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fuchsia / third_party / libxml2 / refs/heads/upstream/LIBXML2_2_5_X / . / parser.c
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/*
* parser.c : an XML 1.0 parser, namespaces and validity support are mostly
* implemented on top of the SAX interfaces
*
* References:
* The XML specification:
* http://www.w3.org/TR/REC-xml
* Original 1.0 version:
* http://www.w3.org/TR/1998/REC-xml-19980210
* XML second edition working draft
* http://www.w3.org/TR/2000/WD-xml-2e-20000814
*
* Okay this is a big file, the parser core is around 7000 lines, then it
* is followed by the progressive parser top routines, then the various
* high level APIs to call the parser and a few miscellaneous functions.
* A number of helper functions and deprecated ones have been moved to
* parserInternals.c to reduce this file size.
* As much as possible the functions are associated with their relative
* production in the XML specification. A few productions defining the
* different ranges of character are actually implanted either in
* parserInternals.h or parserInternals.c
* The DOM tree build is realized from the default SAX callbacks in
* the module SAX.c.
* The routines doing the validation checks are in valid.c and called either
* from the SAX callbacks or as standalone functions using a preparsed
* document.
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*/
#define IN_LIBXML
#include "libxml.h"
#if defined(WIN32) && !defined (__CYGWIN__)
#define XML_DIR_SEP '\\'
#else
#define XML_DIR_SEP '/'
#endif
#include <stdlib.h>
#include <string.h>
#include <libxml/xmlmemory.h>
#include <libxml/threads.h>
#include <libxml/globals.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/valid.h>
#include <libxml/entities.h>
#include <libxml/xmlerror.h>
#include <libxml/encoding.h>
#include <libxml/xmlIO.h>
#include <libxml/uri.h>
#ifdef LIBXML_CATALOG_ENABLED
#include <libxml/catalog.h>
#endif
#ifdef HAVE_CTYPE_H
#include <ctype.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
/**
* MAX_DEPTH:
*
* arbitrary depth limit for the XML documents that we allow to
* process. This is not a limitation of the parser but a safety
* boundary feature.
*/
#define MAX_DEPTH 1024
#define XML_PARSER_BIG_BUFFER_SIZE 300
#define XML_PARSER_BUFFER_SIZE 100
#define SAX_COMPAT_MODE BAD_CAST "SAX compatibility mode document"
/*
* List of XML prefixed PI allowed by W3C specs
*/
static const char *xmlW3CPIs[] = {
"xml-stylesheet",
NULL
};
/* DEPR void xmlParserHandleReference(xmlParserCtxtPtr ctxt); */
xmlEntityPtr xmlParseStringPEReference(xmlParserCtxtPtr ctxt,
const xmlChar **str);
static int
xmlParseExternalEntityPrivate(xmlDocPtr doc, xmlParserCtxtPtr oldctxt,
xmlSAXHandlerPtr sax,
void *user_data, int depth, const xmlChar *URL,
const xmlChar *ID, xmlNodePtr *list);
static void
xmlAddEntityReference(xmlEntityPtr ent, xmlNodePtr firstNode,
xmlNodePtr lastNode);
static int
xmlParseBalancedChunkMemoryInternal(xmlParserCtxtPtr oldctxt,
const xmlChar *string, void *user_data, xmlNodePtr *lst);
/************************************************************************
* *
* Parser stacks related functions and macros *
* *
************************************************************************/
xmlEntityPtr xmlParseStringEntityRef(xmlParserCtxtPtr ctxt,
const xmlChar ** str);
/**
* inputPush:
* @ctxt: an XML parser context
* @value: the parser input
*
* Pushes a new parser input on top of the input stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
extern int
inputPush(xmlParserCtxtPtr ctxt, xmlParserInputPtr value)
{
if (ctxt->inputNr >= ctxt->inputMax) {
ctxt->inputMax *= 2;
ctxt->inputTab =
(xmlParserInputPtr *) xmlRealloc(ctxt->inputTab,
ctxt->inputMax *
sizeof(ctxt->inputTab[0]));
if (ctxt->inputTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (0);
}
}
ctxt->inputTab[ctxt->inputNr] = value;
ctxt->input = value;
return (ctxt->inputNr++);
}
/**
* inputPop:
* @ctxt: an XML parser context
*
* Pops the top parser input from the input stack
*
* Returns the input just removed
*/
extern xmlParserInputPtr
inputPop(xmlParserCtxtPtr ctxt)
{
xmlParserInputPtr ret;
if (ctxt->inputNr <= 0)
return (0);
ctxt->inputNr--;
if (ctxt->inputNr > 0)
ctxt->input = ctxt->inputTab[ctxt->inputNr - 1];
else
ctxt->input = NULL;
ret = ctxt->inputTab[ctxt->inputNr];
ctxt->inputTab[ctxt->inputNr] = 0;
return (ret);
}
/**
* nodePush:
* @ctxt: an XML parser context
* @value: the element node
*
* Pushes a new element node on top of the node stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
extern int
nodePush(xmlParserCtxtPtr ctxt, xmlNodePtr value)
{
if (ctxt->nodeNr >= ctxt->nodeMax) {
ctxt->nodeMax *= 2;
ctxt->nodeTab =
(xmlNodePtr *) xmlRealloc(ctxt->nodeTab,
ctxt->nodeMax *
sizeof(ctxt->nodeTab[0]));
if (ctxt->nodeTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (0);
}
}
#ifdef MAX_DEPTH
if (ctxt->nodeNr > MAX_DEPTH) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Excessive depth in document: change MAX_DEPTH = %d\n",
MAX_DEPTH);
ctxt->wellFormed = 0;
ctxt->instate = XML_PARSER_EOF;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(0);
}
#endif
ctxt->nodeTab[ctxt->nodeNr] = value;
ctxt->node = value;
return (ctxt->nodeNr++);
}
/**
* nodePop:
* @ctxt: an XML parser context
*
* Pops the top element node from the node stack
*
* Returns the node just removed
*/
extern xmlNodePtr
nodePop(xmlParserCtxtPtr ctxt)
{
xmlNodePtr ret;
if (ctxt->nodeNr <= 0)
return (0);
ctxt->nodeNr--;
if (ctxt->nodeNr > 0)
ctxt->node = ctxt->nodeTab[ctxt->nodeNr - 1];
else
ctxt->node = NULL;
ret = ctxt->nodeTab[ctxt->nodeNr];
ctxt->nodeTab[ctxt->nodeNr] = 0;
return (ret);
}
/**
* namePush:
* @ctxt: an XML parser context
* @value: the element name
*
* Pushes a new element name on top of the name stack
*
* Returns 0 in case of error, the index in the stack otherwise
*/
extern int
namePush(xmlParserCtxtPtr ctxt, xmlChar * value)
{
if (ctxt->nameNr >= ctxt->nameMax) {
ctxt->nameMax *= 2;
ctxt->nameTab =
(xmlChar * *)xmlRealloc(ctxt->nameTab,
ctxt->nameMax *
sizeof(ctxt->nameTab[0]));
if (ctxt->nameTab == NULL) {
xmlGenericError(xmlGenericErrorContext, "realloc failed !\n");
return (0);
}
}
ctxt->nameTab[ctxt->nameNr] = value;
ctxt->name = value;
return (ctxt->nameNr++);
}
/**
* namePop:
* @ctxt: an XML parser context
*
* Pops the top element name from the name stack
*
* Returns the name just removed
*/
extern xmlChar *
namePop(xmlParserCtxtPtr ctxt)
{
xmlChar *ret;
if (ctxt->nameNr <= 0)
return (0);
ctxt->nameNr--;
if (ctxt->nameNr > 0)
ctxt->name = ctxt->nameTab[ctxt->nameNr - 1];
else
ctxt->name = NULL;
ret = ctxt->nameTab[ctxt->nameNr];
ctxt->nameTab[ctxt->nameNr] = 0;
return (ret);
}
static int spacePush(xmlParserCtxtPtr ctxt, int val) {
if (ctxt->spaceNr >= ctxt->spaceMax) {
ctxt->spaceMax *= 2;
ctxt->spaceTab = (int *) xmlRealloc(ctxt->spaceTab,
ctxt->spaceMax * sizeof(ctxt->spaceTab[0]));
if (ctxt->spaceTab == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc failed !\n");
return(0);
}
}
ctxt->spaceTab[ctxt->spaceNr] = val;
ctxt->space = &ctxt->spaceTab[ctxt->spaceNr];
return(ctxt->spaceNr++);
}
static int spacePop(xmlParserCtxtPtr ctxt) {
int ret;
if (ctxt->spaceNr <= 0) return(0);
ctxt->spaceNr--;
if (ctxt->spaceNr > 0)
ctxt->space = &ctxt->spaceTab[ctxt->spaceNr - 1];
else
ctxt->space = NULL;
ret = ctxt->spaceTab[ctxt->spaceNr];
ctxt->spaceTab[ctxt->spaceNr] = -1;
return(ret);
}
/*
* Macros for accessing the content. Those should be used only by the parser,
* and not exported.
*
* Dirty macros, i.e. one often need to make assumption on the context to
* use them
*
* CUR_PTR return the current pointer to the xmlChar to be parsed.
* To be used with extreme caution since operations consuming
* characters may move the input buffer to a different location !
* CUR returns the current xmlChar value, i.e. a 8 bit value if compiled
* This should be used internally by the parser
* only to compare to ASCII values otherwise it would break when
* running with UTF-8 encoding.
* RAW same as CUR but in the input buffer, bypass any token
* extraction that may have been done
* NXT(n) returns the n'th next xmlChar. Same as CUR is should be used only
* to compare on ASCII based substring.
* SKIP(n) Skip n xmlChar, and must also be used only to skip ASCII defined
* strings without newlines within the parser.
* NEXT1(l) Skip 1 xmlChar, and must also be used only to skip 1 non-newline ASCII
* defined char within the parser.
* Clean macros, not dependent of an ASCII context, expect UTF-8 encoding
*
* NEXT Skip to the next character, this does the proper decoding
* in UTF-8 mode. It also pop-up unfinished entities on the fly.
* NEXTL(l) Skip the current unicode character of l xmlChars long.
* CUR_CHAR(l) returns the current unicode character (int), set l
* to the number of xmlChars used for the encoding [0-5].
* CUR_SCHAR same but operate on a string instead of the context
* COPY_BUF copy the current unicode char to the target buffer, increment
* the index
* GROW, SHRINK handling of input buffers
*/
#define RAW (*ctxt->input->cur)
#define CUR (*ctxt->input->cur)
#define NXT(val) ctxt->input->cur[(val)]
#define CUR_PTR ctxt->input->cur
#define SKIP(val) do { \
ctxt->nbChars += (val),ctxt->input->cur += (val),ctxt->input->col+=(val); \
if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
if ((*ctxt->input->cur == 0) && \
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) \
xmlPopInput(ctxt); \
} while (0)
#define SHRINK if ((ctxt->progressive == 0) && \
(ctxt->input->cur - ctxt->input->base > INPUT_CHUNK) && \
(ctxt->input->end - ctxt->input->cur < INPUT_CHUNK)) \
xmlSHRINK (ctxt);
static void xmlSHRINK (xmlParserCtxtPtr ctxt) {
xmlParserInputShrink(ctxt->input);
if ((*ctxt->input->cur == 0) &&
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0))
xmlPopInput(ctxt);
}
#define GROW if ((ctxt->progressive == 0) && \
(ctxt->input->end - ctxt->input->cur < INPUT_CHUNK)) \
xmlGROW (ctxt);
static void xmlGROW (xmlParserCtxtPtr ctxt) {
xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
if ((*ctxt->input->cur == 0) &&
(xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0))
xmlPopInput(ctxt);
}
#define SKIP_BLANKS xmlSkipBlankChars(ctxt)
#define NEXT xmlNextChar(ctxt)
#define NEXT1 { \
ctxt->input->col++; \
ctxt->input->cur++; \
ctxt->nbChars++; \
if (*ctxt->input->cur == 0) \
xmlParserInputGrow(ctxt->input, INPUT_CHUNK); \
}
#define NEXTL(l) do { \
if (*(ctxt->input->cur) == '\n') { \
ctxt->input->line++; ctxt->input->col = 1; \
} else ctxt->input->col++; \
ctxt->input->cur += l; \
if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
} while (0)
#define CUR_CHAR(l) xmlCurrentChar(ctxt, &l)
#define CUR_SCHAR(s, l) xmlStringCurrentChar(ctxt, s, &l)
#define COPY_BUF(l,b,i,v) \
if (l == 1) b[i++] = (xmlChar) v; \
else i += xmlCopyCharMultiByte(&b[i],v)
/**
* xmlSkipBlankChars:
* @ctxt: the XML parser context
*
* skip all blanks character found at that point in the input streams.
* It pops up finished entities in the process if allowable at that point.
*
* Returns the number of space chars skipped
*/
int
xmlSkipBlankChars(xmlParserCtxtPtr ctxt) {
int res = 0;
/*
* It's Okay to use CUR/NEXT here since all the blanks are on
* the ASCII range.
*/
if ((ctxt->inputNr == 1) && (ctxt->instate != XML_PARSER_DTD)) {
const xmlChar *cur;
/*
* if we are in the document content, go really fast
*/
cur = ctxt->input->cur;
while (IS_BLANK(*cur)) {
if (*cur == '\n') {
ctxt->input->line++; ctxt->input->col = 1;
}
cur++;
res++;
if (*cur == 0) {
ctxt->input->cur = cur;
xmlParserInputGrow(ctxt->input, INPUT_CHUNK);
cur = ctxt->input->cur;
}
}
ctxt->input->cur = cur;
} else {
int cur;
do {
cur = CUR;
while (IS_BLANK(cur)) { /* CHECKED tstblanks.xml */
NEXT;
cur = CUR;
res++;
}
while ((cur == 0) && (ctxt->inputNr > 1) &&
(ctxt->instate != XML_PARSER_COMMENT)) {
xmlPopInput(ctxt);
cur = CUR;
}
/*
* Need to handle support of entities branching here
*/
if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt);
} while (IS_BLANK(cur)); /* CHECKED tstblanks.xml */
}
return(res);
}
/************************************************************************
* *
* Commodity functions to handle entities *
* *
************************************************************************/
/**
* 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 xmlChar in the parser context
*/
xmlChar
xmlPopInput(xmlParserCtxtPtr ctxt) {
if (ctxt->inputNr == 1) return(0); /* End of main Input */
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"Popping input %d\n", ctxt->inputNr);
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;
if (xmlParserDebugEntities) {
if ((ctxt->input != NULL) && (ctxt->input->filename))
xmlGenericError(xmlGenericErrorContext,
"%s(%d): ", ctxt->input->filename,
ctxt->input->line);
xmlGenericError(xmlGenericErrorContext,
"Pushing input %d : %.30s\n", ctxt->inputNr+1, input->cur);
}
inputPush(ctxt, input);
GROW;
}
/**
* 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), 0 in case of error
*/
int
xmlParseCharRef(xmlParserCtxtPtr ctxt) {
unsigned int val = 0;
int count = 0;
/*
* Using RAW/CUR/NEXT is okay since we are working on ASCII range here
*/
if ((RAW == '&') && (NXT(1) == '#') &&
(NXT(2) == 'x')) {
SKIP(3);
GROW;
while (RAW != ';') { /* loop blocked by count */
if (count++ > 20) {
count = 0;
GROW;
}
if ((RAW >= '0') && (RAW <= '9'))
val = val * 16 + (CUR - '0');
else if ((RAW >= 'a') && (RAW <= 'f') && (count < 20))
val = val * 16 + (CUR - 'a') + 10;
else if ((RAW >= 'A') && (RAW <= 'F') && (count < 20))
val = val * 16 + (CUR - 'A') + 10;
else {
ctxt->errNo = XML_ERR_INVALID_HEX_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid hexadecimal value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
val = 0;
break;
}
NEXT;
count++;
}
if (RAW == ';') {
/* on purpose to avoid reentrancy problems with NEXT and SKIP */
ctxt->input->col++;
ctxt->nbChars ++;
ctxt->input->cur++;
}
} else if ((RAW == '&') && (NXT(1) == '#')) {
SKIP(2);
GROW;
while (RAW != ';') { /* loop blocked by count */
if (count++ > 20) {
count = 0;
GROW;
}
if ((RAW >= '0') && (RAW <= '9'))
val = val * 10 + (CUR - '0');
else {
ctxt->errNo = XML_ERR_INVALID_DEC_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid decimal value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
val = 0;
break;
}
NEXT;
count++;
}
if (RAW == ';') {
/* on purpose to avoid reentrancy problems with NEXT and SKIP */
ctxt->input->col++;
ctxt->nbChars ++;
ctxt->input->cur++;
}
} else {
ctxt->errNo = XML_ERR_INVALID_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* [ WFC: Legal Character ]
* Characters referred to using character references must match the
* production for Char.
*/
if (IS_CHAR(val)) {
return(val);
} else {
ctxt->errNo = XML_ERR_INVALID_CHAR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseCharRef: invalid xmlChar value %d\n",
val);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
return(0);
}
/**
* xmlParseStringCharRef:
* @ctxt: an XML parser context
* @str: a pointer to an index in the string
*
* parse Reference declarations, variant parsing from a string rather
* than an an input flow.
*
* [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), 0 in case of error, str will be
* updated to the current value of the index
*/
static int
xmlParseStringCharRef(xmlParserCtxtPtr ctxt, const xmlChar **str) {
const xmlChar *ptr;
xmlChar cur;
int val = 0;
if ((str == NULL) || (*str == NULL)) return(0);
ptr = *str;
cur = *ptr;
if ((cur == '&') && (ptr[1] == '#') && (ptr[2] == 'x')) {
ptr += 3;
cur = *ptr;
while (cur != ';') { /* Non input consuming loop */
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 {
ctxt->errNo = XML_ERR_INVALID_HEX_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringCharRef: invalid hexadecimal value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
val = 0;
break;
}
ptr++;
cur = *ptr;
}
if (cur == ';')
ptr++;
} else if ((cur == '&') && (ptr[1] == '#')){
ptr += 2;
cur = *ptr;
while (cur != ';') { /* Non input consuming loops */
if ((cur >= '0') && (cur <= '9'))
val = val * 10 + (cur - '0');
else {
ctxt->errNo = XML_ERR_INVALID_DEC_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringCharRef: invalid decimal value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
val = 0;
break;
}
ptr++;
cur = *ptr;
}
if (cur == ';')
ptr++;
} else {
ctxt->errNo = XML_ERR_INVALID_CHARREF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringCharRef: invalid value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(0);
}
*str = ptr;
/*
* [ WFC: Legal Character ]
* Characters referred to using character references must match the
* production for Char.
*/
if (IS_CHAR(val)) {
return(val);
} else {
ctxt->errNo = XML_ERR_INVALID_CHAR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringCharRef: invalid xmlChar value %d\n", val);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
return(0);
}
/**
* xmlNewBlanksWrapperInputStream:
* @ctxt: an XML parser context
* @entity: an Entity pointer
*
* Create a new input stream for wrapping
* blanks around a PEReference
*
* Returns the new input stream or NULL
*/
static void deallocblankswrapper (xmlChar *str) {xmlFree(str);}
static xmlParserInputPtr
xmlNewBlanksWrapperInputStream(xmlParserCtxtPtr ctxt, xmlEntityPtr entity) {
xmlParserInputPtr input;
xmlChar *buffer;
size_t length;
if (entity == NULL) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"internal: xmlNewBlanksWrapperInputStream entity = NULL\n");
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
return(NULL);
}
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"new blanks wrapper for entity: %s\n", entity->name);
input = xmlNewInputStream(ctxt);
if (input == NULL) {
return(NULL);
}
length = xmlStrlen(entity->name) + 5;
buffer = xmlMallocAtomic(length);
if (buffer == NULL) {
return(NULL);
}
buffer [0] = ' ';
buffer [1] = '%';
buffer [length-3] = ';';
buffer [length-2] = ' ';
buffer [length-1] = 0;
memcpy(buffer + 2, entity->name, length - 5);
input->free = deallocblankswrapper;
input->base = buffer;
input->cur = buffer;
input->length = length;
input->end = &buffer[length];
return(input);
}
/**
* xmlParserHandlePEReference:
* @ctxt: the parser context
*
* [69] PEReference ::= '%' Name ';'
*
* [ WFC: No Recursion ]
* 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 Parameter Entity reference within DTDs
*/
void
xmlParserHandlePEReference(xmlParserCtxtPtr ctxt) {
xmlChar *name;
xmlEntityPtr entity = NULL;
xmlParserInputPtr input;
if (RAW != '%') return;
switch(ctxt->instate) {
case XML_PARSER_CDATA_SECTION:
return;
case XML_PARSER_COMMENT:
return;
case XML_PARSER_START_TAG:
return;
case XML_PARSER_END_TAG:
return;
case XML_PARSER_EOF:
ctxt->errNo = XML_ERR_PEREF_AT_EOF;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference at EOF\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
case XML_PARSER_PROLOG:
case XML_PARSER_START:
case XML_PARSER_MISC:
ctxt->errNo = XML_ERR_PEREF_IN_PROLOG;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference in prolog!\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
case XML_PARSER_ENTITY_DECL:
case XML_PARSER_CONTENT:
case XML_PARSER_ATTRIBUTE_VALUE:
case XML_PARSER_PI:
case XML_PARSER_SYSTEM_LITERAL:
case XML_PARSER_PUBLIC_LITERAL:
/* we just ignore it there */
return;
case XML_PARSER_EPILOG:
ctxt->errNo = XML_ERR_PEREF_IN_EPILOG;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "PEReference in epilog!\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
case XML_PARSER_ENTITY_VALUE:
/*
* NOTE: in the case of entity values, we don't do the
* substitution here since we need the literal
* entity value to be able to save the internal
* subset of the document.
* This will be handled by xmlStringDecodeEntities
*/
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;
if (IS_BLANK(NXT(1)) || NXT(1) == 0)
return;
break;
case XML_PARSER_IGNORE:
return;
}
NEXT;
name = xmlParseName(ctxt);
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"PEReference: %s\n", name);
if (name == NULL) {
ctxt->errNo = XML_ERR_PEREF_NO_NAME;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParserHandlePEReference: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (RAW == ';') {
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} 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->disableSAX) &&
(ctxt->validate) && (ctxt->vctxt.error != NULL)) {
ctxt->vctxt.error(ctxt->vctxt.userData,
"PEReference: %%%s; not found\n", name);
} else if ((!ctxt->disableSAX) &&
(ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->valid = 0;
}
} else if (ctxt->input->free != deallocblankswrapper) {
input = xmlNewBlanksWrapperInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
} else {
if ((entity->etype == XML_INTERNAL_PARAMETER_ENTITY) ||
(entity->etype == XML_EXTERNAL_PARAMETER_ENTITY)) {
xmlChar start[4];
xmlCharEncoding enc;
/*
* handle the extra spaces added before and after
* c.f. http://www.w3.org/TR/REC-xml#as-PE
* this is done independently.
*/
input = xmlNewEntityInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
GROW
if (entity->length >= 4) {
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
}
if ((entity->etype == XML_EXTERNAL_PARAMETER_ENTITY) &&
(RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
xmlParseTextDecl(ctxt);
}
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParserHandlePEReference: %s is not a parameter entity\n",
name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
} else {
ctxt->errNo = XML_ERR_PEREF_SEMICOL_MISSING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParserHandlePEReference: expecting ';'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
}
}
/*
* Macro used to grow the current buffer.
*/
#define growBuffer(buffer) { \
buffer##_size *= 2; \
buffer = (xmlChar *) \
xmlRealloc(buffer, buffer##_size * sizeof(xmlChar)); \
if (buffer == NULL) { \
xmlGenericError(xmlGenericErrorContext, "realloc failed"); \
return(NULL); \
} \
}
/**
* xmlStringDecodeEntities:
* @ctxt: the parser context
* @str: the input string
* @what: combination of XML_SUBSTITUTE_REF and XML_SUBSTITUTE_PEREF
* @end: an end marker xmlChar, 0 if none
* @end2: an end marker xmlChar, 0 if none
* @end3: an end marker xmlChar, 0 if none
*
* Takes a entity string content and process to do the adequate substitutions.
*
* [67] Reference ::= EntityRef | CharRef
*
* [69] PEReference ::= '%' Name ';'
*
* Returns A newly allocated string with the substitution done. The caller
* must deallocate it !
*/
xmlChar *
xmlStringDecodeEntities(xmlParserCtxtPtr ctxt, const xmlChar *str, int what,
xmlChar end, xmlChar end2, xmlChar end3) {
xmlChar *buffer = NULL;
int buffer_size = 0;
xmlChar *current = NULL;
xmlEntityPtr ent;
int c,l;
int nbchars = 0;
if (str == NULL)
return(NULL);
if (ctxt->depth > 40) {
ctxt->errNo = XML_ERR_ENTITY_LOOP;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Detected entity reference loop\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
/*
* allocate a translation buffer.
*/
buffer_size = XML_PARSER_BIG_BUFFER_SIZE;
buffer = (xmlChar *) xmlMallocAtomic(buffer_size * sizeof(xmlChar));
if (buffer == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlStringDecodeEntities: malloc failed");
return(NULL);
}
/*
* OK loop until we reach one of the ending char or a size limit.
* we are operating on already parsed values.
*/
c = CUR_SCHAR(str, l);
while ((c != 0) && (c != end) && /* non input consuming loop */
(c != end2) && (c != end3)) {
if (c == 0) break;
if ((c == '&') && (str[1] == '#')) {
int val = xmlParseStringCharRef(ctxt, &str);
if (val != 0) {
COPY_BUF(0,buffer,nbchars,val);
}
} else if ((c == '&') && (what & XML_SUBSTITUTE_REF)) {
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"String decoding Entity Reference: %.30s\n",
str);
ent = xmlParseStringEntityRef(ctxt, &str);
if ((ent != NULL) &&
(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {
if (ent->content != NULL) {
COPY_BUF(0,buffer,nbchars,ent->content[0]);
} else {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"internal error entity has no content\n");
}
} else if ((ent != NULL) && (ent->content != NULL)) {
xmlChar *rep;
ctxt->depth++;
rep = xmlStringDecodeEntities(ctxt, ent->content, what,
0, 0, 0);
ctxt->depth--;
if (rep != NULL) {
current = rep;
while (*current != 0) { /* non input consuming loop */
buffer[nbchars++] = *current++;
if (nbchars >
buffer_size - XML_PARSER_BUFFER_SIZE) {
growBuffer(buffer);
}
}
xmlFree(rep);
}
} else if (ent != NULL) {
int i = xmlStrlen(ent->name);
const xmlChar *cur = ent->name;
buffer[nbchars++] = '&';
if (nbchars > buffer_size - i - XML_PARSER_BUFFER_SIZE) {
growBuffer(buffer);
}
for (;i > 0;i--)
buffer[nbchars++] = *cur++;
buffer[nbchars++] = ';';
}
} else if (c == '%' && (what & XML_SUBSTITUTE_PEREF)) {
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"String decoding PE Reference: %.30s\n", str);
ent = xmlParseStringPEReference(ctxt, &str);
if (ent != NULL) {
xmlChar *rep;
ctxt->depth++;
rep = xmlStringDecodeEntities(ctxt, ent->content, what,
0, 0, 0);
ctxt->depth--;
if (rep != NULL) {
current = rep;
while (*current != 0) { /* non input consuming loop */
buffer[nbchars++] = *current++;
if (nbchars >
buffer_size - XML_PARSER_BUFFER_SIZE) {
growBuffer(buffer);
}
}
xmlFree(rep);
}
}
} else {
COPY_BUF(l,buffer,nbchars,c);
str += l;
if (nbchars > buffer_size - XML_PARSER_BUFFER_SIZE) {
growBuffer(buffer);
}
}
c = CUR_SCHAR(str, l);
}
buffer[nbchars++] = 0;
return(buffer);
}
/************************************************************************
* *
* Commodity functions to handle xmlChars *
* *
************************************************************************/
/**
* xmlStrndup:
* @cur: the input xmlChar *
* @len: the len of @cur
*
* a strndup for array of xmlChar's
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlStrndup(const xmlChar *cur, int len) {
xmlChar *ret;
if ((cur == NULL) || (len < 0)) return(NULL);
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %ld byte failed\n",
(len + 1) * (long)sizeof(xmlChar));
return(NULL);
}
memcpy(ret, cur, len * sizeof(xmlChar));
ret[len] = 0;
return(ret);
}
/**
* xmlStrdup:
* @cur: the input xmlChar *
*
* a strdup for array of xmlChar's. Since they are supposed to be
* encoded in UTF-8 or an encoding with 8bit based chars, we assume
* a termination mark of '0'.
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlStrdup(const xmlChar *cur) {
const xmlChar *p = cur;
if (cur == NULL) return(NULL);
while (*p != 0) p++; /* non input consuming */
return(xmlStrndup(cur, p - cur));
}
/**
* xmlCharStrndup:
* @cur: the input char *
* @len: the len of @cur
*
* a strndup for char's to xmlChar's
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlCharStrndup(const char *cur, int len) {
int i;
xmlChar *ret;
if ((cur == NULL) || (len < 0)) return(NULL);
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext, "malloc of %ld byte failed\n",
(len + 1) * (long)sizeof(xmlChar));
return(NULL);
}
for (i = 0;i < len;i++)
ret[i] = (xmlChar) cur[i];
ret[len] = 0;
return(ret);
}
/**
* xmlCharStrdup:
* @cur: the input char *
*
* a strdup for char's to xmlChar's
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlCharStrdup(const char *cur) {
const char *p = cur;
if (cur == NULL) return(NULL);
while (*p != '\0') p++; /* non input consuming */
return(xmlCharStrndup(cur, p - cur));
}
/**
* xmlStrcmp:
* @str1: the first xmlChar *
* @str2: the second xmlChar *
*
* a strcmp for xmlChar's
*
* Returns the integer result of the comparison
*/
int
xmlStrcmp(const xmlChar *str1, const xmlChar *str2) {
register int tmp;
if (str1 == str2) return(0);
if (str1 == NULL) return(-1);
if (str2 == NULL) return(1);
do {
tmp = *str1++ - *str2;
if (tmp != 0) return(tmp);
} while (*str2++ != 0);
return 0;
}
/**
* xmlStrEqual:
* @str1: the first xmlChar *
* @str2: the second xmlChar *
*
* Check if both string are equal of have same content
* Should be a bit more readable and faster than xmlStrEqual()
*
* Returns 1 if they are equal, 0 if they are different
*/
int
xmlStrEqual(const xmlChar *str1, const xmlChar *str2) {
if (str1 == str2) return(1);
if (str1 == NULL) return(0);
if (str2 == NULL) return(0);
do {
if (*str1++ != *str2) return(0);
} while (*str2++);
return(1);
}
/**
* xmlStrncmp:
* @str1: the first xmlChar *
* @str2: the second xmlChar *
* @len: the max comparison length
*
* a strncmp for xmlChar's
*
* Returns the integer result of the comparison
*/
int
xmlStrncmp(const xmlChar *str1, const xmlChar *str2, int len) {
register int tmp;
if (len <= 0) return(0);
if (str1 == str2) return(0);
if (str1 == NULL) return(-1);
if (str2 == NULL) return(1);
do {
tmp = *str1++ - *str2;
if (tmp != 0 || --len == 0) return(tmp);
} while (*str2++ != 0);
return 0;
}
static const xmlChar casemap[256] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,
0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,
0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
0x78,0x79,0x7A,0x7B,0x5C,0x5D,0x5E,0x5F,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,
0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,
0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,
0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,
0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,
0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,
0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
};
/**
* xmlStrcasecmp:
* @str1: the first xmlChar *
* @str2: the second xmlChar *
*
* a strcasecmp for xmlChar's
*
* Returns the integer result of the comparison
*/
int
xmlStrcasecmp(const xmlChar *str1, const xmlChar *str2) {
register int tmp;
if (str1 == str2) return(0);
if (str1 == NULL) return(-1);
if (str2 == NULL) return(1);
do {
tmp = casemap[*str1++] - casemap[*str2];
if (tmp != 0) return(tmp);
} while (*str2++ != 0);
return 0;
}
/**
* xmlStrncasecmp:
* @str1: the first xmlChar *
* @str2: the second xmlChar *
* @len: the max comparison length
*
* a strncasecmp for xmlChar's
*
* Returns the integer result of the comparison
*/
int
xmlStrncasecmp(const xmlChar *str1, const xmlChar *str2, int len) {
register int tmp;
if (len <= 0) return(0);
if (str1 == str2) return(0);
if (str1 == NULL) return(-1);
if (str2 == NULL) return(1);
do {
tmp = casemap[*str1++] - casemap[*str2];
if (tmp != 0 || --len == 0) return(tmp);
} while (*str2++ != 0);
return 0;
}
/**
* xmlStrchr:
* @str: the xmlChar * array
* @val: the xmlChar to search
*
* a strchr for xmlChar's
*
* Returns the xmlChar * for the first occurrence or NULL.
*/
const xmlChar *
xmlStrchr(const xmlChar *str, xmlChar val) {
if (str == NULL) return(NULL);
while (*str != 0) { /* non input consuming */
if (*str == val) return((xmlChar *) str);
str++;
}
return(NULL);
}
/**
* xmlStrstr:
* @str: the xmlChar * array (haystack)
* @val: the xmlChar to search (needle)
*
* a strstr for xmlChar's
*
* Returns the xmlChar * for the first occurrence or NULL.
*/
const xmlChar *
xmlStrstr(const xmlChar *str, const xmlChar *val) {
int n;
if (str == NULL) return(NULL);
if (val == NULL) return(NULL);
n = xmlStrlen(val);
if (n == 0) return(str);
while (*str != 0) { /* non input consuming */
if (*str == *val) {
if (!xmlStrncmp(str, val, n)) return((const xmlChar *) str);
}
str++;
}
return(NULL);
}
/**
* xmlStrcasestr:
* @str: the xmlChar * array (haystack)
* @val: the xmlChar to search (needle)
*
* a case-ignoring strstr for xmlChar's
*
* Returns the xmlChar * for the first occurrence or NULL.
*/
const xmlChar *
xmlStrcasestr(const xmlChar *str, xmlChar *val) {
int n;
if (str == NULL) return(NULL);
if (val == NULL) return(NULL);
n = xmlStrlen(val);
if (n == 0) return(str);
while (*str != 0) { /* non input consuming */
if (casemap[*str] == casemap[*val])
if (!xmlStrncasecmp(str, val, n)) return(str);
str++;
}
return(NULL);
}
/**
* xmlStrsub:
* @str: the xmlChar * 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 xmlChar * for the first occurrence or NULL.
*/
xmlChar *
xmlStrsub(const xmlChar *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 xmlChar * array
*
* length of a xmlChar's string
*
* Returns the number of xmlChar contained in the ARRAY.
*/
int
xmlStrlen(const xmlChar *str) {
int len = 0;
if (str == NULL) return(0);
while (*str != 0) { /* non input consuming */
str++;
len++;
}
return(len);
}
/**
* xmlStrncat:
* @cur: the original xmlChar * array
* @add: the xmlChar * array added
* @len: the length of @add
*
* a strncat for array of xmlChar's, it will extend @cur with the len
* first bytes of @add.
*
* Returns a new xmlChar *, the original @cur is reallocated if needed
* and should not be freed
*/
xmlChar *
xmlStrncat(xmlChar *cur, const xmlChar *add, int len) {
int size;
xmlChar *ret;
if ((add == NULL) || (len == 0))
return(cur);
if (cur == NULL)
return(xmlStrndup(add, len));
size = xmlStrlen(cur);
ret = (xmlChar *) xmlRealloc(cur, (size + len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlStrncat: realloc of %ld byte failed\n",
(size + len + 1) * (long)sizeof(xmlChar));
return(cur);
}
memcpy(&ret[size], add, len * sizeof(xmlChar));
ret[size + len] = 0;
return(ret);
}
/**
* xmlStrcat:
* @cur: the original xmlChar * array
* @add: the xmlChar * array added
*
* a strcat for array of xmlChar's. Since they are supposed to be
* encoded in UTF-8 or an encoding with 8bit based chars, we assume
* a termination mark of '0'.
*
* Returns a new xmlChar * containing the concatenated string.
*/
xmlChar *
xmlStrcat(xmlChar *cur, const xmlChar *add) {
const xmlChar *p = add;
if (add == NULL) return(cur);
if (cur == NULL)
return(xmlStrdup(add));
while (*p != 0) p++; /* non input consuming */
return(xmlStrncat(cur, add, p - add));
}
/************************************************************************
* *
* Commodity functions, cleanup needed ? *
* *
************************************************************************/
/**
* areBlanks:
* @ctxt: an XML parser context
* @str: a xmlChar *
* @len: the size of @str
*
* Is this a sequence of blank chars that one can ignore ?
*
* Returns 1 if ignorable 0 otherwise.
*/
static int areBlanks(xmlParserCtxtPtr ctxt, const xmlChar *str, int len) {
int i, ret;
xmlNodePtr lastChild;
/*
* Don't spend time trying to differentiate them, the same callback is
* used !
*/
if (ctxt->sax->ignorableWhitespace == ctxt->sax->characters)
return(0);
/*
* Check for xml:space value.
*/
if (*(ctxt->space) == 1)
return(0);
/*
* Check that the string is made of blanks
*/
for (i = 0;i < len;i++)
if (!(IS_BLANK(str[i]))) return(0);
/*
* Look if the element is mixed content in the DTD if available
*/
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);
}
/*
* Otherwise, heuristic :-\
*/
if (RAW != '<') return(0);
if ((ctxt->node->children == NULL) &&
(RAW == '<') && (NXT(1) == '/')) return(0);
lastChild = xmlGetLastChild(ctxt->node);
if (lastChild == NULL) {
if ((ctxt->node->type != XML_ELEMENT_NODE) &&
(ctxt->node->content != NULL)) return(0);
} else if (xmlNodeIsText(lastChild))
return(0);
else if ((ctxt->node->children != NULL) &&
(xmlNodeIsText(ctxt->node->children)))
return(0);
return(1);
}
/************************************************************************
* *
* Extra stuff for namespace support *
* Relates to http://www.w3.org/TR/WD-xml-names *
* *
************************************************************************/
/**
* xmlSplitQName:
* @ctxt: an XML parser context
* @name: an XML parser context
* @prefix: a xmlChar **
*
* parse an UTF8 encoded XML qualified name string
*
* [NS 5] QName ::= (Prefix ':')? LocalPart
*
* [NS 6] Prefix ::= NCName
*
* [NS 7] LocalPart ::= NCName
*
* Returns the local part, and prefix is updated
* to get the Prefix if any.
*/
xmlChar *
xmlSplitQName(xmlParserCtxtPtr ctxt, const xmlChar *name, xmlChar **prefix) {
xmlChar buf[XML_MAX_NAMELEN + 5];
xmlChar *buffer = NULL;
int len = 0;
int max = XML_MAX_NAMELEN;
xmlChar *ret = NULL;
const xmlChar *cur = name;
int c;
*prefix = NULL;
if (cur == NULL) return(NULL);
#ifndef XML_XML_NAMESPACE
/* xml: prefix is not really a namespace */
if ((cur[0] == 'x') && (cur[1] == 'm') &&
(cur[2] == 'l') && (cur[3] == ':'))
return(xmlStrdup(name));
#endif
/* nasty but well=formed */
if (cur[0] == ':')
return(xmlStrdup(name));
c = *cur++;
while ((c != 0) && (c != ':') && (len < max)) { /* tested bigname.xml */
buf[len++] = c;
c = *cur++;
}
if (len >= max) {
/*
* Okay someone managed to make a huge name, so he's ready to pay
* for the processing speed.
*/
max = len * 2;
buffer = (xmlChar *) xmlMallocAtomic(max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlSplitQName: out of memory\n");
return(NULL);
}
memcpy(buffer, buf, len);
while ((c != 0) && (c != ':')) { /* tested bigname.xml */
if (len + 10 > max) {
max *= 2;
buffer = (xmlChar *) xmlRealloc(buffer,
max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlSplitQName: out of memory\n");
return(NULL);
}
}
buffer[len++] = c;
c = *cur++;
}
buffer[len] = 0;
}
/* nasty but well=formed
if ((c == ':') && (*cur == 0)) {
return(xmlStrdup(name));
} */
if (buffer == NULL)
ret = xmlStrndup(buf, len);
else {
ret = buffer;
buffer = NULL;
max = XML_MAX_NAMELEN;
}
if (c == ':') {
c = *cur;
*prefix = ret;
if (c == 0) {
return(xmlStrndup(BAD_CAST "", 0));
}
len = 0;
/*
* Check that the first character is proper to start
* a new name
*/
if (!(((c >= 0x61) && (c <= 0x7A)) ||
((c >= 0x41) && (c <= 0x5A)) ||
(c == '_') || (c == ':'))) {
int l;
int first = CUR_SCHAR(cur, l);
if (!IS_LETTER(first) && (first != '_')) {
if ((ctxt != NULL) && (ctxt->sax != NULL) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Name %s is not XML Namespace compliant\n",
name);
}
}
cur++;
while ((c != 0) && (len < max)) { /* tested bigname2.xml */
buf[len++] = c;
c = *cur++;
}
if (len >= max) {
/*
* Okay someone managed to make a huge name, so he's ready to pay
* for the processing speed.
*/
max = len * 2;
buffer = (xmlChar *) xmlMallocAtomic(max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt != NULL) && (ctxt->sax != NULL) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlSplitQName: out of memory\n");
return(NULL);
}
memcpy(buffer, buf, len);
while (c != 0) { /* tested bigname2.xml */
if (len + 10 > max) {
max *= 2;
buffer = (xmlChar *) xmlRealloc(buffer,
max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt != NULL) && (ctxt->sax != NULL) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlSplitQName: out of memory\n");
return(NULL);
}
}
buffer[len++] = c;
c = *cur++;
}
buffer[len] = 0;
}
if (buffer == NULL)
ret = xmlStrndup(buf, len);
else {
ret = buffer;
}
}
return(ret);
}
/************************************************************************
* *
* The parser itself *
* Relates to http://www.w3.org/TR/REC-xml *
* *
************************************************************************/
static xmlChar * xmlParseNameComplex(xmlParserCtxtPtr ctxt);
/**
* 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
*/
xmlChar *
xmlParseName(xmlParserCtxtPtr ctxt) {
const xmlChar *in;
xmlChar *ret;
int count = 0;
GROW;
/*
* Accelerator for simple ASCII names
*/
in = ctxt->input->cur;
if (((*in >= 0x61) && (*in <= 0x7A)) ||
((*in >= 0x41) && (*in <= 0x5A)) ||
(*in == '_') || (*in == ':')) {
in++;
while (((*in >= 0x61) && (*in <= 0x7A)) ||
((*in >= 0x41) && (*in <= 0x5A)) ||
((*in >= 0x30) && (*in <= 0x39)) ||
(*in == '_') || (*in == '-') ||
(*in == ':') || (*in == '.'))
in++;
if ((*in > 0) && (*in < 0x80)) {
count = in - ctxt->input->cur;
ret = xmlStrndup(ctxt->input->cur, count);
ctxt->input->cur = in;
ctxt->nbChars += count;
ctxt->input->col += count;
if (ret == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML parser: out of memory\n");
ctxt->errNo = XML_ERR_NO_MEMORY;
ctxt->instate = XML_PARSER_EOF;
ctxt->disableSAX = 1;
}
return(ret);
}
}
return(xmlParseNameComplex(ctxt));
}
/**
* xmlParseNameAndCompare:
* @ctxt: an XML parser context
*
* parse an XML name and compares for match
* (specialized for endtag parsing)
*
*
* Returns NULL for an illegal name, (xmlChar*) 1 for success
* and the name for mismatch
*/
static xmlChar *
xmlParseNameAndCompare(xmlParserCtxtPtr ctxt, xmlChar const *other) {
const xmlChar *cmp = other;
const xmlChar *in;
xmlChar *ret;
GROW;
in = ctxt->input->cur;
while (*in != 0 && *in == *cmp) {
++in;
++cmp;
}
if (*cmp == 0 && (*in == '>' || IS_BLANK (*in))) {
/* success */
ctxt->input->cur = in;
return (xmlChar*) 1;
}
/* failure (or end of input buffer), check with full function */
ret = xmlParseName (ctxt);
if (ret != 0 && xmlStrEqual (ret, other)) {
xmlFree (ret);
return (xmlChar*) 1;
}
return ret;
}
static xmlChar *
xmlParseNameComplex(xmlParserCtxtPtr ctxt) {
xmlChar buf[XML_MAX_NAMELEN + 5];
int len = 0, l;
int c;
int count = 0;
/*
* Handler for more complex cases
*/
GROW;
c = CUR_CHAR(l);
if ((c == ' ') || (c == '>') || (c == '/') || /* accelerators */
(!IS_LETTER(c) && (c != '_') &&
(c != ':'))) {
return(NULL);
}
while ((c != ' ') && (c != '>') && (c != '/') && /* test bigname.xml */
((IS_LETTER(c)) || (IS_DIGIT(c)) ||
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c)))) {
if (count++ > 100) {
count = 0;
GROW;
}
COPY_BUF(l,buf,len,c);
NEXTL(l);
c = CUR_CHAR(l);
if (len >= XML_MAX_NAMELEN) {
/*
* Okay someone managed to make a huge name, so he's ready to pay
* for the processing speed.
*/
xmlChar *buffer;
int max = len * 2;
buffer = (xmlChar *) xmlMallocAtomic(max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseNameComplex: out of memory\n");
return(NULL);
}
memcpy(buffer, buf, len);
while ((IS_LETTER(c)) || (IS_DIGIT(c)) || /* test bigname.xml */
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c))) {
if (count++ > 100) {
count = 0;
GROW;
}
if (len + 10 > max) {
max *= 2;
buffer = (xmlChar *) xmlRealloc(buffer,
max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseNameComplex: out of memory\n");
return(NULL);
}
}
COPY_BUF(l,buffer,len,c);
NEXTL(l);
c = CUR_CHAR(l);
}
buffer[len] = 0;
return(buffer);
}
}
return(xmlStrndup(buf, len));
}
/**
* xmlParseStringName:
* @ctxt: an XML parser context
* @str: a pointer to the string pointer (IN/OUT)
*
* 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. The @str pointer
* is updated to the current location in the string.
*/
static xmlChar *
xmlParseStringName(xmlParserCtxtPtr ctxt, const xmlChar** str) {
xmlChar buf[XML_MAX_NAMELEN + 5];
const xmlChar *cur = *str;
int len = 0, l;
int c;
c = CUR_SCHAR(cur, l);
if (!IS_LETTER(c) && (c != '_') &&
(c != ':')) {
return(NULL);
}
while ((IS_LETTER(c)) || (IS_DIGIT(c)) || /* test bigentname.xml */
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c))) {
COPY_BUF(l,buf,len,c);
cur += l;
c = CUR_SCHAR(cur, l);
if (len >= XML_MAX_NAMELEN) { /* test bigentname.xml */
/*
* Okay someone managed to make a huge name, so he's ready to pay
* for the processing speed.
*/
xmlChar *buffer;
int max = len * 2;
buffer = (xmlChar *) xmlMallocAtomic(max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringName: out of memory\n");
return(NULL);
}
memcpy(buffer, buf, len);
while ((IS_LETTER(c)) || (IS_DIGIT(c)) || /* test bigentname.xml */
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c))) {
if (len + 10 > max) {
max *= 2;
buffer = (xmlChar *) xmlRealloc(buffer,
max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringName: out of memory\n");
return(NULL);
}
}
COPY_BUF(l,buffer,len,c);
cur += l;
c = CUR_SCHAR(cur, l);
}
buffer[len] = 0;
*str = cur;
return(buffer);
}
}
*str = cur;
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
*/
xmlChar *
xmlParseNmtoken(xmlParserCtxtPtr ctxt) {
xmlChar buf[XML_MAX_NAMELEN + 5];
int len = 0, l;
int c;
int count = 0;
GROW;
c = CUR_CHAR(l);
while ((IS_LETTER(c)) || (IS_DIGIT(c)) || /* test bigtoken.xml */
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c))) {
if (count++ > 100) {
count = 0;
GROW;
}
COPY_BUF(l,buf,len,c);
NEXTL(l);
c = CUR_CHAR(l);
if (len >= XML_MAX_NAMELEN) {
/*
* Okay someone managed to make a huge token, so he's ready to pay
* for the processing speed.
*/
xmlChar *buffer;
int max = len * 2;
buffer = (xmlChar *) xmlMallocAtomic(max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseNmtoken: out of memory\n");
return(NULL);
}
memcpy(buffer, buf, len);
while ((IS_LETTER(c)) || (IS_DIGIT(c)) || /* test bigtoken.xml */
(c == '.') || (c == '-') ||
(c == '_') || (c == ':') ||
(IS_COMBINING(c)) ||
(IS_EXTENDER(c))) {
if (count++ > 100) {
count = 0;
GROW;
}
if (len + 10 > max) {
max *= 2;
buffer = (xmlChar *) xmlRealloc(buffer,
max * sizeof(xmlChar));
if (buffer == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseNmtoken: out of memory\n");
return(NULL);
}
}
COPY_BUF(l,buffer,len,c);
NEXTL(l);
c = CUR_CHAR(l);
}
buffer[len] = 0;
return(buffer);
}
}
if (len == 0)
return(NULL);
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 declarations
*
* [9] EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"' |
* "'" ([^%&'] | PEReference | Reference)* "'"
*
* Returns the EntityValue parsed with reference substituted or NULL
*/
xmlChar *
xmlParseEntityValue(xmlParserCtxtPtr ctxt, xmlChar **orig) {
xmlChar *buf = NULL;
int len = 0;
int size = XML_PARSER_BUFFER_SIZE;
int c, l;
xmlChar stop;
xmlChar *ret = NULL;
const xmlChar *cur = NULL;
xmlParserInputPtr input;
if (RAW == '"') stop = '"';
else if (RAW == '\'') stop = '\'';
else {
ctxt->errNo = XML_ERR_ENTITY_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "EntityValue: \" or ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return(NULL);
}
/*
* The content of the entity definition is copied in a buffer.
*/
ctxt->instate = XML_PARSER_ENTITY_VALUE;
input = ctxt->input;
GROW;
NEXT;
c = CUR_CHAR(l);
/*
* 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 ((IS_CHAR(c)) && ((c != stop) || /* checked */
(ctxt->input != input))) {
if (len + 5 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
return(NULL);
}
}
COPY_BUF(l,buf,len,c);
NEXTL(l);
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1)) /* non input consuming */
xmlPopInput(ctxt);
GROW;
c = CUR_CHAR(l);
if (c == 0) {
GROW;
c = CUR_CHAR(l);
}
}
buf[len] = 0;
/*
* Raise problem w.r.t. '&' and '%' being used in non-entities
* reference constructs. Note Charref will be handled in
* xmlStringDecodeEntities()
*/
cur = buf;
while (*cur != 0) { /* non input consuming */
if ((*cur == '%') || ((*cur == '&') && (cur[1] != '#'))) {
xmlChar *name;
xmlChar tmp = *cur;
cur++;
name = xmlParseStringName(ctxt, &cur);
if ((name == NULL) || (*cur != ';')) {
ctxt->errNo = XML_ERR_ENTITY_CHAR_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"EntityValue: '%c' forbidden except for entities references\n",
tmp);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if ((tmp == '%') && (ctxt->inSubset == 1) &&
(ctxt->inputNr == 1)) {
ctxt->errNo = XML_ERR_ENTITY_PE_INTERNAL;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"EntityValue: PEReferences forbidden in internal subset\n",
tmp);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (name != NULL)
xmlFree(name);
}
cur++;
}
/*
* Then PEReference entities are substituted.
*/
if (c != stop) {
ctxt->errNo = XML_ERR_ENTITY_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "EntityValue: \" expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(buf);
} else {
NEXT;
/*
* 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 here.
*/
ret = xmlStringDecodeEntities(ctxt, buf, XML_SUBSTITUTE_PEREF,
0, 0, 0);
if (orig != NULL)
*orig = buf;
else
xmlFree(buf);
}
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)* "'"
*
* 3.3.3 Attribute-Value Normalization:
* Before the value of an attribute is passed to the application or
* checked for validity, the XML processor must normalize it as follows:
* - a character reference is processed by appending the referenced
* character to the attribute value
* - an entity reference is processed by recursively processing the
* replacement text of the entity
* - a whitespace character (#x20, #xD, #xA, #x9) is processed by
* appending #x20 to the normalized value, except that only a single
* #x20 is appended for a "#xD#xA" sequence that is part of an external
* parsed entity or the literal entity value of an internal parsed entity
* - other characters are processed by appending them to the normalized value
* If the declared value is not CDATA, then the XML processor must further
* process the normalized attribute value by discarding any leading and
* trailing space (#x20) characters, and by replacing sequences of space
* (#x20) characters by a single space (#x20) character.
* All attributes for which no declaration has been read should be treated
* by a non-validating parser as if declared CDATA.
*
* Returns the AttValue parsed or NULL. The value has to be freed by the caller.
*/
xmlChar *
xmlParseAttValueComplex(xmlParserCtxtPtr ctxt);
xmlChar *
xmlParseAttValue(xmlParserCtxtPtr ctxt) {
xmlChar limit = 0;
const xmlChar *in = NULL;
xmlChar *ret = NULL;
SHRINK;
GROW;
in = (xmlChar *) CUR_PTR;
if (*in != '"' && *in != '\'') {
ctxt->errNo = XML_ERR_ATTRIBUTE_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: \" or ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
ctxt->instate = XML_PARSER_ATTRIBUTE_VALUE;
limit = *in;
++in;
while (*in != limit && *in >= 0x20 && *in <= 0x7f &&
*in != '&' && *in != '<'
) {
++in;
}
if (*in != limit) {
return xmlParseAttValueComplex(ctxt);
}
++in;
ret = xmlStrndup (CUR_PTR + 1, in - CUR_PTR - 2);
CUR_PTR = in;
return ret;
}
/**
* xmlParseAttValueComplex:
* @ctxt: an XML parser context
*
* parse a value for an attribute, this is the fallback function
* of xmlParseAttValue() when the attribute parsing requires handling
* of non-ASCII characters.
*
* Returns the AttValue parsed or NULL. The value has to be freed by the caller.
*/
xmlChar *
xmlParseAttValueComplex(xmlParserCtxtPtr ctxt) {
xmlChar limit = 0;
xmlChar *buf = NULL;
int len = 0;
int buf_size = 0;
int c, l;
xmlChar *current = NULL;
xmlEntityPtr ent;
SHRINK;
if (NXT(0) == '"') {
ctxt->instate = XML_PARSER_ATTRIBUTE_VALUE;
limit = '"';
NEXT;
} else if (NXT(0) == '\'') {
limit = '\'';
ctxt->instate = XML_PARSER_ATTRIBUTE_VALUE;
NEXT;
} else {
ctxt->errNo = XML_ERR_ATTRIBUTE_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: \" or ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
/*
* allocate a translation buffer.
*/
buf_size = XML_PARSER_BUFFER_SIZE;
buf = (xmlChar *) xmlMallocAtomic(buf_size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlParseAttValue: malloc failed");
return(NULL);
}
/*
* OK loop until we reach one of the ending char or a size limit.
*/
c = CUR_CHAR(l);
while ((NXT(0) != limit) && /* checked */
(c != '<')) {
if (c == 0) break;
if (c == '&') {
if (NXT(1) == '#') {
int val = xmlParseCharRef(ctxt);
if (val == '&') {
if (ctxt->replaceEntities) {
if (len > buf_size - 10) {
growBuffer(buf);
}
buf[len++] = '&';
} else {
/*
* The reparsing will be done in xmlStringGetNodeList()
* called by the attribute() function in SAX.c
*/
static xmlChar buffer[6] = "&#38;";
if (len > buf_size - 10) {
growBuffer(buf);
}
current = &buffer[0];
while (*current != 0) { /* non input consuming */
buf[len++] = *current++;
}
}
} else {
if (len > buf_size - 10) {
growBuffer(buf);
}
len += xmlCopyChar(0, &buf[len], val);
}
} else {
ent = xmlParseEntityRef(ctxt);
if ((ent != NULL) &&
(ctxt->replaceEntities != 0)) {
xmlChar *rep;
if (ent->etype != XML_INTERNAL_PREDEFINED_ENTITY) {
rep = xmlStringDecodeEntities(ctxt, ent->content,
XML_SUBSTITUTE_REF, 0, 0, 0);
if (rep != NULL) {
current = rep;
while (*current != 0) { /* non input consuming */
buf[len++] = *current++;
if (len > buf_size - 10) {
growBuffer(buf);
}
}
xmlFree(rep);
}
} else {
if (len > buf_size - 10) {
growBuffer(buf);
}
if (ent->content != NULL)
buf[len++] = ent->content[0];
}
} else if (ent != NULL) {
int i = xmlStrlen(ent->name);
const xmlChar *cur = ent->name;
/*
* This may look absurd but is needed to detect
* entities problems
*/
if ((ent->etype != XML_INTERNAL_PREDEFINED_ENTITY) &&
(ent->content != NULL)) {
xmlChar *rep;
rep = xmlStringDecodeEntities(ctxt, ent->content,
XML_SUBSTITUTE_REF, 0, 0, 0);
if (rep != NULL)
xmlFree(rep);
}
/*
* Just output the reference
*/
buf[len++] = '&';
if (len > buf_size - i - 10) {
growBuffer(buf);
}
for (;i > 0;i--)
buf[len++] = *cur++;
buf[len++] = ';';
}
}
} else {
if ((c == 0x20) || (c == 0xD) || (c == 0xA) || (c == 0x9)) {
COPY_BUF(l,buf,len,0x20);
if (len > buf_size - 10) {
growBuffer(buf);
}
} else {
COPY_BUF(l,buf,len,c);
if (len > buf_size - 10) {
growBuffer(buf);
}
}
NEXTL(l);
}
GROW;
c = CUR_CHAR(l);
}
buf[len++] = 0;
if (RAW == '<') {
ctxt->errNo = XML_ERR_LT_IN_ATTRIBUTE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Unescaped '<' not allowed in attributes values\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != limit) {
ctxt->errNo = XML_ERR_ATTRIBUTE_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "AttValue: ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
return(buf);
}
/**
* xmlParseSystemLiteral:
* @ctxt: an XML parser context
*
* parse an XML Literal
*
* [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'")
*
* Returns the SystemLiteral parsed or NULL
*/
xmlChar *
xmlParseSystemLiteral(xmlParserCtxtPtr ctxt) {
xmlChar *buf = NULL;
int len = 0;
int size = XML_PARSER_BUFFER_SIZE;
int cur, l;
xmlChar stop;
int state = ctxt->instate;
int count = 0;
SHRINK;
if (RAW == '"') {
NEXT;
stop = '"';
} else if (RAW == '\'') {
NEXT;
stop = '\'';
} else {
ctxt->errNo = XML_ERR_LITERAL_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"SystemLiteral \" or ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return(NULL);
}
ctxt->instate = XML_PARSER_SYSTEM_LITERAL;
cur = CUR_CHAR(l);
while ((IS_CHAR(cur)) && (cur != stop)) { /* checked */
if (len + 5 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
ctxt->instate = (xmlParserInputState) state;
return(NULL);
}
}
count++;
if (count > 50) {
GROW;
count = 0;
}
COPY_BUF(l,buf,len,cur);
NEXTL(l);
cur = CUR_CHAR(l);
if (cur == 0) {
GROW;
SHRINK;
cur = CUR_CHAR(l);
}
}
buf[len] = 0;
ctxt->instate = (xmlParserInputState) state;
if (!IS_CHAR(cur)) {
ctxt->errNo = XML_ERR_LITERAL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished SystemLiteral\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
NEXT;
}
return(buf);
}
/**
* xmlParsePubidLiteral:
* @ctxt: an XML parser context
*
* parse an XML public literal
*
* [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'"
*
* Returns the PubidLiteral parsed or NULL.
*/
xmlChar *
xmlParsePubidLiteral(xmlParserCtxtPtr ctxt) {
xmlChar *buf = NULL;
int len = 0;
int size = XML_PARSER_BUFFER_SIZE;
xmlChar cur;
xmlChar stop;
int count = 0;
xmlParserInputState oldstate = ctxt->instate;
SHRINK;
if (RAW == '"') {
NEXT;
stop = '"';
} else if (RAW == '\'') {
NEXT;
stop = '\'';
} else {
ctxt->errNo = XML_ERR_LITERAL_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"SystemLiteral \" or ' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return(NULL);
}
ctxt->instate = XML_PARSER_PUBLIC_LITERAL;
cur = CUR;
while ((IS_PUBIDCHAR(cur)) && (cur != stop)) { /* checked */
if (len + 1 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
return(NULL);
}
}
buf[len++] = cur;
count++;
if (count > 50) {
GROW;
count = 0;
}
NEXT;
cur = CUR;
if (cur == 0) {
GROW;
SHRINK;
cur = CUR;
}
}
buf[len] = 0;
if (cur != stop) {
ctxt->errNo = XML_ERR_LITERAL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Unfinished PubidLiteral\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
NEXT;
}
ctxt->instate = oldstate;
return(buf);
}
void xmlParseCharDataComplex(xmlParserCtxtPtr ctxt, int cdata);
/**
* 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.
*
* The right angle bracket (>) may be represented using the string "&gt;",
* and must, for compatibility, be escaped using "&gt;" or a character
* reference when it appears in the string "]]>" in content, when that
* string is not marking the end of a CDATA section.
*
* [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*)
*/
void
xmlParseCharData(xmlParserCtxtPtr ctxt, int cdata) {
const xmlChar *in;
int nbchar = 0;
int line = ctxt->input->line;
int col = ctxt->input->col;
SHRINK;
GROW;
/*
* Accelerated common case where input don't need to be
* modified before passing it to the handler.
*/
if (!cdata) {
in = ctxt->input->cur;
do {
get_more:
while (((*in >= 0x20) && (*in != '<') && (*in != ']') &&
(*in != '&') && (*in <= 0x7F)) || (*in == 0x09))
in++;
if (*in == 0xA) {
ctxt->input->line++;
in++;
while (*in == 0xA) {
ctxt->input->line++;
in++;
}
goto get_more;
}
if (*in == ']') {
if ((in[1] == ']') && (in[2] == '>')) {
ctxt->errNo = XML_ERR_MISPLACED_CDATA_END;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Sequence ']]>' not allowed in content\n");
ctxt->input->cur = in;
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
in++;
goto get_more;
}
nbchar = in - ctxt->input->cur;
if (nbchar > 0) {
if (IS_BLANK(*ctxt->input->cur)) {
const xmlChar *tmp = ctxt->input->cur;
ctxt->input->cur = in;
if (areBlanks(ctxt, tmp, nbchar)) {
if (ctxt->sax->ignorableWhitespace != NULL)
ctxt->sax->ignorableWhitespace(ctxt->userData,
tmp, nbchar);
} else {
if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData,
tmp, nbchar);
}
line = ctxt->input->line;
col = ctxt->input->col;
} else {
if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData,
ctxt->input->cur, nbchar);
line = ctxt->input->line;
col = ctxt->input->col;
}
}
ctxt->input->cur = in;
if (*in == 0xD) {
in++;
if (*in == 0xA) {
ctxt->input->cur = in;
in++;
ctxt->input->line++;
continue; /* while */
}
in--;
}
if (*in == '<') {
return;
}
if (*in == '&') {
return;
}
SHRINK;
GROW;
in = ctxt->input->cur;
} while ((*in >= 0x20) && (*in <= 0x7F));
nbchar = 0;
}
ctxt->input->line = line;
ctxt->input->col = col;
xmlParseCharDataComplex(ctxt, cdata);
}
/**
* xmlParseCharDataComplex:
* @ctxt: an XML parser context
* @cdata: int indicating whether we are within a CDATA section
*
* parse a CharData section.this is the fallback function
* of xmlParseCharData() when the parsing requires handling
* of non-ASCII characters.
*/
void
xmlParseCharDataComplex(xmlParserCtxtPtr ctxt, int cdata) {
xmlChar buf[XML_PARSER_BIG_BUFFER_SIZE + 5];
int nbchar = 0;
int cur, l;
int count = 0;
SHRINK;
GROW;
cur = CUR_CHAR(l);
while ((cur != '<') && /* checked */
(cur != '&') &&
(IS_CHAR(cur))) /* test also done in xmlCurrentChar() */ {
if ((cur == ']') && (NXT(1) == ']') &&
(NXT(2) == '>')) {
if (cdata) break;
else {
ctxt->errNo = XML_ERR_MISPLACED_CDATA_END;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Sequence ']]>' not allowed in content\n");
/* Should this be relaxed ??? I see a "must here */
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
COPY_BUF(l,buf,nbchar,cur);
if (nbchar >= XML_PARSER_BIG_BUFFER_SIZE) {
/*
* OK the segment is to be consumed as chars.
*/
if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
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;
}
count++;
if (count > 50) {
GROW;
count = 0;
}
NEXTL(l);
cur = CUR_CHAR(l);
}
if (nbchar != 0) {
/*
* OK the segment is to be consumed as chars.
*/
if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
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 xmlChar** 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] interact 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.
*/
xmlChar *
xmlParseExternalID(xmlParserCtxtPtr ctxt, xmlChar **publicID, int strict) {
xmlChar *URI = NULL;
SHRINK;
*publicID = NULL;
if ((RAW == 'S') && (NXT(1) == 'Y') &&
(NXT(2) == 'S') && (NXT(3) == 'T') &&
(NXT(4) == 'E') && (NXT(5) == 'M')) {
SKIP(6);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'SYSTEM'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
URI = xmlParseSystemLiteral(ctxt);
if (URI == NULL) {
ctxt->errNo = XML_ERR_URI_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: SYSTEM, no URI\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
} else if ((RAW == 'P') && (NXT(1) == 'U') &&
(NXT(2) == 'B') && (NXT(3) == 'L') &&
(NXT(4) == 'I') && (NXT(5) == 'C')) {
SKIP(6);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'PUBLIC'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
*publicID = xmlParsePubidLiteral(ctxt);
if (*publicID == NULL) {
ctxt->errNo = XML_ERR_PUBID_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: PUBLIC, no Public Identifier\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (strict) {
/*
* We don't handle [83] so "S SystemLiteral" is required.
*/
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the Public Identifier\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
} 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 xmlChar *ptr;
GROW;
ptr = CUR_PTR;
if (!IS_BLANK(*ptr)) return(NULL);
while (IS_BLANK(*ptr)) ptr++; /* TODO: dangerous, fix ! */
if ((*ptr != '\'') && (*ptr != '"')) return(NULL);
}
SKIP_BLANKS;
URI = xmlParseSystemLiteral(ctxt);
if (URI == NULL) {
ctxt->errNo = XML_ERR_URI_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseExternalID: PUBLIC, no URI\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
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) {
xmlChar *buf = NULL;
int len;
int size = XML_PARSER_BUFFER_SIZE;
int q, ql;
int r, rl;
int cur, l;
xmlParserInputState state;
xmlParserInputPtr input = ctxt->input;
int count = 0;
/*
* Check that there is a comment right here.
*/
if ((RAW != '<') || (NXT(1) != '!') ||
(NXT(2) != '-') || (NXT(3) != '-')) return;
state = ctxt->instate;
ctxt->instate = XML_PARSER_COMMENT;
SHRINK;
SKIP(4);
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
ctxt->instate = state;
return;
}
q = CUR_CHAR(ql);
NEXTL(ql);
r = CUR_CHAR(rl);
NEXTL(rl);
cur = CUR_CHAR(l);
len = 0;
while (IS_CHAR(cur) && /* checked */
((cur != '>') ||
(r != '-') || (q != '-'))) {
if ((r == '-') && (q == '-')) {
ctxt->errNo = XML_ERR_HYPHEN_IN_COMMENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Comment must not contain '--' (double-hyphen)`\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (len + 5 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
ctxt->instate = state;
return;
}
}
COPY_BUF(ql,buf,len,q);
q = r;
ql = rl;
r = cur;
rl = l;
count++;
if (count > 50) {
GROW;
count = 0;
}
NEXTL(l);
cur = CUR_CHAR(l);
if (cur == 0) {
SHRINK;
GROW;
cur = CUR_CHAR(l);
}
}
buf[len] = 0;
if (!IS_CHAR(cur)) {
ctxt->errNo = XML_ERR_COMMENT_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Comment not terminated \n<!--%.50s\n", buf);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(buf);
} else {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Comment doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->comment(ctxt->userData, buf);
xmlFree(buf);
}
ctxt->instate = state;
}
/**
* 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
*/
xmlChar *
xmlParsePITarget(xmlParserCtxtPtr ctxt) {
xmlChar *name;
name = xmlParseName(ctxt);
if ((name != NULL) &&
((name[0] == 'x') || (name[0] == 'X')) &&
((name[1] == 'm') || (name[1] == 'M')) &&
((name[2] == 'l') || (name[2] == 'L'))) {
int i;
if ((name[0] == 'x') && (name[1] == 'm') &&
(name[2] == 'l') && (name[3] == 0)) {
ctxt->errNo = XML_ERR_RESERVED_XML_NAME;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML declaration allowed only at the start of the document\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(name);
} else if (name[3] == 0) {
ctxt->errNo = XML_ERR_RESERVED_XML_NAME;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Invalid PI name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(name);
}
for (i = 0;;i++) {
if (xmlW3CPIs[i] == NULL) break;
if (xmlStrEqual(name, (const xmlChar *)xmlW3CPIs[i]))
return(name);
}
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL)) {
ctxt->errNo = XML_ERR_RESERVED_XML_NAME;
ctxt->sax->warning(ctxt->userData,
"xmlParsePITarget: invalid name prefix 'xml'\n");
}
}
return(name);
}
#ifdef LIBXML_CATALOG_ENABLED
/**
* xmlParseCatalogPI:
* @ctxt: an XML parser context
* @catalog: the PI value string
*
* parse an XML Catalog Processing Instruction.
*
* <?oasis-xml-catalog catalog="http://example.com/catalog.xml"?>
*
* Occurs only if allowed by the user and if happening in the Misc
* part of the document before any doctype informations
* This will add the given catalog to the parsing context in order
* to be used if there is a resolution need further down in the document
*/
static void
xmlParseCatalogPI(xmlParserCtxtPtr ctxt, const xmlChar *catalog) {
xmlChar *URL = NULL;
const xmlChar *tmp, *base;
xmlChar marker;
tmp = catalog;
while (IS_BLANK(*tmp)) tmp++;
if (xmlStrncmp(tmp, BAD_CAST"catalog", 7))
goto error;
tmp += 7;
while (IS_BLANK(*tmp)) tmp++;
if (*tmp != '=') {
return;
}
tmp++;
while (IS_BLANK(*tmp)) tmp++;
marker = *tmp;
if ((marker != '\'') && (marker != '"'))
goto error;
tmp++;
base = tmp;
while ((*tmp != 0) && (*tmp != marker)) tmp++;
if (*tmp == 0)
goto error;
URL = xmlStrndup(base, tmp - base);
tmp++;
while (IS_BLANK(*tmp)) tmp++;
if (*tmp != 0)
goto error;
if (URL != NULL) {
ctxt->catalogs = xmlCatalogAddLocal(ctxt->catalogs, URL);
xmlFree(URL);
}
return;
error:
ctxt->errNo = XML_WAR_CATALOG_PI;
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"Catalog PI syntax error: %s\n", catalog);
if (URL != NULL)
xmlFree(URL);
}
#endif
/**
* 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) {
xmlChar *buf = NULL;
int len = 0;
int size = XML_PARSER_BUFFER_SIZE;
int cur, l;
xmlChar *target;
xmlParserInputState state;
int count = 0;
if ((RAW == '<') && (NXT(1) == '?')) {
xmlParserInputPtr input = ctxt->input;
state = ctxt->instate;
ctxt->instate = XML_PARSER_PI;
/*
* 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) {
if ((RAW == '?') && (NXT(1) == '>')) {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PI declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP(2);
/*
* SAX: PI detected.
*/
if ((ctxt->sax) && (!ctxt->disableSAX) &&
(ctxt->sax->processingInstruction != NULL))
ctxt->sax->processingInstruction(ctxt->userData,
target, NULL);
ctxt->instate = state;
xmlFree(target);
return;
}
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
ctxt->instate = state;
return;
}
cur = CUR;
if (!IS_BLANK(cur)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI: PI %s space expected\n", target);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
cur = CUR_CHAR(l);
while (IS_CHAR(cur) && /* checked */
((cur != '?') || (NXT(1) != '>'))) {
if (len + 5 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
ctxt->instate = state;
return;
}
}
count++;
if (count > 50) {
GROW;
count = 0;
}
COPY_BUF(l,buf,len,cur);
NEXTL(l);
cur = CUR_CHAR(l);
if (cur == 0) {
SHRINK;
GROW;
cur = CUR_CHAR(l);
}
}
buf[len] = 0;
if (cur != '?') {
ctxt->errNo = XML_ERR_PI_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI: PI %s never end ...\n", target);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PI declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP(2);
#ifdef LIBXML_CATALOG_ENABLED
if (((state == XML_PARSER_MISC) ||
(state == XML_PARSER_START)) &&
(xmlStrEqual(target, XML_CATALOG_PI))) {
xmlCatalogAllow allow = xmlCatalogGetDefaults();
if ((allow == XML_CATA_ALLOW_DOCUMENT) ||
(allow == XML_CATA_ALLOW_ALL))
xmlParseCatalogPI(ctxt, buf);
}
#endif
/*
* SAX: PI detected.
*/
if ((ctxt->sax) && (!ctxt->disableSAX) &&
(ctxt->sax->processingInstruction != NULL))
ctxt->sax->processingInstruction(ctxt->userData,
target, buf);
}
xmlFree(buf);
xmlFree(target);
} else {
ctxt->errNo = XML_ERR_PI_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePI : no target name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
ctxt->instate = state;
}
}
/**
* 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) {
xmlChar *name;
xmlChar *Pubid;
xmlChar *Systemid;
if ((RAW == '<') && (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')) {
xmlParserInputPtr input = ctxt->input;
SHRINK;
SKIP(10);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after '<!NOTATION'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NOTATION_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"NOTATION: Name expected here\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the NOTATION name'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
SKIP_BLANKS;
/*
* Parse the IDs.
*/
Systemid = xmlParseExternalID(ctxt, &Pubid, 0);
SKIP_BLANKS;
if (RAW == '>') {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Notation declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->notationDecl != NULL))
ctxt->sax->notationDecl(ctxt->userData, name, Pubid, Systemid);
} else {
ctxt->errNo = XML_ERR_NOTATION_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'>' required to close NOTATION declaration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
if (Systemid != NULL) xmlFree(Systemid);
if (Pubid != NULL) xmlFree(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) {
xmlChar *name = NULL;
xmlChar *value = NULL;
xmlChar *URI = NULL, *literal = NULL;
xmlChar *ndata = NULL;
int isParameter = 0;
xmlChar *orig = NULL;
int skipped;
GROW;
if ((RAW == '<') && (NXT(1) == '!') &&
(NXT(2) == 'E') && (NXT(3) == 'N') &&
(NXT(4) == 'T') && (NXT(5) == 'I') &&
(NXT(6) == 'T') && (NXT(7) == 'Y')) {
xmlParserInputPtr input = ctxt->input;
SHRINK;
SKIP(8);
skipped = SKIP_BLANKS;
if (skipped == 0) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after '<!ENTITY'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (RAW == '%') {
NEXT;
skipped = SKIP_BLANKS;
if (skipped == 0) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after '%'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
isParameter = 1;
}
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseEntityDecl: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
skipped = SKIP_BLANKS;
if (skipped == 0) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the entity name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
ctxt->instate = XML_PARSER_ENTITY_DECL;
/*
* handle the various case of definitions...
*/
if (isParameter) {
if ((RAW == '"') || (RAW == '\'')) {
value = xmlParseEntityValue(ctxt, &orig);
if (value) {
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) && (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 == NULL) && (literal == NULL)) {
ctxt->errNo = XML_ERR_VALUE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity value required\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (URI) {
xmlURIPtr uri;
uri = xmlParseURI((const char *) URI);
if (uri == NULL) {
ctxt->errNo = XML_ERR_INVALID_URI;
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Invalid URI: %s\n", URI);
/*
* This really ought to be a well formedness error
* but the XML Core WG decided otherwise c.f. issue
* E26 of the XML erratas.
*/
} else {
if (uri->fragment != NULL) {
ctxt->errNo = XML_ERR_URI_FRAGMENT;
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Fragment not allowed: %s\n", URI);
/*
* Okay this is foolish to block those but not
* invalid URIs.
*/
ctxt->wellFormed = 0;
} else {
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) &&
(ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_EXTERNAL_PARAMETER_ENTITY,
literal, URI, NULL);
}
xmlFreeURI(uri);
}
}
}
} else {
if ((RAW == '"') || (RAW == '\'')) {
value = xmlParseEntityValue(ctxt, &orig);
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_INTERNAL_GENERAL_ENTITY,
NULL, NULL, value);
/*
* For expat compatibility in SAX mode.
*/
if ((ctxt->myDoc == NULL) ||
(xmlStrEqual(ctxt->myDoc->version, SAX_COMPAT_MODE))) {
if (ctxt->myDoc == NULL) {
ctxt->myDoc = xmlNewDoc(SAX_COMPAT_MODE);
}
if (ctxt->myDoc->intSubset == NULL)
ctxt->myDoc->intSubset = xmlNewDtd(ctxt->myDoc,
BAD_CAST "fake", NULL, NULL);
entityDecl(ctxt, name, XML_INTERNAL_GENERAL_ENTITY,
NULL, NULL, value);
}
} else {
URI = xmlParseExternalID(ctxt, &literal, 1);
if ((URI == NULL) && (literal == NULL)) {
ctxt->errNo = XML_ERR_VALUE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity value required\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (URI) {
xmlURIPtr uri;
uri = xmlParseURI((const char *)URI);
if (uri == NULL) {
ctxt->errNo = XML_ERR_INVALID_URI;
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Invalid URI: %s\n", URI);
/*
* This really ought to be a well formedness error
* but the XML Core WG decided otherwise c.f. issue
* E26 of the XML erratas.
*/
} else {
if (uri->fragment != NULL) {
ctxt->errNo = XML_ERR_URI_FRAGMENT;
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Fragment not allowed: %s\n", URI);
/*
* Okay this is foolish to block those but not
* invalid URIs.
*/
ctxt->wellFormed = 0;
}
xmlFreeURI(uri);
}
}
if ((RAW != '>') && (!IS_BLANK(CUR))) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required before 'NDATA'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
if ((RAW == 'N') && (NXT(1) == 'D') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'A')) {
SKIP(5);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'NDATA'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
ndata = xmlParseName(ctxt);
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->unparsedEntityDecl != NULL))
ctxt->sax->unparsedEntityDecl(ctxt->userData, name,
literal, URI, ndata);
} else {
if ((ctxt->sax != NULL) &&
(!ctxt->disableSAX) && (ctxt->sax->entityDecl != NULL))
ctxt->sax->entityDecl(ctxt->userData, name,
XML_EXTERNAL_GENERAL_PARSED_ENTITY,
literal, URI, NULL);
/*
* For expat compatibility in SAX mode.
* assuming the entity repalcement was asked for
*/
if ((ctxt->replaceEntities != 0) &&
((ctxt->myDoc == NULL) ||
(xmlStrEqual(ctxt->myDoc->version, SAX_COMPAT_MODE)))) {
if (ctxt->myDoc == NULL) {
ctxt->myDoc = xmlNewDoc(SAX_COMPAT_MODE);
}
if (ctxt->myDoc->intSubset == NULL)
ctxt->myDoc->intSubset = xmlNewDtd(ctxt->myDoc,
BAD_CAST "fake", NULL, NULL);
entityDecl(ctxt, name,
XML_EXTERNAL_GENERAL_PARSED_ENTITY,
literal, URI, NULL);
}
}
}
}
SKIP_BLANKS;
if (RAW != '>') {
ctxt->errNo = XML_ERR_ENTITY_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityDecl: entity %s not terminated\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
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->userData, name);
} else {
if ((ctxt->sax != NULL) &&
(ctxt->sax->getEntity != NULL))
cur = ctxt->sax->getEntity(ctxt->userData, name);
if ((cur == NULL) && (ctxt->userData==ctxt)) {
cur = getEntity(ctxt, name);
}
}
if (cur != NULL) {
if (cur->orig != NULL)
xmlFree(orig);
else
cur->orig = orig;
} else
xmlFree(orig);
}
if (name != NULL) xmlFree(name);
if (value != NULL) xmlFree(value);
if (URI != NULL) xmlFree(URI);
if (literal != NULL) xmlFree(literal);
if (ndata != NULL) xmlFree(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, xmlChar **value) {
int val;
xmlChar *ret;
*value = NULL;
if ((RAW == '#') && (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 ((RAW == '#') && (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 ((RAW == '#') && (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)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after '#FIXED'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} 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) {
xmlChar *name;
xmlEnumerationPtr ret = NULL, last = NULL, cur;
if (RAW != '(') {
ctxt->errNo = XML_ERR_NOTATION_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'(' required to start 'NOTATION'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
SHRINK;
do {
NEXT;
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Name expected in NOTATION declaration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(ret);
}
cur = xmlCreateEnumeration(name);
xmlFree(name);
if (cur == NULL) return(ret);
if (last == NULL) ret = last = cur;
else {
last->next = cur;
last = cur;
}
SKIP_BLANKS;
} while (RAW == '|');
if (RAW != ')') {
ctxt->errNo = XML_ERR_NOTATION_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"')' required to finish NOTATION declaration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if ((last != NULL) && (last != ret))
xmlFreeEnumeration(last);
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) {
xmlChar *name;
xmlEnumerationPtr ret = NULL, last = NULL, cur;
if (RAW != '(') {
ctxt->errNo = XML_ERR_ATTLIST_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"'(' required to start ATTLIST enumeration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
SHRINK;
do {
NEXT;
SKIP_BLANKS;
name = xmlParseNmtoken(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NMTOKEN_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"NmToken expected in ATTLIST enumeration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(ret);
}
cur = xmlCreateEnumeration(name);
xmlFree(name);
if (cur == NULL) return(ret);
if (last == NULL) ret = last = cur;
else {
last->next = cur;
last = cur;
}
SKIP_BLANKS;
} while (RAW == '|');
if (RAW != ')') {
ctxt->errNo = XML_ERR_ATTLIST_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"')' required to finish ATTLIST enumeration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
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 ((RAW == '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)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'NOTATION'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
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; 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; 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 ((RAW == 'C') && (NXT(1) == 'D') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'A')) {
SKIP(5);
return(XML_ATTRIBUTE_CDATA);
} else if ((RAW == 'I') && (NXT(1) == 'D') &&
(NXT(2) == 'R') && (NXT(3) == 'E') &&
(NXT(4) == 'F') && (NXT(5) == 'S')) {
SKIP(6);
return(XML_ATTRIBUTE_IDREFS);
} else if ((RAW == 'I') && (NXT(1) == 'D') &&
(NXT(2) == 'R') && (NXT(3) == 'E') &&
(NXT(4) == 'F')) {
SKIP(5);
return(XML_ATTRIBUTE_IDREF);
} else if ((RAW == 'I') && (NXT(1) == 'D')) {
SKIP(2);
return(XML_ATTRIBUTE_ID);
} else if ((RAW == 'E') && (NXT(1) == 'N') &&
(NXT(2) == 'T') && (NXT(3) == 'I') &&
(NXT(4) == 'T') && (NXT(5) == 'Y')) {
SKIP(6);
return(XML_ATTRIBUTE_ENTITY);
} else if ((RAW == '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 ((RAW == '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 ((RAW == '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) {
xmlChar *elemName;
xmlChar *attrName;
xmlEnumerationPtr tree;
if ((RAW == '<') && (NXT(1) == '!') &&
(NXT(2) == 'A') && (NXT(3) == 'T') &&
(NXT(4) == 'T') && (NXT(5) == 'L') &&
(NXT(6) == 'I') && (NXT(7) == 'S') &&
(NXT(8) == 'T')) {
xmlParserInputPtr input = ctxt->input;
SKIP(9);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after '<!ATTLIST'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
elemName = xmlParseName(ctxt);
if (elemName == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"ATTLIST: no name for Element\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
SKIP_BLANKS;
GROW;
while (RAW != '>') {
const xmlChar *check = CUR_PTR;
int type;
int def;
xmlChar *defaultValue = NULL;
GROW;
tree = NULL;
attrName = xmlParseName(ctxt);
if (attrName == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"ATTLIST: no name for Attribute\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
}
GROW;
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
break;
}
SKIP_BLANKS;
type = xmlParseAttributeType(ctxt, &tree);
if (type <= 0) {
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
break;
}
GROW;
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute type\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
if (tree != NULL)
xmlFreeEnumeration(tree);
break;
}
SKIP_BLANKS;
def = xmlParseDefaultDecl(ctxt, &defaultValue);
if (def <= 0) {
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
if (tree != NULL)
xmlFreeEnumeration(tree);
break;
}
GROW;
if (RAW != '>') {
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the attribute default value\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
if (tree != NULL)
xmlFreeEnumeration(tree);
break;
}
SKIP_BLANKS;
}
if (check == CUR_PTR) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseAttributeListDecl: detected internal error\n");
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
if (tree != NULL)
xmlFreeEnumeration(tree);
break;
}
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->attributeDecl != NULL))
ctxt->sax->attributeDecl(ctxt->userData, elemName, attrName,
type, def, defaultValue, tree);
if (attrName != NULL)
xmlFree(attrName);
if (defaultValue != NULL)
xmlFree(defaultValue);
GROW;
}
if (RAW == '>') {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute list declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
}
xmlFree(elemName);
}
}
/**
* xmlParseElementMixedContentDecl:
* @ctxt: an XML parser context
* @inputchk: the input used for the current entity, needed for boundary checks
*
* 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, xmlParserInputPtr inputchk) {
xmlElementContentPtr ret = NULL, cur = NULL, n;
xmlChar *elem = NULL;
GROW;
if ((RAW == '#') && (NXT(1) == 'P') &&
(NXT(2) == 'C') && (NXT(3) == 'D') &&
(NXT(4) == 'A') && (NXT(5) == 'T') &&
(NXT(6) == 'A')) {
SKIP(7);
SKIP_BLANKS;
SHRINK;
if (RAW == ')') {
if ((ctxt->validate) && (ctxt->input != inputchk)) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if (ctxt->vctxt.error != NULL)
ctxt->vctxt.error(ctxt->vctxt.userData,
"Element content declaration doesn't start and stop in the same entity\n");
ctxt->valid = 0;
}
NEXT;
ret = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_PCDATA);
if (RAW == '*') {
ret->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
}
return(ret);
}
if ((RAW == '(') || (RAW == '|')) {
ret = cur = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_PCDATA);
if (ret == NULL) return(NULL);
}
while (RAW == '|') {
NEXT;
if (elem == NULL) {
ret = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (ret == NULL) return(NULL);
ret->c1 = cur;
if (cur != NULL)
cur->parent = ret;
cur = ret;
} else {
n = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (n == NULL) return(NULL);
n->c1 = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
if (n->c1 != NULL)
n->c1->parent = n;
cur->c2 = n;
if (n != NULL)
n->parent = cur;
cur = n;
xmlFree(elem);
}
SKIP_BLANKS;
elem = xmlParseName(ctxt);
if (elem == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : Name expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFreeElementContent(cur);
return(NULL);
}
SKIP_BLANKS;
GROW;
}
if ((RAW == ')') && (NXT(1) == '*')) {
if (elem != NULL) {
cur->c2 = xmlNewElementContent(elem,
XML_ELEMENT_CONTENT_ELEMENT);
if (cur->c2 != NULL)
cur->c2->parent = cur;
xmlFree(elem);
}
ret->ocur = XML_ELEMENT_CONTENT_MULT;
if ((ctxt->validate) && (ctxt->input != inputchk)) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if (ctxt->vctxt.error != NULL)
ctxt->vctxt.error(ctxt->vctxt.userData,
"Element content declaration doesn't start and stop in the same entity\n");
ctxt->valid = 0;
}
SKIP(2);
} else {
if (elem != NULL) xmlFree(elem);
xmlFreeElementContent(ret);
ctxt->errNo = XML_ERR_MIXED_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : '|' or ')*' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
} else {
ctxt->errNo = XML_ERR_PCDATA_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementMixedContentDecl : '#PCDATA' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
return(ret);
}
/**
* xmlParseElementChildrenContentDecl:
* @ctxt: an XML parser context
* @inputchk: the input used for the current entity, needed for boundary checks
*
* 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 parenthesized 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, xmlParserInputPtr inputchk) {
xmlElementContentPtr ret = NULL, cur = NULL, last = NULL, op = NULL;
xmlChar *elem;
xmlChar type = 0;
SKIP_BLANKS;
GROW;
if (RAW == '(') {
xmlParserInputPtr input = ctxt->input;
/* Recurse on first child */
NEXT;
SKIP_BLANKS;
cur = ret = xmlParseElementChildrenContentDecl(ctxt, input);
SKIP_BLANKS;
GROW;
} else {
elem = xmlParseName(ctxt);
if (elem == NULL) {
ctxt->errNo = XML_ERR_ELEMCONTENT_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : Name or '(' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
cur = ret = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
if (cur == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : out of memory\n");
ctxt->errNo = XML_ERR_NO_MEMORY;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(elem);
return(NULL);
}
GROW;
if (RAW == '?') {
cur->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (RAW == '*') {
cur->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
} else if (RAW == '+') {
cur->ocur = XML_ELEMENT_CONTENT_PLUS;
NEXT;
} else {
cur->ocur = XML_ELEMENT_CONTENT_ONCE;
}
xmlFree(elem);
GROW;
}
SKIP_BLANKS;
SHRINK;
while (RAW != ')') {
/*
* Each loop we parse one separator and one element.
*/
if (RAW == ',') {
if (type == 0) type = CUR;
/*
* Detect "Name | Name , Name" error
*/
else if (type != CUR) {
ctxt->errNo = XML_ERR_SEPARATOR_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : '%c' expected\n",
type);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if ((last != NULL) && (last != ret))
xmlFreeElementContent(last);
if (ret != NULL)
xmlFreeElementContent(ret);
return(NULL);
}
NEXT;
op = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_SEQ);
if (op == NULL) {
if ((last != NULL) && (last != ret))
xmlFreeElementContent(last);
xmlFreeElementContent(ret);
return(NULL);
}
if (last == NULL) {
op->c1 = ret;
if (ret != NULL)
ret->parent = op;
ret = cur = op;
} else {
cur->c2 = op;
if (op != NULL)
op->parent = cur;
op->c1 = last;
if (last != NULL)
last->parent = op;
cur =op;
last = NULL;
}
} else if (RAW == '|') {
if (type == 0) type = CUR;
/*
* Detect "Name , Name | Name" error
*/
else if (type != CUR) {
ctxt->errNo = XML_ERR_SEPARATOR_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : '%c' expected\n",
type);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if ((last != NULL) && (last != ret))
xmlFreeElementContent(last);
if (ret != NULL)
xmlFreeElementContent(ret);
return(NULL);
}
NEXT;
op = xmlNewElementContent(NULL, XML_ELEMENT_CONTENT_OR);
if (op == NULL) {
if ((last != NULL) && (last != ret))
xmlFreeElementContent(last);
if (ret != NULL)
xmlFreeElementContent(ret);
return(NULL);
}
if (last == NULL) {
op->c1 = ret;
if (ret != NULL)
ret->parent = op;
ret = cur = op;
} else {
cur->c2 = op;
if (op != NULL)
op->parent = cur;
op->c1 = last;
if (last != NULL)
last->parent = op;
cur =op;
last = NULL;
}
} else {
ctxt->errNo = XML_ERR_ELEMCONTENT_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : ',' '|' or ')' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (ret != NULL)
xmlFreeElementContent(ret);
return(NULL);
}
GROW;
SKIP_BLANKS;
GROW;
if (RAW == '(') {
xmlParserInputPtr input = ctxt->input;
/* Recurse on second child */
NEXT;
SKIP_BLANKS;
last = xmlParseElementChildrenContentDecl(ctxt, input);
SKIP_BLANKS;
} else {
elem = xmlParseName(ctxt);
if (elem == NULL) {
ctxt->errNo = XML_ERR_ELEMCONTENT_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementChildrenContentDecl : Name or '(' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (ret != NULL)
xmlFreeElementContent(ret);
return(NULL);
}
last = xmlNewElementContent(elem, XML_ELEMENT_CONTENT_ELEMENT);
xmlFree(elem);
if (RAW == '?') {
last->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (RAW == '*') {
last->ocur = XML_ELEMENT_CONTENT_MULT;
NEXT;
} else if (RAW == '+') {
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;
if (last != NULL)
last->parent = cur;
}
if ((ctxt->validate) && (ctxt->input != inputchk)) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if (ctxt->vctxt.error != NULL)
ctxt->vctxt.error(ctxt->vctxt.userData,
"Element content declaration doesn't start and stop in the same entity\n");
ctxt->valid = 0;
}
NEXT;
if (RAW == '?') {
if (ret != NULL)
ret->ocur = XML_ELEMENT_CONTENT_OPT;
NEXT;
} else if (RAW == '*') {
if (ret != NULL) {
ret->ocur = XML_ELEMENT_CONTENT_MULT;
cur = ret;
/*
* Some normalization:
* (a | b* | c?)* == (a | b | c)*
*/
while (cur->type == XML_ELEMENT_CONTENT_OR) {
if ((cur->c1 != NULL) &&
((cur->c1->ocur == XML_ELEMENT_CONTENT_OPT) ||
(cur->c1->ocur == XML_ELEMENT_CONTENT_MULT)))
cur->c1->ocur = XML_ELEMENT_CONTENT_ONCE;
if ((cur->c2 != NULL) &&
((cur->c2->ocur == XML_ELEMENT_CONTENT_OPT) ||
(cur->c2->ocur == XML_ELEMENT_CONTENT_MULT)))
cur->c2->ocur = XML_ELEMENT_CONTENT_ONCE;
cur = cur->c2;
}
}
NEXT;
} else if (RAW == '+') {
if (ret != NULL) {
int found = 0;
ret->ocur = XML_ELEMENT_CONTENT_PLUS;
/*
* Some normalization:
* (a | b*)+ == (a | b)*
* (a | b?)+ == (a | b)*
*/
while (cur->type == XML_ELEMENT_CONTENT_OR) {
if ((cur->c1 != NULL) &&
((cur->c1->ocur == XML_ELEMENT_CONTENT_OPT) ||
(cur->c1->ocur == XML_ELEMENT_CONTENT_MULT))) {
cur->c1->ocur = XML_ELEMENT_CONTENT_ONCE;
found = 1;
}
if ((cur->c2 != NULL) &&
((cur->c2->ocur == XML_ELEMENT_CONTENT_OPT) ||
(cur->c2->ocur == XML_ELEMENT_CONTENT_MULT))) {
cur->c2->ocur = XML_ELEMENT_CONTENT_ONCE;
found = 1;
}
cur = cur->c2;
}
if (found)
ret->ocur = XML_ELEMENT_CONTENT_MULT;
}
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, xmlChar *name,
xmlElementContentPtr *result) {
xmlElementContentPtr tree = NULL;
xmlParserInputPtr input = ctxt->input;
int res;
*result = NULL;
if (RAW != '(') {
ctxt->errNo = XML_ERR_ELEMCONTENT_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementContentDecl : %s '(' expected\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(-1);
}
NEXT;
GROW;
SKIP_BLANKS;
if ((RAW == '#') && (NXT(1) == 'P') &&
(NXT(2) == 'C') && (NXT(3) == 'D') &&
(NXT(4) == 'A') && (NXT(5) == 'T') &&
(NXT(6) == 'A')) {
tree = xmlParseElementMixedContentDecl(ctxt, input);
res = XML_ELEMENT_TYPE_MIXED;
} else {
tree = xmlParseElementChildrenContentDecl(ctxt, input);
res = XML_ELEMENT_TYPE_ELEMENT;
}
SKIP_BLANKS;
*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) {
xmlChar *name;
int ret = -1;
xmlElementContentPtr content = NULL;
GROW;
if ((RAW == '<') && (NXT(1) == '!') &&
(NXT(2) == 'E') && (NXT(3) == 'L') &&
(NXT(4) == 'E') && (NXT(5) == 'M') &&
(NXT(6) == 'E') && (NXT(7) == 'N') &&
(NXT(8) == 'T')) {
xmlParserInputPtr input = ctxt->input;
SKIP(9);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after 'ELEMENT'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: no name for Element\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(-1);
}
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space required after the element name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
if ((RAW == '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 ((RAW == 'A') && (NXT(1) == 'N') &&
(NXT(2) == 'Y')) {
SKIP(3);
/*
* Element is a generic container.
*/
ret = XML_ELEMENT_TYPE_ANY;
} else if (RAW == '(') {
ret = xmlParseElementContentDecl(ctxt, name, &content);
} else {
/*
* [ WFC: PEs in Internal Subset ] error handling.
*/
if ((RAW == '%') && (ctxt->external == 0) &&
(ctxt->inputNr == 1)) {
ctxt->errNo = XML_ERR_PEREF_IN_INT_SUBSET;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: forbidden within markup decl in internal subset\n");
} else {
ctxt->errNo = XML_ERR_ELEMCONTENT_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: 'EMPTY', 'ANY' or '(' expected\n");
}
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (name != NULL) xmlFree(name);
return(-1);
}
SKIP_BLANKS;
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
SKIP_BLANKS;
if (RAW != '>') {
ctxt->errNo = XML_ERR_GT_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseElementDecl: expected '>' at the end\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (input != ctxt->input) {
ctxt->errNo = XML_ERR_ENTITY_BOUNDARY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Element declaration doesn't start and stop in the same entity\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->elementDecl != NULL))
ctxt->sax->elementDecl(ctxt->userData, name, ret,
content);
}
if (content != NULL) {
xmlFreeElementContent(content);
}
if (name != NULL) {
xmlFree(name);
}
}
return(ret);
}
/**
* xmlParseConditionalSections
* @ctxt: an XML parser context
*
* [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*)
*/
static void
xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
SKIP(3);
SKIP_BLANKS;
if ((RAW == 'I') && (NXT(1) == 'N') && (NXT(2) == 'C') &&
(NXT(3) == 'L') && (NXT(4) == 'U') && (NXT(5) == 'D') &&
(NXT(6) == 'E')) {
SKIP(7);
SKIP_BLANKS;
if (RAW != '[') {
ctxt->errNo = XML_ERR_CONDSEC_INVALID;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML conditional section '[' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
NEXT;
}
if (xmlParserDebugEntities) {
if ((ctxt->input != NULL) && (ctxt->input->filename))
xmlGenericError(xmlGenericErrorContext,
"%s(%d): ", ctxt->input->filename,
ctxt->input->line);
xmlGenericError(xmlGenericErrorContext,
"Entering INCLUDE Conditional Section\n");
}
while ((RAW != 0) && ((RAW != ']') || (NXT(1) != ']') ||
(NXT(2) != '>'))) {
const xmlChar *check = CUR_PTR;
unsigned int cons = ctxt->input->consumed;
if ((RAW == '<') && (NXT(1) == '!') && (NXT(2) == '[')) {
xmlParseConditionalSections(ctxt);
} else if (IS_BLANK(CUR)) {
NEXT;
} else if (RAW == '%') {
xmlParsePEReference(ctxt);
} else
xmlParseMarkupDecl(ctxt);
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
ctxt->errNo = XML_ERR_EXT_SUBSET_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Content error in the external subset\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
}
}
if (xmlParserDebugEntities) {
if ((ctxt->input != NULL) && (ctxt->input->filename))
xmlGenericError(xmlGenericErrorContext,
"%s(%d): ", ctxt->input->filename,
ctxt->input->line);
xmlGenericError(xmlGenericErrorContext,
"Leaving INCLUDE Conditional Section\n");
}
} else if ((RAW == 'I') && (NXT(1) == 'G') && (NXT(2) == 'N') &&
(NXT(3) == 'O') && (NXT(4) == 'R') && (NXT(5) == 'E')) {
int state;
xmlParserInputState instate;
int depth = 0;
SKIP(6);
SKIP_BLANKS;
if (RAW != '[') {
ctxt->errNo = XML_ERR_CONDSEC_INVALID;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML conditional section '[' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
NEXT;
}
if (xmlParserDebugEntities) {
if ((ctxt->input != NULL) && (ctxt->input->filename))
xmlGenericError(xmlGenericErrorContext,
"%s(%d): ", ctxt->input->filename,
ctxt->input->line);
xmlGenericError(xmlGenericErrorContext,
"Entering IGNORE Conditional Section\n");
}
/*
* Parse up to the end of the conditional section
* But disable SAX event generating DTD building in the meantime
*/
state = ctxt->disableSAX;
instate = ctxt->instate;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_IGNORE;
while ((depth >= 0) && (RAW != 0)) {
if ((RAW == '<') && (NXT(1) == '!') && (NXT(2) == '[')) {
depth++;
SKIP(3);
continue;
}
if ((RAW == ']') && (NXT(1) == ']') && (NXT(2) == '>')) {
if (--depth >= 0) SKIP(3);
continue;
}
NEXT;
continue;
}
ctxt->disableSAX = state;
ctxt->instate = instate;
if (xmlParserDebugEntities) {
if ((ctxt->input != NULL) && (ctxt->input->filename))
xmlGenericError(xmlGenericErrorContext,
"%s(%d): ", ctxt->input->filename,
ctxt->input->line);
xmlGenericError(xmlGenericErrorContext,
"Leaving IGNORE Conditional Section\n");
}
} else {
ctxt->errNo = XML_ERR_CONDSEC_INVALID;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML conditional section INCLUDE or IGNORE keyword expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (RAW == 0)
SHRINK;
if (RAW == 0) {
ctxt->errNo = XML_ERR_CONDSEC_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML conditional section not closed\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
SKIP(3);
}
}
/**
* xmlParseMarkupDecl:
* @ctxt: an XML parser context
*
* parse Markup declarations
*
* [29] markupdecl ::= elementdecl | AttlistDecl | EntityDecl |
* NotationDecl | PI | Comment
*
* [ VC: Proper Declaration/PE Nesting ]
* 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);
/*
* Conditional sections are allowed from entities included
* by PE References in the internal subset.
*/
if ((ctxt->external == 0) && (ctxt->inputNr > 1)) {
if ((RAW == '<') && (NXT(1) == '!') && (NXT(2) == '[')) {
xmlParseConditionalSections(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? '?>'
*
* Question: Seems that EncodingDecl is mandatory ? Is that a typo ?
*/
void
xmlParseTextDecl(xmlParserCtxtPtr ctxt) {
xmlChar *version;
/*
* We know that '<?xml' is here.
*/
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
SKIP(5);
} else {
ctxt->errNo = XML_ERR_XMLDECL_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Text declaration '<?xml' required\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Space needed after '<?xml'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
/*
* We may have the VersionInfo here.
*/
version = xmlParseVersionInfo(ctxt);
if (version == NULL)
version = xmlCharStrdup(XML_DEFAULT_VERSION);
else {
if (!IS_BLANK(CUR)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Space needed here\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
ctxt->input->version = version;
/*
* We must have the encoding declaration
*/
xmlParseEncodingDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
return;
}
SKIP_BLANKS;
if ((RAW == '?') && (NXT(1) == '>')) {
SKIP(2);
} else if (RAW == '>') {
/* Deprecated old WD ... */
ctxt->errNo = XML_ERR_XMLDECL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML declaration must end-up with '?>'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
NEXT;
} else {
ctxt->errNo = XML_ERR_XMLDECL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"parsing XML declaration: '?>' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
MOVETO_ENDTAG(CUR_PTR);
NEXT;
}
}
/**
* xmlParseExternalSubset:
* @ctxt: an XML parser context
* @ExternalID: the external identifier
* @SystemID: the system identifier (or URL)
*
* parse Markup declarations from an external subset
*
* [30] extSubset ::= textDecl? extSubsetDecl
*
* [31] extSubsetDecl ::= (markupdecl | conditionalSect | PEReference | S) *
*/
void
xmlParseExternalSubset(xmlParserCtxtPtr ctxt, const xmlChar *ExternalID,
const xmlChar *SystemID) {
GROW;
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l')) {
xmlParseTextDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
ctxt->instate = XML_PARSER_EOF;
return;
}
}
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 (((RAW == '<') && (NXT(1) == '?')) ||
((RAW == '<') && (NXT(1) == '!')) ||
(RAW == '%') || IS_BLANK(CUR)) {
const xmlChar *check = CUR_PTR;
unsigned int cons = ctxt->input->consumed;
GROW;
if ((RAW == '<') && (NXT(1) == '!') && (NXT(2) == '[')) {
xmlParseConditionalSections(ctxt);
} else if (IS_BLANK(CUR)) {
NEXT;
} else if (RAW == '%') {
xmlParsePEReference(ctxt);
} else
xmlParseMarkupDecl(ctxt);
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
ctxt->errNo = XML_ERR_EXT_SUBSET_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Content error in the external subset\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
}
}
if (RAW != 0) {
ctxt->errNo = XML_ERR_EXT_SUBSET_NOT_FINISHED;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
/**
* 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;
xmlChar *val;
if (RAW != '&') return;
if (NXT(1) == '#') {
int i = 0;
xmlChar out[10];
int hex = NXT(2);
int value = xmlParseCharRef(ctxt);
if (ctxt->charset != XML_CHAR_ENCODING_UTF8) {
/*
* So we are using non-UTF-8 buffers
* Check that the char fit on 8bits, if not
* generate a CharRef.
*/
if (value <= 0xFF) {
out[0] = value;
out[1] = 0;
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->characters(ctxt->userData, out, 1);
} else {
if ((hex == 'x') || (hex == 'X'))
snprintf((char *)out, sizeof(out), "#x%X", value);
else
snprintf((char *)out, sizeof(out), "#%d", value);
if ((ctxt->sax != NULL) && (ctxt->sax->reference != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->reference(ctxt->userData, out);
}
} else {
/*
* Just encode the value in UTF-8
*/
COPY_BUF(0 ,out, i, value);
out[i] = 0;
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->characters(ctxt->userData, out, i);
}
} else {
ent = xmlParseEntityRef(ctxt);
if (ent == NULL) return;
if (!ctxt->wellFormed)
return;
if ((ent->name != NULL) &&
(ent->etype != XML_INTERNAL_PREDEFINED_ENTITY)) {
xmlNodePtr list = NULL;
int ret;
/*
* The first reference to the entity trigger a parsing phase
* where the ent->children is filled with the result from
* the parsing.
*/
if (ent->children == NULL) {
xmlChar *value;
value = ent->content;
/*
* Check that this entity is well formed
*/
if ((value != NULL) &&
(value[1] == 0) && (value[0] == '<') &&
(xmlStrEqual(ent->name, BAD_CAST "lt"))) {
/*
* DONE: get definite answer on this !!!
* Lots of entity decls are used to declare a single
* char
* <!ENTITY lt "<">
* Which seems to be valid since
* 2.4: The ampersand character (&) and the left angle
* bracket (<) may appear in their literal form only
* when used ... They are also legal within the literal
* entity value of an internal entity declaration;i
* see "4.3.2 Well-Formed Parsed Entities".
* IMHO 2.4 and 4.3.2 are directly in contradiction.
* Looking at the OASIS test suite and James Clark
* tests, this is broken. However the XML REC uses
* it. Is the XML REC not well-formed ????
* This is a hack to avoid this problem
*
* ANSWER: since lt gt amp .. are already defined,
* this is a redefinition and hence the fact that the
* content is not well balanced is not a Wf error, this
* is lousy but acceptable.
*/
list = xmlNewDocText(ctxt->myDoc, value);
if (list != NULL) {
if ((ent->etype == XML_INTERNAL_GENERAL_ENTITY) &&
(ent->children == NULL)) {
ent->children = list;
ent->last = list;
ent->owner = 1;
list->parent = (xmlNodePtr) ent;
} else {
xmlFreeNodeList(list);
}
} else if (list != NULL) {
xmlFreeNodeList(list);
}
} else {
/*
* 4.3.2: An internal general parsed entity is well-formed
* if its replacement text matches the production labeled
* content.
*/
void *user_data;
/*
* This is a bit hackish but this seems the best
* way to make sure both SAX and DOM entity support
* behaves okay.
*/
if (ctxt->userData == ctxt)
user_data = NULL;
else
user_data = ctxt->userData;
if (ent->etype == XML_INTERNAL_GENERAL_ENTITY) {
ctxt->depth++;
ret = xmlParseBalancedChunkMemoryInternal(ctxt,
value, user_data, &list);
ctxt->depth--;
} else if (ent->etype ==
XML_EXTERNAL_GENERAL_PARSED_ENTITY) {
ctxt->depth++;
ret = xmlParseExternalEntityPrivate(ctxt->myDoc, ctxt,
ctxt->sax, user_data, ctxt->depth,
ent->URI, ent->ExternalID, &list);
ctxt->depth--;
} else {
ret = -1;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Internal: invalid entity type\n");
}
if (ret == XML_ERR_ENTITY_LOOP) {
ctxt->errNo = XML_ERR_ENTITY_LOOP;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Detected entity reference loop\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
} else if ((ret == 0) && (list != NULL)) {
if (((ent->etype == XML_INTERNAL_GENERAL_ENTITY) ||
(ent->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY))&&
(ent->children == NULL)) {
ent->children = list;
if (ctxt->replaceEntities) {
/*
* Prune it directly in the generated document
* except for single text nodes.
*/
if ((list->type == XML_TEXT_NODE) &&
(list->next == NULL)) {
list->parent = (xmlNodePtr) ent;
list = NULL;
ent->owner = 1;
} else {
ent->owner = 0;
while (list != NULL) {
list->parent = (xmlNodePtr) ctxt->node;
list->doc = ctxt->myDoc;
if (list->next == NULL)
ent->last = list;
list = list->next;
}
list = ent->children;
if (ent->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)
xmlAddEntityReference(ent, list, NULL);
}
} else {
ent->owner = 1;
while (list != NULL) {
list->parent = (xmlNodePtr) ent;
if (list->next == NULL)
ent->last = list;
list = list->next;
}
}
} else {
xmlFreeNodeList(list);
list = NULL;
}
} else if (ret > 0) {
ctxt->errNo = ret;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity value required\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (list != NULL) {
xmlFreeNodeList(list);
list = NULL;
}
}
}
if ((ctxt->sax != NULL) && (ctxt->sax->reference != NULL) &&
(ctxt->replaceEntities == 0) && (!ctxt->disableSAX)) {
/*
* Create a node.
*/
ctxt->sax->reference(ctxt->userData, ent->name);
return;
} else if (ctxt->replaceEntities) {
if ((ctxt->node != NULL) && (ent->children != NULL)) {
/*
* Seems we are generating the DOM content, do
* a simple tree copy for all references except the first
* In the first occurrence list contains the replacement
*/
if ((list == NULL) && (ent->owner == 0)) {
xmlNodePtr nw = NULL, cur, firstChild = NULL;
cur = ent->children;
while (cur != NULL) {
nw = xmlCopyNode(cur, 1);
if (nw != NULL) {
nw->_private = cur->_private;
if (firstChild == NULL){
firstChild = nw;
}
xmlAddChild(ctxt->node, nw);
}
if (cur == ent->last)
break;
cur = cur->next;
}
if (ent->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)
xmlAddEntityReference(ent, firstChild, nw);
} else if (list == NULL) {
xmlNodePtr nw = NULL, cur, next, last,
firstChild = NULL;
/*
* Copy the entity child list and make it the new
* entity child list. The goal is to make sure any
* ID or REF referenced will be the one from the
* document content and not the entity copy.
*/
cur = ent->children;
ent->children = NULL;
last = ent->last;
ent->last = NULL;
while (cur != NULL) {
next = cur->next;
cur->next = NULL;
cur->parent = NULL;
nw = xmlCopyNode(cur, 1);
if (nw != NULL) {
nw->_private = cur->_private;
if (firstChild == NULL){
firstChild = cur;
}
xmlAddChild((xmlNodePtr) ent, nw);
xmlAddChild(ctxt->node, cur);
}
if (cur == last)
break;
cur = next;
}
ent->owner = 1;
if (ent->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)
xmlAddEntityReference(ent, firstChild, nw);
} else {
/*
* the name change is to avoid coalescing of the
* node with a possible previous text one which
* would make ent->children a dangling pointer
*/
if (ent->children->type == XML_TEXT_NODE)
ent->children->name = xmlStrdup(BAD_CAST "nbktext");
if ((ent->last != ent->children) &&
(ent->last->type == XML_TEXT_NODE))
ent->last->name = xmlStrdup(BAD_CAST "nbktext");
xmlAddChildList(ctxt->node, ent->children);
}
/*
* This is to avoid a nasty side effect, see
* characters() in SAX.c
*/
ctxt->nodemem = 0;
ctxt->nodelen = 0;
return;
} else {
/*
* Probably running in SAX mode
*/
xmlParserInputPtr input;
input = xmlNewEntityInputStream(ctxt, ent);
xmlPushInput(ctxt, input);
if ((ent->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY) &&
(RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
xmlParseTextDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
ctxt->instate = XML_PARSER_EOF;
return;
}
if (input->standalone == 1) {
ctxt->errNo = XML_ERR_EXT_ENTITY_STANDALONE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"external parsed entities cannot be standalone\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
return;
}
}
} else {
val = ent->content;
if (val == NULL) return;
/*
* inline the entity.
*/
if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL) &&
(!ctxt->disableSAX))
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) {
xmlChar *name;
xmlEntityPtr ent = NULL;
GROW;
if (RAW == '&') {
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityRef: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (RAW == ';') {
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 ((ctxt->wellFormed == 1 ) && (ent == NULL))
ent = xmlGetPredefinedEntity(name);
if ((ctxt->wellFormed == 1 ) && (ent == NULL) &&
(ctxt->userData==ctxt)) {
ent = getEntity(ctxt, 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))) {
ctxt->errNo = XML_ERR_UNDECLARED_ENTITY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity '%s' not defined\n", name);
ctxt->wellFormed = 0;
ctxt->valid = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
ctxt->errNo = XML_WAR_UNDECLARED_ENTITY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity '%s' not defined\n", name);
ctxt->valid = 0;
}
}
/*
* [ WFC: Parsed Entity ]
* An entity reference must not contain the name of an
* unparsed entity
*/
else if (ent->etype == XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
ctxt->errNo = XML_ERR_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 (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* [ 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->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)) {
ctxt->errNo = XML_ERR_ENTITY_IS_EXTERNAL;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute references external entity '%s'\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* [ 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) &&
(!xmlStrEqual(ent->name, BAD_CAST "lt")) &&
(ent->content != NULL) &&
(xmlStrchr(ent->content, '<'))) {
ctxt->errNo = XML_ERR_LT_IN_ATTRIBUTE;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* Internal check, no parameter entities here ...
*/
else {
switch (ent->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
ctxt->errNo = XML_ERR_ENTITY_IS_PARAMETER;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
default:
break;
}
}
/*
* [ WFC: No Recursion ]
* A parsed entity must not contain a recursive reference
* to itself, either directly or indirectly.
* Done somewhere else
*/
} else {
ctxt->errNo = XML_ERR_ENTITYREF_SEMICOL_MISSING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEntityRef: expecting ';'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
}
}
return(ent);
}
/**
* xmlParseStringEntityRef:
* @ctxt: an XML parser context
* @str: a pointer to an index in the string
*
* parse ENTITY references declarations, but this version parses it from
* a string value.
*
* [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. The str pointer
* is updated to the current location in the string.
*/
xmlEntityPtr
xmlParseStringEntityRef(xmlParserCtxtPtr ctxt, const xmlChar ** str) {
xmlChar *name;
const xmlChar *ptr;
xmlChar cur;
xmlEntityPtr ent = NULL;
if ((str == NULL) || (*str == NULL))
return(NULL);
ptr = *str;
cur = *ptr;
if (cur == '&') {
ptr++;
cur = *ptr;
name = xmlParseStringName(ctxt, &ptr);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringEntityRef: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (*ptr == ';') {
ptr++;
/*
* 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);
if ((ent == NULL) && (ctxt->userData==ctxt)) {
ent = getEntity(ctxt, 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))) {
ctxt->errNo = XML_ERR_UNDECLARED_ENTITY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Entity '%s' not defined\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
ctxt->errNo = XML_WAR_UNDECLARED_ENTITY;
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->etype == XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
ctxt->errNo = XML_ERR_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 (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* [ 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->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)) {
ctxt->errNo = XML_ERR_ENTITY_IS_EXTERNAL;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute references external entity '%s'\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* [ 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) &&
(!xmlStrEqual(ent->name, BAD_CAST "lt")) &&
(ent->content != NULL) &&
(xmlStrchr(ent->content, '<'))) {
ctxt->errNo = XML_ERR_LT_IN_ATTRIBUTE;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* Internal check, no parameter entities here ...
*/
else {
switch (ent->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
ctxt->errNo = XML_ERR_ENTITY_IS_PARAMETER;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
default:
break;
}
}
/*
* [ WFC: No Recursion ]
* A parsed entity must not contain a recursive reference
* to itself, either directly or indirectly.
* Done somewhere else
*/
} else {
ctxt->errNo = XML_ERR_ENTITYREF_SEMICOL_MISSING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringEntityRef: expecting ';'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
}
}
*str = ptr;
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 ]
* 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) {
xmlChar *name;
xmlEntityPtr entity = NULL;
xmlParserInputPtr input;
if (RAW == '%') {
NEXT;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePEReference: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (RAW == ';') {
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))) {
ctxt->errNo = XML_ERR_UNDECLARED_ENTITY;
if ((!ctxt->disableSAX) &&
(ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} 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->disableSAX) &&
(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->etype != XML_INTERNAL_PARAMETER_ENTITY) &&
(entity->etype != 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 if (ctxt->input->free != deallocblankswrapper) {
input = xmlNewBlanksWrapperInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
} else {
/*
* TODO !!!
* handle the extra spaces added before and after
* c.f. http://www.w3.org/TR/REC-xml#as-PE
*/
input = xmlNewEntityInputStream(ctxt, entity);
xmlPushInput(ctxt, input);
if ((entity->etype == XML_EXTERNAL_PARAMETER_ENTITY) &&
(RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
xmlParseTextDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing
* right here
*/
ctxt->instate = XML_PARSER_EOF;
xmlFree(name);
return;
}
}
}
}
ctxt->hasPErefs = 1;
} else {
ctxt->errNo = XML_ERR_ENTITYREF_SEMICOL_MISSING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParsePEReference: expecting ';'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
}
}
}
/**
* xmlParseStringPEReference:
* @ctxt: an XML parser context
* @str: a pointer to an index in the string
*
* parse PEReference declarations
*
* [69] PEReference ::= '%' Name ';'
*
* [ WFC: No Recursion ]
* 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.
*
* Returns the string of the entity content.
* str is updated to the current value of the index
*/
xmlEntityPtr
xmlParseStringPEReference(xmlParserCtxtPtr ctxt, const xmlChar **str) {
const xmlChar *ptr;
xmlChar cur;
xmlChar *name;
xmlEntityPtr entity = NULL;
if ((str == NULL) || (*str == NULL)) return(NULL);
ptr = *str;
cur = *ptr;
if (cur == '%') {
ptr++;
cur = *ptr;
name = xmlParseStringName(ctxt, &ptr);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringPEReference: no name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
cur = *ptr;
if (cur == ';') {
ptr++;
cur = *ptr;
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))) {
ctxt->errNo = XML_ERR_UNDECLARED_ENTITY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"PEReference: %%%s; not found\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} 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->etype != XML_INTERNAL_PARAMETER_ENTITY) &&
(entity->etype != 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);
}
}
ctxt->hasPErefs = 1;
} else {
ctxt->errNo = XML_ERR_ENTITYREF_SEMICOL_MISSING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStringPEReference: expecting ';'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlFree(name);
}
}
*str = ptr;
return(entity);
}
/**
* 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) {
xmlChar *name = NULL;
xmlChar *ExternalID = NULL;
xmlChar *URI = NULL;
/*
* We know that '<!DOCTYPE' has been detected.
*/
SKIP(9);
SKIP_BLANKS;
/*
* Parse the DOCTYPE name.
*/
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseDocTypeDecl : no DOCTYPE name !\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
ctxt->intSubName = name;
SKIP_BLANKS;
/*
* Check for SystemID and ExternalID
*/
URI = xmlParseExternalID(ctxt, &ExternalID, 1);
if ((URI != NULL) || (ExternalID != NULL)) {
ctxt->hasExternalSubset = 1;
}
ctxt->extSubURI = URI;
ctxt->extSubSystem = ExternalID;
SKIP_BLANKS;
/*
* Create and update the internal subset.
*/
if ((ctxt->sax != NULL) && (ctxt->sax->internalSubset != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->internalSubset(ctxt->userData, name, ExternalID, URI);
/*
* Is there any internal subset declarations ?
* they are handled separately in xmlParseInternalSubset()
*/
if (RAW == '[')
return;
/*
* We should be at the end of the DOCTYPE declaration.
*/
if (RAW != '>') {
ctxt->errNo = XML_ERR_DOCTYPE_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "DOCTYPE improperly terminated\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
}
/**
* xmlParseInternalSubset:
* @ctxt: an XML parser context
*
* parse the internal subset declaration
*
* [28 end] ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
*/
static void
xmlParseInternalSubset(xmlParserCtxtPtr ctxt) {
/*
* Is there any DTD definition ?
*/
if (RAW == '[') {
ctxt->instate = XML_PARSER_DTD;
NEXT;
/*
* Parse the succession of Markup declarations and
* PEReferences.
* Subsequence (markupdecl | PEReference | S)*
*/
while (RAW != ']') {
const xmlChar *check = CUR_PTR;
unsigned int cons = ctxt->input->consumed;
SKIP_BLANKS;
xmlParseMarkupDecl(ctxt);
xmlParsePEReference(ctxt);
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseInternalSubset: error detected in Markup declaration\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
}
}
if (RAW == ']') {
NEXT;
SKIP_BLANKS;
}
}
/*
* We should be at the end of the DOCTYPE declaration.
*/
if (RAW != '>') {
ctxt->errNo = XML_ERR_DOCTYPE_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "DOCTYPE improperly terminated\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
NEXT;
}
/**
* xmlParseAttribute:
* @ctxt: an XML parser context
* @value: a xmlChar ** 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.
*/
xmlChar *
xmlParseAttribute(xmlParserCtxtPtr ctxt, xmlChar **value) {
xmlChar *name, *val;
*value = NULL;
GROW;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "error parsing attribute name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
/*
* read the value
*/
SKIP_BLANKS;
if (RAW == '=') {
NEXT;
SKIP_BLANKS;
val = xmlParseAttValue(ctxt);
ctxt->instate = XML_PARSER_CONTENT;
} else {
ctxt->errNo = XML_ERR_ATTRIBUTE_WITHOUT_VALUE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Specification mandate value for attribute %s\n", name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(name);
return(NULL);
}
/*
* Check that xml:lang conforms to the specification
* No more registered as an error, just generate a warning now
* since this was deprecated in XML second edition
*/
if ((ctxt->pedantic) && (xmlStrEqual(name, BAD_CAST "xml:lang"))) {
if (!xmlCheckLanguageID(val)) {
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData,
"Malformed value for xml:lang : %s\n", val);
}
}
/*
* Check that xml:space conforms to the specification
*/
if (xmlStrEqual(name, BAD_CAST "xml:space")) {
if (xmlStrEqual(val, BAD_CAST "default"))
*(ctxt->space) = 0;
else if (xmlStrEqual(val, BAD_CAST "preserve"))
*(ctxt->space) = 1;
else {
ctxt->errNo = XML_ERR_ATTRIBUTE_WITHOUT_VALUE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Invalid value \"%s\" for xml:space : \"default\" or \"preserve\" expected\n",
val);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
*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
*/
xmlChar *
xmlParseStartTag(xmlParserCtxtPtr ctxt) {
xmlChar *name;
xmlChar *attname;
xmlChar *attvalue;
const xmlChar **atts = NULL;
int nbatts = 0;
int maxatts = 0;
int i;
if (RAW != '<') return(NULL);
NEXT1;
name = xmlParseName(ctxt);
if (name == NULL) {
ctxt->errNo = XML_ERR_NAME_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStartTag: invalid element name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
/*
* Now parse the attributes, it ends up with the ending
*
* (S Attribute)* S?
*/
SKIP_BLANKS;
GROW;
while ((RAW != '>') &&
((RAW != '/') || (NXT(1) != '>')) &&
(IS_CHAR((unsigned int) RAW))) {
const xmlChar *q = CUR_PTR;
unsigned 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 (xmlStrEqual(atts[i], attname)) {
ctxt->errNo = XML_ERR_ATTRIBUTE_REDEFINED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Attribute %s redefined\n",
attname);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(attname);
xmlFree(attvalue);
goto failed;
}
}
/*
* Add the pair to atts
*/
if (atts == NULL) {
maxatts = 10;
atts = (const xmlChar **) xmlMalloc(maxatts * sizeof(xmlChar *));
if (atts == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %ld byte failed\n",
maxatts * (long)sizeof(xmlChar *));
if (attname != NULL)
xmlFree(attname);
if (attvalue != NULL)
xmlFree(attvalue);
ctxt->errNo = XML_ERR_NO_MEMORY;
ctxt->instate = XML_PARSER_EOF;
ctxt->disableSAX = 1;
goto failed;
}
} else if (nbatts + 4 > maxatts) {
const xmlChar **n;
maxatts *= 2;
n = (const xmlChar **) xmlRealloc((void *) atts,
maxatts * sizeof(xmlChar *));
if (n == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %ld byte failed\n",
maxatts * (long)sizeof(xmlChar *));
if (attname != NULL)
xmlFree(attname);
if (attvalue != NULL)
xmlFree(attvalue);
ctxt->errNo = XML_ERR_NO_MEMORY;
ctxt->instate = XML_PARSER_EOF;
ctxt->disableSAX = 1;
goto failed;
}
atts = n;
}
atts[nbatts++] = attname;
atts[nbatts++] = attvalue;
atts[nbatts] = NULL;
atts[nbatts + 1] = NULL;
} else {
if (attname != NULL)
xmlFree(attname);
if (attvalue != NULL)
xmlFree(attvalue);
}
failed:
GROW
if ((RAW == '>') || (((RAW == '/') && (NXT(1) == '>'))))
break;
if (!IS_BLANK(RAW)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"attributes construct error\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
if ((cons == ctxt->input->consumed) && (q == CUR_PTR) &&
(attname == NULL) && (attvalue == NULL)) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseStartTag: problem parsing attributes\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
break;
}
GROW;
}
/*
* SAX: Start of Element !
*/
if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->startElement(ctxt->userData, name, atts);
if (atts != NULL) {
for (i = 0;i < nbatts;i++)
if (atts[i] != NULL)
xmlFree((xmlChar *) atts[i]);
xmlFree((void *) atts);
}
return(name);
}
/**
* xmlParseEndTagInternal:
* @ctxt: an XML parser context
*
* parse an end of tag
*
* [42] ETag ::= '</' Name S? '>'
*
* With namespace
*
* [NS 9] ETag ::= '</' QName S? '>'
*/
static void
xmlParseEndTagInternal(xmlParserCtxtPtr ctxt, int line) {
xmlChar *name;
xmlChar *oldname;
GROW;
if ((RAW != '<') || (NXT(1) != '/')) {
ctxt->errNo = XML_ERR_LTSLASH_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "xmlParseEndTag: '</' not found\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return;
}
SKIP(2);
name = xmlParseNameAndCompare(ctxt,ctxt->name);
/*
* We should definitely be at the ending "S? '>'" part
*/
GROW;
SKIP_BLANKS;
if ((!IS_CHAR((unsigned int) RAW)) || (RAW != '>')) {
ctxt->errNo = XML_ERR_GT_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "End tag : expected '>'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT1;
/*
* [ WFC: Element Type Match ]
* The Name in an element's end-tag must match the element type in the
* start-tag.
*
*/
if (name != (xmlChar*)1) {
ctxt->errNo = XML_ERR_TAG_NAME_MISMATCH;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) {
if (name != NULL) {
ctxt->sax->error(ctxt->userData,
"Opening and ending tag mismatch: %s line %d and %s\n",
ctxt->name, line, name);
} else {
ctxt->sax->error(ctxt->userData,
"Ending tag error for: %s line %d\n", ctxt->name, line);
}
}
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
if (name != NULL)
xmlFree(name);
}
/*
* SAX: End of Tag
*/
if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->endElement(ctxt->userData, ctxt->name);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
return;
}
/**
* xmlParseEndTag:
* @ctxt: an XML parser context
*
* parse an end of tag
*
* [42] ETag ::= '</' Name S? '>'
*
* With namespace
*
* [NS 9] ETag ::= '</' QName S? '>'
*/
void
xmlParseEndTag(xmlParserCtxtPtr ctxt) {
xmlParseEndTagInternal(ctxt, 0);
}
/**
* 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) {
xmlChar *buf = NULL;
int len = 0;
int size = XML_PARSER_BUFFER_SIZE;
int r, rl;
int s, sl;
int cur, l;
int count = 0;
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;
r = CUR_CHAR(rl);
if (!IS_CHAR(r)) {
ctxt->errNo = XML_ERR_CDATA_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"CData section not finished\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_CONTENT;
return;
}
NEXTL(rl);
s = CUR_CHAR(sl);
if (!IS_CHAR(s)) {
ctxt->errNo = XML_ERR_CDATA_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"CData section not finished\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_CONTENT;
return;
}
NEXTL(sl);
cur = CUR_CHAR(l);
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return;
}
while (IS_CHAR(cur) &&
((r != ']') || (s != ']') || (cur != '>'))) {
if (len + 5 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
return;
}
}
COPY_BUF(rl,buf,len,r);
r = s;
rl = sl;
s = cur;
sl = l;
count++;
if (count > 50) {
GROW;
count = 0;
}
NEXTL(l);
cur = CUR_CHAR(l);
}
buf[len] = 0;
ctxt->instate = XML_PARSER_CONTENT;
if (cur != '>') {
ctxt->errNo = XML_ERR_CDATA_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"CData section not finished\n%.50s\n", buf);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
xmlFree(buf);
return;
}
NEXTL(l);
/*
* OK the buffer is to be consumed as cdata.
*/
if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
if (ctxt->sax->cdataBlock != NULL)
ctxt->sax->cdataBlock(ctxt->userData, buf, len);
else if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData, buf, len);
}
xmlFree(buf);
}
/**
* xmlParseContent:
* @ctxt: an XML parser context
*
* Parse a content:
*
* [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
*/
void
xmlParseContent(xmlParserCtxtPtr ctxt) {
GROW;
while ((RAW != 0) &&
((RAW != '<') || (NXT(1) != '/'))) {
const xmlChar *test = CUR_PTR;
unsigned int cons = ctxt->input->consumed;
const xmlChar *cur = ctxt->input->cur;
/*
* First case : a Processing Instruction.
*/
if ((*cur == '<') && (cur[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 ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
SHRINK;
if ((cons == ctxt->input->consumed) && (test == CUR_PTR)) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"detected an error in element content\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
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) {
xmlChar *name;
xmlChar *oldname;
xmlParserNodeInfo node_info;
int line;
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;
}
if (ctxt->spaceNr == 0)
spacePush(ctxt, -1);
else
spacePush(ctxt, *ctxt->space);
line = ctxt->input->line;
name = xmlParseStartTag(ctxt);
if (name == NULL) {
spacePop(ctxt);
return;
}
namePush(ctxt, name);
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->children))
ctxt->valid &= xmlValidateRoot(&ctxt->vctxt, ctxt->myDoc);
/*
* Check for an Empty Element.
*/
if ((RAW == '/') && (NXT(1) == '>')) {
SKIP(2);
if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->endElement(ctxt->userData, name);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
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;
}
if (RAW == '>') {
NEXT1;
} else {
ctxt->errNo = XML_ERR_GT_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Couldn't find end of Start Tag %s line %d\n",
name, line);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
/*
* end of parsing of this node.
*/
nodePop(ctxt);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
/*
* 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((unsigned int) RAW)) {
ctxt->errNo = XML_ERR_TAG_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Premature end of data in tag %s line %d\n", name, line);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
/*
* end of parsing of this node.
*/
nodePop(ctxt);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
return;
}
/*
* parse the end of tag: '</' should be here.
*/
xmlParseEndTagInternal(ctxt, line);
/*
* 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
*/
xmlChar *
xmlParseVersionNum(xmlParserCtxtPtr ctxt) {
xmlChar *buf = NULL;
int len = 0;
int size = 10;
xmlChar cur;
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return(NULL);
}
cur = CUR;
while (((cur >= 'a') && (cur <= 'z')) ||
((cur >= 'A') && (cur <= 'Z')) ||
((cur >= '0') && (cur <= '9')) ||
(cur == '_') || (cur == '.') ||
(cur == ':') || (cur == '-')) {
if (len + 1 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
return(NULL);
}
}
buf[len++] = cur;
NEXT;
cur=CUR;
}
buf[len] = 0;
return(buf);
}
/**
* 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"
*/
xmlChar *
xmlParseVersionInfo(xmlParserCtxtPtr ctxt) {
xmlChar *version = NULL;
const xmlChar *q;
if ((RAW == 'v') && (NXT(1) == 'e') &&
(NXT(2) == 'r') && (NXT(3) == 's') &&
(NXT(4) == 'i') && (NXT(5) == 'o') &&
(NXT(6) == 'n')) {
SKIP(7);
SKIP_BLANKS;
if (RAW != '=') {
ctxt->errNo = XML_ERR_EQUAL_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseVersionInfo : expected '='\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
NEXT;
SKIP_BLANKS;
if (RAW == '"') {
NEXT;
q = CUR_PTR;
version = xmlParseVersionNum(ctxt);
if (RAW != '"') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else if (RAW == '\''){
NEXT;
q = CUR_PTR;
version = xmlParseVersionNum(ctxt);
if (RAW != '\'') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else {
ctxt->errNo = XML_ERR_STRING_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseVersionInfo : expected ' or \"\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
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
*/
xmlChar *
xmlParseEncName(xmlParserCtxtPtr ctxt) {
xmlChar *buf = NULL;
int len = 0;
int size = 10;
xmlChar cur;
cur = CUR;
if (((cur >= 'a') && (cur <= 'z')) ||
((cur >= 'A') && (cur <= 'Z'))) {
buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc of %d byte failed\n", size);
return(NULL);
}
buf[len++] = cur;
NEXT;
cur = CUR;
while (((cur >= 'a') && (cur <= 'z')) ||
((cur >= 'A') && (cur <= 'Z')) ||
((cur >= '0') && (cur <= '9')) ||
(cur == '.') || (cur == '_') ||
(cur == '-')) {
if (len + 1 >= size) {
size *= 2;
buf = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar));
if (buf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"realloc of %d byte failed\n", size);
return(NULL);
}
}
buf[len++] = cur;
NEXT;
cur = CUR;
if (cur == 0) {
SHRINK;
GROW;
cur = CUR;
}
}
buf[len] = 0;
} else {
ctxt->errNo = XML_ERR_ENCODING_NAME;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Invalid XML encoding name\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
return(buf);
}
/**
* xmlParseEncodingDecl:
* @ctxt: an XML parser context
*
* parse the XML encoding declaration
*
* [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' | "'" EncName "'")
*
* this setups the conversion filters.
*
* Returns the encoding value or NULL
*/
const xmlChar *
xmlParseEncodingDecl(xmlParserCtxtPtr ctxt) {
xmlChar *encoding = NULL;
const xmlChar *q;
SKIP_BLANKS;
if ((RAW == '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 (RAW != '=') {
ctxt->errNo = XML_ERR_EQUAL_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEncodingDecl : expected '='\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(NULL);
}
NEXT;
SKIP_BLANKS;
if (RAW == '"') {
NEXT;
q = CUR_PTR;
encoding = xmlParseEncName(ctxt);
if (RAW != '"') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else if (RAW == '\''){
NEXT;
q = CUR_PTR;
encoding = xmlParseEncName(ctxt);
if (RAW != '\'') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"String not closed\n%.50s\n", q);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else {
ctxt->errNo = XML_ERR_STRING_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"xmlParseEncodingDecl : expected ' or \"\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* UTF-16 encoding stwich has already taken place at this stage,
* more over the little-endian/big-endian selection is already done
*/
if ((encoding != NULL) &&
((!xmlStrcasecmp(encoding, BAD_CAST "UTF-16")) ||
(!xmlStrcasecmp(encoding, BAD_CAST "UTF16")))) {
if (ctxt->encoding != NULL)
xmlFree((xmlChar *) ctxt->encoding);
ctxt->encoding = encoding;
}
/*
* UTF-8 encoding is handled natively
*/
else if ((encoding != NULL) &&
((!xmlStrcasecmp(encoding, BAD_CAST "UTF-8")) ||
(!xmlStrcasecmp(encoding, BAD_CAST "UTF8")))) {
if (ctxt->encoding != NULL)
xmlFree((xmlChar *) ctxt->encoding);
ctxt->encoding = encoding;
}
else if (encoding != NULL) {
xmlCharEncodingHandlerPtr handler;
if (ctxt->input->encoding != NULL)
xmlFree((xmlChar *) ctxt->input->encoding);
ctxt->input->encoding = encoding;
handler = xmlFindCharEncodingHandler((const char *) encoding);
if (handler != NULL) {
xmlSwitchToEncoding(ctxt, handler);
} else {
ctxt->errNo = XML_ERR_UNSUPPORTED_ENCODING;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Unsupported encoding %s\n", encoding);
return(NULL);
}
}
}
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 ((RAW == '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 (RAW != '=') {
ctxt->errNo = XML_ERR_EQUAL_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML standalone declaration : expected '='\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
return(standalone);
}
NEXT;
SKIP_BLANKS;
if (RAW == '\''){
NEXT;
if ((RAW == 'n') && (NXT(1) == 'o')) {
standalone = 0;
SKIP(2);
} else if ((RAW == 'y') && (NXT(1) == 'e') &&
(NXT(2) == 's')) {
standalone = 1;
SKIP(3);
} else {
ctxt->errNo = XML_ERR_STANDALONE_VALUE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"standalone accepts only 'yes' or 'no'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (RAW != '\'') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else if (RAW == '"'){
NEXT;
if ((RAW == 'n') && (NXT(1) == 'o')) {
standalone = 0;
SKIP(2);
} else if ((RAW == 'y') && (NXT(1) == 'e') &&
(NXT(2) == 's')) {
standalone = 1;
SKIP(3);
} else {
ctxt->errNo = XML_ERR_STANDALONE_VALUE;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"standalone accepts only 'yes' or 'no'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (RAW != '"') {
ctxt->errNo = XML_ERR_STRING_NOT_CLOSED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "String not closed\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else
NEXT;
} else {
ctxt->errNo = XML_ERR_STRING_NOT_STARTED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Standalone value not found\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
}
return(standalone);
}
/**
* xmlParseXMLDecl:
* @ctxt: an XML parser context
*
* parse an XML declaration header
*
* [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
*/
void
xmlParseXMLDecl(xmlParserCtxtPtr ctxt) {
xmlChar *version;
/*
* We know that '<?xml' is here.
*/
SKIP(5);
if (!IS_BLANK(RAW)) {
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed after '<?xml'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
/*
* We must have the VersionInfo here.
*/
version = xmlParseVersionInfo(ctxt);
if (version == NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Malformed declaration expecting version\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else {
if (!xmlStrEqual(version, (const xmlChar *) XML_DEFAULT_VERSION)) {
/*
* TODO: Blueberry should be detected here
*/
if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
ctxt->sax->warning(ctxt->userData, "Unsupported version '%s'\n",
version);
}
if (ctxt->version != NULL)
xmlFree((void *) ctxt->version);
ctxt->version = version;
}
/*
* We may have the encoding declaration
*/
if (!IS_BLANK(RAW)) {
if ((RAW == '?') && (NXT(1) == '>')) {
SKIP(2);
return;
}
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed here\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
xmlParseEncodingDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
return;
}
/*
* We may have the standalone status.
*/
if ((ctxt->input->encoding != NULL) && (!IS_BLANK(RAW))) {
if ((RAW == '?') && (NXT(1) == '>')) {
SKIP(2);
return;
}
ctxt->errNo = XML_ERR_SPACE_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Blank needed here\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
SKIP_BLANKS;
ctxt->input->standalone = xmlParseSDDecl(ctxt);
SKIP_BLANKS;
if ((RAW == '?') && (NXT(1) == '>')) {
SKIP(2);
} else if (RAW == '>') {
/* Deprecated old WD ... */
ctxt->errNo = XML_ERR_XMLDECL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"XML declaration must end-up with '?>'\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
NEXT;
} else {
ctxt->errNo = XML_ERR_XMLDECL_NOT_FINISHED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"parsing XML declaration: '?>' expected\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
MOVETO_ENDTAG(CUR_PTR);
NEXT;
}
}
/**
* xmlParseMisc:
* @ctxt: an XML parser context
*
* parse an XML Misc* optional field.
*
* [27] Misc ::= Comment | PI | S
*/
void
xmlParseMisc(xmlParserCtxtPtr ctxt) {
while (((RAW == '<') && (NXT(1) == '?')) ||
((RAW == '<') && (NXT(1) == '!') &&
(NXT(2) == '-') && (NXT(3) == '-')) ||
IS_BLANK(CUR)) {
if ((RAW == '<') && (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) {
xmlChar start[4];
xmlCharEncoding enc;
xmlInitParser();
GROW;
/*
* SAX: beginning of the document processing.
*/
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator);
if (ctxt->encoding == (const xmlChar *)XML_CHAR_ENCODING_NONE) {
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
}
if (CUR == 0) {
ctxt->errNo = XML_ERR_DOCUMENT_EMPTY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Document is empty\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* Check for the XMLDecl in the Prolog.
*/
GROW;
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
/*
* Note that we will switch encoding on the fly.
*/
xmlParseXMLDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
return(-1);
}
ctxt->standalone = ctxt->input->standalone;
SKIP_BLANKS;
} else {
ctxt->version = xmlCharStrdup(XML_DEFAULT_VERSION);
}
if ((ctxt->sax) && (ctxt->sax->startDocument) && (!ctxt->disableSAX))
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 ((RAW == '<') && (NXT(1) == '!') &&
(NXT(2) == 'D') && (NXT(3) == 'O') &&
(NXT(4) == 'C') && (NXT(5) == 'T') &&
(NXT(6) == 'Y') && (NXT(7) == 'P') &&
(NXT(8) == 'E')) {
ctxt->inSubset = 1;
xmlParseDocTypeDecl(ctxt);
if (RAW == '[') {
ctxt->instate = XML_PARSER_DTD;
xmlParseInternalSubset(ctxt);
}
/*
* Create and update the external subset.
*/
ctxt->inSubset = 2;
if ((ctxt->sax != NULL) && (ctxt->sax->externalSubset != NULL) &&
(!ctxt->disableSAX))
ctxt->sax->externalSubset(ctxt->userData, ctxt->intSubName,
ctxt->extSubSystem, ctxt->extSubURI);
ctxt->inSubset = 0;
ctxt->instate = XML_PARSER_PROLOG;
xmlParseMisc(ctxt);
}
/*
* Time to start parsing the tree itself
*/
GROW;
if (RAW != '<') {
ctxt->errNo = XML_ERR_DOCUMENT_EMPTY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Start tag expected, '<' not found\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
} else {
ctxt->instate = XML_PARSER_CONTENT;
xmlParseElement(ctxt);
ctxt->instate = XML_PARSER_EPILOG;
/*
* The Misc part at the end
*/
xmlParseMisc(ctxt);
if (RAW != 0) {
ctxt->errNo = XML_ERR_DOCUMENT_END;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
ctxt->instate = XML_PARSER_EOF;
}
/*
* SAX: end of the document processing.
*/
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
/*
* Remove locally kept entity definitions if the tree was not built
*/
if ((ctxt->myDoc != NULL) &&
(xmlStrEqual(ctxt->myDoc->version, SAX_COMPAT_MODE))) {
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (! ctxt->wellFormed) {
ctxt->valid = 0;
return(-1);
}
return(0);
}
/**
* xmlParseExtParsedEnt:
* @ctxt: an XML parser context
*
* parse a general parsed entity
* An external general parsed entity is well-formed if it matches the
* production labeled extParsedEnt.
*
* [78] extParsedEnt ::= TextDecl? content
*
* Returns 0, -1 in case of error. the parser context is augmented
* as a result of the parsing.
*/
int
xmlParseExtParsedEnt(xmlParserCtxtPtr ctxt) {
xmlChar start[4];
xmlCharEncoding enc;
xmlDefaultSAXHandlerInit();
GROW;
/*
* SAX: beginning of the document processing.
*/
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator);
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
if (CUR == 0) {
ctxt->errNo = XML_ERR_DOCUMENT_EMPTY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Document is empty\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* Check for the XMLDecl in the Prolog.
*/
GROW;
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
/*
* Note that we will switch encoding on the fly.
*/
xmlParseXMLDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right here
*/
return(-1);
}
SKIP_BLANKS;
} else {
ctxt->version = xmlCharStrdup(XML_DEFAULT_VERSION);
}
if ((ctxt->sax) && (ctxt->sax->startDocument) && (!ctxt->disableSAX))
ctxt->sax->startDocument(ctxt->userData);
/*
* Doing validity checking on chunk doesn't make sense
*/
ctxt->instate = XML_PARSER_CONTENT;
ctxt->validate = 0;
ctxt->loadsubset = 0;
ctxt->depth = 0;
xmlParseContent(ctxt);
if ((RAW == '<') && (NXT(1) == '/')) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != 0) {
ctxt->errNo = XML_ERR_EXTRA_CONTENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"extra content at the end of well balanced chunk\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
/*
* 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);
}
/************************************************************************
* *
* Progressive parsing interfaces *
* *
************************************************************************/
/**
* xmlParseLookupSequence:
* @ctxt: an XML parser context
* @first: the first char to lookup
* @next: the next char to lookup or zero
* @third: the next char to lookup or zero
*
* Try to find if a sequence (first, next, third) or just (first next) or
* (first) is available in the input stream.
* This function has a side effect of (possibly) incrementing ctxt->checkIndex
* to avoid rescanning sequences of bytes, it DOES change the state of the
* parser, do not use liberally.
*
* Returns the index to the current parsing point if the full sequence
* is available, -1 otherwise.
*/
static int
xmlParseLookupSequence(xmlParserCtxtPtr ctxt, xmlChar first,
xmlChar next, xmlChar third) {
int base, len;
xmlParserInputPtr in;
const xmlChar *buf;
in = ctxt->input;
if (in == NULL) return(-1);
base = in->cur - in->base;
if (base < 0) return(-1);
if (ctxt->checkIndex > base)
base = ctxt->checkIndex;
if (in->buf == NULL) {
buf = in->base;
len = in->length;
} else {
buf = in->buf->buffer->content;
len = in->buf->buffer->use;
}
/* take into account the sequence length */
if (third) len -= 2;
else if (next) len --;
for (;base < len;base++) {
if (buf[base] == first) {
if (third != 0) {
if ((buf[base + 1] != next) ||
(buf[base + 2] != third)) continue;
} else if (next != 0) {
if (buf[base + 1] != next) continue;
}
ctxt->checkIndex = 0;
#ifdef DEBUG_PUSH
if (next == 0)
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c' found at %d\n",
first, base);
else if (third == 0)
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c%c' found at %d\n",
first, next, base);
else
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c%c%c' found at %d\n",
first, next, third, base);
#endif
return(base - (in->cur - in->base));
}
}
ctxt->checkIndex = base;
#ifdef DEBUG_PUSH
if (next == 0)
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c' failed\n", first);
else if (third == 0)
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c%c' failed\n", first, next);
else
xmlGenericError(xmlGenericErrorContext,
"PP: lookup '%c%c%c' failed\n", first, next, third);
#endif
return(-1);
}
/**
* xmlParseGetLasts:
* @ctxt: an XML parser context
* @lastlt: pointer to store the last '<' from the input
* @lastgt: pointer to store the last '>' from the input
*
* Lookup the last < and > in the current chunk
*/
static void
xmlParseGetLasts(xmlParserCtxtPtr ctxt, const xmlChar **lastlt,
const xmlChar **lastgt) {
const xmlChar *tmp;
if ((ctxt == NULL) || (lastlt == NULL) || (lastgt == NULL)) {
xmlGenericError(xmlGenericErrorContext,
"Internal error: xmlParseGetLasts\n");
return;
}
if ((ctxt->progressive == 1) && (ctxt->inputNr == 1)) {
tmp = ctxt->input->end;
tmp--;
while ((tmp >= ctxt->input->base) && (*tmp != '<') &&
(*tmp != '>')) tmp--;
if (tmp < ctxt->input->base) {
*lastlt = NULL;
*lastgt = NULL;
} else if (*tmp == '<') {
*lastlt = tmp;
tmp--;
while ((tmp >= ctxt->input->base) && (*tmp != '>')) tmp--;
if (tmp < ctxt->input->base)
*lastgt = NULL;
else
*lastgt = tmp;
} else {
*lastgt = tmp;
tmp--;
while ((tmp >= ctxt->input->base) && (*tmp != '<')) tmp--;
if (tmp < ctxt->input->base)
*lastlt = NULL;
else
*lastlt = tmp;
}
} else {
*lastlt = NULL;
*lastgt = NULL;
}
}
/**
* xmlParseTryOrFinish:
* @ctxt: an XML parser context
* @terminate: last chunk indicator
*
* Try to progress on parsing
*
* Returns zero if no parsing was possible
*/
static int
xmlParseTryOrFinish(xmlParserCtxtPtr ctxt, int terminate) {
int ret = 0;
int avail;
xmlChar cur, next;
const xmlChar *lastlt, *lastgt;
#ifdef DEBUG_PUSH
switch (ctxt->instate) {
case XML_PARSER_EOF:
xmlGenericError(xmlGenericErrorContext,
"PP: try EOF\n"); break;
case XML_PARSER_START:
xmlGenericError(xmlGenericErrorContext,
"PP: try START\n"); break;
case XML_PARSER_MISC:
xmlGenericError(xmlGenericErrorContext,
"PP: try MISC\n");break;
case XML_PARSER_COMMENT:
xmlGenericError(xmlGenericErrorContext,
"PP: try COMMENT\n");break;
case XML_PARSER_PROLOG:
xmlGenericError(xmlGenericErrorContext,
"PP: try PROLOG\n");break;
case XML_PARSER_START_TAG:
xmlGenericError(xmlGenericErrorContext,
"PP: try START_TAG\n");break;
case XML_PARSER_CONTENT:
xmlGenericError(xmlGenericErrorContext,
"PP: try CONTENT\n");break;
case XML_PARSER_CDATA_SECTION:
xmlGenericError(xmlGenericErrorContext,
"PP: try CDATA_SECTION\n");break;
case XML_PARSER_END_TAG:
xmlGenericError(xmlGenericErrorContext,
"PP: try END_TAG\n");break;
case XML_PARSER_ENTITY_DECL:
xmlGenericError(xmlGenericErrorContext,
"PP: try ENTITY_DECL\n");break;
case XML_PARSER_ENTITY_VALUE:
xmlGenericError(xmlGenericErrorContext,
"PP: try ENTITY_VALUE\n");break;
case XML_PARSER_ATTRIBUTE_VALUE:
xmlGenericError(xmlGenericErrorContext,
"PP: try ATTRIBUTE_VALUE\n");break;
case XML_PARSER_DTD:
xmlGenericError(xmlGenericErrorContext,
"PP: try DTD\n");break;
case XML_PARSER_EPILOG:
xmlGenericError(xmlGenericErrorContext,
"PP: try EPILOG\n");break;
case XML_PARSER_PI:
xmlGenericError(xmlGenericErrorContext,
"PP: try PI\n");break;
case XML_PARSER_IGNORE:
xmlGenericError(xmlGenericErrorContext,
"PP: try IGNORE\n");break;
}
#endif
if (ctxt->input->cur - ctxt->input->base > 4096) {
xmlSHRINK(ctxt);
ctxt->checkIndex = 0;
}
xmlParseGetLasts(ctxt, &lastlt, &lastgt);
while (1) {
if ((ctxt->errNo != XML_ERR_OK) && (ctxt->disableSAX == 1))
return(0);
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if (ctxt->input ==NULL) break;
if (ctxt->input->buf == NULL)
avail = ctxt->input->length -
(ctxt->input->cur - ctxt->input->base);
else {
/*
* If we are operating on converted input, try to flush
* remainng chars to avoid them stalling in the non-converted
* buffer.
*/
if ((ctxt->input->buf->raw != NULL) &&
(ctxt->input->buf->raw->use > 0)) {
int base = ctxt->input->base -
ctxt->input->buf->buffer->content;
int current = ctxt->input->cur - ctxt->input->base;
xmlParserInputBufferPush(ctxt->input->buf, 0, "");
ctxt->input->base = ctxt->input->buf->buffer->content + base;
ctxt->input->cur = ctxt->input->base + current;
ctxt->input->end =
&ctxt->input->buf->buffer->content[
ctxt->input->buf->buffer->use];
}
avail = ctxt->input->buf->buffer->use -
(ctxt->input->cur - ctxt->input->base);
}
if (avail < 1)
goto done;
switch (ctxt->instate) {
case XML_PARSER_EOF:
/*
* Document parsing is done !
*/
goto done;
case XML_PARSER_START:
if (ctxt->charset == XML_CHAR_ENCODING_NONE) {
xmlChar start[4];
xmlCharEncoding enc;
/*
* Very first chars read from the document flow.
*/
if (avail < 4)
goto done;
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
break;
}
cur = ctxt->input->cur[0];
next = ctxt->input->cur[1];
if (cur == 0) {
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData,
&xmlDefaultSAXLocator);
ctxt->errNo = XML_ERR_DOCUMENT_EMPTY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData, "Document is empty\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EOF\n");
#endif
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
goto done;
}
if ((cur == '<') && (next == '?')) {
/* PI or XML decl */
if (avail < 5) return(ret);
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '?', '>', 0) < 0))
return(ret);
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData,
&xmlDefaultSAXLocator);
if ((ctxt->input->cur[2] == 'x') &&
(ctxt->input->cur[3] == 'm') &&
(ctxt->input->cur[4] == 'l') &&
(IS_BLANK(ctxt->input->cur[5]))) {
ret += 5;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing XML Decl\n");
#endif
xmlParseXMLDecl(ctxt);
if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) {
/*
* The XML REC instructs us to stop parsing right
* here
*/
ctxt->instate = XML_PARSER_EOF;
return(0);
}
ctxt->standalone = ctxt->input->standalone;
if ((ctxt->encoding == NULL) &&
(ctxt->input->encoding != NULL))
ctxt->encoding = xmlStrdup(ctxt->input->encoding);
if ((ctxt->sax) && (ctxt->sax->startDocument) &&
(!ctxt->disableSAX))
ctxt->sax->startDocument(ctxt->userData);
ctxt->instate = XML_PARSER_MISC;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering MISC\n");
#endif
} else {
ctxt->version = xmlCharStrdup(XML_DEFAULT_VERSION);
if ((ctxt->sax) && (ctxt->sax->startDocument) &&
(!ctxt->disableSAX))
ctxt->sax->startDocument(ctxt->userData);
ctxt->instate = XML_PARSER_MISC;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering MISC\n");
#endif
}
} else {
if ((ctxt->sax) && (ctxt->sax->setDocumentLocator))
ctxt->sax->setDocumentLocator(ctxt->userData,
&xmlDefaultSAXLocator);
ctxt->version = xmlCharStrdup(XML_DEFAULT_VERSION);
if ((ctxt->sax) && (ctxt->sax->startDocument) &&
(!ctxt->disableSAX))
ctxt->sax->startDocument(ctxt->userData);
ctxt->instate = XML_PARSER_MISC;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering MISC\n");
#endif
}
break;
case XML_PARSER_START_TAG: {
xmlChar *name, *oldname;
if ((avail < 2) && (ctxt->inputNr == 1))
goto done;
cur = ctxt->input->cur[0];
if (cur != '<') {
ctxt->errNo = XML_ERR_DOCUMENT_EMPTY;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Start tag expect, '<' not found\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EOF\n");
#endif
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
goto done;
}
if (!terminate) {
if (ctxt->progressive) {
if ((lastgt == NULL) || (ctxt->input->cur > lastgt))
goto done;
} else if (xmlParseLookupSequence(ctxt, '>', 0, 0) < 0) {
goto done;
}
}
if (ctxt->spaceNr == 0)
spacePush(ctxt, -1);
else
spacePush(ctxt, *ctxt->space);
name = xmlParseStartTag(ctxt);
if (name == NULL) {
spacePop(ctxt);
ctxt->instate = XML_PARSER_EOF;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EOF\n");
#endif
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
goto done;
}
namePush(ctxt, name);
/*
* [ 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->children))
ctxt->valid &= xmlValidateRoot(&ctxt->vctxt, ctxt->myDoc);
/*
* Check for an Empty Element.
*/
if ((RAW == '/') && (NXT(1) == '>')) {
SKIP(2);
if ((ctxt->sax != NULL) &&
(ctxt->sax->endElement != NULL) && (!ctxt->disableSAX))
ctxt->sax->endElement(ctxt->userData, name);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
if (ctxt->name == NULL) {
ctxt->instate = XML_PARSER_EPILOG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EPILOG\n");
#endif
} else {
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
}
break;
}
if (RAW == '>') {
NEXT;
} else {
ctxt->errNo = XML_ERR_GT_REQUIRED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Couldn't find end of Start Tag %s\n",
name);
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
/*
* end of parsing of this node.
*/
nodePop(ctxt);
oldname = namePop(ctxt);
spacePop(ctxt);
if (oldname != NULL) {
#ifdef DEBUG_STACK
xmlGenericError(xmlGenericErrorContext,"Close: popped %s\n", oldname);
#endif
xmlFree(oldname);
}
}
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
break;
}
case XML_PARSER_CONTENT: {
const xmlChar *test;
unsigned int cons;
if ((avail < 2) && (ctxt->inputNr == 1))
goto done;
cur = ctxt->input->cur[0];
next = ctxt->input->cur[1];
test = CUR_PTR;
cons = ctxt->input->consumed;
if ((cur == '<') && (next == '/')) {
ctxt->instate = XML_PARSER_END_TAG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering END_TAG\n");
#endif
break;
} else if ((cur == '<') && (next == '?')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '?', '>', 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing PI\n");
#endif
xmlParsePI(ctxt);
} else if ((cur == '<') && (next != '!')) {
ctxt->instate = XML_PARSER_START_TAG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
break;
} else if ((cur == '<') && (next == '!') &&
(ctxt->input->cur[2] == '-') &&
(ctxt->input->cur[3] == '-')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '-', '-', '>') < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing Comment\n");
#endif
xmlParseComment(ctxt);
ctxt->instate = XML_PARSER_CONTENT;
} else if ((cur == '<') && (ctxt->input->cur[1] == '!') &&
(ctxt->input->cur[2] == '[') &&
(ctxt->input->cur[3] == 'C') &&
(ctxt->input->cur[4] == 'D') &&
(ctxt->input->cur[5] == 'A') &&
(ctxt->input->cur[6] == 'T') &&
(ctxt->input->cur[7] == 'A') &&
(ctxt->input->cur[8] == '[')) {
SKIP(9);
ctxt->instate = XML_PARSER_CDATA_SECTION;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CDATA_SECTION\n");
#endif
break;
} else if ((cur == '<') && (next == '!') &&
(avail < 9)) {
goto done;
} else if (cur == '&') {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, ';', 0, 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing Reference\n");
#endif
xmlParseReference(ctxt);
} else {
/* TODO Avoid the extra copy, handle directly !!! */
/*
* Goal of the following test is:
* - minimize calls to the SAX 'character' callback
* when they are mergeable
* - handle an problem for isBlank when we only parse
* a sequence of blank chars and the next one is
* not available to check against '<' presence.
* - tries to homogenize the differences in SAX
* callbacks between the push and pull versions
* of the parser.
*/
if ((ctxt->inputNr == 1) &&
(avail < XML_PARSER_BIG_BUFFER_SIZE)) {
if (!terminate) {
if (ctxt->progressive) {
if ((lastlt == NULL) ||
(ctxt->input->cur > lastlt))
goto done;
} else if (xmlParseLookupSequence(ctxt,
'<', 0, 0) < 0) {
goto done;
}
}
}
ctxt->checkIndex = 0;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing char data\n");
#endif
xmlParseCharData(ctxt, 0);
}
/*
* Pop-up of finished entities.
*/
while ((RAW == 0) && (ctxt->inputNr > 1))
xmlPopInput(ctxt);
if ((cons == ctxt->input->consumed) && (test == CUR_PTR)) {
ctxt->errNo = XML_ERR_INTERNAL_ERROR;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"detected an error in element content\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
break;
}
break;
}
case XML_PARSER_END_TAG:
if (avail < 2)
goto done;
if (!terminate) {
if (ctxt->progressive) {
if ((lastgt == NULL) || (ctxt->input->cur > lastgt))
goto done;
} else if (xmlParseLookupSequence(ctxt, '>', 0, 0) < 0) {
goto done;
}
}
xmlParseEndTag(ctxt);
if (ctxt->name == NULL) {
ctxt->instate = XML_PARSER_EPILOG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EPILOG\n");
#endif
} else {
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
}
break;
case XML_PARSER_CDATA_SECTION: {
/*
* The Push mode need to have the SAX callback for
* cdataBlock merge back contiguous callbacks.
*/
int base;
base = xmlParseLookupSequence(ctxt, ']', ']', '>');
if (base < 0) {
if (avail >= XML_PARSER_BIG_BUFFER_SIZE + 2) {
if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) {
if (ctxt->sax->cdataBlock != NULL)
ctxt->sax->cdataBlock(ctxt->userData,
ctxt->input->cur,
XML_PARSER_BIG_BUFFER_SIZE);
else if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData,
ctxt->input->cur,
XML_PARSER_BIG_BUFFER_SIZE);
}
SKIP(XML_PARSER_BIG_BUFFER_SIZE);
ctxt->checkIndex = 0;
}
goto done;
} else {
if ((ctxt->sax != NULL) && (base > 0) &&
(!ctxt->disableSAX)) {
if (ctxt->sax->cdataBlock != NULL)
ctxt->sax->cdataBlock(ctxt->userData,
ctxt->input->cur, base);
else if (ctxt->sax->characters != NULL)
ctxt->sax->characters(ctxt->userData,
ctxt->input->cur, base);
}
SKIP(base + 3);
ctxt->checkIndex = 0;
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
}
break;
}
case XML_PARSER_MISC:
SKIP_BLANKS;
if (ctxt->input->buf == NULL)
avail = ctxt->input->length -
(ctxt->input->cur - ctxt->input->base);
else
avail = ctxt->input->buf->buffer->use -
(ctxt->input->cur - ctxt->input->base);
if (avail < 2)
goto done;
cur = ctxt->input->cur[0];
next = ctxt->input->cur[1];
if ((cur == '<') && (next == '?')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '?', '>', 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing PI\n");
#endif
xmlParsePI(ctxt);
} else if ((cur == '<') && (next == '!') &&
(ctxt->input->cur[2] == '-') &&
(ctxt->input->cur[3] == '-')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '-', '-', '>') < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing Comment\n");
#endif
xmlParseComment(ctxt);
ctxt->instate = XML_PARSER_MISC;
} else if ((cur == '<') && (next == '!') &&
(ctxt->input->cur[2] == 'D') &&
(ctxt->input->cur[3] == 'O') &&
(ctxt->input->cur[4] == 'C') &&
(ctxt->input->cur[5] == 'T') &&
(ctxt->input->cur[6] == 'Y') &&
(ctxt->input->cur[7] == 'P') &&
(ctxt->input->cur[8] == 'E')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '>', 0, 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing internal subset\n");
#endif
ctxt->inSubset = 1;
xmlParseDocTypeDecl(ctxt);
if (RAW == '[') {
ctxt->instate = XML_PARSER_DTD;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering DTD\n");
#endif
} else {
/*
* Create and update the external subset.
*/
ctxt->inSubset = 2;
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->externalSubset != NULL))
ctxt->sax->externalSubset(ctxt->userData,
ctxt->intSubName, ctxt->extSubSystem,
ctxt->extSubURI);
ctxt->inSubset = 0;
ctxt->instate = XML_PARSER_PROLOG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering PROLOG\n");
#endif
}
} else if ((cur == '<') && (next == '!') &&
(avail < 9)) {
goto done;
} else {
ctxt->instate = XML_PARSER_START_TAG;
ctxt->progressive = 1;
xmlParseGetLasts(ctxt, &lastlt, &lastgt);
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
}
break;
case XML_PARSER_PROLOG:
SKIP_BLANKS;
if (ctxt->input->buf == NULL)
avail = ctxt->input->length - (ctxt->input->cur - ctxt->input->base);
else
avail = ctxt->input->buf->buffer->use - (ctxt->input->cur - ctxt->input->base);
if (avail < 2)
goto done;
cur = ctxt->input->cur[0];
next = ctxt->input->cur[1];
if ((cur == '<') && (next == '?')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '?', '>', 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing PI\n");
#endif
xmlParsePI(ctxt);
} else if ((cur == '<') && (next == '!') &&
(ctxt->input->cur[2] == '-') && (ctxt->input->cur[3] == '-')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '-', '-', '>') < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing Comment\n");
#endif
xmlParseComment(ctxt);
ctxt->instate = XML_PARSER_PROLOG;
} else if ((cur == '<') && (next == '!') &&
(avail < 4)) {
goto done;
} else {
ctxt->instate = XML_PARSER_START_TAG;
ctxt->progressive = 1;
xmlParseGetLasts(ctxt, &lastlt, &lastgt);
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
}
break;
case XML_PARSER_EPILOG:
SKIP_BLANKS;
if (ctxt->input->buf == NULL)
avail = ctxt->input->length - (ctxt->input->cur - ctxt->input->base);
else
avail = ctxt->input->buf->buffer->use - (ctxt->input->cur - ctxt->input->base);
if (avail < 2)
goto done;
cur = ctxt->input->cur[0];
next = ctxt->input->cur[1];
if ((cur == '<') && (next == '?')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '?', '>', 0) < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing PI\n");
#endif
xmlParsePI(ctxt);
ctxt->instate = XML_PARSER_EPILOG;
} else if ((cur == '<') && (next == '!') &&
(ctxt->input->cur[2] == '-') && (ctxt->input->cur[3] == '-')) {
if ((!terminate) &&
(xmlParseLookupSequence(ctxt, '-', '-', '>') < 0))
goto done;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: Parsing Comment\n");
#endif
xmlParseComment(ctxt);
ctxt->instate = XML_PARSER_EPILOG;
} else if ((cur == '<') && (next == '!') &&
(avail < 4)) {
goto done;
} else {
ctxt->errNo = XML_ERR_DOCUMENT_END;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
ctxt->instate = XML_PARSER_EOF;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering EOF\n");
#endif
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
goto done;
}
break;
case XML_PARSER_DTD: {
/*
* Sorry but progressive parsing of the internal subset
* is not expected to be supported. We first check that
* the full content of the internal subset is available and
* the parsing is launched only at that point.
* Internal subset ends up with "']' S? '>'" in an unescaped
* section and not in a ']]>' sequence which are conditional
* sections (whoever argued to keep that crap in XML deserve
* a place in hell !).
*/
int base, i;
xmlChar *buf;
xmlChar quote = 0;
base = ctxt->input->cur - ctxt->input->base;
if (base < 0) return(0);
if (ctxt->checkIndex > base)
base = ctxt->checkIndex;
buf = ctxt->input->buf->buffer->content;
for (;(unsigned int) base < ctxt->input->buf->buffer->use;
base++) {
if (quote != 0) {
if (buf[base] == quote)
quote = 0;
continue;
}
if (buf[base] == '"') {
quote = '"';
continue;
}
if (buf[base] == '\'') {
quote = '\'';
continue;
}
if (buf[base] == ']') {
if ((unsigned int) base +1 >=
ctxt->input->buf->buffer->use)
break;
if (buf[base + 1] == ']') {
/* conditional crap, skip both ']' ! */
base++;
continue;
}
for (i = 0;
(unsigned int) base + i < ctxt->input->buf->buffer->use;
i++) {
if (buf[base + i] == '>')
goto found_end_int_subset;
}
break;
}
}
/*
* We didn't found the end of the Internal subset
*/
if (quote == 0)
ctxt->checkIndex = base;
#ifdef DEBUG_PUSH
if (next == 0)
xmlGenericError(xmlGenericErrorContext,
"PP: lookup of int subset end filed\n");
#endif
goto done;
found_end_int_subset:
xmlParseInternalSubset(ctxt);
ctxt->inSubset = 2;
if ((ctxt->sax != NULL) && (!ctxt->disableSAX) &&
(ctxt->sax->externalSubset != NULL))
ctxt->sax->externalSubset(ctxt->userData, ctxt->intSubName,
ctxt->extSubSystem, ctxt->extSubURI);
ctxt->inSubset = 0;
ctxt->instate = XML_PARSER_PROLOG;
ctxt->checkIndex = 0;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering PROLOG\n");
#endif
break;
}
case XML_PARSER_COMMENT:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == COMMENT\n");
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
break;
case XML_PARSER_IGNORE:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == IGNORE");
ctxt->instate = XML_PARSER_DTD;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering DTD\n");
#endif
break;
case XML_PARSER_PI:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == PI\n");
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering CONTENT\n");
#endif
break;
case XML_PARSER_ENTITY_DECL:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == ENTITY_DECL\n");
ctxt->instate = XML_PARSER_DTD;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering DTD\n");
#endif
break;
case XML_PARSER_ENTITY_VALUE:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == ENTITY_VALUE\n");
ctxt->instate = XML_PARSER_CONTENT;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering DTD\n");
#endif
break;
case XML_PARSER_ATTRIBUTE_VALUE:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == ATTRIBUTE_VALUE\n");
ctxt->instate = XML_PARSER_START_TAG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
break;
case XML_PARSER_SYSTEM_LITERAL:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == SYSTEM_LITERAL\n");
ctxt->instate = XML_PARSER_START_TAG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
break;
case XML_PARSER_PUBLIC_LITERAL:
xmlGenericError(xmlGenericErrorContext,
"PP: internal error, state == PUBLIC_LITERAL\n");
ctxt->instate = XML_PARSER_START_TAG;
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext,
"PP: entering START_TAG\n");
#endif
break;
}
}
done:
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext, "PP: done %d\n", ret);
#endif
return(ret);
}
/**
* xmlParseChunk:
* @ctxt: an XML parser context
* @chunk: an char array
* @size: the size in byte of the chunk
* @terminate: last chunk indicator
*
* Parse a Chunk of memory
*
* Returns zero if no error, the xmlParserErrors otherwise.
*/
int
xmlParseChunk(xmlParserCtxtPtr ctxt, const char *chunk, int size,
int terminate) {
if ((ctxt->errNo != XML_ERR_OK) && (ctxt->disableSAX == 1))
return(ctxt->errNo);
if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) &&
(ctxt->input->buf != NULL) && (ctxt->instate != XML_PARSER_EOF)) {
int base = ctxt->input->base - ctxt->input->buf->buffer->content;
int cur = ctxt->input->cur - ctxt->input->base;
xmlParserInputBufferPush(ctxt->input->buf, size, chunk);
ctxt->input->base = ctxt->input->buf->buffer->content + base;
ctxt->input->cur = ctxt->input->base + cur;
ctxt->input->end =
&ctxt->input->buf->buffer->content[ctxt->input->buf->buffer->use];
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext, "PP: pushed %d\n", size);
#endif
#if 0
if ((terminate) || (ctxt->input->buf->buffer->use > 80))
xmlParseTryOrFinish(ctxt, terminate);
#endif
} else if (ctxt->instate != XML_PARSER_EOF) {
if ((ctxt->input != NULL) && ctxt->input->buf != NULL) {
xmlParserInputBufferPtr in = ctxt->input->buf;
if ((in->encoder != NULL) && (in->buffer != NULL) &&
(in->raw != NULL)) {
int nbchars;
nbchars = xmlCharEncInFunc(in->encoder, in->buffer, in->raw);
if (nbchars < 0) {
xmlGenericError(xmlGenericErrorContext,
"xmlParseChunk: encoder error\n");
return(XML_ERR_INVALID_ENCODING);
}
}
}
}
xmlParseTryOrFinish(ctxt, terminate);
if ((ctxt->errNo != XML_ERR_OK) && (ctxt->disableSAX == 1))
return(ctxt->errNo);
if (terminate) {
/*
* Check for termination
*/
int avail = 0;
if (ctxt->input->buf == NULL)
avail = ctxt->input->length -
(ctxt->input->cur - ctxt->input->base);
else
avail = ctxt->input->buf->buffer->use -
(ctxt->input->cur - ctxt->input->base);
if ((ctxt->instate != XML_PARSER_EOF) &&
(ctxt->instate != XML_PARSER_EPILOG)) {
ctxt->errNo = XML_ERR_DOCUMENT_END;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if ((ctxt->instate == XML_PARSER_EPILOG) && (avail > 0)) {
ctxt->errNo = XML_ERR_DOCUMENT_END;
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;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (ctxt->instate != XML_PARSER_EOF) {
if ((ctxt->sax) && (ctxt->sax->endDocument != NULL))
ctxt->sax->endDocument(ctxt->userData);
}
ctxt->instate = XML_PARSER_EOF;
}
return((xmlParserErrors) ctxt->errNo);
}
/************************************************************************
* *
* I/O front end functions to the parser *
* *
************************************************************************/
/**
* xmlStopParser:
* @ctxt: an XML parser context
*
* Blocks further parser processing
*/
void
xmlStopParser(xmlParserCtxtPtr ctxt) {
ctxt->instate = XML_PARSER_EOF;
if (ctxt->input != NULL)
ctxt->input->cur = BAD_CAST"";
}
/**
* xmlCreatePushParserCtxt:
* @sax: a SAX handler
* @user_data: The user data returned on SAX callbacks
* @chunk: a pointer to an array of chars
* @size: number of chars in the array
* @filename: an optional file name or URI
*
* Create a parser context for using the XML parser in push mode.
* If @buffer and @size are non-NULL, the data is used to detect
* the encoding. The remaining characters will be parsed so they
* don't need to be fed in again through xmlParseChunk.
* To allow content encoding detection, @size should be >= 4
* The value of @filename is used for fetching external entities
* and error/warning reports.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreatePushParserCtxt(xmlSAXHandlerPtr sax, void *user_data,
const char *chunk, int size, const char *filename) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr inputStream;
xmlParserInputBufferPtr buf;
xmlCharEncoding enc = XML_CHAR_ENCODING_NONE;
/*
* plug some encoding conversion routines
*/
if ((chunk != NULL) && (size >= 4))
enc = xmlDetectCharEncoding((const xmlChar *) chunk, size);
buf = xmlAllocParserInputBuffer(enc);
if (buf == NULL) return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xml parser: out of memory\n");
xmlFreeParserInputBuffer(buf);
return(NULL);
}
if (sax != NULL) {
if (ctxt->sax != &xmlDefaultSAXHandler)
xmlFree(ctxt->sax);
ctxt->sax = (xmlSAXHandlerPtr) xmlMalloc(sizeof(xmlSAXHandler));
if (ctxt->sax == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xml parser: out of memory\n");
xmlFreeParserInputBuffer(buf);
xmlFreeParserCtxt(ctxt);
return(NULL);
}
memcpy(ctxt->sax, sax, sizeof(xmlSAXHandler));
if (user_data != NULL)
ctxt->userData = user_data;
}
if (filename == NULL) {
ctxt->directory = NULL;
} else {
ctxt->directory = xmlParserGetDirectory(filename);
}
inputStream = xmlNewInputStream(ctxt);
if (inputStream == NULL) {
xmlFreeParserCtxt(ctxt);
xmlFreeParserInputBuffer(buf);
return(NULL);
}
if (filename == NULL)
inputStream->filename = NULL;
else
inputStream->filename = (char *)
xmlCanonicPath((const xmlChar *) filename);
inputStream->buf = buf;
inputStream->base = inputStream->buf->buffer->content;
inputStream->cur = inputStream->buf->buffer->content;
inputStream->end =
&inputStream->buf->buffer->content[inputStream->buf->buffer->use];
inputPush(ctxt, inputStream);
if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) &&
(ctxt->input->buf != NULL)) {
int base = ctxt->input->base - ctxt->input->buf->buffer->content;
int cur = ctxt->input->cur - ctxt->input->base;
xmlParserInputBufferPush(ctxt->input->buf, size, chunk);
ctxt->input->base = ctxt->input->buf->buffer->content + base;
ctxt->input->cur = ctxt->input->base + cur;
ctxt->input->end =
&ctxt->input->buf->buffer->content[ctxt->input->buf->buffer->use];
#ifdef DEBUG_PUSH
xmlGenericError(xmlGenericErrorContext, "PP: pushed %d\n", size);
#endif
}
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
return(ctxt);
}
/**
* xmlCreateIOParserCtxt:
* @sax: a SAX handler
* @user_data: The user data returned on SAX callbacks
* @ioread: an I/O read function
* @ioclose: an I/O close function
* @ioctx: an I/O handler
* @enc: the charset encoding if known
*
* Create a parser context for using the XML parser with an existing
* I/O stream
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateIOParserCtxt(xmlSAXHandlerPtr sax, void *user_data,
xmlInputReadCallback ioread, xmlInputCloseCallback ioclose,
void *ioctx, xmlCharEncoding enc) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr inputStream;
xmlParserInputBufferPtr buf;
buf = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx, enc);
if (buf == NULL) return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
xmlFree(buf);
return(NULL);
}
if (sax != NULL) {
if (ctxt->sax != &xmlDefaultSAXHandler)
xmlFree(ctxt->sax);
ctxt->sax = (xmlSAXHandlerPtr) xmlMalloc(sizeof(xmlSAXHandler));
if (ctxt->sax == NULL) {
xmlFree(buf);
xmlFree(ctxt);
return(NULL);
}
memcpy(ctxt->sax, sax, sizeof(xmlSAXHandler));
if (user_data != NULL)
ctxt->userData = user_data;
}
inputStream = xmlNewIOInputStream(ctxt, buf, enc);
if (inputStream == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
inputPush(ctxt, inputStream);
return(ctxt);
}
/************************************************************************
* *
* Front ends when parsing a DTD *
* *
************************************************************************/
/**
* xmlIOParseDTD:
* @sax: the SAX handler block or NULL
* @input: an Input Buffer
* @enc: the charset encoding if known
*
* Load and parse a DTD
*
* Returns the resulting xmlDtdPtr or NULL in case of error.
* @input will be freed at parsing end.
*/
xmlDtdPtr
xmlIOParseDTD(xmlSAXHandlerPtr sax, xmlParserInputBufferPtr input,
xmlCharEncoding enc) {
xmlDtdPtr ret = NULL;
xmlParserCtxtPtr ctxt;
xmlParserInputPtr pinput = NULL;
xmlChar start[4];
if (input == NULL)
return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
/*
* Set-up the SAX context
*/
if (sax != NULL) {
if (ctxt->sax != NULL)
xmlFree(ctxt->sax);
ctxt->sax = sax;
ctxt->userData = NULL;
}
/*
* generate a parser input from the I/O handler
*/
pinput = xmlNewIOInputStream(ctxt, input, enc);
if (pinput == NULL) {
if (sax != NULL) ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(NULL);
}
/*
* plug some encoding conversion routines here.
*/
xmlPushInput(ctxt, pinput);
pinput->filename = NULL;
pinput->line = 1;
pinput->col = 1;
pinput->base = ctxt->input->cur;
pinput->cur = ctxt->input->cur;
pinput->free = NULL;
/*
* let's parse that entity knowing it's an external subset.
*/
ctxt->inSubset = 2;
ctxt->myDoc = xmlNewDoc(BAD_CAST "1.0");
ctxt->myDoc->extSubset = xmlNewDtd(ctxt->myDoc, BAD_CAST "none",
BAD_CAST "none", BAD_CAST "none");
if (enc == XML_CHAR_ENCODING_NONE) {
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
}
xmlParseExternalSubset(ctxt, BAD_CAST "none", BAD_CAST "none");
if (ctxt->myDoc != NULL) {
if (ctxt->wellFormed) {
ret = ctxt->myDoc->extSubset;
ctxt->myDoc->extSubset = NULL;
if (ret != NULL) {
xmlNodePtr tmp;
ret->doc = NULL;
tmp = ret->children;
while (tmp != NULL) {
tmp->doc = NULL;
tmp = tmp->next;
}
}
} else {
ret = NULL;
}
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL) ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* 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 xmlChar *ExternalID,
const xmlChar *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 (sax != NULL) {
if (ctxt->sax != NULL)
xmlFree(ctxt->sax);
ctxt->sax = sax;
ctxt->userData = ctxt;
}
/*
* Ask the Entity resolver to load the damn thing
*/
if ((ctxt->sax != NULL) && (ctxt->sax->resolveEntity != NULL))
input = ctxt->sax->resolveEntity(ctxt, 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, 4);
xmlSwitchEncoding(ctxt, enc);
if (input->filename == NULL)
input->filename = (char *) xmlCanonicPath(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.
*/
ctxt->inSubset = 2;
ctxt->myDoc = xmlNewDoc(BAD_CAST "1.0");
ctxt->myDoc->extSubset = xmlNewDtd(ctxt->myDoc, BAD_CAST "none",
ExternalID, SystemID);
xmlParseExternalSubset(ctxt, ExternalID, SystemID);
if (ctxt->myDoc != NULL) {
if (ctxt->wellFormed) {
ret = ctxt->myDoc->extSubset;
ctxt->myDoc->extSubset = NULL;
if (ret != NULL) {
xmlNodePtr tmp;
ret->doc = NULL;
tmp = ret->children;
while (tmp != NULL) {
tmp->doc = NULL;
tmp = tmp->next;
}
}
} 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 xmlChar *ExternalID, const xmlChar *SystemID) {
return(xmlSAXParseDTD(NULL, ExternalID, SystemID));
}
/************************************************************************
* *
* Front ends when parsing an Entity *
* *
************************************************************************/
/**
* xmlParseCtxtExternalEntity:
* @ctx: the existing parsing context
* @URL: the URL for the entity to load
* @ID: the System ID for the entity to load
* @lst: the return value for the set of parsed nodes
*
* Parse an external general entity within an existing parsing context
* An external general parsed entity is well-formed if it matches the
* production labeled extParsedEnt.
*
* [78] extParsedEnt ::= TextDecl? content
*
* Returns 0 if the entity is well formed, -1 in case of args problem and
* the parser error code otherwise
*/
int
xmlParseCtxtExternalEntity(xmlParserCtxtPtr ctx, const xmlChar *URL,
const xmlChar *ID, xmlNodePtr *lst) {
xmlParserCtxtPtr ctxt;
xmlDocPtr newDoc;
xmlSAXHandlerPtr oldsax = NULL;
int ret = 0;
xmlChar start[4];
xmlCharEncoding enc;
if (ctx->depth > 40) {
return(XML_ERR_ENTITY_LOOP);
}
if (lst != NULL)
*lst = NULL;
if ((URL == NULL) && (ID == NULL))
return(-1);
if (ctx->myDoc == NULL) /* @@ relax but check for dereferences */
return(-1);
ctxt = xmlCreateEntityParserCtxt(URL, ID, NULL);
if (ctxt == NULL) return(-1);
ctxt->userData = ctxt;
ctxt->_private = ctx->_private;
oldsax = ctxt->sax;
ctxt->sax = ctx->sax;
newDoc = xmlNewDoc(BAD_CAST "1.0");
if (newDoc == NULL) {
xmlFreeParserCtxt(ctxt);
return(-1);
}
if (ctx->myDoc != NULL) {
newDoc->intSubset = ctx->myDoc->intSubset;
newDoc->extSubset = ctx->myDoc->extSubset;
}
if (ctx->myDoc->URL != NULL) {
newDoc->URL = xmlStrdup(ctx->myDoc->URL);
}
newDoc->children = xmlNewDocNode(newDoc, NULL, BAD_CAST "pseudoroot", NULL);
if (newDoc->children == NULL) {
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(-1);
}
nodePush(ctxt, newDoc->children);
if (ctx->myDoc == NULL) {
ctxt->myDoc = newDoc;
} else {
ctxt->myDoc = ctx->myDoc;
newDoc->children->doc = ctx->myDoc;
}
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
GROW
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
/*
* Parse a possible text declaration first
*/
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
xmlParseTextDecl(ctxt);
}
/*
* Doing validity checking on chunk doesn't make sense
*/
ctxt->instate = XML_PARSER_CONTENT;
ctxt->validate = ctx->validate;
ctxt->valid = ctx->valid;
ctxt->loadsubset = ctx->loadsubset;
ctxt->depth = ctx->depth + 1;
ctxt->replaceEntities = ctx->replaceEntities;
if (ctxt->validate) {
ctxt->vctxt.error = ctx->vctxt.error;
ctxt->vctxt.warning = ctx->vctxt.warning;
} else {
ctxt->vctxt.error = NULL;
ctxt->vctxt.warning = NULL;
}
ctxt->vctxt.nodeTab = NULL;
ctxt->vctxt.nodeNr = 0;
ctxt->vctxt.nodeMax = 0;
ctxt->vctxt.node = NULL;
xmlParseContent(ctxt);
ctx->validate = ctxt->validate;
ctx->valid = ctxt->valid;
if ((RAW == '<') && (NXT(1) == '/')) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != 0) {
ctxt->errNo = XML_ERR_EXTRA_CONTENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"extra content at the end of well balanced chunk\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (ctxt->node != newDoc->children) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (!ctxt->wellFormed) {
if (ctxt->errNo == 0)
ret = 1;
else
ret = ctxt->errNo;
} else {
if (lst != NULL) {
xmlNodePtr cur;
/*
* Return the newly created nodeset after unlinking it from
* they pseudo parent.
*/
cur = newDoc->children->children;
*lst = cur;
while (cur != NULL) {
cur->parent = NULL;
cur = cur->next;
}
newDoc->children->children = NULL;
}
ret = 0;
}
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(ret);
}
/**
* xmlParseExternalEntityPrivate:
* @doc: the document the chunk pertains to
* @oldctxt: the previous parser context if available
* @sax: the SAX handler bloc (possibly NULL)
* @user_data: The user data returned on SAX callbacks (possibly NULL)
* @depth: Used for loop detection, use 0
* @URL: the URL for the entity to load
* @ID: the System ID for the entity to load
* @list: the return value for the set of parsed nodes
*
* Private version of xmlParseExternalEntity()
*
* Returns 0 if the entity is well formed, -1 in case of args problem and
* the parser error code otherwise
*/
static int
xmlParseExternalEntityPrivate(xmlDocPtr doc, xmlParserCtxtPtr oldctxt,
xmlSAXHandlerPtr sax,
void *user_data, int depth, const xmlChar *URL,
const xmlChar *ID, xmlNodePtr *list) {
xmlParserCtxtPtr ctxt;
xmlDocPtr newDoc;
xmlSAXHandlerPtr oldsax = NULL;
int ret = 0;
xmlChar start[4];
xmlCharEncoding enc;
if (depth > 40) {
return(XML_ERR_ENTITY_LOOP);
}
if (list != NULL)
*list = NULL;
if ((URL == NULL) && (ID == NULL))
return(-1);
if (doc == NULL) /* @@ relax but check for dereferences */
return(-1);
ctxt = xmlCreateEntityParserCtxt(URL, ID, NULL);
if (ctxt == NULL) return(-1);
ctxt->userData = ctxt;
if (oldctxt != NULL) {
ctxt->_private = oldctxt->_private;
ctxt->loadsubset = oldctxt->loadsubset;
ctxt->validate = oldctxt->validate;
ctxt->external = oldctxt->external;
ctxt->record_info = oldctxt->record_info;
ctxt->node_seq.maximum = oldctxt->node_seq.maximum;
ctxt->node_seq.length = oldctxt->node_seq.length;
ctxt->node_seq.buffer = oldctxt->node_seq.buffer;
} else {
/*
* Doing validity checking on chunk without context
* doesn't make sense
*/
ctxt->_private = NULL;
ctxt->validate = 0;
ctxt->external = 2;
ctxt->loadsubset = 0;
}
if (sax != NULL) {
oldsax = ctxt->sax;
ctxt->sax = sax;
if (user_data != NULL)
ctxt->userData = user_data;
}
newDoc = xmlNewDoc(BAD_CAST "1.0");
if (newDoc == NULL) {
ctxt->node_seq.maximum = 0;
ctxt->node_seq.length = 0;
ctxt->node_seq.buffer = NULL;
xmlFreeParserCtxt(ctxt);
return(-1);
}
if (doc != NULL) {
newDoc->intSubset = doc->intSubset;
newDoc->extSubset = doc->extSubset;
}
if (doc->URL != NULL) {
newDoc->URL = xmlStrdup(doc->URL);
}
newDoc->children = xmlNewDocNode(newDoc, NULL, BAD_CAST "pseudoroot", NULL);
if (newDoc->children == NULL) {
if (sax != NULL)
ctxt->sax = oldsax;
ctxt->node_seq.maximum = 0;
ctxt->node_seq.length = 0;
ctxt->node_seq.buffer = NULL;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(-1);
}
nodePush(ctxt, newDoc->children);
if (doc == NULL) {
ctxt->myDoc = newDoc;
} else {
ctxt->myDoc = doc;
newDoc->children->doc = doc;
}
/*
* Get the 4 first bytes and decode the charset
* if enc != XML_CHAR_ENCODING_NONE
* plug some encoding conversion routines.
*/
GROW;
start[0] = RAW;
start[1] = NXT(1);
start[2] = NXT(2);
start[3] = NXT(3);
enc = xmlDetectCharEncoding(start, 4);
if (enc != XML_CHAR_ENCODING_NONE) {
xmlSwitchEncoding(ctxt, enc);
}
/*
* Parse a possible text declaration first
*/
if ((RAW == '<') && (NXT(1) == '?') &&
(NXT(2) == 'x') && (NXT(3) == 'm') &&
(NXT(4) == 'l') && (IS_BLANK(NXT(5)))) {
xmlParseTextDecl(ctxt);
}
ctxt->instate = XML_PARSER_CONTENT;
ctxt->depth = depth;
xmlParseContent(ctxt);
if ((RAW == '<') && (NXT(1) == '/')) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != 0) {
ctxt->errNo = XML_ERR_EXTRA_CONTENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"extra content at the end of well balanced chunk\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (ctxt->node != newDoc->children) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (!ctxt->wellFormed) {
if (ctxt->errNo == 0)
ret = 1;
else
ret = ctxt->errNo;
} else {
if (list != NULL) {
xmlNodePtr cur;
/*
* Return the newly created nodeset after unlinking it from
* they pseudo parent.
*/
cur = newDoc->children->children;
*list = cur;
while (cur != NULL) {
cur->parent = NULL;
cur = cur->next;
}
newDoc->children->children = NULL;
}
ret = 0;
}
if (sax != NULL)
ctxt->sax = oldsax;
oldctxt->node_seq.maximum = ctxt->node_seq.maximum;
oldctxt->node_seq.length = ctxt->node_seq.length;
oldctxt->node_seq.buffer = ctxt->node_seq.buffer;
ctxt->node_seq.maximum = 0;
ctxt->node_seq.length = 0;
ctxt->node_seq.buffer = NULL;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(ret);
}
/**
* xmlParseExternalEntity:
* @doc: the document the chunk pertains to
* @sax: the SAX handler bloc (possibly NULL)
* @user_data: The user data returned on SAX callbacks (possibly NULL)
* @depth: Used for loop detection, use 0
* @URL: the URL for the entity to load
* @ID: the System ID for the entity to load
* @lst: the return value for the set of parsed nodes
*
* Parse an external general entity
* An external general parsed entity is well-formed if it matches the
* production labeled extParsedEnt.
*
* [78] extParsedEnt ::= TextDecl? content
*
* Returns 0 if the entity is well formed, -1 in case of args problem and
* the parser error code otherwise
*/
int
xmlParseExternalEntity(xmlDocPtr doc, xmlSAXHandlerPtr sax, void *user_data,
int depth, const xmlChar *URL, const xmlChar *ID, xmlNodePtr *lst) {
return(xmlParseExternalEntityPrivate(doc, NULL, sax, user_data, depth, URL,
ID, lst));
}
/**
* xmlParseBalancedChunkMemory:
* @doc: the document the chunk pertains to
* @sax: the SAX handler bloc (possibly NULL)
* @user_data: The user data returned on SAX callbacks (possibly NULL)
* @depth: Used for loop detection, use 0
* @string: the input string in UTF8 or ISO-Latin (zero terminated)
* @lst: the return value for the set of parsed nodes
*
* Parse a well-balanced chunk of an XML document
* called by the parser
* The allowed sequence for the Well Balanced Chunk is the one defined by
* the content production in the XML grammar:
*
* [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
*
* Returns 0 if the chunk is well balanced, -1 in case of args problem and
* the parser error code otherwise
*/
int
xmlParseBalancedChunkMemory(xmlDocPtr doc, xmlSAXHandlerPtr sax,
void *user_data, int depth, const xmlChar *string, xmlNodePtr *lst) {
return xmlParseBalancedChunkMemoryRecover( doc, sax, user_data,
depth, string, lst, 0 );
}
/**
* xmlParseBalancedChunkMemoryInternal:
* @oldctxt: the existing parsing context
* @string: the input string in UTF8 or ISO-Latin (zero terminated)
* @user_data: the user data field for the parser context
* @lst: the return value for the set of parsed nodes
*
*
* Parse a well-balanced chunk of an XML document
* called by the parser
* The allowed sequence for the Well Balanced Chunk is the one defined by
* the content production in the XML grammar:
*
* [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
*
* Returns 0 if the chunk is well balanced, -1 in case of args problem and
* the parser error code otherwise
*
* In case recover is set to 1, the nodelist will not be empty even if
* the parsed chunk is not well balanced.
*/
static int
xmlParseBalancedChunkMemoryInternal(xmlParserCtxtPtr oldctxt,
const xmlChar *string, void *user_data, xmlNodePtr *lst) {
xmlParserCtxtPtr ctxt;
xmlDocPtr newDoc = NULL;
xmlSAXHandlerPtr oldsax = NULL;
xmlNodePtr content = NULL;
int size;
int ret = 0;
if (oldctxt->depth > 40) {
return(XML_ERR_ENTITY_LOOP);
}
if (lst != NULL)
*lst = NULL;
if (string == NULL)
return(-1);
size = xmlStrlen(string);
ctxt = xmlCreateMemoryParserCtxt((char *) string, size);
if (ctxt == NULL) return(-1);
if (user_data != NULL)
ctxt->userData = user_data;
else
ctxt->userData = ctxt;
oldsax = ctxt->sax;
ctxt->sax = oldctxt->sax;
ctxt->_private = oldctxt->_private;
if (oldctxt->myDoc == NULL) {
newDoc = xmlNewDoc(BAD_CAST "1.0");
if (newDoc == NULL) {
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
return(-1);
}
ctxt->myDoc = newDoc;
} else {
ctxt->myDoc = oldctxt->myDoc;
content = ctxt->myDoc->children;
}
ctxt->myDoc->children = xmlNewDocNode(ctxt->myDoc, NULL,
BAD_CAST "pseudoroot", NULL);
if (ctxt->myDoc->children == NULL) {
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
if (newDoc != NULL)
xmlFreeDoc(newDoc);
return(-1);
}
nodePush(ctxt, ctxt->myDoc->children);
ctxt->instate = XML_PARSER_CONTENT;
ctxt->depth = oldctxt->depth + 1;
ctxt->validate = 0;
ctxt->loadsubset = oldctxt->loadsubset;
if ((oldctxt->validate) || (oldctxt->replaceEntities != 0)) {
/*
* ID/IDREF registration will be done in xmlValidateElement below
*/
ctxt->loadsubset |= XML_SKIP_IDS;
}
xmlParseContent(ctxt);
if ((RAW == '<') && (NXT(1) == '/')) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != 0) {
ctxt->errNo = XML_ERR_EXTRA_CONTENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"extra content at the end of well balanced chunk\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (ctxt->node != ctxt->myDoc->children) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (!ctxt->wellFormed) {
if (ctxt->errNo == 0)
ret = 1;
else
ret = ctxt->errNo;
} else {
ret = 0;
}
if ((lst != NULL) && (ret == 0)) {
xmlNodePtr cur;
/*
* Return the newly created nodeset after unlinking it from
* they pseudo parent.
*/
cur = ctxt->myDoc->children->children;
*lst = cur;
while (cur != NULL) {
if (oldctxt->validate && oldctxt->wellFormed &&
oldctxt->myDoc && oldctxt->myDoc->intSubset) {
oldctxt->valid &= xmlValidateElement(&oldctxt->vctxt,
oldctxt->myDoc, cur);
}
cur->parent = NULL;
cur = cur->next;
}
ctxt->myDoc->children->children = NULL;
}
if (ctxt->myDoc != NULL) {
xmlFreeNode(ctxt->myDoc->children);
ctxt->myDoc->children = content;
}
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
if (newDoc != NULL)
xmlFreeDoc(newDoc);
return(ret);
}
/**
* xmlParseBalancedChunkMemoryRecover:
* @doc: the document the chunk pertains to
* @sax: the SAX handler bloc (possibly NULL)
* @user_data: The user data returned on SAX callbacks (possibly NULL)
* @depth: Used for loop detection, use 0
* @string: the input string in UTF8 or ISO-Latin (zero terminated)
* @lst: the return value for the set of parsed nodes
* @recover: return nodes even if the data is broken (use 0)
*
*
* Parse a well-balanced chunk of an XML document
* called by the parser
* The allowed sequence for the Well Balanced Chunk is the one defined by
* the content production in the XML grammar:
*
* [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*
*
* Returns 0 if the chunk is well balanced, -1 in case of args problem and
* the parser error code otherwise
*
* In case recover is set to 1, the nodelist will not be empty even if
* the parsed chunk is not well balanced.
*/
int
xmlParseBalancedChunkMemoryRecover(xmlDocPtr doc, xmlSAXHandlerPtr sax,
void *user_data, int depth, const xmlChar *string, xmlNodePtr *lst,
int recover) {
xmlParserCtxtPtr ctxt;
xmlDocPtr newDoc;
xmlSAXHandlerPtr oldsax = NULL;
xmlNodePtr content;
int size;
int ret = 0;
if (depth > 40) {
return(XML_ERR_ENTITY_LOOP);
}
if (lst != NULL)
*lst = NULL;
if (string == NULL)
return(-1);
size = xmlStrlen(string);
ctxt = xmlCreateMemoryParserCtxt((char *) string, size);
if (ctxt == NULL) return(-1);
ctxt->userData = ctxt;
if (sax != NULL) {
oldsax = ctxt->sax;
ctxt->sax = sax;
if (user_data != NULL)
ctxt->userData = user_data;
}
newDoc = xmlNewDoc(BAD_CAST "1.0");
if (newDoc == NULL) {
xmlFreeParserCtxt(ctxt);
return(-1);
}
if (doc != NULL) {
newDoc->intSubset = doc->intSubset;
newDoc->extSubset = doc->extSubset;
}
newDoc->children = xmlNewDocNode(newDoc, NULL, BAD_CAST "pseudoroot", NULL);
if (newDoc->children == NULL) {
if (sax != NULL)
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(-1);
}
nodePush(ctxt, newDoc->children);
if (doc == NULL) {
ctxt->myDoc = newDoc;
} else {
ctxt->myDoc = newDoc;
newDoc->children->doc = doc;
}
ctxt->instate = XML_PARSER_CONTENT;
ctxt->depth = depth;
/*
* Doing validity checking on chunk doesn't make sense
*/
ctxt->validate = 0;
ctxt->loadsubset = 0;
if ( doc != NULL ){
content = doc->children;
doc->children = NULL;
xmlParseContent(ctxt);
doc->children = content;
}
else {
xmlParseContent(ctxt);
}
if ((RAW == '<') && (NXT(1) == '/')) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
} else if (RAW != 0) {
ctxt->errNo = XML_ERR_EXTRA_CONTENT;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"extra content at the end of well balanced chunk\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (ctxt->node != newDoc->children) {
ctxt->errNo = XML_ERR_NOT_WELL_BALANCED;
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"chunk is not well balanced\n");
ctxt->wellFormed = 0;
if (ctxt->recovery == 0) ctxt->disableSAX = 1;
}
if (!ctxt->wellFormed) {
if (ctxt->errNo == 0)
ret = 1;
else
ret = ctxt->errNo;
} else {
ret = 0;
}
if (lst != NULL && (ret == 0 || recover == 1)) {
xmlNodePtr cur;
/*
* Return the newly created nodeset after unlinking it from
* they pseudo parent.
*/
cur = newDoc->children->children;
*lst = cur;
while (cur != NULL) {
cur->parent = NULL;
cur = cur->next;
}
newDoc->children->children = NULL;
}
if (sax != NULL)
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
newDoc->intSubset = NULL;
newDoc->extSubset = NULL;
xmlFreeDoc(newDoc);
return(ret);
}
/**
* xmlSAXParseEntity:
* @sax: the SAX handler block
* @filename: the filename
*
* parse an XML external entity out of context 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.
*
* [78] extParsedEnt ::= TextDecl? content
*
* This correspond to a "Well Balanced" chunk
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseEntity(xmlSAXHandlerPtr sax, const char *filename) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
ctxt = xmlCreateFileParserCtxt(filename);
if (ctxt == NULL) {
return(NULL);
}
if (sax != NULL) {
if (ctxt->sax != NULL)
xmlFree(ctxt->sax);
ctxt->sax = sax;
ctxt->userData = NULL;
}
xmlParseExtParsedEnt(ctxt);
if (ctxt->wellFormed)
ret = ctxt->myDoc;
else {
ret = NULL;
xmlFreeDoc(ctxt->myDoc);
ctxt->myDoc = NULL;
}
if (sax != NULL)
ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return(ret);
}
/**
* xmlParseEntity:
* @filename: the filename
*
* parse an XML external entity out of context and build a tree.
*
* [78] extParsedEnt ::= TextDecl? content
*
* This correspond to a "Well Balanced" chunk
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlParseEntity(const char *filename) {
return(xmlSAXParseEntity(NULL, filename));
}
/**
* xmlCreateEntityParserCtxt:
* @URL: the entity URL
* @ID: the entity PUBLIC ID
* @base: a possible base for the target URI
*
* Create a parser context for an external entity
* Automatic support for ZLIB/Compress compressed document is provided
* by default if found at compile-time.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateEntityParserCtxt(const xmlChar *URL, const xmlChar *ID,
const xmlChar *base) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr inputStream;
char *directory = NULL;
xmlChar *uri;
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
return(NULL);
}
uri = xmlBuildURI(URL, base);
if (uri == NULL) {
inputStream = xmlLoadExternalEntity((char *)URL, (char *)ID, ctxt);
if (inputStream == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
inputPush(ctxt, inputStream);
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory((char *)URL);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = directory;
} else {
inputStream = xmlLoadExternalEntity((char *)uri, (char *)ID, ctxt);
if (inputStream == NULL) {
xmlFree(uri);
xmlFreeParserCtxt(ctxt);
return(NULL);
}
inputPush(ctxt, inputStream);
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory((char *)uri);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = directory;
xmlFree(uri);
}
return(ctxt);
}
/************************************************************************
* *
* Front ends when parsing from a file *
* *
************************************************************************/
/**
* 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;
char *directory = NULL;
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
if (xmlDefaultSAXHandler.error != NULL) {
xmlDefaultSAXHandler.error(NULL, "out of memory\n");
}
return(NULL);
}
inputStream = xmlLoadExternalEntity(filename, NULL, ctxt);
if (inputStream == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
inputPush(ctxt, inputStream);
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory(filename);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = directory;
return(ctxt);
}
/**
* xmlSAXParseFileWithData:
* @sax: the SAX handler block
* @filename: the filename
* @recovery: work in recovery mode, i.e. tries to read no Well Formed
* documents
* @data: the userdata
*
* 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.
*
* User data (void *) is stored within the parser context in the
* context's _private member, so it is available nearly everywhere in libxml
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseFileWithData(xmlSAXHandlerPtr sax, const char *filename,
int recovery, void *data) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
char *directory = NULL;
xmlInitParser();
ctxt = xmlCreateFileParserCtxt(filename);
if (ctxt == NULL) {
return(NULL);
}
if (sax != NULL) {
if (ctxt->sax != NULL)
xmlFree(ctxt->sax);
ctxt->sax = sax;
}
if (data!=NULL) {
ctxt->_private=data;
}
if ((ctxt->directory == NULL) && (directory == NULL))
directory = xmlParserGetDirectory(filename);
if ((ctxt->directory == NULL) && (directory != NULL))
ctxt->directory = (char *) xmlStrdup((xmlChar *) directory);
ctxt->recovery = recovery;
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);
}
/**
* 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) {
return(xmlSAXParseFileWithData(sax,filename,recovery,NULL));
}
/**
* xmlRecoverDoc:
* @cur: a pointer to an array of xmlChar
*
* 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(xmlChar *cur) {
return(xmlSAXParseDoc(NULL, cur, 1));
}
/**
* 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 if the file was wellformed,
* NULL otherwise.
*/
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));
}
/**
* xmlSetupParserForBuffer:
* @ctxt: an XML parser context
* @buffer: a xmlChar * 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 xmlChar* buffer,
const char* filename)
{
xmlParserInputPtr input;
input = xmlNewInputStream(ctxt);
if (input == NULL) {
xmlGenericError(xmlGenericErrorContext,
"malloc");
xmlFree(ctxt);
return;
}
xmlClearParserCtxt(ctxt);
if (filename != NULL)
input->filename = (char *) xmlCanonicPath((const xmlChar *)filename);
input->base = buffer;
input->cur = buffer;
input->end = &buffer[xmlStrlen(buffer)];
inputPush(ctxt, input);
}
/**
* xmlSAXUserParseFile:
* @sax: a SAX handler
* @user_data: The user data returned on SAX callbacks
* @filename: a file name
*
* parse an XML file and call the given SAX handler routines.
* Automatic support for ZLIB/Compress compressed document is provided
*
* Returns 0 in case of success or a error number otherwise
*/
int
xmlSAXUserParseFile(xmlSAXHandlerPtr sax, void *user_data,
const char *filename) {
int ret = 0;
xmlParserCtxtPtr ctxt;
ctxt = xmlCreateFileParserCtxt(filename);
if (ctxt == NULL) return -1;
if (ctxt->sax != &xmlDefaultSAXHandler)
xmlFree(ctxt->sax);
ctxt->sax = sax;
if (user_data != NULL)
ctxt->userData = user_data;
xmlParseDocument(ctxt);
if (ctxt->wellFormed)
ret = 0;
else {
if (ctxt->errNo != 0)
ret = ctxt->errNo;
else
ret = -1;
}
if (sax != NULL)
ctxt->sax = NULL;
xmlFreeParserCtxt(ctxt);
return ret;
}
/************************************************************************
* *
* Front ends when parsing from memory *
* *
************************************************************************/
/**
* xmlCreateMemoryParserCtxt:
* @buffer: a pointer to a char array
* @size: the size of the array
*
* Create a parser context for an XML in-memory document.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateMemoryParserCtxt(const char *buffer, int size) {
xmlParserCtxtPtr ctxt;
xmlParserInputPtr input;
xmlParserInputBufferPtr buf;
if (buffer == NULL)
return(NULL);
if (size <= 0)
return(NULL);
ctxt = xmlNewParserCtxt();
if (ctxt == NULL)
return(NULL);
buf = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE);
if (buf == NULL) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
xmlFreeParserInputBuffer(buf);
xmlFreeParserCtxt(ctxt);
return(NULL);
}
input->filename = NULL;
input->buf = buf;
input->base = input->buf->buffer->content;
input->cur = input->buf->buffer->content;
input->end = &input->buf->buffer->content[input->buf->buffer->use];
inputPush(ctxt, input);
return(ctxt);
}
/**
* xmlSAXParseMemoryWithData:
* @sax: the SAX handler block
* @buffer: an pointer to a char array
* @size: the size of the array
* @recovery: work in recovery mode, i.e. tries to read no Well Formed
* documents
* @data: the userdata
*
* 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.
*
* User data (void *) is stored within the parser context in the
* context's _private member, so it is available nearly everywhere in libxml
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlSAXParseMemoryWithData(xmlSAXHandlerPtr sax, const char *buffer,
int size, int recovery, void *data) {
xmlDocPtr ret;
xmlParserCtxtPtr ctxt;
ctxt = xmlCreateMemoryParserCtxt(buffer, size);
if (ctxt == NULL) return(NULL);
if (sax != NULL) {
if (ctxt->sax != NULL)
xmlFree(ctxt->sax);
ctxt->sax = sax;
}
if (data!=NULL) {
ctxt->_private=data;
}
ctxt->recovery = recovery;
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);
}
/**
* xmlSAXParseMemory:
* @sax: the SAX handler block
* @buffer: an pointer to a char array
* @size: the size of the array
* @recovery: work in recovery mode, i.e. tries to read not 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, const char *buffer,
int size, int recovery) {
return xmlSAXParseMemoryWithData(sax, buffer, size, recovery, NULL);
}
/**
* 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(const 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(const char *buffer, int size) {
return(xmlSAXParseMemory(NULL, buffer, size, 1));
}
/**
* xmlSAXUserParseMemory:
* @sax: a SAX handler
* @user_data: The user data returned on SAX callbacks
* @buffer: an in-memory XML document input
* @size: the length of the XML document in bytes
*
* A better SAX parsing routine.
* parse an XML in-memory buffer and call the given SAX handler routines.
*
* Returns 0 in case of success or a error number otherwise
*/
int xmlSAXUserParseMemory(xmlSAXHandlerPtr sax, void *user_data,
const char *buffer, int size) {
int ret = 0;
xmlParserCtxtPtr ctxt;
xmlSAXHandlerPtr oldsax = NULL;
if (sax == NULL) return -1;
ctxt = xmlCreateMemoryParserCtxt(buffer, size);
if (ctxt == NULL) return -1;
oldsax = ctxt->sax;
ctxt->sax = sax;
if (user_data != NULL)
ctxt->userData = user_data;
xmlParseDocument(ctxt);
if (ctxt->wellFormed)
ret = 0;
else {
if (ctxt->errNo != 0)
ret = ctxt->errNo;
else
ret = -1;
}
ctxt->sax = oldsax;
xmlFreeParserCtxt(ctxt);
return ret;
}
/**
* xmlCreateDocParserCtxt:
* @cur: a pointer to an array of xmlChar
*
* Creates a parser context for an XML in-memory document.
*
* Returns the new parser context or NULL
*/
xmlParserCtxtPtr
xmlCreateDocParserCtxt(xmlChar *cur) {
int len;
if (cur == NULL)
return(NULL);
len = xmlStrlen(cur);
return(xmlCreateMemoryParserCtxt((char *)cur, len));
}
/**
* xmlSAXParseDoc:
* @sax: the SAX handler block
* @cur: a pointer to an array of xmlChar
* @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, xmlChar *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 xmlChar
*
* parse an XML in-memory document and build a tree.
*
* Returns the resulting document tree
*/
xmlDocPtr
xmlParseDoc(xmlChar *cur) {
return(xmlSAXParseDoc(NULL, cur, 0));
}
/************************************************************************
* *
* Specific function to keep track of entities references *
* and used by the XSLT debugger *
* *
************************************************************************/
static xmlEntityReferenceFunc xmlEntityRefFunc = NULL;
/**
* xmlAddEntityReference:
* @ent : A valid entity
* @firstNode : A valid first node for children of entity
* @lastNode : A valid last node of children entity
*
* Notify of a reference to an entity of type XML_EXTERNAL_GENERAL_PARSED_ENTITY
*/
static void
xmlAddEntityReference(xmlEntityPtr ent, xmlNodePtr firstNode,
xmlNodePtr lastNode)
{
if (xmlEntityRefFunc != NULL) {
(*xmlEntityRefFunc) (ent, firstNode, lastNode);
}
}
/**
* xmlSetEntityReferenceFunc:
* @func: A valid function
*
* Set the function to call call back when a xml reference has been made
*/
void
xmlSetEntityReferenceFunc(xmlEntityReferenceFunc func)
{
xmlEntityRefFunc = func;
}
/************************************************************************
* *
* Miscellaneous *
* *
************************************************************************/
#ifdef LIBXML_XPATH_ENABLED
#include <libxml/xpath.h>
#endif
extern void xmlGenericErrorDefaultFunc(void *ctx, const char *msg, ...);
static int xmlParserInitialized = 0;
/**
* xmlInitParser:
*
* Initialization function for the XML parser.
* This is not reentrant. Call once before processing in case of
* use in multithreaded programs.
*/
void
xmlInitParser(void) {
if (xmlParserInitialized != 0)
return;
if ((xmlGenericError == xmlGenericErrorDefaultFunc) ||
(xmlGenericError == NULL))
initGenericErrorDefaultFunc(NULL);
xmlInitGlobals();
xmlInitThreads();
xmlInitMemory();
xmlInitCharEncodingHandlers();
xmlInitializePredefinedEntities();
xmlDefaultSAXHandlerInit();
xmlRegisterDefaultInputCallbacks();
xmlRegisterDefaultOutputCallbacks();
#ifdef LIBXML_HTML_ENABLED
htmlInitAutoClose();
htmlDefaultSAXHandlerInit();
#endif
#ifdef LIBXML_XPATH_ENABLED
xmlXPathInit();
#endif
xmlParserInitialized = 1;
}
/**
* xmlCleanupParser:
*
* Cleanup function for the XML parser. It tries to reclaim all
* parsing related global memory allocated for the parser processing.
* It doesn't deallocate any document related memory. Calling this
* function should not prevent reusing the parser.
* One should call xmlCleanupParser() only when the process has
* finished using the library or XML document built with it.
*/
void
xmlCleanupParser(void) {
xmlCleanupCharEncodingHandlers();
xmlCleanupPredefinedEntities();
#ifdef LIBXML_CATALOG_ENABLED
xmlCatalogCleanup();
#endif
xmlCleanupThreads();
xmlCleanupGlobals();
xmlParserInitialized = 0;
}