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fuchsia / third_party / libxml2 / refs/tags/LIB_XML_1_6_1 / . / parser.c
blob: 0a0b3965da10b980e9bf5ab395016b82b22bfb18 [file] [log] [blame]
/*
* parser.c : an XML 1.0 non-verifying parser
*
* See Copyright for the status of this software.
*
* Daniel.Veillard@w3.org
*/
#ifdef WIN32
#define HAVE_FCNTL_H
#include <io.h>
#else
#include <config.h>
#endif
#include <stdio.h>
#include <ctype.h>
#include <string.h> /* for memset() only */
#include <stdlib.h>
#include <sys/stat.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#include "tree.h"
#include "parser.h"
#include "entities.h"
#include "encoding.h"
#include "valid.h"
#include "parserInternals.h"
#include "xmlIO.h"
const char *xmlParserVersion = LIBXML_VERSION;
/************************************************************************
* *
* Input handling functions for progressive parsing *
* *
************************************************************************/
/* #define DEBUG_INPUT */
#define INPUT_CHUNK 250
/* we need to keep enough input to show errors in context */
#define LINE_LEN 80
#ifdef DEBUG_INPUT
#define CHECK_BUFFER(in) check_buffer(in)
void check_buffer(xmlParserInputPtr in) {
if (in->base != in->buf->buffer->content) {
fprintf(stderr, "xmlParserInput: base mismatch problem\n");
}
if (in->cur < in->base) {
fprintf(stderr, "xmlParserInput: cur < base problem\n");
}
if (in->cur > in->base + in->buf->buffer->use) {
fprintf(stderr, "xmlParserInput: cur > base + use problem\n");
}
fprintf(stderr,"buffer %x : content %x, cur %d, use %d, size %d\n",
(int) in, (int) in->buf->buffer->content, in->cur - in->base,
in->buf->buffer->use, in->buf->buffer->size);
}
#else
#define CHECK_BUFFER(in)
#endif
/**
* xmlParserInputRead:
* @in: an XML parser input
* @len: an indicative size for the lookahead
*
* This function refresh the input for the parser. It doesn't try to
* preserve pointers to the input buffer, and discard already read data
*
* Returns the number of CHARs read, or -1 in case of error, 0 indicate the
* end of this entity
*/
int
xmlParserInputRead(xmlParserInputPtr in, int len) {
int ret;
int used;
int index;
#ifdef DEBUG_INPUT
fprintf(stderr, "Read\n");
#endif
if (in->buf == NULL) return(-1);
if (in->base == NULL) return(-1);
if (in->cur == NULL) return(-1);
if (in->buf->buffer == NULL) return(-1);
CHECK_BUFFER(in);
used = in->cur - in->buf->buffer->content;
ret = xmlBufferShrink(in->buf->buffer, used);
if (ret > 0) {
in->cur -= ret;
in->consumed += ret;
}
ret = xmlParserInputBufferRead(in->buf, len);
if (in->base != in->buf->buffer->content) {
/*
* the buffer has been realloced
*/
index = in->cur - in->base;
in->base = in->buf->buffer->content;
in->cur = &in->buf->buffer->content[index];
}
CHECK_BUFFER(in);
return(ret);
}
/**
* xmlParserInputGrow:
* @in: an XML parser input
* @len: an indicative size for the lookahead
*
* This function increase the input for the parser. It tries to
* preserve pointers to the input buffer, and keep already read data
*
* Returns the number of CHARs read, or -1 in case of error, 0 indicate the
* end of this entity
*/
int
xmlParserInputGrow(xmlParserInputPtr in, int len) {
int ret;
int index;
#ifdef DEBUG_INPUT
fprintf(stderr, "Grow\n");
#endif
if (in->buf == NULL) return(-1);
if (in->base == NULL) return(-1);
if (in->cur == NULL) return(-1);
if (in->buf->buffer == NULL) return(-1);
CHECK_BUFFER(in);
index = in->cur - in->base;
if (in->buf->buffer->use > index + INPUT_CHUNK) {
CHECK_BUFFER(in);
return(0);
}
ret = xmlParserInputBufferGrow(in->buf, len);
if (in->base != in->buf->buffer->content) {
/*
* the buffer has been realloced
*/
index = in->cur - in->base;
in->base = in->buf->buffer->content;
in->cur = &in->buf->buffer->content[index];
}
CHECK_BUFFER(in);
return(ret);
}
/**
* xmlParserInputShrink:
* @in: an XML parser input
*
* This function removes used input for the parser.
*/
void
xmlParserInputShrink(xmlParserInputPtr in) {
int used;
int ret;
int index;
#ifdef DEBUG_INPUT
fprintf(stderr, "Shrink\n");
#endif
if (in->buf == NULL) return;
if (in->base == NULL) return;
if (in->cur == NULL) return;
if (in->buf->buffer == NULL) return;
CHECK_BUFFER(in);
used = in->cur - in->buf->buffer->content;
if (used > INPUT_CHUNK) {
ret = xmlBufferShrink(in->buf->buffer, used - LINE_LEN);
if (ret > 0) {
in->cur -= ret;
in->consumed += ret;
}
}
CHECK_BUFFER(in);
if (in->buf->buffer->use > INPUT_CHUNK) {
return;
}
xmlParserInputBufferRead(in->buf, 2 * INPUT_CHUNK);
if (in->base != in->buf->buffer->content) {
/*
* the buffer has been realloced
*/
index = in->cur - in->base;
in->base = in->buf->buffer->content;
in->cur = &in->buf->buffer->content[index];
}
CHECK_BUFFER(in);
}
/************************************************************************
* *
* Parser stacks related functions and macros *
* *
************************************************************************/
int xmlSubstituteEntitiesDefaultValue = 0;
int xmlDoValidityCheckingDefaultValue = 0;
/*
* Generic function for accessing stacks in the Parser Context
*/
#define PUSH_AND_POP(type, name) \
extern int name##Push(xmlParserCtxtPtr ctxt, type value) { \
if (ctxt->name##Nr >= ctxt->name##Max) { \
ctxt->name##Max *= 2; \
ctxt->name##Tab = (void *) realloc(ctxt->name##Tab, \
ctxt->name##Max * sizeof(ctxt->name##Tab[0])); \
if (ctxt->name##Tab == NULL) { \
fprintf(stderr, "realloc failed !\n"); \
exit(1); \
} \
} \
ctxt->name##Tab[ctxt->name##Nr] = value; \
ctxt->name = value; \
return(ctxt->name##Nr++); \
} \
extern type name##Pop(xmlParserCtxtPtr ctxt) { \
type ret; \
if (ctxt->name##Nr <= 0) return(0); \
ctxt->name##Nr--; \
if (ctxt->name##Nr > 0) \
ctxt->name = ctxt->name##Tab[ctxt->name##Nr - 1]; \
else \
ctxt->name = NULL; \
ret = ctxt->name##Tab[ctxt->name##Nr]; \
ctxt->name##Tab[ctxt->name##Nr] = 0; \
return(ret); \
} \
PUSH_AND_POP(xmlParserInputPtr, input)
PUSH_AND_POP(xmlNodePtr, node)
/*
* Macros for accessing the content. Those should be used only by the parser,
* and not exported.
*
* Dirty macros, i.e. one need to make assumption on the context to use them
*
* CUR_PTR return the current pointer to the CHAR to be parsed.
* CUR returns the current CHAR value, i.e. a 8 bit value if compiled
* in ISO-Latin or UTF-8, and the current 16 bit value if compiled
* in UNICODE mode. This should be used internally by the parser
* only to compare to ASCII values otherwise it would break when
* running with UTF-8 encoding.
* NXT(n) returns the n'th next CHAR. Same as CUR is should be used only
* to compare on ASCII based substring.
* SKIP(n) Skip n CHAR, and must also be used only to skip ASCII defined
* strings within the parser.
*
* Clean macros, not dependent of an ASCII context, expect UTF-8 encoding
*
* CURRENT Returns the current char value, with the full decoding of
* UTF-8 if we are using this mode. It returns an int.
* NEXT Skip to the next character, this does the proper decoding
* in UTF-8 mode. It also pop-up unfinished entities on the fly.
* COPY(to) copy one char to *to, increment CUR_PTR and to accordingly
*/
#define CUR (ctxt->token ? ctxt->token : (*ctxt->input->cur))
#define SKIP(val) ctxt->input->cur += (val)
#define NXT(val) ctxt->input->cur[(val)]
#define CUR_PTR ctxt->input->cur
#define SHRINK xmlParserInputShrink(ctxt->input); \
if ((*ctxt->input->cur == 0) && \
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) \
xmlPopInput(ctxt)
#define GROW xmlParserInputGrow(ctxt->input, INPUT_CHUNK); \
if ((*ctxt->input->cur == 0) && \
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) \
xmlPopInput(ctxt)
#define SKIP_BLANKS \
do { \
while (IS_BLANK(CUR)) NEXT; \
if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
if (*ctxt->input->cur == '&') xmlParserHandleReference(ctxt); \
} while (IS_BLANK(CUR));
#define CURRENT (*ctxt->input->cur)
#define NEXT { \
if (ctxt->token != 0) ctxt->token = 0; \
else { \
if ((*ctxt->input->cur == 0) && \
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) { \
xmlPopInput(ctxt); \
} else { \
if (*(ctxt->input->cur) == '\n') { \
ctxt->input->line++; ctxt->input->col = 1; \
} else ctxt->input->col++; \
ctxt->input->cur++; \
if (*ctxt->input->cur == 0) \
xmlParserInputGrow(ctxt->input, INPUT_CHUNK); \
} \
if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
if (*ctxt->input->cur == '&') xmlParserHandleReference(ctxt); \
}}
/************************************************************************
* *
* Commodity functions to handle entities processing *
* *
************************************************************************/
/**
* xmlPopInput:
* @ctxt: an XML parser context
*
* xmlPopInput: the current input pointed by ctxt->input came to an end
* pop it and return the next char.
*
* Returns the current CHAR in the parser context
*/
CHAR
xmlPopInput(xmlParserCtxtPtr ctxt) {
if (ctxt->inputNr == 1) return(0); /* End of main Input */
xmlFreeInputStream(inputPop(ctxt));
if ((*ctxt->input->cur == 0) &&
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0))
return(xmlPopInput(ctxt));
return(CUR);
}
/**
* xmlPushInput:
* @ctxt: an XML parser context
* @input: an XML parser input fragment (entity, XML fragment ...).
*
* xmlPushInput: switch to a new input stream which is stacked on top
* of the previous one(s).
*/
void
xmlPushInput(xmlParserCtxtPtr ctxt, xmlParserInputPtr input) {
if (input == NULL) return;
inputPush(ctxt, input);
}
/**
* xmlFreeInputStream:
* @input: an xmlP arserInputPtr
*
* Free up an input stream.
*/
void
xmlFreeInputStream(xmlParserInputPtr input) {
if (input == NULL) return;
if (input->filename != NULL) free((char *) input->filename);
if (input->directory != NULL) free((char *) input->directory);
if ((input->free != NULL) && (input->base != NULL))
input->free((CHAR *) input->base);
if (input->buf != NULL)
xmlFreeParserInputBuffer(input->buf);
memset(input, -1, sizeof(xmlParserInput));
free(input);
}
/**
* xmlNewInputStream:
* @ctxt: an XML parser context
*
* Create a new input stream structure
* Returns the new input stream or NULL
*/
xmlParserInputPtr
xmlNewInputStream(xmlParserCtxtPtr ctxt) {
xmlParserInputPtr input;
input = (xmlParserInputPtr) malloc(sizeof(xmlParserInput));
if (input == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "malloc: couldn't allocate a new input stream\n");
return(NULL);
}
input->filename = NULL;
input->directory = NULL;
input->base = NULL;
input->cur = NULL;
input->buf = NULL;
input->line = 1;
input->col = 1;
input->buf = NULL;
input->free = NULL;
input->consumed = 0;
return(input);
}
/**
* xmlNewEntityInputStream:
* @ctxt: an XML parser context
* @entity: an Entity pointer
*
* Create a new input stream based on an xmlEntityPtr
*
* Returns the new input stream or NULL
*/
xmlParserInputPtr
xmlNewEntityInputStream(xmlParserCtxtPtr ctxt, xmlEntityPtr entity) {
xmlParserInputPtr input;
if (entity == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"internal: xmlNewEntityInputStream entity = NULL\n");
return(NULL);
}
if (entity->content == NULL) {
switch (entity->type) {
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlNewEntityInputStream unparsed entity !\n");
break;
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
return(xmlLoadExternalEntity((char *) entity->SystemID,
(char *) entity->ExternalID, ctxt->input));
case XML_INTERNAL_GENERAL_ENTITY:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Internal entity %s without content !\n", entity->name);
break;
case XML_INTERNAL_PARAMETER_ENTITY:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Internal parameter entity %s without content !\n", entity->name);
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Predefined entity %s without content !\n", entity->name);
break;
}
return(NULL);
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
return(NULL);
}
input->filename = (char *) entity->SystemID; /* TODO !!! char <- CHAR */
input->base = entity->content;
input->cur = entity->content;
return(input);
}
/**
* xmlNewStringInputStream:
* @ctxt: an XML parser context
* @buffer: an memory buffer
*
* Create a new input stream based on a memory buffer.
* Returns the new input stream
*/
xmlParserInputPtr
xmlNewStringInputStream(xmlParserCtxtPtr ctxt, const CHAR *buffer) {
xmlParserInputPtr input;
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"internal: xmlNewStringInputStream string = NULL\n");
return(NULL);
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
return(NULL);
}
input->base = buffer;
input->cur = buffer;
return(input);
}
/**
* xmlNewInputFromFile:
* @ctxt: an XML parser context
* @filename: the filename to use as entity
*
* Create a new input stream based on a file.
*
* Returns the new input stream or NULL in case of error
*/
xmlParserInputPtr
xmlNewInputFromFile(xmlParserCtxtPtr ctxt, const char *filename) {
xmlParserInputBufferPtr buf;
xmlParserInputPtr inputStream;
char *directory = NULL;
if (ctxt == NULL) return(NULL);
buf = xmlParserInputBufferCreateFilename(filename, XML_CHAR_ENCODING_NONE);
if (buf == NULL) {
char name[1024];
if ((ctxt->input != NULL) && (ctxt->input->directory != NULL)) {
#ifdef WIN32
sprintf(name, "%s\\%s", ctxt->input->directory, filename);
#else
sprintf(name, "%s/%s", ctxt->input->directory, filename);
#endif
buf = xmlParserInputBufferCreateFilename(name,
XML_CHAR_ENCODING_NONE);
if (buf != NULL)
directory = strdup(ctxt->input->directory);
}
if ((buf == NULL) && (ctxt->directory != NULL)) {
#ifdef WIN32
sprintf(name, "%s\\%s", ctxt->directory, filename);
#else
sprintf(name, "%s/%s", ctxt->directory, filename);
#endif
buf = xmlParserInputBufferCreateFilename(name,
XML_CHAR_ENCODING_NONE);
if (buf != NULL)
directory = strdup(ctxt->directory);
}
if (buf == NULL)
return(NULL);
}
if (directory == NULL)
directory = xmlParserGetDirectory(filename);
inputStream = xmlNewInputStream(ctxt);
if (inputStream == NULL) {
if (directory != NULL) free((char *) directory);
return(NULL);
}
inputStream->filename = strdup(filename);
inputStream->directory = directory;
inputStream->buf = buf;
inputStream->base = inputStream->buf->buffer->content;
inputStream->cur = inputStream->buf->buffer->content;
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = directory;
return(inputStream);
}
/************************************************************************
* *
* Commodity functions to handle parser contexts *
* *
************************************************************************/
/**
* xmlInitParserCtxt:
* @ctxt: an XML parser context
*
* Initialize a parser context
*/
void
xmlInitParserCtxt(xmlParserCtxtPtr ctxt)
{
xmlSAXHandler *sax;
sax = (xmlSAXHandler *) malloc(sizeof(xmlSAXHandler));
if (sax == NULL) {
fprintf(stderr, "xmlInitParserCtxt: out of memory\n");
}
/* Allocate the Input stack */
ctxt->inputTab = (xmlParserInputPtr *) malloc(5 * sizeof(xmlParserInputPtr));
ctxt->inputNr = 0;
ctxt->inputMax = 5;
ctxt->input = NULL;
ctxt->version = NULL;
ctxt->encoding = NULL;
ctxt->standalone = -1;
ctxt->hasExternalSubset = 0;
ctxt->hasPErefs = 0;
ctxt->html = 0;
ctxt->external = 0;
ctxt->instate = XML_PARSER_PROLOG;
ctxt->token = 0;
ctxt->directory = NULL;
/* Allocate the Node stack */
ctxt->nodeTab = (xmlNodePtr *) malloc(10 * sizeof(xmlNodePtr));
ctxt->nodeNr = 0;
ctxt->nodeMax = 10;
ctxt->node = NULL;
if (sax == NULL) ctxt->sax = &xmlDefaultSAXHandler;
else {
ctxt->sax = sax;
memcpy(sax, &xmlDefaultSAXHandler, sizeof(xmlSAXHandler));
}
ctxt->userData = ctxt;
ctxt->myDoc = NULL;
ctxt->wellFormed = 1;
ctxt->valid = 1;
ctxt->validate = xmlDoValidityCheckingDefaultValue;
ctxt->vctxt.userData = ctxt;
ctxt->vctxt.error = xmlParserValidityError;
ctxt->vctxt.warning = xmlParserValidityWarning;
ctxt->replaceEntities = xmlSubstituteEntitiesDefaultValue;
ctxt->record_info = 0;
xmlInitNodeInfoSeq(&ctxt->node_seq);
}
/**
* xmlFreeParserCtxt:
* @ctxt: an XML parser context
*
* Free all the memory used by a parser context. However the parsed
* document in ctxt->myDoc is not freed.
*/
void
xmlFreeParserCtxt(xmlParserCtxtPtr ctxt)
{
xmlParserInputPtr input;
if (ctxt == NULL) return;
while ((input = inputPop(ctxt)) != NULL) {
xmlFreeInputStream(input);
}
if (ctxt->nodeTab != NULL) free(ctxt->nodeTab);
if (ctxt->inputTab != NULL) free(ctxt->inputTab);
if (ctxt->version != NULL) free((char *) ctxt->version);
if (ctxt->encoding != NULL) free((char *) ctxt->encoding);
if ((ctxt->sax != NULL) && (ctxt->sax != &xmlDefaultSAXHandler))
free(ctxt->sax);
if (ctxt->directory != NULL) free((char *) ctxt->directory);
free(ctxt);
}
/**
* xmlNewParserCtxt:
*
* Allocate and initialize a new parser context.
*
* Returns the xmlParserCtxtPtr or NULL
*/
xmlParserCtxtPtr
xmlNewParserCtxt()
{
xmlParserCtxtPtr ctxt;
ctxt = (xmlParserCtxtPtr) malloc(sizeof(xmlParserCtxt));
if (ctxt == NULL) {
fprintf(stderr, "xmlNewParserCtxt : cannot allocate context\n");
perror("malloc");
return(NULL);
}
xmlInitParserCtxt(ctxt);
return(ctxt);
}
/**
* xmlClearParserCtxt:
* @ctxt: an XML parser context
*
* Clear (release owned resources) and reinitialize a parser context
*/
void
xmlClearParserCtxt(xmlParserCtxtPtr ctxt)
{
xmlClearNodeInfoSeq(&ctxt->node_seq);
xmlInitParserCtxt(ctxt);
}
/************************************************************************
* *
* Commodity functions to handle entities *
* *
************************************************************************/
void xmlParserHandleReference(xmlParserCtxtPtr ctxt);
void xmlParserHandlePEReference(xmlParserCtxtPtr ctxt);
/**
* xmlParseCharRef:
* @ctxt: an XML parser context
*
* parse Reference declarations
*
* [66] CharRef ::= '&#' [0-9]+ ';' |
* '&#x' [0-9a-fA-F]+ ';'
*
* [ WFC: Legal Character ]
* Characters referred to using character references must match the
* production for Char.
*
* Returns the value parsed (as an int)
*/
int
xmlParseCharRef(xmlParserCtxtPtr ctxt) {
int val = 0;
if (ctxt->token != 0) {
val = ctxt->token;
ctxt->token = 0;
return(val);
}
if ((CUR == '&') && (NXT(1) == '#') &&
(NXT(2) == 'x')) {
SKIP(3);
while (CUR != ';') {
if ((CUR >= '0') && (CUR <= '9'))
val = val * 16 + (CUR - '0');
else if ((CUR >= 'a') && (CUR <= 'f'))
val = val * 16 + (CUR - 'a') + 10;
else if ((CUR >= 'A') && (CUR <= 'F'))
val = val * 16 + (CUR - 'A') + 10;
else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid hexadecimal value\n");
ctxt->wellFormed = 0;
val = 0;
break;
}
NEXT;
}
if (CUR == ';')
NEXT;
} else if ((CUR == '&') && (NXT(1) == '#')) {
SKIP(2);
while (CUR != ';') {
if ((CUR >= '0') && (CUR <= '9'))
val = val * 10 + (CUR - '0');
else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid decimal value\n");
ctxt->wellFormed = 0;
val = 0;
break;
}
NEXT;
}
if (CUR == ';')
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid value\n");
ctxt->wellFormed = 0;
}
/*
* [ WFC: Legal Character ]
* Characters referred to using character references must match the
* production for Char.
*/
if (IS_CHAR(val)) {
return(val);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CharRef: invalid CHAR value %d\n",
val);
ctxt->wellFormed = 0;
}
return(0);
}
/**
* xmlParserHandleReference:
* @ctxt: the parser context
*
* [67] Reference ::= EntityRef | CharRef
*
* [68] EntityRef ::= '&' Name ';'
*
* [ WFC: Entity Declared ]
* the Name given in the entity reference must match that in an entity
* declaration, except that well-formed documents need not declare any
* of the following entities: amp, lt, gt, apos, quot.
*
* [ WFC: Parsed Entity ]
* An entity reference must not contain the name of an unparsed entity
*
* [66] CharRef ::= '&#' [0-9]+ ';' |
* '&#x' [0-9a-fA-F]+ ';'
*
* A PEReference may have been detectect in the current input stream
* the handling is done accordingly to
* http://www.w3.org/TR/REC-xml#entproc
*/
void
xmlParserHandleReference(xmlParserCtxtPtr ctxt) {
xmlParserInputPtr input;
CHAR *name;
xmlEntityPtr ent = NULL;
if (ctxt->token != 0) return;
if (CUR != '&') return;
GROW;
if ((CUR == '&') && (NXT(1) == '#')) {
switch(ctxt->instate) {
case XML_PARSER_CDATA_SECTION:
return;
case XML_PARSER_COMMENT:
return;
case XML_PARSER_EOF:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CharRef at EOF\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_PROLOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CharRef in prolog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_EPILOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CharRef in epilog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_DTD:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"CharRef are forbiden in DTDs!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_ENTITY_DECL:
/* we just ignore it there */
return;
case XML_PARSER_ENTITY_VALUE:
/*
* NOTE: in the case of entity values, we don't do the
* substitution here since we need the litteral
* entity value to be able to save the internal
* subset of the document.
* This will be handled by xmlDecodeEntities
*/
return;
case XML_PARSER_CONTENT:
case XML_PARSER_ATTRIBUTE_VALUE:
/* !!! this may not be Ok for UTF-8, multibyte sequence */
ctxt->token = xmlParseCharRef(ctxt);
return;
}
return;
}
switch(ctxt->instate) {
case XML_PARSER_CDATA_SECTION:
return;
case XML_PARSER_COMMENT:
return;
case XML_PARSER_EOF:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Reference at EOF\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_PROLOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Reference in prolog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_EPILOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Reference in epilog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_ENTITY_VALUE:
/*
* NOTE: in the case of entity values, we don't do the
* substitution here since we need the litteral
* entity value to be able to save the internal
* subset of the document.
* This will be handled by xmlDecodeEntities
*/
return;
case XML_PARSER_ATTRIBUTE_VALUE:
/*
* NOTE: in the case of attributes values, we don't do the
* substitution here unless we are in a mode where
* the parser is explicitely asked to substitute
* entities. The SAX callback is called with values
* without entity substitution.
* This will then be handled by xmlDecodeEntities
*/
return;
case XML_PARSER_ENTITY_DECL:
/*
* we just ignore it there
* the substitution will be done once the entity is referenced
*/
return;
case XML_PARSER_DTD:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity references are forbiden in DTDs!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_CONTENT:
return;
}
NEXT;
name = xmlScanName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Entity reference: no name\n");
ctxt->wellFormed = 0;
ctxt->token = '&';
return;
}
if (NXT(xmlStrlen(name)) != ';') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity reference: ';' expected\n");
ctxt->wellFormed = 0;
ctxt->token = '&';
free(name);
return;
}
SKIP(xmlStrlen(name) + 1);
if (ctxt->sax != NULL) {
if (ctxt->sax->getEntity != NULL)
ent = ctxt->sax->getEntity(ctxt->userData, name);
}
/*
* [ WFC: Entity Declared ]
* the Name given in the entity reference must match that in an entity
* declaration, except that well-formed documents need not declare any
* of the following entities: amp, lt, gt, apos, quot.
*/
if (ent == NULL)
ent = xmlGetPredefinedEntity(name);
if (ent == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity reference: entity %s not declared\n",
name);
ctxt->wellFormed = 0;
free(name);
return;
}
/*
* [ WFC: Parsed Entity ]
* An entity reference must not contain the name of an unparsed entity
*/
if (ent->type == XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity reference to unparsed entity %s\n", name);
ctxt->wellFormed = 0;
}
if (ent->type == XML_INTERNAL_PREDEFINED_ENTITY) {
ctxt->token = ent->content[0];
free(name);
return;
}
input = xmlNewEntityInputStream(ctxt, ent);
xmlPushInput(ctxt, input);
free(name);
return;
}
/**
* xmlParserHandlePEReference:
* @ctxt: the parser context
*
* [69] PEReference ::= '%' Name ';'
*
* [ WFC: No Recursion ]
* TODO A parsed entity must not contain a recursive
* reference to itself, either directly or indirectly.
*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an internal DTD
* subset which contains no parameter entity references, or a document
* with "standalone='yes'", ... ... The declaration of a parameter
* entity must precede any reference to it...
*
* [ VC: Entity Declared ]
* In a document with an external subset or external parameter entities
* with "standalone='no'", ... ... The declaration of a parameter entity
* must precede any reference to it...
*
* [ WFC: In DTD ]
* Parameter-entity references may only appear in the DTD.
* NOTE: misleading but this is handled.
*
* A PEReference may have been detected in the current input stream
* the handling is done accordingly to
* http://www.w3.org/TR/REC-xml#entproc
* i.e.
* - Included in literal in entity values
* - Included as Paraemeter Entity reference within DTDs
*/
void
xmlParserHandlePEReference(xmlParserCtxtPtr ctxt) {
CHAR *name;
xmlEntityPtr entity = NULL;
xmlParserInputPtr input;
if (ctxt->token != 0) return;
if (CUR != '%') return;
switch(ctxt->instate) {
case XML_PARSER_CDATA_SECTION:
return;
case XML_PARSER_COMMENT:
return;
case XML_PARSER_EOF:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference at EOF\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_PROLOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference in prolog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_ENTITY_DECL:
case XML_PARSER_CONTENT:
case XML_PARSER_ATTRIBUTE_VALUE:
/* we just ignore it there */
return;
case XML_PARSER_EPILOG:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference in epilog!\n");
ctxt->wellFormed = 0;
return;
case XML_PARSER_ENTITY_VALUE:
/*
* NOTE: in the case of entity values, we don't do the
* substitution here since we need the litteral
* entity value to be able to save the internal
* subset of the document.
* This will be handled by xmlDecodeEntities
*/
return;
case XML_PARSER_DTD:
/*
* [WFC: Well-Formedness Constraint: PEs in Internal Subset]
* In the internal DTD subset, parameter-entity references
* can occur only where markup declarations can occur, not
* within markup declarations.
* In that case this is handled in xmlParseMarkupDecl
*/
if ((ctxt->external == 0) && (ctxt->inputNr == 1))
return;
}
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlHandlePEReference: no name\n");
ctxt->wellFormed = 0;
} else {
if (CUR == ';') {
NEXT;
if ((ctxt->sax != NULL) && (ctxt->sax->getParameterEntity != NULL))
entity = ctxt->sax->getParameterEntity(ctxt->userData, name);
if (entity == NULL) {
/*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an
* internal DTD subset which contains no parameter entity
* references, or a document with "standalone='yes'", ...
* ... The declaration of a parameter entity must precede
* any reference to it...
*/
if ((ctxt->standalone == 1) ||
((ctxt->hasExternalSubset == 0) &&
(ctxt->hasPErefs == 0))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->wellFormed = 0;
} else {
/*
* [ VC: Entity Declared ]
* In a document with an external subset or external
* parameter entities with "standalone='no'", ...
* ... The declaration of a parameter entity must precede
* any reference to it...
*/
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->valid = 0;
}
} else {
if ((entity->type == XML_INTERNAL_PARAMETER_ENTITY) ||
(entity->type == XML_EXTERNAL_PARAMETER_ENTITY)) {
/*
* TODO !!!! handle the extra spaces added before and after
* c.f. http://www.w3.org/TR/REC-xml#as-PE
* TODO !!!! Avoid quote processing in parameters value
* c.f. http://www.w3.org/TR/REC-xml#inliteral
*/
input = xmlNewEntityInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlHandlePEReference: %s is not a parameter entity\n",
name);
ctxt->wellFormed = 0;
}
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlHandlePEReference: expecting ';'\n");
ctxt->wellFormed = 0;
}
free(name);
}
}
/*
* Macro used to grow the current buffer.
*/
#define growBuffer(buffer) { \
buffer##_size *= 2; \
buffer = (CHAR *) realloc(buffer, buffer##_size * sizeof(CHAR)); \
if (buffer == NULL) { \
perror("realloc failed"); \
exit(1); \
} \
}
/**
* xmlDecodeEntities:
* @ctxt: the parser context
* @what: combination of XML_SUBSTITUTE_REF and XML_SUBSTITUTE_PEREF
* @len: the len to decode (in bytes !), -1 for no size limit
* @end: an end marker CHAR, 0 if none
* @end2: an end marker CHAR, 0 if none
* @end3: an end marker CHAR, 0 if none
*
* [67] Reference ::= EntityRef | CharRef
*
* [69] PEReference ::= '%' Name ';'
*
* Returns A newly allocated string with the substitution done. The caller
* must deallocate it !
*/
CHAR *
xmlDecodeEntities(xmlParserCtxtPtr ctxt, int len, int what,
CHAR end, CHAR end2, CHAR end3) {
CHAR *buffer = NULL;
int buffer_size = 0;
CHAR *out = NULL;
CHAR *current = NULL;
xmlEntityPtr ent;
int nbchars = 0;
unsigned int max = (unsigned int) len;
CHAR cur;
/*
* allocate a translation buffer.
*/
buffer_size = 1000;
buffer = (CHAR *) malloc(buffer_size * sizeof(CHAR));
if (buffer == NULL) {
perror("xmlDecodeEntities: malloc failed");
return(NULL);
}
out = buffer;
/*
* Ok loop until we reach one of the ending char or a size limit.
*/
cur = CUR;
while ((nbchars < max) && (cur != end) &&
(cur != end2) && (cur != end3)) {
if (cur == 0) break;
if ((cur == '&') && (NXT(1) == '#')) {
int val = xmlParseCharRef(ctxt);
*out++ = val;
nbchars += 3;
} else if ((cur == '&') && (what & XML_SUBSTITUTE_REF)) {
ent = xmlParseEntityRef(ctxt);
if ((ent != NULL) &&
(ctxt->replaceEntities != 0)) {
current = ent->content;
while (*current != 0) {
*out++ = *current++;
if (out - buffer > buffer_size - 100) {
int index = out - buffer;
growBuffer(buffer);
out = &buffer[index];
}
}
nbchars += 3 + xmlStrlen(ent->name);
} else if (ent != NULL) {
int i = xmlStrlen(ent->name);
const CHAR *cur = ent->name;
nbchars += i + 2;
*out++ = '&';
if (out - buffer > buffer_size - i - 100) {
int index = out - buffer;
growBuffer(buffer);
out = &buffer[index];
}
for (;i > 0;i--)
*out++ = *cur++;
*out++ = ';';
}
} else if (cur == '%' && (what & XML_SUBSTITUTE_PEREF)) {
/*
* a PEReference induce to switch the entity flow,
* we break here to flush the current set of chars
* parsed if any. We will be called back later.
*/
if (nbchars != 0) break;
xmlParsePEReference(ctxt);
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
break;
} else {
/* invalid for UTF-8 , use COPY(out); !!!!!! */
*out++ = cur;
nbchars++;
if (out - buffer > buffer_size - 100) {
int index = out - buffer;
growBuffer(buffer);
out = &buffer[index];
}
NEXT;
}
cur = CUR;
}
*out++ = 0;
return(buffer);
}
/************************************************************************
* *
* Commodity functions to handle encodings *
* *
************************************************************************/
/**
* xmlSwitchEncoding:
* @ctxt: the parser context
* @len: the len of @cur
*
* change the input functions when discovering the character encoding
* of a given entity.
*
*/
void
xmlSwitchEncoding(xmlParserCtxtPtr ctxt, xmlCharEncoding enc)
{
switch (enc) {
case XML_CHAR_ENCODING_ERROR:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "encoding unknown\n");
ctxt->wellFormed = 0;
break;
case XML_CHAR_ENCODING_NONE:
/* let's assume it's UTF-8 without the XML decl */
return;
case XML_CHAR_ENCODING_UTF8:
/* default encoding, no conversion should be needed */
return;
case XML_CHAR_ENCODING_UTF16LE:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding UTF16 little endian not supported\n");
break;
case XML_CHAR_ENCODING_UTF16BE:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding UTF16 big endian not supported\n");
break;
case XML_CHAR_ENCODING_UCS4LE:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding USC4 little endian not supported\n");
break;
case XML_CHAR_ENCODING_UCS4BE:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding USC4 big endian not supported\n");
break;
case XML_CHAR_ENCODING_EBCDIC:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding EBCDIC not supported\n");
break;
case XML_CHAR_ENCODING_UCS4_2143:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding UCS4 2143 not supported\n");
break;
case XML_CHAR_ENCODING_UCS4_3412:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding UCS4 3412 not supported\n");
break;
case XML_CHAR_ENCODING_UCS2:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding UCS2 not supported\n");
break;
case XML_CHAR_ENCODING_8859_1:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_1 ISO Latin 1 not supported\n");
break;
case XML_CHAR_ENCODING_8859_2:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_2 ISO Latin 2 not supported\n");
break;
case XML_CHAR_ENCODING_8859_3:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_3 not supported\n");
break;
case XML_CHAR_ENCODING_8859_4:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_4 not supported\n");
break;
case XML_CHAR_ENCODING_8859_5:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_5 not supported\n");
break;
case XML_CHAR_ENCODING_8859_6:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_6 not supported\n");
break;
case XML_CHAR_ENCODING_8859_7:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_7 not supported\n");
break;
case XML_CHAR_ENCODING_8859_8:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_8 not supported\n");
break;
case XML_CHAR_ENCODING_8859_9:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO_8859_9 not supported\n");
break;
case XML_CHAR_ENCODING_2022_JP:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding ISO-2022-JPnot supported\n");
break;
case XML_CHAR_ENCODING_SHIFT_JIS:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding Shift_JISnot supported\n");
break;
case XML_CHAR_ENCODING_EUC_JP:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"char encoding EUC-JPnot supported\n");
break;
}
}
/************************************************************************
* *
* Commodity functions to handle CHARs *
* *
************************************************************************/
/**
* xmlStrndup:
* @cur: the input CHAR *
* @len: the len of @cur
*
* a strndup for array of CHAR's
*
* Returns a new CHAR * or NULL
*/
CHAR *
xmlStrndup(const CHAR *cur, int len) {
CHAR *ret = malloc((len + 1) * sizeof(CHAR));
if (ret == NULL) {
fprintf(stderr, "malloc of %ld byte failed\n",
(len + 1) * (long)sizeof(CHAR));
return(NULL);
}
memcpy(ret, cur, len * sizeof(CHAR));
ret[len] = 0;
return(ret);
}
/**
* xmlStrdup:
* @cur: the input CHAR *
*
* a strdup for array of CHAR's
*
* Returns a new CHAR * or NULL
*/
CHAR *
xmlStrdup(const CHAR *cur) {
const CHAR *p = cur;
while (IS_CHAR(*p)) p++;
return(xmlStrndup(cur, p - cur));
}
/**
* xmlCharStrndup:
* @cur: the input char *
* @len: the len of @cur
*
* a strndup for char's to CHAR's
*
* Returns a new CHAR * or NULL
*/
CHAR *
xmlCharStrndup(const char *cur, int len) {
int i;
CHAR *ret = malloc((len + 1) * sizeof(CHAR));
if (ret == NULL) {
fprintf(stderr, "malloc of %ld byte failed\n",
(len + 1) * (long)sizeof(CHAR));
return(NULL);
}
for (i = 0;i < len;i++)
ret[i] = (CHAR) cur[i];
ret[len] = 0;
return(ret);
}
/**
* xmlCharStrdup:
* @cur: the input char *
* @len: the len of @cur
*
* a strdup for char's to CHAR's
*
* Returns a new CHAR * or NULL
*/
CHAR *
xmlCharStrdup(const char *cur) {
const char *p = cur;
while (*p != '\0') p++;
return(xmlCharStrndup(cur, p - cur));
}
/**
* xmlStrcmp:
* @str1: the first CHAR *
* @str2: the second CHAR *
*
* a strcmp for CHAR's
*
* Returns the integer result of the comparison
*/
int
xmlStrcmp(const CHAR *str1, const CHAR *str2) {
register int tmp;
do {
tmp = *str1++ - *str2++;
if (tmp != 0) return(tmp);
} while ((*str1 != 0) && (*str2 != 0));
return (*str1 - *str2);
}
/**
* xmlStrncmp:
* @str1: the first CHAR *
* @str2: the second CHAR *
* @len: the max comparison length
*
* a strncmp for CHAR's
*
* Returns the integer result of the comparison
*/
int
xmlStrncmp(const CHAR *str1, const CHAR *str2, int len) {
register int tmp;
if (len <= 0) return(0);
do {
tmp = *str1++ - *str2++;
if (tmp != 0) return(tmp);
len--;
if (len <= 0) return(0);
} while ((*str1 != 0) && (*str2 != 0));
return (*str1 - *str2);
}
/**
* xmlStrchr:
* @str: the CHAR * array
* @val: the CHAR to search
*
* a strchr for CHAR's
*
* Returns the CHAR * for the first occurence or NULL.
*/
const CHAR *
xmlStrchr(const CHAR *str, CHAR val) {
while (*str != 0) {
if (*str == val) return((CHAR *) str);
str++;
}
return(NULL);
}
/**
* xmlStrstr:
* @str: the CHAR * array (haystack)
* @val: the CHAR to search (needle)
*
* a strstr for CHAR's
*
* Returns the CHAR * for the first occurence or NULL.
*/
const CHAR *
xmlStrstr(const CHAR *str, CHAR *val) {
int n;
if (str == NULL) return(NULL);
if (val == NULL) return(NULL);
n = xmlStrlen(val);
if (n == 0) return(str);
while (*str != 0) {
if (*str == *val) {
if (!xmlStrncmp(str, val, n)) return((const CHAR *) str);
}
str++;
}
return(NULL);
}
/**
* xmlStrsub:
* @str: the CHAR * array (haystack)
* @start: the index of the first char (zero based)
* @len: the length of the substring
*
* Extract a substring of a given string
*
* Returns the CHAR * for the first occurence or NULL.
*/
CHAR *
xmlStrsub(const CHAR *str, int start, int len) {
int i;
if (str == NULL) return(NULL);
if (start < 0) return(NULL);
if (len < 0) return(NULL);
for (i = 0;i < start;i++) {
if (*str == 0) return(NULL);
str++;
}
if (*str == 0) return(NULL);
return(xmlStrndup(str, len));
}
/**
* xmlStrlen:
* @str: the CHAR * array
*
* lenght of a CHAR's string
*
* Returns the number of CHAR contained in the ARRAY.
*/
int
xmlStrlen(const CHAR *str) {
int len = 0;
if (str == NULL) return(0);
while (*str != 0) {
str++;
len++;
}
return(len);
}
/**
* xmlStrncat:
* @cur: the original CHAR * array
* @add: the CHAR * array added
* @len: the length of @add
*
* a strncat for array of CHAR's
*
* Returns a new CHAR * containing the concatenated string.
*/
CHAR *
xmlStrncat(CHAR *cur, const CHAR *add, int len) {
int size;
CHAR *ret;
if ((add == NULL) || (len == 0))
return(cur);
if (cur == NULL)
return(xmlStrndup(add, len));
size = xmlStrlen(cur);
ret = realloc(cur, (size + len + 1) * sizeof(CHAR));
if (ret == NULL) {
fprintf(stderr, "xmlStrncat: realloc of %ld byte failed\n",
(size + len + 1) * (long)sizeof(CHAR));
return(cur);
}
memcpy(&ret[size], add, len * sizeof(CHAR));
ret[size + len] = 0;
return(ret);
}
/**
* xmlStrcat:
* @cur: the original CHAR * array
* @add: the CHAR * array added
*
* a strcat for array of CHAR's
*
* Returns a new CHAR * containing the concatenated string.
*/
CHAR *
xmlStrcat(CHAR *cur, const CHAR *add) {
const CHAR *p = add;
if (add == NULL) return(cur);
if (cur == NULL)
return(xmlStrdup(add));
while (IS_CHAR(*p)) p++;
return(xmlStrncat(cur, add, p - add));
}
/************************************************************************
* *
* Commodity functions, cleanup needed ? *
* *
************************************************************************/
/**
* areBlanks:
* @ctxt: an XML parser context
* @str: a CHAR *
* @len: the size of @str
*
* Is this a sequence of blank chars that one can ignore ?
*
* TODO: Whether white space are significant has to be checked accordingly
* to DTD informations if available
*
* Returns 1 if ignorable 0 otherwise.
*/
static int areBlanks(xmlParserCtxtPtr ctxt, const CHAR *str, int len) {
int i, ret;
xmlNodePtr lastChild;
for (i = 0;i < len;i++)
if (!(IS_BLANK(str[i]))) return(0);
if (CUR != '<') return(0);
if (ctxt->node == NULL) return(0);
if (ctxt->myDoc != NULL) {
ret = xmlIsMixedElement(ctxt->myDoc, ctxt->node->name);
if (ret == 0) return(1);
if (ret == 1) return(0);
}
/*
* heuristic
*/
lastChild = xmlGetLastChild(ctxt->node);
if (lastChild == NULL) {
if (ctxt->node->content != NULL) return(0);
} else if (xmlNodeIsText(lastChild))
return(0);
else if ((ctxt->node->childs != NULL) &&
(xmlNodeIsText(ctxt->node->childs)))
return(0);
return(1);
}
/**
* xmlHandleEntity:
* @ctxt: an XML parser context
* @entity: an XML entity pointer.
*
* Default handling of defined entities, when should we define a new input
* stream ? When do we just handle that as a set of chars ?
*
* OBSOLETE: to be removed at some point.
*/
void
xmlHandleEntity(xmlParserCtxtPtr ctxt, xmlEntityPtr entity) {
int len;
xmlParserInputPtr input;
if (entity->content == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlHandleEntity %s: content == NULL\n",
entity->name);
ctxt->wellFormed = 0;
return;
}
len = xmlStrlen(entity->content);
if (len <= 2) goto handle_as_char;
/*
* Redefine its content as an input stream.
*/
input = xmlNewEntityInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
return;
handle_as_char:
/*
* Just handle the content as a set of chars.
*/
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
ctxt->sax->characters(ctxt->userData, entity->content, len);
}
/*
* Forward definition for recusive behaviour.
*/
void xmlParsePEReference(xmlParserCtxtPtr ctxt);
void xmlParseReference(xmlParserCtxtPtr ctxt);
/************************************************************************
* *
* Extra stuff for namespace support *
* Relates to http://www.w3.org/TR/WD-xml-names *
* *
************************************************************************/
/**
* xmlNamespaceParseNCName:
* @ctxt: an XML parser context
*
* parse an XML namespace name.
*
* [NS 3] NCName ::= (Letter | '_') (NCNameChar)*
*
* [NS 4] NCNameChar ::= Letter | Digit | '.' | '-' | '_' |
* CombiningChar | Extender
*
* Returns the namespace name or NULL
*/
CHAR *
xmlNamespaceParseNCName(xmlParserCtxtPtr ctxt) {
CHAR buf[XML_MAX_NAMELEN];
int len = 0;
if (!IS_LETTER(CUR) && (CUR != '_')) return(NULL);
while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) ||
(CUR == '.') || (CUR == '-') ||
(CUR == '_') ||
(IS_COMBINING(CUR)) ||
(IS_EXTENDER(CUR))) {
buf[len++] = CUR;
NEXT;
if (len >= XML_MAX_NAMELEN) {
fprintf(stderr,
"xmlNamespaceParseNCName: reached XML_MAX_NAMELEN limit\n");
while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) ||
(CUR == '.') || (CUR == '-') ||
(CUR == '_') ||
(IS_COMBINING(CUR)) ||
(IS_EXTENDER(CUR)))
NEXT;
break;
}
}
return(xmlStrndup(buf, len));
}
/**
* xmlNamespaceParseQName:
* @ctxt: an XML parser context
* @prefix: a CHAR **
*
* parse an XML qualified name
*
* [NS 5] QName ::= (Prefix ':')? LocalPart
*
* [NS 6] Prefix ::= NCName
*
* [NS 7] LocalPart ::= NCName
*
* Returns the function returns the local part, and prefix is updated
* to get the Prefix if any.
*/
CHAR *
xmlNamespaceParseQName(xmlParserCtxtPtr ctxt, CHAR **prefix) {
CHAR *ret = NULL;
*prefix = NULL;
ret = xmlNamespaceParseNCName(ctxt);
if (CUR == ':') {
*prefix = ret;
NEXT;
ret = xmlNamespaceParseNCName(ctxt);
}
return(ret);
}
/**
* xmlSplitQName:
* @name: an XML parser context
* @prefix: a CHAR **
*
* parse an XML qualified name string
*
* [NS 5] QName ::= (Prefix ':')? LocalPart
*
* [NS 6] Prefix ::= NCName
*
* [NS 7] LocalPart ::= NCName
*
* Returns the function returns the local part, and prefix is updated
* to get the Prefix if any.
*/
CHAR *
xmlSplitQName(const CHAR *name, CHAR **prefix) {
CHAR *ret = NULL;
const CHAR *q;
const CHAR *cur = name;
*prefix = NULL;
/* xml: prefix is not really a namespace */
if ((cur[0] == 'x') && (cur[1] == 'm') &&
(cur[2] == 'l') && (cur[3] == ':'))
return(xmlStrdup(name));
if (!IS_LETTER(*cur) && (*cur != '_')) return(NULL);
q = cur++;
while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) ||
(*cur == '.') || (*cur == '-') ||
(*cur == '_') ||
(IS_COMBINING(*cur)) ||
(IS_EXTENDER(*cur)))
cur++;
ret = xmlStrndup(q, cur - q);
if (*cur == ':') {
cur++;
if (!IS_LETTER(*cur) && (*cur != '_')) return(ret);
*prefix = ret;
q = cur++;
while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) ||
(*cur == '.') || (*cur == '-') ||
(*cur == '_') ||
(IS_COMBINING(*cur)) ||
(IS_EXTENDER(*cur)))
cur++;
ret = xmlStrndup(q, cur - q);
}
return(ret);
}
/**
* xmlNamespaceParseNSDef:
* @ctxt: an XML parser context
*
* parse a namespace prefix declaration
*
* [NS 1] NSDef ::= PrefixDef Eq SystemLiteral
*
* [NS 2] PrefixDef ::= 'xmlns' (':' NCName)?
*
* Returns the namespace name
*/
CHAR *
xmlNamespaceParseNSDef(xmlParserCtxtPtr ctxt) {
CHAR *name = NULL;
if ((CUR == 'x') && (NXT(1) == 'm') &&
(NXT(2) == 'l') && (NXT(3) == 'n') &&
(NXT(4) == 's')) {
SKIP(5);
if (CUR == ':') {
NEXT;
name = xmlNamespaceParseNCName(ctxt);
}
}
return(name);
}
/**
* xmlParseQuotedString:
* @ctxt: an XML parser context
*
* [OLD] Parse and return a string between quotes or doublequotes
* To be removed at next drop of binary compatibility
*
* Returns the string parser or NULL.
*/
CHAR *
xmlParseQuotedString(xmlParserCtxtPtr ctxt) {
CHAR *ret = NULL;
const CHAR *q;
if (CUR == '"') {
NEXT;
q = CUR_PTR;
while (IS_CHAR(CUR) && (CUR != '"')) NEXT;
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed \"%.50s\"\n", q);
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
} else if (CUR == '\''){
NEXT;
q = CUR_PTR;
while (IS_CHAR(CUR) && (CUR != '\'')) NEXT;
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed \"%.50s\"\n", q);
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
}
return(ret);
}
/**
* xmlParseNamespace:
* @ctxt: an XML parser context
*
* [OLD] xmlParseNamespace: parse specific PI '<?namespace ...' constructs.
*
* This is what the older xml-name Working Draft specified, a bunch of
* other stuff may still rely on it, so support is still here as
* if ot was declared on the root of the Tree:-(
*
* To be removed at next drop of binary compatibility
*/
void
xmlParseNamespace(xmlParserCtxtPtr ctxt) {
CHAR *href = NULL;
CHAR *prefix = NULL;
int garbage = 0;
/*
* We just skipped "namespace" or "xml:namespace"
*/
SKIP_BLANKS;
while (IS_CHAR(CUR) && (CUR != '>')) {
/*
* We can have "ns" or "prefix" attributes
* Old encoding as 'href' or 'AS' attributes is still supported
*/
if ((CUR == 'n') && (NXT(1) == 's')) {
garbage = 0;
SKIP(2);
SKIP_BLANKS;
if (CUR != '=') continue;
NEXT;
SKIP_BLANKS;
href = xmlParseQuotedString(ctxt);
SKIP_BLANKS;
} else if ((CUR == 'h') && (NXT(1) == 'r') &&
(NXT(2) == 'e') && (NXT(3) == 'f')) {
garbage = 0;
SKIP(4);
SKIP_BLANKS;
if (CUR != '=') continue;
NEXT;
SKIP_BLANKS;
href = xmlParseQuotedString(ctxt);
SKIP_BLANKS;
} else if ((CUR == 'p') && (NXT(1) == 'r') &&
(NXT(2) == 'e') && (NXT(3) == 'f') &&
(NXT(4) == 'i') && (NXT(5) == 'x')) {
garbage = 0;
SKIP(6);
SKIP_BLANKS;
if (CUR != '=') continue;
NEXT;
SKIP_BLANKS;
prefix = xmlParseQuotedString(ctxt);
SKIP_BLANKS;
} else if ((CUR == 'A') && (NXT(1) == 'S')) {
garbage = 0;
SKIP(2);
SKIP_BLANKS;
if (CUR != '=') continue;
NEXT;
SKIP_BLANKS;
prefix = xmlParseQuotedString(ctxt);
SKIP_BLANKS;
} else if ((CUR == '?') && (NXT(1) == '>')) {
garbage = 0;
NEXT;
} else {
/*
* Found garbage when parsing the namespace
*/
if (!garbage)
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseNamespace found garbage\n");
ctxt->wellFormed = 0;
NEXT;
}
}
MOVETO_ENDTAG(CUR_PTR);
NEXT;
/*
* Register the DTD.
if (href != NULL)
if ((ctxt->sax != NULL) && (ctxt->sax->globalNamespace != NULL))
ctxt->sax->globalNamespace(ctxt->userData, href, prefix);
*/
if (prefix != NULL) free(prefix);
if (href != NULL) free(href);
}
/************************************************************************
* *
* The parser itself *
* Relates to http://www.w3.org/TR/REC-xml *
* *
************************************************************************/
/**
* xmlScanName:
* @ctxt: an XML parser context
*
* Trickery: parse an XML name but without consuming the input flow
* Needed for rollback cases.
*
* [4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' |
* CombiningChar | Extender
*
* [5] Name ::= (Letter | '_' | ':') (NameChar)*
*
* [6] Names ::= Name (S Name)*
*
* Returns the Name parsed or NULL
*/
CHAR *
xmlScanName(xmlParserCtxtPtr ctxt) {
CHAR buf[XML_MAX_NAMELEN];
int len = 0;
GROW;
if (!IS_LETTER(CUR) && (CUR != '_') &&
(CUR != ':')) {
return(NULL);
}
while ((IS_LETTER(NXT(len))) || (IS_DIGIT(NXT(len))) ||
(NXT(len) == '.') || (NXT(len) == '-') ||
(NXT(len) == '_') || (NXT(len) == ':') ||
(IS_COMBINING(NXT(len))) ||
(IS_EXTENDER(NXT(len)))) {
buf[len] = NXT(len);
len++;
if (len >= XML_MAX_NAMELEN) {
fprintf(stderr,
"xmlScanName: reached XML_MAX_NAMELEN limit\n");
while ((IS_LETTER(NXT(len))) || (IS_DIGIT(NXT(len))) ||
(NXT(len) == '.') || (NXT(len) == '-') ||
(NXT(len) == '_') || (NXT(len) == ':') ||
(IS_COMBINING(NXT(len))) ||
(IS_EXTENDER(NXT(len))))
len++;
break;
}
}
return(xmlStrndup(buf, len));
}
/**
* xmlParseName:
* @ctxt: an XML parser context
*
* parse an XML name.
*
* [4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' |
* CombiningChar | Extender
*
* [5] Name ::= (Letter | '_' | ':') (NameChar)*
*
* [6] Names ::= Name (S Name)*
*
* Returns the Name parsed or NULL
*/
CHAR *
xmlParseName(xmlParserCtxtPtr ctxt) {
CHAR buf[XML_MAX_NAMELEN];
int len = 0;
CHAR cur;
GROW;
cur = CUR;
if (!IS_LETTER(cur) && (cur != '_') &&
(cur != ':')) {
return(NULL);
}
while ((IS_LETTER(cur)) || (IS_DIGIT(cur)) ||
(cur == '.') || (cur == '-') ||
(cur == '_') || (cur == ':') ||
(IS_COMBINING(cur)) ||
(IS_EXTENDER(cur))) {
buf[len++] = cur;
NEXT;
cur = CUR;
if (len >= XML_MAX_NAMELEN) {
fprintf(stderr,
"xmlParseName: reached XML_MAX_NAMELEN limit\n");
while ((IS_LETTER(cur)) || (IS_DIGIT(cur)) ||
(cur == '.') || (cur == '-') ||
(cur == '_') || (cur == ':') ||
(IS_COMBINING(cur)) ||
(IS_EXTENDER(cur))) {
NEXT;
cur = CUR;
}
break;
}
}
return(xmlStrndup(buf, len));
}
/**
* xmlParseNmtoken:
* @ctxt: an XML parser context
*
* parse an XML Nmtoken.
*
* [7] Nmtoken ::= (NameChar)+
*
* [8] Nmtokens ::= Nmtoken (S Nmtoken)*
*
* Returns the Nmtoken parsed or NULL
*/
CHAR *
xmlParseNmtoken(xmlParserCtxtPtr ctxt) {
CHAR buf[XML_MAX_NAMELEN];
int len = 0;
GROW;
while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) ||
(CUR == '.') || (CUR == '-') ||
(CUR == '_') || (CUR == ':') ||
(IS_COMBINING(CUR)) ||
(IS_EXTENDER(CUR))) {
buf[len++] = CUR;
NEXT;
if (len >= XML_MAX_NAMELEN) {
fprintf(stderr,
"xmlParseNmtoken: reached XML_MAX_NAMELEN limit\n");
while ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) ||
(CUR == '.') || (CUR == '-') ||
(CUR == '_') || (CUR == ':') ||
(IS_COMBINING(CUR)) ||
(IS_EXTENDER(CUR)))
NEXT;
break;
}
}
return(xmlStrndup(buf, len));
}
/**
* xmlParseEntityValue:
* @ctxt: an XML parser context
* @orig: if non-NULL store a copy of the original entity value
*
* parse a value for ENTITY decl.
*
* [9] EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"' |
* "'" ([^%&'] | PEReference | Reference)* "'"
*
* Returns the EntityValue parsed with reference substitued or NULL
*/
CHAR *
xmlParseEntityValue(xmlParserCtxtPtr ctxt, CHAR **orig) {
CHAR *ret = NULL;
const CHAR *org = NULL;
const CHAR *tst = NULL;
const CHAR *temp = NULL;
xmlParserInputPtr input;
SHRINK;
if (CUR == '"') {
ctxt->instate = XML_PARSER_ENTITY_VALUE;
input = ctxt->input;
NEXT;
org = CUR_PTR;
/*
* NOTE: 4.4.5 Included in Literal
* When a parameter entity reference appears in a literal entity
* value, ... a single or double quote character in the replacement
* text is always treated as a normal data character and will not
* terminate the literal.
* In practice it means we stop the loop only when back at parsing
* the initial entity and the quote is found
*/
while ((CUR != '"') || (ctxt->input != input)) {
tst = CUR_PTR;
/*
* NOTE: 4.4.7 Bypassed
* When a general entity reference appears in the EntityValue in
* an entity declaration, it is bypassed and left as is.
* so XML_SUBSTITUTE_REF is not set.
*/
if (ctxt->input != input)
temp = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_PEREF,
0, 0, 0);
else
temp = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_PEREF,
'"', 0, 0);
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((temp == NULL) && (tst == CUR_PTR)) {
ret = xmlStrndup((CHAR *) "", 0);
break;
}
if ((temp[0] == 0) && (tst == CUR_PTR)) {
free((char *)temp);
ret = xmlStrndup((CHAR *) "", 0);
break;
}
ret = xmlStrcat(ret, temp);
if (temp != NULL) free((char *)temp);
GROW;
}
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "EntityValue: \" expected\n");
ctxt->wellFormed = 0;
} else {
if (orig != NULL) /* !!!!!!!!! */
*orig = xmlStrndup(org, CUR_PTR - org);
if (ret == NULL)
ret = xmlStrndup((CHAR *) "", 0);
NEXT;
}
} else if (CUR == '\'') {
ctxt->instate = XML_PARSER_ENTITY_VALUE;
input = ctxt->input;
NEXT;
org = CUR_PTR;
/*
* NOTE: 4.4.5 Included in Literal
* When a parameter entity reference appears in a literal entity
* value, ... a single or double quote character in the replacement
* text is always treated as a normal data character and will not
* terminate the literal.
* In practice it means we stop the loop only when back at parsing
* the initial entity and the quote is found
*/
while ((CUR != '\'') || (ctxt->input != input)) {
tst = CUR_PTR;
/*
* NOTE: 4.4.7 Bypassed
* When a general entity reference appears in the EntityValue in
* an entity declaration, it is bypassed and left as is.
* so XML_SUBSTITUTE_REF is not set.
*/
if (ctxt->input != input)
temp = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_PEREF,
0, 0, 0);
else
temp = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_PEREF,
'\'', 0, 0);
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((temp == NULL) && (tst == CUR_PTR)) {
ret = xmlStrndup((CHAR *) "", 0);
break;
}
if ((temp[0] == 0) && (tst == CUR_PTR)) {
free((char *)temp);
ret = xmlStrndup((CHAR *) "", 0);
break;
}
ret = xmlStrcat(ret, temp);
if (temp != NULL) free((char *)temp);
GROW;
}
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "EntityValue: ' expected\n");
ctxt->wellFormed = 0;
} else {
if (orig != NULL) /* !!!!!!!!! */
*orig = xmlStrndup(org, CUR_PTR - org);
if (ret == NULL)
ret = xmlStrndup((CHAR *) "", 0);
NEXT;
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "EntityValue: \" or ' expected\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParseAttValue:
* @ctxt: an XML parser context
*
* parse a value for an attribute
* Note: the parser won't do substitution of entities here, this
* will be handled later in xmlStringGetNodeList
*
* [10] AttValue ::= '"' ([^<&"] | Reference)* '"' |
* "'" ([^<&'] | Reference)* "'"
*
* Returns the AttValue parsed or NULL.
*/
CHAR *
xmlParseAttValue(xmlParserCtxtPtr ctxt) {
CHAR *ret = NULL;
SHRINK;
if (CUR == '"') {
ctxt->instate = XML_PARSER_ATTRIBUTE_VALUE;
NEXT;
ret = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_REF, '"', '<', 0);
if (CUR == '<') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Unescaped '<' not allowed in attributes values\n");
ctxt->wellFormed = 0;
}
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: ' expected\n");
ctxt->wellFormed = 0;
} else
NEXT;
} else if (CUR == '\'') {
ctxt->instate = XML_PARSER_ATTRIBUTE_VALUE;
NEXT;
ret = xmlDecodeEntities(ctxt, -1, XML_SUBSTITUTE_REF, '\'', '<', 0);
if (CUR == '<') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Unescaped '<' not allowed in attributes values\n");
ctxt->wellFormed = 0;
}
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: ' expected\n");
ctxt->wellFormed = 0;
} else
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: \" or ' expected\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParseSystemLiteral:
* @ctxt: an XML parser context
*
* parse an XML Literal
*
* [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'")
*
* Returns the SystemLiteral parsed or NULL
*/
CHAR *
xmlParseSystemLiteral(xmlParserCtxtPtr ctxt) {
const CHAR *q;
CHAR *ret = NULL;
SHRINK;
if (CUR == '"') {
NEXT;
q = CUR_PTR;
while ((IS_CHAR(CUR)) && (CUR != '"'))
NEXT;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished SystemLiteral\n");
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
} else if (CUR == '\'') {
NEXT;
q = CUR_PTR;
while ((IS_CHAR(CUR)) && (CUR != '\''))
NEXT;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished SystemLiteral\n");
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "SystemLiteral \" or ' expected\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParsePubidLiteral:
* @ctxt: an XML parser context
*
* parse an XML public literal
*
* [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
*
* Returns the PubidLiteral parsed or NULL.
*/
CHAR *
xmlParsePubidLiteral(xmlParserCtxtPtr ctxt) {
const CHAR *q;
CHAR *ret = NULL;
/*
* Name ::= (Letter | '_') (NameChar)*
*/
SHRINK;
if (CUR == '"') {
NEXT;
q = CUR_PTR;
while (IS_PUBIDCHAR(CUR)) NEXT;
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished PubidLiteral\n");
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
} else if (CUR == '\'') {
NEXT;
q = CUR_PTR;
while ((IS_LETTER(CUR)) && (CUR != '\''))
NEXT;
if (!IS_LETTER(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished PubidLiteral\n");
ctxt->wellFormed = 0;
} else {
ret = xmlStrndup(q, CUR_PTR - q);
NEXT;
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "SystemLiteral \" or ' expected\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParseCharData:
* @ctxt: an XML parser context
* @cdata: int indicating whether we are within a CDATA section
*
* parse a CharData section.
* if we are within a CDATA section ']]>' marks an end of section.
*
* [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*)
*/
void
xmlParseCharData(xmlParserCtxtPtr ctxt, int cdata) {
CHAR buf[1000];
int nbchar = 0;
CHAR cur;
SHRINK;
/*
* !!!!!!!!!!!!
* NOTE: NXT(0) is used here to avoid breaking on &lt; or &amp;
* entities substitutions.
*/
cur = CUR;
while ((IS_CHAR(cur)) && (cur != '<') &&
(cur != '&')) {
if ((cur == ']') && (NXT(1) == ']') &&
(NXT(2) == '>')) {
if (cdata) break;
else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Sequence ']]>' not allowed in content\n");
ctxt->wellFormed = 0;
}
}
buf[nbchar++] = CUR;
if (nbchar == 1000) {
/*
* Ok the segment is to be consumed as chars.
*/
if (ctxt->sax != NULL) {
if (areBlanks(ctxt, buf, nbchar)) {
if (ctxt->sax->ignorableWhitespace != NULL)
ctxt->sax->ignorableWhitespace(ctxt->userData,
buf, nbchar);
} else {
if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData, buf, nbchar);
}
}
nbchar = 0;
}
NEXT;
cur = CUR;
}
if (nbchar != 0) {
/*
* Ok the segment is to be consumed as chars.
*/
if (ctxt->sax != NULL) {
if (areBlanks(ctxt, buf, nbchar)) {
if (ctxt->sax->ignorableWhitespace != NULL)
ctxt->sax->ignorableWhitespace(ctxt->userData, buf, nbchar);
} else {
if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData, buf, nbchar);
}
}
}
}
/**
* xmlParseExternalID:
* @ctxt: an XML parser context
* @publicID: a CHAR** receiving PubidLiteral
* @strict: indicate whether we should restrict parsing to only
* production [75], see NOTE below
*
* Parse an External ID or a Public ID
*
* NOTE: Productions [75] and [83] interract badly since [75] can generate
* 'PUBLIC' S PubidLiteral S SystemLiteral
*
* [75] ExternalID ::= 'SYSTEM' S SystemLiteral
* | 'PUBLIC' S PubidLiteral S SystemLiteral
*
* [83] PublicID ::= 'PUBLIC' S PubidLiteral
*
* Returns the function returns SystemLiteral and in the second
* case publicID receives PubidLiteral, is strict is off
* it is possible to return NULL and have publicID set.
*/
CHAR *
xmlParseExternalID(xmlParserCtxtPtr ctxt, CHAR **publicID, int strict) {
CHAR *URI = NULL;
SHRINK;
if ((CUR == 'S') && (NXT(1) == 'Y') &&
(NXT(2) == 'S') && (NXT(3) == 'T') &&
(NXT(4) == 'E') && (NXT(5) == 'M')) {
SKIP(6);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'SYSTEM'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
URI = xmlParseSystemLiteral(ctxt);
if (URI == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: SYSTEM, no URI\n");
ctxt->wellFormed = 0;
}
} else if ((CUR == 'P') && (NXT(1) == 'U') &&
(NXT(2) == 'B') && (NXT(3) == 'L') &&
(NXT(4) == 'I') && (NXT(5) == 'C')) {
SKIP(6);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'PUBLIC'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
*publicID = xmlParsePubidLiteral(ctxt);
if (*publicID == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: PUBLIC, no Public Identifier\n");
ctxt->wellFormed = 0;
}
if (strict) {
/*
* We don't handle [83] so "S SystemLiteral" is required.
*/
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the Public Identifier\n");
ctxt->wellFormed = 0;
}
} else {
/*
* We handle [83] so we return immediately, if
* "S SystemLiteral" is not detected. From a purely parsing
* point of view that's a nice mess.
*/
const CHAR *ptr = CUR_PTR;
if (!IS_BLANK(*ptr)) return(NULL);
while (IS_BLANK(*ptr)) ptr++;
if ((*ptr != '\'') || (*ptr != '"')) return(NULL);
}
SKIP_BLANKS;
URI = xmlParseSystemLiteral(ctxt);
if (URI == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: PUBLIC, no URI\n");
ctxt->wellFormed = 0;
}
}
return(URI);
}
/**
* xmlParseComment:
* @ctxt: an XML parser context
*
* Skip an XML (SGML) comment <!-- .... -->
* The spec says that "For compatibility, the string "--" (double-hyphen)
* must not occur within comments. "
*
* [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
*/
void
xmlParseComment(xmlParserCtxtPtr ctxt) {
const CHAR *q, *start;
const CHAR *r;
CHAR *val;
/*
* Check that there is a comment right here.
*/
if ((CUR != '<') || (NXT(1) != '!') ||
(NXT(2) != '-') || (NXT(3) != '-')) return;
ctxt->instate = XML_PARSER_COMMENT;
SHRINK;
SKIP(4);
start = q = CUR_PTR;
NEXT;
r = CUR_PTR;
NEXT;
while (IS_CHAR(CUR) &&
((CUR == ':') || (CUR != '>') ||
(*r != '-') || (*q != '-'))) {
if ((*r == '-') && (*q == '-')) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Comment must not contain '--' (double-hyphen)`\n");
ctxt->wellFormed = 0;
}
NEXT;r++;q++;
}
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Comment not terminated \n<!--%.50s\n", start);
ctxt->wellFormed = 0;
} else {
NEXT;
val = xmlStrndup(start, q - start);
if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL))
ctxt->sax->comment(ctxt->userData, val);
free(val);
}
}
/**
* xmlParsePITarget:
* @ctxt: an XML parser context
*
* parse the name of a PI
*
* [17] PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))
*
* Returns the PITarget name or NULL
*/
CHAR *
xmlParsePITarget(xmlParserCtxtPtr ctxt) {
CHAR *name;
name = xmlParseName(ctxt);
if ((name != NULL) && (name[3] == 0) &&
((name[0] == 'x') || (name[0] == 'X')) &&
((name[1] == 'm') || (name[1] == 'M')) &&
((name[2] == 'l') || (name[2] == 'L'))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParsePItarget: invalid name prefix 'xml'\n");
return(NULL);
}
return(name);
}
/**
* xmlParsePI:
* @ctxt: an XML parser context
*
* parse an XML Processing Instruction.
*
* [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
*
* The processing is transfered to SAX once parsed.
*/
void
xmlParsePI(xmlParserCtxtPtr ctxt) {
CHAR *target;
if ((CUR == '<') && (NXT(1) == '?')) {
/*
* this is a Processing Instruction.
*/
SKIP(2);
SHRINK;
/*
* Parse the target name and check for special support like
* namespace.
*/
target = xmlParsePITarget(ctxt);
if (target != NULL) {
const CHAR *q;
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI: PI %s space expected\n", target);
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
q = CUR_PTR;
while (IS_CHAR(CUR) &&
((CUR != '?') || (NXT(1) != '>')))
NEXT;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI: PI %s never end ...\n", target);
ctxt->wellFormed = 0;
} else {
CHAR *data;
data = xmlStrndup(q, CUR_PTR - q);
SKIP(2);
/*
* SAX: PI detected.
*/
if ((ctxt->sax) &&
(ctxt->sax->processingInstruction != NULL))
ctxt->sax->processingInstruction(ctxt->userData,
target, data);
free(data);
}
free(target);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI : no target name\n");
ctxt->wellFormed = 0;
}
}
}
/**
* xmlParseNotationDecl:
* @ctxt: an XML parser context
*
* parse a notation declaration
*
* [82] NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
*
* Hence there is actually 3 choices:
* 'PUBLIC' S PubidLiteral
* 'PUBLIC' S PubidLiteral S SystemLiteral
* and 'SYSTEM' S SystemLiteral
*
* See the NOTE on xmlParseExternalID().
*/
void
xmlParseNotationDecl(xmlParserCtxtPtr ctxt) {
CHAR *name;
CHAR *Pubid;
CHAR *Systemid;
if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == 'N') && (NXT(3) == 'O') &&
(NXT(4) == 'T') && (NXT(5) == 'A') &&
(NXT(6) == 'T') && (NXT(7) == 'I') &&
(NXT(8) == 'O') && (NXT(9) == 'N')) {
SHRINK;
SKIP(10);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after '<!NOTATION'\n");
ctxt->wellFormed = 0;
return;
}
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "NOTATION: Name expected here\n");
ctxt->wellFormed = 0;
return;
}
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the NOTATION name'\n");
ctxt->wellFormed = 0;
return;
}
SKIP_BLANKS;
/*
* Parse the IDs.
*/
Systemid = xmlParseExternalID(ctxt, &Pubid, 1);
SKIP_BLANKS;
if (CUR == '>') {
NEXT;
if ((ctxt->sax != NULL) && (ctxt->sax->notationDecl != NULL))
ctxt->sax->notationDecl(ctxt->userData, name, Pubid, Systemid);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'>' required to close NOTATION declaration\n");
ctxt->wellFormed = 0;
}
free(name);
if (Systemid != NULL) free(Systemid);
if (Pubid != NULL) free(Pubid);
}
}
/**
* xmlParseEntityDecl:
* @ctxt: an XML parser context
*
* parse <!ENTITY declarations
*
* [70] EntityDecl ::= GEDecl | PEDecl
*
* [71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>'
*
* [72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>'
*
* [73] EntityDef ::= EntityValue | (ExternalID NDataDecl?)
*
* [74] PEDef ::= EntityValue | ExternalID
*
* [76] NDataDecl ::= S 'NDATA' S Name
*
* [ VC: Notation Declared ]
* The Name must match the declared name of a notation.
*/
void
xmlParseEntityDecl(xmlParserCtxtPtr ctxt) {
CHAR *name = NULL;
CHAR *value = NULL;
CHAR *URI = NULL, *literal = NULL;
CHAR *ndata = NULL;
int isParameter = 0;
CHAR *orig = NULL;
GROW;
if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == 'E') && (NXT(3) == 'N') &&
(NXT(4) == 'T') && (NXT(5) == 'I') &&
(NXT(6) == 'T') && (NXT(7) == 'Y')) {
ctxt->instate = XML_PARSER_ENTITY_DECL;
SHRINK;
SKIP(8);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after '<!ENTITY'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
if (CUR == '%') {
NEXT;
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after '%'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
isParameter = 1;
}
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseEntityDecl: no name\n");
ctxt->wellFormed = 0;
return;
}
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the entity name\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
/*
* handle the various case of definitions...
*/
if (isParameter) {
if ((CUR == '"') || (CUR == '\''))
value = xmlParseEntityValue(ctxt, &orig);
if (value) {
if ((ctxt->sax != NULL) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_INTERNAL_PARAMETER_ENTITY,
NULL, NULL, value);
}
else {
URI = xmlParseExternalID(ctxt, &literal, 1);
if (URI) {
if ((ctxt->sax != NULL) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_EXTERNAL_PARAMETER_ENTITY,
literal, URI, NULL);
}
}
} else {
if ((CUR == '"') || (CUR == '\'')) {
value = xmlParseEntityValue(ctxt, &orig);
if ((ctxt->sax != NULL) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_INTERNAL_GENERAL_ENTITY,
NULL, NULL, value);
} else {
URI = xmlParseExternalID(ctxt, &literal, 1);
if ((CUR != '>') && (!IS_BLANK(CUR))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required before 'NDATA'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
if ((CUR == 'N') && (NXT(1) == 'D') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'A')) {
SKIP(5);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'NDATA'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
ndata = xmlParseName(ctxt);
if ((ctxt->sax != NULL) &&
(ctxt->sax->unparsedEntityDecl != NULL))
ctxt->sax->unparsedEntityDecl(ctxt->userData, name,
literal, URI, ndata);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_EXTERNAL_GENERAL_PARSED_ENTITY,
literal, URI, NULL);
}
}
}
SKIP_BLANKS;
if (CUR != '>') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityDecl: entity %s not terminated\n", name);
ctxt->wellFormed = 0;
} else
NEXT;
if (orig != NULL) {
/*
* Ugly mechanism to save the raw entity value.
*/
xmlEntityPtr cur = NULL;
if (isParameter) {
if ((ctxt->sax != NULL) &&
(ctxt->sax->getParameterEntity != NULL))
cur = ctxt->sax->getParameterEntity(ctxt, name);
} else {
if ((ctxt->sax != NULL) &&
(ctxt->sax->getEntity != NULL))
cur = ctxt->sax->getEntity(ctxt, name);
}
if (cur != NULL) {
if (cur->orig != NULL)
free(orig);
else
cur->orig = orig;
} else
free(orig);
}
if (name != NULL) free(name);
if (value != NULL) free(value);
if (URI != NULL) free(URI);
if (literal != NULL) free(literal);
if (ndata != NULL) free(ndata);
}
}
/**
* xmlParseDefaultDecl:
* @ctxt: an XML parser context
* @value: Receive a possible fixed default value for the attribute
*
* Parse an attribute default declaration
*
* [60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue)
*
* [ VC: Required Attribute ]
* if the default declaration is the keyword #REQUIRED, then the
* attribute must be specified for all elements of the type in the
* attribute-list declaration.
*
* [ VC: Attribute Default Legal ]
* The declared default value must meet the lexical constraints of
* the declared attribute type c.f. xmlValidateAttributeDecl()
*
* [ VC: Fixed Attribute Default ]
* if an attribute has a default value declared with the #FIXED
* keyword, instances of that attribute must match the default value.
*
* [ WFC: No < in Attribute Values ]
* handled in xmlParseAttValue()
*
* returns: XML_ATTRIBUTE_NONE, XML_ATTRIBUTE_REQUIRED, XML_ATTRIBUTE_IMPLIED
* or XML_ATTRIBUTE_FIXED.
*/
int
xmlParseDefaultDecl(xmlParserCtxtPtr ctxt, CHAR **value) {
int val;
CHAR *ret;
*value = NULL;
if ((CUR == '#') && (NXT(1) == 'R') &&
(NXT(2) == 'E') && (NXT(3) == 'Q') &&
(NXT(4) == 'U') && (NXT(5) == 'I') &&
(NXT(6) == 'R') && (NXT(7) == 'E') &&
(NXT(8) == 'D')) {
SKIP(9);
return(XML_ATTRIBUTE_REQUIRED);
}
if ((CUR == '#') && (NXT(1) == 'I') &&
(NXT(2) == 'M') && (NXT(3) == 'P') &&
(NXT(4) == 'L') && (NXT(5) == 'I') &&
(NXT(6) == 'E') && (NXT(7) == 'D')) {
SKIP(8);
return(XML_ATTRIBUTE_IMPLIED);
}
val = XML_ATTRIBUTE_NONE;
if ((CUR == '#') && (NXT(1) == 'F') &&
(NXT(2) == 'I') && (NXT(3) == 'X') &&
(NXT(4) == 'E') && (NXT(5) == 'D')) {
SKIP(6);
val = XML_ATTRIBUTE_FIXED;
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after '#FIXED'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
}
ret = xmlParseAttValue(ctxt);
ctxt->instate = XML_PARSER_DTD;
if (ret == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute default value declaration error\n");
ctxt->wellFormed = 0;
} else
*value = ret;
return(val);
}
/**
* xmlParseNotationType:
* @ctxt: an XML parser context
*
* parse an Notation attribute type.
*
* Note: the leading 'NOTATION' S part has already being parsed...
*
* [58] NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')'
*
* [ VC: Notation Attributes ]
* Values of this type must match one of the notation names included
* in the declaration; all notation names in the declaration must be declared.
*
* Returns: the notation attribute tree built while parsing
*/
xmlEnumerationPtr
xmlParseNotationType(xmlParserCtxtPtr ctxt) {
CHAR *name;
xmlEnumerationPtr ret = NULL, last = NULL, cur;
if (CUR != '(') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "'(' required to start 'NOTATION'\n");
ctxt->wellFormed = 0;
return(NULL);
}
SHRINK;
do {
NEXT;
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Name expected in NOTATION declaration\n");
ctxt->wellFormed = 0;
return(ret);
}
cur = xmlCreateEnumeration(name);
free(name);
if (cur == NULL) return(ret);
if (last == NULL) ret = last = cur;
else {
last->next = cur;
last = cur;
}
SKIP_BLANKS;
} while (CUR == '|');
if (CUR != ')') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"')' required to finish NOTATION declaration\n");
ctxt->wellFormed = 0;
return(ret);
}
NEXT;
return(ret);
}
/**
* xmlParseEnumerationType:
* @ctxt: an XML parser context
*
* parse an Enumeration attribute type.
*
* [59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
*
* [ VC: Enumeration ]
* Values of this type must match one of the Nmtoken tokens in
* the declaration
*
* Returns: the enumeration attribute tree built while parsing
*/
xmlEnumerationPtr
xmlParseEnumerationType(xmlParserCtxtPtr ctxt) {
CHAR *name;
xmlEnumerationPtr ret = NULL, last = NULL, cur;
if (CUR != '(') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'(' required to start ATTLIST enumeration\n");
ctxt->wellFormed = 0;
return(NULL);
}
SHRINK;
do {
NEXT;
SKIP_BLANKS;
name = xmlParseNmtoken(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"NmToken expected in ATTLIST enumeration\n");
ctxt->wellFormed = 0;
return(ret);
}
cur = xmlCreateEnumeration(name);
free(name);
if (cur == NULL) return(ret);
if (last == NULL) ret = last = cur;
else {
last->next = cur;
last = cur;
}
SKIP_BLANKS;
} while (CUR == '|');
if (CUR != ')') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"')' required to finish ATTLIST enumeration\n");
ctxt->wellFormed = 0;
return(ret);
}
NEXT;
return(ret);
}
/**
* xmlParseEnumeratedType:
* @ctxt: an XML parser context
* @tree: the enumeration tree built while parsing
*
* parse an Enumerated attribute type.
*
* [57] EnumeratedType ::= NotationType | Enumeration
*
* [58] NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')'
*
*
* Returns: XML_ATTRIBUTE_ENUMERATION or XML_ATTRIBUTE_NOTATION
*/
int
xmlParseEnumeratedType(xmlParserCtxtPtr ctxt, xmlEnumerationPtr *tree) {
if ((CUR == 'N') && (NXT(1) == 'O') &&
(NXT(2) == 'T') && (NXT(3) == 'A') &&
(NXT(4) == 'T') && (NXT(5) == 'I') &&
(NXT(6) == 'O') && (NXT(7) == 'N')) {
SKIP(8);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after 'NOTATION'\n");
ctxt->wellFormed = 0;
return(0);
}
SKIP_BLANKS;
*tree = xmlParseNotationType(ctxt);
if (*tree == NULL) return(0);
return(XML_ATTRIBUTE_NOTATION);
}
*tree = xmlParseEnumerationType(ctxt);
if (*tree == NULL) return(0);
return(XML_ATTRIBUTE_ENUMERATION);
}
/**
* xmlParseAttributeType:
* @ctxt: an XML parser context
* @tree: the enumeration tree built while parsing
*
* parse the Attribute list def for an element
*
* [54] AttType ::= StringType | TokenizedType | EnumeratedType
*
* [55] StringType ::= 'CDATA'
*
* [56] TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY' |
* 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS'
*
* Validity constraints for attribute values syntax are checked in
* xmlValidateAttributeValue()
*
* [ VC: ID ]
* Values of type ID must match the Name production. A name must not
* appear more than once in an XML document as a value of this type;
* i.e., ID values must uniquely identify the elements which bear them.
*
* [ VC: One ID per Element Type ]
* No element type may have more than one ID attribute specified.
*
* [ VC: ID Attribute Default ]
* An ID attribute must have a declared default of #IMPLIED or #REQUIRED.
*
* [ VC: IDREF ]
* Values of type IDREF must match the Name production, and values
* of type IDREFS must match Names; TODO each IDREF Name must match the value
* of an ID attribute on some element in the XML document; i.e. IDREF
* values must match the value of some ID attribute.
*
* [ VC: Entity Name ]
* Values of type ENTITY must match the Name production, values
* of type ENTITIES must match Names; TODO each Entity Name must match the
* name of an unparsed entity declared in the DTD.
*
* [ VC: Name Token ]
* Values of type NMTOKEN must match the Nmtoken production; values
* of type NMTOKENS must match Nmtokens.
*
* Returns the attribute type
*/
int
xmlParseAttributeType(xmlParserCtxtPtr ctxt, xmlEnumerationPtr *tree) {
SHRINK;
if ((CUR == 'C') && (NXT(1) == 'D') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'A')) {
SKIP(5);
return(XML_ATTRIBUTE_CDATA);
} else if ((CUR == 'I') && (NXT(1) == 'D') &&
(NXT(2) == 'R') && (NXT(3) == 'E') &&
(NXT(4) == 'F') && (NXT(5) == 'S')) {
SKIP(6);
return(XML_ATTRIBUTE_IDREFS);
} else if ((CUR == 'I') && (NXT(1) == 'D') &&
(NXT(2) == 'R') && (NXT(3) == 'E') &&
(NXT(4) == 'F')) {
SKIP(5);
return(XML_ATTRIBUTE_IDREF);
} else if ((CUR == 'I') && (NXT(1) == 'D')) {
SKIP(2);
return(XML_ATTRIBUTE_ID);
} else if ((CUR == 'E') && (NXT(1) == 'N') &&
(NXT(2) == 'T') && (NXT(3) == 'I') &&
(NXT(4) == 'T') && (NXT(5) == 'Y')) {
SKIP(6);
return(XML_ATTRIBUTE_ENTITY);
} else if ((CUR == 'E') && (NXT(1) == 'N') &&
(NXT(2) == 'T') && (NXT(3) == 'I') &&
(NXT(4) == 'T') && (NXT(5) == 'I') &&
(NXT(6) == 'E') && (NXT(7) == 'S')) {
SKIP(8);
return(XML_ATTRIBUTE_ENTITIES);
} else if ((CUR == 'N') && (NXT(1) == 'M') &&
(NXT(2) == 'T') && (NXT(3) == 'O') &&
(NXT(4) == 'K') && (NXT(5) == 'E') &&
(NXT(6) == 'N') && (NXT(7) == 'S')) {
SKIP(8);
return(XML_ATTRIBUTE_NMTOKENS);
} else if ((CUR == 'N') && (NXT(1) == 'M') &&
(NXT(2) == 'T') && (NXT(3) == 'O') &&
(NXT(4) == 'K') && (NXT(5) == 'E') &&
(NXT(6) == 'N')) {
SKIP(7);
return(XML_ATTRIBUTE_NMTOKEN);
}
return(xmlParseEnumeratedType(ctxt, tree));
}
/**
* xmlParseAttributeListDecl:
* @ctxt: an XML parser context
*
* : parse the Attribute list def for an element
*
* [52] AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
*
* [53] AttDef ::= S Name S AttType S DefaultDecl
*
*/
void
xmlParseAttributeListDecl(xmlParserCtxtPtr ctxt) {
CHAR *elemName;
CHAR *attrName;
xmlEnumerationPtr tree;
if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'T') && (NXT(5) == 'L') &&
(NXT(6) == 'I') && (NXT(7) == 'S') &&
(NXT(8) == 'T')) {
SKIP(9);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space required after '<!ATTLIST'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
elemName = xmlParseName(ctxt);
if (elemName == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "ATTLIST: no name for Element\n");
ctxt->wellFormed = 0;
return;
}
SKIP_BLANKS;
while (CUR != '>') {
const CHAR *check = CUR_PTR;
int type;
int def;
CHAR *defaultValue = NULL;
tree = NULL;
attrName = xmlParseName(ctxt);
if (attrName == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "ATTLIST: no name for Attribute\n");
ctxt->wellFormed = 0;
break;
}
GROW;
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute name\n");
ctxt->wellFormed = 0;
break;
}
SKIP_BLANKS;
type = xmlParseAttributeType(ctxt, &tree);
if (type <= 0) break;
GROW;
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute type\n");
ctxt->wellFormed = 0;
break;
}
SKIP_BLANKS;
def = xmlParseDefaultDecl(ctxt, &defaultValue);
if (def <= 0) break;
GROW;
if (CUR != '>') {
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute default value\n");
ctxt->wellFormed = 0;
break;
}
SKIP_BLANKS;
}
if (check == CUR_PTR) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseAttributeListDecl: detected internal error\n");
break;
}
if ((ctxt->sax != NULL) && (ctxt->sax->attributeDecl != NULL))
ctxt->sax->attributeDecl(ctxt->userData, elemName, attrName,
type, def, defaultValue, tree);
if (attrName != NULL)
free(attrName);
if (defaultValue != NULL)
free(defaultValue);
GROW;
}
if (CUR == '>')
NEXT;
free(elemName);
}
}
/**
* xmlParseElementMixedContentDecl:
* @ctxt: an XML parser context
*
* parse the declaration for a Mixed Element content
* The leading '(' and spaces have been skipped in xmlParseElementContentDecl
*
* [51] Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*' |
* '(' S? '#PCDATA' S? ')'
*
* [ VC: Proper Group/PE Nesting ] applies to [51] too (see [49])
*
* [ VC: No Duplicate Types ]
* The same name must not appear more than once in a single
* mixed-content declaration.
*
* returns: the list of the xmlElementContentPtr describing the element choices
*/
xmlElementContentPtr
xmlParseElementMixedContentDecl(xmlParserCtxtPtr ctxt) {
xmlElementContentPtr ret = NULL, cur = NULL, n;
CHAR *elem = NULL;
GROW;
if ((CUR == '#') && (NXT(1) == 'P') &&
(NXT(2) == 'C') && (NXT(3) == 'D') &&
(NXT(4) == 'A') && (NXT(5) == 'T') &&
(NXT(6) == 'A')) {
SKIP(7);
SKIP_BLANKS;
SHRINK;
if (CUR == ')') {
NEXT;
ret = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_PCDATA);
return(ret);
}
if ((CUR == '(') || (CUR == '|')) {
ret = cur = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_PCDATA);
if (ret == NULL) return(NULL);
}
while (CUR == '|') {
NEXT;
if (elem == NULL) {
ret = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (ret == NULL) return(NULL);
ret->c1 = cur;
cur = ret;
} else {
n = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (n == NULL) return(NULL);
n->c1 = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
cur->c2 = n;
cur = n;
free(elem);
}
SKIP_BLANKS;
elem = xmlParseName(ctxt);
if (elem == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : Name expected\n");
ctxt->wellFormed = 0;
xmlFreeElementContent(cur);
return(NULL);
}
SKIP_BLANKS;
GROW;
}
if ((CUR == ')') && (NXT(1) == '*')) {
if (elem != NULL) {
cur->c2 = xmlNewElementContent(elem,
XML_ELEMENT_CONTENT_ELEMENT);
free(elem);
}
ret->ocur = XML_ELEMENT_CONTENT_MULT;
SKIP(2);
} else {
if (elem != NULL) free(elem);
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : '|' or ')*' expected\n");
ctxt->wellFormed = 0;
xmlFreeElementContent(ret);
return(NULL);
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : '#PCDATA' expected\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParseElementChildrenContentDecl:
* @ctxt: an XML parser context
*
* parse the declaration for a Mixed Element content
* The leading '(' and spaces have been skipped in xmlParseElementContentDecl
*
*
* [47] children ::= (choice | seq) ('?' | '*' | '+')?
*
* [48] cp ::= (Name | choice | seq) ('?' | '*' | '+')?
*
* [49] choice ::= '(' S? cp ( S? '|' S? cp )* S? ')'
*
* [50] seq ::= '(' S? cp ( S? ',' S? cp )* S? ')'
*
* [ VC: Proper Group/PE Nesting ] applies to [49] and [50]
* TODO Parameter-entity replacement text must be properly nested
* with parenthetized groups. That is to say, if either of the
* opening or closing parentheses in a choice, seq, or Mixed
* construct is contained in the replacement text for a parameter
* entity, both must be contained in the same replacement text. For
* interoperability, if a parameter-entity reference appears in a
* choice, seq, or Mixed construct, its replacement text should not
* be empty, and neither the first nor last non-blank character of
* the replacement text should be a connector (| or ,).
*
* returns: the tree of xmlElementContentPtr describing the element
* hierarchy.
*/
xmlElementContentPtr
xmlParseElementChildrenContentDecl(xmlParserCtxtPtr ctxt) {
xmlElementContentPtr ret = NULL, cur = NULL, last = NULL, op = NULL;
CHAR *elem;
CHAR type = 0;
SKIP_BLANKS;
GROW;
if (CUR == '(') {
/* Recurse on first child */
NEXT;
SKIP_BLANKS;
cur = ret = xmlParseElementChildrenContentDecl(ctxt);
SKIP_BLANKS;
GROW;
} else {
elem = xmlParseName(ctxt);
if (elem == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : Name or '(' expected\n");
ctxt->wellFormed = 0;
return(NULL);
}
cur = ret = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
GROW;
if (CUR == '?') {
cur->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (CUR == '*') {
cur->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
} else if (CUR == '+') {
cur->ocur = XML_ELEMENT_CONTENT_PLUS;
NEXT;
} else {
cur->ocur = XML_ELEMENT_CONTENT_ONCE;
}
free(elem);
GROW;
}
SKIP_BLANKS;
SHRINK;
while (CUR != ')') {
/*
* Each loop we parse one separator and one element.
*/
if (CUR == ',') {
if (type == 0) type = CUR;
/*
* Detect "Name | Name , Name" error
*/
else if (type != CUR) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : '%c' expected\n",
type);
ctxt->wellFormed = 0;
xmlFreeElementContent(ret);
return(NULL);
}
NEXT;
op = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_SEQ);
if (op == NULL) {
xmlFreeElementContent(ret);
return(NULL);
}
if (last == NULL) {
op->c1 = ret;
ret = cur = op;
} else {
cur->c2 = op;
op->c1 = last;
cur =op;
last = NULL;
}
} else if (CUR == '|') {
if (type == 0) type = CUR;
/*
* Detect "Name , Name | Name" error
*/
else if (type != CUR) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : '%c' expected\n",
type);
ctxt->wellFormed = 0;
xmlFreeElementContent(ret);
return(NULL);
}
NEXT;
op = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (op == NULL) {
xmlFreeElementContent(ret);
return(NULL);
}
if (last == NULL) {
op->c1 = ret;
ret = cur = op;
} else {
cur->c2 = op;
op->c1 = last;
cur =op;
last = NULL;
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : ',' '|' or ')' expected\n");
ctxt->wellFormed = 0;
xmlFreeElementContent(ret);
return(NULL);
}
GROW;
SKIP_BLANKS;
GROW;
if (CUR == '(') {
/* Recurse on second child */
NEXT;
SKIP_BLANKS;
last = xmlParseElementChildrenContentDecl(ctxt);
SKIP_BLANKS;
} else {
elem = xmlParseName(ctxt);
if (elem == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : Name or '(' expected\n");
ctxt->wellFormed = 0;
return(NULL);
}
last = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
free(elem);
if (CUR == '?') {
last->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (CUR == '*') {
last->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
} else if (CUR == '+') {
last->ocur = XML_ELEMENT_CONTENT_PLUS;
NEXT;
} else {
last->ocur = XML_ELEMENT_CONTENT_ONCE;
}
}
SKIP_BLANKS;
GROW;
}
if ((cur != NULL) && (last != NULL)) {
cur->c2 = last;
}
NEXT;
if (CUR == '?') {
ret->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (CUR == '*') {
ret->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
} else if (CUR == '+') {
ret->ocur = XML_ELEMENT_CONTENT_PLUS;
NEXT;
}
return(ret);
}
/**
* xmlParseElementContentDecl:
* @ctxt: an XML parser context
* @name: the name of the element being defined.
* @result: the Element Content pointer will be stored here if any
*
* parse the declaration for an Element content either Mixed or Children,
* the cases EMPTY and ANY are handled directly in xmlParseElementDecl
*
* [46] contentspec ::= 'EMPTY' | 'ANY' | Mixed | children
*
* returns: the type of element content XML_ELEMENT_TYPE_xxx
*/
int
xmlParseElementContentDecl(xmlParserCtxtPtr ctxt, CHAR *name,
xmlElementContentPtr *result) {
xmlElementContentPtr tree = NULL;
int res;
*result = NULL;
if (CUR != '(') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementContentDecl : '(' expected\n");
ctxt->wellFormed = 0;
return(-1);
}
NEXT;
GROW;
SKIP_BLANKS;
if ((CUR == '#') && (NXT(1) == 'P') &&
(NXT(2) == 'C') && (NXT(3) == 'D') &&
(NXT(4) == 'A') && (NXT(5) == 'T') &&
(NXT(6) == 'A')) {
tree = xmlParseElementMixedContentDecl(ctxt);
res = XML_ELEMENT_TYPE_MIXED;
} else {
tree = xmlParseElementChildrenContentDecl(ctxt);
res = XML_ELEMENT_TYPE_ELEMENT;
}
SKIP_BLANKS;
/****************************
if (CUR != ')') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementContentDecl : ')' expected\n");
ctxt->wellFormed = 0;
return(-1);
}
****************************/
*result = tree;
return(res);
}
/**
* xmlParseElementDecl:
* @ctxt: an XML parser context
*
* parse an Element declaration.
*
* [45] elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
*
* [ VC: Unique Element Type Declaration ]
* No element type may be declared more than once
*
* Returns the type of the element, or -1 in case of error
*/
int
xmlParseElementDecl(xmlParserCtxtPtr ctxt) {
CHAR *name;
int ret = -1;
xmlElementContentPtr content = NULL;
GROW;
if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == 'E') && (NXT(3) == 'L') &&
(NXT(4) == 'E') && (NXT(5) == 'M') &&
(NXT(6) == 'E') && (NXT(7) == 'N') &&
(NXT(8) == 'T')) {
SKIP(9);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'ELEMENT'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: no name for Element\n");
ctxt->wellFormed = 0;
return(-1);
}
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the element name\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
if ((CUR == 'E') && (NXT(1) == 'M') &&
(NXT(2) == 'P') && (NXT(3) == 'T') &&
(NXT(4) == 'Y')) {
SKIP(5);
/*
* Element must always be empty.
*/
ret = XML_ELEMENT_TYPE_EMPTY;
} else if ((CUR == 'A') && (NXT(1) == 'N') &&
(NXT(2) == 'Y')) {
SKIP(3);
/*
* Element is a generic container.
*/
ret = XML_ELEMENT_TYPE_ANY;
} else if (CUR == '(') {
ret = xmlParseElementContentDecl(ctxt, name, &content);
} else {
/*
* [ WFC: PEs in Internal Subset ] error handling.
*/
if ((CUR == '%') && (ctxt->external == 0) &&
(ctxt->inputNr == 1)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: forbidden within markup decl in internal subset\n");
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: 'EMPTY', 'ANY' or '(' expected\n");
}
ctxt->wellFormed = 0;
if (name != NULL) free(name);
return(-1);
}
SKIP_BLANKS;
if (CUR != '>') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: expected '>' at the end\n");
ctxt->wellFormed = 0;
} else {
NEXT;
if ((ctxt->sax != NULL) && (ctxt->sax->elementDecl != NULL))
ctxt->sax->elementDecl(ctxt->userData, name, ret,
content);
}
if (content != NULL) {
xmlFreeElementContent(content);
}
if (name != NULL) {
free(name);
}
}
return(ret);
}
/**
* xmlParseMarkupDecl:
* @ctxt: an XML parser context
*
* parse Markup declarations
*
* [29] markupdecl ::= elementdecl | AttlistDecl | EntityDecl |
* NotationDecl | PI | Comment
*
* [ VC: Proper Declaration/PE Nesting ]
* TODO Parameter-entity replacement text must be properly nested with
* markup declarations. That is to say, if either the first character
* or the last character of a markup declaration (markupdecl above) is
* contained in the replacement text for a parameter-entity reference,
* both must be contained in the same replacement text.
*
* [ WFC: PEs in Internal Subset ]
* In the internal DTD subset, parameter-entity references can occur
* only where markup declarations can occur, not within markup declarations.
* (This does not apply to references that occur in external parameter
* entities or to the external subset.)
*/
void
xmlParseMarkupDecl(xmlParserCtxtPtr ctxt) {
GROW;
xmlParseElementDecl(ctxt);
xmlParseAttributeListDecl(ctxt);
xmlParseEntityDecl(ctxt);
xmlParseNotationDecl(ctxt);
xmlParsePI(ctxt);
xmlParseComment(ctxt);
/*
* This is only for internal subset. On external entities,
* the replacement is done before parsing stage
*/
if ((ctxt->external == 0) && (ctxt->inputNr == 1))
xmlParsePEReference(ctxt);
ctxt->instate = XML_PARSER_DTD;
}
/**
* xmlParseTextDecl:
* @ctxt: an XML parser context
*
* parse an XML declaration header for external entities
*
* [77] TextDecl ::= '<?xml' VersionInfo? EncodingDecl S? '?>'
*
* Returns the only valuable info for an external parsed entity, the encoding
*/
CHAR *
xmlParseTextDecl(xmlParserCtxtPtr ctxt) {
CHAR *version;
CHAR *encoding = NULL;
/*
* We know that '<?xml' is here.
*/
SKIP(5);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed after '<?xml'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
/*
* We may have the VersionInfo here.
*/
version = xmlParseVersionInfo(ctxt);
if (version == NULL)
version = xmlCharStrdup(XML_DEFAULT_VERSION);
ctxt->version = xmlStrdup(version);
free(version);
/*
* We must have the encoding declaration
*/
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed here\n");
ctxt->wellFormed = 0;
}
encoding = xmlParseEncodingDecl(ctxt);
SKIP_BLANKS;
if ((CUR == '?') && (NXT(1) == '>')) {
SKIP(2);
} else if (CUR == '>') {
/* Deprecated old WD ... */
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "XML declaration must end-up with '?>'\n");
ctxt->wellFormed = 0;
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "parsing XML declaration: '?>' expected\n");
ctxt->wellFormed = 0;
MOVETO_ENDTAG(CUR_PTR);
NEXT;
}
return(encoding);
}
/*
* xmlParseConditionalSections
* @ctxt: an XML parser context
*
* TODO : Conditionnal section are not yet supported !
*
* [61] conditionalSect ::= includeSect | ignoreSect
* [62] includeSect ::= '<![' S? 'INCLUDE' S? '[' extSubsetDecl ']]>'
* [63] ignoreSect ::= '<![' S? 'IGNORE' S? '[' ignoreSectContents* ']]>'
* [64] ignoreSectContents ::= Ignore ('<![' ignoreSectContents ']]>' Ignore)*
* [65] Ignore ::= Char* - (Char* ('<![' | ']]>') Char*)
*/
void
xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"XML conditional section not supported\n");
/*
* Skip up to the end of the conditionnal section.
*/
while ((CUR != 0) && ((CUR != ']') || (NXT(1) != ']') || (NXT(2) != '>')))
NEXT;
if (CUR == 0) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML conditional section not closed\n");
ctxt->wellFormed = 0;
}
}
/**
* xmlParseExternalSubset
* @ctxt: an XML parser context
*
* parse Markup declarations from an external subset
*
* [30] extSubset ::= textDecl? extSubsetDecl
*
* [31] extSubsetDecl ::= (markupdecl | conditionalSect | PEReference | S) *
*/
void
xmlParseExternalSubset(xmlParserCtxtPtr ctxt, const CHAR *ExternalID,
const CHAR *SystemID) {
if ((CUR == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l')) {
xmlParseTextDecl(ctxt);
}
if (ctxt->myDoc == NULL) {
ctxt->myDoc = xmlNewDoc(BAD_CAST "1.0");
}
if ((ctxt->myDoc != NULL) && (ctxt->myDoc->intSubset == NULL))
xmlCreateIntSubset(ctxt->myDoc, NULL, ExternalID, SystemID);
ctxt->instate = XML_PARSER_DTD;
ctxt->external = 1;
while (((CUR == '<') && (NXT(1) == '?')) ||
((CUR == '<') && (NXT(1) == '!')) ||
IS_BLANK(CUR)) {
const CHAR *check = CUR_PTR;
int cons = ctxt->input->consumed;
if ((CUR == '<') && (NXT(1) == '!') && (NXT(2) == '[')) {
xmlParseConditionalSections(ctxt);
} else if (IS_BLANK(CUR)) {
NEXT;
} else if (CUR == '%') {
xmlParsePEReference(ctxt);
} else
xmlParseMarkupDecl(ctxt);
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Content error in the external subset\n");
ctxt->wellFormed = 0;
break;
}
}
if (CUR != 0) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Extra content at the end of the document\n");
ctxt->wellFormed = 0;
}
}
/**
* xmlParseReference:
* @ctxt: an XML parser context
*
* parse and handle entity references in content, depending on the SAX
* interface, this may end-up in a call to character() if this is a
* CharRef, a predefined entity, if there is no reference() callback.
* or if the parser was asked to switch to that mode.
*
* [67] Reference ::= EntityRef | CharRef
*/
void
xmlParseReference(xmlParserCtxtPtr ctxt) {
xmlEntityPtr ent;
CHAR *val;
if (CUR != '&') return;
if (ctxt->inputNr > 1) {
CHAR cur[2] = { '&' , 0 } ;
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
ctxt->sax->characters(ctxt->userData, cur, 1);
if (ctxt->token == '&')
ctxt->token = 0;
else {
SKIP(1);
}
return;
}
if (NXT(1) == '#') {
CHAR out[2];
int val = xmlParseCharRef(ctxt);
/* invalid for UTF-8 variable encoding !!!!! */
out[0] = val;
out[1] = 0;
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
ctxt->sax->characters(ctxt->userData, out, 1);
} else {
ent = xmlParseEntityRef(ctxt);
if (ent == NULL) return;
if ((ent->name != NULL) &&
(ent->type != XML_INTERNAL_PREDEFINED_ENTITY)) {
if ((ctxt->sax != NULL) && (ctxt->sax->reference != NULL) &&
(ctxt->replaceEntities == 0)) {
/*
* Create a node.
*/
ctxt->sax->reference(ctxt->userData, ent->name);
return;
} else if (ctxt->replaceEntities) {
xmlParserInputPtr input;
input = xmlNewEntityInputStream(ctxt, ent);
xmlPushInput(ctxt, input);
return;
}
}
val = ent->content;
if (val == NULL) return;
/*
* inline the entity.
*/
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL))
ctxt->sax->characters(ctxt->userData, val, xmlStrlen(val));
}
}
/**
* xmlParseEntityRef:
* @ctxt: an XML parser context
*
* parse ENTITY references declarations
*
* [68] EntityRef ::= '&' Name ';'
*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an internal DTD
* subset which contains no parameter entity references, or a document
* with "standalone='yes'", the Name given in the entity reference
* must match that in an entity declaration, except that well-formed
* documents need not declare any of the following entities: amp, lt,
* gt, apos, quot. The declaration of a parameter entity must precede
* any reference to it. Similarly, the declaration of a general entity
* must precede any reference to it which appears in a default value in an
* attribute-list declaration. Note that if entities are declared in the
* external subset or in external parameter entities, a non-validating
* processor is not obligated to read and process their declarations;
* for such documents, the rule that an entity must be declared is a
* well-formedness constraint only if standalone='yes'.
*
* [ WFC: Parsed Entity ]
* An entity reference must not contain the name of an unparsed entity
*
* Returns the xmlEntityPtr if found, or NULL otherwise.
*/
xmlEntityPtr
xmlParseEntityRef(xmlParserCtxtPtr ctxt) {
CHAR *name;
xmlEntityPtr ent = NULL;
GROW;
if (CUR == '&') {
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityRef: no name\n");
ctxt->wellFormed = 0;
} else {
if (CUR == ';') {
NEXT;
/*
* Ask first SAX for entity resolution, otherwise try the
* predefined set.
*/
if (ctxt->sax != NULL) {
if (ctxt->sax->getEntity != NULL)
ent = ctxt->sax->getEntity(ctxt->userData, name);
if (ent == NULL)
ent = xmlGetPredefinedEntity(name);
}
/*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an
* internal DTD subset which contains no parameter entity
* references, or a document with "standalone='yes'", the
* Name given in the entity reference must match that in an
* entity declaration, except that well-formed documents
* need not declare any of the following entities: amp, lt,
* gt, apos, quot.
* The declaration of a parameter entity must precede any
* reference to it.
* Similarly, the declaration of a general entity must
* precede any reference to it which appears in a default
* value in an attribute-list declaration. Note that if
* entities are declared in the external subset or in
* external parameter entities, a non-validating processor
* is not obligated to read and process their declarations;
* for such documents, the rule that an entity must be
* declared is a well-formedness constraint only if
* standalone='yes'.
*/
if (ent == NULL) {
if ((ctxt->standalone == 1) ||
((ctxt->hasExternalSubset == 0) &&
(ctxt->hasPErefs == 0))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity '%s' not defined\n", name);
ctxt->wellFormed = 0;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"Entity '%s' not defined\n", name);
}
}
/*
* [ WFC: Parsed Entity ]
* An entity reference must not contain the name of an
* unparsed entity
*/
else if (ent->type == XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity reference to unparsed entity %s\n", name);
ctxt->wellFormed = 0;
}
/*
* [ WFC: No External Entity References ]
* Attribute values cannot contain direct or indirect
* entity references to external entities.
*/
else if ((ctxt->instate == XML_PARSER_ATTRIBUTE_VALUE) &&
(ent->type == XML_EXTERNAL_GENERAL_PARSED_ENTITY)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute references external entity '%s'\n", name);
ctxt->wellFormed = 0;
}
/*
* [ WFC: No < in Attribute Values ]
* The replacement text of any entity referred to directly or
* indirectly in an attribute value (other than "&lt;") must
* not contain a <.
*/
else if ((ctxt->instate == XML_PARSER_ATTRIBUTE_VALUE) &&
(ent != NULL) &&
(xmlStrcmp(ent->name, BAD_CAST "lt")) &&
(ent->content != NULL) &&
(xmlStrchr(ent->content, '<'))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'<' in entity '%s' is not allowed in attributes values\n", name);
ctxt->wellFormed = 0;
}
/*
* Internal check, no parameter entities here ...
*/
else {
switch (ent->type) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attempt to reference the parameter entity '%s'\n", name);
ctxt->wellFormed = 0;
break;
}
}
/*
* [ WFC: No Recursion ]
* TODO A parsed entity must not contain a recursive reference
* to itself, either directly or indirectly.
*/
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityRef: expecting ';'\n");
ctxt->wellFormed = 0;
}
free(name);
}
}
return(ent);
}
/**
* xmlParsePEReference:
* @ctxt: an XML parser context
*
* parse PEReference declarations
* The entity content is handled directly by pushing it's content as
* a new input stream.
*
* [69] PEReference ::= '%' Name ';'
*
* [ WFC: No Recursion ]
* TODO A parsed entity must not contain a recursive
* reference to itself, either directly or indirectly.
*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an internal DTD
* subset which contains no parameter entity references, or a document
* with "standalone='yes'", ... ... The declaration of a parameter
* entity must precede any reference to it...
*
* [ VC: Entity Declared ]
* In a document with an external subset or external parameter entities
* with "standalone='no'", ... ... The declaration of a parameter entity
* must precede any reference to it...
*
* [ WFC: In DTD ]
* Parameter-entity references may only appear in the DTD.
* NOTE: misleading but this is handled.
*/
void
xmlParsePEReference(xmlParserCtxtPtr ctxt) {
CHAR *name;
xmlEntityPtr entity = NULL;
xmlParserInputPtr input;
if (CUR == '%') {
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParsePEReference: no name\n");
ctxt->wellFormed = 0;
} else {
if (CUR == ';') {
NEXT;
if ((ctxt->sax != NULL) &&
(ctxt->sax->getParameterEntity != NULL))
entity = ctxt->sax->getParameterEntity(ctxt->userData,
name);
if (entity == NULL) {
/*
* [ WFC: Entity Declared ]
* In a document without any DTD, a document with only an
* internal DTD subset which contains no parameter entity
* references, or a document with "standalone='yes'", ...
* ... The declaration of a parameter entity must precede
* any reference to it...
*/
if ((ctxt->standalone == 1) ||
((ctxt->hasExternalSubset == 0) &&
(ctxt->hasPErefs == 0))) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->wellFormed = 0;
} else {
/*
* [ VC: Entity Declared ]
* In a document with an external subset or external
* parameter entities with "standalone='no'", ...
* ... The declaration of a parameter entity must precede
* any reference to it...
*/
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->valid = 0;
}
} else {
/*
* Internal checking in case the entity quest barfed
*/
if ((entity->type != XML_INTERNAL_PARAMETER_ENTITY) &&
(entity->type != XML_EXTERNAL_PARAMETER_ENTITY)) {
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"Internal: %%%s; is not a parameter entity\n", name);
} else {
input = xmlNewEntityInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
}
}
ctxt->hasPErefs = 1;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePEReference: expecting ';'\n");
ctxt->wellFormed = 0;
}
free(name);
}
}
}
/**
* xmlParseDocTypeDecl :
* @ctxt: an XML parser context
*
* parse a DOCTYPE declaration
*
* [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S?
* ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
*
* [ VC: Root Element Type ]
* The Name in the document type declaration must match the element
* type of the root element.
*/
void
xmlParseDocTypeDecl(xmlParserCtxtPtr ctxt) {
CHAR *name;
CHAR *ExternalID = NULL;
CHAR *URI = NULL;
/*
* We know that '<!DOCTYPE' has been detected.
*/
SKIP(9);
SKIP_BLANKS;
/*
* Parse the DOCTYPE name.
*/
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseDocTypeDecl : no DOCTYPE name !\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
/*
* Check for SystemID and ExternalID
*/
URI = xmlParseExternalID(ctxt, &ExternalID, 1);
if ((URI != NULL) || (ExternalID != NULL)) {
ctxt->hasExternalSubset = 1;
}
SKIP_BLANKS;
/*
* NOTE: the SAX callback may try to fetch the external subset
* entity and fill it up !
*/
if ((ctxt->sax != NULL) && (ctxt->sax->internalSubset != NULL))
ctxt->sax->internalSubset(ctxt->userData, name, ExternalID, URI);
/*
* Is there any DTD definition ?
*/
if (CUR == '[') {
ctxt->instate = XML_PARSER_DTD;
NEXT;
/*
* Parse the succession of Markup declarations and
* PEReferences.
* Subsequence (markupdecl | PEReference | S)*
*/
while (CUR != ']') {
const CHAR *check = CUR_PTR;
int cons = ctxt->input->consumed;
SKIP_BLANKS;
xmlParseMarkupDecl(ctxt);
xmlParsePEReference(ctxt);
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseDocTypeDecl: error detected in Markup declaration\n");
ctxt->wellFormed = 0;
break;
}
}
if (CUR == ']') NEXT;
}
/*
* We should be at the end of the DOCTYPE declaration.
*/
if (CUR != '>') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "DOCTYPE unproperly terminated\n");
ctxt->wellFormed = 0;
/* We shouldn't try to resynchronize ... */
}
NEXT;
/*
* Cleanup
*/
if (URI != NULL) free(URI);
if (ExternalID != NULL) free(ExternalID);
if (name != NULL) free(name);
}
/**
* xmlParseAttribute:
* @ctxt: an XML parser context
* @value: a CHAR ** used to store the value of the attribute
*
* parse an attribute
*
* [41] Attribute ::= Name Eq AttValue
*
* [ WFC: No External Entity References ]
* Attribute values cannot contain direct or indirect entity references
* to external entities.
*
* [ WFC: No < in Attribute Values ]
* The replacement text of any entity referred to directly or indirectly in
* an attribute value (other than "&lt;") must not contain a <.
*
* [ VC: Attribute Value Type ]
* The attribute must have been declared; the value must be of the type
* declared for it.
*
* [25] Eq ::= S? '=' S?
*
* With namespace:
*
* [NS 11] Attribute ::= QName Eq AttValue
*
* Also the case QName == xmlns:??? is handled independently as a namespace
* definition.
*
* Returns the attribute name, and the value in *value.
*/
CHAR *
xmlParseAttribute(xmlParserCtxtPtr ctxt, CHAR **value) {
CHAR *name, *val;
*value = NULL;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "error parsing attribute name\n");
ctxt->wellFormed = 0;
return(NULL);
}
/*
* read the value
*/
SKIP_BLANKS;
if (CUR == '=') {
NEXT;
SKIP_BLANKS;
val = xmlParseAttValue(ctxt);
ctxt->instate = XML_PARSER_CONTENT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Specification mandate value for attribute %s\n", name);
ctxt->wellFormed = 0;
return(NULL);
}
*value = val;
return(name);
}
/**
* xmlParseStartTag:
* @ctxt: an XML parser context
*
* parse a start of tag either for rule element or
* EmptyElement. In both case we don't parse the tag closing chars.
*
* [40] STag ::= '<' Name (S Attribute)* S? '>'
*
* [ WFC: Unique Att Spec ]
* No attribute name may appear more than once in the same start-tag or
* empty-element tag.
*
* [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>'
*
* [ WFC: Unique Att Spec ]
* No attribute name may appear more than once in the same start-tag or
* empty-element tag.
*
* With namespace:
*
* [NS 8] STag ::= '<' QName (S Attribute)* S? '>'
*
* [NS 10] EmptyElement ::= '<' QName (S Attribute)* S? '/>'
*
* Returns the element name parsed
*/
CHAR *
xmlParseStartTag(xmlParserCtxtPtr ctxt) {
CHAR *name;
CHAR *attname;
CHAR *attvalue;
const CHAR **atts = NULL;
int nbatts = 0;
int maxatts = 0;
int i;
if (CUR != '<') return(NULL);
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStartTag: invalid element name\n");
ctxt->wellFormed = 0;
return(NULL);
}
/*
* Now parse the attributes, it ends up with the ending
*
* (S Attribute)* S?
*/
SKIP_BLANKS;
GROW;
while ((IS_CHAR(CUR)) &&
(CUR != '>') &&
((CUR != '/') || (NXT(1) != '>'))) {
const CHAR *q = CUR_PTR;
int cons = ctxt->input->consumed;
attname = xmlParseAttribute(ctxt, &attvalue);
if ((attname != NULL) && (attvalue != NULL)) {
/*
* [ WFC: Unique Att Spec ]
* No attribute name may appear more than once in the same
* start-tag or empty-element tag.
*/
for (i = 0; i < nbatts;i += 2) {
if (!xmlStrcmp(atts[i], attname)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute %s redefined\n",
attname);
ctxt->wellFormed = 0;
free(attname);
free(attvalue);
goto failed;
}
}
/*
* Add the pair to atts
*/
if (atts == NULL) {
maxatts = 10;
atts = (const CHAR **) malloc(maxatts * sizeof(CHAR *));
if (atts == NULL) {
fprintf(stderr, "malloc of %ld byte failed\n",
maxatts * (long)sizeof(CHAR *));
return(NULL);
}
} else if (nbatts + 2 < maxatts) {
maxatts *= 2;
atts = (const CHAR **) realloc(atts, maxatts * sizeof(CHAR *));
if (atts == NULL) {
fprintf(stderr, "realloc of %ld byte failed\n",
maxatts * (long)sizeof(CHAR *));
return(NULL);
}
}
atts[nbatts++] = attname;
atts[nbatts++] = attvalue;
atts[nbatts] = NULL;
atts[nbatts + 1] = NULL;
}
failed:
SKIP_BLANKS;
if ((cons == ctxt->input->consumed) && (q == CUR_PTR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStartTag: problem parsing attributes\n");
ctxt->wellFormed = 0;
break;
}
GROW;
}
/*
* SAX: Start of Element !
*/
if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL))
ctxt->sax->startElement(ctxt->userData, name, atts);
if (atts != NULL) {
for (i = 0;i < nbatts;i++) free((CHAR *) atts[i]);
free(atts);
}
return(name);
}
/**
* xmlParseEndTag:
* @ctxt: an XML parser context
* @tagname: the tag name as parsed in the opening tag.
*
* parse an end of tag
*
* [42] ETag ::= '</' Name S? '>'
*
* With namespace
*
* [NS 9] ETag ::= '</' QName S? '>'
*/
void
xmlParseEndTag(xmlParserCtxtPtr ctxt, CHAR *tagname) {
CHAR *name;
GROW;
if ((CUR != '<') || (NXT(1) != '/')) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseEndTag: '</' not found\n");
ctxt->wellFormed = 0;
return;
}
SKIP(2);
name = xmlParseName(ctxt);
/*
* We should definitely be at the ending "S? '>'" part
*/
GROW;
SKIP_BLANKS;
if ((!IS_CHAR(CUR)) || (CUR != '>')) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "End tag : expected '>'\n");
ctxt->wellFormed = 0;
} else
NEXT;
/*
* [ WFC: Element Type Match ]
* The Name in an element's end-tag must match the element type in the
* start-tag.
*
*/
if (xmlStrcmp(name, tagname)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Opening and ending tag mismatch: %s and %s\n", tagname, name);
ctxt->wellFormed = 0;
}
/*
* SAX: End of Tag
*/
if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
ctxt->sax->endElement(ctxt->userData, name);
if (name != NULL)
free(name);
return;
}
/**
* xmlParseCDSect:
* @ctxt: an XML parser context
*
* Parse escaped pure raw content.
*
* [18] CDSect ::= CDStart CData CDEnd
*
* [19] CDStart ::= '<![CDATA['
*
* [20] Data ::= (Char* - (Char* ']]>' Char*))
*
* [21] CDEnd ::= ']]>'
*/
void
xmlParseCDSect(xmlParserCtxtPtr ctxt) {
const CHAR *base;
CHAR r, s;
CHAR cur;
if ((NXT(0) == '<') && (NXT(1) == '!') &&
(NXT(2) == '[') && (NXT(3) == 'C') &&
(NXT(4) == 'D') && (NXT(5) == 'A') &&
(NXT(6) == 'T') && (NXT(7) == 'A') &&
(NXT(8) == '[')) {
SKIP(9);
} else
return;
ctxt->instate = XML_PARSER_CDATA_SECTION;
base = CUR_PTR;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CData section not finished\n%.50s\n", base);
ctxt->wellFormed = 0;
ctxt->instate = XML_PARSER_CONTENT;
return;
}
r = CUR;
NEXT;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CData section not finished\n%.50s\n", base);
ctxt->wellFormed = 0;
ctxt->instate = XML_PARSER_CONTENT;
return;
}
s = CUR;
NEXT;
cur = CUR;
while (IS_CHAR(cur) &&
((r != ']') || (s != ']') || (cur != '>'))) {
r = s;
s = cur;
NEXT;
cur = CUR;
}
ctxt->instate = XML_PARSER_CONTENT;
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "CData section not finished\n%.50s\n", base);
ctxt->wellFormed = 0;
return;
}
NEXT;
/*
* Ok the segment [base CUR_PTR] is to be consumed as chars.
*/
if (ctxt->sax != NULL) {
if (ctxt->sax->cdataBlock != NULL)
ctxt->sax->cdataBlock(ctxt->userData, base, (CUR_PTR - base) - 3);
}
}
/**
* xmlParseContent:
* @ctxt: an XML parser context
*
* Parse a content:
*
* [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
*/
void
xmlParseContent(xmlParserCtxtPtr ctxt) {
GROW;
while ((CUR != '<') || (NXT(1) != '/')) {
const CHAR *test = CUR_PTR;
int cons = ctxt->input->consumed;
CHAR tok = ctxt->token;
/*
* First case : a Processing Instruction.
*/
if ((CUR == '<') && (NXT(1) == '?')) {
xmlParsePI(ctxt);
}
/*
* Second case : a CDSection
*/
else if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == '[') && (NXT(3) == 'C') &&
(NXT(4) == 'D') && (NXT(5) == 'A') &&
(NXT(6) == 'T') && (NXT(7) == 'A') &&
(NXT(8) == '[')) {
xmlParseCDSect(ctxt);
}
/*
* Third case : a comment
*/
else if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == '-') && (NXT(3) == '-')) {
xmlParseComment(ctxt);
ctxt->instate = XML_PARSER_CONTENT;
}
/*
* Fourth case : a sub-element.
*/
else if (CUR == '<') {
xmlParseElement(ctxt);
}
/*
* Fifth case : a reference. If if has not been resolved,
* parsing returns it's Name, create the node
*/
else if (CUR == '&') {
xmlParseReference(ctxt);
}
/*
* Last case, text. Note that References are handled directly.
*/
else {
xmlParseCharData(ctxt, 0);
}
GROW;
/*
* Pop-up of finished entities.
*/
while ((CUR == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((cons == ctxt->input->consumed) && (test == CUR_PTR) &&
(tok == ctxt->token)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"detected an error in element content\n");
ctxt->wellFormed = 0;
break;
}
}
}
/**
* xmlParseElement:
* @ctxt: an XML parser context
*
* parse an XML element, this is highly recursive
*
* [39] element ::= EmptyElemTag | STag content ETag
*
* [ WFC: Element Type Match ]
* The Name in an element's end-tag must match the element type in the
* start-tag.
*
* [ VC: Element Valid ]
* An element is valid if there is a declaration matching elementdecl
* where the Name matches the element type and one of the following holds:
* - The declaration matches EMPTY and the element has no content.
* - The declaration matches children and the sequence of child elements
* belongs to the language generated by the regular expression in the
* content model, with optional white space (characters matching the
* nonterminal S) between each pair of child elements.
* - The declaration matches Mixed and the content consists of character
* data and child elements whose types match names in the content model.
* - The declaration matches ANY, and the types of any child elements have
* been declared.
*/
void
xmlParseElement(xmlParserCtxtPtr ctxt) {
const CHAR *openTag = CUR_PTR;
CHAR *name;
xmlParserNodeInfo node_info;
xmlNodePtr ret;
/* Capture start position */
if (ctxt->record_info) {
node_info.begin_pos = ctxt->input->consumed +
(CUR_PTR - ctxt->input->base);
node_info.begin_line = ctxt->input->line;
}
name = xmlParseStartTag(ctxt);
if (name == NULL) {
return;
}
ret = ctxt->node;
/*
* [ VC: Root Element Type ]
* The Name in the document type declaration must match the element
* type of the root element.
*/
if (ctxt->validate && ctxt->wellFormed && ctxt->myDoc &&
ctxt->node && (ctxt->node == ctxt->myDoc->root))
ctxt->valid &= xmlValidateRoot(&ctxt->vctxt, ctxt->myDoc);
/*
* Check for an Empty Element.
*/
if ((CUR == '/') && (NXT(1) == '>')) {
SKIP(2);
if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL))
ctxt->sax->endElement(ctxt->userData, name);
free(name);
return;
}
if (CUR == '>') {
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Couldn't find end of Start Tag\n%.30s\n",
openTag);
ctxt->wellFormed = 0;
/*
* end of parsing of this node.
*/
nodePop(ctxt);
free(name);
/*
* Capture end position and add node
*/
if ( ret != NULL && ctxt->record_info ) {
node_info.end_pos = ctxt->input->consumed +
(CUR_PTR - ctxt->input->base);
node_info.end_line = ctxt->input->line;
node_info.node = ret;
xmlParserAddNodeInfo(ctxt, &node_info);
}
return;
}
/*
* Parse the content of the element:
*/
xmlParseContent(ctxt);
if (!IS_CHAR(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Premature end of data in tag %.30s\n", openTag);
ctxt->wellFormed = 0;
/*
* end of parsing of this node.
*/
nodePop(ctxt);
free(name);
return;
}
/*
* parse the end of tag: '</' should be here.
*/
xmlParseEndTag(ctxt, name);
free(name);
/*
* Capture end position and add node
*/
if ( ret != NULL && ctxt->record_info ) {
node_info.end_pos = ctxt->input->consumed +
(CUR_PTR - ctxt->input->base);
node_info.end_line = ctxt->input->line;
node_info.node = ret;
xmlParserAddNodeInfo(ctxt, &node_info);
}
}
/**
* xmlParseVersionNum:
* @ctxt: an XML parser context
*
* parse the XML version value.
*
* [26] VersionNum ::= ([a-zA-Z0-9_.:] | '-')+
*
* Returns the string giving the XML version number, or NULL
*/
CHAR *
xmlParseVersionNum(xmlParserCtxtPtr ctxt) {
const CHAR *q = CUR_PTR;
CHAR *ret;
while (IS_CHAR(CUR) &&
(((CUR >= 'a') && (CUR <= 'z')) ||
((CUR >= 'A') && (CUR <= 'Z')) ||
((CUR >= '0') && (CUR <= '9')) ||
(CUR == '_') || (CUR == '.') ||
(CUR == ':') || (CUR == '-'))) NEXT;
ret = xmlStrndup(q, CUR_PTR - q);
return(ret);
}
/**
* xmlParseVersionInfo:
* @ctxt: an XML parser context
*
* parse the XML version.
*
* [24] VersionInfo ::= S 'version' Eq (' VersionNum ' | " VersionNum ")
*
* [25] Eq ::= S? '=' S?
*
* Returns the version string, e.g. "1.0"
*/
CHAR *
xmlParseVersionInfo(xmlParserCtxtPtr ctxt) {
CHAR *version = NULL;
const CHAR *q;
if ((CUR == 'v') && (NXT(1) == 'e') &&
(NXT(2) == 'r') && (NXT(3) == 's') &&
(NXT(4) == 'i') && (NXT(5) == 'o') &&
(NXT(6) == 'n')) {
SKIP(7);
SKIP_BLANKS;
if (CUR != '=') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseVersionInfo : expected '='\n");
ctxt->wellFormed = 0;
return(NULL);
}
NEXT;
SKIP_BLANKS;
if (CUR == '"') {
NEXT;
q = CUR_PTR;
version = xmlParseVersionNum(ctxt);
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
} else
NEXT;
} else if (CUR == '\''){
NEXT;
q = CUR_PTR;
version = xmlParseVersionNum(ctxt);
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
} else
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseVersionInfo : expected ' or \"\n");
ctxt->wellFormed = 0;
}
}
return(version);
}
/**
* xmlParseEncName:
* @ctxt: an XML parser context
*
* parse the XML encoding name
*
* [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
*
* Returns the encoding name value or NULL
*/
CHAR *
xmlParseEncName(xmlParserCtxtPtr ctxt) {
const CHAR *q = CUR_PTR;
CHAR *ret = NULL;
if (((CUR >= 'a') && (CUR <= 'z')) ||
((CUR >= 'A') && (CUR <= 'Z'))) {
NEXT;
while (IS_CHAR(CUR) &&
(((CUR >= 'a') && (CUR <= 'z')) ||
((CUR >= 'A') && (CUR <= 'Z')) ||
((CUR >= '0') && (CUR <= '9')) ||
(CUR == '-'))) NEXT;
ret = xmlStrndup(q, CUR_PTR - q);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Invalid XML encoding name\n");
ctxt->wellFormed = 0;
}
return(ret);
}
/**
* xmlParseEncodingDecl:
* @ctxt: an XML parser context
*
* parse the XML encoding declaration
*
* [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' | "'" EncName "'")
*
* TODO: this should setup the conversion filters.
*
* Returns the encoding value or NULL
*/
CHAR *
xmlParseEncodingDecl(xmlParserCtxtPtr ctxt) {
CHAR *encoding = NULL;
const CHAR *q;
SKIP_BLANKS;
if ((CUR == 'e') && (NXT(1) == 'n') &&
(NXT(2) == 'c') && (NXT(3) == 'o') &&
(NXT(4) == 'd') && (NXT(5) == 'i') &&
(NXT(6) == 'n') && (NXT(7) == 'g')) {
SKIP(8);
SKIP_BLANKS;
if (CUR != '=') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseEncodingDecl : expected '='\n");
ctxt->wellFormed = 0;
return(NULL);
}
NEXT;
SKIP_BLANKS;
if (CUR == '"') {
NEXT;
q = CUR_PTR;
encoding = xmlParseEncName(ctxt);
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
} else
NEXT;
} else if (CUR == '\''){
NEXT;
q = CUR_PTR;
encoding = xmlParseEncName(ctxt);
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
} else
NEXT;
} else if (CUR == '"'){
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEncodingDecl : expected ' or \"\n");
ctxt->wellFormed = 0;
}
}
return(encoding);
}
/**
* xmlParseSDDecl:
* @ctxt: an XML parser context
*
* parse the XML standalone declaration
*
* [32] SDDecl ::= S 'standalone' Eq
* (("'" ('yes' | 'no') "'") | ('"' ('yes' | 'no')'"'))
*
* [ VC: Standalone Document Declaration ]
* TODO The standalone document declaration must have the value "no"
* if any external markup declarations contain declarations of:
* - attributes with default values, if elements to which these
* attributes apply appear in the document without specifications
* of values for these attributes, or
* - entities (other than amp, lt, gt, apos, quot), if references
* to those entities appear in the document, or
* - attributes with values subject to normalization, where the
* attribute appears in the document with a value which will change
* as a result of normalization, or
* - element types with element content, if white space occurs directly
* within any instance of those types.
*
* Returns 1 if standalone, 0 otherwise
*/
int
xmlParseSDDecl(xmlParserCtxtPtr ctxt) {
int standalone = -1;
SKIP_BLANKS;
if ((CUR == 's') && (NXT(1) == 't') &&
(NXT(2) == 'a') && (NXT(3) == 'n') &&
(NXT(4) == 'd') && (NXT(5) == 'a') &&
(NXT(6) == 'l') && (NXT(7) == 'o') &&
(NXT(8) == 'n') && (NXT(9) == 'e')) {
SKIP(10);
SKIP_BLANKS;
if (CUR != '=') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML standalone declaration : expected '='\n");
ctxt->wellFormed = 0;
return(standalone);
}
NEXT;
SKIP_BLANKS;
if (CUR == '\''){
NEXT;
if ((CUR == 'n') && (NXT(1) == 'o')) {
standalone = 0;
SKIP(2);
} else if ((CUR == 'y') && (NXT(1) == 'e') &&
(NXT(2) == 's')) {
standalone = 1;
SKIP(3);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "standalone accepts only 'yes' or 'no'\n");
ctxt->wellFormed = 0;
}
if (CUR != '\'') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n");
ctxt->wellFormed = 0;
} else
NEXT;
} else if (CUR == '"'){
NEXT;
if ((CUR == 'n') && (NXT(1) == 'o')) {
standalone = 0;
SKIP(2);
} else if ((CUR == 'y') && (NXT(1) == 'e') &&
(NXT(2) == 's')) {
standalone = 1;
SKIP(3);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"standalone accepts only 'yes' or 'no'\n");
ctxt->wellFormed = 0;
}
if (CUR != '"') {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n");
ctxt->wellFormed = 0;
} else
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Standalone value not found\n");
ctxt->wellFormed = 0;
}
}
return(standalone);
}
/**
* xmlParseXMLDecl:
* @ctxt: an XML parser context
*
* parse an XML declaration header
*
* [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
*/
void
xmlParseXMLDecl(xmlParserCtxtPtr ctxt) {
CHAR *version;
/*
* We know that '<?xml' is here.
*/
SKIP(5);
if (!IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed after '<?xml'\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
/*
* We should have the VersionInfo here.
*/
version = xmlParseVersionInfo(ctxt);
if (version == NULL)
version = xmlCharStrdup(XML_DEFAULT_VERSION);
ctxt->version = xmlStrdup(version);
free(version);
/*
* We may have the encoding declaration
*/
if (!IS_BLANK(CUR)) {
if ((CUR == '?') && (NXT(1) == '>')) {
SKIP(2);
return;
}
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed here\n");
ctxt->wellFormed = 0;
}
ctxt->encoding = xmlParseEncodingDecl(ctxt);
/*
* We may have the standalone status.
*/
if ((ctxt->encoding != NULL) && (!IS_BLANK(CUR))) {
if ((CUR == '?') && (NXT(1) == '>')) {
SKIP(2);
return;
}
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed here\n");
ctxt->wellFormed = 0;
}
SKIP_BLANKS;
ctxt->standalone = xmlParseSDDecl(ctxt);
SKIP_BLANKS;
if ((CUR == '?') && (NXT(1) == '>')) {
SKIP(2);
} else if (CUR == '>') {
/* Deprecated old WD ... */
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "XML declaration must end-up with '?>'\n");
ctxt->wellFormed = 0;
NEXT;
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "parsing XML declaration: '?>' expected\n");
ctxt->wellFormed = 0;
MOVETO_ENDTAG(CUR_PTR);
NEXT;
}
}
/**
* xmlParseMisc:
* @ctxt: an XML parser context
*
* parse an XML Misc* optionnal field.
*
* [27] Misc ::= Comment | PI | S
*/
void
xmlParseMisc(xmlParserCtxtPtr ctxt) {
while (((CUR == '<') && (NXT(1) == '?')) ||
((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == '-') && (NXT(3) == '-')) ||
IS_BLANK(CUR)) {
if ((CUR == '<') && (NXT(1) == '?')) {
xmlParsePI(ctxt);
} else if (IS_BLANK(CUR)) {
NEXT;
} else
xmlParseComment(ctxt);
}
}
/**
* xmlParseDocument :
* @ctxt: an XML parser context
*
* parse an XML document (and build a tree if using the standard SAX
* interface).
*
* [1] document ::= prolog element Misc*
*
* [22] prolog ::= XMLDecl? Misc* (doctypedecl Misc*)?
*
* Returns 0, -1 in case of error. the parser context is augmented
* as a result of the parsing.
*/
int
xmlParseDocument(xmlParserCtxtPtr ctxt) {
xmlDefaultSAXHandlerInit();
GROW;
/*
* SAX: beginning of the document processing.
*/
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator);
/*
* TODO We should check for encoding here and plug-in some
* conversion code !!!!
*/
/*
* Wipe out everything which is before the first '<'
*/
if (IS_BLANK(CUR)) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Extra spaces at the beginning of the document are not allowed\n");
ctxt->wellFormed = 0;
SKIP_BLANKS;
}
if (CUR == 0) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Document is empty\n");
ctxt->wellFormed = 0;
}
/*
* Check for the XMLDecl in the Prolog.
*/
GROW;
if ((CUR == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l')) {
xmlParseXMLDecl(ctxt);
/* SKIP_EOL(cur); */
SKIP_BLANKS;
} else if ((CUR == '<') && (NXT(1) == '?') &&
(NXT(2) == 'X') && (NXT(3) == 'M') &&
(NXT(4) == 'L')) {
/*
* The first drafts were using <?XML and the final W3C REC
* now use <?xml ...
*/
xmlParseXMLDecl(ctxt);
/* SKIP_EOL(cur); */
SKIP_BLANKS;
} else {
ctxt->version = xmlCharStrdup(XML_DEFAULT_VERSION);
}
if ((ctxt->sax) && (ctxt->sax->startDocument))
ctxt->sax->startDocument(ctxt->userData);
/*
* The Misc part of the Prolog
*/
GROW;
xmlParseMisc(ctxt);
/*
* Then possibly doc type declaration(s) and more Misc
* (doctypedecl Misc*)?
*/
GROW;
if ((CUR == '<') && (NXT(1) == '!') &&
(NXT(2) == 'D') && (NXT(3) == 'O') &&
(NXT(4) == 'C') && (NXT(5) == 'T') &&
(NXT(6) == 'Y') && (NXT(7) == 'P') &&
(NXT(8) == 'E')) {
xmlParseDocTypeDecl(ctxt);
ctxt->instate = XML_PARSER_PROLOG;
xmlParseMisc(ctxt);
}
/*
* Time to start parsing the tree itself
*/
GROW;
ctxt->instate = XML_PARSER_CONTENT;
xmlParseElement(ctxt);
ctxt->instate = XML_PARSER_EPILOG;
/*
* The Misc part at the end
*/
xmlParseMisc(ctxt);
if (CUR != 0) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Extra content at the end of the document\n");
ctxt->wellFormed = 0;
}
ctxt->instate = XML_PARSER_EOF;
/*
* SAX: end of the document processing.
*/
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
if (! ctxt->wellFormed) return(-1);
return(0);
}
/************************************************************************
* *
* I/O front end functions to the parser *
* *
************************************************************************/
/**
* xmlCreateDocParserCtxt :
* @cur: a pointer to an array of CHAR
*
* Create a parser context for an XML in-memory document.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateDocParserCtxt(CHAR *cur) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr input;
xmlCharEncoding enc;
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
/*
* plug some encoding conversion routines here. !!!
*/
enc = xmlDetectCharEncoding(cur);
xmlSwitchEncoding(ctxt, enc);
input->base = cur;
input->cur = cur;
inputPush(ctxt, input);
return(ctxt);
}
/**
* xmlSAXParseDoc :
* @sax: the SAX handler block
* @cur: a pointer to an array of CHAR
* @recovery: work in recovery mode, i.e. tries to read no Well Formed
* documents
*
* parse an XML in-memory document and build a tree.
* It use the given SAX function block to handle the parsing callback.
* If sax is NULL, fallback to the default DOM tree building routines.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseDoc(xmlSAXHandlerPtr sax, CHAR *cur, int recovery) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
if (cur == NULL) return(NULL);
ctxt = xmlCreateDocParserCtxt(cur);
if (ctxt == NULL) return(NULL);
if (sax != NULL) {
ctxt->sax = sax;
ctxt->userData = NULL;
}
xmlParseDocument(ctxt);
if ((ctxt->wellFormed) || recovery) ret = ctxt->myDoc;
else {
ret = NULL;
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL)
ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* xmlParseDoc :
* @cur: a pointer to an array of CHAR
*
* parse an XML in-memory document and build a tree.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlParseDoc(CHAR *cur) {
return(xmlSAXParseDoc(NULL, cur, 0));
}
/**
* xmlSAXParseDTD :
* @sax: the SAX handler block
* @ExternalID: a NAME* containing the External ID of the DTD
* @SystemID: a NAME* containing the URL to the DTD
*
* Load and parse an external subset.
*
* Returns the resulting xmlDtdPtr or NULL in case of error.
*/
xmlDtdPtr
xmlSAXParseDTD(xmlSAXHandlerPtr sax, const CHAR *ExternalID,
const CHAR *SystemID) {
xmlDtdPtr ret = NULL;
xmlParserCtxtPtr ctxt;
xmlParserInputPtr input = NULL;
xmlCharEncoding enc;
if ((ExternalID == NULL) && (SystemID == NULL)) return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
/*
* Set-up the SAX context
*/
if (ctxt == NULL) return(NULL);
if (sax != NULL) {
if (ctxt->sax != NULL)
free(ctxt->sax);
ctxt->sax = sax;
ctxt->userData = NULL;
}
/*
* Ask the Entity resolver to load the damn thing
*/
if ((ctxt->sax != NULL) && (ctxt->sax->resolveEntity != NULL))
input = ctxt->sax->resolveEntity(ctxt->userData, ExternalID, SystemID);
if (input == NULL) {
if (sax != NULL) ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(NULL);
}
/*
* plug some encoding conversion routines here. !!!
*/
xmlPushInput(ctxt, input);
enc = xmlDetectCharEncoding(ctxt->input->cur);
xmlSwitchEncoding(ctxt, enc);
if (input->filename == NULL)
input->filename = (char *) xmlStrdup(SystemID); /* !!!!!!! */
input->line = 1;
input->col = 1;
input->base = ctxt->input->cur;
input->cur = ctxt->input->cur;
input->free = NULL;
/*
* let's parse that entity knowing it's an external subset.
*/
xmlParseExternalSubset(ctxt, ExternalID, SystemID);
if (ctxt->myDoc != NULL) {
if (ctxt->wellFormed) {
ret = ctxt->myDoc->intSubset;
ctxt->myDoc->intSubset = NULL;
} else {
ret = NULL;
}
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL) ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* xmlParseDTD :
* @ExternalID: a NAME* containing the External ID of the DTD
* @SystemID: a NAME* containing the URL to the DTD
*
* Load and parse an external subset.
*
* Returns the resulting xmlDtdPtr or NULL in case of error.
*/
xmlDtdPtr
xmlParseDTD(const CHAR *ExternalID, const CHAR *SystemID) {
return(xmlSAXParseDTD(NULL, ExternalID, SystemID));
}
/**
* xmlRecoverDoc :
* @cur: a pointer to an array of CHAR
*
* parse an XML in-memory document and build a tree.
* In the case the document is not Well Formed, a tree is built anyway
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlRecoverDoc(CHAR *cur) {
return(xmlSAXParseDoc(NULL, cur, 1));
}
/**
* xmlCreateFileParserCtxt :
* @filename: the filename
*
* Create a parser context for a file content.
* Automatic support for ZLIB/Compress compressed document is provided
* by default if found at compile-time.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateFileParserCtxt(const char *filename)
{
xmlParserCtxtPtr ctxt;
xmlParserInputPtr inputStream;
xmlParserInputBufferPtr buf;
char *directory = NULL;
buf = xmlParserInputBufferCreateFilename(filename, XML_CHAR_ENCODING_NONE);
if (buf == NULL) return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
inputStream = xmlNewInputStream(ctxt);
if (inputStream == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
inputStream->filename = strdup(filename);
inputStream->buf = buf;
inputStream->base = inputStream->buf->buffer->content;
inputStream->cur = inputStream->buf->buffer->content;
inputPush(ctxt, inputStream);
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory(filename);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = directory;
return(ctxt);
}
/**
* xmlSAXParseFile :
* @sax: the SAX handler block
* @filename: the filename
* @recovery: work in recovery mode, i.e. tries to read no Well Formed
* documents
*
* parse an XML file and build a tree. Automatic support for ZLIB/Compress
* compressed document is provided by default if found at compile-time.
* It use the given SAX function block to handle the parsing callback.
* If sax is NULL, fallback to the default DOM tree building routines.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseFile(xmlSAXHandlerPtr sax, const char *filename,
int recovery) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
char *directory = NULL;
ctxt = xmlCreateFileParserCtxt(filename);
if (ctxt == NULL) return(NULL);
if (sax != NULL) {
if (ctxt->sax != NULL)
free(ctxt->sax);
ctxt->sax = sax;
ctxt->userData = NULL;
}
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory(filename);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = (char *) xmlStrdup((CHAR *) directory); /* !!!!!!! */
xmlParseDocument(ctxt);
if ((ctxt->wellFormed) || recovery) ret = ctxt->myDoc;
else {
ret = NULL;
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL)
ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* xmlParseFile :
* @filename: the filename
*
* parse an XML file and build a tree. Automatic support for ZLIB/Compress
* compressed document is provided by default if found at compile-time.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlParseFile(const char *filename) {
return(xmlSAXParseFile(NULL, filename, 0));
}
/**
* xmlRecoverFile :
* @filename: the filename
*
* parse an XML file and build a tree. Automatic support for ZLIB/Compress
* compressed document is provided by default if found at compile-time.
* In the case the document is not Well Formed, a tree is built anyway
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlRecoverFile(const char *filename) {
return(xmlSAXParseFile(NULL, filename, 1));
}
/**
* xmlCreateMemoryParserCtxt :
* @buffer: an pointer to a char array
* @size: the siwe of the array
*
* Create a parser context for an XML in-memory document.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateMemoryParserCtxt(char *buffer, int size) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr input;
xmlCharEncoding enc;
buffer[size - 1] = '\0';
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
input->filename = NULL;
input->line = 1;
input->col = 1;
input->buf = NULL;
input->consumed = 0;
/*
* plug some encoding conversion routines here. !!!
*/
enc = xmlDetectCharEncoding(BAD_CAST buffer);
xmlSwitchEncoding(ctxt, enc);
input->base = BAD_CAST buffer;
input->cur = BAD_CAST buffer;
input->free = NULL;
inputPush(ctxt, input);
return(ctxt);
}
/**
* xmlSAXParseMemory :
* @sax: the SAX handler block
* @buffer: an pointer to a char array
* @size: the siwe of the array
* @recovery: work in recovery mode, i.e. tries to read no Well Formed
* documents
*
* parse an XML in-memory block and use the given SAX function block
* to handle the parsing callback. If sax is NULL, fallback to the default
* DOM tree building routines.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseMemory(xmlSAXHandlerPtr sax, char *buffer, int size, int recovery) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
ctxt = xmlCreateMemoryParserCtxt(buffer, size);
if (ctxt == NULL) return(NULL);
if (sax != NULL) {
ctxt->sax = sax;
ctxt->userData = NULL;
}
xmlParseDocument(ctxt);
if ((ctxt->wellFormed) || recovery) ret = ctxt->myDoc;
else {
ret = NULL;
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL)
ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* xmlParseMemory :
* @buffer: an pointer to a char array
* @size: the size of the array
*
* parse an XML in-memory block and build a tree.
*
* Returns the resulting document tree
*/
xmlDocPtr xmlParseMemory(char *buffer, int size) {
return(xmlSAXParseMemory(NULL, buffer, size, 0));
}
/**
* xmlRecoverMemory :
* @buffer: an pointer to a char array
* @size: the size of the array
*
* parse an XML in-memory block and build a tree.
* In the case the document is not Well Formed, a tree is built anyway
*
* Returns the resulting document tree
*/
xmlDocPtr xmlRecoverMemory(char *buffer, int size) {
return(xmlSAXParseMemory(NULL, buffer, size, 1));
}
/**
* xmlSetupParserForBuffer:
* @ctxt: an XML parser context
* @buffer: a CHAR * buffer
* @filename: a file name
*
* Setup the parser context to parse a new buffer; Clears any prior
* contents from the parser context. The buffer parameter must not be
* NULL, but the filename parameter can be
*/
void
xmlSetupParserForBuffer(xmlParserCtxtPtr ctxt, const CHAR* buffer,
const char* filename)
{
xmlParserInputPtr input;
input = xmlNewInputStream(ctxt);
if (input == NULL) {
perror("malloc");
free(ctxt);
exit(1);
}
xmlClearParserCtxt(ctxt);
if (filename != NULL)
input->filename = strdup(filename);
input->base = buffer;
input->cur = buffer;
inputPush(ctxt, input);
}
/************************************************************************
* *
* Miscelaneous *
* *
************************************************************************/
/**
* xmlParserFindNodeInfo:
* @ctxt: an XML parser context
* @node: an XML node within the tree
*
* Find the parser node info struct for a given node
*
* Returns an xmlParserNodeInfo block pointer or NULL
*/
const xmlParserNodeInfo* xmlParserFindNodeInfo(const xmlParserCtxt* ctx,
const xmlNode* node)
{
unsigned long pos;
/* Find position where node should be at */
pos = xmlParserFindNodeInfoIndex(&ctx->node_seq, node);
if ( ctx->node_seq.buffer[pos].node == node )
return &ctx->node_seq.buffer[pos];
else
return NULL;
}
/**
* xmlInitNodeInfoSeq :
* @seq: a node info sequence pointer
*
* -- Initialize (set to initial state) node info sequence
*/
void
xmlInitNodeInfoSeq(xmlParserNodeInfoSeqPtr seq)
{
seq->length = 0;
seq->maximum = 0;
seq->buffer = NULL;
}
/**
* xmlClearNodeInfoSeq :
* @seq: a node info sequence pointer
*
* -- Clear (release memory and reinitialize) node
* info sequence
*/
void
xmlClearNodeInfoSeq(xmlParserNodeInfoSeqPtr seq)
{
if ( seq->buffer != NULL )
free(seq->buffer);
xmlInitNodeInfoSeq(seq);
}
/**
* xmlParserFindNodeInfoIndex:
* @seq: a node info sequence pointer
* @node: an XML node pointer
*
*
* xmlParserFindNodeInfoIndex : Find the index that the info record for
* the given node is or should be at in a sorted sequence
*
* Returns a long indicating the position of the record
*/
unsigned long xmlParserFindNodeInfoIndex(const xmlParserNodeInfoSeq* seq,
const xmlNode* node)
{
unsigned long upper, lower, middle;
int found = 0;
/* Do a binary search for the key */
lower = 1;
upper = seq->length;
middle = 0;
while ( lower <= upper && !found) {
middle = lower + (upper - lower) / 2;
if ( node == seq->buffer[middle - 1].node )
found = 1;
else if ( node < seq->buffer[middle - 1].node )
upper = middle - 1;
else
lower = middle + 1;
}
/* Return position */
if ( middle == 0 || seq->buffer[middle - 1].node < node )
return middle;
else
return middle - 1;
}
/**
* xmlParserAddNodeInfo:
* @ctxt: an XML parser context
* @info: a node info sequence pointer
*
* Insert node info record into the sorted sequence
*/
void
xmlParserAddNodeInfo(xmlParserCtxtPtr ctxt,
const xmlParserNodeInfo* info)
{
unsigned long pos;
static unsigned int block_size = 5;
/* Find pos and check to see if node is already in the sequence */
pos = xmlParserFindNodeInfoIndex(&ctxt->node_seq, info->node);
if ( pos < ctxt->node_seq.length
&& ctxt->node_seq.buffer[pos].node == info->node ) {
ctxt->node_seq.buffer[pos] = *info;
}
/* Otherwise, we need to add new node to buffer */
else {
/* Expand buffer by 5 if needed */
if ( ctxt->node_seq.length + 1 > ctxt->node_seq.maximum ) {
xmlParserNodeInfo* tmp_buffer;
unsigned int byte_size = (sizeof(*ctxt->node_seq.buffer)
*(ctxt->node_seq.maximum + block_size));
if ( ctxt->node_seq.buffer == NULL )
tmp_buffer = (xmlParserNodeInfo*)malloc(byte_size);
else
tmp_buffer = (xmlParserNodeInfo*)realloc(ctxt->node_seq.buffer, byte_size);
if ( tmp_buffer == NULL ) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Out of memory\n");
return;
}
ctxt->node_seq.buffer = tmp_buffer;
ctxt->node_seq.maximum += block_size;
}
/* If position is not at end, move elements out of the way */
if ( pos != ctxt->node_seq.length ) {
unsigned long i;
for ( i = ctxt->node_seq.length; i > pos; i-- )
ctxt->node_seq.buffer[i] = ctxt->node_seq.buffer[i - 1];
}
/* Copy element and increase length */
ctxt->node_seq.buffer[pos] = *info;
ctxt->node_seq.length++;
}
}
/**
* xmlSubstituteEntitiesDefault :
* @val: int 0 or 1
*
* Set and return the previous value for default entity support.
* Initially the parser always keep entity references instead of substituting
* entity values in the output. This function has to be used to change the
* default parser behaviour
* SAX::subtituteEntities() has to be used for changing that on a file by
* file basis.
*
* Returns the last value for 0 for no substitution, 1 for substitution.
*/
int
xmlSubstituteEntitiesDefault(int val) {
int old = xmlSubstituteEntitiesDefaultValue;
xmlSubstituteEntitiesDefaultValue = val;
return(old);
}