Error on wrong import path.
diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index 53320c3..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,185 +0,0 @@
-This software is licensed under the LGPLv3, included below.
-
-As a special exception to the GNU Lesser General Public License version 3
-("LGPL3"), the copyright holders of this Library give you permission to
-convey to a third party a Combined Work that links statically or dynamically
-to this Library without providing any Minimal Corresponding Source or
-Minimal Application Code as set out in 4d or providing the installation
-information set out in section 4e, provided that you comply with the other
-provisions of LGPL3 and provided that you meet, for the Application the
-terms and conditions of the license(s) which apply to the Application.
-
-Except as stated in this special exception, the provisions of LGPL3 will
-continue to comply in full to this Library. If you modify this Library, you
-may apply this exception to your version of this Library, but you are not
-obliged to do so. If you do not wish to do so, delete this exception
-statement from your version. This exception does not (and cannot) modify any
-license terms which apply to the Application, with which you must still
-comply.
-
-
- GNU LESSER GENERAL PUBLIC LICENSE
- Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
- This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
- 0. Additional Definitions.
-
- As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
- "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
- An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
- A "Combined Work" is a work produced by combining or linking an
-Application with the Library. The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
- The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
- The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
- 1. Exception to Section 3 of the GNU GPL.
-
- You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
- 2. Conveying Modified Versions.
-
- If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
- a) under this License, provided that you make a good faith effort to
- ensure that, in the event an Application does not supply the
- function or data, the facility still operates, and performs
- whatever part of its purpose remains meaningful, or
-
- b) under the GNU GPL, with none of the additional permissions of
- this License applicable to that copy.
-
- 3. Object Code Incorporating Material from Library Header Files.
-
- The object code form of an Application may incorporate material from
-a header file that is part of the Library. You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
- a) Give prominent notice with each copy of the object code that the
- Library is used in it and that the Library and its use are
- covered by this License.
-
- b) Accompany the object code with a copy of the GNU GPL and this license
- document.
-
- 4. Combined Works.
-
- You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
-engineering for debugging such modifications, if you also do each of
-the following:
-
- a) Give prominent notice with each copy of the Combined Work that
- the Library is used in it and that the Library and its use are
- covered by this License.
-
- b) Accompany the Combined Work with a copy of the GNU GPL and this license
- document.
-
- c) For a Combined Work that displays copyright notices during
- execution, include the copyright notice for the Library among
- these notices, as well as a reference directing the user to the
- copies of the GNU GPL and this license document.
-
- d) Do one of the following:
-
- 0) Convey the Minimal Corresponding Source under the terms of this
- License, and the Corresponding Application Code in a form
- suitable for, and under terms that permit, the user to
- recombine or relink the Application with a modified version of
- the Linked Version to produce a modified Combined Work, in the
- manner specified by section 6 of the GNU GPL for conveying
- Corresponding Source.
-
- 1) Use a suitable shared library mechanism for linking with the
- Library. A suitable mechanism is one that (a) uses at run time
- a copy of the Library already present on the user's computer
- system, and (b) will operate properly with a modified version
- of the Library that is interface-compatible with the Linked
- Version.
-
- e) Provide Installation Information, but only if you would otherwise
- be required to provide such information under section 6 of the
- GNU GPL, and only to the extent that such information is
- necessary to install and execute a modified version of the
- Combined Work produced by recombining or relinking the
- Application with a modified version of the Linked Version. (If
- you use option 4d0, the Installation Information must accompany
- the Minimal Corresponding Source and Corresponding Application
- Code. If you use option 4d1, you must provide the Installation
- Information in the manner specified by section 6 of the GNU GPL
- for conveying Corresponding Source.)
-
- 5. Combined Libraries.
-
- You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
- a) Accompany the combined library with a copy of the same work based
- on the Library, uncombined with any other library facilities,
- conveyed under the terms of this License.
-
- b) Give prominent notice with the combined library that part of it
- is a work based on the Library, and explaining where to find the
- accompanying uncombined form of the same work.
-
- 6. Revised Versions of the GNU Lesser General Public License.
-
- The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
- Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
- If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.
diff --git a/LICENSE.libyaml b/LICENSE.libyaml
deleted file mode 100644
index 050ced2..0000000
--- a/LICENSE.libyaml
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2006 Kirill Simonov
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/README.md b/README.md
deleted file mode 100644
index 896687b..0000000
--- a/README.md
+++ /dev/null
@@ -1,128 +0,0 @@
-# YAML support for the Go language
-
-Introduction
-------------
-
-The yaml package enables Go programs to comfortably encode and decode YAML
-values. It was developed within [Canonical](https://www.canonical.com) as
-part of the [juju](https://juju.ubuntu.com) project, and is based on a
-pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
-C library to parse and generate YAML data quickly and reliably.
-
-Compatibility
--------------
-
-The yaml package is almost compatible with YAML 1.1, including support for
-anchors, tags, etc. There are still a few missing bits, such as document
-merging, base-60 floats (huh?), and multi-document unmarshalling. These
-features are not hard to add, and will be introduced as necessary.
-
-Installation and usage
-----------------------
-
-The import path for the package is *gopkg.in/yaml.v1*.
-
-To install it, run:
-
- go get gopkg.in/yaml.v1
-
-API documentation
------------------
-
-If opened in a browser, the import path itself leads to the API documentation:
-
- * [https://gopkg.in/yaml.v1](https://gopkg.in/yaml.v1)
-
-API stability
--------------
-
-The package API for yaml v1 will remain stable as described in [gopkg.in](https://gopkg.in).
-
-
-License
--------
-
-The yaml package is licensed under the LGPL with an exception that allows it to be linked statically. Please see the LICENSE file for details.
-
-
-Example
--------
-
-```Go
-package main
-
-import (
- "fmt"
- "log"
-
- "gopkg.in/yaml.v1"
-)
-
-var data = `
-a: Easy!
-b:
- c: 2
- d: [3, 4]
-`
-
-type T struct {
- A string
- B struct{C int; D []int ",flow"}
-}
-
-func main() {
- t := T{}
-
- err := yaml.Unmarshal([]byte(data), &t)
- if err != nil {
- log.Fatalf("error: %v", err)
- }
- fmt.Printf("--- t:\n%v\n\n", t)
-
- d, err := yaml.Marshal(&t)
- if err != nil {
- log.Fatalf("error: %v", err)
- }
- fmt.Printf("--- t dump:\n%s\n\n", string(d))
-
- m := make(map[interface{}]interface{})
-
- err = yaml.Unmarshal([]byte(data), &m)
- if err != nil {
- log.Fatalf("error: %v", err)
- }
- fmt.Printf("--- m:\n%v\n\n", m)
-
- d, err = yaml.Marshal(&m)
- if err != nil {
- log.Fatalf("error: %v", err)
- }
- fmt.Printf("--- m dump:\n%s\n\n", string(d))
-}
-```
-
-This example will generate the following output:
-
-```
---- t:
-{Easy! {2 [3 4]}}
-
---- t dump:
-a: Easy!
-b:
- c: 2
- d: [3, 4]
-
-
---- m:
-map[a:Easy! b:map[c:2 d:[3 4]]]
-
---- m dump:
-a: Easy!
-b:
- c: 2
- d:
- - 3
- - 4
-```
-
diff --git a/apic.go b/apic.go
deleted file mode 100644
index 95ec014..0000000
--- a/apic.go
+++ /dev/null
@@ -1,742 +0,0 @@
-package yaml
-
-import (
- "io"
- "os"
-)
-
-func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
- //fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
-
- // Check if we can move the queue at the beginning of the buffer.
- if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
- if parser.tokens_head != len(parser.tokens) {
- copy(parser.tokens, parser.tokens[parser.tokens_head:])
- }
- parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
- parser.tokens_head = 0
- }
- parser.tokens = append(parser.tokens, *token)
- if pos < 0 {
- return
- }
- copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
- parser.tokens[parser.tokens_head+pos] = *token
-}
-
-// Create a new parser object.
-func yaml_parser_initialize(parser *yaml_parser_t) bool {
- *parser = yaml_parser_t{
- raw_buffer: make([]byte, 0, input_raw_buffer_size),
- buffer: make([]byte, 0, input_buffer_size),
- }
- return true
-}
-
-// Destroy a parser object.
-func yaml_parser_delete(parser *yaml_parser_t) {
- *parser = yaml_parser_t{}
-}
-
-// String read handler.
-func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
- if parser.input_pos == len(parser.input) {
- return 0, io.EOF
- }
- n = copy(buffer, parser.input[parser.input_pos:])
- parser.input_pos += n
- return n, nil
-}
-
-// File read handler.
-func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
- return parser.input_file.Read(buffer)
-}
-
-// Set a string input.
-func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
- if parser.read_handler != nil {
- panic("must set the input source only once")
- }
- parser.read_handler = yaml_string_read_handler
- parser.input = input
- parser.input_pos = 0
-}
-
-// Set a file input.
-func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
- if parser.read_handler != nil {
- panic("must set the input source only once")
- }
- parser.read_handler = yaml_file_read_handler
- parser.input_file = file
-}
-
-// Set the source encoding.
-func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
- if parser.encoding != yaml_ANY_ENCODING {
- panic("must set the encoding only once")
- }
- parser.encoding = encoding
-}
-
-// Create a new emitter object.
-func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
- *emitter = yaml_emitter_t{
- buffer: make([]byte, output_buffer_size),
- raw_buffer: make([]byte, 0, output_raw_buffer_size),
- states: make([]yaml_emitter_state_t, 0, initial_stack_size),
- events: make([]yaml_event_t, 0, initial_queue_size),
- }
- return true
-}
-
-// Destroy an emitter object.
-func yaml_emitter_delete(emitter *yaml_emitter_t) {
- *emitter = yaml_emitter_t{}
-}
-
-// String write handler.
-func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
- *emitter.output_buffer = append(*emitter.output_buffer, buffer...)
- return nil
-}
-
-// File write handler.
-func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
- _, err := emitter.output_file.Write(buffer)
- return err
-}
-
-// Set a string output.
-func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
- if emitter.write_handler != nil {
- panic("must set the output target only once")
- }
- emitter.write_handler = yaml_string_write_handler
- emitter.output_buffer = output_buffer
-}
-
-// Set a file output.
-func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
- if emitter.write_handler != nil {
- panic("must set the output target only once")
- }
- emitter.write_handler = yaml_file_write_handler
- emitter.output_file = file
-}
-
-// Set the output encoding.
-func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
- if emitter.encoding != yaml_ANY_ENCODING {
- panic("must set the output encoding only once")
- }
- emitter.encoding = encoding
-}
-
-// Set the canonical output style.
-func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
- emitter.canonical = canonical
-}
-
-//// Set the indentation increment.
-func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
- if indent < 2 || indent > 9 {
- indent = 2
- }
- emitter.best_indent = indent
-}
-
-// Set the preferred line width.
-func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
- if width < 0 {
- width = -1
- }
- emitter.best_width = width
-}
-
-// Set if unescaped non-ASCII characters are allowed.
-func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
- emitter.unicode = unicode
-}
-
-// Set the preferred line break character.
-func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
- emitter.line_break = line_break
-}
-
-///*
-// * Destroy a token object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_token_delete(yaml_token_t *token)
-//{
-// assert(token); // Non-NULL token object expected.
-//
-// switch (token.type)
-// {
-// case YAML_TAG_DIRECTIVE_TOKEN:
-// yaml_free(token.data.tag_directive.handle);
-// yaml_free(token.data.tag_directive.prefix);
-// break;
-//
-// case YAML_ALIAS_TOKEN:
-// yaml_free(token.data.alias.value);
-// break;
-//
-// case YAML_ANCHOR_TOKEN:
-// yaml_free(token.data.anchor.value);
-// break;
-//
-// case YAML_TAG_TOKEN:
-// yaml_free(token.data.tag.handle);
-// yaml_free(token.data.tag.suffix);
-// break;
-//
-// case YAML_SCALAR_TOKEN:
-// yaml_free(token.data.scalar.value);
-// break;
-//
-// default:
-// break;
-// }
-//
-// memset(token, 0, sizeof(yaml_token_t));
-//}
-//
-///*
-// * Check if a string is a valid UTF-8 sequence.
-// *
-// * Check 'reader.c' for more details on UTF-8 encoding.
-// */
-//
-//static int
-//yaml_check_utf8(yaml_char_t *start, size_t length)
-//{
-// yaml_char_t *end = start+length;
-// yaml_char_t *pointer = start;
-//
-// while (pointer < end) {
-// unsigned char octet;
-// unsigned int width;
-// unsigned int value;
-// size_t k;
-//
-// octet = pointer[0];
-// width = (octet & 0x80) == 0x00 ? 1 :
-// (octet & 0xE0) == 0xC0 ? 2 :
-// (octet & 0xF0) == 0xE0 ? 3 :
-// (octet & 0xF8) == 0xF0 ? 4 : 0;
-// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
-// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
-// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
-// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
-// if (!width) return 0;
-// if (pointer+width > end) return 0;
-// for (k = 1; k < width; k ++) {
-// octet = pointer[k];
-// if ((octet & 0xC0) != 0x80) return 0;
-// value = (value << 6) + (octet & 0x3F);
-// }
-// if (!((width == 1) ||
-// (width == 2 && value >= 0x80) ||
-// (width == 3 && value >= 0x800) ||
-// (width == 4 && value >= 0x10000))) return 0;
-//
-// pointer += width;
-// }
-//
-// return 1;
-//}
-//
-
-// Create STREAM-START.
-func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
- *event = yaml_event_t{
- typ: yaml_STREAM_START_EVENT,
- encoding: encoding,
- }
- return true
-}
-
-// Create STREAM-END.
-func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
- *event = yaml_event_t{
- typ: yaml_STREAM_END_EVENT,
- }
- return true
-}
-
-// Create DOCUMENT-START.
-func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
- tag_directives []yaml_tag_directive_t, implicit bool) bool {
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_START_EVENT,
- version_directive: version_directive,
- tag_directives: tag_directives,
- implicit: implicit,
- }
- return true
-}
-
-// Create DOCUMENT-END.
-func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_END_EVENT,
- implicit: implicit,
- }
- return true
-}
-
-///*
-// * Create ALIAS.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
-//{
-// mark yaml_mark_t = { 0, 0, 0 }
-// anchor_copy *yaml_char_t = NULL
-//
-// assert(event) // Non-NULL event object is expected.
-// assert(anchor) // Non-NULL anchor is expected.
-//
-// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
-//
-// anchor_copy = yaml_strdup(anchor)
-// if (!anchor_copy)
-// return 0
-//
-// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
-//
-// return 1
-//}
-
-// Create SCALAR.
-func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
- *event = yaml_event_t{
- typ: yaml_SCALAR_EVENT,
- anchor: anchor,
- tag: tag,
- value: value,
- implicit: plain_implicit,
- quoted_implicit: quoted_implicit,
- style: yaml_style_t(style),
- }
- return true
-}
-
-// Create SEQUENCE-START.
-func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_START_EVENT,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(style),
- }
- return true
-}
-
-// Create SEQUENCE-END.
-func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_END_EVENT,
- }
- return true
-}
-
-// Create MAPPING-START.
-func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
- *event = yaml_event_t{
- typ: yaml_MAPPING_START_EVENT,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(style),
- }
- return true
-}
-
-// Create MAPPING-END.
-func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
- *event = yaml_event_t{
- typ: yaml_MAPPING_END_EVENT,
- }
- return true
-}
-
-// Destroy an event object.
-func yaml_event_delete(event *yaml_event_t) {
- *event = yaml_event_t{}
-}
-
-///*
-// * Create a document object.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_initialize(document *yaml_document_t,
-// version_directive *yaml_version_directive_t,
-// tag_directives_start *yaml_tag_directive_t,
-// tag_directives_end *yaml_tag_directive_t,
-// start_implicit int, end_implicit int)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-// struct {
-// start *yaml_node_t
-// end *yaml_node_t
-// top *yaml_node_t
-// } nodes = { NULL, NULL, NULL }
-// version_directive_copy *yaml_version_directive_t = NULL
-// struct {
-// start *yaml_tag_directive_t
-// end *yaml_tag_directive_t
-// top *yaml_tag_directive_t
-// } tag_directives_copy = { NULL, NULL, NULL }
-// value yaml_tag_directive_t = { NULL, NULL }
-// mark yaml_mark_t = { 0, 0, 0 }
-//
-// assert(document) // Non-NULL document object is expected.
-// assert((tag_directives_start && tag_directives_end) ||
-// (tag_directives_start == tag_directives_end))
-// // Valid tag directives are expected.
-//
-// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
-//
-// if (version_directive) {
-// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
-// if (!version_directive_copy) goto error
-// version_directive_copy.major = version_directive.major
-// version_directive_copy.minor = version_directive.minor
-// }
-//
-// if (tag_directives_start != tag_directives_end) {
-// tag_directive *yaml_tag_directive_t
-// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
-// goto error
-// for (tag_directive = tag_directives_start
-// tag_directive != tag_directives_end; tag_directive ++) {
-// assert(tag_directive.handle)
-// assert(tag_directive.prefix)
-// if (!yaml_check_utf8(tag_directive.handle,
-// strlen((char *)tag_directive.handle)))
-// goto error
-// if (!yaml_check_utf8(tag_directive.prefix,
-// strlen((char *)tag_directive.prefix)))
-// goto error
-// value.handle = yaml_strdup(tag_directive.handle)
-// value.prefix = yaml_strdup(tag_directive.prefix)
-// if (!value.handle || !value.prefix) goto error
-// if (!PUSH(&context, tag_directives_copy, value))
-// goto error
-// value.handle = NULL
-// value.prefix = NULL
-// }
-// }
-//
-// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
-// tag_directives_copy.start, tag_directives_copy.top,
-// start_implicit, end_implicit, mark, mark)
-//
-// return 1
-//
-//error:
-// STACK_DEL(&context, nodes)
-// yaml_free(version_directive_copy)
-// while (!STACK_EMPTY(&context, tag_directives_copy)) {
-// value yaml_tag_directive_t = POP(&context, tag_directives_copy)
-// yaml_free(value.handle)
-// yaml_free(value.prefix)
-// }
-// STACK_DEL(&context, tag_directives_copy)
-// yaml_free(value.handle)
-// yaml_free(value.prefix)
-//
-// return 0
-//}
-//
-///*
-// * Destroy a document object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_document_delete(document *yaml_document_t)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-// tag_directive *yaml_tag_directive_t
-//
-// context.error = YAML_NO_ERROR // Eliminate a compliler warning.
-//
-// assert(document) // Non-NULL document object is expected.
-//
-// while (!STACK_EMPTY(&context, document.nodes)) {
-// node yaml_node_t = POP(&context, document.nodes)
-// yaml_free(node.tag)
-// switch (node.type) {
-// case YAML_SCALAR_NODE:
-// yaml_free(node.data.scalar.value)
-// break
-// case YAML_SEQUENCE_NODE:
-// STACK_DEL(&context, node.data.sequence.items)
-// break
-// case YAML_MAPPING_NODE:
-// STACK_DEL(&context, node.data.mapping.pairs)
-// break
-// default:
-// assert(0) // Should not happen.
-// }
-// }
-// STACK_DEL(&context, document.nodes)
-//
-// yaml_free(document.version_directive)
-// for (tag_directive = document.tag_directives.start
-// tag_directive != document.tag_directives.end
-// tag_directive++) {
-// yaml_free(tag_directive.handle)
-// yaml_free(tag_directive.prefix)
-// }
-// yaml_free(document.tag_directives.start)
-//
-// memset(document, 0, sizeof(yaml_document_t))
-//}
-//
-///**
-// * Get a document node.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_node(document *yaml_document_t, index int)
-//{
-// assert(document) // Non-NULL document object is expected.
-//
-// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
-// return document.nodes.start + index - 1
-// }
-// return NULL
-//}
-//
-///**
-// * Get the root object.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_root_node(document *yaml_document_t)
-//{
-// assert(document) // Non-NULL document object is expected.
-//
-// if (document.nodes.top != document.nodes.start) {
-// return document.nodes.start
-// }
-// return NULL
-//}
-//
-///*
-// * Add a scalar node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_scalar(document *yaml_document_t,
-// tag *yaml_char_t, value *yaml_char_t, length int,
-// style yaml_scalar_style_t)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-// mark yaml_mark_t = { 0, 0, 0 }
-// tag_copy *yaml_char_t = NULL
-// value_copy *yaml_char_t = NULL
-// node yaml_node_t
-//
-// assert(document) // Non-NULL document object is expected.
-// assert(value) // Non-NULL value is expected.
-//
-// if (!tag) {
-// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
-// }
-//
-// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-// tag_copy = yaml_strdup(tag)
-// if (!tag_copy) goto error
-//
-// if (length < 0) {
-// length = strlen((char *)value)
-// }
-//
-// if (!yaml_check_utf8(value, length)) goto error
-// value_copy = yaml_malloc(length+1)
-// if (!value_copy) goto error
-// memcpy(value_copy, value, length)
-// value_copy[length] = '\0'
-//
-// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
-// if (!PUSH(&context, document.nodes, node)) goto error
-//
-// return document.nodes.top - document.nodes.start
-//
-//error:
-// yaml_free(tag_copy)
-// yaml_free(value_copy)
-//
-// return 0
-//}
-//
-///*
-// * Add a sequence node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_sequence(document *yaml_document_t,
-// tag *yaml_char_t, style yaml_sequence_style_t)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-// mark yaml_mark_t = { 0, 0, 0 }
-// tag_copy *yaml_char_t = NULL
-// struct {
-// start *yaml_node_item_t
-// end *yaml_node_item_t
-// top *yaml_node_item_t
-// } items = { NULL, NULL, NULL }
-// node yaml_node_t
-//
-// assert(document) // Non-NULL document object is expected.
-//
-// if (!tag) {
-// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
-// }
-//
-// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-// tag_copy = yaml_strdup(tag)
-// if (!tag_copy) goto error
-//
-// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
-//
-// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
-// style, mark, mark)
-// if (!PUSH(&context, document.nodes, node)) goto error
-//
-// return document.nodes.top - document.nodes.start
-//
-//error:
-// STACK_DEL(&context, items)
-// yaml_free(tag_copy)
-//
-// return 0
-//}
-//
-///*
-// * Add a mapping node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_mapping(document *yaml_document_t,
-// tag *yaml_char_t, style yaml_mapping_style_t)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-// mark yaml_mark_t = { 0, 0, 0 }
-// tag_copy *yaml_char_t = NULL
-// struct {
-// start *yaml_node_pair_t
-// end *yaml_node_pair_t
-// top *yaml_node_pair_t
-// } pairs = { NULL, NULL, NULL }
-// node yaml_node_t
-//
-// assert(document) // Non-NULL document object is expected.
-//
-// if (!tag) {
-// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
-// }
-//
-// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-// tag_copy = yaml_strdup(tag)
-// if (!tag_copy) goto error
-//
-// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
-//
-// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
-// style, mark, mark)
-// if (!PUSH(&context, document.nodes, node)) goto error
-//
-// return document.nodes.top - document.nodes.start
-//
-//error:
-// STACK_DEL(&context, pairs)
-// yaml_free(tag_copy)
-//
-// return 0
-//}
-//
-///*
-// * Append an item to a sequence node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_sequence_item(document *yaml_document_t,
-// sequence int, item int)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-//
-// assert(document) // Non-NULL document is required.
-// assert(sequence > 0
-// && document.nodes.start + sequence <= document.nodes.top)
-// // Valid sequence id is required.
-// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
-// // A sequence node is required.
-// assert(item > 0 && document.nodes.start + item <= document.nodes.top)
-// // Valid item id is required.
-//
-// if (!PUSH(&context,
-// document.nodes.start[sequence-1].data.sequence.items, item))
-// return 0
-//
-// return 1
-//}
-//
-///*
-// * Append a pair of a key and a value to a mapping node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_mapping_pair(document *yaml_document_t,
-// mapping int, key int, value int)
-//{
-// struct {
-// error yaml_error_type_t
-// } context
-//
-// pair yaml_node_pair_t
-//
-// assert(document) // Non-NULL document is required.
-// assert(mapping > 0
-// && document.nodes.start + mapping <= document.nodes.top)
-// // Valid mapping id is required.
-// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
-// // A mapping node is required.
-// assert(key > 0 && document.nodes.start + key <= document.nodes.top)
-// // Valid key id is required.
-// assert(value > 0 && document.nodes.start + value <= document.nodes.top)
-// // Valid value id is required.
-//
-// pair.key = key
-// pair.value = value
-//
-// if (!PUSH(&context,
-// document.nodes.start[mapping-1].data.mapping.pairs, pair))
-// return 0
-//
-// return 1
-//}
-//
-//
diff --git a/decode.go b/decode.go
deleted file mode 100644
index fd1ff96..0000000
--- a/decode.go
+++ /dev/null
@@ -1,473 +0,0 @@
-package yaml
-
-import (
- "reflect"
- "strconv"
-)
-
-const (
- documentNode = 1 << iota
- mappingNode
- sequenceNode
- scalarNode
- aliasNode
-)
-
-type node struct {
- kind int
- line, column int
- tag string
- value string
- implicit bool
- children []*node
- anchors map[string]*node
-}
-
-// ----------------------------------------------------------------------------
-// Parser, produces a node tree out of a libyaml event stream.
-
-type parser struct {
- parser yaml_parser_t
- event yaml_event_t
- doc *node
-}
-
-func newParser(b []byte) *parser {
- p := parser{}
- if !yaml_parser_initialize(&p.parser) {
- panic("Failed to initialize YAML emitter")
- }
-
- if len(b) == 0 {
- b = []byte{'\n'}
- }
-
- yaml_parser_set_input_string(&p.parser, b)
-
- p.skip()
- if p.event.typ != yaml_STREAM_START_EVENT {
- panic("Expected stream start event, got " + strconv.Itoa(int(p.event.typ)))
- }
- p.skip()
- return &p
-}
-
-func (p *parser) destroy() {
- if p.event.typ != yaml_NO_EVENT {
- yaml_event_delete(&p.event)
- }
- yaml_parser_delete(&p.parser)
-}
-
-func (p *parser) skip() {
- if p.event.typ != yaml_NO_EVENT {
- if p.event.typ == yaml_STREAM_END_EVENT {
- panic("Attempted to go past the end of stream. Corrupted value?")
- }
- yaml_event_delete(&p.event)
- }
- if !yaml_parser_parse(&p.parser, &p.event) {
- p.fail()
- }
-}
-
-func (p *parser) fail() {
- var where string
- var line int
- if p.parser.problem_mark.line != 0 {
- line = p.parser.problem_mark.line
- } else if p.parser.context_mark.line != 0 {
- line = p.parser.context_mark.line
- }
- if line != 0 {
- where = "line " + strconv.Itoa(line) + ": "
- }
- var msg string
- if len(p.parser.problem) > 0 {
- msg = p.parser.problem
- } else {
- msg = "Unknown problem parsing YAML content"
- }
- panic(where + msg)
-}
-
-func (p *parser) anchor(n *node, anchor []byte) {
- if anchor != nil {
- p.doc.anchors[string(anchor)] = n
- }
-}
-
-func (p *parser) parse() *node {
- switch p.event.typ {
- case yaml_SCALAR_EVENT:
- return p.scalar()
- case yaml_ALIAS_EVENT:
- return p.alias()
- case yaml_MAPPING_START_EVENT:
- return p.mapping()
- case yaml_SEQUENCE_START_EVENT:
- return p.sequence()
- case yaml_DOCUMENT_START_EVENT:
- return p.document()
- case yaml_STREAM_END_EVENT:
- // Happens when attempting to decode an empty buffer.
- return nil
- default:
- panic("Attempted to parse unknown event: " +
- strconv.Itoa(int(p.event.typ)))
- }
- panic("Unreachable")
-}
-
-func (p *parser) node(kind int) *node {
- return &node{
- kind: kind,
- line: p.event.start_mark.line,
- column: p.event.start_mark.column,
- }
-}
-
-func (p *parser) document() *node {
- n := p.node(documentNode)
- n.anchors = make(map[string]*node)
- p.doc = n
- p.skip()
- n.children = append(n.children, p.parse())
- if p.event.typ != yaml_DOCUMENT_END_EVENT {
- panic("Expected end of document event but got " +
- strconv.Itoa(int(p.event.typ)))
- }
- p.skip()
- return n
-}
-
-func (p *parser) alias() *node {
- n := p.node(aliasNode)
- n.value = string(p.event.anchor)
- p.skip()
- return n
-}
-
-func (p *parser) scalar() *node {
- n := p.node(scalarNode)
- n.value = string(p.event.value)
- n.tag = string(p.event.tag)
- n.implicit = p.event.implicit
- p.anchor(n, p.event.anchor)
- p.skip()
- return n
-}
-
-func (p *parser) sequence() *node {
- n := p.node(sequenceNode)
- p.anchor(n, p.event.anchor)
- p.skip()
- for p.event.typ != yaml_SEQUENCE_END_EVENT {
- n.children = append(n.children, p.parse())
- }
- p.skip()
- return n
-}
-
-func (p *parser) mapping() *node {
- n := p.node(mappingNode)
- p.anchor(n, p.event.anchor)
- p.skip()
- for p.event.typ != yaml_MAPPING_END_EVENT {
- n.children = append(n.children, p.parse(), p.parse())
- }
- p.skip()
- return n
-}
-
-// ----------------------------------------------------------------------------
-// Decoder, unmarshals a node into a provided value.
-
-type decoder struct {
- doc *node
- aliases map[string]bool
-}
-
-func newDecoder() *decoder {
- d := &decoder{}
- d.aliases = make(map[string]bool)
- return d
-}
-
-// d.setter deals with setters and pointer dereferencing and initialization.
-//
-// It's a slightly convoluted case to handle properly:
-//
-// - nil pointers should be initialized, unless being set to nil
-// - we don't know at this point yet what's the value to SetYAML() with.
-// - we can't separate pointer deref/init and setter checking, because
-// a setter may be found while going down a pointer chain.
-//
-// Thus, here is how it takes care of it:
-//
-// - out is provided as a pointer, so that it can be replaced.
-// - when looking at a non-setter ptr, *out=ptr.Elem(), unless tag=!!null
-// - when a setter is found, *out=interface{}, and a set() function is
-// returned to call SetYAML() with the value of *out once it's defined.
-//
-func (d *decoder) setter(tag string, out *reflect.Value, good *bool) (set func()) {
- again := true
- for again {
- again = false
- setter, _ := (*out).Interface().(Setter)
- if tag != "!!null" || setter != nil {
- if pv := (*out); pv.Kind() == reflect.Ptr {
- if pv.IsNil() {
- *out = reflect.New(pv.Type().Elem()).Elem()
- pv.Set((*out).Addr())
- } else {
- *out = pv.Elem()
- }
- setter, _ = pv.Interface().(Setter)
- again = true
- }
- }
- if setter != nil {
- var arg interface{}
- *out = reflect.ValueOf(&arg).Elem()
- return func() {
- *good = setter.SetYAML(tag, arg)
- }
- }
- }
- return nil
-}
-
-func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
- switch n.kind {
- case documentNode:
- good = d.document(n, out)
- case scalarNode:
- good = d.scalar(n, out)
- case aliasNode:
- good = d.alias(n, out)
- case mappingNode:
- good = d.mapping(n, out)
- case sequenceNode:
- good = d.sequence(n, out)
- default:
- panic("Internal error: unknown node kind: " + strconv.Itoa(n.kind))
- }
- return
-}
-
-func (d *decoder) document(n *node, out reflect.Value) (good bool) {
- if len(n.children) == 1 {
- d.doc = n
- d.unmarshal(n.children[0], out)
- return true
- }
- return false
-}
-
-func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
- an, ok := d.doc.anchors[n.value]
- if !ok {
- panic("Unknown anchor '" + n.value + "' referenced")
- }
- if d.aliases[n.value] {
- panic("Anchor '" + n.value + "' value contains itself")
- }
- d.aliases[n.value] = true
- good = d.unmarshal(an, out)
- delete(d.aliases, n.value)
- return good
-}
-
-func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
- var tag string
- var resolved interface{}
- if n.tag == "" && !n.implicit {
- resolved = n.value
- } else {
- tag, resolved = resolve(n.tag, n.value)
- if set := d.setter(tag, &out, &good); set != nil {
- defer set()
- }
- }
- switch out.Kind() {
- case reflect.String:
- if resolved != nil {
- out.SetString(n.value)
- good = true
- }
- case reflect.Interface:
- if resolved == nil {
- out.Set(reflect.Zero(out.Type()))
- } else {
- out.Set(reflect.ValueOf(resolved))
- }
- good = true
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- switch resolved := resolved.(type) {
- case int:
- if !out.OverflowInt(int64(resolved)) {
- out.SetInt(int64(resolved))
- good = true
- }
- case int64:
- if !out.OverflowInt(resolved) {
- out.SetInt(resolved)
- good = true
- }
- case float64:
- if resolved < 1<<63-1 && !out.OverflowInt(int64(resolved)) {
- out.SetInt(int64(resolved))
- good = true
- }
- }
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- switch resolved := resolved.(type) {
- case int:
- if resolved >= 0 {
- out.SetUint(uint64(resolved))
- good = true
- }
- case int64:
- if resolved >= 0 {
- out.SetUint(uint64(resolved))
- good = true
- }
- case float64:
- if resolved < 1<<64-1 && !out.OverflowUint(uint64(resolved)) {
- out.SetUint(uint64(resolved))
- good = true
- }
- }
- case reflect.Bool:
- switch resolved := resolved.(type) {
- case bool:
- out.SetBool(resolved)
- good = true
- }
- case reflect.Float32, reflect.Float64:
- switch resolved := resolved.(type) {
- case int:
- out.SetFloat(float64(resolved))
- good = true
- case int64:
- out.SetFloat(float64(resolved))
- good = true
- case float64:
- out.SetFloat(resolved)
- good = true
- }
- case reflect.Ptr:
- switch resolved.(type) {
- case nil:
- out.Set(reflect.Zero(out.Type()))
- good = true
- default:
- if out.Type().Elem() == reflect.TypeOf(resolved) {
- elem := reflect.New(out.Type().Elem())
- elem.Elem().Set(reflect.ValueOf(resolved))
- out.Set(elem)
- good = true
- }
- }
- }
- return good
-}
-
-func settableValueOf(i interface{}) reflect.Value {
- v := reflect.ValueOf(i)
- sv := reflect.New(v.Type()).Elem()
- sv.Set(v)
- return sv
-}
-
-func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
- if set := d.setter("!!seq", &out, &good); set != nil {
- defer set()
- }
- var iface reflect.Value
- if out.Kind() == reflect.Interface {
- // No type hints. Will have to use a generic sequence.
- iface = out
- out = settableValueOf(make([]interface{}, 0))
- }
-
- if out.Kind() != reflect.Slice {
- return false
- }
- et := out.Type().Elem()
-
- l := len(n.children)
- for i := 0; i < l; i++ {
- e := reflect.New(et).Elem()
- if ok := d.unmarshal(n.children[i], e); ok {
- out.Set(reflect.Append(out, e))
- }
- }
- if iface.IsValid() {
- iface.Set(out)
- }
- return true
-}
-
-func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
- if set := d.setter("!!map", &out, &good); set != nil {
- defer set()
- }
- if out.Kind() == reflect.Struct {
- return d.mappingStruct(n, out)
- }
-
- if out.Kind() == reflect.Interface {
- // No type hints. Will have to use a generic map.
- iface := out
- out = settableValueOf(make(map[interface{}]interface{}))
- iface.Set(out)
- }
-
- if out.Kind() != reflect.Map {
- return false
- }
- outt := out.Type()
- kt := outt.Key()
- et := outt.Elem()
-
- if out.IsNil() {
- out.Set(reflect.MakeMap(outt))
- }
- l := len(n.children)
- for i := 0; i < l; i += 2 {
- k := reflect.New(kt).Elem()
- if d.unmarshal(n.children[i], k) {
- e := reflect.New(et).Elem()
- if d.unmarshal(n.children[i+1], e) {
- out.SetMapIndex(k, e)
- }
- }
- }
- return true
-}
-
-func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
- sinfo, err := getStructInfo(out.Type())
- if err != nil {
- panic(err)
- }
- name := settableValueOf("")
- l := len(n.children)
- for i := 0; i < l; i += 2 {
- if !d.unmarshal(n.children[i], name) {
- continue
- }
- if info, ok := sinfo.FieldsMap[name.String()]; ok {
- var field reflect.Value
- if info.Inline == nil {
- field = out.Field(info.Num)
- } else {
- field = out.FieldByIndex(info.Inline)
- }
- d.unmarshal(n.children[i+1], field)
- }
- }
- return true
-}
diff --git a/decode_test.go b/decode_test.go
deleted file mode 100644
index 224e369..0000000
--- a/decode_test.go
+++ /dev/null
@@ -1,533 +0,0 @@
-package yaml_test
-
-import (
- . "launchpad.net/gocheck"
- "gopkg.in/yaml.v1"
- "math"
- "reflect"
-)
-
-var unmarshalIntTest = 123
-
-var unmarshalTests = []struct {
- data string
- value interface{}
-}{
- {
- "",
- &struct{}{},
- }, {
- "{}", &struct{}{},
- }, {
- "v: hi",
- map[string]string{"v": "hi"},
- }, {
- "v: hi", map[string]interface{}{"v": "hi"},
- }, {
- "v: true",
- map[string]string{"v": "true"},
- }, {
- "v: true",
- map[string]interface{}{"v": true},
- }, {
- "v: 10",
- map[string]interface{}{"v": 10},
- }, {
- "v: 0b10",
- map[string]interface{}{"v": 2},
- }, {
- "v: 0xA",
- map[string]interface{}{"v": 10},
- }, {
- "v: 4294967296",
- map[string]int64{"v": 4294967296},
- }, {
- "v: 0.1",
- map[string]interface{}{"v": 0.1},
- }, {
- "v: .1",
- map[string]interface{}{"v": 0.1},
- }, {
- "v: .Inf",
- map[string]interface{}{"v": math.Inf(+1)},
- }, {
- "v: -.Inf",
- map[string]interface{}{"v": math.Inf(-1)},
- }, {
- "v: -10",
- map[string]interface{}{"v": -10},
- }, {
- "v: -.1",
- map[string]interface{}{"v": -0.1},
- },
-
- // Simple values.
- {
- "123",
- &unmarshalIntTest,
- },
-
- // Floats from spec
- {
- "canonical: 6.8523e+5",
- map[string]interface{}{"canonical": 6.8523e+5},
- }, {
- "expo: 685.230_15e+03",
- map[string]interface{}{"expo": 685.23015e+03},
- }, {
- "fixed: 685_230.15",
- map[string]interface{}{"fixed": 685230.15},
- }, {
- "neginf: -.inf",
- map[string]interface{}{"neginf": math.Inf(-1)},
- }, {
- "fixed: 685_230.15",
- map[string]float64{"fixed": 685230.15},
- },
- //{"sexa: 190:20:30.15", map[string]interface{}{"sexa": 0}}, // Unsupported
- //{"notanum: .NaN", map[string]interface{}{"notanum": math.NaN()}}, // Equality of NaN fails.
-
- // Bools from spec
- {
- "canonical: y",
- map[string]interface{}{"canonical": true},
- }, {
- "answer: NO",
- map[string]interface{}{"answer": false},
- }, {
- "logical: True",
- map[string]interface{}{"logical": true},
- }, {
- "option: on",
- map[string]interface{}{"option": true},
- }, {
- "option: on",
- map[string]bool{"option": true},
- },
- // Ints from spec
- {
- "canonical: 685230",
- map[string]interface{}{"canonical": 685230},
- }, {
- "decimal: +685_230",
- map[string]interface{}{"decimal": 685230},
- }, {
- "octal: 02472256",
- map[string]interface{}{"octal": 685230},
- }, {
- "hexa: 0x_0A_74_AE",
- map[string]interface{}{"hexa": 685230},
- }, {
- "bin: 0b1010_0111_0100_1010_1110",
- map[string]interface{}{"bin": 685230},
- }, {
- "bin: -0b101010",
- map[string]interface{}{"bin": -42},
- }, {
- "decimal: +685_230",
- map[string]int{"decimal": 685230},
- },
-
- //{"sexa: 190:20:30", map[string]interface{}{"sexa": 0}}, // Unsupported
-
- // Nulls from spec
- {
- "empty:",
- map[string]interface{}{"empty": nil},
- }, {
- "canonical: ~",
- map[string]interface{}{"canonical": nil},
- }, {
- "english: null",
- map[string]interface{}{"english": nil},
- }, {
- "~: null key",
- map[interface{}]string{nil: "null key"},
- }, {
- "empty:",
- map[string]*bool{"empty": nil},
- },
-
- // Flow sequence
- {
- "seq: [A,B]",
- map[string]interface{}{"seq": []interface{}{"A", "B"}},
- }, {
- "seq: [A,B,C,]",
- map[string][]string{"seq": []string{"A", "B", "C"}},
- }, {
- "seq: [A,1,C]",
- map[string][]string{"seq": []string{"A", "1", "C"}},
- }, {
- "seq: [A,1,C]",
- map[string][]int{"seq": []int{1}},
- }, {
- "seq: [A,1,C]",
- map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
- },
- // Block sequence
- {
- "seq:\n - A\n - B",
- map[string]interface{}{"seq": []interface{}{"A", "B"}},
- }, {
- "seq:\n - A\n - B\n - C",
- map[string][]string{"seq": []string{"A", "B", "C"}},
- }, {
- "seq:\n - A\n - 1\n - C",
- map[string][]string{"seq": []string{"A", "1", "C"}},
- }, {
- "seq:\n - A\n - 1\n - C",
- map[string][]int{"seq": []int{1}},
- }, {
- "seq:\n - A\n - 1\n - C",
- map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
- },
-
- // Literal block scalar
- {
- "scalar: | # Comment\n\n literal\n\n \ttext\n\n",
- map[string]string{"scalar": "\nliteral\n\n\ttext\n"},
- },
-
- // Folded block scalar
- {
- "scalar: > # Comment\n\n folded\n line\n \n next\n line\n * one\n * two\n\n last\n line\n\n",
- map[string]string{"scalar": "\nfolded line\nnext line\n * one\n * two\n\nlast line\n"},
- },
-
- // Map inside interface with no type hints.
- {
- "a: {b: c}",
- map[string]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
- },
-
- // Structs and type conversions.
- {
- "hello: world",
- &struct{ Hello string }{"world"},
- }, {
- "a: {b: c}",
- &struct{ A struct{ B string } }{struct{ B string }{"c"}},
- }, {
- "a: {b: c}",
- &struct{ A *struct{ B string } }{&struct{ B string }{"c"}},
- }, {
- "a: {b: c}",
- &struct{ A map[string]string }{map[string]string{"b": "c"}},
- }, {
- "a: {b: c}",
- &struct{ A *map[string]string }{&map[string]string{"b": "c"}},
- }, {
- "a:",
- &struct{ A map[string]string }{},
- }, {
- "a: 1",
- &struct{ A int }{1},
- }, {
- "a: 1",
- &struct{ A float64 }{1},
- }, {
- "a: 1.0",
- &struct{ A int }{1},
- }, {
- "a: 1.0",
- &struct{ A uint }{1},
- }, {
- "a: [1, 2]",
- &struct{ A []int }{[]int{1, 2}},
- }, {
- "a: 1",
- &struct{ B int }{0},
- }, {
- "a: 1",
- &struct {
- B int "a"
- }{1},
- }, {
- "a: y",
- &struct{ A bool }{true},
- },
-
- // Some cross type conversions
- {
- "v: 42",
- map[string]uint{"v": 42},
- }, {
- "v: -42",
- map[string]uint{},
- }, {
- "v: 4294967296",
- map[string]uint64{"v": 4294967296},
- }, {
- "v: -4294967296",
- map[string]uint64{},
- },
-
- // Overflow cases.
- {
- "v: 4294967297",
- map[string]int32{},
- }, {
- "v: 128",
- map[string]int8{},
- },
-
- // Quoted values.
- {
- "'1': '\"2\"'",
- map[interface{}]interface{}{"1": "\"2\""},
- }, {
- "v:\n- A\n- 'B\n\n C'\n",
- map[string][]string{"v": []string{"A", "B\nC"}},
- },
-
- // Explicit tags.
- {
- "v: !!float '1.1'",
- map[string]interface{}{"v": 1.1},
- }, {
- "v: !!null ''",
- map[string]interface{}{"v": nil},
- }, {
- "%TAG !y! tag:yaml.org,2002:\n---\nv: !y!int '1'",
- map[string]interface{}{"v": 1},
- },
-
- // Anchors and aliases.
- {
- "a: &x 1\nb: &y 2\nc: *x\nd: *y\n",
- &struct{ A, B, C, D int }{1, 2, 1, 2},
- }, {
- "a: &a {c: 1}\nb: *a",
- &struct {
- A, B struct {
- C int
- }
- }{struct{ C int }{1}, struct{ C int }{1}},
- }, {
- "a: &a [1, 2]\nb: *a",
- &struct{ B []int }{[]int{1, 2}},
- },
-
- // Bug #1133337
- {
- "foo: ''",
- map[string]*string{"foo": new(string)},
- }, {
- "foo: null",
- map[string]string{},
- },
-
- // Ignored field
- {
- "a: 1\nb: 2\n",
- &struct {
- A int
- B int "-"
- }{1, 0},
- },
-
- // Bug #1191981
- {
- "" +
- "%YAML 1.1\n" +
- "--- !!str\n" +
- `"Generic line break (no glyph)\n\` + "\n" +
- ` Generic line break (glyphed)\n\` + "\n" +
- ` Line separator\u2028\` + "\n" +
- ` Paragraph separator\u2029"` + "\n",
- "" +
- "Generic line break (no glyph)\n" +
- "Generic line break (glyphed)\n" +
- "Line separator\u2028Paragraph separator\u2029",
- },
-
- // Struct inlining
- {
- "a: 1\nb: 2\nc: 3\n",
- &struct {
- A int
- C inlineB `yaml:",inline"`
- }{1, inlineB{2, inlineC{3}}},
- },
-
- // bug 1243827
- {
- "a: -b_c",
- map[string]interface{}{"a": "-b_c"},
- },
- {
- "a: +b_c",
- map[string]interface{}{"a": "+b_c"},
- },
- {
- "a: 50cent_of_dollar",
- map[string]interface{}{"a": "50cent_of_dollar"},
- },
-}
-
-type inlineB struct {
- B int
- inlineC `yaml:",inline"`
-}
-
-type inlineC struct {
- C int
-}
-
-func (s *S) TestUnmarshal(c *C) {
- for i, item := range unmarshalTests {
- t := reflect.ValueOf(item.value).Type()
- var value interface{}
- switch t.Kind() {
- case reflect.Map:
- value = reflect.MakeMap(t).Interface()
- case reflect.String:
- t := reflect.ValueOf(item.value).Type()
- v := reflect.New(t)
- value = v.Interface()
- default:
- pt := reflect.ValueOf(item.value).Type()
- pv := reflect.New(pt.Elem())
- value = pv.Interface()
- }
- err := yaml.Unmarshal([]byte(item.data), value)
- c.Assert(err, IsNil, Commentf("Item #%d", i))
- if t.Kind() == reflect.String {
- c.Assert(*value.(*string), Equals, item.value, Commentf("Item #%d", i))
- } else {
- c.Assert(value, DeepEquals, item.value, Commentf("Item #%d", i))
- }
- }
-}
-
-func (s *S) TestUnmarshalNaN(c *C) {
- value := map[string]interface{}{}
- err := yaml.Unmarshal([]byte("notanum: .NaN"), &value)
- c.Assert(err, IsNil)
- c.Assert(math.IsNaN(value["notanum"].(float64)), Equals, true)
-}
-
-var unmarshalErrorTests = []struct {
- data, error string
-}{
- {"v: !!float 'error'", "YAML error: Can't decode !!str 'error' as a !!float"},
- {"v: [A,", "YAML error: line 1: did not find expected node content"},
- {"v:\n- [A,", "YAML error: line 2: did not find expected node content"},
- {"a: *b\n", "YAML error: Unknown anchor 'b' referenced"},
- {"a: &a\n b: *a\n", "YAML error: Anchor 'a' value contains itself"},
- {"value: -", "YAML error: block sequence entries are not allowed in this context"},
-}
-
-func (s *S) TestUnmarshalErrors(c *C) {
- for _, item := range unmarshalErrorTests {
- var value interface{}
- err := yaml.Unmarshal([]byte(item.data), &value)
- c.Assert(err, ErrorMatches, item.error, Commentf("Partial unmarshal: %#v", value))
- }
-}
-
-var setterTests = []struct {
- data, tag string
- value interface{}
-}{
- {"_: {hi: there}", "!!map", map[interface{}]interface{}{"hi": "there"}},
- {"_: [1,A]", "!!seq", []interface{}{1, "A"}},
- {"_: 10", "!!int", 10},
- {"_: null", "!!null", nil},
- {"_: !!foo 'BAR!'", "!!foo", "BAR!"},
-}
-
-var setterResult = map[int]bool{}
-
-type typeWithSetter struct {
- tag string
- value interface{}
-}
-
-func (o *typeWithSetter) SetYAML(tag string, value interface{}) (ok bool) {
- o.tag = tag
- o.value = value
- if i, ok := value.(int); ok {
- if result, ok := setterResult[i]; ok {
- return result
- }
- }
- return true
-}
-
-type typeWithSetterField struct {
- Field *typeWithSetter "_"
-}
-
-func (s *S) TestUnmarshalWithSetter(c *C) {
- for _, item := range setterTests {
- obj := &typeWithSetterField{}
- err := yaml.Unmarshal([]byte(item.data), obj)
- c.Assert(err, IsNil)
- c.Assert(obj.Field, NotNil,
- Commentf("Pointer not initialized (%#v)", item.value))
- c.Assert(obj.Field.tag, Equals, item.tag)
- c.Assert(obj.Field.value, DeepEquals, item.value)
- }
-}
-
-func (s *S) TestUnmarshalWholeDocumentWithSetter(c *C) {
- obj := &typeWithSetter{}
- err := yaml.Unmarshal([]byte(setterTests[0].data), obj)
- c.Assert(err, IsNil)
- c.Assert(obj.tag, Equals, setterTests[0].tag)
- value, ok := obj.value.(map[interface{}]interface{})
- c.Assert(ok, Equals, true)
- c.Assert(value["_"], DeepEquals, setterTests[0].value)
-}
-
-func (s *S) TestUnmarshalWithFalseSetterIgnoresValue(c *C) {
- setterResult[2] = false
- setterResult[4] = false
- defer func() {
- delete(setterResult, 2)
- delete(setterResult, 4)
- }()
-
- m := map[string]*typeWithSetter{}
- data := "{abc: 1, def: 2, ghi: 3, jkl: 4}"
- err := yaml.Unmarshal([]byte(data), m)
- c.Assert(err, IsNil)
- c.Assert(m["abc"], NotNil)
- c.Assert(m["def"], IsNil)
- c.Assert(m["ghi"], NotNil)
- c.Assert(m["jkl"], IsNil)
-
- c.Assert(m["abc"].value, Equals, 1)
- c.Assert(m["ghi"].value, Equals, 3)
-}
-
-//var data []byte
-//func init() {
-// var err error
-// data, err = ioutil.ReadFile("/tmp/file.yaml")
-// if err != nil {
-// panic(err)
-// }
-//}
-//
-//func (s *S) BenchmarkUnmarshal(c *C) {
-// var err error
-// for i := 0; i < c.N; i++ {
-// var v map[string]interface{}
-// err = yaml.Unmarshal(data, &v)
-// }
-// if err != nil {
-// panic(err)
-// }
-//}
-//
-//func (s *S) BenchmarkMarshal(c *C) {
-// var v map[string]interface{}
-// yaml.Unmarshal(data, &v)
-// c.ResetTimer()
-// for i := 0; i < c.N; i++ {
-// yaml.Marshal(&v)
-// }
-//}
diff --git a/emitterc.go b/emitterc.go
deleted file mode 100644
index 542ffd2..0000000
--- a/emitterc.go
+++ /dev/null
@@ -1,1682 +0,0 @@
-package yaml
-
-import (
- "bytes"
-)
-
-// Flush the buffer if needed.
-func flush(emitter *yaml_emitter_t) bool {
- if emitter.buffer_pos+5 >= len(emitter.buffer) {
- return yaml_emitter_flush(emitter)
- }
- return true
-}
-
-// Put a character to the output buffer.
-func put(emitter *yaml_emitter_t, value byte) bool {
- if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
- return false
- }
- emitter.buffer[emitter.buffer_pos] = value
- emitter.buffer_pos++
- emitter.column++
- return true
-}
-
-// Put a line break to the output buffer.
-func put_break(emitter *yaml_emitter_t) bool {
- if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
- return false
- }
- switch emitter.line_break {
- case yaml_CR_BREAK:
- emitter.buffer[emitter.buffer_pos] = '\r'
- emitter.buffer_pos += 1
- case yaml_LN_BREAK:
- emitter.buffer[emitter.buffer_pos] = '\n'
- emitter.buffer_pos += 1
- case yaml_CRLN_BREAK:
- emitter.buffer[emitter.buffer_pos+0] = '\r'
- emitter.buffer[emitter.buffer_pos+1] = '\n'
- emitter.buffer_pos += 2
- default:
- panic("unknown line break setting")
- }
- emitter.column = 0
- emitter.line++
- return true
-}
-
-// Copy a character from a string into buffer.
-func write(emitter *yaml_emitter_t, s []byte, i *int) bool {
- if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
- return false
- }
- p := emitter.buffer_pos
- w := width(s[*i])
- switch w {
- case 4:
- emitter.buffer[p+3] = s[*i+3]
- fallthrough
- case 3:
- emitter.buffer[p+2] = s[*i+2]
- fallthrough
- case 2:
- emitter.buffer[p+1] = s[*i+1]
- fallthrough
- case 1:
- emitter.buffer[p+0] = s[*i+0]
- default:
- panic("unknown character width")
- }
- emitter.column++
- emitter.buffer_pos += w
- *i += w
- return true
-}
-
-// Write a whole string into buffer.
-func write_all(emitter *yaml_emitter_t, s []byte) bool {
- for i := 0; i < len(s); {
- if !write(emitter, s, &i) {
- return false
- }
- }
- return true
-}
-
-// Copy a line break character from a string into buffer.
-func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool {
- if s[*i] == '\n' {
- if !put_break(emitter) {
- return false
- }
- *i++
- } else {
- if !write(emitter, s, i) {
- return false
- }
- emitter.column = 0
- emitter.line++
- }
- return true
-}
-
-// Set an emitter error and return false.
-func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool {
- emitter.error = yaml_EMITTER_ERROR
- emitter.problem = problem
- return false
-}
-
-// Emit an event.
-func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- emitter.events = append(emitter.events, *event)
- for !yaml_emitter_need_more_events(emitter) {
- event := &emitter.events[emitter.events_head]
- if !yaml_emitter_analyze_event(emitter, event) {
- return false
- }
- if !yaml_emitter_state_machine(emitter, event) {
- return false
- }
- yaml_event_delete(event)
- emitter.events_head++
- }
- return true
-}
-
-// Check if we need to accumulate more events before emitting.
-//
-// We accumulate extra
-// - 1 event for DOCUMENT-START
-// - 2 events for SEQUENCE-START
-// - 3 events for MAPPING-START
-//
-func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool {
- if emitter.events_head == len(emitter.events) {
- return true
- }
- var accumulate int
- switch emitter.events[emitter.events_head].typ {
- case yaml_DOCUMENT_START_EVENT:
- accumulate = 1
- break
- case yaml_SEQUENCE_START_EVENT:
- accumulate = 2
- break
- case yaml_MAPPING_START_EVENT:
- accumulate = 3
- break
- default:
- return false
- }
- if len(emitter.events)-emitter.events_head > accumulate {
- return false
- }
- var level int
- for i := emitter.events_head; i < len(emitter.events); i++ {
- switch emitter.events[i].typ {
- case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT:
- level++
- case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT:
- level--
- }
- if level == 0 {
- return false
- }
- }
- return true
-}
-
-// Append a directive to the directives stack.
-func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool {
- for i := 0; i < len(emitter.tag_directives); i++ {
- if bytes.Equal(value.handle, emitter.tag_directives[i].handle) {
- if allow_duplicates {
- return true
- }
- return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive")
- }
- }
-
- // [Go] Do we actually need to copy this given garbage collection
- // and the lack of deallocating destructors?
- tag_copy := yaml_tag_directive_t{
- handle: make([]byte, len(value.handle)),
- prefix: make([]byte, len(value.prefix)),
- }
- copy(tag_copy.handle, value.handle)
- copy(tag_copy.prefix, value.prefix)
- emitter.tag_directives = append(emitter.tag_directives, tag_copy)
- return true
-}
-
-// Increase the indentation level.
-func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool {
- emitter.indents = append(emitter.indents, emitter.indent)
- if emitter.indent < 0 {
- if flow {
- emitter.indent = emitter.best_indent
- } else {
- emitter.indent = 0
- }
- } else if !indentless {
- emitter.indent += emitter.best_indent
- }
- return true
-}
-
-// State dispatcher.
-func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- switch emitter.state {
- default:
- case yaml_EMIT_STREAM_START_STATE:
- return yaml_emitter_emit_stream_start(emitter, event)
-
- case yaml_EMIT_FIRST_DOCUMENT_START_STATE:
- return yaml_emitter_emit_document_start(emitter, event, true)
-
- case yaml_EMIT_DOCUMENT_START_STATE:
- return yaml_emitter_emit_document_start(emitter, event, false)
-
- case yaml_EMIT_DOCUMENT_CONTENT_STATE:
- return yaml_emitter_emit_document_content(emitter, event)
-
- case yaml_EMIT_DOCUMENT_END_STATE:
- return yaml_emitter_emit_document_end(emitter, event)
-
- case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
- return yaml_emitter_emit_flow_sequence_item(emitter, event, true)
-
- case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE:
- return yaml_emitter_emit_flow_sequence_item(emitter, event, false)
-
- case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
- return yaml_emitter_emit_flow_mapping_key(emitter, event, true)
-
- case yaml_EMIT_FLOW_MAPPING_KEY_STATE:
- return yaml_emitter_emit_flow_mapping_key(emitter, event, false)
-
- case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
- return yaml_emitter_emit_flow_mapping_value(emitter, event, true)
-
- case yaml_EMIT_FLOW_MAPPING_VALUE_STATE:
- return yaml_emitter_emit_flow_mapping_value(emitter, event, false)
-
- case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
- return yaml_emitter_emit_block_sequence_item(emitter, event, true)
-
- case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
- return yaml_emitter_emit_block_sequence_item(emitter, event, false)
-
- case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
- return yaml_emitter_emit_block_mapping_key(emitter, event, true)
-
- case yaml_EMIT_BLOCK_MAPPING_KEY_STATE:
- return yaml_emitter_emit_block_mapping_key(emitter, event, false)
-
- case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
- return yaml_emitter_emit_block_mapping_value(emitter, event, true)
-
- case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE:
- return yaml_emitter_emit_block_mapping_value(emitter, event, false)
-
- case yaml_EMIT_END_STATE:
- return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END")
- }
- panic("invalid emitter state")
-}
-
-// Expect STREAM-START.
-func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if event.typ != yaml_STREAM_START_EVENT {
- return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START")
- }
- if emitter.encoding == yaml_ANY_ENCODING {
- emitter.encoding = event.encoding
- if emitter.encoding == yaml_ANY_ENCODING {
- emitter.encoding = yaml_UTF8_ENCODING
- }
- }
- if emitter.best_indent < 2 || emitter.best_indent > 9 {
- emitter.best_indent = 2
- }
- if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 {
- emitter.best_width = 80
- }
- if emitter.best_width < 0 {
- emitter.best_width = 1<<31 - 1
- }
- if emitter.line_break == yaml_ANY_BREAK {
- emitter.line_break = yaml_LN_BREAK
- }
-
- emitter.indent = -1
- emitter.line = 0
- emitter.column = 0
- emitter.whitespace = true
- emitter.indention = true
-
- if emitter.encoding != yaml_UTF8_ENCODING {
- if !yaml_emitter_write_bom(emitter) {
- return false
- }
- }
- emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE
- return true
-}
-
-// Expect DOCUMENT-START or STREAM-END.
-func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-
- if event.typ == yaml_DOCUMENT_START_EVENT {
-
- if event.version_directive != nil {
- if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) {
- return false
- }
- }
-
- for i := 0; i < len(event.tag_directives); i++ {
- tag_directive := &event.tag_directives[i]
- if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) {
- return false
- }
- if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) {
- return false
- }
- }
-
- for i := 0; i < len(default_tag_directives); i++ {
- tag_directive := &default_tag_directives[i]
- if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) {
- return false
- }
- }
-
- implicit := event.implicit
- if !first || emitter.canonical {
- implicit = false
- }
-
- if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) {
- if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
-
- if event.version_directive != nil {
- implicit = false
- if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) {
- return false
- }
- if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
-
- if len(event.tag_directives) > 0 {
- implicit = false
- for i := 0; i < len(event.tag_directives); i++ {
- tag_directive := &event.tag_directives[i]
- if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) {
- return false
- }
- if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) {
- return false
- }
- if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- }
-
- if yaml_emitter_check_empty_document(emitter) {
- implicit = false
- }
- if !implicit {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) {
- return false
- }
- if emitter.canonical {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- }
-
- emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE
- return true
- }
-
- if event.typ == yaml_STREAM_END_EVENT {
- if emitter.open_ended {
- if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !yaml_emitter_flush(emitter) {
- return false
- }
- emitter.state = yaml_EMIT_END_STATE
- return true
- }
-
- return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END")
-}
-
-// Expect the root node.
-func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE)
- return yaml_emitter_emit_node(emitter, event, true, false, false, false)
-}
-
-// Expect DOCUMENT-END.
-func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if event.typ != yaml_DOCUMENT_END_EVENT {
- return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END")
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if !event.implicit {
- // [Go] Allocate the slice elsewhere.
- if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !yaml_emitter_flush(emitter) {
- return false
- }
- emitter.state = yaml_EMIT_DOCUMENT_START_STATE
- emitter.tag_directives = emitter.tag_directives[:0]
- return true
-}
-
-// Expect a flow item node.
-func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
- if first {
- if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) {
- return false
- }
- if !yaml_emitter_increase_indent(emitter, true, false) {
- return false
- }
- emitter.flow_level++
- }
-
- if event.typ == yaml_SEQUENCE_END_EVENT {
- emitter.flow_level--
- emitter.indent = emitter.indents[len(emitter.indents)-1]
- emitter.indents = emitter.indents[:len(emitter.indents)-1]
- if emitter.canonical && !first {
- if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) {
- return false
- }
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
-
- return true
- }
-
- if !first {
- if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
- return false
- }
- }
-
- if emitter.canonical || emitter.column > emitter.best_width {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE)
- return yaml_emitter_emit_node(emitter, event, false, true, false, false)
-}
-
-// Expect a flow key node.
-func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
- if first {
- if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) {
- return false
- }
- if !yaml_emitter_increase_indent(emitter, true, false) {
- return false
- }
- emitter.flow_level++
- }
-
- if event.typ == yaml_MAPPING_END_EVENT {
- emitter.flow_level--
- emitter.indent = emitter.indents[len(emitter.indents)-1]
- emitter.indents = emitter.indents[:len(emitter.indents)-1]
- if emitter.canonical && !first {
- if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
- return false
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) {
- return false
- }
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
- return true
- }
-
- if !first {
- if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
- return false
- }
- }
- if emitter.canonical || emitter.column > emitter.best_width {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
-
- if !emitter.canonical && yaml_emitter_check_simple_key(emitter) {
- emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, true)
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) {
- return false
- }
- emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a flow value node.
-func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
- if simple {
- if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
- return false
- }
- } else {
- if emitter.canonical || emitter.column > emitter.best_width {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) {
- return false
- }
- }
- emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a block item node.
-func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
- if first {
- if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) {
- return false
- }
- }
- if event.typ == yaml_SEQUENCE_END_EVENT {
- emitter.indent = emitter.indents[len(emitter.indents)-1]
- emitter.indents = emitter.indents[:len(emitter.indents)-1]
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
- return true
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) {
- return false
- }
- emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE)
- return yaml_emitter_emit_node(emitter, event, false, true, false, false)
-}
-
-// Expect a block key node.
-func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
- if first {
- if !yaml_emitter_increase_indent(emitter, false, false) {
- return false
- }
- }
- if event.typ == yaml_MAPPING_END_EVENT {
- emitter.indent = emitter.indents[len(emitter.indents)-1]
- emitter.indents = emitter.indents[:len(emitter.indents)-1]
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
- return true
- }
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if yaml_emitter_check_simple_key(emitter) {
- emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, true)
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) {
- return false
- }
- emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a block value node.
-func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
- if simple {
- if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
- return false
- }
- } else {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) {
- return false
- }
- }
- emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE)
- return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a node.
-func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t,
- root bool, sequence bool, mapping bool, simple_key bool) bool {
-
- emitter.root_context = root
- emitter.sequence_context = sequence
- emitter.mapping_context = mapping
- emitter.simple_key_context = simple_key
-
- switch event.typ {
- case yaml_ALIAS_EVENT:
- return yaml_emitter_emit_alias(emitter, event)
- case yaml_SCALAR_EVENT:
- return yaml_emitter_emit_scalar(emitter, event)
- case yaml_SEQUENCE_START_EVENT:
- return yaml_emitter_emit_sequence_start(emitter, event)
- case yaml_MAPPING_START_EVENT:
- return yaml_emitter_emit_mapping_start(emitter, event)
- default:
- return yaml_emitter_set_emitter_error(emitter,
- "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS")
- }
- return false
-}
-
-// Expect ALIAS.
-func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if !yaml_emitter_process_anchor(emitter) {
- return false
- }
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
- return true
-}
-
-// Expect SCALAR.
-func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if !yaml_emitter_select_scalar_style(emitter, event) {
- return false
- }
- if !yaml_emitter_process_anchor(emitter) {
- return false
- }
- if !yaml_emitter_process_tag(emitter) {
- return false
- }
- if !yaml_emitter_increase_indent(emitter, true, false) {
- return false
- }
- if !yaml_emitter_process_scalar(emitter) {
- return false
- }
- emitter.indent = emitter.indents[len(emitter.indents)-1]
- emitter.indents = emitter.indents[:len(emitter.indents)-1]
- emitter.state = emitter.states[len(emitter.states)-1]
- emitter.states = emitter.states[:len(emitter.states)-1]
- return true
-}
-
-// Expect SEQUENCE-START.
-func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if !yaml_emitter_process_anchor(emitter) {
- return false
- }
- if !yaml_emitter_process_tag(emitter) {
- return false
- }
- if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE ||
- yaml_emitter_check_empty_sequence(emitter) {
- emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
- } else {
- emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
- }
- return true
-}
-
-// Expect MAPPING-START.
-func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
- if !yaml_emitter_process_anchor(emitter) {
- return false
- }
- if !yaml_emitter_process_tag(emitter) {
- return false
- }
- if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE ||
- yaml_emitter_check_empty_mapping(emitter) {
- emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
- } else {
- emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
- }
- return true
-}
-
-// Check if the document content is an empty scalar.
-func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool {
- return false // [Go] Huh?
-}
-
-// Check if the next events represent an empty sequence.
-func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool {
- if len(emitter.events)-emitter.events_head < 2 {
- return false
- }
- return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT &&
- emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT
-}
-
-// Check if the next events represent an empty mapping.
-func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool {
- if len(emitter.events)-emitter.events_head < 2 {
- return false
- }
- return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT &&
- emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT
-}
-
-// Check if the next node can be expressed as a simple key.
-func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool {
- length := 0
- switch emitter.events[emitter.events_head].typ {
- case yaml_ALIAS_EVENT:
- length += len(emitter.anchor_data.anchor)
- case yaml_SCALAR_EVENT:
- if emitter.scalar_data.multiline {
- return false
- }
- length += len(emitter.anchor_data.anchor) +
- len(emitter.tag_data.handle) +
- len(emitter.tag_data.suffix) +
- len(emitter.scalar_data.value)
- case yaml_SEQUENCE_START_EVENT:
- if !yaml_emitter_check_empty_sequence(emitter) {
- return false
- }
- length += len(emitter.anchor_data.anchor) +
- len(emitter.tag_data.handle) +
- len(emitter.tag_data.suffix)
- case yaml_MAPPING_START_EVENT:
- if !yaml_emitter_check_empty_mapping(emitter) {
- return false
- }
- length += len(emitter.anchor_data.anchor) +
- len(emitter.tag_data.handle) +
- len(emitter.tag_data.suffix)
- default:
- return false
- }
- return length <= 128
-}
-
-// Determine an acceptable scalar style.
-func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-
- no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0
- if no_tag && !event.implicit && !event.quoted_implicit {
- return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified")
- }
-
- style := event.scalar_style()
- if style == yaml_ANY_SCALAR_STYLE {
- style = yaml_PLAIN_SCALAR_STYLE
- }
- if emitter.canonical {
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
- if emitter.simple_key_context && emitter.scalar_data.multiline {
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
-
- if style == yaml_PLAIN_SCALAR_STYLE {
- if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed ||
- emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed {
- style = yaml_SINGLE_QUOTED_SCALAR_STYLE
- }
- if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) {
- style = yaml_SINGLE_QUOTED_SCALAR_STYLE
- }
- if no_tag && !event.implicit {
- style = yaml_SINGLE_QUOTED_SCALAR_STYLE
- }
- }
- if style == yaml_SINGLE_QUOTED_SCALAR_STYLE {
- if !emitter.scalar_data.single_quoted_allowed {
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
- }
- if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE {
- if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context {
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
- }
-
- if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE {
- emitter.tag_data.handle = []byte{'!'}
- }
- emitter.scalar_data.style = style
- return true
-}
-
-// Write an achor.
-func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool {
- if emitter.anchor_data.anchor == nil {
- return true
- }
- c := []byte{'&'}
- if emitter.anchor_data.alias {
- c[0] = '*'
- }
- if !yaml_emitter_write_indicator(emitter, c, true, false, false) {
- return false
- }
- return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor)
-}
-
-// Write a tag.
-func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool {
- if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 {
- return true
- }
- if len(emitter.tag_data.handle) > 0 {
- if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) {
- return false
- }
- if len(emitter.tag_data.suffix) > 0 {
- if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
- return false
- }
- }
- } else {
- // [Go] Allocate these slices elsewhere.
- if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) {
- return false
- }
- if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
- return false
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) {
- return false
- }
- }
- return true
-}
-
-// Write a scalar.
-func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool {
- switch emitter.scalar_data.style {
- case yaml_PLAIN_SCALAR_STYLE:
- return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
- case yaml_SINGLE_QUOTED_SCALAR_STYLE:
- return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
- case yaml_DOUBLE_QUOTED_SCALAR_STYLE:
- return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
- case yaml_LITERAL_SCALAR_STYLE:
- return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value)
-
- case yaml_FOLDED_SCALAR_STYLE:
- return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value)
- }
- panic("unknown scalar style")
-}
-
-// Check if a %YAML directive is valid.
-func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool {
- if version_directive.major != 1 || version_directive.minor != 1 {
- return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive")
- }
- return true
-}
-
-// Check if a %TAG directive is valid.
-func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool {
- handle := tag_directive.handle
- prefix := tag_directive.prefix
- if len(handle) == 0 {
- return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty")
- }
- if handle[0] != '!' {
- return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'")
- }
- if handle[len(handle)-1] != '!' {
- return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'")
- }
- for i := 1; i < len(handle)-1; i += width(handle[i]) {
- if !is_alpha(handle, i) {
- return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only")
- }
- }
- if len(prefix) == 0 {
- return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty")
- }
- return true
-}
-
-// Check if an anchor is valid.
-func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool {
- if len(anchor) == 0 {
- problem := "anchor value must not be empty"
- if alias {
- problem = "alias value must not be empty"
- }
- return yaml_emitter_set_emitter_error(emitter, problem)
- }
- for i := 0; i < len(anchor); i += width(anchor[i]) {
- if !is_alpha(anchor, i) {
- problem := "anchor value must contain alphanumerical characters only"
- if alias {
- problem = "alias value must contain alphanumerical characters only"
- }
- return yaml_emitter_set_emitter_error(emitter, problem)
- }
- }
- emitter.anchor_data.anchor = anchor
- emitter.anchor_data.alias = alias
- return true
-}
-
-// Check if a tag is valid.
-func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
- if len(tag) == 0 {
- return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty")
- }
- for i := 0; i < len(emitter.tag_directives); i++ {
- tag_directive := &emitter.tag_directives[i]
- if bytes.HasPrefix(tag, tag_directive.prefix) {
- emitter.tag_data.handle = tag_directive.handle
- emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
- }
- return true
- }
- emitter.tag_data.suffix = tag
- return true
-}
-
-// Check if a scalar is valid.
-func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool {
- var (
- block_indicators = false
- flow_indicators = false
- line_breaks = false
- special_characters = false
-
- leading_space = false
- leading_break = false
- trailing_space = false
- trailing_break = false
- break_space = false
- space_break = false
-
- preceeded_by_whitespace = false
- followed_by_whitespace = false
- previous_space = false
- previous_break = false
- )
-
- emitter.scalar_data.value = value
-
- if len(value) == 0 {
- emitter.scalar_data.multiline = false
- emitter.scalar_data.flow_plain_allowed = false
- emitter.scalar_data.block_plain_allowed = true
- emitter.scalar_data.single_quoted_allowed = true
- emitter.scalar_data.block_allowed = false
- return true
- }
-
- if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) {
- block_indicators = true
- flow_indicators = true
- }
-
- preceeded_by_whitespace = true
- for i, w := 0, 0; i < len(value); i += w {
- w = width(value[0])
- followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w)
-
- if i == 0 {
- switch value[i] {
- case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`':
- flow_indicators = true
- block_indicators = true
- case '?', ':':
- flow_indicators = true
- if followed_by_whitespace {
- block_indicators = true
- }
- case '-':
- if followed_by_whitespace {
- flow_indicators = true
- block_indicators = true
- }
- }
- } else {
- switch value[i] {
- case ',', '?', '[', ']', '{', '}':
- flow_indicators = true
- case ':':
- flow_indicators = true
- if followed_by_whitespace {
- block_indicators = true
- }
- case '#':
- if preceeded_by_whitespace {
- flow_indicators = true
- block_indicators = true
- }
- }
- }
-
- if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode {
- special_characters = true
- }
- if is_space(value, i) {
- if i == 0 {
- leading_space = true
- }
- if i+width(value[i]) == len(value) {
- trailing_space = true
- }
- if previous_break {
- break_space = true
- }
- previous_space = true
- previous_break = false
- } else if is_break(value, i) {
- line_breaks = true
- if i == 0 {
- leading_break = true
- }
- if i+width(value[i]) == len(value) {
- trailing_break = true
- }
- if previous_space {
- space_break = true
- }
- previous_space = false
- previous_break = true
- } else {
- previous_space = false
- previous_break = false
- }
-
- // [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition.
- preceeded_by_whitespace = is_blankz(value, i)
- }
-
- emitter.scalar_data.multiline = line_breaks
- emitter.scalar_data.flow_plain_allowed = true
- emitter.scalar_data.block_plain_allowed = true
- emitter.scalar_data.single_quoted_allowed = true
- emitter.scalar_data.block_allowed = true
-
- if leading_space || leading_break || trailing_space || trailing_break {
- emitter.scalar_data.flow_plain_allowed = false
- emitter.scalar_data.block_plain_allowed = false
- }
- if trailing_space {
- emitter.scalar_data.block_allowed = false
- }
- if break_space {
- emitter.scalar_data.flow_plain_allowed = false
- emitter.scalar_data.block_plain_allowed = false
- emitter.scalar_data.single_quoted_allowed = false
- }
- if space_break || special_characters {
- emitter.scalar_data.flow_plain_allowed = false
- emitter.scalar_data.block_plain_allowed = false
- emitter.scalar_data.single_quoted_allowed = false
- emitter.scalar_data.block_allowed = false
- }
- if line_breaks {
- emitter.scalar_data.flow_plain_allowed = false
- emitter.scalar_data.block_plain_allowed = false
- }
- if flow_indicators {
- emitter.scalar_data.flow_plain_allowed = false
- }
- if block_indicators {
- emitter.scalar_data.block_plain_allowed = false
- }
- return true
-}
-
-// Check if the event data is valid.
-func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-
- emitter.anchor_data.anchor = nil
- emitter.tag_data.handle = nil
- emitter.tag_data.suffix = nil
- emitter.scalar_data.value = nil
-
- switch event.typ {
- case yaml_ALIAS_EVENT:
- if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) {
- return false
- }
-
- case yaml_SCALAR_EVENT:
- if len(event.anchor) > 0 {
- if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
- return false
- }
- }
- if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) {
- if !yaml_emitter_analyze_tag(emitter, event.tag) {
- return false
- }
- }
- if !yaml_emitter_analyze_scalar(emitter, event.value) {
- return false
- }
-
- case yaml_SEQUENCE_START_EVENT:
- if len(event.anchor) > 0 {
- if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
- return false
- }
- }
- if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
- if !yaml_emitter_analyze_tag(emitter, event.tag) {
- return false
- }
- }
-
- case yaml_MAPPING_START_EVENT:
- if len(event.anchor) > 0 {
- if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
- return false
- }
- }
- if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
- if !yaml_emitter_analyze_tag(emitter, event.tag) {
- return false
- }
- }
- }
- return true
-}
-
-// Write the BOM character.
-func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool {
- if !flush(emitter) {
- return false
- }
- pos := emitter.buffer_pos
- emitter.buffer[pos+0] = '\xEF'
- emitter.buffer[pos+1] = '\xBB'
- emitter.buffer[pos+2] = '\xBF'
- emitter.buffer_pos += 3
- return true
-}
-
-func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool {
- indent := emitter.indent
- if indent < 0 {
- indent = 0
- }
- if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) {
- if !put_break(emitter) {
- return false
- }
- }
- for emitter.column < indent {
- if !put(emitter, ' ') {
- return false
- }
- }
- emitter.whitespace = true
- emitter.indention = true
- return true
-}
-
-func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool {
- if need_whitespace && !emitter.whitespace {
- if !put(emitter, ' ') {
- return false
- }
- }
- if !write_all(emitter, indicator) {
- return false
- }
- emitter.whitespace = is_whitespace
- emitter.indention = (emitter.indention && is_indention)
- emitter.open_ended = false
- return true
-}
-
-func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool {
- if !write_all(emitter, value) {
- return false
- }
- emitter.whitespace = false
- emitter.indention = false
- return true
-}
-
-func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool {
- if !emitter.whitespace {
- if !put(emitter, ' ') {
- return false
- }
- }
- if !write_all(emitter, value) {
- return false
- }
- emitter.whitespace = false
- emitter.indention = false
- return true
-}
-
-func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool {
- if need_whitespace && !emitter.whitespace {
- if !put(emitter, ' ') {
- return false
- }
- }
- for i := 0; i < len(value); {
- var must_write bool
- switch value[i] {
- case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']':
- must_write = true
- default:
- must_write = is_alpha(value, i)
- }
- if must_write {
- if !write(emitter, value, &i) {
- return false
- }
- } else {
- w := width(value[i])
- for k := 0; k < w; k++ {
- octet := value[i]
- i++
-
- c := octet >> 4
- if c < 10 {
- c += '0'
- } else {
- c += 'A' - 10
- }
- if !put(emitter, c) {
- return false
- }
-
- c = octet & 0x0f
- if c < 10 {
- c += '0'
- } else {
- c += 'A' - 10
- }
- if !put(emitter, c) {
- return false
- }
- }
- }
- }
- emitter.whitespace = false
- emitter.indention = false
- return true
-}
-
-func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
- if !emitter.whitespace {
- if !put(emitter, ' ') {
- return false
- }
- }
-
- spaces := false
- breaks := false
- for i := 0; i < len(value); {
- if is_space(value, i) {
- if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- i += width(value[i])
- } else {
- if !write(emitter, value, &i) {
- return false
- }
- }
- spaces = true
- } else if is_break(value, i) {
- if !breaks && value[i] == '\n' {
- if !put_break(emitter) {
- return false
- }
- }
- if !write_break(emitter, value, &i) {
- return false
- }
- emitter.indention = true
- breaks = true
- } else {
- if breaks {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !write(emitter, value, &i) {
- return false
- }
- emitter.indention = false
- spaces = false
- breaks = false
- }
- }
-
- emitter.whitespace = false
- emitter.indention = false
- if emitter.root_context {
- emitter.open_ended = true
- }
-
- return true
-}
-
-func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
-
- if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) {
- return false
- }
-
- spaces := false
- breaks := false
- for i := 0; i < len(value); {
- if is_space(value, i) {
- if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- i += width(value[i])
- } else {
- if !write(emitter, value, &i) {
- return false
- }
- }
- spaces = true
- } else if is_break(value, i) {
- if !breaks && value[i] == '\n' {
- if !put_break(emitter) {
- return false
- }
- }
- if !write_break(emitter, value, &i) {
- return false
- }
- emitter.indention = true
- breaks = true
- } else {
- if breaks {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if value[i] == '\'' {
- if !put(emitter, '\'') {
- return false
- }
- }
- if !write(emitter, value, &i) {
- return false
- }
- emitter.indention = false
- spaces = false
- breaks = false
- }
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) {
- return false
- }
- emitter.whitespace = false
- emitter.indention = false
- return true
-}
-
-func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
- spaces := false
- if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) {
- return false
- }
-
- for i := 0; i < len(value); {
- if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) ||
- is_bom(value, i) || is_break(value, i) ||
- value[i] == '"' || value[i] == '\\' {
-
- octet := value[i]
-
- var w int
- var v rune
- switch {
- case octet&0x80 == 0x00:
- w, v = 1, rune(octet&0x7F)
- case octet&0xE0 == 0xC0:
- w, v = 2, rune(octet&0x1F)
- case octet&0xF0 == 0xE0:
- w, v = 3, rune(octet&0x0F)
- case octet&0xF8 == 0xF0:
- w, v = 4, rune(octet&0x07)
- }
- for k := 1; k < w; k++ {
- octet = value[i+k]
- v = (v << 6) + (rune(octet) & 0x3F)
- }
- i += w
-
- if !put(emitter, '\\') {
- return false
- }
-
- var ok bool
- switch v {
- case 0x00:
- ok = put(emitter, '0')
- case 0x07:
- ok = put(emitter, 'a')
- case 0x08:
- ok = put(emitter, 'b')
- case 0x09:
- ok = put(emitter, 't')
- case 0x0A:
- ok = put(emitter, 'n')
- case 0x0b:
- ok = put(emitter, 'v')
- case 0x0c:
- ok = put(emitter, 'f')
- case 0x0d:
- ok = put(emitter, 'r')
- case 0x1b:
- ok = put(emitter, 'e')
- case 0x22:
- ok = put(emitter, '"')
- case 0x5c:
- ok = put(emitter, '\\')
- case 0x85:
- ok = put(emitter, 'N')
- case 0xA0:
- ok = put(emitter, '_')
- case 0x2028:
- ok = put(emitter, 'L')
- case 0x2029:
- ok = put(emitter, 'P')
- default:
- if v <= 0xFF {
- ok = put(emitter, 'x')
- w = 2
- } else if v <= 0xFFFF {
- ok = put(emitter, 'u')
- w = 4
- } else {
- ok = put(emitter, 'U')
- w = 8
- }
- for k := (w - 1) * 4; ok && k >= 0; k -= 4 {
- digit := byte((v >> uint(k)) & 0x0F)
- if digit < 10 {
- ok = put(emitter, digit+'0')
- } else {
- ok = put(emitter, digit+'A'-10)
- }
- }
- }
- if !ok {
- return false
- }
- spaces = false
- } else if is_space(value, i) {
- if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- if is_space(value, i+1) {
- if !put(emitter, '\\') {
- return false
- }
- }
- i += width(value[i])
- } else if !write(emitter, value, &i) {
- return false
- }
- spaces = true
- } else {
- if !write(emitter, value, &i) {
- return false
- }
- spaces = false
- }
- }
- if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) {
- return false
- }
- emitter.whitespace = false
- emitter.indention = false
- return true
-}
-
-func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool {
- if is_space(value, 0) || is_break(value, 0) {
- indent_hint := []byte{'0' + byte(emitter.best_indent)}
- if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) {
- return false
- }
- }
-
- emitter.open_ended = false
-
- var chomp_hint [1]byte
- if len(value) == 0 {
- chomp_hint[0] = '-'
- } else {
- i := len(value) - 1
- for value[i]&0xC0 == 0x80 {
- i--
- }
- if !is_break(value, i) {
- chomp_hint[0] = '-'
- } else if i == 0 {
- chomp_hint[0] = '+'
- emitter.open_ended = true
- } else {
- i--
- for value[i]&0xC0 == 0x80 {
- i--
- }
- if is_break(value, i) {
- chomp_hint[0] = '+'
- emitter.open_ended = true
- }
- }
- }
- if chomp_hint[0] != 0 {
- if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) {
- return false
- }
- }
- return true
-}
-
-func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool {
- if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) {
- return false
- }
- if !yaml_emitter_write_block_scalar_hints(emitter, value) {
- return false
- }
- if !put_break(emitter) {
- return false
- }
- emitter.indention = true
- emitter.whitespace = true
- breaks := true
- for i := 0; i < len(value); {
- if is_break(value, i) {
- if !write_break(emitter, value, &i) {
- return false
- }
- emitter.indention = true
- breaks = true
- } else {
- if breaks {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- }
- if !write(emitter, value, &i) {
- return false
- }
- emitter.indention = false
- breaks = false
- }
- }
-
- return true
-}
-
-func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool {
- if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) {
- return false
- }
- if !yaml_emitter_write_block_scalar_hints(emitter, value) {
- return false
- }
-
- if !put_break(emitter) {
- return false
- }
- emitter.indention = true
- emitter.whitespace = true
-
- breaks := true
- leading_spaces := true
- for i := 0; i < len(value); {
- if is_break(value, i) {
- if !breaks && !leading_spaces && value[i] == '\n' {
- k := 0
- for is_break(value, k) {
- k += width(value[k])
- }
- if !is_blankz(value, k) {
- if !put_break(emitter) {
- return false
- }
- }
- }
- if !write_break(emitter, value, &i) {
- return false
- }
- emitter.indention = true
- breaks = true
- } else {
- if breaks {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- leading_spaces = is_blank(value, i)
- }
- if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width {
- if !yaml_emitter_write_indent(emitter) {
- return false
- }
- i += width(value[i])
- } else {
- if !write(emitter, value, &i) {
- return false
- }
- }
- emitter.indention = false
- breaks = false
- }
- }
- return true
-}
diff --git a/encode.go b/encode.go
deleted file mode 100644
index c700443..0000000
--- a/encode.go
+++ /dev/null
@@ -1,221 +0,0 @@
-package yaml
-
-import (
- "reflect"
- "sort"
- "strconv"
-)
-
-type encoder struct {
- emitter yaml_emitter_t
- event yaml_event_t
- out []byte
- flow bool
-}
-
-func newEncoder() (e *encoder) {
- e = &encoder{}
- e.must(yaml_emitter_initialize(&e.emitter))
- yaml_emitter_set_output_string(&e.emitter, &e.out)
- e.must(yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING))
- e.emit()
- e.must(yaml_document_start_event_initialize(&e.event, nil, nil, true))
- e.emit()
- return e
-}
-
-func (e *encoder) finish() {
- e.must(yaml_document_end_event_initialize(&e.event, true))
- e.emit()
- e.emitter.open_ended = false
- e.must(yaml_stream_end_event_initialize(&e.event))
- e.emit()
-}
-
-func (e *encoder) destroy() {
- yaml_emitter_delete(&e.emitter)
-}
-
-func (e *encoder) emit() {
- // This will internally delete the e.event value.
- if !yaml_emitter_emit(&e.emitter, &e.event) && e.event.typ != yaml_DOCUMENT_END_EVENT && e.event.typ != yaml_STREAM_END_EVENT {
- e.must(false)
- }
-}
-
-func (e *encoder) must(ok bool) {
- if !ok {
- msg := e.emitter.problem
- if msg == "" {
- msg = "Unknown problem generating YAML content"
- }
- panic(msg)
- }
-}
-
-func (e *encoder) marshal(tag string, in reflect.Value) {
- var value interface{}
- if getter, ok := in.Interface().(Getter); ok {
- tag, value = getter.GetYAML()
- if value == nil {
- e.nilv()
- return
- }
- in = reflect.ValueOf(value)
- }
- switch in.Kind() {
- case reflect.Interface:
- if in.IsNil() {
- e.nilv()
- } else {
- e.marshal(tag, in.Elem())
- }
- case reflect.Map:
- e.mapv(tag, in)
- case reflect.Ptr:
- if in.IsNil() {
- e.nilv()
- } else {
- e.marshal(tag, in.Elem())
- }
- case reflect.Struct:
- e.structv(tag, in)
- case reflect.Slice:
- e.slicev(tag, in)
- case reflect.String:
- e.stringv(tag, in)
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- e.intv(tag, in)
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- e.uintv(tag, in)
- case reflect.Float32, reflect.Float64:
- e.floatv(tag, in)
- case reflect.Bool:
- e.boolv(tag, in)
- default:
- panic("Can't marshal type yet: " + in.Type().String())
- }
-}
-
-func (e *encoder) mapv(tag string, in reflect.Value) {
- e.mappingv(tag, func() {
- keys := keyList(in.MapKeys())
- sort.Sort(keys)
- for _, k := range keys {
- e.marshal("", k)
- e.marshal("", in.MapIndex(k))
- }
- })
-}
-
-func (e *encoder) structv(tag string, in reflect.Value) {
- sinfo, err := getStructInfo(in.Type())
- if err != nil {
- panic(err)
- }
- e.mappingv(tag, func() {
- for _, info := range sinfo.FieldsList {
- var value reflect.Value
- if info.Inline == nil {
- value = in.Field(info.Num)
- } else {
- value = in.FieldByIndex(info.Inline)
- }
- if info.OmitEmpty && isZero(value) {
- continue
- }
- e.marshal("", reflect.ValueOf(info.Key))
- e.flow = info.Flow
- e.marshal("", value)
- }
- })
-}
-
-func (e *encoder) mappingv(tag string, f func()) {
- implicit := tag == ""
- style := yaml_BLOCK_MAPPING_STYLE
- if e.flow {
- e.flow = false
- style = yaml_FLOW_MAPPING_STYLE
- }
- e.must(yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
- e.emit()
- f()
- e.must(yaml_mapping_end_event_initialize(&e.event))
- e.emit()
-}
-
-func (e *encoder) slicev(tag string, in reflect.Value) {
- implicit := tag == ""
- style := yaml_BLOCK_SEQUENCE_STYLE
- if e.flow {
- e.flow = false
- style = yaml_FLOW_SEQUENCE_STYLE
- }
- e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
- e.emit()
- n := in.Len()
- for i := 0; i < n; i++ {
- e.marshal("", in.Index(i))
- }
- e.must(yaml_sequence_end_event_initialize(&e.event))
- e.emit()
-}
-
-func (e *encoder) stringv(tag string, in reflect.Value) {
- var style yaml_scalar_style_t
- s := in.String()
- if rtag, _ := resolve("", s); rtag != "!!str" {
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- } else {
- style = yaml_PLAIN_SCALAR_STYLE
- }
- e.emitScalar(s, "", tag, style)
-}
-
-func (e *encoder) boolv(tag string, in reflect.Value) {
- var s string
- if in.Bool() {
- s = "true"
- } else {
- s = "false"
- }
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) intv(tag string, in reflect.Value) {
- s := strconv.FormatInt(in.Int(), 10)
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) uintv(tag string, in reflect.Value) {
- s := strconv.FormatUint(in.Uint(), 10)
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) floatv(tag string, in reflect.Value) {
- // FIXME: Handle 64 bits here.
- s := strconv.FormatFloat(float64(in.Float()), 'g', -1, 32)
- switch s {
- case "+Inf":
- s = ".inf"
- case "-Inf":
- s = "-.inf"
- case "NaN":
- s = ".nan"
- }
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) nilv() {
- e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
- implicit := tag == ""
- if !implicit {
- style = yaml_PLAIN_SCALAR_STYLE
- }
- e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
- e.emit()
-}
diff --git a/encode_test.go b/encode_test.go
deleted file mode 100644
index 0ab65b9..0000000
--- a/encode_test.go
+++ /dev/null
@@ -1,379 +0,0 @@
-package yaml_test
-
-import (
- "fmt"
- . "launchpad.net/gocheck"
- "gopkg.in/yaml.v1"
- "math"
- "strconv"
- "strings"
-)
-
-var marshalIntTest = 123
-
-var marshalTests = []struct {
- value interface{}
- data string
-}{
- {
- &struct{}{},
- "{}\n",
- }, {
- map[string]string{"v": "hi"},
- "v: hi\n",
- }, {
- map[string]interface{}{"v": "hi"},
- "v: hi\n",
- }, {
- map[string]string{"v": "true"},
- "v: \"true\"\n",
- }, {
- map[string]string{"v": "false"},
- "v: \"false\"\n",
- }, {
- map[string]interface{}{"v": true},
- "v: true\n",
- }, {
- map[string]interface{}{"v": false},
- "v: false\n",
- }, {
- map[string]interface{}{"v": 10},
- "v: 10\n",
- }, {
- map[string]interface{}{"v": -10},
- "v: -10\n",
- }, {
- map[string]uint{"v": 42},
- "v: 42\n",
- }, {
- map[string]interface{}{"v": int64(4294967296)},
- "v: 4294967296\n",
- }, {
- map[string]int64{"v": int64(4294967296)},
- "v: 4294967296\n",
- }, {
- map[string]uint64{"v": 4294967296},
- "v: 4294967296\n",
- }, {
- map[string]interface{}{"v": "10"},
- "v: \"10\"\n",
- }, {
- map[string]interface{}{"v": 0.1},
- "v: 0.1\n",
- }, {
- map[string]interface{}{"v": float64(0.1)},
- "v: 0.1\n",
- }, {
- map[string]interface{}{"v": -0.1},
- "v: -0.1\n",
- }, {
- map[string]interface{}{"v": math.Inf(+1)},
- "v: .inf\n",
- }, {
- map[string]interface{}{"v": math.Inf(-1)},
- "v: -.inf\n",
- }, {
- map[string]interface{}{"v": math.NaN()},
- "v: .nan\n",
- }, {
- map[string]interface{}{"v": nil},
- "v: null\n",
- }, {
- map[string]interface{}{"v": ""},
- "v: \"\"\n",
- }, {
- map[string][]string{"v": []string{"A", "B"}},
- "v:\n- A\n- B\n",
- }, {
- map[string][]string{"v": []string{"A", "B\nC"}},
- "v:\n- A\n- 'B\n\n C'\n",
- }, {
- map[string][]interface{}{"v": []interface{}{"A", 1, map[string][]int{"B": []int{2, 3}}}},
- "v:\n- A\n- 1\n- B:\n - 2\n - 3\n",
- }, {
- map[string]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
- "a:\n b: c\n",
- }, {
- map[string]interface{}{"a": "-"},
- "a: '-'\n",
- },
-
- // Simple values.
- {
- &marshalIntTest,
- "123\n",
- },
-
- // Structures
- {
- &struct{ Hello string }{"world"},
- "hello: world\n",
- }, {
- &struct {
- A struct {
- B string
- }
- }{struct{ B string }{"c"}},
- "a:\n b: c\n",
- }, {
- &struct {
- A *struct {
- B string
- }
- }{&struct{ B string }{"c"}},
- "a:\n b: c\n",
- }, {
- &struct {
- A *struct {
- B string
- }
- }{},
- "a: null\n",
- }, {
- &struct{ A int }{1},
- "a: 1\n",
- }, {
- &struct{ A []int }{[]int{1, 2}},
- "a:\n- 1\n- 2\n",
- }, {
- &struct {
- B int "a"
- }{1},
- "a: 1\n",
- }, {
- &struct{ A bool }{true},
- "a: true\n",
- },
-
- // Conditional flag
- {
- &struct {
- A int "a,omitempty"
- B int "b,omitempty"
- }{1, 0},
- "a: 1\n",
- }, {
- &struct {
- A int "a,omitempty"
- B int "b,omitempty"
- }{0, 0},
- "{}\n",
- }, {
- &struct {
- A *struct{ X int } "a,omitempty"
- B int "b,omitempty"
- }{nil, 0},
- "{}\n",
- },
-
- // Flow flag
- {
- &struct {
- A []int "a,flow"
- }{[]int{1, 2}},
- "a: [1, 2]\n",
- }, {
- &struct {
- A map[string]string "a,flow"
- }{map[string]string{"b": "c", "d": "e"}},
- "a: {b: c, d: e}\n",
- }, {
- &struct {
- A struct {
- B, D string
- } "a,flow"
- }{struct{ B, D string }{"c", "e"}},
- "a: {b: c, d: e}\n",
- },
-
- // Unexported field
- {
- &struct {
- u int
- A int
- }{0, 1},
- "a: 1\n",
- },
-
- // Ignored field
- {
- &struct {
- A int
- B int "-"
- }{1, 2},
- "a: 1\n",
- },
-
- // Struct inlining
- {
- &struct {
- A int
- C inlineB `yaml:",inline"`
- }{1, inlineB{2, inlineC{3}}},
- "a: 1\nb: 2\nc: 3\n",
- },
-}
-
-func (s *S) TestMarshal(c *C) {
- for _, item := range marshalTests {
- data, err := yaml.Marshal(item.value)
- c.Assert(err, IsNil)
- c.Assert(string(data), Equals, item.data)
- }
-}
-
-var marshalErrorTests = []struct {
- value interface{}
- error string
-}{
- {
- &struct {
- B int
- inlineB ",inline"
- }{1, inlineB{2, inlineC{3}}},
- `Duplicated key 'b' in struct struct \{ B int; .*`,
- },
-}
-
-func (s *S) TestMarshalErrors(c *C) {
- for _, item := range marshalErrorTests {
- _, err := yaml.Marshal(item.value)
- c.Assert(err, ErrorMatches, item.error)
- }
-}
-
-var marshalTaggedIfaceTest interface{} = &struct{ A string }{"B"}
-
-var getterTests = []struct {
- data, tag string
- value interface{}
-}{
- {"_:\n hi: there\n", "", map[interface{}]interface{}{"hi": "there"}},
- {"_:\n- 1\n- A\n", "", []interface{}{1, "A"}},
- {"_: 10\n", "", 10},
- {"_: null\n", "", nil},
- {"_: !foo BAR!\n", "!foo", "BAR!"},
- {"_: !foo 1\n", "!foo", "1"},
- {"_: !foo '\"1\"'\n", "!foo", "\"1\""},
- {"_: !foo 1.1\n", "!foo", 1.1},
- {"_: !foo 1\n", "!foo", 1},
- {"_: !foo 1\n", "!foo", uint(1)},
- {"_: !foo true\n", "!foo", true},
- {"_: !foo\n- A\n- B\n", "!foo", []string{"A", "B"}},
- {"_: !foo\n A: B\n", "!foo", map[string]string{"A": "B"}},
- {"_: !foo\n a: B\n", "!foo", &marshalTaggedIfaceTest},
-}
-
-func (s *S) TestMarshalTypeCache(c *C) {
- var data []byte
- var err error
- func() {
- type T struct{ A int }
- data, err = yaml.Marshal(&T{})
- c.Assert(err, IsNil)
- }()
- func() {
- type T struct{ B int }
- data, err = yaml.Marshal(&T{})
- c.Assert(err, IsNil)
- }()
- c.Assert(string(data), Equals, "b: 0\n")
-}
-
-type typeWithGetter struct {
- tag string
- value interface{}
-}
-
-func (o typeWithGetter) GetYAML() (tag string, value interface{}) {
- return o.tag, o.value
-}
-
-type typeWithGetterField struct {
- Field typeWithGetter "_"
-}
-
-func (s *S) TestMashalWithGetter(c *C) {
- for _, item := range getterTests {
- obj := &typeWithGetterField{}
- obj.Field.tag = item.tag
- obj.Field.value = item.value
- data, err := yaml.Marshal(obj)
- c.Assert(err, IsNil)
- c.Assert(string(data), Equals, string(item.data))
- }
-}
-
-func (s *S) TestUnmarshalWholeDocumentWithGetter(c *C) {
- obj := &typeWithGetter{}
- obj.tag = ""
- obj.value = map[string]string{"hello": "world!"}
- data, err := yaml.Marshal(obj)
- c.Assert(err, IsNil)
- c.Assert(string(data), Equals, "hello: world!\n")
-}
-
-func (s *S) TestSortedOutput(c *C) {
- order := []interface{}{
- false,
- true,
- 1,
- uint(1),
- 1.0,
- 1.1,
- 1.2,
- 2,
- uint(2),
- 2.0,
- 2.1,
- "",
- ".1",
- ".2",
- ".a",
- "1",
- "2",
- "a!10",
- "a/2",
- "a/10",
- "a~10",
- "ab/1",
- "b/1",
- "b/01",
- "b/2",
- "b/02",
- "b/3",
- "b/03",
- "b1",
- "b01",
- "b3",
- "c2.10",
- "c10.2",
- "d1",
- "d12",
- "d12a",
- }
- m := make(map[interface{}]int)
- for _, k := range order {
- m[k] = 1
- }
- data, err := yaml.Marshal(m)
- c.Assert(err, IsNil)
- out := "\n" + string(data)
- last := 0
- for i, k := range order {
- repr := fmt.Sprint(k)
- if s, ok := k.(string); ok {
- if _, err = strconv.ParseFloat(repr, 32); s == "" || err == nil {
- repr = `"` + repr + `"`
- }
- }
- index := strings.Index(out, "\n"+repr+":")
- if index == -1 {
- c.Fatalf("%#v is not in the output: %#v", k, out)
- }
- if index < last {
- c.Fatalf("%#v was generated before %#v: %q", k, order[i-1], out)
- }
- last = index
- }
-}
diff --git a/error.go b/error.go
new file mode 100644
index 0000000..6be5c58
--- /dev/null
+++ b/error.go
@@ -0,0 +1,5 @@
+package error
+
+func error() {
+ `ERROR: the correct import path is gopkg.in/yaml.v1 ... `
+}
diff --git a/parserc.go b/parserc.go
deleted file mode 100644
index 0a7037a..0000000
--- a/parserc.go
+++ /dev/null
@@ -1,1096 +0,0 @@
-package yaml
-
-import (
- "bytes"
-)
-
-// The parser implements the following grammar:
-//
-// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
-// implicit_document ::= block_node DOCUMENT-END*
-// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-// block_node_or_indentless_sequence ::=
-// ALIAS
-// | properties (block_content | indentless_block_sequence)?
-// | block_content
-// | indentless_block_sequence
-// block_node ::= ALIAS
-// | properties block_content?
-// | block_content
-// flow_node ::= ALIAS
-// | properties flow_content?
-// | flow_content
-// properties ::= TAG ANCHOR? | ANCHOR TAG?
-// block_content ::= block_collection | flow_collection | SCALAR
-// flow_content ::= flow_collection | SCALAR
-// block_collection ::= block_sequence | block_mapping
-// flow_collection ::= flow_sequence | flow_mapping
-// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
-// block_mapping ::= BLOCK-MAPPING_START
-// ((KEY block_node_or_indentless_sequence?)?
-// (VALUE block_node_or_indentless_sequence?)?)*
-// BLOCK-END
-// flow_sequence ::= FLOW-SEQUENCE-START
-// (flow_sequence_entry FLOW-ENTRY)*
-// flow_sequence_entry?
-// FLOW-SEQUENCE-END
-// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// flow_mapping ::= FLOW-MAPPING-START
-// (flow_mapping_entry FLOW-ENTRY)*
-// flow_mapping_entry?
-// FLOW-MAPPING-END
-// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-
-// Peek the next token in the token queue.
-func peek_token(parser *yaml_parser_t) *yaml_token_t {
- if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
- return &parser.tokens[parser.tokens_head]
- }
- return nil
-}
-
-// Remove the next token from the queue (must be called after peek_token).
-func skip_token(parser *yaml_parser_t) {
- parser.token_available = false
- parser.tokens_parsed++
- parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
- parser.tokens_head++
-}
-
-// Get the next event.
-func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
- // Erase the event object.
- *event = yaml_event_t{}
-
- // No events after the end of the stream or error.
- if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
- return true
- }
-
- // Generate the next event.
- return yaml_parser_state_machine(parser, event)
-}
-
-// Set parser error.
-func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
- parser.error = yaml_PARSER_ERROR
- parser.problem = problem
- parser.problem_mark = problem_mark
- return false
-}
-
-func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool {
- parser.error = yaml_PARSER_ERROR
- parser.context = context
- parser.context_mark = context_mark
- parser.problem = problem
- parser.problem_mark = problem_mark
- return false
-}
-
-// State dispatcher.
-func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
- //trace("yaml_parser_state_machine", "state:", parser.state.String())
-
- switch parser.state {
- case yaml_PARSE_STREAM_START_STATE:
- return yaml_parser_parse_stream_start(parser, event)
-
- case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
- return yaml_parser_parse_document_start(parser, event, true)
-
- case yaml_PARSE_DOCUMENT_START_STATE:
- return yaml_parser_parse_document_start(parser, event, false)
-
- case yaml_PARSE_DOCUMENT_CONTENT_STATE:
- return yaml_parser_parse_document_content(parser, event)
-
- case yaml_PARSE_DOCUMENT_END_STATE:
- return yaml_parser_parse_document_end(parser, event)
-
- case yaml_PARSE_BLOCK_NODE_STATE:
- return yaml_parser_parse_node(parser, event, true, false)
-
- case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
- return yaml_parser_parse_node(parser, event, true, true)
-
- case yaml_PARSE_FLOW_NODE_STATE:
- return yaml_parser_parse_node(parser, event, false, false)
-
- case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
- return yaml_parser_parse_block_sequence_entry(parser, event, true)
-
- case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
- return yaml_parser_parse_block_sequence_entry(parser, event, false)
-
- case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
- return yaml_parser_parse_indentless_sequence_entry(parser, event)
-
- case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
- return yaml_parser_parse_block_mapping_key(parser, event, true)
-
- case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
- return yaml_parser_parse_block_mapping_key(parser, event, false)
-
- case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
- return yaml_parser_parse_block_mapping_value(parser, event)
-
- case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
- return yaml_parser_parse_flow_sequence_entry(parser, event, true)
-
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
- return yaml_parser_parse_flow_sequence_entry(parser, event, false)
-
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
- return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
-
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
- return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
-
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
- return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
-
- case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
- return yaml_parser_parse_flow_mapping_key(parser, event, true)
-
- case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
- return yaml_parser_parse_flow_mapping_key(parser, event, false)
-
- case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
- return yaml_parser_parse_flow_mapping_value(parser, event, false)
-
- case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
- return yaml_parser_parse_flow_mapping_value(parser, event, true)
-
- default:
- panic("invalid parser state")
- }
- return false
-}
-
-// Parse the production:
-// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
-// ************
-func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_STREAM_START_TOKEN {
- return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
- }
- parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
- *event = yaml_event_t{
- typ: yaml_STREAM_START_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- encoding: token.encoding,
- }
- skip_token(parser)
- return true
-}
-
-// Parse the productions:
-// implicit_document ::= block_node DOCUMENT-END*
-// *
-// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-// *************************
-func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- // Parse extra document end indicators.
- if !implicit {
- for token.typ == yaml_DOCUMENT_END_TOKEN {
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- }
- }
-
- if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
- token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
- token.typ != yaml_DOCUMENT_START_TOKEN &&
- token.typ != yaml_STREAM_END_TOKEN {
- // Parse an implicit document.
- if !yaml_parser_process_directives(parser, nil, nil) {
- return false
- }
- parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
- parser.state = yaml_PARSE_BLOCK_NODE_STATE
-
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_START_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
-
- } else if token.typ != yaml_STREAM_END_TOKEN {
- // Parse an explicit document.
- var version_directive *yaml_version_directive_t
- var tag_directives []yaml_tag_directive_t
- start_mark := token.start_mark
- if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
- return false
- }
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_DOCUMENT_START_TOKEN {
- yaml_parser_set_parser_error(parser,
- "did not find expected <document start>", token.start_mark)
- return false
- }
- parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
- parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
- end_mark := token.end_mark
-
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- version_directive: version_directive,
- tag_directives: tag_directives,
- implicit: false,
- }
- skip_token(parser)
-
- } else {
- // Parse the stream end.
- parser.state = yaml_PARSE_END_STATE
- *event = yaml_event_t{
- typ: yaml_STREAM_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
- skip_token(parser)
- }
-
- return true
-}
-
-// Parse the productions:
-// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-// ***********
-//
-func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
- token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
- token.typ == yaml_DOCUMENT_START_TOKEN ||
- token.typ == yaml_DOCUMENT_END_TOKEN ||
- token.typ == yaml_STREAM_END_TOKEN {
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- return yaml_parser_process_empty_scalar(parser, event,
- token.start_mark)
- }
- return yaml_parser_parse_node(parser, event, true, false)
-}
-
-// Parse the productions:
-// implicit_document ::= block_node DOCUMENT-END*
-// *************
-// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-//
-func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- start_mark := token.start_mark
- end_mark := token.start_mark
-
- implicit := true
- if token.typ == yaml_DOCUMENT_END_TOKEN {
- end_mark = token.end_mark
- skip_token(parser)
- implicit = false
- }
-
- parser.tag_directives = parser.tag_directives[:0]
-
- parser.state = yaml_PARSE_DOCUMENT_START_STATE
- *event = yaml_event_t{
- typ: yaml_DOCUMENT_END_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- implicit: implicit,
- }
- return true
-}
-
-// Parse the productions:
-// block_node_or_indentless_sequence ::=
-// ALIAS
-// *****
-// | properties (block_content | indentless_block_sequence)?
-// ********** *
-// | block_content | indentless_block_sequence
-// *
-// block_node ::= ALIAS
-// *****
-// | properties block_content?
-// ********** *
-// | block_content
-// *
-// flow_node ::= ALIAS
-// *****
-// | properties flow_content?
-// ********** *
-// | flow_content
-// *
-// properties ::= TAG ANCHOR? | ANCHOR TAG?
-// *************************
-// block_content ::= block_collection | flow_collection | SCALAR
-// ******
-// flow_content ::= flow_collection | SCALAR
-// ******
-func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
- //defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- if token.typ == yaml_ALIAS_TOKEN {
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- *event = yaml_event_t{
- typ: yaml_ALIAS_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- anchor: token.value,
- }
- skip_token(parser)
- return true
- }
-
- start_mark := token.start_mark
- end_mark := token.start_mark
-
- var tag_token bool
- var tag_handle, tag_suffix, anchor []byte
- var tag_mark yaml_mark_t
- if token.typ == yaml_ANCHOR_TOKEN {
- anchor = token.value
- start_mark = token.start_mark
- end_mark = token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ == yaml_TAG_TOKEN {
- tag_token = true
- tag_handle = token.value
- tag_suffix = token.suffix
- tag_mark = token.start_mark
- end_mark = token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- }
- } else if token.typ == yaml_TAG_TOKEN {
- tag_token = true
- tag_handle = token.value
- tag_suffix = token.suffix
- start_mark = token.start_mark
- tag_mark = token.start_mark
- end_mark = token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ == yaml_ANCHOR_TOKEN {
- anchor = token.value
- end_mark = token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- }
- }
-
- var tag []byte
- if tag_token {
- if len(tag_handle) == 0 {
- tag = tag_suffix
- tag_suffix = nil
- } else {
- for i := range parser.tag_directives {
- if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
- tag = append([]byte(nil), parser.tag_directives[i].prefix...)
- tag = append(tag, tag_suffix...)
- break
- }
- }
- if len(tag) == 0 {
- yaml_parser_set_parser_error_context(parser,
- "while parsing a node", start_mark,
- "found undefined tag handle", tag_mark)
- return false
- }
- }
- }
-
- implicit := len(tag) == 0
- if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
- end_mark = token.end_mark
- parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
- }
- return true
- }
- if token.typ == yaml_SCALAR_TOKEN {
- var plain_implicit, quoted_implicit bool
- end_mark = token.end_mark
- if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
- plain_implicit = true
- } else if len(tag) == 0 {
- quoted_implicit = true
- }
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
-
- *event = yaml_event_t{
- typ: yaml_SCALAR_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- value: token.value,
- implicit: plain_implicit,
- quoted_implicit: quoted_implicit,
- style: yaml_style_t(token.style),
- }
- skip_token(parser)
- return true
- }
- if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
- // [Go] Some of the events below can be merged as they differ only on style.
- end_mark = token.end_mark
- parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
- }
- return true
- }
- if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
- end_mark = token.end_mark
- parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
- *event = yaml_event_t{
- typ: yaml_MAPPING_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
- }
- return true
- }
- if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
- end_mark = token.end_mark
- parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
- }
- return true
- }
- if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
- end_mark = token.end_mark
- parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
- *event = yaml_event_t{
- typ: yaml_MAPPING_START_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
- }
- return true
- }
- if len(anchor) > 0 || len(tag) > 0 {
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
-
- *event = yaml_event_t{
- typ: yaml_SCALAR_EVENT,
- start_mark: start_mark,
- end_mark: end_mark,
- anchor: anchor,
- tag: tag,
- implicit: implicit,
- quoted_implicit: false,
- style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
- }
- return true
- }
-
- context := "while parsing a flow node"
- if block {
- context = "while parsing a block node"
- }
- yaml_parser_set_parser_error_context(parser, context, start_mark,
- "did not find expected node content", token.start_mark)
- return false
-}
-
-// Parse the productions:
-// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-// ******************** *********** * *********
-//
-func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
- if first {
- token := peek_token(parser)
- parser.marks = append(parser.marks, token.start_mark)
- skip_token(parser)
- }
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- if token.typ == yaml_BLOCK_ENTRY_TOKEN {
- mark := token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
- return yaml_parser_parse_node(parser, event, true, false)
- } else {
- parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
- return yaml_parser_process_empty_scalar(parser, event, mark)
- }
- }
- if token.typ == yaml_BLOCK_END_TOKEN {
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
-
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
-
- skip_token(parser)
- return true
- }
-
- context_mark := parser.marks[len(parser.marks)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- return yaml_parser_set_parser_error_context(parser,
- "while parsing a block collection", context_mark,
- "did not find expected '-' indicator", token.start_mark)
-}
-
-// Parse the productions:
-// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
-// *********** *
-func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- if token.typ == yaml_BLOCK_ENTRY_TOKEN {
- mark := token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
- token.typ != yaml_KEY_TOKEN &&
- token.typ != yaml_VALUE_TOKEN &&
- token.typ != yaml_BLOCK_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
- return yaml_parser_parse_node(parser, event, true, false)
- }
- parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
- return yaml_parser_process_empty_scalar(parser, event, mark)
- }
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
-
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark?
- }
- return true
-}
-
-// Parse the productions:
-// block_mapping ::= BLOCK-MAPPING_START
-// *******************
-// ((KEY block_node_or_indentless_sequence?)?
-// *** *
-// (VALUE block_node_or_indentless_sequence?)?)*
-//
-// BLOCK-END
-// *********
-//
-func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
- if first {
- token := peek_token(parser)
- parser.marks = append(parser.marks, token.start_mark)
- skip_token(parser)
- }
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- if token.typ == yaml_KEY_TOKEN {
- mark := token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_KEY_TOKEN &&
- token.typ != yaml_VALUE_TOKEN &&
- token.typ != yaml_BLOCK_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
- return yaml_parser_parse_node(parser, event, true, true)
- } else {
- parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
- return yaml_parser_process_empty_scalar(parser, event, mark)
- }
- } else if token.typ == yaml_BLOCK_END_TOKEN {
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- *event = yaml_event_t{
- typ: yaml_MAPPING_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
- skip_token(parser)
- return true
- }
-
- context_mark := parser.marks[len(parser.marks)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- return yaml_parser_set_parser_error_context(parser,
- "while parsing a block mapping", context_mark,
- "did not find expected key", token.start_mark)
-}
-
-// Parse the productions:
-// block_mapping ::= BLOCK-MAPPING_START
-//
-// ((KEY block_node_or_indentless_sequence?)?
-//
-// (VALUE block_node_or_indentless_sequence?)?)*
-// ***** *
-// BLOCK-END
-//
-//
-func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ == yaml_VALUE_TOKEN {
- mark := token.end_mark
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_KEY_TOKEN &&
- token.typ != yaml_VALUE_TOKEN &&
- token.typ != yaml_BLOCK_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE)
- return yaml_parser_parse_node(parser, event, true, true)
- }
- parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
- return yaml_parser_process_empty_scalar(parser, event, mark)
- }
- parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
- return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Parse the productions:
-// flow_sequence ::= FLOW-SEQUENCE-START
-// *******************
-// (flow_sequence_entry FLOW-ENTRY)*
-// * **********
-// flow_sequence_entry?
-// *
-// FLOW-SEQUENCE-END
-// *****************
-// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// *
-//
-func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
- if first {
- token := peek_token(parser)
- parser.marks = append(parser.marks, token.start_mark)
- skip_token(parser)
- }
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
- if !first {
- if token.typ == yaml_FLOW_ENTRY_TOKEN {
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- } else {
- context_mark := parser.marks[len(parser.marks)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- return yaml_parser_set_parser_error_context(parser,
- "while parsing a flow sequence", context_mark,
- "did not find expected ',' or ']'", token.start_mark)
- }
- }
-
- if token.typ == yaml_KEY_TOKEN {
- parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
- *event = yaml_event_t{
- typ: yaml_MAPPING_START_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- implicit: true,
- style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
- }
- skip_token(parser)
- return true
- } else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- }
- }
-
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
-
- *event = yaml_event_t{
- typ: yaml_SEQUENCE_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
-
- skip_token(parser)
- return true
-}
-
-//
-// Parse the productions:
-// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// *** *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_VALUE_TOKEN &&
- token.typ != yaml_FLOW_ENTRY_TOKEN &&
- token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- }
- mark := token.end_mark
- skip_token(parser)
- parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
- return yaml_parser_process_empty_scalar(parser, event, mark)
-}
-
-// Parse the productions:
-// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// ***** *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ == yaml_VALUE_TOKEN {
- skip_token(parser)
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- }
- }
- parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
- return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Parse the productions:
-// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
- *event = yaml_event_t{
- typ: yaml_MAPPING_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.start_mark, // [Go] Shouldn't this be end_mark?
- }
- return true
-}
-
-// Parse the productions:
-// flow_mapping ::= FLOW-MAPPING-START
-// ******************
-// (flow_mapping_entry FLOW-ENTRY)*
-// * **********
-// flow_mapping_entry?
-// ******************
-// FLOW-MAPPING-END
-// ****************
-// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// * *** *
-//
-func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
- if first {
- token := peek_token(parser)
- parser.marks = append(parser.marks, token.start_mark)
- skip_token(parser)
- }
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
- if !first {
- if token.typ == yaml_FLOW_ENTRY_TOKEN {
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- } else {
- context_mark := parser.marks[len(parser.marks)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- return yaml_parser_set_parser_error_context(parser,
- "while parsing a flow mapping", context_mark,
- "did not find expected ',' or '}'", token.start_mark)
- }
- }
-
- if token.typ == yaml_KEY_TOKEN {
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_VALUE_TOKEN &&
- token.typ != yaml_FLOW_ENTRY_TOKEN &&
- token.typ != yaml_FLOW_MAPPING_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- } else {
- parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
- return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
- }
- } else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- }
- }
-
- parser.state = parser.states[len(parser.states)-1]
- parser.states = parser.states[:len(parser.states)-1]
- parser.marks = parser.marks[:len(parser.marks)-1]
- *event = yaml_event_t{
- typ: yaml_MAPPING_END_EVENT,
- start_mark: token.start_mark,
- end_mark: token.end_mark,
- }
- skip_token(parser)
- return true
-}
-
-// Parse the productions:
-// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// * ***** *
-//
-func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
- token := peek_token(parser)
- if token == nil {
- return false
- }
- if empty {
- parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
- return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
- }
- if token.typ == yaml_VALUE_TOKEN {
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
- parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
- return yaml_parser_parse_node(parser, event, false, false)
- }
- }
- parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
- return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Generate an empty scalar event.
-func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
- *event = yaml_event_t{
- typ: yaml_SCALAR_EVENT,
- start_mark: mark,
- end_mark: mark,
- value: nil, // Empty
- implicit: true,
- style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
- }
- return true
-}
-
-var default_tag_directives = []yaml_tag_directive_t{
- {[]byte("!"), []byte("!")},
- {[]byte("!!"), []byte("tag:yaml.org,2002:")},
-}
-
-// Parse directives.
-func yaml_parser_process_directives(parser *yaml_parser_t,
- version_directive_ref **yaml_version_directive_t,
- tag_directives_ref *[]yaml_tag_directive_t) bool {
-
- var version_directive *yaml_version_directive_t
- var tag_directives []yaml_tag_directive_t
-
- token := peek_token(parser)
- if token == nil {
- return false
- }
-
- for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
- if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
- if version_directive != nil {
- yaml_parser_set_parser_error(parser,
- "found duplicate %YAML directive", token.start_mark)
- return false
- }
- if token.major != 1 || token.minor != 1 {
- yaml_parser_set_parser_error(parser,
- "found incompatible YAML document", token.start_mark)
- return false
- }
- version_directive = &yaml_version_directive_t{
- major: token.major,
- minor: token.minor,
- }
- } else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
- value := yaml_tag_directive_t{
- handle: token.value,
- prefix: token.prefix,
- }
- if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
- return false
- }
- tag_directives = append(tag_directives, value)
- }
-
- skip_token(parser)
- token = peek_token(parser)
- if token == nil {
- return false
- }
- }
-
- for i := range default_tag_directives {
- if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
- return false
- }
- }
-
- if version_directive_ref != nil {
- *version_directive_ref = version_directive
- }
- if tag_directives_ref != nil {
- *tag_directives_ref = tag_directives
- }
- return true
-}
-
-// Append a tag directive to the directives stack.
-func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
- for i := range parser.tag_directives {
- if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
- if allow_duplicates {
- return true
- }
- return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
- }
- }
-
- // [Go] I suspect the copy is unnecessary. This was likely done
- // because there was no way to track ownership of the data.
- value_copy := yaml_tag_directive_t{
- handle: make([]byte, len(value.handle)),
- prefix: make([]byte, len(value.prefix)),
- }
- copy(value_copy.handle, value.handle)
- copy(value_copy.prefix, value.prefix)
- parser.tag_directives = append(parser.tag_directives, value_copy)
- return true
-}
diff --git a/readerc.go b/readerc.go
deleted file mode 100644
index d5fb097..0000000
--- a/readerc.go
+++ /dev/null
@@ -1,391 +0,0 @@
-package yaml
-
-import (
- "io"
-)
-
-// Set the reader error and return 0.
-func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
- parser.error = yaml_READER_ERROR
- parser.problem = problem
- parser.problem_offset = offset
- parser.problem_value = value
- return false
-}
-
-// Byte order marks.
-const (
- bom_UTF8 = "\xef\xbb\xbf"
- bom_UTF16LE = "\xff\xfe"
- bom_UTF16BE = "\xfe\xff"
-)
-
-// Determine the input stream encoding by checking the BOM symbol. If no BOM is
-// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
-func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
- // Ensure that we had enough bytes in the raw buffer.
- for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
- if !yaml_parser_update_raw_buffer(parser) {
- return false
- }
- }
-
- // Determine the encoding.
- buf := parser.raw_buffer
- pos := parser.raw_buffer_pos
- avail := len(buf) - pos
- if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
- parser.encoding = yaml_UTF16LE_ENCODING
- parser.raw_buffer_pos += 2
- parser.offset += 2
- } else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
- parser.encoding = yaml_UTF16BE_ENCODING
- parser.raw_buffer_pos += 2
- parser.offset += 2
- } else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
- parser.encoding = yaml_UTF8_ENCODING
- parser.raw_buffer_pos += 3
- parser.offset += 3
- } else {
- parser.encoding = yaml_UTF8_ENCODING
- }
- return true
-}
-
-// Update the raw buffer.
-func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
- size_read := 0
-
- // Return if the raw buffer is full.
- if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
- return true
- }
-
- // Return on EOF.
- if parser.eof {
- return true
- }
-
- // Move the remaining bytes in the raw buffer to the beginning.
- if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
- copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
- }
- parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
- parser.raw_buffer_pos = 0
-
- // Call the read handler to fill the buffer.
- size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
- parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
- if err == io.EOF {
- parser.eof = true
- } else if err != nil {
- return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
- }
- return true
-}
-
-// Ensure that the buffer contains at least `length` characters.
-// Return true on success, false on failure.
-//
-// The length is supposed to be significantly less that the buffer size.
-func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
- if parser.read_handler == nil {
- panic("read handler must be set")
- }
-
- // If the EOF flag is set and the raw buffer is empty, do nothing.
- if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
- return true
- }
-
- // Return if the buffer contains enough characters.
- if parser.unread >= length {
- return true
- }
-
- // Determine the input encoding if it is not known yet.
- if parser.encoding == yaml_ANY_ENCODING {
- if !yaml_parser_determine_encoding(parser) {
- return false
- }
- }
-
- // Move the unread characters to the beginning of the buffer.
- buffer_len := len(parser.buffer)
- if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
- copy(parser.buffer, parser.buffer[parser.buffer_pos:])
- buffer_len -= parser.buffer_pos
- parser.buffer_pos = 0
- } else if parser.buffer_pos == buffer_len {
- buffer_len = 0
- parser.buffer_pos = 0
- }
-
- // Open the whole buffer for writing, and cut it before returning.
- parser.buffer = parser.buffer[:cap(parser.buffer)]
-
- // Fill the buffer until it has enough characters.
- first := true
- for parser.unread < length {
-
- // Fill the raw buffer if necessary.
- if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
- if !yaml_parser_update_raw_buffer(parser) {
- parser.buffer = parser.buffer[:buffer_len]
- return false
- }
- }
- first = false
-
- // Decode the raw buffer.
- inner:
- for parser.raw_buffer_pos != len(parser.raw_buffer) {
- var value rune
- var width int
-
- raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
-
- // Decode the next character.
- switch parser.encoding {
- case yaml_UTF8_ENCODING:
- // Decode a UTF-8 character. Check RFC 3629
- // (http://www.ietf.org/rfc/rfc3629.txt) for more details.
- //
- // The following table (taken from the RFC) is used for
- // decoding.
- //
- // Char. number range | UTF-8 octet sequence
- // (hexadecimal) | (binary)
- // --------------------+------------------------------------
- // 0000 0000-0000 007F | 0xxxxxxx
- // 0000 0080-0000 07FF | 110xxxxx 10xxxxxx
- // 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
- // 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
- //
- // Additionally, the characters in the range 0xD800-0xDFFF
- // are prohibited as they are reserved for use with UTF-16
- // surrogate pairs.
-
- // Determine the length of the UTF-8 sequence.
- octet := parser.raw_buffer[parser.raw_buffer_pos]
- switch {
- case octet&0x80 == 0x00:
- width = 1
- case octet&0xE0 == 0xC0:
- width = 2
- case octet&0xF0 == 0xE0:
- width = 3
- case octet&0xF8 == 0xF0:
- width = 4
- default:
- // The leading octet is invalid.
- return yaml_parser_set_reader_error(parser,
- "invalid leading UTF-8 octet",
- parser.offset, int(octet))
- }
-
- // Check if the raw buffer contains an incomplete character.
- if width > raw_unread {
- if parser.eof {
- return yaml_parser_set_reader_error(parser,
- "incomplete UTF-8 octet sequence",
- parser.offset, -1)
- }
- break inner
- }
-
- // Decode the leading octet.
- switch {
- case octet&0x80 == 0x00:
- value = rune(octet & 0x7F)
- case octet&0xE0 == 0xC0:
- value = rune(octet & 0x1F)
- case octet&0xF0 == 0xE0:
- value = rune(octet & 0x0F)
- case octet&0xF8 == 0xF0:
- value = rune(octet & 0x07)
- default:
- value = 0
- }
-
- // Check and decode the trailing octets.
- for k := 1; k < width; k++ {
- octet = parser.raw_buffer[parser.raw_buffer_pos+k]
-
- // Check if the octet is valid.
- if (octet & 0xC0) != 0x80 {
- return yaml_parser_set_reader_error(parser,
- "invalid trailing UTF-8 octet",
- parser.offset+k, int(octet))
- }
-
- // Decode the octet.
- value = (value << 6) + rune(octet&0x3F)
- }
-
- // Check the length of the sequence against the value.
- switch {
- case width == 1:
- case width == 2 && value >= 0x80:
- case width == 3 && value >= 0x800:
- case width == 4 && value >= 0x10000:
- default:
- return yaml_parser_set_reader_error(parser,
- "invalid length of a UTF-8 sequence",
- parser.offset, -1)
- }
-
- // Check the range of the value.
- if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
- return yaml_parser_set_reader_error(parser,
- "invalid Unicode character",
- parser.offset, int(value))
- }
-
- case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
- var low, high int
- if parser.encoding == yaml_UTF16LE_ENCODING {
- low, high = 0, 1
- } else {
- high, low = 1, 0
- }
-
- // The UTF-16 encoding is not as simple as one might
- // naively think. Check RFC 2781
- // (http://www.ietf.org/rfc/rfc2781.txt).
- //
- // Normally, two subsequent bytes describe a Unicode
- // character. However a special technique (called a
- // surrogate pair) is used for specifying character
- // values larger than 0xFFFF.
- //
- // A surrogate pair consists of two pseudo-characters:
- // high surrogate area (0xD800-0xDBFF)
- // low surrogate area (0xDC00-0xDFFF)
- //
- // The following formulas are used for decoding
- // and encoding characters using surrogate pairs:
- //
- // U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF)
- // U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF)
- // W1 = 110110yyyyyyyyyy
- // W2 = 110111xxxxxxxxxx
- //
- // where U is the character value, W1 is the high surrogate
- // area, W2 is the low surrogate area.
-
- // Check for incomplete UTF-16 character.
- if raw_unread < 2 {
- if parser.eof {
- return yaml_parser_set_reader_error(parser,
- "incomplete UTF-16 character",
- parser.offset, -1)
- }
- break inner
- }
-
- // Get the character.
- value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
- (rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
-
- // Check for unexpected low surrogate area.
- if value&0xFC00 == 0xDC00 {
- return yaml_parser_set_reader_error(parser,
- "unexpected low surrogate area",
- parser.offset, int(value))
- }
-
- // Check for a high surrogate area.
- if value&0xFC00 == 0xD800 {
- width = 4
-
- // Check for incomplete surrogate pair.
- if raw_unread < 4 {
- if parser.eof {
- return yaml_parser_set_reader_error(parser,
- "incomplete UTF-16 surrogate pair",
- parser.offset, -1)
- }
- break inner
- }
-
- // Get the next character.
- value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
- (rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
-
- // Check for a low surrogate area.
- if value2&0xFC00 != 0xDC00 {
- return yaml_parser_set_reader_error(parser,
- "expected low surrogate area",
- parser.offset+2, int(value2))
- }
-
- // Generate the value of the surrogate pair.
- value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
- } else {
- width = 2
- }
-
- default:
- panic("impossible")
- }
-
- // Check if the character is in the allowed range:
- // #x9 | #xA | #xD | [#x20-#x7E] (8 bit)
- // | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit)
- // | [#x10000-#x10FFFF] (32 bit)
- switch {
- case value == 0x09:
- case value == 0x0A:
- case value == 0x0D:
- case value >= 0x20 && value <= 0x7E:
- case value == 0x85:
- case value >= 0xA0 && value <= 0xD7FF:
- case value >= 0xE000 && value <= 0xFFFD:
- case value >= 0x10000 && value <= 0x10FFFF:
- default:
- return yaml_parser_set_reader_error(parser,
- "control characters are not allowed",
- parser.offset, int(value))
- }
-
- // Move the raw pointers.
- parser.raw_buffer_pos += width
- parser.offset += width
-
- // Finally put the character into the buffer.
- if value <= 0x7F {
- // 0000 0000-0000 007F . 0xxxxxxx
- parser.buffer[buffer_len+0] = byte(value)
- } else if value <= 0x7FF {
- // 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
- parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
- parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
- } else if value <= 0xFFFF {
- // 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
- parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
- parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
- parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
- } else {
- // 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
- parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
- parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
- parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
- parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
- }
- buffer_len += width
-
- parser.unread++
- }
-
- // On EOF, put NUL into the buffer and return.
- if parser.eof {
- parser.buffer[buffer_len] = 0
- buffer_len++
- parser.unread++
- break
- }
- }
- parser.buffer = parser.buffer[:buffer_len]
- return true
-}
diff --git a/resolve.go b/resolve.go
deleted file mode 100644
index dbda017..0000000
--- a/resolve.go
+++ /dev/null
@@ -1,150 +0,0 @@
-package yaml
-
-import (
- "math"
- "strconv"
- "strings"
-)
-
-// TODO: merge, timestamps, base 60 floats, omap.
-
-type resolveMapItem struct {
- value interface{}
- tag string
-}
-
-var resolveTable = make([]byte, 256)
-var resolveMap = make(map[string]resolveMapItem)
-
-func init() {
- t := resolveTable
- t[int('+')] = 'S' // Sign
- t[int('-')] = 'S'
- for _, c := range "0123456789" {
- t[int(c)] = 'D' // Digit
- }
- for _, c := range "yYnNtTfFoO~" {
- t[int(c)] = 'M' // In map
- }
- t[int('.')] = '.' // Float (potentially in map)
- t[int('<')] = '<' // Merge
-
- var resolveMapList = []struct {
- v interface{}
- tag string
- l []string
- }{
- {true, "!!bool", []string{"y", "Y", "yes", "Yes", "YES"}},
- {true, "!!bool", []string{"true", "True", "TRUE"}},
- {true, "!!bool", []string{"on", "On", "ON"}},
- {false, "!!bool", []string{"n", "N", "no", "No", "NO"}},
- {false, "!!bool", []string{"false", "False", "FALSE"}},
- {false, "!!bool", []string{"off", "Off", "OFF"}},
- {nil, "!!null", []string{"~", "null", "Null", "NULL"}},
- {math.NaN(), "!!float", []string{".nan", ".NaN", ".NAN"}},
- {math.Inf(+1), "!!float", []string{".inf", ".Inf", ".INF"}},
- {math.Inf(+1), "!!float", []string{"+.inf", "+.Inf", "+.INF"}},
- {math.Inf(-1), "!!float", []string{"-.inf", "-.Inf", "-.INF"}},
- }
-
- m := resolveMap
- for _, item := range resolveMapList {
- for _, s := range item.l {
- m[s] = resolveMapItem{item.v, item.tag}
- }
- }
-}
-
-const longTagPrefix = "tag:yaml.org,2002:"
-
-func shortTag(tag string) string {
- if strings.HasPrefix(tag, longTagPrefix) {
- return "!!" + tag[len(longTagPrefix):]
- }
- return tag
-}
-
-func resolvableTag(tag string) bool {
- switch tag {
- case "", "!!str", "!!bool", "!!int", "!!float", "!!null":
- return true
- }
- return false
-}
-
-func resolve(tag string, in string) (rtag string, out interface{}) {
- tag = shortTag(tag)
- if !resolvableTag(tag) {
- return tag, in
- }
-
- defer func() {
- if tag != "" && tag != rtag {
- panic("Can't decode " + rtag + " '" + in + "' as a " + tag)
- }
- }()
-
- if in == "" {
- return "!!null", nil
- }
-
- c := resolveTable[in[0]]
- if c == 0 {
- // It's a string for sure. Nothing to do.
- return "!!str", in
- }
-
- // Handle things we can lookup in a map.
- if item, ok := resolveMap[in]; ok {
- return item.tag, item.value
- }
-
- switch c {
- case 'M':
- // We've already checked the map above.
-
- case '.':
- // Not in the map, so maybe a normal float.
- floatv, err := strconv.ParseFloat(in, 64)
- if err == nil {
- return "!!float", floatv
- }
- // XXX Handle base 60 floats here (WTF!)
-
- case 'D', 'S':
- // Int, float, or timestamp.
- plain := strings.Replace(in, "_", "", -1)
- intv, err := strconv.ParseInt(plain, 0, 64)
- if err == nil {
- if intv == int64(int(intv)) {
- return "!!int", int(intv)
- } else {
- return "!!int", intv
- }
- }
- floatv, err := strconv.ParseFloat(plain, 64)
- if err == nil {
- return "!!float", floatv
- }
- if strings.HasPrefix(plain, "0b") {
- intv, err := strconv.ParseInt(plain[2:], 2, 64)
- if err == nil {
- return "!!int", int(intv)
- }
- } else if strings.HasPrefix(plain, "-0b") {
- intv, err := strconv.ParseInt(plain[3:], 2, 64)
- if err == nil {
- return "!!int", -int(intv)
- }
- }
- // XXX Handle timestamps here.
-
- case '<':
- // XXX Handle merge (<<) here.
-
- default:
- panic("resolveTable item not yet handled: " +
- string([]byte{c}) + " (with " + in + ")")
- }
- return "!!str", in
-}
diff --git a/scannerc.go b/scannerc.go
deleted file mode 100644
index fe93b19..0000000
--- a/scannerc.go
+++ /dev/null
@@ -1,2710 +0,0 @@
-package yaml
-
-import (
- "bytes"
- "fmt"
-)
-
-// Introduction
-// ************
-//
-// The following notes assume that you are familiar with the YAML specification
-// (http://yaml.org/spec/cvs/current.html). We mostly follow it, although in
-// some cases we are less restrictive that it requires.
-//
-// The process of transforming a YAML stream into a sequence of events is
-// divided on two steps: Scanning and Parsing.
-//
-// The Scanner transforms the input stream into a sequence of tokens, while the
-// parser transform the sequence of tokens produced by the Scanner into a
-// sequence of parsing events.
-//
-// The Scanner is rather clever and complicated. The Parser, on the contrary,
-// is a straightforward implementation of a recursive-descendant parser (or,
-// LL(1) parser, as it is usually called).
-//
-// Actually there are two issues of Scanning that might be called "clever", the
-// rest is quite straightforward. The issues are "block collection start" and
-// "simple keys". Both issues are explained below in details.
-//
-// Here the Scanning step is explained and implemented. We start with the list
-// of all the tokens produced by the Scanner together with short descriptions.
-//
-// Now, tokens:
-//
-// STREAM-START(encoding) # The stream start.
-// STREAM-END # The stream end.
-// VERSION-DIRECTIVE(major,minor) # The '%YAML' directive.
-// TAG-DIRECTIVE(handle,prefix) # The '%TAG' directive.
-// DOCUMENT-START # '---'
-// DOCUMENT-END # '...'
-// BLOCK-SEQUENCE-START # Indentation increase denoting a block
-// BLOCK-MAPPING-START # sequence or a block mapping.
-// BLOCK-END # Indentation decrease.
-// FLOW-SEQUENCE-START # '['
-// FLOW-SEQUENCE-END # ']'
-// BLOCK-SEQUENCE-START # '{'
-// BLOCK-SEQUENCE-END # '}'
-// BLOCK-ENTRY # '-'
-// FLOW-ENTRY # ','
-// KEY # '?' or nothing (simple keys).
-// VALUE # ':'
-// ALIAS(anchor) # '*anchor'
-// ANCHOR(anchor) # '&anchor'
-// TAG(handle,suffix) # '!handle!suffix'
-// SCALAR(value,style) # A scalar.
-//
-// The following two tokens are "virtual" tokens denoting the beginning and the
-// end of the stream:
-//
-// STREAM-START(encoding)
-// STREAM-END
-//
-// We pass the information about the input stream encoding with the
-// STREAM-START token.
-//
-// The next two tokens are responsible for tags:
-//
-// VERSION-DIRECTIVE(major,minor)
-// TAG-DIRECTIVE(handle,prefix)
-//
-// Example:
-//
-// %YAML 1.1
-// %TAG ! !foo
-// %TAG !yaml! tag:yaml.org,2002:
-// ---
-//
-// The correspoding sequence of tokens:
-//
-// STREAM-START(utf-8)
-// VERSION-DIRECTIVE(1,1)
-// TAG-DIRECTIVE("!","!foo")
-// TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
-// DOCUMENT-START
-// STREAM-END
-//
-// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
-// line.
-//
-// The document start and end indicators are represented by:
-//
-// DOCUMENT-START
-// DOCUMENT-END
-//
-// Note that if a YAML stream contains an implicit document (without '---'
-// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
-// produced.
-//
-// In the following examples, we present whole documents together with the
-// produced tokens.
-//
-// 1. An implicit document:
-//
-// 'a scalar'
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// SCALAR("a scalar",single-quoted)
-// STREAM-END
-//
-// 2. An explicit document:
-//
-// ---
-// 'a scalar'
-// ...
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// DOCUMENT-START
-// SCALAR("a scalar",single-quoted)
-// DOCUMENT-END
-// STREAM-END
-//
-// 3. Several documents in a stream:
-//
-// 'a scalar'
-// ---
-// 'another scalar'
-// ---
-// 'yet another scalar'
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// SCALAR("a scalar",single-quoted)
-// DOCUMENT-START
-// SCALAR("another scalar",single-quoted)
-// DOCUMENT-START
-// SCALAR("yet another scalar",single-quoted)
-// STREAM-END
-//
-// We have already introduced the SCALAR token above. The following tokens are
-// used to describe aliases, anchors, tag, and scalars:
-//
-// ALIAS(anchor)
-// ANCHOR(anchor)
-// TAG(handle,suffix)
-// SCALAR(value,style)
-//
-// The following series of examples illustrate the usage of these tokens:
-//
-// 1. A recursive sequence:
-//
-// &A [ *A ]
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// ANCHOR("A")
-// FLOW-SEQUENCE-START
-// ALIAS("A")
-// FLOW-SEQUENCE-END
-// STREAM-END
-//
-// 2. A tagged scalar:
-//
-// !!float "3.14" # A good approximation.
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// TAG("!!","float")
-// SCALAR("3.14",double-quoted)
-// STREAM-END
-//
-// 3. Various scalar styles:
-//
-// --- # Implicit empty plain scalars do not produce tokens.
-// --- a plain scalar
-// --- 'a single-quoted scalar'
-// --- "a double-quoted scalar"
-// --- |-
-// a literal scalar
-// --- >-
-// a folded
-// scalar
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// DOCUMENT-START
-// DOCUMENT-START
-// SCALAR("a plain scalar",plain)
-// DOCUMENT-START
-// SCALAR("a single-quoted scalar",single-quoted)
-// DOCUMENT-START
-// SCALAR("a double-quoted scalar",double-quoted)
-// DOCUMENT-START
-// SCALAR("a literal scalar",literal)
-// DOCUMENT-START
-// SCALAR("a folded scalar",folded)
-// STREAM-END
-//
-// Now it's time to review collection-related tokens. We will start with
-// flow collections:
-//
-// FLOW-SEQUENCE-START
-// FLOW-SEQUENCE-END
-// FLOW-MAPPING-START
-// FLOW-MAPPING-END
-// FLOW-ENTRY
-// KEY
-// VALUE
-//
-// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
-// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
-// correspondingly. FLOW-ENTRY represent the ',' indicator. Finally the
-// indicators '?' and ':', which are used for denoting mapping keys and values,
-// are represented by the KEY and VALUE tokens.
-//
-// The following examples show flow collections:
-//
-// 1. A flow sequence:
-//
-// [item 1, item 2, item 3]
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// FLOW-SEQUENCE-START
-// SCALAR("item 1",plain)
-// FLOW-ENTRY
-// SCALAR("item 2",plain)
-// FLOW-ENTRY
-// SCALAR("item 3",plain)
-// FLOW-SEQUENCE-END
-// STREAM-END
-//
-// 2. A flow mapping:
-//
-// {
-// a simple key: a value, # Note that the KEY token is produced.
-// ? a complex key: another value,
-// }
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// FLOW-MAPPING-START
-// KEY
-// SCALAR("a simple key",plain)
-// VALUE
-// SCALAR("a value",plain)
-// FLOW-ENTRY
-// KEY
-// SCALAR("a complex key",plain)
-// VALUE
-// SCALAR("another value",plain)
-// FLOW-ENTRY
-// FLOW-MAPPING-END
-// STREAM-END
-//
-// A simple key is a key which is not denoted by the '?' indicator. Note that
-// the Scanner still produce the KEY token whenever it encounters a simple key.
-//
-// For scanning block collections, the following tokens are used (note that we
-// repeat KEY and VALUE here):
-//
-// BLOCK-SEQUENCE-START
-// BLOCK-MAPPING-START
-// BLOCK-END
-// BLOCK-ENTRY
-// KEY
-// VALUE
-//
-// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
-// increase that precedes a block collection (cf. the INDENT token in Python).
-// The token BLOCK-END denote indentation decrease that ends a block collection
-// (cf. the DEDENT token in Python). However YAML has some syntax pecularities
-// that makes detections of these tokens more complex.
-//
-// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
-// '-', '?', and ':' correspondingly.
-//
-// The following examples show how the tokens BLOCK-SEQUENCE-START,
-// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
-//
-// 1. Block sequences:
-//
-// - item 1
-// - item 2
-// -
-// - item 3.1
-// - item 3.2
-// -
-// key 1: value 1
-// key 2: value 2
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// SCALAR("item 1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 2",plain)
-// BLOCK-ENTRY
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// SCALAR("item 3.1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 3.2",plain)
-// BLOCK-END
-// BLOCK-ENTRY
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("key 1",plain)
-// VALUE
-// SCALAR("value 1",plain)
-// KEY
-// SCALAR("key 2",plain)
-// VALUE
-// SCALAR("value 2",plain)
-// BLOCK-END
-// BLOCK-END
-// STREAM-END
-//
-// 2. Block mappings:
-//
-// a simple key: a value # The KEY token is produced here.
-// ? a complex key
-// : another value
-// a mapping:
-// key 1: value 1
-// key 2: value 2
-// a sequence:
-// - item 1
-// - item 2
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("a simple key",plain)
-// VALUE
-// SCALAR("a value",plain)
-// KEY
-// SCALAR("a complex key",plain)
-// VALUE
-// SCALAR("another value",plain)
-// KEY
-// SCALAR("a mapping",plain)
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("key 1",plain)
-// VALUE
-// SCALAR("value 1",plain)
-// KEY
-// SCALAR("key 2",plain)
-// VALUE
-// SCALAR("value 2",plain)
-// BLOCK-END
-// KEY
-// SCALAR("a sequence",plain)
-// VALUE
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// SCALAR("item 1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 2",plain)
-// BLOCK-END
-// BLOCK-END
-// STREAM-END
-//
-// YAML does not always require to start a new block collection from a new
-// line. If the current line contains only '-', '?', and ':' indicators, a new
-// block collection may start at the current line. The following examples
-// illustrate this case:
-//
-// 1. Collections in a sequence:
-//
-// - - item 1
-// - item 2
-// - key 1: value 1
-// key 2: value 2
-// - ? complex key
-// : complex value
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// SCALAR("item 1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 2",plain)
-// BLOCK-END
-// BLOCK-ENTRY
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("key 1",plain)
-// VALUE
-// SCALAR("value 1",plain)
-// KEY
-// SCALAR("key 2",plain)
-// VALUE
-// SCALAR("value 2",plain)
-// BLOCK-END
-// BLOCK-ENTRY
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("complex key")
-// VALUE
-// SCALAR("complex value")
-// BLOCK-END
-// BLOCK-END
-// STREAM-END
-//
-// 2. Collections in a mapping:
-//
-// ? a sequence
-// : - item 1
-// - item 2
-// ? a mapping
-// : key 1: value 1
-// key 2: value 2
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("a sequence",plain)
-// VALUE
-// BLOCK-SEQUENCE-START
-// BLOCK-ENTRY
-// SCALAR("item 1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 2",plain)
-// BLOCK-END
-// KEY
-// SCALAR("a mapping",plain)
-// VALUE
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("key 1",plain)
-// VALUE
-// SCALAR("value 1",plain)
-// KEY
-// SCALAR("key 2",plain)
-// VALUE
-// SCALAR("value 2",plain)
-// BLOCK-END
-// BLOCK-END
-// STREAM-END
-//
-// YAML also permits non-indented sequences if they are included into a block
-// mapping. In this case, the token BLOCK-SEQUENCE-START is not produced:
-//
-// key:
-// - item 1 # BLOCK-SEQUENCE-START is NOT produced here.
-// - item 2
-//
-// Tokens:
-//
-// STREAM-START(utf-8)
-// BLOCK-MAPPING-START
-// KEY
-// SCALAR("key",plain)
-// VALUE
-// BLOCK-ENTRY
-// SCALAR("item 1",plain)
-// BLOCK-ENTRY
-// SCALAR("item 2",plain)
-// BLOCK-END
-//
-
-// Ensure that the buffer contains the required number of characters.
-// Return true on success, false on failure (reader error or memory error).
-func cache(parser *yaml_parser_t, length int) bool {
- // [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B)
- return parser.unread >= length || yaml_parser_update_buffer(parser, length)
-}
-
-// Advance the buffer pointer.
-func skip(parser *yaml_parser_t) {
- parser.mark.index++
- parser.mark.column++
- parser.unread--
- parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
-}
-
-func skip_line(parser *yaml_parser_t) {
- if is_crlf(parser.buffer, parser.buffer_pos) {
- parser.mark.index += 2
- parser.mark.column = 0
- parser.mark.line++
- parser.unread -= 2
- parser.buffer_pos += 2
- } else if is_break(parser.buffer, parser.buffer_pos) {
- parser.mark.index++
- parser.mark.column = 0
- parser.mark.line++
- parser.unread--
- parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
- }
-}
-
-// Copy a character to a string buffer and advance pointers.
-func read(parser *yaml_parser_t, s []byte) []byte {
- w := width(parser.buffer[parser.buffer_pos])
- if w == 0 {
- panic("invalid character sequence")
- }
- if len(s) == 0 {
- s = make([]byte, 0, 32)
- }
- if w == 1 && len(s)+w <= cap(s) {
- s = s[:len(s)+1]
- s[len(s)-1] = parser.buffer[parser.buffer_pos]
- parser.buffer_pos++
- } else {
- s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...)
- parser.buffer_pos += w
- }
- parser.mark.index++
- parser.mark.column++
- parser.unread--
- return s
-}
-
-// Copy a line break character to a string buffer and advance pointers.
-func read_line(parser *yaml_parser_t, s []byte) []byte {
- buf := parser.buffer
- pos := parser.buffer_pos
- switch {
- case buf[pos] == '\r' && buf[pos+1] == '\n':
- // CR LF . LF
- s = append(s, '\n')
- parser.buffer_pos += 2
- parser.mark.index++
- parser.unread--
- case buf[pos] == '\r' || buf[pos] == '\n':
- // CR|LF . LF
- s = append(s, '\n')
- parser.buffer_pos += 1
- case buf[pos] == '\xC2' && buf[pos+1] == '\x85':
- // NEL . LF
- s = append(s, '\n')
- parser.buffer_pos += 2
- case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'):
- // LS|PS . LS|PS
- s = append(s, buf[parser.buffer_pos:pos+3]...)
- parser.buffer_pos += 3
- default:
- return s
- }
- parser.mark.index++
- parser.mark.column = 0
- parser.mark.line++
- parser.unread--
- return s
-}
-
-// Get the next token.
-func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool {
- // Erase the token object.
- *token = yaml_token_t{} // [Go] Is this necessary?
-
- // No tokens after STREAM-END or error.
- if parser.stream_end_produced || parser.error != yaml_NO_ERROR {
- return true
- }
-
- // Ensure that the tokens queue contains enough tokens.
- if !parser.token_available {
- if !yaml_parser_fetch_more_tokens(parser) {
- return false
- }
- }
-
- // Fetch the next token from the queue.
- *token = parser.tokens[parser.tokens_head]
- parser.tokens_head++
- parser.tokens_parsed++
- parser.token_available = false
-
- if token.typ == yaml_STREAM_END_TOKEN {
- parser.stream_end_produced = true
- }
- return true
-}
-
-// Set the scanner error and return false.
-func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
- parser.error = yaml_SCANNER_ERROR
- parser.context = context
- parser.context_mark = context_mark
- parser.problem = problem
- parser.problem_mark = parser.mark
- return false
-}
-
-func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool {
- context := "while parsing a tag"
- if directive {
- context = "while parsing a %TAG directive"
- }
- return yaml_parser_set_scanner_error(parser, context, context_mark, "did not find URI escaped octet")
-}
-
-func trace(args ...interface{}) func() {
- pargs := append([]interface{}{"+++"}, args...)
- fmt.Println(pargs...)
- pargs = append([]interface{}{"---"}, args...)
- return func() { fmt.Println(pargs...) }
-}
-
-// Ensure that the tokens queue contains at least one token which can be
-// returned to the Parser.
-func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool {
- // While we need more tokens to fetch, do it.
- for {
- // Check if we really need to fetch more tokens.
- need_more_tokens := false
-
- if parser.tokens_head == len(parser.tokens) {
- // Queue is empty.
- need_more_tokens = true
- } else {
- // Check if any potential simple key may occupy the head position.
- if !yaml_parser_stale_simple_keys(parser) {
- return false
- }
-
- for i := range parser.simple_keys {
- simple_key := &parser.simple_keys[i]
- if simple_key.possible && simple_key.token_number == parser.tokens_parsed {
- need_more_tokens = true
- break
- }
- }
- }
-
- // We are finished.
- if !need_more_tokens {
- break
- }
- // Fetch the next token.
- if !yaml_parser_fetch_next_token(parser) {
- return false
- }
- }
-
- parser.token_available = true
- return true
-}
-
-// The dispatcher for token fetchers.
-func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool {
- // Ensure that the buffer is initialized.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- // Check if we just started scanning. Fetch STREAM-START then.
- if !parser.stream_start_produced {
- return yaml_parser_fetch_stream_start(parser)
- }
-
- // Eat whitespaces and comments until we reach the next token.
- if !yaml_parser_scan_to_next_token(parser) {
- return false
- }
-
- // Remove obsolete potential simple keys.
- if !yaml_parser_stale_simple_keys(parser) {
- return false
- }
-
- // Check the indentation level against the current column.
- if !yaml_parser_unroll_indent(parser, parser.mark.column) {
- return false
- }
-
- // Ensure that the buffer contains at least 4 characters. 4 is the length
- // of the longest indicators ('--- ' and '... ').
- if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
- return false
- }
-
- // Is it the end of the stream?
- if is_z(parser.buffer, parser.buffer_pos) {
- return yaml_parser_fetch_stream_end(parser)
- }
-
- // Is it a directive?
- if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' {
- return yaml_parser_fetch_directive(parser)
- }
-
- buf := parser.buffer
- pos := parser.buffer_pos
-
- // Is it the document start indicator?
- if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) {
- return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN)
- }
-
- // Is it the document end indicator?
- if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) {
- return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN)
- }
-
- // Is it the flow sequence start indicator?
- if buf[pos] == '[' {
- return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN)
- }
-
- // Is it the flow mapping start indicator?
- if parser.buffer[parser.buffer_pos] == '{' {
- return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN)
- }
-
- // Is it the flow sequence end indicator?
- if parser.buffer[parser.buffer_pos] == ']' {
- return yaml_parser_fetch_flow_collection_end(parser,
- yaml_FLOW_SEQUENCE_END_TOKEN)
- }
-
- // Is it the flow mapping end indicator?
- if parser.buffer[parser.buffer_pos] == '}' {
- return yaml_parser_fetch_flow_collection_end(parser,
- yaml_FLOW_MAPPING_END_TOKEN)
- }
-
- // Is it the flow entry indicator?
- if parser.buffer[parser.buffer_pos] == ',' {
- return yaml_parser_fetch_flow_entry(parser)
- }
-
- // Is it the block entry indicator?
- if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) {
- return yaml_parser_fetch_block_entry(parser)
- }
-
- // Is it the key indicator?
- if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
- return yaml_parser_fetch_key(parser)
- }
-
- // Is it the value indicator?
- if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
- return yaml_parser_fetch_value(parser)
- }
-
- // Is it an alias?
- if parser.buffer[parser.buffer_pos] == '*' {
- return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN)
- }
-
- // Is it an anchor?
- if parser.buffer[parser.buffer_pos] == '&' {
- return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN)
- }
-
- // Is it a tag?
- if parser.buffer[parser.buffer_pos] == '!' {
- return yaml_parser_fetch_tag(parser)
- }
-
- // Is it a literal scalar?
- if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 {
- return yaml_parser_fetch_block_scalar(parser, true)
- }
-
- // Is it a folded scalar?
- if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 {
- return yaml_parser_fetch_block_scalar(parser, false)
- }
-
- // Is it a single-quoted scalar?
- if parser.buffer[parser.buffer_pos] == '\'' {
- return yaml_parser_fetch_flow_scalar(parser, true)
- }
-
- // Is it a double-quoted scalar?
- if parser.buffer[parser.buffer_pos] == '"' {
- return yaml_parser_fetch_flow_scalar(parser, false)
- }
-
- // Is it a plain scalar?
- //
- // A plain scalar may start with any non-blank characters except
- //
- // '-', '?', ':', ',', '[', ']', '{', '}',
- // '#', '&', '*', '!', '|', '>', '\'', '\"',
- // '%', '@', '`'.
- //
- // In the block context (and, for the '-' indicator, in the flow context
- // too), it may also start with the characters
- //
- // '-', '?', ':'
- //
- // if it is followed by a non-space character.
- //
- // The last rule is more restrictive than the specification requires.
- // [Go] Make this logic more reasonable.
- //switch parser.buffer[parser.buffer_pos] {
- //case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`':
- //}
- if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' ||
- parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' ||
- parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' ||
- parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
- parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' ||
- parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' ||
- parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' ||
- parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' ||
- parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' ||
- parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') ||
- (parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) ||
- (parser.flow_level == 0 &&
- (parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') &&
- !is_blankz(parser.buffer, parser.buffer_pos+1)) {
- return yaml_parser_fetch_plain_scalar(parser)
- }
-
- // If we don't determine the token type so far, it is an error.
- return yaml_parser_set_scanner_error(parser,
- "while scanning for the next token", parser.mark,
- "found character that cannot start any token")
-}
-
-// Check the list of potential simple keys and remove the positions that
-// cannot contain simple keys anymore.
-func yaml_parser_stale_simple_keys(parser *yaml_parser_t) bool {
- // Check for a potential simple key for each flow level.
- for i := range parser.simple_keys {
- simple_key := &parser.simple_keys[i]
-
- // The specification requires that a simple key
- //
- // - is limited to a single line,
- // - is shorter than 1024 characters.
- if simple_key.possible && (simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index) {
-
- // Check if the potential simple key to be removed is required.
- if simple_key.required {
- return yaml_parser_set_scanner_error(parser,
- "while scanning a simple key", simple_key.mark,
- "could not find expected ':'")
- }
- simple_key.possible = false
- }
- }
- return true
-}
-
-// Check if a simple key may start at the current position and add it if
-// needed.
-func yaml_parser_save_simple_key(parser *yaml_parser_t) bool {
- // A simple key is required at the current position if the scanner is in
- // the block context and the current column coincides with the indentation
- // level.
-
- required := parser.flow_level == 0 && parser.indent == parser.mark.column
-
- // A simple key is required only when it is the first token in the current
- // line. Therefore it is always allowed. But we add a check anyway.
- if required && !parser.simple_key_allowed {
- panic("should not happen")
- }
-
- //
- // If the current position may start a simple key, save it.
- //
- if parser.simple_key_allowed {
- simple_key := yaml_simple_key_t{
- possible: true,
- required: required,
- token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head),
- }
- simple_key.mark = parser.mark
-
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
- parser.simple_keys[len(parser.simple_keys)-1] = simple_key
- }
- return true
-}
-
-// Remove a potential simple key at the current flow level.
-func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool {
- i := len(parser.simple_keys) - 1
- if parser.simple_keys[i].possible {
- // If the key is required, it is an error.
- if parser.simple_keys[i].required {
- return yaml_parser_set_scanner_error(parser,
- "while scanning a simple key", parser.simple_keys[i].mark,
- "could not find expected ':'")
- }
- }
- // Remove the key from the stack.
- parser.simple_keys[i].possible = false
- return true
-}
-
-// Increase the flow level and resize the simple key list if needed.
-func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool {
- // Reset the simple key on the next level.
- parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
-
- // Increase the flow level.
- parser.flow_level++
- return true
-}
-
-// Decrease the flow level.
-func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool {
- if parser.flow_level > 0 {
- parser.flow_level--
- parser.simple_keys = parser.simple_keys[:len(parser.simple_keys)-1]
- }
- return true
-}
-
-// Push the current indentation level to the stack and set the new level
-// the current column is greater than the indentation level. In this case,
-// append or insert the specified token into the token queue.
-func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool {
- // In the flow context, do nothing.
- if parser.flow_level > 0 {
- return true
- }
-
- if parser.indent < column {
- // Push the current indentation level to the stack and set the new
- // indentation level.
- parser.indents = append(parser.indents, parser.indent)
- parser.indent = column
-
- // Create a token and insert it into the queue.
- token := yaml_token_t{
- typ: typ,
- start_mark: mark,
- end_mark: mark,
- }
- if number > -1 {
- number -= parser.tokens_parsed
- }
- yaml_insert_token(parser, number, &token)
- }
- return true
-}
-
-// Pop indentation levels from the indents stack until the current level
-// becomes less or equal to the column. For each intendation level, append
-// the BLOCK-END token.
-func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool {
- // In the flow context, do nothing.
- if parser.flow_level > 0 {
- return true
- }
-
- // Loop through the intendation levels in the stack.
- for parser.indent > column {
- // Create a token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_BLOCK_END_TOKEN,
- start_mark: parser.mark,
- end_mark: parser.mark,
- }
- yaml_insert_token(parser, -1, &token)
-
- // Pop the indentation level.
- parser.indent = parser.indents[len(parser.indents)-1]
- parser.indents = parser.indents[:len(parser.indents)-1]
- }
- return true
-}
-
-// Initialize the scanner and produce the STREAM-START token.
-func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool {
-
- // Set the initial indentation.
- parser.indent = -1
-
- // Initialize the simple key stack.
- parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
-
- // A simple key is allowed at the beginning of the stream.
- parser.simple_key_allowed = true
-
- // We have started.
- parser.stream_start_produced = true
-
- // Create the STREAM-START token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_STREAM_START_TOKEN,
- start_mark: parser.mark,
- end_mark: parser.mark,
- encoding: parser.encoding,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the STREAM-END token and shut down the scanner.
-func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool {
-
- // Force new line.
- if parser.mark.column != 0 {
- parser.mark.column = 0
- parser.mark.line++
- }
-
- // Reset the indentation level.
- if !yaml_parser_unroll_indent(parser, -1) {
- return false
- }
-
- // Reset simple keys.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- parser.simple_key_allowed = false
-
- // Create the STREAM-END token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_STREAM_END_TOKEN,
- start_mark: parser.mark,
- end_mark: parser.mark,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
-func yaml_parser_fetch_directive(parser *yaml_parser_t) bool {
- // Reset the indentation level.
- if !yaml_parser_unroll_indent(parser, -1) {
- return false
- }
-
- // Reset simple keys.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- parser.simple_key_allowed = false
-
- // Create the YAML-DIRECTIVE or TAG-DIRECTIVE token.
- token := yaml_token_t{}
- if !yaml_parser_scan_directive(parser, &token) {
- return false
- }
- // Append the token to the queue.
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the DOCUMENT-START or DOCUMENT-END token.
-func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool {
- // Reset the indentation level.
- if !yaml_parser_unroll_indent(parser, -1) {
- return false
- }
-
- // Reset simple keys.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- parser.simple_key_allowed = false
-
- // Consume the token.
- start_mark := parser.mark
-
- skip(parser)
- skip(parser)
- skip(parser)
-
- end_mark := parser.mark
-
- // Create the DOCUMENT-START or DOCUMENT-END token.
- token := yaml_token_t{
- typ: typ,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- // Append the token to the queue.
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
-func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool {
- // The indicators '[' and '{' may start a simple key.
- if !yaml_parser_save_simple_key(parser) {
- return false
- }
-
- // Increase the flow level.
- if !yaml_parser_increase_flow_level(parser) {
- return false
- }
-
- // A simple key may follow the indicators '[' and '{'.
- parser.simple_key_allowed = true
-
- // Consume the token.
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token.
- token := yaml_token_t{
- typ: typ,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- // Append the token to the queue.
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
-func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool {
- // Reset any potential simple key on the current flow level.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- // Decrease the flow level.
- if !yaml_parser_decrease_flow_level(parser) {
- return false
- }
-
- // No simple keys after the indicators ']' and '}'.
- parser.simple_key_allowed = false
-
- // Consume the token.
-
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token.
- token := yaml_token_t{
- typ: typ,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- // Append the token to the queue.
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the FLOW-ENTRY token.
-func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool {
- // Reset any potential simple keys on the current flow level.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- // Simple keys are allowed after ','.
- parser.simple_key_allowed = true
-
- // Consume the token.
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the FLOW-ENTRY token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_FLOW_ENTRY_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the BLOCK-ENTRY token.
-func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool {
- // Check if the scanner is in the block context.
- if parser.flow_level == 0 {
- // Check if we are allowed to start a new entry.
- if !parser.simple_key_allowed {
- return yaml_parser_set_scanner_error(parser, "", parser.mark,
- "block sequence entries are not allowed in this context")
- }
- // Add the BLOCK-SEQUENCE-START token if needed.
- if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) {
- return false
- }
- } else {
- // It is an error for the '-' indicator to occur in the flow context,
- // but we let the Parser detect and report about it because the Parser
- // is able to point to the context.
- }
-
- // Reset any potential simple keys on the current flow level.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- // Simple keys are allowed after '-'.
- parser.simple_key_allowed = true
-
- // Consume the token.
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the BLOCK-ENTRY token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_BLOCK_ENTRY_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the KEY token.
-func yaml_parser_fetch_key(parser *yaml_parser_t) bool {
-
- // In the block context, additional checks are required.
- if parser.flow_level == 0 {
- // Check if we are allowed to start a new key (not nessesary simple).
- if !parser.simple_key_allowed {
- return yaml_parser_set_scanner_error(parser, "", parser.mark,
- "mapping keys are not allowed in this context")
- }
- // Add the BLOCK-MAPPING-START token if needed.
- if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
- return false
- }
- }
-
- // Reset any potential simple keys on the current flow level.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- // Simple keys are allowed after '?' in the block context.
- parser.simple_key_allowed = parser.flow_level == 0
-
- // Consume the token.
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the KEY token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_KEY_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the VALUE token.
-func yaml_parser_fetch_value(parser *yaml_parser_t) bool {
-
- simple_key := &parser.simple_keys[len(parser.simple_keys)-1]
-
- // Have we found a simple key?
- if simple_key.possible {
- // Create the KEY token and insert it into the queue.
- token := yaml_token_t{
- typ: yaml_KEY_TOKEN,
- start_mark: simple_key.mark,
- end_mark: simple_key.mark,
- }
- yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token)
-
- // In the block context, we may need to add the BLOCK-MAPPING-START token.
- if !yaml_parser_roll_indent(parser, simple_key.mark.column,
- simple_key.token_number,
- yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) {
- return false
- }
-
- // Remove the simple key.
- simple_key.possible = false
-
- // A simple key cannot follow another simple key.
- parser.simple_key_allowed = false
-
- } else {
- // The ':' indicator follows a complex key.
-
- // In the block context, extra checks are required.
- if parser.flow_level == 0 {
-
- // Check if we are allowed to start a complex value.
- if !parser.simple_key_allowed {
- return yaml_parser_set_scanner_error(parser, "", parser.mark,
- "mapping values are not allowed in this context")
- }
-
- // Add the BLOCK-MAPPING-START token if needed.
- if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
- return false
- }
- }
-
- // Simple keys after ':' are allowed in the block context.
- parser.simple_key_allowed = parser.flow_level == 0
- }
-
- // Consume the token.
- start_mark := parser.mark
- skip(parser)
- end_mark := parser.mark
-
- // Create the VALUE token and append it to the queue.
- token := yaml_token_t{
- typ: yaml_VALUE_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the ALIAS or ANCHOR token.
-func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool {
- // An anchor or an alias could be a simple key.
- if !yaml_parser_save_simple_key(parser) {
- return false
- }
-
- // A simple key cannot follow an anchor or an alias.
- parser.simple_key_allowed = false
-
- // Create the ALIAS or ANCHOR token and append it to the queue.
- var token yaml_token_t
- if !yaml_parser_scan_anchor(parser, &token, typ) {
- return false
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the TAG token.
-func yaml_parser_fetch_tag(parser *yaml_parser_t) bool {
- // A tag could be a simple key.
- if !yaml_parser_save_simple_key(parser) {
- return false
- }
-
- // A simple key cannot follow a tag.
- parser.simple_key_allowed = false
-
- // Create the TAG token and append it to the queue.
- var token yaml_token_t
- if !yaml_parser_scan_tag(parser, &token) {
- return false
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
-func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool {
- // Remove any potential simple keys.
- if !yaml_parser_remove_simple_key(parser) {
- return false
- }
-
- // A simple key may follow a block scalar.
- parser.simple_key_allowed = true
-
- // Create the SCALAR token and append it to the queue.
- var token yaml_token_t
- if !yaml_parser_scan_block_scalar(parser, &token, literal) {
- return false
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
-func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool {
- // A plain scalar could be a simple key.
- if !yaml_parser_save_simple_key(parser) {
- return false
- }
-
- // A simple key cannot follow a flow scalar.
- parser.simple_key_allowed = false
-
- // Create the SCALAR token and append it to the queue.
- var token yaml_token_t
- if !yaml_parser_scan_flow_scalar(parser, &token, single) {
- return false
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Produce the SCALAR(...,plain) token.
-func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool {
- // A plain scalar could be a simple key.
- if !yaml_parser_save_simple_key(parser) {
- return false
- }
-
- // A simple key cannot follow a flow scalar.
- parser.simple_key_allowed = false
-
- // Create the SCALAR token and append it to the queue.
- var token yaml_token_t
- if !yaml_parser_scan_plain_scalar(parser, &token) {
- return false
- }
- yaml_insert_token(parser, -1, &token)
- return true
-}
-
-// Eat whitespaces and comments until the next token is found.
-func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool {
-
- // Until the next token is not found.
- for {
- // Allow the BOM mark to start a line.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) {
- skip(parser)
- }
-
- // Eat whitespaces.
- // Tabs are allowed:
- // - in the flow context
- // - in the block context, but not at the beginning of the line or
- // after '-', '?', or ':' (complex value).
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Eat a comment until a line break.
- if parser.buffer[parser.buffer_pos] == '#' {
- for !is_breakz(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
- }
-
- // If it is a line break, eat it.
- if is_break(parser.buffer, parser.buffer_pos) {
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- skip_line(parser)
-
- // In the block context, a new line may start a simple key.
- if parser.flow_level == 0 {
- parser.simple_key_allowed = true
- }
- } else {
- break // We have found a token.
- }
- }
-
- return true
-}
-
-// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
-//
-// Scope:
-// %YAML 1.1 # a comment \n
-// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// %TAG !yaml! tag:yaml.org,2002: \n
-// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-//
-func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool {
- // Eat '%'.
- start_mark := parser.mark
- skip(parser)
-
- // Scan the directive name.
- var name []byte
- if !yaml_parser_scan_directive_name(parser, start_mark, &name) {
- return false
- }
-
- // Is it a YAML directive?
- if bytes.Equal(name, []byte("YAML")) {
- // Scan the VERSION directive value.
- var major, minor int8
- if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) {
- return false
- }
- end_mark := parser.mark
-
- // Create a VERSION-DIRECTIVE token.
- *token = yaml_token_t{
- typ: yaml_VERSION_DIRECTIVE_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- major: major,
- minor: minor,
- }
-
- // Is it a TAG directive?
- } else if bytes.Equal(name, []byte("TAG")) {
- // Scan the TAG directive value.
- var handle, prefix []byte
- if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) {
- return false
- }
- end_mark := parser.mark
-
- // Create a TAG-DIRECTIVE token.
- *token = yaml_token_t{
- typ: yaml_TAG_DIRECTIVE_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- value: handle,
- prefix: prefix,
- }
-
- // Unknown directive.
- } else {
- yaml_parser_set_scanner_error(parser, "while scanning a directive",
- start_mark, "found uknown directive name")
- return false
- }
-
- // Eat the rest of the line including any comments.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for is_blank(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- if parser.buffer[parser.buffer_pos] == '#' {
- for !is_breakz(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
- }
-
- // Check if we are at the end of the line.
- if !is_breakz(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a directive",
- start_mark, "did not find expected comment or line break")
- return false
- }
-
- // Eat a line break.
- if is_break(parser.buffer, parser.buffer_pos) {
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- skip_line(parser)
- }
-
- return true
-}
-
-// Scan the directive name.
-//
-// Scope:
-// %YAML 1.1 # a comment \n
-// ^^^^
-// %TAG !yaml! tag:yaml.org,2002: \n
-// ^^^
-//
-func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool {
- // Consume the directive name.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- var s []byte
- for is_alpha(parser.buffer, parser.buffer_pos) {
- s = read(parser, s)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Check if the name is empty.
- if len(s) == 0 {
- yaml_parser_set_scanner_error(parser, "while scanning a directive",
- start_mark, "could not find expected directive name")
- return false
- }
-
- // Check for an blank character after the name.
- if !is_blankz(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a directive",
- start_mark, "found unexpected non-alphabetical character")
- return false
- }
- *name = s
- return true
-}
-
-// Scan the value of VERSION-DIRECTIVE.
-//
-// Scope:
-// %YAML 1.1 # a comment \n
-// ^^^^^^
-func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool {
- // Eat whitespaces.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- for is_blank(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Consume the major version number.
- if !yaml_parser_scan_version_directive_number(parser, start_mark, major) {
- return false
- }
-
- // Eat '.'.
- if parser.buffer[parser.buffer_pos] != '.' {
- return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
- start_mark, "did not find expected digit or '.' character")
- }
-
- skip(parser)
-
- // Consume the minor version number.
- if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) {
- return false
- }
- return true
-}
-
-const max_number_length = 2
-
-// Scan the version number of VERSION-DIRECTIVE.
-//
-// Scope:
-// %YAML 1.1 # a comment \n
-// ^
-// %YAML 1.1 # a comment \n
-// ^
-func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool {
-
- // Repeat while the next character is digit.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- var value, length int8
- for is_digit(parser.buffer, parser.buffer_pos) {
- // Check if the number is too long.
- length++
- if length > max_number_length {
- return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
- start_mark, "found extremely long version number")
- }
- value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos))
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Check if the number was present.
- if length == 0 {
- return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
- start_mark, "did not find expected version number")
- }
- *number = value
- return true
-}
-
-// Scan the value of a TAG-DIRECTIVE token.
-//
-// Scope:
-// %TAG !yaml! tag:yaml.org,2002: \n
-// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-//
-func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool {
- var handle_value, prefix_value []byte
-
- // Eat whitespaces.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for is_blank(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Scan a handle.
- if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) {
- return false
- }
-
- // Expect a whitespace.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if !is_blank(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
- start_mark, "did not find expected whitespace")
- return false
- }
-
- // Eat whitespaces.
- for is_blank(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Scan a prefix.
- if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) {
- return false
- }
-
- // Expect a whitespace or line break.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if !is_blankz(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
- start_mark, "did not find expected whitespace or line break")
- return false
- }
-
- *handle = handle_value
- *prefix = prefix_value
- return true
-}
-
-func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool {
- var s []byte
-
- // Eat the indicator character.
- start_mark := parser.mark
- skip(parser)
-
- // Consume the value.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for is_alpha(parser.buffer, parser.buffer_pos) {
- s = read(parser, s)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- end_mark := parser.mark
-
- /*
- * Check if length of the anchor is greater than 0 and it is followed by
- * a whitespace character or one of the indicators:
- *
- * '?', ':', ',', ']', '}', '%', '@', '`'.
- */
-
- if len(s) == 0 ||
- !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' ||
- parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' ||
- parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' ||
- parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' ||
- parser.buffer[parser.buffer_pos] == '`') {
- context := "while scanning an alias"
- if typ == yaml_ANCHOR_TOKEN {
- context = "while scanning an anchor"
- }
- yaml_parser_set_scanner_error(parser, context, start_mark,
- "did not find expected alphabetic or numeric character")
- return false
- }
-
- // Create a token.
- *token = yaml_token_t{
- typ: typ,
- start_mark: start_mark,
- end_mark: end_mark,
- value: s,
- }
-
- return true
-}
-
-/*
- * Scan a TAG token.
- */
-
-func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool {
- var handle, suffix []byte
-
- start_mark := parser.mark
-
- // Check if the tag is in the canonical form.
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
-
- if parser.buffer[parser.buffer_pos+1] == '<' {
- // Keep the handle as ''
-
- // Eat '!<'
- skip(parser)
- skip(parser)
-
- // Consume the tag value.
- if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
- return false
- }
-
- // Check for '>' and eat it.
- if parser.buffer[parser.buffer_pos] != '>' {
- yaml_parser_set_scanner_error(parser, "while scanning a tag",
- start_mark, "did not find the expected '>'")
- return false
- }
-
- skip(parser)
- } else {
- // The tag has either the '!suffix' or the '!handle!suffix' form.
-
- // First, try to scan a handle.
- if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) {
- return false
- }
-
- // Check if it is, indeed, handle.
- if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' {
- // Scan the suffix now.
- if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
- return false
- }
- } else {
- // It wasn't a handle after all. Scan the rest of the tag.
- if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) {
- return false
- }
-
- // Set the handle to '!'.
- handle = []byte{'!'}
-
- // A special case: the '!' tag. Set the handle to '' and the
- // suffix to '!'.
- if len(suffix) == 0 {
- handle, suffix = suffix, handle
- }
- }
- }
-
- // Check the character which ends the tag.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if !is_blankz(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a tag",
- start_mark, "did not find expected whitespace or line break")
- return false
- }
-
- end_mark := parser.mark
-
- // Create a token.
- *token = yaml_token_t{
- typ: yaml_TAG_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- value: handle,
- suffix: suffix,
- }
- return true
-}
-
-// Scan a tag handle.
-func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool {
- // Check the initial '!' character.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if parser.buffer[parser.buffer_pos] != '!' {
- yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "did not find expected '!'")
- return false
- }
-
- var s []byte
-
- // Copy the '!' character.
- s = read(parser, s)
-
- // Copy all subsequent alphabetical and numerical characters.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- for is_alpha(parser.buffer, parser.buffer_pos) {
- s = read(parser, s)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Check if the trailing character is '!' and copy it.
- if parser.buffer[parser.buffer_pos] == '!' {
- s = read(parser, s)
- } else {
- // It's either the '!' tag or not really a tag handle. If it's a %TAG
- // directive, it's an error. If it's a tag token, it must be a part of URI.
- if directive && !(s[0] == '!' && s[1] == 0) {
- yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "did not find expected '!'")
- return false
- }
- }
-
- *handle = s
- return true
-}
-
-// Scan a tag.
-func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool {
- //size_t length = head ? strlen((char *)head) : 0
- var s []byte
-
- // Copy the head if needed.
- //
- // Note that we don't copy the leading '!' character.
- if len(head) > 1 {
- s = append(s, head[1:]...)
- }
-
- // Scan the tag.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- // The set of characters that may appear in URI is as follows:
- //
- // '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
- // '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
- // '%'.
- // [Go] Convert this into more reasonable logic.
- for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' ||
- parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' ||
- parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' ||
- parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' ||
- parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' ||
- parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' ||
- parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' ||
- parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' ||
- parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' ||
- parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' ||
- parser.buffer[parser.buffer_pos] == '%' {
- // Check if it is a URI-escape sequence.
- if parser.buffer[parser.buffer_pos] == '%' {
- if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) {
- return false
- }
- } else {
- s = read(parser, s)
- }
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Check if the tag is non-empty.
- if len(s) == 0 {
- yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "did not find expected tag URI")
- return false
- }
- *uri = s
- return true
-}
-
-// Decode an URI-escape sequence corresponding to a single UTF-8 character.
-func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool {
-
- // Decode the required number of characters.
- w := 1024
- for w > 0 {
- // Check for a URI-escaped octet.
- if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
- return false
- }
-
- if !(parser.buffer[parser.buffer_pos] == '%' &&
- is_hex(parser.buffer, parser.buffer_pos+1) &&
- is_hex(parser.buffer, parser.buffer_pos+2)) {
- return yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "did not find URI escaped octet")
- }
-
- // Get the octet.
- octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2))
-
- // If it is the leading octet, determine the length of the UTF-8 sequence.
- if w == 1024 {
- w = width(octet)
- if w == 0 {
- return yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "found an incorrect leading UTF-8 octet")
- }
- } else {
- // Check if the trailing octet is correct.
- if octet&0xC0 != 0x80 {
- return yaml_parser_set_scanner_tag_error(parser, directive,
- start_mark, "found an incorrect trailing UTF-8 octet")
- }
- }
-
- // Copy the octet and move the pointers.
- *s = append(*s, octet)
- skip(parser)
- skip(parser)
- skip(parser)
- w--
- }
- return true
-}
-
-// Scan a block scalar.
-func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool {
- // Eat the indicator '|' or '>'.
- start_mark := parser.mark
- skip(parser)
-
- // Scan the additional block scalar indicators.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- // Check for a chomping indicator.
- var chomping, increment int
- if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
- // Set the chomping method and eat the indicator.
- if parser.buffer[parser.buffer_pos] == '+' {
- chomping = +1
- } else {
- chomping = -1
- }
- skip(parser)
-
- // Check for an indentation indicator.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if is_digit(parser.buffer, parser.buffer_pos) {
- // Check that the intendation is greater than 0.
- if parser.buffer[parser.buffer_pos] == '0' {
- yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
- start_mark, "found an intendation indicator equal to 0")
- return false
- }
-
- // Get the intendation level and eat the indicator.
- increment = as_digit(parser.buffer, parser.buffer_pos)
- skip(parser)
- }
-
- } else if is_digit(parser.buffer, parser.buffer_pos) {
- // Do the same as above, but in the opposite order.
-
- if parser.buffer[parser.buffer_pos] == '0' {
- yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
- start_mark, "found an intendation indicator equal to 0")
- return false
- }
- increment = as_digit(parser.buffer, parser.buffer_pos)
- skip(parser)
-
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
- if parser.buffer[parser.buffer_pos] == '+' {
- chomping = +1
- } else {
- chomping = -1
- }
- skip(parser)
- }
- }
-
- // Eat whitespaces and comments to the end of the line.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- for is_blank(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
- if parser.buffer[parser.buffer_pos] == '#' {
- for !is_breakz(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
- }
-
- // Check if we are at the end of the line.
- if !is_breakz(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
- start_mark, "did not find expected comment or line break")
- return false
- }
-
- // Eat a line break.
- if is_break(parser.buffer, parser.buffer_pos) {
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- skip_line(parser)
- }
-
- end_mark := parser.mark
-
- // Set the intendation level if it was specified.
- var indent int
- if increment > 0 {
- if parser.indent >= 0 {
- indent = parser.indent + increment
- } else {
- indent = increment
- }
- }
-
- // Scan the leading line breaks and determine the indentation level if needed.
- var s, leading_break, trailing_breaks []byte
- if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
- return false
- }
-
- // Scan the block scalar content.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- var leading_blank, trailing_blank bool
- for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) {
- // We are at the beginning of a non-empty line.
-
- // Is it a trailing whitespace?
- trailing_blank = is_blank(parser.buffer, parser.buffer_pos)
-
- // Check if we need to fold the leading line break.
- if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' {
- // Do we need to join the lines by space?
- if len(trailing_breaks) == 0 {
- s = append(s, ' ')
- }
- } else {
- s = append(s, leading_break...)
- }
- leading_break = leading_break[:0]
-
- // Append the remaining line breaks.
- s = append(s, trailing_breaks...)
- trailing_breaks = trailing_breaks[:0]
-
- // Is it a leading whitespace?
- leading_blank = is_blank(parser.buffer, parser.buffer_pos)
-
- // Consume the current line.
- for !is_breakz(parser.buffer, parser.buffer_pos) {
- s = read(parser, s)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Consume the line break.
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
-
- leading_break = read_line(parser, leading_break)
-
- // Eat the following intendation spaces and line breaks.
- if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
- return false
- }
- }
-
- // Chomp the tail.
- if chomping != -1 {
- s = append(s, leading_break...)
- }
- if chomping == 1 {
- s = append(s, trailing_breaks...)
- }
-
- // Create a token.
- *token = yaml_token_t{
- typ: yaml_SCALAR_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- value: s,
- style: yaml_LITERAL_SCALAR_STYLE,
- }
- if !literal {
- token.style = yaml_FOLDED_SCALAR_STYLE
- }
- return true
-}
-
-// Scan intendation spaces and line breaks for a block scalar. Determine the
-// intendation level if needed.
-func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool {
- *end_mark = parser.mark
-
- // Eat the intendation spaces and line breaks.
- max_indent := 0
- for {
- // Eat the intendation spaces.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) {
- skip(parser)
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
- if parser.mark.column > max_indent {
- max_indent = parser.mark.column
- }
-
- // Check for a tab character messing the intendation.
- if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) {
- return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
- start_mark, "found a tab character where an intendation space is expected")
- }
-
- // Have we found a non-empty line?
- if !is_break(parser.buffer, parser.buffer_pos) {
- break
- }
-
- // Consume the line break.
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- // [Go] Should really be returning breaks instead.
- *breaks = read_line(parser, *breaks)
- *end_mark = parser.mark
- }
-
- // Determine the indentation level if needed.
- if *indent == 0 {
- *indent = max_indent
- if *indent < parser.indent+1 {
- *indent = parser.indent + 1
- }
- if *indent < 1 {
- *indent = 1
- }
- }
- return true
-}
-
-// Scan a quoted scalar.
-func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool {
- // Eat the left quote.
- start_mark := parser.mark
- skip(parser)
-
- // Consume the content of the quoted scalar.
- var s, leading_break, trailing_breaks, whitespaces []byte
- for {
- // Check that there are no document indicators at the beginning of the line.
- if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
- return false
- }
-
- if parser.mark.column == 0 &&
- ((parser.buffer[parser.buffer_pos+0] == '-' &&
- parser.buffer[parser.buffer_pos+1] == '-' &&
- parser.buffer[parser.buffer_pos+2] == '-') ||
- (parser.buffer[parser.buffer_pos+0] == '.' &&
- parser.buffer[parser.buffer_pos+1] == '.' &&
- parser.buffer[parser.buffer_pos+2] == '.')) &&
- is_blankz(parser.buffer, parser.buffer_pos+3) {
- yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
- start_mark, "found unexpected document indicator")
- return false
- }
-
- // Check for EOF.
- if is_z(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
- start_mark, "found unexpected end of stream")
- return false
- }
-
- // Consume non-blank characters.
- leading_blanks := false
- for !is_blankz(parser.buffer, parser.buffer_pos) {
- if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' {
- // Is is an escaped single quote.
- s = append(s, '\'')
- skip(parser)
- skip(parser)
-
- } else if single && parser.buffer[parser.buffer_pos] == '\'' {
- // It is a right single quote.
- break
- } else if !single && parser.buffer[parser.buffer_pos] == '"' {
- // It is a right double quote.
- break
-
- } else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) {
- // It is an escaped line break.
- if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
- return false
- }
- skip(parser)
- skip_line(parser)
- leading_blanks = true
- break
-
- } else if !single && parser.buffer[parser.buffer_pos] == '\\' {
- // It is an escape sequence.
- code_length := 0
-
- // Check the escape character.
- switch parser.buffer[parser.buffer_pos+1] {
- case '0':
- s = append(s, 0)
- case 'a':
- s = append(s, '\x07')
- case 'b':
- s = append(s, '\x08')
- case 't', '\t':
- s = append(s, '\x09')
- case 'n':
- s = append(s, '\x0A')
- case 'v':
- s = append(s, '\x0B')
- case 'f':
- s = append(s, '\x0C')
- case 'r':
- s = append(s, '\x0D')
- case 'e':
- s = append(s, '\x1B')
- case ' ':
- s = append(s, '\x20')
- case '"':
- s = append(s, '"')
- case '\'':
- s = append(s, '\'')
- case '\\':
- s = append(s, '\\')
- case 'N': // NEL (#x85)
- s = append(s, '\xC2')
- s = append(s, '\x85')
- case '_': // #xA0
- s = append(s, '\xC2')
- s = append(s, '\xA0')
- case 'L': // LS (#x2028)
- s = append(s, '\xE2')
- s = append(s, '\x80')
- s = append(s, '\xA8')
- case 'P': // PS (#x2029)
- s = append(s, '\xE2')
- s = append(s, '\x80')
- s = append(s, '\xA9')
- case 'x':
- code_length = 2
- case 'u':
- code_length = 4
- case 'U':
- code_length = 8
- default:
- yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
- start_mark, "found unknown escape character")
- return false
- }
-
- skip(parser)
- skip(parser)
-
- // Consume an arbitrary escape code.
- if code_length > 0 {
- var value int
-
- // Scan the character value.
- if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) {
- return false
- }
- for k := 0; k < code_length; k++ {
- if !is_hex(parser.buffer, parser.buffer_pos+k) {
- yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
- start_mark, "did not find expected hexdecimal number")
- return false
- }
- value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k)
- }
-
- // Check the value and write the character.
- if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
- yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
- start_mark, "found invalid Unicode character escape code")
- return false
- }
- if value <= 0x7F {
- s = append(s, byte(value))
- } else if value <= 0x7FF {
- s = append(s, byte(0xC0+(value>>6)))
- s = append(s, byte(0x80+(value&0x3F)))
- } else if value <= 0xFFFF {
- s = append(s, byte(0xE0+(value>>12)))
- s = append(s, byte(0x80+((value>>6)&0x3F)))
- s = append(s, byte(0x80+(value&0x3F)))
- } else {
- s = append(s, byte(0xF0+(value>>18)))
- s = append(s, byte(0x80+((value>>12)&0x3F)))
- s = append(s, byte(0x80+((value>>6)&0x3F)))
- s = append(s, byte(0x80+(value&0x3F)))
- }
-
- // Advance the pointer.
- for k := 0; k < code_length; k++ {
- skip(parser)
- }
- }
- } else {
- // It is a non-escaped non-blank character.
- s = read(parser, s)
- }
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- }
-
- // Check if we are at the end of the scalar.
- if single {
- if parser.buffer[parser.buffer_pos] == '\'' {
- break
- }
- } else {
- if parser.buffer[parser.buffer_pos] == '"' {
- break
- }
- }
-
- // Consume blank characters.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
- if is_blank(parser.buffer, parser.buffer_pos) {
- // Consume a space or a tab character.
- if !leading_blanks {
- whitespaces = read(parser, whitespaces)
- } else {
- skip(parser)
- }
- } else {
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
-
- // Check if it is a first line break.
- if !leading_blanks {
- whitespaces = whitespaces[:0]
- leading_break = read_line(parser, leading_break)
- leading_blanks = true
- } else {
- trailing_breaks = read_line(parser, trailing_breaks)
- }
- }
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Join the whitespaces or fold line breaks.
- if leading_blanks {
- // Do we need to fold line breaks?
- if len(leading_break) > 0 && leading_break[0] == '\n' {
- if len(trailing_breaks) == 0 {
- s = append(s, ' ')
- } else {
- s = append(s, trailing_breaks...)
- }
- } else {
- s = append(s, leading_break...)
- s = append(s, trailing_breaks...)
- }
- trailing_breaks = trailing_breaks[:0]
- leading_break = leading_break[:0]
- } else {
- s = append(s, whitespaces...)
- whitespaces = whitespaces[:0]
- }
- }
-
- // Eat the right quote.
- skip(parser)
- end_mark := parser.mark
-
- // Create a token.
- *token = yaml_token_t{
- typ: yaml_SCALAR_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- value: s,
- style: yaml_SINGLE_QUOTED_SCALAR_STYLE,
- }
- if !single {
- token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
- return true
-}
-
-// Scan a plain scalar.
-func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool {
-
- var s, leading_break, trailing_breaks, whitespaces []byte
- var leading_blanks bool
- var indent = parser.indent + 1
-
- start_mark := parser.mark
- end_mark := parser.mark
-
- // Consume the content of the plain scalar.
- for {
- // Check for a document indicator.
- if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
- return false
- }
- if parser.mark.column == 0 &&
- ((parser.buffer[parser.buffer_pos+0] == '-' &&
- parser.buffer[parser.buffer_pos+1] == '-' &&
- parser.buffer[parser.buffer_pos+2] == '-') ||
- (parser.buffer[parser.buffer_pos+0] == '.' &&
- parser.buffer[parser.buffer_pos+1] == '.' &&
- parser.buffer[parser.buffer_pos+2] == '.')) &&
- is_blankz(parser.buffer, parser.buffer_pos+3) {
- break
- }
-
- // Check for a comment.
- if parser.buffer[parser.buffer_pos] == '#' {
- break
- }
-
- // Consume non-blank characters.
- for !is_blankz(parser.buffer, parser.buffer_pos) {
-
- // Check for 'x:x' in the flow context. TODO: Fix the test "spec-08-13".
- if parser.flow_level > 0 &&
- parser.buffer[parser.buffer_pos] == ':' &&
- !is_blankz(parser.buffer, parser.buffer_pos+1) {
- yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
- start_mark, "found unexpected ':'")
- return false
- }
-
- // Check for indicators that may end a plain scalar.
- if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) ||
- (parser.flow_level > 0 &&
- (parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == ':' ||
- parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' ||
- parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
- parser.buffer[parser.buffer_pos] == '}')) {
- break
- }
-
- // Check if we need to join whitespaces and breaks.
- if leading_blanks || len(whitespaces) > 0 {
- if leading_blanks {
- // Do we need to fold line breaks?
- if leading_break[0] == '\n' {
- if len(trailing_breaks) == 0 {
- s = append(s, ' ')
- } else {
- s = append(s, trailing_breaks...)
- }
- } else {
- s = append(s, leading_break...)
- s = append(s, trailing_breaks...)
- }
- trailing_breaks = trailing_breaks[:0]
- leading_break = leading_break[:0]
- leading_blanks = false
- } else {
- s = append(s, whitespaces...)
- whitespaces = whitespaces[:0]
- }
- }
-
- // Copy the character.
- s = read(parser, s)
-
- end_mark = parser.mark
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
- }
-
- // Is it the end?
- if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) {
- break
- }
-
- // Consume blank characters.
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
-
- for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
- if is_blank(parser.buffer, parser.buffer_pos) {
-
- // Check for tab character that abuse intendation.
- if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) {
- yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
- start_mark, "found a tab character that violate intendation")
- return false
- }
-
- // Consume a space or a tab character.
- if !leading_blanks {
- whitespaces = read(parser, whitespaces)
- } else {
- skip(parser)
- }
- } else {
- if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
- return false
- }
-
- // Check if it is a first line break.
- if !leading_blanks {
- whitespaces = whitespaces[:0]
- leading_break = read_line(parser, leading_break)
- leading_blanks = true
- } else {
- trailing_breaks = read_line(parser, trailing_breaks)
- }
- }
- if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
- return false
- }
- }
-
- // Check intendation level.
- if parser.flow_level == 0 && parser.mark.column < indent {
- break
- }
- }
-
- // Create a token.
- *token = yaml_token_t{
- typ: yaml_SCALAR_TOKEN,
- start_mark: start_mark,
- end_mark: end_mark,
- value: s,
- style: yaml_PLAIN_SCALAR_STYLE,
- }
-
- // Note that we change the 'simple_key_allowed' flag.
- if leading_blanks {
- parser.simple_key_allowed = true
- }
- return true
-}
diff --git a/sorter.go b/sorter.go
deleted file mode 100644
index 5958822..0000000
--- a/sorter.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package yaml
-
-import (
- "reflect"
- "unicode"
-)
-
-type keyList []reflect.Value
-
-func (l keyList) Len() int { return len(l) }
-func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
-func (l keyList) Less(i, j int) bool {
- a := l[i]
- b := l[j]
- ak := a.Kind()
- bk := b.Kind()
- for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
- a = a.Elem()
- ak = a.Kind()
- }
- for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
- b = b.Elem()
- bk = b.Kind()
- }
- af, aok := keyFloat(a)
- bf, bok := keyFloat(b)
- if aok && bok {
- if af != bf {
- return af < bf
- }
- if ak != bk {
- return ak < bk
- }
- return numLess(a, b)
- }
- if ak != reflect.String || bk != reflect.String {
- return ak < bk
- }
- ar, br := []rune(a.String()), []rune(b.String())
- for i := 0; i < len(ar) && i < len(br); i++ {
- if ar[i] == br[i] {
- continue
- }
- al := unicode.IsLetter(ar[i])
- bl := unicode.IsLetter(br[i])
- if al && bl {
- return ar[i] < br[i]
- }
- if al || bl {
- return bl
- }
- var ai, bi int
- var an, bn int64
- for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
- an = an*10 + int64(ar[ai]-'0')
- }
- for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
- bn = bn*10 + int64(br[bi]-'0')
- }
- if an != bn {
- return an < bn
- }
- if ai != bi {
- return ai < bi
- }
- return ar[i] < br[i]
- }
- return len(ar) < len(br)
-}
-
-// keyFloat returns a float value for v if it is a number/bool
-// and whether it is a number/bool or not.
-func keyFloat(v reflect.Value) (f float64, ok bool) {
- switch v.Kind() {
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return float64(v.Int()), true
- case reflect.Float32, reflect.Float64:
- return v.Float(), true
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return float64(v.Uint()), true
- case reflect.Bool:
- if v.Bool() {
- return 1, true
- }
- return 0, true
- }
- return 0, false
-}
-
-// numLess returns whether a < b.
-// a and b must necessarily have the same kind.
-func numLess(a, b reflect.Value) bool {
- switch a.Kind() {
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return a.Int() < b.Int()
- case reflect.Float32, reflect.Float64:
- return a.Float() < b.Float()
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return a.Uint() < b.Uint()
- case reflect.Bool:
- return !a.Bool() && b.Bool()
- }
- panic("not a number")
-}
diff --git a/suite_test.go b/suite_test.go
deleted file mode 100644
index 111d756..0000000
--- a/suite_test.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package yaml_test
-
-import (
- . "launchpad.net/gocheck"
- "testing"
-)
-
-func Test(t *testing.T) { TestingT(t) }
-
-type S struct{}
-
-var _ = Suite(&S{})
diff --git a/writerc.go b/writerc.go
deleted file mode 100644
index 190362f..0000000
--- a/writerc.go
+++ /dev/null
@@ -1,89 +0,0 @@
-package yaml
-
-// Set the writer error and return false.
-func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
- emitter.error = yaml_WRITER_ERROR
- emitter.problem = problem
- return false
-}
-
-// Flush the output buffer.
-func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
- if emitter.write_handler == nil {
- panic("write handler not set")
- }
-
- // Check if the buffer is empty.
- if emitter.buffer_pos == 0 {
- return true
- }
-
- // If the output encoding is UTF-8, we don't need to recode the buffer.
- if emitter.encoding == yaml_UTF8_ENCODING {
- if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
- return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
- }
- emitter.buffer_pos = 0
- return true
- }
-
- // Recode the buffer into the raw buffer.
- var low, high int
- if emitter.encoding == yaml_UTF16LE_ENCODING {
- low, high = 0, 1
- } else {
- high, low = 1, 0
- }
-
- pos := 0
- for pos < emitter.buffer_pos {
- // See the "reader.c" code for more details on UTF-8 encoding. Note
- // that we assume that the buffer contains a valid UTF-8 sequence.
-
- // Read the next UTF-8 character.
- octet := emitter.buffer[pos]
-
- var w int
- var value rune
- switch {
- case octet&0x80 == 0x00:
- w, value = 1, rune(octet&0x7F)
- case octet&0xE0 == 0xC0:
- w, value = 2, rune(octet&0x1F)
- case octet&0xF0 == 0xE0:
- w, value = 3, rune(octet&0x0F)
- case octet&0xF8 == 0xF0:
- w, value = 4, rune(octet&0x07)
- }
- for k := 1; k < w; k++ {
- octet = emitter.buffer[pos+k]
- value = (value << 6) + (rune(octet) & 0x3F)
- }
- pos += w
-
- // Write the character.
- if value < 0x10000 {
- var b [2]byte
- b[high] = byte(value >> 8)
- b[low] = byte(value & 0xFF)
- emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
- } else {
- // Write the character using a surrogate pair (check "reader.c").
- var b [4]byte
- value -= 0x10000
- b[high] = byte(0xD8 + (value >> 18))
- b[low] = byte((value >> 10) & 0xFF)
- b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
- b[low+2] = byte(value & 0xFF)
- emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
- }
- }
-
- // Write the raw buffer.
- if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
- return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
- }
- emitter.buffer_pos = 0
- emitter.raw_buffer = emitter.raw_buffer[:0]
- return true
-}
diff --git a/yaml.go b/yaml.go
deleted file mode 100644
index 810a74c..0000000
--- a/yaml.go
+++ /dev/null
@@ -1,306 +0,0 @@
-// Package yaml implements YAML support for the Go language.
-//
-// Source code and other details for the project are available at GitHub:
-//
-// https://github.com/go-yaml/yaml
-//
-package yaml
-
-import (
- "errors"
- "fmt"
- "reflect"
- "runtime"
- "strings"
- "sync"
-)
-
-func handleErr(err *error) {
- if r := recover(); r != nil {
- if _, ok := r.(runtime.Error); ok {
- panic(r)
- } else if _, ok := r.(*reflect.ValueError); ok {
- panic(r)
- } else if _, ok := r.(externalPanic); ok {
- panic(r)
- } else if s, ok := r.(string); ok {
- *err = errors.New("YAML error: " + s)
- } else if e, ok := r.(error); ok {
- *err = e
- } else {
- panic(r)
- }
- }
-}
-
-// The Setter interface may be implemented by types to do their own custom
-// unmarshalling of YAML values, rather than being implicitly assigned by
-// the yaml package machinery. If setting the value works, the method should
-// return true. If it returns false, the value is considered unsupported
-// and is omitted from maps and slices.
-type Setter interface {
- SetYAML(tag string, value interface{}) bool
-}
-
-// The Setter interface is implemented by types to do their own custom
-// marshalling into a YAML tag and value.
-type Getter interface {
- GetYAML() (tag string, value interface{})
-}
-
-// Unmarshal decodes the first document found within the in byte slice
-// and assigns decoded values into the out value.
-//
-// Maps and pointers (to a struct, string, int, etc) are accepted as out
-// values. If an internal pointer within a struct is not initialized,
-// the yaml package will initialize it if necessary for unmarshalling
-// the provided data. The out parameter must not be nil.
-//
-// The type of the decoded values and the type of out will be considered,
-// and Unmarshal will do the best possible job to unmarshal values
-// appropriately. It is NOT considered an error, though, to skip values
-// because they are not available in the decoded YAML, or if they are not
-// compatible with the out value. To ensure something was properly
-// unmarshaled use a map or compare against the previous value for the
-// field (usually the zero value).
-//
-// Struct fields are only unmarshalled if they are exported (have an
-// upper case first letter), and are unmarshalled using the field name
-// lowercased as the default key. Custom keys may be defined via the
-// "yaml" name in the field tag: the content preceding the first comma
-// is used as the key, and the following comma-separated options are
-// used to tweak the marshalling process (see Marshal).
-// Conflicting names result in a runtime error.
-//
-// For example:
-//
-// type T struct {
-// F int `yaml:"a,omitempty"`
-// B int
-// }
-// var T t
-// yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
-//
-// See the documentation of Marshal for the format of tags and a list of
-// supported tag options.
-//
-func Unmarshal(in []byte, out interface{}) (err error) {
- defer handleErr(&err)
- d := newDecoder()
- p := newParser(in)
- defer p.destroy()
- node := p.parse()
- if node != nil {
- d.unmarshal(node, reflect.ValueOf(out))
- }
- return nil
-}
-
-// Marshal serializes the value provided into a YAML document. The structure
-// of the generated document will reflect the structure of the value itself.
-// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
-//
-// Struct fields are only unmarshalled if they are exported (have an upper case
-// first letter), and are unmarshalled using the field name lowercased as the
-// default key. Custom keys may be defined via the "yaml" name in the field
-// tag: the content preceding the first comma is used as the key, and the
-// following comma-separated options are used to tweak the marshalling process.
-// Conflicting names result in a runtime error.
-//
-// The field tag format accepted is:
-//
-// `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
-//
-// The following flags are currently supported:
-//
-// omitempty Only include the field if it's not set to the zero
-// value for the type or to empty slices or maps.
-// Does not apply to zero valued structs.
-//
-// flow Marshal using a flow style (useful for structs,
-// sequences and maps.
-//
-// inline Inline the struct it's applied to, so its fields
-// are processed as if they were part of the outer
-// struct.
-//
-// In addition, if the key is "-", the field is ignored.
-//
-// For example:
-//
-// type T struct {
-// F int "a,omitempty"
-// B int
-// }
-// yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
-// yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
-//
-func Marshal(in interface{}) (out []byte, err error) {
- defer handleErr(&err)
- e := newEncoder()
- defer e.destroy()
- e.marshal("", reflect.ValueOf(in))
- e.finish()
- out = e.out
- return
-}
-
-// --------------------------------------------------------------------------
-// Maintain a mapping of keys to structure field indexes
-
-// The code in this section was copied from mgo/bson.
-
-// structInfo holds details for the serialization of fields of
-// a given struct.
-type structInfo struct {
- FieldsMap map[string]fieldInfo
- FieldsList []fieldInfo
-
- // InlineMap is the number of the field in the struct that
- // contains an ,inline map, or -1 if there's none.
- InlineMap int
-}
-
-type fieldInfo struct {
- Key string
- Num int
- OmitEmpty bool
- Flow bool
-
- // Inline holds the field index if the field is part of an inlined struct.
- Inline []int
-}
-
-var structMap = make(map[reflect.Type]*structInfo)
-var fieldMapMutex sync.RWMutex
-
-type externalPanic string
-
-func (e externalPanic) String() string {
- return string(e)
-}
-
-func getStructInfo(st reflect.Type) (*structInfo, error) {
- fieldMapMutex.RLock()
- sinfo, found := structMap[st]
- fieldMapMutex.RUnlock()
- if found {
- return sinfo, nil
- }
-
- n := st.NumField()
- fieldsMap := make(map[string]fieldInfo)
- fieldsList := make([]fieldInfo, 0, n)
- inlineMap := -1
- for i := 0; i != n; i++ {
- field := st.Field(i)
- if field.PkgPath != "" {
- continue // Private field
- }
-
- info := fieldInfo{Num: i}
-
- tag := field.Tag.Get("yaml")
- if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
- tag = string(field.Tag)
- }
- if tag == "-" {
- continue
- }
-
- inline := false
- fields := strings.Split(tag, ",")
- if len(fields) > 1 {
- for _, flag := range fields[1:] {
- switch flag {
- case "omitempty":
- info.OmitEmpty = true
- case "flow":
- info.Flow = true
- case "inline":
- inline = true
- default:
- msg := fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st)
- panic(externalPanic(msg))
- }
- }
- tag = fields[0]
- }
-
- if inline {
- switch field.Type.Kind() {
- //case reflect.Map:
- // if inlineMap >= 0 {
- // return nil, errors.New("Multiple ,inline maps in struct " + st.String())
- // }
- // if field.Type.Key() != reflect.TypeOf("") {
- // return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
- // }
- // inlineMap = info.Num
- case reflect.Struct:
- sinfo, err := getStructInfo(field.Type)
- if err != nil {
- return nil, err
- }
- for _, finfo := range sinfo.FieldsList {
- if _, found := fieldsMap[finfo.Key]; found {
- msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
- return nil, errors.New(msg)
- }
- if finfo.Inline == nil {
- finfo.Inline = []int{i, finfo.Num}
- } else {
- finfo.Inline = append([]int{i}, finfo.Inline...)
- }
- fieldsMap[finfo.Key] = finfo
- fieldsList = append(fieldsList, finfo)
- }
- default:
- //panic("Option ,inline needs a struct value or map field")
- panic("Option ,inline needs a struct value field")
- }
- continue
- }
-
- if tag != "" {
- info.Key = tag
- } else {
- info.Key = strings.ToLower(field.Name)
- }
-
- if _, found = fieldsMap[info.Key]; found {
- msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
- return nil, errors.New(msg)
- }
-
- fieldsList = append(fieldsList, info)
- fieldsMap[info.Key] = info
- }
-
- sinfo = &structInfo{fieldsMap, fieldsList, inlineMap}
-
- fieldMapMutex.Lock()
- structMap[st] = sinfo
- fieldMapMutex.Unlock()
- return sinfo, nil
-}
-
-func isZero(v reflect.Value) bool {
- switch v.Kind() {
- case reflect.String:
- return len(v.String()) == 0
- case reflect.Interface, reflect.Ptr:
- return v.IsNil()
- case reflect.Slice:
- return v.Len() == 0
- case reflect.Map:
- return v.Len() == 0
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return v.Int() == 0
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return v.Uint() == 0
- case reflect.Bool:
- return !v.Bool()
- }
- return false
-}
diff --git a/yamlh.go b/yamlh.go
deleted file mode 100644
index 6624d6c..0000000
--- a/yamlh.go
+++ /dev/null
@@ -1,712 +0,0 @@
-package yaml
-
-import (
- "io"
-)
-
-// The version directive data.
-type yaml_version_directive_t struct {
- major int8 // The major version number.
- minor int8 // The minor version number.
-}
-
-// The tag directive data.
-type yaml_tag_directive_t struct {
- handle []byte // The tag handle.
- prefix []byte // The tag prefix.
-}
-
-type yaml_encoding_t int
-
-// The stream encoding.
-const (
- // Let the parser choose the encoding.
- yaml_ANY_ENCODING yaml_encoding_t = iota
-
- yaml_UTF8_ENCODING // The default UTF-8 encoding.
- yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
- yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
-)
-
-type yaml_break_t int
-
-// Line break types.
-const (
- // Let the parser choose the break type.
- yaml_ANY_BREAK yaml_break_t = iota
-
- yaml_CR_BREAK // Use CR for line breaks (Mac style).
- yaml_LN_BREAK // Use LN for line breaks (Unix style).
- yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
-)
-
-type yaml_error_type_t int
-
-// Many bad things could happen with the parser and emitter.
-const (
- // No error is produced.
- yaml_NO_ERROR yaml_error_type_t = iota
-
- yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory.
- yaml_READER_ERROR // Cannot read or decode the input stream.
- yaml_SCANNER_ERROR // Cannot scan the input stream.
- yaml_PARSER_ERROR // Cannot parse the input stream.
- yaml_COMPOSER_ERROR // Cannot compose a YAML document.
- yaml_WRITER_ERROR // Cannot write to the output stream.
- yaml_EMITTER_ERROR // Cannot emit a YAML stream.
-)
-
-// The pointer position.
-type yaml_mark_t struct {
- index int // The position index.
- line int // The position line.
- column int // The position column.
-}
-
-// Node Styles
-
-type yaml_style_t int8
-
-type yaml_scalar_style_t yaml_style_t
-
-// Scalar styles.
-const (
- // Let the emitter choose the style.
- yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
-
- yaml_PLAIN_SCALAR_STYLE // The plain scalar style.
- yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
- yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
- yaml_LITERAL_SCALAR_STYLE // The literal scalar style.
- yaml_FOLDED_SCALAR_STYLE // The folded scalar style.
-)
-
-type yaml_sequence_style_t yaml_style_t
-
-// Sequence styles.
-const (
- // Let the emitter choose the style.
- yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
-
- yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
- yaml_FLOW_SEQUENCE_STYLE // The flow sequence style.
-)
-
-type yaml_mapping_style_t yaml_style_t
-
-// Mapping styles.
-const (
- // Let the emitter choose the style.
- yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
-
- yaml_BLOCK_MAPPING_STYLE // The block mapping style.
- yaml_FLOW_MAPPING_STYLE // The flow mapping style.
-)
-
-// Tokens
-
-type yaml_token_type_t int
-
-// Token types.
-const (
- // An empty token.
- yaml_NO_TOKEN yaml_token_type_t = iota
-
- yaml_STREAM_START_TOKEN // A STREAM-START token.
- yaml_STREAM_END_TOKEN // A STREAM-END token.
-
- yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
- yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token.
- yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token.
- yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token.
-
- yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
- yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token.
- yaml_BLOCK_END_TOKEN // A BLOCK-END token.
-
- yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
- yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token.
- yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token.
- yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token.
-
- yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
- yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token.
- yaml_KEY_TOKEN // A KEY token.
- yaml_VALUE_TOKEN // A VALUE token.
-
- yaml_ALIAS_TOKEN // An ALIAS token.
- yaml_ANCHOR_TOKEN // An ANCHOR token.
- yaml_TAG_TOKEN // A TAG token.
- yaml_SCALAR_TOKEN // A SCALAR token.
-)
-
-func (tt yaml_token_type_t) String() string {
- switch tt {
- case yaml_NO_TOKEN:
- return "yaml_NO_TOKEN"
- case yaml_STREAM_START_TOKEN:
- return "yaml_STREAM_START_TOKEN"
- case yaml_STREAM_END_TOKEN:
- return "yaml_STREAM_END_TOKEN"
- case yaml_VERSION_DIRECTIVE_TOKEN:
- return "yaml_VERSION_DIRECTIVE_TOKEN"
- case yaml_TAG_DIRECTIVE_TOKEN:
- return "yaml_TAG_DIRECTIVE_TOKEN"
- case yaml_DOCUMENT_START_TOKEN:
- return "yaml_DOCUMENT_START_TOKEN"
- case yaml_DOCUMENT_END_TOKEN:
- return "yaml_DOCUMENT_END_TOKEN"
- case yaml_BLOCK_SEQUENCE_START_TOKEN:
- return "yaml_BLOCK_SEQUENCE_START_TOKEN"
- case yaml_BLOCK_MAPPING_START_TOKEN:
- return "yaml_BLOCK_MAPPING_START_TOKEN"
- case yaml_BLOCK_END_TOKEN:
- return "yaml_BLOCK_END_TOKEN"
- case yaml_FLOW_SEQUENCE_START_TOKEN:
- return "yaml_FLOW_SEQUENCE_START_TOKEN"
- case yaml_FLOW_SEQUENCE_END_TOKEN:
- return "yaml_FLOW_SEQUENCE_END_TOKEN"
- case yaml_FLOW_MAPPING_START_TOKEN:
- return "yaml_FLOW_MAPPING_START_TOKEN"
- case yaml_FLOW_MAPPING_END_TOKEN:
- return "yaml_FLOW_MAPPING_END_TOKEN"
- case yaml_BLOCK_ENTRY_TOKEN:
- return "yaml_BLOCK_ENTRY_TOKEN"
- case yaml_FLOW_ENTRY_TOKEN:
- return "yaml_FLOW_ENTRY_TOKEN"
- case yaml_KEY_TOKEN:
- return "yaml_KEY_TOKEN"
- case yaml_VALUE_TOKEN:
- return "yaml_VALUE_TOKEN"
- case yaml_ALIAS_TOKEN:
- return "yaml_ALIAS_TOKEN"
- case yaml_ANCHOR_TOKEN:
- return "yaml_ANCHOR_TOKEN"
- case yaml_TAG_TOKEN:
- return "yaml_TAG_TOKEN"
- case yaml_SCALAR_TOKEN:
- return "yaml_SCALAR_TOKEN"
- }
- return "<unknown token>"
-}
-
-// The token structure.
-type yaml_token_t struct {
- // The token type.
- typ yaml_token_type_t
-
- // The start/end of the token.
- start_mark, end_mark yaml_mark_t
-
- // The stream encoding (for yaml_STREAM_START_TOKEN).
- encoding yaml_encoding_t
-
- // The alias/anchor/scalar value or tag/tag directive handle
- // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
- value []byte
-
- // The tag suffix (for yaml_TAG_TOKEN).
- suffix []byte
-
- // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
- prefix []byte
-
- // The scalar style (for yaml_SCALAR_TOKEN).
- style yaml_scalar_style_t
-
- // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
- major, minor int8
-}
-
-// Events
-
-type yaml_event_type_t int8
-
-// Event types.
-const (
- // An empty event.
- yaml_NO_EVENT yaml_event_type_t = iota
-
- yaml_STREAM_START_EVENT // A STREAM-START event.
- yaml_STREAM_END_EVENT // A STREAM-END event.
- yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
- yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event.
- yaml_ALIAS_EVENT // An ALIAS event.
- yaml_SCALAR_EVENT // A SCALAR event.
- yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
- yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event.
- yaml_MAPPING_START_EVENT // A MAPPING-START event.
- yaml_MAPPING_END_EVENT // A MAPPING-END event.
-)
-
-// The event structure.
-type yaml_event_t struct {
-
- // The event type.
- typ yaml_event_type_t
-
- // The start and end of the event.
- start_mark, end_mark yaml_mark_t
-
- // The document encoding (for yaml_STREAM_START_EVENT).
- encoding yaml_encoding_t
-
- // The version directive (for yaml_DOCUMENT_START_EVENT).
- version_directive *yaml_version_directive_t
-
- // The list of tag directives (for yaml_DOCUMENT_START_EVENT).
- tag_directives []yaml_tag_directive_t
-
- // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
- anchor []byte
-
- // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
- tag []byte
-
- // The scalar value (for yaml_SCALAR_EVENT).
- value []byte
-
- // Is the document start/end indicator implicit, or the tag optional?
- // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
- implicit bool
-
- // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
- quoted_implicit bool
-
- // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
- style yaml_style_t
-}
-
-func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) }
-func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
-func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) }
-
-// Nodes
-
-const (
- yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null.
- yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false.
- yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values.
- yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values.
- yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values.
- yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
-
- yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
- yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
-
- yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str.
- yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
- yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map.
-)
-
-type yaml_node_type_t int
-
-// Node types.
-const (
- // An empty node.
- yaml_NO_NODE yaml_node_type_t = iota
-
- yaml_SCALAR_NODE // A scalar node.
- yaml_SEQUENCE_NODE // A sequence node.
- yaml_MAPPING_NODE // A mapping node.
-)
-
-// An element of a sequence node.
-type yaml_node_item_t int
-
-// An element of a mapping node.
-type yaml_node_pair_t struct {
- key int // The key of the element.
- value int // The value of the element.
-}
-
-// The node structure.
-type yaml_node_t struct {
- typ yaml_node_type_t // The node type.
- tag []byte // The node tag.
-
- // The node data.
-
- // The scalar parameters (for yaml_SCALAR_NODE).
- scalar struct {
- value []byte // The scalar value.
- length int // The length of the scalar value.
- style yaml_scalar_style_t // The scalar style.
- }
-
- // The sequence parameters (for YAML_SEQUENCE_NODE).
- sequence struct {
- items_data []yaml_node_item_t // The stack of sequence items.
- style yaml_sequence_style_t // The sequence style.
- }
-
- // The mapping parameters (for yaml_MAPPING_NODE).
- mapping struct {
- pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value).
- pairs_start *yaml_node_pair_t // The beginning of the stack.
- pairs_end *yaml_node_pair_t // The end of the stack.
- pairs_top *yaml_node_pair_t // The top of the stack.
- style yaml_mapping_style_t // The mapping style.
- }
-
- start_mark yaml_mark_t // The beginning of the node.
- end_mark yaml_mark_t // The end of the node.
-
-}
-
-// The document structure.
-type yaml_document_t struct {
-
- // The document nodes.
- nodes []yaml_node_t
-
- // The version directive.
- version_directive *yaml_version_directive_t
-
- // The list of tag directives.
- tag_directives_data []yaml_tag_directive_t
- tag_directives_start int // The beginning of the tag directives list.
- tag_directives_end int // The end of the tag directives list.
-
- start_implicit int // Is the document start indicator implicit?
- end_implicit int // Is the document end indicator implicit?
-
- // The start/end of the document.
- start_mark, end_mark yaml_mark_t
-}
-
-// The prototype of a read handler.
-//
-// The read handler is called when the parser needs to read more bytes from the
-// source. The handler should write not more than size bytes to the buffer.
-// The number of written bytes should be set to the size_read variable.
-//
-// [in,out] data A pointer to an application data specified by
-// yaml_parser_set_input().
-// [out] buffer The buffer to write the data from the source.
-// [in] size The size of the buffer.
-// [out] size_read The actual number of bytes read from the source.
-//
-// On success, the handler should return 1. If the handler failed,
-// the returned value should be 0. On EOF, the handler should set the
-// size_read to 0 and return 1.
-type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
-
-// This structure holds information about a potential simple key.
-type yaml_simple_key_t struct {
- possible bool // Is a simple key possible?
- required bool // Is a simple key required?
- token_number int // The number of the token.
- mark yaml_mark_t // The position mark.
-}
-
-// The states of the parser.
-type yaml_parser_state_t int
-
-const (
- yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
-
- yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document.
- yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START.
- yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document.
- yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END.
- yaml_PARSE_BLOCK_NODE_STATE // Expect a block node.
- yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
- yaml_PARSE_FLOW_NODE_STATE // Expect a flow node.
- yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence.
- yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence.
- yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence.
- yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
- yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key.
- yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value.
- yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence.
- yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence.
- yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping.
- yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
- yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry.
- yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
- yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
- yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
- yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping.
- yaml_PARSE_END_STATE // Expect nothing.
-)
-
-func (ps yaml_parser_state_t) String() string {
- switch ps {
- case yaml_PARSE_STREAM_START_STATE:
- return "yaml_PARSE_STREAM_START_STATE"
- case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
- return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
- case yaml_PARSE_DOCUMENT_START_STATE:
- return "yaml_PARSE_DOCUMENT_START_STATE"
- case yaml_PARSE_DOCUMENT_CONTENT_STATE:
- return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
- case yaml_PARSE_DOCUMENT_END_STATE:
- return "yaml_PARSE_DOCUMENT_END_STATE"
- case yaml_PARSE_BLOCK_NODE_STATE:
- return "yaml_PARSE_BLOCK_NODE_STATE"
- case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
- return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
- case yaml_PARSE_FLOW_NODE_STATE:
- return "yaml_PARSE_FLOW_NODE_STATE"
- case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
- return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
- case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
- return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
- case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
- return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
- case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
- return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
- case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
- return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
- case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
- return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
- case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
- return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
- return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
- return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
- return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
- case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
- return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
- case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
- return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
- case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
- return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
- case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
- return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
- case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
- return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
- case yaml_PARSE_END_STATE:
- return "yaml_PARSE_END_STATE"
- }
- return "<unknown parser state>"
-}
-
-// This structure holds aliases data.
-type yaml_alias_data_t struct {
- anchor []byte // The anchor.
- index int // The node id.
- mark yaml_mark_t // The anchor mark.
-}
-
-// The parser structure.
-//
-// All members are internal. Manage the structure using the
-// yaml_parser_ family of functions.
-type yaml_parser_t struct {
-
- // Error handling
-
- error yaml_error_type_t // Error type.
-
- problem string // Error description.
-
- // The byte about which the problem occured.
- problem_offset int
- problem_value int
- problem_mark yaml_mark_t
-
- // The error context.
- context string
- context_mark yaml_mark_t
-
- // Reader stuff
-
- read_handler yaml_read_handler_t // Read handler.
-
- input_file io.Reader // File input data.
- input []byte // String input data.
- input_pos int
-
- eof bool // EOF flag
-
- buffer []byte // The working buffer.
- buffer_pos int // The current position of the buffer.
-
- unread int // The number of unread characters in the buffer.
-
- raw_buffer []byte // The raw buffer.
- raw_buffer_pos int // The current position of the buffer.
-
- encoding yaml_encoding_t // The input encoding.
-
- offset int // The offset of the current position (in bytes).
- mark yaml_mark_t // The mark of the current position.
-
- // Scanner stuff
-
- stream_start_produced bool // Have we started to scan the input stream?
- stream_end_produced bool // Have we reached the end of the input stream?
-
- flow_level int // The number of unclosed '[' and '{' indicators.
-
- tokens []yaml_token_t // The tokens queue.
- tokens_head int // The head of the tokens queue.
- tokens_parsed int // The number of tokens fetched from the queue.
- token_available bool // Does the tokens queue contain a token ready for dequeueing.
-
- indent int // The current indentation level.
- indents []int // The indentation levels stack.
-
- simple_key_allowed bool // May a simple key occur at the current position?
- simple_keys []yaml_simple_key_t // The stack of simple keys.
-
- // Parser stuff
-
- state yaml_parser_state_t // The current parser state.
- states []yaml_parser_state_t // The parser states stack.
- marks []yaml_mark_t // The stack of marks.
- tag_directives []yaml_tag_directive_t // The list of TAG directives.
-
- // Dumper stuff
-
- aliases []yaml_alias_data_t // The alias data.
-
- document *yaml_document_t // The currently parsed document.
-}
-
-// Emitter Definitions
-
-// The prototype of a write handler.
-//
-// The write handler is called when the emitter needs to flush the accumulated
-// characters to the output. The handler should write @a size bytes of the
-// @a buffer to the output.
-//
-// @param[in,out] data A pointer to an application data specified by
-// yaml_emitter_set_output().
-// @param[in] buffer The buffer with bytes to be written.
-// @param[in] size The size of the buffer.
-//
-// @returns On success, the handler should return @c 1. If the handler failed,
-// the returned value should be @c 0.
-//
-type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
-
-type yaml_emitter_state_t int
-
-// The emitter states.
-const (
- // Expect STREAM-START.
- yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
-
- yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END.
- yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END.
- yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document.
- yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END.
- yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence.
- yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence.
- yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
- yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
- yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping.
- yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
- yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence.
- yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence.
- yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
- yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping.
- yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
- yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping.
- yaml_EMIT_END_STATE // Expect nothing.
-)
-
-// The emitter structure.
-//
-// All members are internal. Manage the structure using the @c yaml_emitter_
-// family of functions.
-type yaml_emitter_t struct {
-
- // Error handling
-
- error yaml_error_type_t // Error type.
- problem string // Error description.
-
- // Writer stuff
-
- write_handler yaml_write_handler_t // Write handler.
-
- output_buffer *[]byte // String output data.
- output_file io.Writer // File output data.
-
- buffer []byte // The working buffer.
- buffer_pos int // The current position of the buffer.
-
- raw_buffer []byte // The raw buffer.
- raw_buffer_pos int // The current position of the buffer.
-
- encoding yaml_encoding_t // The stream encoding.
-
- // Emitter stuff
-
- canonical bool // If the output is in the canonical style?
- best_indent int // The number of indentation spaces.
- best_width int // The preferred width of the output lines.
- unicode bool // Allow unescaped non-ASCII characters?
- line_break yaml_break_t // The preferred line break.
-
- state yaml_emitter_state_t // The current emitter state.
- states []yaml_emitter_state_t // The stack of states.
-
- events []yaml_event_t // The event queue.
- events_head int // The head of the event queue.
-
- indents []int // The stack of indentation levels.
-
- tag_directives []yaml_tag_directive_t // The list of tag directives.
-
- indent int // The current indentation level.
-
- flow_level int // The current flow level.
-
- root_context bool // Is it the document root context?
- sequence_context bool // Is it a sequence context?
- mapping_context bool // Is it a mapping context?
- simple_key_context bool // Is it a simple mapping key context?
-
- line int // The current line.
- column int // The current column.
- whitespace bool // If the last character was a whitespace?
- indention bool // If the last character was an indentation character (' ', '-', '?', ':')?
- open_ended bool // If an explicit document end is required?
-
- // Anchor analysis.
- anchor_data struct {
- anchor []byte // The anchor value.
- alias bool // Is it an alias?
- }
-
- // Tag analysis.
- tag_data struct {
- handle []byte // The tag handle.
- suffix []byte // The tag suffix.
- }
-
- // Scalar analysis.
- scalar_data struct {
- value []byte // The scalar value.
- multiline bool // Does the scalar contain line breaks?
- flow_plain_allowed bool // Can the scalar be expessed in the flow plain style?
- block_plain_allowed bool // Can the scalar be expressed in the block plain style?
- single_quoted_allowed bool // Can the scalar be expressed in the single quoted style?
- block_allowed bool // Can the scalar be expressed in the literal or folded styles?
- style yaml_scalar_style_t // The output style.
- }
-
- // Dumper stuff
-
- opened bool // If the stream was already opened?
- closed bool // If the stream was already closed?
-
- // The information associated with the document nodes.
- anchors *struct {
- references int // The number of references.
- anchor int // The anchor id.
- serialized bool // If the node has been emitted?
- }
-
- last_anchor_id int // The last assigned anchor id.
-
- document *yaml_document_t // The currently emitted document.
-}
diff --git a/yamlprivateh.go b/yamlprivateh.go
deleted file mode 100644
index 8110ce3..0000000
--- a/yamlprivateh.go
+++ /dev/null
@@ -1,173 +0,0 @@
-package yaml
-
-const (
- // The size of the input raw buffer.
- input_raw_buffer_size = 512
-
- // The size of the input buffer.
- // It should be possible to decode the whole raw buffer.
- input_buffer_size = input_raw_buffer_size * 3
-
- // The size of the output buffer.
- output_buffer_size = 128
-
- // The size of the output raw buffer.
- // It should be possible to encode the whole output buffer.
- output_raw_buffer_size = (output_buffer_size*2 + 2)
-
- // The size of other stacks and queues.
- initial_stack_size = 16
- initial_queue_size = 16
- initial_string_size = 16
-)
-
-// Check if the character at the specified position is an alphabetical
-// character, a digit, '_', or '-'.
-func is_alpha(b []byte, i int) bool {
- return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
-}
-
-// Check if the character at the specified position is a digit.
-func is_digit(b []byte, i int) bool {
- return b[i] >= '0' && b[i] <= '9'
-}
-
-// Get the value of a digit.
-func as_digit(b []byte, i int) int {
- return int(b[i]) - '0'
-}
-
-// Check if the character at the specified position is a hex-digit.
-func is_hex(b []byte, i int) bool {
- return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
-}
-
-// Get the value of a hex-digit.
-func as_hex(b []byte, i int) int {
- bi := b[i]
- if bi >= 'A' && bi <= 'F' {
- return int(bi) - 'A' + 10
- }
- if bi >= 'a' && bi <= 'f' {
- return int(bi) - 'a' + 10
- }
- return int(bi) - '0'
-}
-
-// Check if the character is ASCII.
-func is_ascii(b []byte, i int) bool {
- return b[i] <= 0x7F
-}
-
-// Check if the character at the start of the buffer can be printed unescaped.
-func is_printable(b []byte, i int) bool {
- return ((b[i] == 0x0A) || // . == #x0A
- (b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
- (b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
- (b[i] > 0xC2 && b[i] < 0xED) ||
- (b[i] == 0xED && b[i+1] < 0xA0) ||
- (b[i] == 0xEE) ||
- (b[i] == 0xEF && // #xE000 <= . <= #xFFFD
- !(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
- !(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
-}
-
-// Check if the character at the specified position is NUL.
-func is_z(b []byte, i int) bool {
- return b[i] == 0x00
-}
-
-// Check if the beginning of the buffer is a BOM.
-func is_bom(b []byte, i int) bool {
- return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
-}
-
-// Check if the character at the specified position is space.
-func is_space(b []byte, i int) bool {
- return b[i] == ' '
-}
-
-// Check if the character at the specified position is tab.
-func is_tab(b []byte, i int) bool {
- return b[i] == '\t'
-}
-
-// Check if the character at the specified position is blank (space or tab).
-func is_blank(b []byte, i int) bool {
- //return is_space(b, i) || is_tab(b, i)
- return b[i] == ' ' || b[i] == '\t'
-}
-
-// Check if the character at the specified position is a line break.
-func is_break(b []byte, i int) bool {
- return (b[i] == '\r' || // CR (#xD)
- b[i] == '\n' || // LF (#xA)
- b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
-}
-
-func is_crlf(b []byte, i int) bool {
- return b[i] == '\r' && b[i+1] == '\n'
-}
-
-// Check if the character is a line break or NUL.
-func is_breakz(b []byte, i int) bool {
- //return is_break(b, i) || is_z(b, i)
- return ( // is_break:
- b[i] == '\r' || // CR (#xD)
- b[i] == '\n' || // LF (#xA)
- b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
- // is_z:
- b[i] == 0)
-}
-
-// Check if the character is a line break, space, or NUL.
-func is_spacez(b []byte, i int) bool {
- //return is_space(b, i) || is_breakz(b, i)
- return ( // is_space:
- b[i] == ' ' ||
- // is_breakz:
- b[i] == '\r' || // CR (#xD)
- b[i] == '\n' || // LF (#xA)
- b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
- b[i] == 0)
-}
-
-// Check if the character is a line break, space, tab, or NUL.
-func is_blankz(b []byte, i int) bool {
- //return is_blank(b, i) || is_breakz(b, i)
- return ( // is_blank:
- b[i] == ' ' || b[i] == '\t' ||
- // is_breakz:
- b[i] == '\r' || // CR (#xD)
- b[i] == '\n' || // LF (#xA)
- b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
- b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
- b[i] == 0)
-}
-
-// Determine the width of the character.
-func width(b byte) int {
- // Don't replace these by a switch without first
- // confirming that it is being inlined.
- if b&0x80 == 0x00 {
- return 1
- }
- if b&0xE0 == 0xC0 {
- return 2
- }
- if b&0xF0 == 0xE0 {
- return 3
- }
- if b&0xF8 == 0xF0 {
- return 4
- }
- return 0
-
-}
