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c14c3892a2
libxml2/tree.c
Daniel Veillard 1f8658a76f Dodji pointed out a bug in xmlGetNodePath() applied patch from Albert Chin 
* tree.c: Dodji pointed out a bug in xmlGetNodePath()
* xmlcatalog.c: applied patch from Albert Chin to add a
  --no-super-update option to xmlcatalog see #145461
  and another patch also from Albert Chin to not crash
  on -sgml --del without args see #145462
* Makefile.am: applied another patch from Albert Chin to
  fix a problem with diff on Solaris #145511
* xmlstring.c: fix xmlCheckUTF8() according to the suggestion
  in bug #148115
* python/libxml.py: apply fix from Marc-Antoine Parent about
  the errors in libxml(2).py on the node wrapper #135547
Daniel
2004-08-14 21:46:31 +00:00

7087 lines
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/*
* tree.c : implementation of access function for an XML tree.
*
* References:
* XHTML 1.0 W3C REC: http://www.w3.org/TR/2002/REC-xhtml1-20020801/
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*
*/
#define IN_LIBXML
#include "libxml.h"
#include <string.h> /* for memset() only ! */
#ifdef HAVE_CTYPE_H
#include <ctype.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#include <libxml/xmlmemory.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/uri.h>
#include <libxml/entities.h>
#include <libxml/valid.h>
#include <libxml/xmlerror.h>
#include <libxml/parserInternals.h>
#include <libxml/globals.h>
#ifdef LIBXML_HTML_ENABLED
#include <libxml/HTMLtree.h>
#endif
int __xmlRegisterCallbacks = 0;
xmlNsPtr xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns);
/************************************************************************
* *
* Tree memory error handler *
* *
************************************************************************/
/**
* xmlTreeErrMemory:
* @extra: extra informations
*
* Handle an out of memory condition
*/
static void
xmlTreeErrMemory(const char *extra)
{
__xmlSimpleError(XML_FROM_TREE, XML_ERR_NO_MEMORY, NULL, NULL, extra);
}
/**
* xmlTreeErr:
* @code: the error number
* @extra: extra informations
*
* Handle an out of memory condition
*/
static void
xmlTreeErr(int code, xmlNodePtr node, const char *extra)
{
const char *msg = NULL;
switch(code) {
case XML_TREE_INVALID_HEX:
msg = "invalid hexadecimal character value\n";
break;
case XML_TREE_INVALID_DEC:
msg = "invalid decimal character value\n";
break;
case XML_TREE_UNTERMINATED_ENTITY:
msg = "unterminated entity reference %15s\n";
break;
default:
msg = "unexpected error number\n";
}
__xmlSimpleError(XML_FROM_TREE, code, node, msg, extra);
}
/************************************************************************
* *
* A few static variables and macros *
* *
************************************************************************/
/* #undef xmlStringText */
const xmlChar xmlStringText[] = { 't', 'e', 'x', 't', 0 };
/* #undef xmlStringTextNoenc */
const xmlChar xmlStringTextNoenc[] =
{ 't', 'e', 'x', 't', 'n', 'o', 'e', 'n', 'c', 0 };
/* #undef xmlStringComment */
const xmlChar xmlStringComment[] = { 'c', 'o', 'm', 'm', 'e', 'n', 't', 0 };
static int xmlCompressMode = 0;
static int xmlCheckDTD = 1;
#define UPDATE_LAST_CHILD_AND_PARENT(n) if ((n) != NULL) { \
xmlNodePtr ulccur = (n)->children; \
if (ulccur == NULL) { \
(n)->last = NULL; \
} else { \
while (ulccur->next != NULL) { \
ulccur->parent = (n); \
ulccur = ulccur->next; \
} \
ulccur->parent = (n); \
(n)->last = ulccur; \
}}
/* #define DEBUG_BUFFER */
/* #define DEBUG_TREE */
/************************************************************************
* *
* Functions to move to entities.c once the *
* API freeze is smoothen and they can be made public. *
* *
************************************************************************/
#include <libxml/hash.h>
#ifdef LIBXML_TREE_ENABLED
/**
* xmlGetEntityFromDtd:
* @dtd: A pointer to the DTD to search
* @name: The entity name
*
* Do an entity lookup in the DTD entity hash table and
* return the corresponding entity, if found.
*
* Returns A pointer to the entity structure or NULL if not found.
*/
static xmlEntityPtr
xmlGetEntityFromDtd(xmlDtdPtr dtd, const xmlChar *name) {
xmlEntitiesTablePtr table;
if((dtd != NULL) && (dtd->entities != NULL)) {
table = (xmlEntitiesTablePtr) dtd->entities;
return((xmlEntityPtr) xmlHashLookup(table, name));
/* return(xmlGetEntityFromTable(table, name)); */
}
return(NULL);
}
/**
* xmlGetParameterEntityFromDtd:
* @dtd: A pointer to the DTD to search
* @name: The entity name
*
* Do an entity lookup in the DTD pararmeter entity hash table and
* return the corresponding entity, if found.
*
* Returns A pointer to the entity structure or NULL if not found.
*/
static xmlEntityPtr
xmlGetParameterEntityFromDtd(xmlDtdPtr dtd, const xmlChar *name) {
xmlEntitiesTablePtr table;
if ((dtd != NULL) && (dtd->pentities != NULL)) {
table = (xmlEntitiesTablePtr) dtd->pentities;
return((xmlEntityPtr) xmlHashLookup(table, name));
/* return(xmlGetEntityFromTable(table, name)); */
}
return(NULL);
}
#endif /* LIBXML_TREE_ENABLED */
/************************************************************************
* *
* QName handling helper *
* *
************************************************************************/
/**
* xmlBuildQName:
* @ncname: the Name
* @prefix: the prefix
* @memory: preallocated memory
* @len: preallocated memory length
*
* Builds the QName @prefix:@ncname in @memory if there is enough space
* and prefix is not NULL nor empty, otherwise allocate a new string.
* If prefix is NULL or empty it returns ncname.
*
* Returns the new string which must be freed by the caller if different from
* @memory and @ncname or NULL in case of error
*/
xmlChar *
xmlBuildQName(const xmlChar *ncname, const xmlChar *prefix,
xmlChar *memory, int len) {
int lenn, lenp;
xmlChar *ret;
if (ncname == NULL) return(NULL);
if (prefix == NULL) return((xmlChar *) ncname);
lenn = strlen((char *) ncname);
lenp = strlen((char *) prefix);
if ((memory == NULL) || (len < lenn + lenp + 2)) {
ret = (xmlChar *) xmlMallocAtomic(lenn + lenp + 2);
if (ret == NULL) {
xmlTreeErrMemory("building QName");
return(NULL);
}
} else {
ret = memory;
}
memcpy(&ret[0], prefix, lenp);
ret[lenp] = ':';
memcpy(&ret[lenp + 1], ncname, lenn);
ret[lenn + lenp + 1] = 0;
return(ret);
}
/**
* xmlSplitQName2:
* @name: the full QName
* @prefix: a xmlChar **
*
* parse an XML qualified name string
*
* [NS 5] QName ::= (Prefix ':')? LocalPart
*
* [NS 6] Prefix ::= NCName
*
* [NS 7] LocalPart ::= NCName
*
* Returns NULL if not a QName, otherwise the local part, and prefix
* is updated to get the Prefix if any.
*/
xmlChar *
xmlSplitQName2(const xmlChar *name, xmlChar **prefix) {
int len = 0;
xmlChar *ret = NULL;
*prefix = NULL;
if (name == NULL) return(NULL);
#ifndef XML_XML_NAMESPACE
/* xml: prefix is not really a namespace */
if ((name[0] == 'x') && (name[1] == 'm') &&
(name[2] == 'l') && (name[3] == ':'))
return(NULL);
#endif
/* nasty but valid */
if (name[0] == ':')
return(NULL);
/*
* we are not trying to validate but just to cut, and yes it will
* work even if this is as set of UTF-8 encoded chars
*/
while ((name[len] != 0) && (name[len] != ':'))
len++;
if (name[len] == 0)
return(NULL);
*prefix = xmlStrndup(name, len);
if (*prefix == NULL) {
xmlTreeErrMemory("QName split");
return(NULL);
}
ret = xmlStrdup(&name[len + 1]);
if (ret == NULL) {
xmlTreeErrMemory("QName split");
if (*prefix != NULL) {
xmlFree(*prefix);
*prefix = NULL;
}
return(NULL);
}
return(ret);
}
/**
* xmlSplitQName3:
* @name: the full QName
* @len: an int *
*
* parse an XML qualified name string,i
*
* returns NULL if it is not a Qualified Name, otherwise, update len
* with the lenght in byte of the prefix and return a pointer
*/
const xmlChar *
xmlSplitQName3(const xmlChar *name, int *len) {
int l = 0;
if (name == NULL) return(NULL);
if (len == NULL) return(NULL);
/* nasty but valid */
if (name[0] == ':')
return(NULL);
/*
* we are not trying to validate but just to cut, and yes it will
* work even if this is as set of UTF-8 encoded chars
*/
while ((name[l] != 0) && (name[l] != ':'))
l++;
if (name[l] == 0)
return(NULL);
*len = l;
return(&name[l+1]);
}
/************************************************************************
* *
* Check Name, NCName and QName strings *
* *
************************************************************************/
#define CUR_SCHAR(s, l) xmlStringCurrentChar(NULL, s, &l)
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/**
* xmlValidateNCName:
* @value: the value to check
* @space: allow spaces in front and end of the string
*
* Check that a value conforms to the lexical space of NCName
*
* Returns 0 if this validates, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlValidateNCName(const xmlChar *value, int space) {
const xmlChar *cur = value;
int c,l;
/*
* First quick algorithm for ASCII range
*/
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||
(*cur == '_'))
cur++;
else
goto try_complex;
while (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.'))
cur++;
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (*cur == 0)
return(0);
try_complex:
/*
* Second check for chars outside the ASCII range
*/
cur = value;
c = CUR_SCHAR(cur, l);
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if ((!IS_LETTER(c)) && (c != '_'))
return(1);
cur += l;
c = CUR_SCHAR(cur, l);
while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||
(c == '-') || (c == '_') || IS_COMBINING(c) ||
IS_EXTENDER(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (c != 0)
return(1);
return(0);
}
#endif
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/**
* xmlValidateQName:
* @value: the value to check
* @space: allow spaces in front and end of the string
*
* Check that a value conforms to the lexical space of QName
*
* Returns 0 if this validates, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlValidateQName(const xmlChar *value, int space) {
const xmlChar *cur = value;
int c,l;
/*
* First quick algorithm for ASCII range
*/
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||
(*cur == '_'))
cur++;
else
goto try_complex;
while (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.'))
cur++;
if (*cur == ':') {
cur++;
if (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
(*cur == '_'))
cur++;
else
goto try_complex;
while (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.'))
cur++;
}
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (*cur == 0)
return(0);
try_complex:
/*
* Second check for chars outside the ASCII range
*/
cur = value;
c = CUR_SCHAR(cur, l);
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if ((!IS_LETTER(c)) && (c != '_'))
return(1);
cur += l;
c = CUR_SCHAR(cur, l);
while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||
(c == '-') || (c == '_') || IS_COMBINING(c) ||
IS_EXTENDER(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
if (c == ':') {
cur += l;
c = CUR_SCHAR(cur, l);
if ((!IS_LETTER(c)) && (c != '_'))
return(1);
cur += l;
c = CUR_SCHAR(cur, l);
while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||
(c == '-') || (c == '_') || IS_COMBINING(c) ||
IS_EXTENDER(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (c != 0)
return(1);
return(0);
}
/**
* xmlValidateName:
* @value: the value to check
* @space: allow spaces in front and end of the string
*
* Check that a value conforms to the lexical space of Name
*
* Returns 0 if this validates, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlValidateName(const xmlChar *value, int space) {
const xmlChar *cur = value;
int c,l;
/*
* First quick algorithm for ASCII range
*/
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||
(*cur == '_') || (*cur == ':'))
cur++;
else
goto try_complex;
while (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))
cur++;
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (*cur == 0)
return(0);
try_complex:
/*
* Second check for chars outside the ASCII range
*/
cur = value;
c = CUR_SCHAR(cur, l);
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if ((!IS_LETTER(c)) && (c != '_') && (c != ':'))
return(1);
cur += l;
c = CUR_SCHAR(cur, l);
while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||
(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (c != 0)
return(1);
return(0);
}
/**
* xmlValidateNMToken:
* @value: the value to check
* @space: allow spaces in front and end of the string
*
* Check that a value conforms to the lexical space of NMToken
*
* Returns 0 if this validates, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlValidateNMToken(const xmlChar *value, int space) {
const xmlChar *cur = value;
int c,l;
/*
* First quick algorithm for ASCII range
*/
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))
cur++;
else
goto try_complex;
while (((*cur >= 'a') && (*cur <= 'z')) ||
((*cur >= 'A') && (*cur <= 'Z')) ||
((*cur >= '0') && (*cur <= '9')) ||
(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))
cur++;
if (space)
while (IS_BLANK_CH(*cur)) cur++;
if (*cur == 0)
return(0);
try_complex:
/*
* Second check for chars outside the ASCII range
*/
cur = value;
c = CUR_SCHAR(cur, l);
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (!(IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||
(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)))
return(1);
cur += l;
c = CUR_SCHAR(cur, l);
while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||
(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
if (space) {
while (IS_BLANK(c)) {
cur += l;
c = CUR_SCHAR(cur, l);
}
}
if (c != 0)
return(1);
return(0);
}
#endif /* LIBXML_TREE_ENABLED */
/************************************************************************
* *
* Allocation and deallocation of basic structures *
* *
************************************************************************/
/**
* xmlSetBufferAllocationScheme:
* @scheme: allocation method to use
*
* Set the buffer allocation method. Types are
* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down
* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,
* improves performance
*/
void
xmlSetBufferAllocationScheme(xmlBufferAllocationScheme scheme) {
xmlBufferAllocScheme = scheme;
}
/**
* xmlGetBufferAllocationScheme:
*
* Types are
* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down
* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,
* improves performance
*
* Returns the current allocation scheme
*/
xmlBufferAllocationScheme
xmlGetBufferAllocationScheme(void) {
return(xmlBufferAllocScheme);
}
/**
* xmlNewNs:
* @node: the element carrying the namespace
* @href: the URI associated
* @prefix: the prefix for the namespace
*
* Creation of a new Namespace. This function will refuse to create
* a namespace with a similar prefix than an existing one present on this
* node.
* We use href==NULL in the case of an element creation where the namespace
* was not defined.
* Returns a new namespace pointer or NULL
*/
xmlNsPtr
xmlNewNs(xmlNodePtr node, const xmlChar *href, const xmlChar *prefix) {
xmlNsPtr cur;
if ((node != NULL) && (node->type != XML_ELEMENT_NODE))
return(NULL);
if ((prefix != NULL) && (xmlStrEqual(prefix, BAD_CAST "xml")))
return(NULL);
/*
* Allocate a new Namespace and fill the fields.
*/
cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (cur == NULL) {
xmlTreeErrMemory("building namespace");
return(NULL);
}
memset(cur, 0, sizeof(xmlNs));
cur->type = XML_LOCAL_NAMESPACE;
if (href != NULL)
cur->href = xmlStrdup(href);
if (prefix != NULL)
cur->prefix = xmlStrdup(prefix);
/*
* Add it at the end to preserve parsing order ...
* and checks for existing use of the prefix
*/
if (node != NULL) {
if (node->nsDef == NULL) {
node->nsDef = cur;
} else {
xmlNsPtr prev = node->nsDef;
if (((prev->prefix == NULL) && (cur->prefix == NULL)) ||
(xmlStrEqual(prev->prefix, cur->prefix))) {
xmlFreeNs(cur);
return(NULL);
}
while (prev->next != NULL) {
prev = prev->next;
if (((prev->prefix == NULL) && (cur->prefix == NULL)) ||
(xmlStrEqual(prev->prefix, cur->prefix))) {
xmlFreeNs(cur);
return(NULL);
}
}
prev->next = cur;
}
}
return(cur);
}
/**
* xmlSetNs:
* @node: a node in the document
* @ns: a namespace pointer
*
* Associate a namespace to a node, a posteriori.
*/
void
xmlSetNs(xmlNodePtr node, xmlNsPtr ns) {
if (node == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlSetNs: node == NULL\n");
#endif
return;
}
node->ns = ns;
}
/**
* xmlFreeNs:
* @cur: the namespace pointer
*
* Free up the structures associated to a namespace
*/
void
xmlFreeNs(xmlNsPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeNs : ns == NULL\n");
#endif
return;
}
if (cur->href != NULL) xmlFree((char *) cur->href);
if (cur->prefix != NULL) xmlFree((char *) cur->prefix);
xmlFree(cur);
}
/**
* xmlFreeNsList:
* @cur: the first namespace pointer
*
* Free up all the structures associated to the chained namespaces.
*/
void
xmlFreeNsList(xmlNsPtr cur) {
xmlNsPtr next;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeNsList : ns == NULL\n");
#endif
return;
}
while (cur != NULL) {
next = cur->next;
xmlFreeNs(cur);
cur = next;
}
}
/**
* xmlNewDtd:
* @doc: the document pointer
* @name: the DTD name
* @ExternalID: the external ID
* @SystemID: the system ID
*
* Creation of a new DTD for the external subset. To create an
* internal subset, use xmlCreateIntSubset().
*
* Returns a pointer to the new DTD structure
*/
xmlDtdPtr
xmlNewDtd(xmlDocPtr doc, const xmlChar *name,
const xmlChar *ExternalID, const xmlChar *SystemID) {
xmlDtdPtr cur;
if ((doc != NULL) && (doc->extSubset != NULL)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewDtd(%s): document %s already have a DTD %s\n",
/* !!! */ (char *) name, doc->name,
/* !!! */ (char *)doc->extSubset->name);
#endif
return(NULL);
}
/*
* Allocate a new DTD and fill the fields.
*/
cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));
if (cur == NULL) {
xmlTreeErrMemory("building DTD");
return(NULL);
}
memset(cur, 0 , sizeof(xmlDtd));
cur->type = XML_DTD_NODE;
if (name != NULL)
cur->name = xmlStrdup(name);
if (ExternalID != NULL)
cur->ExternalID = xmlStrdup(ExternalID);
if (SystemID != NULL)
cur->SystemID = xmlStrdup(SystemID);
if (doc != NULL)
doc->extSubset = cur;
cur->doc = doc;
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlGetIntSubset:
* @doc: the document pointer
*
* Get the internal subset of a document
* Returns a pointer to the DTD structure or NULL if not found
*/
xmlDtdPtr
xmlGetIntSubset(xmlDocPtr doc) {
xmlNodePtr cur;
if (doc == NULL)
return(NULL);
cur = doc->children;
while (cur != NULL) {
if (cur->type == XML_DTD_NODE)
return((xmlDtdPtr) cur);
cur = cur->next;
}
return((xmlDtdPtr) doc->intSubset);
}
/**
* xmlCreateIntSubset:
* @doc: the document pointer
* @name: the DTD name
* @ExternalID: the external (PUBLIC) ID
* @SystemID: the system ID
*
* Create the internal subset of a document
* Returns a pointer to the new DTD structure
*/
xmlDtdPtr
xmlCreateIntSubset(xmlDocPtr doc, const xmlChar *name,
const xmlChar *ExternalID, const xmlChar *SystemID) {
xmlDtdPtr cur;
if ((doc != NULL) && (xmlGetIntSubset(doc) != NULL)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlCreateIntSubset(): document %s already have an internal subset\n",
doc->name);
#endif
return(NULL);
}
/*
* Allocate a new DTD and fill the fields.
*/
cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));
if (cur == NULL) {
xmlTreeErrMemory("building internal subset");
return(NULL);
}
memset(cur, 0, sizeof(xmlDtd));
cur->type = XML_DTD_NODE;
if (name != NULL) {
cur->name = xmlStrdup(name);
if (cur->name == NULL) {
xmlTreeErrMemory("building internal subset");
xmlFree(cur);
return(NULL);
}
}
if (ExternalID != NULL) {
cur->ExternalID = xmlStrdup(ExternalID);
if (cur->ExternalID == NULL) {
xmlTreeErrMemory("building internal subset");
if (cur->name != NULL)
xmlFree((char *)cur->name);
xmlFree(cur);
return(NULL);
}
}
if (SystemID != NULL) {
cur->SystemID = xmlStrdup(SystemID);
if (cur->SystemID == NULL) {
xmlTreeErrMemory("building internal subset");
if (cur->name != NULL)
xmlFree((char *)cur->name);
if (cur->ExternalID != NULL)
xmlFree((char *)cur->ExternalID);
xmlFree(cur);
return(NULL);
}
}
if (doc != NULL) {
doc->intSubset = cur;
cur->parent = doc;
cur->doc = doc;
if (doc->children == NULL) {
doc->children = (xmlNodePtr) cur;
doc->last = (xmlNodePtr) cur;
} else {
if (doc->type == XML_HTML_DOCUMENT_NODE) {
xmlNodePtr prev;
prev = doc->children;
prev->prev = (xmlNodePtr) cur;
cur->next = prev;
doc->children = (xmlNodePtr) cur;
} else {
xmlNodePtr next;
next = doc->children;
while ((next != NULL) && (next->type != XML_ELEMENT_NODE))
next = next->next;
if (next == NULL) {
cur->prev = doc->last;
cur->prev->next = (xmlNodePtr) cur;
cur->next = NULL;
doc->last = (xmlNodePtr) cur;
} else {
cur->next = next;
cur->prev = next->prev;
if (cur->prev == NULL)
doc->children = (xmlNodePtr) cur;
else
cur->prev->next = (xmlNodePtr) cur;
next->prev = (xmlNodePtr) cur;
}
}
}
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* DICT_FREE:
* @str: a string
*
* Free a string if it is not owned by the "dict" dictionnary in the
* current scope
*/
#define DICT_FREE(str) \
if ((str) && ((!dict) || \
(xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \
xmlFree((char *)(str));
/**
* xmlFreeDtd:
* @cur: the DTD structure to free up
*
* Free a DTD structure.
*/
void
xmlFreeDtd(xmlDtdPtr cur) {
xmlDictPtr dict = NULL;
if (cur == NULL) {
return;
}
if (cur->doc != NULL) dict = cur->doc->dict;
if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
if (cur->children != NULL) {
xmlNodePtr next, c = cur->children;
/*
* Cleanup all nodes which are not part of the specific lists
* of notations, elements, attributes and entities.
*/
while (c != NULL) {
next = c->next;
if ((c->type != XML_NOTATION_NODE) &&
(c->type != XML_ELEMENT_DECL) &&
(c->type != XML_ATTRIBUTE_DECL) &&
(c->type != XML_ENTITY_DECL)) {
xmlUnlinkNode(c);
xmlFreeNode(c);
}
c = next;
}
}
DICT_FREE(cur->name)
DICT_FREE(cur->SystemID)
DICT_FREE(cur->ExternalID)
/* TODO !!! */
if (cur->notations != NULL)
xmlFreeNotationTable((xmlNotationTablePtr) cur->notations);
if (cur->elements != NULL)
xmlFreeElementTable((xmlElementTablePtr) cur->elements);
if (cur->attributes != NULL)
xmlFreeAttributeTable((xmlAttributeTablePtr) cur->attributes);
if (cur->entities != NULL)
xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->entities);
if (cur->pentities != NULL)
xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->pentities);
xmlFree(cur);
}
/**
* xmlNewDoc:
* @version: xmlChar string giving the version of XML "1.0"
*
* Creates a new XML document
*
* Returns a new document
*/
xmlDocPtr
xmlNewDoc(const xmlChar *version) {
xmlDocPtr cur;
if (version == NULL)
version = (const xmlChar *) "1.0";
/*
* Allocate a new document and fill the fields.
*/
cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc));
if (cur == NULL) {
xmlTreeErrMemory("building doc");
return(NULL);
}
memset(cur, 0, sizeof(xmlDoc));
cur->type = XML_DOCUMENT_NODE;
cur->version = xmlStrdup(version);
if (cur->version == NULL) {
xmlTreeErrMemory("building doc");
xmlFree(cur);
return(NULL);
}
cur->standalone = -1;
cur->compression = -1; /* not initialized */
cur->doc = cur;
/*
* The in memory encoding is always UTF8
* This field will never change and would
* be obsolete if not for binary compatibility.
*/
cur->charset = XML_CHAR_ENCODING_UTF8;
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlFreeDoc:
* @cur: pointer to the document
*
* Free up all the structures used by a document, tree included.
*/
void
xmlFreeDoc(xmlDocPtr cur) {
xmlDtdPtr extSubset, intSubset;
xmlDictPtr dict = NULL;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeDoc : document == NULL\n");
#endif
return;
}
if (cur != NULL) dict = cur->dict;
if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
/*
* Do this before freeing the children list to avoid ID lookups
*/
if (cur->ids != NULL) xmlFreeIDTable((xmlIDTablePtr) cur->ids);
cur->ids = NULL;
if (cur->refs != NULL) xmlFreeRefTable((xmlRefTablePtr) cur->refs);
cur->refs = NULL;
extSubset = cur->extSubset;
intSubset = cur->intSubset;
if (intSubset == extSubset)
extSubset = NULL;
if (extSubset != NULL) {
xmlUnlinkNode((xmlNodePtr) cur->extSubset);
cur->extSubset = NULL;
xmlFreeDtd(extSubset);
}
if (intSubset != NULL) {
xmlUnlinkNode((xmlNodePtr) cur->intSubset);
cur->intSubset = NULL;
xmlFreeDtd(intSubset);
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);
DICT_FREE(cur->version)
DICT_FREE(cur->name)
DICT_FREE(cur->encoding)
DICT_FREE(cur->URL)
xmlFree(cur);
if (dict) xmlDictFree(dict);
}
/**
* xmlStringLenGetNodeList:
* @doc: the document
* @value: the value of the text
* @len: the length of the string value
*
* Parse the value string and build the node list associated. Should
* produce a flat tree with only TEXTs and ENTITY_REFs.
* Returns a pointer to the first child
*/
xmlNodePtr
xmlStringLenGetNodeList(xmlDocPtr doc, const xmlChar *value, int len) {
xmlNodePtr ret = NULL, last = NULL;
xmlNodePtr node;
xmlChar *val;
const xmlChar *cur = value, *end = cur + len;
const xmlChar *q;
xmlEntityPtr ent;
if (value == NULL) return(NULL);
q = cur;
while ((cur < end) && (*cur != 0)) {
if (cur[0] == '&') {
int charval = 0;
xmlChar tmp;
/*
* Save the current text.
*/
if (cur != q) {
if ((last != NULL) && (last->type == XML_TEXT_NODE)) {
xmlNodeAddContentLen(last, q, cur - q);
} else {
node = xmlNewDocTextLen(doc, q, cur - q);
if (node == NULL) return(ret);
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
}
q = cur;
if ((cur + 2 < end) && (cur[1] == '#') && (cur[2] == 'x')) {
cur += 3;
if (cur < end)
tmp = *cur;
else
tmp = 0;
while (tmp != ';') { /* Non input consuming loop */
if ((tmp >= '0') && (tmp <= '9'))
charval = charval * 16 + (tmp - '0');
else if ((tmp >= 'a') && (tmp <= 'f'))
charval = charval * 16 + (tmp - 'a') + 10;
else if ((tmp >= 'A') && (tmp <= 'F'))
charval = charval * 16 + (tmp - 'A') + 10;
else {
xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,
NULL);
charval = 0;
break;
}
cur++;
if (cur < end)
tmp = *cur;
else
tmp = 0;
}
if (tmp == ';')
cur++;
q = cur;
} else if ((cur + 1 < end) && (cur[1] == '#')) {
cur += 2;
if (cur < end)
tmp = *cur;
else
tmp = 0;
while (tmp != ';') { /* Non input consuming loops */
if ((tmp >= '0') && (tmp <= '9'))
charval = charval * 10 + (tmp - '0');
else {
xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,
NULL);
charval = 0;
break;
}
cur++;
if (cur < end)
tmp = *cur;
else
tmp = 0;
}
if (tmp == ';')
cur++;
q = cur;
} else {
/*
* Read the entity string
*/
cur++;
q = cur;
while ((cur < end) && (*cur != 0) && (*cur != ';')) cur++;
if ((cur >= end) || (*cur == 0)) {
xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY, (xmlNodePtr) doc,
(const char *) q);
return(ret);
}
if (cur != q) {
/*
* Predefined entities don't generate nodes
*/
val = xmlStrndup(q, cur - q);
ent = xmlGetDocEntity(doc, val);
if ((ent != NULL) &&
(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {
if (last == NULL) {
node = xmlNewDocText(doc, ent->content);
last = ret = node;
} else if (last->type != XML_TEXT_NODE) {
node = xmlNewDocText(doc, ent->content);
last = xmlAddNextSibling(last, node);
} else
xmlNodeAddContent(last, ent->content);
} else {
/*
* Create a new REFERENCE_REF node
*/
node = xmlNewReference(doc, val);
if (node == NULL) {
if (val != NULL) xmlFree(val);
return(ret);
}
else if ((ent != NULL) && (ent->children == NULL)) {
xmlNodePtr temp;
ent->children = xmlStringGetNodeList(doc,
(const xmlChar*)node->content);
ent->owner = 1;
temp = ent->children;
while (temp) {
temp->parent = (xmlNodePtr)ent;
temp = temp->next;
}
}
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
xmlFree(val);
}
cur++;
q = cur;
}
if (charval != 0) {
xmlChar buf[10];
int l;
l = xmlCopyCharMultiByte(buf, charval);
buf[l] = 0;
node = xmlNewDocText(doc, buf);
if (node != NULL) {
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
charval = 0;
}
} else
cur++;
}
if ((cur != q) || (ret == NULL)) {
/*
* Handle the last piece of text.
*/
if ((last != NULL) && (last->type == XML_TEXT_NODE)) {
xmlNodeAddContentLen(last, q, cur - q);
} else {
node = xmlNewDocTextLen(doc, q, cur - q);
if (node == NULL) return(ret);
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
}
return(ret);
}
/**
* xmlStringGetNodeList:
* @doc: the document
* @value: the value of the attribute
*
* Parse the value string and build the node list associated. Should
* produce a flat tree with only TEXTs and ENTITY_REFs.
* Returns a pointer to the first child
*/
xmlNodePtr
xmlStringGetNodeList(xmlDocPtr doc, const xmlChar *value) {
xmlNodePtr ret = NULL, last = NULL;
xmlNodePtr node;
xmlChar *val;
const xmlChar *cur = value;
const xmlChar *q;
xmlEntityPtr ent;
if (value == NULL) return(NULL);
q = cur;
while (*cur != 0) {
if (cur[0] == '&') {
int charval = 0;
xmlChar tmp;
/*
* Save the current text.
*/
if (cur != q) {
if ((last != NULL) && (last->type == XML_TEXT_NODE)) {
xmlNodeAddContentLen(last, q, cur - q);
} else {
node = xmlNewDocTextLen(doc, q, cur - q);
if (node == NULL) return(ret);
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
}
q = cur;
if ((cur[1] == '#') && (cur[2] == 'x')) {
cur += 3;
tmp = *cur;
while (tmp != ';') { /* Non input consuming loop */
if ((tmp >= '0') && (tmp <= '9'))
charval = charval * 16 + (tmp - '0');
else if ((tmp >= 'a') && (tmp <= 'f'))
charval = charval * 16 + (tmp - 'a') + 10;
else if ((tmp >= 'A') && (tmp <= 'F'))
charval = charval * 16 + (tmp - 'A') + 10;
else {
xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,
NULL);
charval = 0;
break;
}
cur++;
tmp = *cur;
}
if (tmp == ';')
cur++;
q = cur;
} else if (cur[1] == '#') {
cur += 2;
tmp = *cur;
while (tmp != ';') { /* Non input consuming loops */
if ((tmp >= '0') && (tmp <= '9'))
charval = charval * 10 + (tmp - '0');
else {
xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,
NULL);
charval = 0;
break;
}
cur++;
tmp = *cur;
}
if (tmp == ';')
cur++;
q = cur;
} else {
/*
* Read the entity string
*/
cur++;
q = cur;
while ((*cur != 0) && (*cur != ';')) cur++;
if (*cur == 0) {
xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY,
(xmlNodePtr) doc, (const char *) q);
return(ret);
}
if (cur != q) {
/*
* Predefined entities don't generate nodes
*/
val = xmlStrndup(q, cur - q);
ent = xmlGetDocEntity(doc, val);
if ((ent != NULL) &&
(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {
if (last == NULL) {
node = xmlNewDocText(doc, ent->content);
last = ret = node;
} else if (last->type != XML_TEXT_NODE) {
node = xmlNewDocText(doc, ent->content);
last = xmlAddNextSibling(last, node);
} else
xmlNodeAddContent(last, ent->content);
} else {
/*
* Create a new REFERENCE_REF node
*/
node = xmlNewReference(doc, val);
if (node == NULL) {
if (val != NULL) xmlFree(val);
return(ret);
}
else if ((ent != NULL) && (ent->children == NULL)) {
xmlNodePtr temp;
ent->children = xmlStringGetNodeList(doc,
(const xmlChar*)node->content);
ent->owner = 1;
temp = ent->children;
while (temp) {
temp->parent = (xmlNodePtr)ent;
temp = temp->next;
}
}
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
xmlFree(val);
}
cur++;
q = cur;
}
if (charval != 0) {
xmlChar buf[10];
int len;
len = xmlCopyCharMultiByte(buf, charval);
buf[len] = 0;
node = xmlNewDocText(doc, buf);
if (node != NULL) {
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
charval = 0;
}
} else
cur++;
}
if ((cur != q) || (ret == NULL)) {
/*
* Handle the last piece of text.
*/
if ((last != NULL) && (last->type == XML_TEXT_NODE)) {
xmlNodeAddContentLen(last, q, cur - q);
} else {
node = xmlNewDocTextLen(doc, q, cur - q);
if (node == NULL) return(ret);
if (last == NULL) {
last = ret = node;
} else {
last = xmlAddNextSibling(last, node);
}
}
}
return(ret);
}
/**
* xmlNodeListGetString:
* @doc: the document
* @list: a Node list
* @inLine: should we replace entity contents or show their external form
*
* Build the string equivalent to the text contained in the Node list
* made of TEXTs and ENTITY_REFs
*
* Returns a pointer to the string copy, the caller must free it with xmlFree().
*/
xmlChar *
xmlNodeListGetString(xmlDocPtr doc, xmlNodePtr list, int inLine)
{
xmlNodePtr node = list;
xmlChar *ret = NULL;
xmlEntityPtr ent;
if (list == NULL)
return (NULL);
while (node != NULL) {
if ((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)) {
if (inLine) {
ret = xmlStrcat(ret, node->content);
} else {
xmlChar *buffer;
buffer = xmlEncodeEntitiesReentrant(doc, node->content);
if (buffer != NULL) {
ret = xmlStrcat(ret, buffer);
xmlFree(buffer);
}
}
} else if (node->type == XML_ENTITY_REF_NODE) {
if (inLine) {
ent = xmlGetDocEntity(doc, node->name);
if (ent != NULL) {
xmlChar *buffer;
/* an entity content can be any "well balanced chunk",
* i.e. the result of the content [43] production:
* http://www.w3.org/TR/REC-xml#NT-content.
* So it can contain text, CDATA section or nested
* entity reference nodes (among others).
* -> we recursive call xmlNodeListGetString()
* which handles these types */
buffer = xmlNodeListGetString(doc, ent->children, 1);
if (buffer != NULL) {
ret = xmlStrcat(ret, buffer);
xmlFree(buffer);
}
} else {
ret = xmlStrcat(ret, node->content);
}
} else {
xmlChar buf[2];
buf[0] = '&';
buf[1] = 0;
ret = xmlStrncat(ret, buf, 1);
ret = xmlStrcat(ret, node->name);
buf[0] = ';';
buf[1] = 0;
ret = xmlStrncat(ret, buf, 1);
}
}
#if 0
else {
xmlGenericError(xmlGenericErrorContext,
"xmlGetNodeListString : invalid node type %d\n",
node->type);
}
#endif
node = node->next;
}
return (ret);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNodeListGetRawString:
* @doc: the document
* @list: a Node list
* @inLine: should we replace entity contents or show their external form
*
* Builds the string equivalent to the text contained in the Node list
* made of TEXTs and ENTITY_REFs, contrary to xmlNodeListGetString()
* this function doesn't do any character encoding handling.
*
* Returns a pointer to the string copy, the caller must free it with xmlFree().
*/
xmlChar *
xmlNodeListGetRawString(xmlDocPtr doc, xmlNodePtr list, int inLine)
{
xmlNodePtr node = list;
xmlChar *ret = NULL;
xmlEntityPtr ent;
if (list == NULL)
return (NULL);
while (node != NULL) {
if ((node->type == XML_TEXT_NODE) ||
(node->type == XML_CDATA_SECTION_NODE)) {
if (inLine) {
ret = xmlStrcat(ret, node->content);
} else {
xmlChar *buffer;
buffer = xmlEncodeSpecialChars(doc, node->content);
if (buffer != NULL) {
ret = xmlStrcat(ret, buffer);
xmlFree(buffer);
}
}
} else if (node->type == XML_ENTITY_REF_NODE) {
if (inLine) {
ent = xmlGetDocEntity(doc, node->name);
if (ent != NULL) {
xmlChar *buffer;
/* an entity content can be any "well balanced chunk",
* i.e. the result of the content [43] production:
* http://www.w3.org/TR/REC-xml#NT-content.
* So it can contain text, CDATA section or nested
* entity reference nodes (among others).
* -> we recursive call xmlNodeListGetRawString()
* which handles these types */
buffer =
xmlNodeListGetRawString(doc, ent->children, 1);
if (buffer != NULL) {
ret = xmlStrcat(ret, buffer);
xmlFree(buffer);
}
} else {
ret = xmlStrcat(ret, node->content);
}
} else {
xmlChar buf[2];
buf[0] = '&';
buf[1] = 0;
ret = xmlStrncat(ret, buf, 1);
ret = xmlStrcat(ret, node->name);
buf[0] = ';';
buf[1] = 0;
ret = xmlStrncat(ret, buf, 1);
}
}
#if 0
else {
xmlGenericError(xmlGenericErrorContext,
"xmlGetNodeListString : invalid node type %d\n",
node->type);
}
#endif
node = node->next;
}
return (ret);
}
#endif /* LIBXML_TREE_ENABLED */
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_HTML_ENABLED)
/**
* xmlNewProp:
* @node: the holding node
* @name: the name of the attribute
* @value: the value of the attribute
*
* Create a new property carried by a node.
* Returns a pointer to the attribute
*/
xmlAttrPtr
xmlNewProp(xmlNodePtr node, const xmlChar *name, const xmlChar *value) {
xmlAttrPtr cur;
xmlDocPtr doc = NULL;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewProp : name == NULL\n");
#endif
return(NULL);
}
if ((node != NULL) && (node->type != XML_ELEMENT_NODE))
return(NULL);
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlTreeErrMemory("building attribute");
return(NULL);
}
memset(cur, 0, sizeof(xmlAttr));
cur->type = XML_ATTRIBUTE_NODE;
cur->parent = node;
if (node != NULL) {
doc = node->doc;
cur->doc = doc;
}
cur->name = xmlStrdup(name);
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(doc, value);
cur->children = xmlStringGetNodeList(doc, buffer);
cur->last = NULL;
tmp = cur->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) cur;
tmp->doc = doc;
if (tmp->next == NULL)
cur->last = tmp;
tmp = tmp->next;
}
xmlFree(buffer);
}
/*
* Add it at the end to preserve parsing order ...
*/
if (node != NULL) {
if (node->properties == NULL) {
node->properties = cur;
} else {
xmlAttrPtr prev = node->properties;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
cur->prev = prev;
}
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNewNsProp:
* @node: the holding node
* @ns: the namespace
* @name: the name of the attribute
* @value: the value of the attribute
*
* Create a new property tagged with a namespace and carried by a node.
* Returns a pointer to the attribute
*/
xmlAttrPtr
xmlNewNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,
const xmlChar *value) {
xmlAttrPtr cur;
xmlDocPtr doc = NULL;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewNsProp : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlTreeErrMemory("building attribute");
return(NULL);
}
memset(cur, 0, sizeof(xmlAttr));
cur->type = XML_ATTRIBUTE_NODE;
cur->parent = node;
if (node != NULL) {
doc = node->doc;
cur->doc = doc;
}
cur->ns = ns;
cur->name = xmlStrdup(name);
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(doc, value);
cur->children = xmlStringGetNodeList(doc, buffer);
cur->last = NULL;
tmp = cur->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) cur;
if (tmp->next == NULL)
cur->last = tmp;
tmp = tmp->next;
}
xmlFree(buffer);
}
/*
* Add it at the end to preserve parsing order ...
*/
if (node != NULL) {
if (node->properties == NULL) {
node->properties = cur;
} else {
xmlAttrPtr prev = node->properties;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
cur->prev = prev;
}
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlNewNsPropEatName:
* @node: the holding node
* @ns: the namespace
* @name: the name of the attribute
* @value: the value of the attribute
*
* Create a new property tagged with a namespace and carried by a node.
* Returns a pointer to the attribute
*/
xmlAttrPtr
xmlNewNsPropEatName(xmlNodePtr node, xmlNsPtr ns, xmlChar *name,
const xmlChar *value) {
xmlAttrPtr cur;
xmlDocPtr doc = NULL;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewNsPropEatName : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlTreeErrMemory("building attribute");
return(NULL);
}
memset(cur, 0, sizeof(xmlAttr));
cur->type = XML_ATTRIBUTE_NODE;
cur->parent = node;
if (node != NULL) {
doc = node->doc;
cur->doc = doc;
}
cur->ns = ns;
cur->name = name;
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(doc, value);
cur->children = xmlStringGetNodeList(doc, buffer);
cur->last = NULL;
tmp = cur->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) cur;
if (tmp->next == NULL)
cur->last = tmp;
tmp = tmp->next;
}
xmlFree(buffer);
}
/*
* Add it at the end to preserve parsing order ...
*/
if (node != NULL) {
if (node->properties == NULL) {
node->properties = cur;
} else {
xmlAttrPtr prev = node->properties;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
cur->prev = prev;
}
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlNewDocProp:
* @doc: the document
* @name: the name of the attribute
* @value: the value of the attribute
*
* Create a new property carried by a document.
* Returns a pointer to the attribute
*/
xmlAttrPtr
xmlNewDocProp(xmlDocPtr doc, const xmlChar *name, const xmlChar *value) {
xmlAttrPtr cur;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewDocProp : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlTreeErrMemory("building attribute");
return(NULL);
}
memset(cur, 0, sizeof(xmlAttr));
cur->type = XML_ATTRIBUTE_NODE;
cur->name = xmlStrdup(name);
cur->doc = doc;
if (value != NULL) {
xmlNodePtr tmp;
cur->children = xmlStringGetNodeList(doc, value);
cur->last = NULL;
tmp = cur->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) cur;
if (tmp->next == NULL)
cur->last = tmp;
tmp = tmp->next;
}
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlFreePropList:
* @cur: the first property in the list
*
* Free a property and all its siblings, all the children are freed too.
*/
void
xmlFreePropList(xmlAttrPtr cur) {
xmlAttrPtr next;
if (cur == NULL) return;
while (cur != NULL) {
next = cur->next;
xmlFreeProp(cur);
cur = next;
}
}
/**
* xmlFreeProp:
* @cur: an attribute
*
* Free one attribute, all the content is freed too
*/
void
xmlFreeProp(xmlAttrPtr cur) {
xmlDictPtr dict = NULL;
if (cur == NULL) return;
if (cur->doc != NULL) dict = cur->doc->dict;
if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
/* Check for ID removal -> leading to invalid references ! */
if ((cur->parent != NULL) && (cur->parent->doc != NULL) &&
((cur->parent->doc->intSubset != NULL) ||
(cur->parent->doc->extSubset != NULL))) {
if (xmlIsID(cur->parent->doc, cur->parent, cur))
xmlRemoveID(cur->parent->doc, cur);
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
DICT_FREE(cur->name)
xmlFree(cur);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlRemoveProp:
* @cur: an attribute
*
* Unlink and free one attribute, all the content is freed too
* Note this doesn't work for namespace definition attributes
*
* Returns 0 if success and -1 in case of error.
*/
int
xmlRemoveProp(xmlAttrPtr cur) {
xmlAttrPtr tmp;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlRemoveProp : cur == NULL\n");
#endif
return(-1);
}
if (cur->parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlRemoveProp : cur->parent == NULL\n");
#endif
return(-1);
}
tmp = cur->parent->properties;
if (tmp == cur) {
cur->parent->properties = cur->next;
xmlFreeProp(cur);
return(0);
}
while (tmp != NULL) {
if (tmp->next == cur) {
tmp->next = cur->next;
if (tmp->next != NULL)
tmp->next->prev = tmp;
xmlFreeProp(cur);
return(0);
}
tmp = tmp->next;
}
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlRemoveProp : attribute not owned by its node\n");
#endif
return(-1);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNewPI:
* @name: the processing instruction name
* @content: the PI content
*
* Creation of a processing instruction element.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewPI(const xmlChar *name, const xmlChar *content) {
xmlNodePtr cur;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewPI : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building PI");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_PI_NODE;
cur->name = xmlStrdup(name);
if (content != NULL) {
cur->content = xmlStrdup(content);
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlNewNode:
* @ns: namespace if any
* @name: the node name
*
* Creation of a new node element. @ns is optional (NULL).
*
* Returns a pointer to the new node object. Uses xmlStrdup() to make
* copy of @name.
*/
xmlNodePtr
xmlNewNode(xmlNsPtr ns, const xmlChar *name) {
xmlNodePtr cur;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewNode : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building node");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_ELEMENT_NODE;
cur->name = xmlStrdup(name);
cur->ns = ns;
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewNodeEatName:
* @ns: namespace if any
* @name: the node name
*
* Creation of a new node element. @ns is optional (NULL).
*
* Returns a pointer to the new node object, with pointer @name as
* new node's name. Use xmlNewNode() if a copy of @name string is
* is needed as new node's name.
*/
xmlNodePtr
xmlNewNodeEatName(xmlNsPtr ns, xmlChar *name) {
xmlNodePtr cur;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewNode : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building node");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_ELEMENT_NODE;
cur->name = name;
cur->ns = ns;
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
return(cur);
}
/**
* xmlNewDocNode:
* @doc: the document
* @ns: namespace if any
* @name: the node name
* @content: the XML text content if any
*
* Creation of a new node element within a document. @ns and @content
* are optional (NULL).
* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities
* references, but XML special chars need to be escaped first by using
* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't
* need entities support.
*
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocNode(xmlDocPtr doc, xmlNsPtr ns,
const xmlChar *name, const xmlChar *content) {
xmlNodePtr cur;
cur = xmlNewNode(ns, name);
if (cur != NULL) {
cur->doc = doc;
if (content != NULL) {
cur->children = xmlStringGetNodeList(doc, content);
UPDATE_LAST_CHILD_AND_PARENT(cur)
}
}
return(cur);
}
/**
* xmlNewDocNodeEatName:
* @doc: the document
* @ns: namespace if any
* @name: the node name
* @content: the XML text content if any
*
* Creation of a new node element within a document. @ns and @content
* are optional (NULL).
* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities
* references, but XML special chars need to be escaped first by using
* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't
* need entities support.
*
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocNodeEatName(xmlDocPtr doc, xmlNsPtr ns,
xmlChar *name, const xmlChar *content) {
xmlNodePtr cur;
cur = xmlNewNodeEatName(ns, name);
if (cur != NULL) {
cur->doc = doc;
if (content != NULL) {
cur->children = xmlStringGetNodeList(doc, content);
UPDATE_LAST_CHILD_AND_PARENT(cur)
}
}
return(cur);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNewDocRawNode:
* @doc: the document
* @ns: namespace if any
* @name: the node name
* @content: the text content if any
*
* Creation of a new node element within a document. @ns and @content
* are optional (NULL).
*
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocRawNode(xmlDocPtr doc, xmlNsPtr ns,
const xmlChar *name, const xmlChar *content) {
xmlNodePtr cur;
cur = xmlNewNode(ns, name);
if (cur != NULL) {
cur->doc = doc;
if (content != NULL) {
cur->children = xmlNewDocText(doc, content);
UPDATE_LAST_CHILD_AND_PARENT(cur)
}
}
return(cur);
}
/**
* xmlNewDocFragment:
* @doc: the document owning the fragment
*
* Creation of a new Fragment node.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocFragment(xmlDocPtr doc) {
xmlNodePtr cur;
/*
* Allocate a new DocumentFragment node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building fragment");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_DOCUMENT_FRAG_NODE;
cur->doc = doc;
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNewText:
* @content: the text content
*
* Creation of a new text node.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewText(const xmlChar *content) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building text");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_TEXT_NODE;
cur->name = xmlStringText;
if (content != NULL) {
cur->content = xmlStrdup(content);
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNewTextChild:
* @parent: the parent node
* @ns: a namespace if any
* @name: the name of the child
* @content: the text content of the child if any.
*
* Creation of a new child element, added at the end of @parent children list.
* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly
* created element inherits the namespace of @parent. If @content is non NULL,
* a child TEXT node will be created containing the string @content.
* NOTE: Use xmlNewChild() if @content will contain entities that need to be
* preserved. Use this function, xmlNewTextChild(), if you need to ensure that
* reserved XML chars that might appear in @content, such as the ampersand,
* greater-than or less-than signs, are automatically replaced by their XML
* escaped entity representations.
*
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewTextChild(xmlNodePtr parent, xmlNsPtr ns,
const xmlChar *name, const xmlChar *content) {
xmlNodePtr cur, prev;
if (parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewTextChild : parent == NULL\n");
#endif
return(NULL);
}
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewTextChild : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new node
*/
if (parent->type == XML_ELEMENT_NODE) {
if (ns == NULL)
cur = xmlNewDocRawNode(parent->doc, parent->ns, name, content);
else
cur = xmlNewDocRawNode(parent->doc, ns, name, content);
} else if ((parent->type == XML_DOCUMENT_NODE) ||
(parent->type == XML_HTML_DOCUMENT_NODE)) {
if (ns == NULL)
cur = xmlNewDocRawNode((xmlDocPtr) parent, NULL, name, content);
else
cur = xmlNewDocRawNode((xmlDocPtr) parent, ns, name, content);
} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {
cur = xmlNewDocRawNode( parent->doc, ns, name, content);
} else {
return(NULL);
}
if (cur == NULL) return(NULL);
/*
* add the new element at the end of the children list.
*/
cur->type = XML_ELEMENT_NODE;
cur->parent = parent;
cur->doc = parent->doc;
if (parent->children == NULL) {
parent->children = cur;
parent->last = cur;
} else {
prev = parent->last;
prev->next = cur;
cur->prev = prev;
parent->last = cur;
}
return(cur);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNewCharRef:
* @doc: the document
* @name: the char ref string, starting with # or "&# ... ;"
*
* Creation of a new character reference node.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewCharRef(xmlDocPtr doc, const xmlChar *name) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building character reference");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_ENTITY_REF_NODE;
cur->doc = doc;
if (name[0] == '&') {
int len;
name++;
len = xmlStrlen(name);
if (name[len - 1] == ';')
cur->name = xmlStrndup(name, len - 1);
else
cur->name = xmlStrndup(name, len);
} else
cur->name = xmlStrdup(name);
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewReference:
* @doc: the document
* @name: the reference name, or the reference string with & and ;
*
* Creation of a new reference node.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewReference(xmlDocPtr doc, const xmlChar *name) {
xmlNodePtr cur;
xmlEntityPtr ent;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building reference");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_ENTITY_REF_NODE;
cur->doc = doc;
if (name[0] == '&') {
int len;
name++;
len = xmlStrlen(name);
if (name[len - 1] == ';')
cur->name = xmlStrndup(name, len - 1);
else
cur->name = xmlStrndup(name, len);
} else
cur->name = xmlStrdup(name);
ent = xmlGetDocEntity(doc, cur->name);
if (ent != NULL) {
cur->content = ent->content;
/*
* The parent pointer in entity is a DTD pointer and thus is NOT
* updated. Not sure if this is 100% correct.
* -George
*/
cur->children = (xmlNodePtr) ent;
cur->last = (xmlNodePtr) ent;
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewDocText:
* @doc: the document
* @content: the text content
*
* Creation of a new text node within a document.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocText(xmlDocPtr doc, const xmlChar *content) {
xmlNodePtr cur;
cur = xmlNewText(content);
if (cur != NULL) cur->doc = doc;
return(cur);
}
/**
* xmlNewTextLen:
* @content: the text content
* @len: the text len.
*
* Creation of a new text node with an extra parameter for the content's length
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewTextLen(const xmlChar *content, int len) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building text");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_TEXT_NODE;
cur->name = xmlStringText;
if (content != NULL) {
cur->content = xmlStrndup(content, len);
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewDocTextLen:
* @doc: the document
* @content: the text content
* @len: the text len.
*
* Creation of a new text node with an extra content length parameter. The
* text node pertain to a given document.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocTextLen(xmlDocPtr doc, const xmlChar *content, int len) {
xmlNodePtr cur;
cur = xmlNewTextLen(content, len);
if (cur != NULL) cur->doc = doc;
return(cur);
}
/**
* xmlNewComment:
* @content: the comment content
*
* Creation of a new node containing a comment.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewComment(const xmlChar *content) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building comment");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_COMMENT_NODE;
cur->name = xmlStringComment;
if (content != NULL) {
cur->content = xmlStrdup(content);
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewCDataBlock:
* @doc: the document
* @content: the CDATA block content content
* @len: the length of the block
*
* Creation of a new node containing a CDATA block.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewCDataBlock(xmlDocPtr doc, const xmlChar *content, int len) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (cur == NULL) {
xmlTreeErrMemory("building CDATA");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_CDATA_SECTION_NODE;
cur->doc = doc;
if (content != NULL) {
cur->content = xmlStrndup(content, len);
}
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue(cur);
return(cur);
}
/**
* xmlNewDocComment:
* @doc: the document
* @content: the comment content
*
* Creation of a new node containing a comment within a document.
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocComment(xmlDocPtr doc, const xmlChar *content) {
xmlNodePtr cur;
cur = xmlNewComment(content);
if (cur != NULL) cur->doc = doc;
return(cur);
}
/**
* xmlSetTreeDoc:
* @tree: the top element
* @doc: the document
*
* update all nodes under the tree to point to the right document
*/
void
xmlSetTreeDoc(xmlNodePtr tree, xmlDocPtr doc) {
xmlAttrPtr prop;
if (tree == NULL)
return;
if (tree->doc != doc) {
if(tree->type == XML_ELEMENT_NODE) {
prop = tree->properties;
while (prop != NULL) {
prop->doc = doc;
xmlSetListDoc(prop->children, doc);
prop = prop->next;
}
}
if (tree->children != NULL)
xmlSetListDoc(tree->children, doc);
tree->doc = doc;
}
}
/**
* xmlSetListDoc:
* @list: the first element
* @doc: the document
*
* update all nodes in the list to point to the right document
*/
void
xmlSetListDoc(xmlNodePtr list, xmlDocPtr doc) {
xmlNodePtr cur;
if (list == NULL)
return;
cur = list;
while (cur != NULL) {
if (cur->doc != doc)
xmlSetTreeDoc(cur, doc);
cur = cur->next;
}
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/**
* xmlNewChild:
* @parent: the parent node
* @ns: a namespace if any
* @name: the name of the child
* @content: the XML content of the child if any.
*
* Creation of a new child element, added at the end of @parent children list.
* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly
* created element inherits the namespace of @parent. If @content is non NULL,
* a child list containing the TEXTs and ENTITY_REFs node will be created.
* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
* references. XML special chars must be escaped first by using
* xmlEncodeEntitiesReentrant(), or xmlNewTextChild() should be used.
*
* Returns a pointer to the new node object.
*/
xmlNodePtr
xmlNewChild(xmlNodePtr parent, xmlNsPtr ns,
const xmlChar *name, const xmlChar *content) {
xmlNodePtr cur, prev;
if (parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewChild : parent == NULL\n");
#endif
return(NULL);
}
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewChild : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new node
*/
if (parent->type == XML_ELEMENT_NODE) {
if (ns == NULL)
cur = xmlNewDocNode(parent->doc, parent->ns, name, content);
else
cur = xmlNewDocNode(parent->doc, ns, name, content);
} else if ((parent->type == XML_DOCUMENT_NODE) ||
(parent->type == XML_HTML_DOCUMENT_NODE)) {
if (ns == NULL)
cur = xmlNewDocNode((xmlDocPtr) parent, NULL, name, content);
else
cur = xmlNewDocNode((xmlDocPtr) parent, ns, name, content);
} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {
cur = xmlNewDocNode( parent->doc, ns, name, content);
} else {
return(NULL);
}
if (cur == NULL) return(NULL);
/*
* add the new element at the end of the children list.
*/
cur->type = XML_ELEMENT_NODE;
cur->parent = parent;
cur->doc = parent->doc;
if (parent->children == NULL) {
parent->children = cur;
parent->last = cur;
} else {
prev = parent->last;
prev->next = cur;
cur->prev = prev;
parent->last = cur;
}
return(cur);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlAddNextSibling:
* @cur: the child node
* @elem: the new node
*
* Add a new node @elem as the next sibling of @cur
* If the new node was already inserted in a document it is
* first unlinked from its existing context.
* As a result of text merging @elem may be freed.
* If the new node is ATTRIBUTE, it is added into properties instead of children.
* If there is an attribute with equal name, it is first destroyed.
*
* Returns the new node or NULL in case of error.
*/
xmlNodePtr
xmlAddNextSibling(xmlNodePtr cur, xmlNodePtr elem) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddNextSibling : cur == NULL\n");
#endif
return(NULL);
}
if (elem == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddNextSibling : elem == NULL\n");
#endif
return(NULL);
}
xmlUnlinkNode(elem);
if (elem->type == XML_TEXT_NODE) {
if (cur->type == XML_TEXT_NODE) {
xmlNodeAddContent(cur, elem->content);
xmlFreeNode(elem);
return(cur);
}
if ((cur->next != NULL) && (cur->next->type == XML_TEXT_NODE) &&
(cur->name == cur->next->name)) {
xmlChar *tmp;
tmp = xmlStrdup(elem->content);
tmp = xmlStrcat(tmp, cur->next->content);
xmlNodeSetContent(cur->next, tmp);
xmlFree(tmp);
xmlFreeNode(elem);
return(cur->next);
}
} else if (elem->type == XML_ATTRIBUTE_NODE) {
/* check if an attribute with the same name exists */
xmlAttrPtr attr;
if (elem->ns == NULL)
attr = xmlHasProp(cur->parent, elem->name);
else
attr = xmlHasNsProp(cur->parent, elem->name, elem->ns->href);
if ((attr != NULL) && (attr != (xmlAttrPtr) elem)) {
/* different instance, destroy it (attributes must be unique) */
xmlFreeProp(attr);
}
}
if (elem->doc != cur->doc) {
xmlSetTreeDoc(elem, cur->doc);
}
elem->parent = cur->parent;
elem->prev = cur;
elem->next = cur->next;
cur->next = elem;
if (elem->next != NULL)
elem->next->prev = elem;
if ((elem->parent != NULL) && (elem->parent->last == cur) && (elem->type != XML_ATTRIBUTE_NODE))
elem->parent->last = elem;
return(elem);
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_HTML_ENABLED)
/**
* xmlAddPrevSibling:
* @cur: the child node
* @elem: the new node
*
* Add a new node @elem as the previous sibling of @cur
* merging adjacent TEXT nodes (@elem may be freed)
* If the new node was already inserted in a document it is
* first unlinked from its existing context.
* If the new node is ATTRIBUTE, it is added into properties instead of children.
* If there is an attribute with equal name, it is first destroyed.
*
* Returns the new node or NULL in case of error.
*/
xmlNodePtr
xmlAddPrevSibling(xmlNodePtr cur, xmlNodePtr elem) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddPrevSibling : cur == NULL\n");
#endif
return(NULL);
}
if (elem == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddPrevSibling : elem == NULL\n");
#endif
return(NULL);
}
xmlUnlinkNode(elem);
if (elem->type == XML_TEXT_NODE) {
if (cur->type == XML_TEXT_NODE) {
xmlChar *tmp;
tmp = xmlStrdup(elem->content);
tmp = xmlStrcat(tmp, cur->content);
xmlNodeSetContent(cur, tmp);
xmlFree(tmp);
xmlFreeNode(elem);
return(cur);
}
if ((cur->prev != NULL) && (cur->prev->type == XML_TEXT_NODE) &&
(cur->name == cur->prev->name)) {
xmlNodeAddContent(cur->prev, elem->content);
xmlFreeNode(elem);
return(cur->prev);
}
} else if (elem->type == XML_ATTRIBUTE_NODE) {
/* check if an attribute with the same name exists */
xmlAttrPtr attr;
if (elem->ns == NULL)
attr = xmlHasProp(cur->parent, elem->name);
else
attr = xmlHasNsProp(cur->parent, elem->name, elem->ns->href);
if ((attr != NULL) && (attr != (xmlAttrPtr) elem)) {
/* different instance, destroy it (attributes must be unique) */
xmlFreeProp(attr);
}
}
if (elem->doc != cur->doc) {
xmlSetTreeDoc(elem, cur->doc);
}
elem->parent = cur->parent;
elem->next = cur;
elem->prev = cur->prev;
cur->prev = elem;
if (elem->prev != NULL)
elem->prev->next = elem;
if (elem->parent != NULL) {
if (elem->type == XML_ATTRIBUTE_NODE) {
if (elem->parent->properties == (xmlAttrPtr) cur) {
elem->parent->properties = (xmlAttrPtr) elem;
}
} else {
if (elem->parent->children == cur) {
elem->parent->children = elem;
}
}
}
return(elem);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlAddSibling:
* @cur: the child node
* @elem: the new node
*
* Add a new element @elem to the list of siblings of @cur
* merging adjacent TEXT nodes (@elem may be freed)
* If the new element was already inserted in a document it is
* first unlinked from its existing context.
*
* Returns the new element or NULL in case of error.
*/
xmlNodePtr
xmlAddSibling(xmlNodePtr cur, xmlNodePtr elem) {
xmlNodePtr parent;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddSibling : cur == NULL\n");
#endif
return(NULL);
}
if (elem == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddSibling : elem == NULL\n");
#endif
return(NULL);
}
/*
* Constant time is we can rely on the ->parent->last to find
* the last sibling.
*/
if ((cur->parent != NULL) &&
(cur->parent->children != NULL) &&
(cur->parent->last != NULL) &&
(cur->parent->last->next == NULL)) {
cur = cur->parent->last;
} else {
while (cur->next != NULL) cur = cur->next;
}
xmlUnlinkNode(elem);
if ((cur->type == XML_TEXT_NODE) && (elem->type == XML_TEXT_NODE) &&
(cur->name == elem->name)) {
xmlNodeAddContent(cur, elem->content);
xmlFreeNode(elem);
return(cur);
}
if (elem->doc != cur->doc) {
xmlSetTreeDoc(elem, cur->doc);
}
parent = cur->parent;
elem->prev = cur;
elem->next = NULL;
elem->parent = parent;
cur->next = elem;
if (parent != NULL)
parent->last = elem;
return(elem);
}
/**
* xmlAddChildList:
* @parent: the parent node
* @cur: the first node in the list
*
* Add a list of node at the end of the child list of the parent
* merging adjacent TEXT nodes (@cur may be freed)
*
* Returns the last child or NULL in case of error.
*/
xmlNodePtr
xmlAddChildList(xmlNodePtr parent, xmlNodePtr cur) {
xmlNodePtr prev;
if (parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddChildList : parent == NULL\n");
#endif
return(NULL);
}
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddChildList : child == NULL\n");
#endif
return(NULL);
}
if ((cur->doc != NULL) && (parent->doc != NULL) &&
(cur->doc != parent->doc)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"Elements moved to a different document\n");
#endif
}
/*
* add the first element at the end of the children list.
*/
if (parent->children == NULL) {
parent->children = cur;
} else {
/*
* If cur and parent->last both are TEXT nodes, then merge them.
*/
if ((cur->type == XML_TEXT_NODE) &&
(parent->last->type == XML_TEXT_NODE) &&
(cur->name == parent->last->name)) {
xmlNodeAddContent(parent->last, cur->content);
/*
* if it's the only child, nothing more to be done.
*/
if (cur->next == NULL) {
xmlFreeNode(cur);
return(parent->last);
}
prev = cur;
cur = cur->next;
xmlFreeNode(prev);
}
prev = parent->last;
prev->next = cur;
cur->prev = prev;
}
while (cur->next != NULL) {
cur->parent = parent;
if (cur->doc != parent->doc) {
xmlSetTreeDoc(cur, parent->doc);
}
cur = cur->next;
}
cur->parent = parent;
cur->doc = parent->doc; /* the parent may not be linked to a doc ! */
parent->last = cur;
return(cur);
}
/**
* xmlAddChild:
* @parent: the parent node
* @cur: the child node
*
* Add a new node to @parent, at the end of the child (or property) list
* merging adjacent TEXT nodes (in which case @cur is freed)
* If the new node is ATTRIBUTE, it is added into properties instead of children.
* If there is an attribute with equal name, it is first destroyed.
*
* Returns the child or NULL in case of error.
*/
xmlNodePtr
xmlAddChild(xmlNodePtr parent, xmlNodePtr cur) {
xmlNodePtr prev;
if (parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddChild : parent == NULL\n");
#endif
return(NULL);
}
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddChild : child == NULL\n");
#endif
return(NULL);
}
/*
* If cur is a TEXT node, merge its content with adjacent TEXT nodes
* cur is then freed.
*/
if (cur->type == XML_TEXT_NODE) {
if ((parent->type == XML_TEXT_NODE) &&
(parent->content != NULL) &&
(parent->name == cur->name) &&
(parent != cur)) {
xmlNodeAddContent(parent, cur->content);
xmlFreeNode(cur);
return(parent);
}
if ((parent->last != NULL) && (parent->last->type == XML_TEXT_NODE) &&
(parent->last->name == cur->name) &&
(parent->last != cur)) {
xmlNodeAddContent(parent->last, cur->content);
xmlFreeNode(cur);
return(parent->last);
}
}
/*
* add the new element at the end of the children list.
*/
prev = cur->parent;
cur->parent = parent;
if (cur->doc != parent->doc) {
xmlSetTreeDoc(cur, parent->doc);
}
/* this check prevents a loop on tree-traversions if a developer
* tries to add a node to its parent multiple times
*/
if (prev == parent)
return(cur);
/*
* Coalescing
*/
if ((parent->type == XML_TEXT_NODE) &&
(parent->content != NULL) &&
(parent != cur)) {
xmlNodeAddContent(parent, cur->content);
xmlFreeNode(cur);
return(parent);
}
if (cur->type == XML_ATTRIBUTE_NODE) {
if (parent->properties == NULL) {
parent->properties = (xmlAttrPtr) cur;
} else {
/* check if an attribute with the same name exists */
xmlAttrPtr lastattr;
if (cur->ns == NULL)
lastattr = xmlHasProp(parent, cur->name);
else
lastattr = xmlHasNsProp(parent, cur->name, cur->ns->href);
if ((lastattr != NULL) && (lastattr != (xmlAttrPtr) cur)) {
/* different instance, destroy it (attributes must be unique) */
xmlFreeProp(lastattr);
}
/* find the end */
lastattr = parent->properties;
while (lastattr->next != NULL) {
lastattr = lastattr->next;
}
lastattr->next = (xmlAttrPtr) cur;
((xmlAttrPtr) cur)->prev = lastattr;
}
} else {
if (parent->children == NULL) {
parent->children = cur;
parent->last = cur;
} else {
prev = parent->last;
prev->next = cur;
cur->prev = prev;
parent->last = cur;
}
}
return(cur);
}
/**
* xmlGetLastChild:
* @parent: the parent node
*
* Search the last child of a node.
* Returns the last child or NULL if none.
*/
xmlNodePtr
xmlGetLastChild(xmlNodePtr parent) {
if (parent == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlGetLastChild : parent == NULL\n");
#endif
return(NULL);
}
return(parent->last);
}
/**
* xmlFreeNodeList:
* @cur: the first node in the list
*
* Free a node and all its siblings, this is a recursive behaviour, all
* the children are freed too.
*/
void
xmlFreeNodeList(xmlNodePtr cur) {
xmlNodePtr next;
xmlDictPtr dict = NULL;
if (cur == NULL) return;
if (cur->type == XML_NAMESPACE_DECL) {
xmlFreeNsList((xmlNsPtr) cur);
return;
}
if ((cur->type == XML_DOCUMENT_NODE) ||
#ifdef LIBXML_DOCB_ENABLED
(cur->type == XML_DOCB_DOCUMENT_NODE) ||
#endif
(cur->type == XML_HTML_DOCUMENT_NODE)) {
xmlFreeDoc((xmlDocPtr) cur);
return;
}
if (cur->doc != NULL) dict = cur->doc->dict;
while (cur != NULL) {
next = cur->next;
if (cur->type != XML_DTD_NODE) {
if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
xmlDeregisterNodeDefaultValue(cur);
if ((cur->children != NULL) &&
(cur->type != XML_ENTITY_REF_NODE))
xmlFreeNodeList(cur->children);
if (((cur->type == XML_ELEMENT_NODE) ||
(cur->type == XML_XINCLUDE_START) ||
(cur->type == XML_XINCLUDE_END)) &&
(cur->properties != NULL))
xmlFreePropList(cur->properties);
if ((cur->type != XML_ELEMENT_NODE) &&
(cur->type != XML_XINCLUDE_START) &&
(cur->type != XML_XINCLUDE_END) &&
(cur->type != XML_ENTITY_REF_NODE)) {
DICT_FREE(cur->content)
}
if (((cur->type == XML_ELEMENT_NODE) ||
(cur->type == XML_XINCLUDE_START) ||
(cur->type == XML_XINCLUDE_END)) &&
(cur->nsDef != NULL))
xmlFreeNsList(cur->nsDef);
/*
* When a node is a text node or a comment, it uses a global static
* variable for the name of the node.
* Otherwise the node name might come from the document's
* dictionnary
*/
if ((cur->name != NULL) &&
(cur->type != XML_TEXT_NODE) &&
(cur->type != XML_COMMENT_NODE))
DICT_FREE(cur->name)
xmlFree(cur);
}
cur = next;
}
}
/**
* xmlFreeNode:
* @cur: the node
*
* Free a node, this is a recursive behaviour, all the children are freed too.
* This doesn't unlink the child from the list, use xmlUnlinkNode() first.
*/
void
xmlFreeNode(xmlNodePtr cur) {
xmlDictPtr dict = NULL;
if (cur == NULL) return;
/* use xmlFreeDtd for DTD nodes */
if (cur->type == XML_DTD_NODE) {
xmlFreeDtd((xmlDtdPtr) cur);
return;
}
if (cur->type == XML_NAMESPACE_DECL) {
xmlFreeNs((xmlNsPtr) cur);
return;
}
if (cur->type == XML_ATTRIBUTE_NODE) {
xmlFreeProp((xmlAttrPtr) cur);
return;
}
if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
xmlDeregisterNodeDefaultValue(cur);
if (cur->doc != NULL) dict = cur->doc->dict;
if ((cur->children != NULL) &&
(cur->type != XML_ENTITY_REF_NODE))
xmlFreeNodeList(cur->children);
if (((cur->type == XML_ELEMENT_NODE) ||
(cur->type == XML_XINCLUDE_START) ||
(cur->type == XML_XINCLUDE_END)) &&
(cur->properties != NULL))
xmlFreePropList(cur->properties);
if ((cur->type != XML_ELEMENT_NODE) &&
(cur->content != NULL) &&
(cur->type != XML_ENTITY_REF_NODE) &&
(cur->type != XML_XINCLUDE_END) &&
(cur->type != XML_XINCLUDE_START)) {
DICT_FREE(cur->content)
}
/*
* When a node is a text node or a comment, it uses a global static
* variable for the name of the node.
* Otherwise the node name might come from the document's dictionnary
*/
if ((cur->name != NULL) &&
(cur->type != XML_TEXT_NODE) &&
(cur->type != XML_COMMENT_NODE))
DICT_FREE(cur->name)
if (((cur->type == XML_ELEMENT_NODE) ||
(cur->type == XML_XINCLUDE_START) ||
(cur->type == XML_XINCLUDE_END)) &&
(cur->nsDef != NULL))
xmlFreeNsList(cur->nsDef);
xmlFree(cur);
}
/**
* xmlUnlinkNode:
* @cur: the node
*
* Unlink a node from it's current context, the node is not freed
*/
void
xmlUnlinkNode(xmlNodePtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlUnlinkNode : node == NULL\n");
#endif
return;
}
if (cur->type == XML_DTD_NODE) {
xmlDocPtr doc;
doc = cur->doc;
if (doc != NULL) {
if (doc->intSubset == (xmlDtdPtr) cur)
doc->intSubset = NULL;
if (doc->extSubset == (xmlDtdPtr) cur)
doc->extSubset = NULL;
}
}
if (cur->parent != NULL) {
xmlNodePtr parent;
parent = cur->parent;
if (cur->type == XML_ATTRIBUTE_NODE) {
if (parent->properties == (xmlAttrPtr) cur)
parent->properties = ((xmlAttrPtr) cur)->next;
} else {
if (parent->children == cur)
parent->children = cur->next;
if (parent->last == cur)
parent->last = cur->prev;
}
cur->parent = NULL;
}
if (cur->next != NULL)
cur->next->prev = cur->prev;
if (cur->prev != NULL)
cur->prev->next = cur->next;
cur->next = cur->prev = NULL;
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)
/**
* xmlReplaceNode:
* @old: the old node
* @cur: the node
*
* Unlink the old node from its current context, prune the new one
* at the same place. If @cur was already inserted in a document it is
* first unlinked from its existing context.
*
* Returns the @old node
*/
xmlNodePtr
xmlReplaceNode(xmlNodePtr old, xmlNodePtr cur) {
if (old == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlReplaceNode : old == NULL\n");
#endif
return(NULL);
}
if (cur == NULL) {
xmlUnlinkNode(old);
return(old);
}
if (cur == old) {
return(old);
}
if ((old->type==XML_ATTRIBUTE_NODE) && (cur->type!=XML_ATTRIBUTE_NODE)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlReplaceNode : Trying to replace attribute node with other node type\n");
#endif
return(old);
}
if ((cur->type==XML_ATTRIBUTE_NODE) && (old->type!=XML_ATTRIBUTE_NODE)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlReplaceNode : Trying to replace a non-attribute node with attribute node\n");
#endif
return(old);
}
xmlUnlinkNode(cur);
cur->doc = old->doc;
cur->parent = old->parent;
cur->next = old->next;
if (cur->next != NULL)
cur->next->prev = cur;
cur->prev = old->prev;
if (cur->prev != NULL)
cur->prev->next = cur;
if (cur->parent != NULL) {
if (cur->type == XML_ATTRIBUTE_NODE) {
if (cur->parent->properties == (xmlAttrPtr)old)
cur->parent->properties = ((xmlAttrPtr) cur);
} else {
if (cur->parent->children == old)
cur->parent->children = cur;
if (cur->parent->last == old)
cur->parent->last = cur;
}
}
old->next = old->prev = NULL;
old->parent = NULL;
return(old);
}
#endif /* LIBXML_TREE_ENABLED */
/************************************************************************
* *
* Copy operations *
* *
************************************************************************/
/**
* xmlCopyNamespace:
* @cur: the namespace
*
* Do a copy of the namespace.
*
* Returns: a new #xmlNsPtr, or NULL in case of error.
*/
xmlNsPtr
xmlCopyNamespace(xmlNsPtr cur) {
xmlNsPtr ret;
if (cur == NULL) return(NULL);
switch (cur->type) {
case XML_LOCAL_NAMESPACE:
ret = xmlNewNs(NULL, cur->href, cur->prefix);
break;
default:
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlCopyNamespace: invalid type %d\n", cur->type);
#endif
return(NULL);
}
return(ret);
}
/**
* xmlCopyNamespaceList:
* @cur: the first namespace
*
* Do a copy of an namespace list.
*
* Returns: a new #xmlNsPtr, or NULL in case of error.
*/
xmlNsPtr
xmlCopyNamespaceList(xmlNsPtr cur) {
xmlNsPtr ret = NULL;
xmlNsPtr p = NULL,q;
while (cur != NULL) {
q = xmlCopyNamespace(cur);
if (p == NULL) {
ret = p = q;
} else {
p->next = q;
p = q;
}
cur = cur->next;
}
return(ret);
}
static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent);
/**
* xmlCopyProp:
* @target: the element where the attribute will be grafted
* @cur: the attribute
*
* Do a copy of the attribute.
*
* Returns: a new #xmlAttrPtr, or NULL in case of error.
*/
xmlAttrPtr
xmlCopyProp(xmlNodePtr target, xmlAttrPtr cur) {
xmlAttrPtr ret;
if (cur == NULL) return(NULL);
if (target != NULL)
ret = xmlNewDocProp(target->doc, cur->name, NULL);
else if (cur->parent != NULL)
ret = xmlNewDocProp(cur->parent->doc, cur->name, NULL);
else if (cur->children != NULL)
ret = xmlNewDocProp(cur->children->doc, cur->name, NULL);
else
ret = xmlNewDocProp(NULL, cur->name, NULL);
if (ret == NULL) return(NULL);
ret->parent = target;
if ((cur->ns != NULL) && (target != NULL)) {
xmlNsPtr ns;
ns = xmlSearchNs(target->doc, target, cur->ns->prefix);
if (ns == NULL) {
/*
* Humm, we are copying an element whose namespace is defined
* out of the new tree scope. Search it in the original tree
* and add it at the top of the new tree
*/
ns = xmlSearchNs(cur->doc, cur->parent, cur->ns->prefix);
if (ns != NULL) {
xmlNodePtr root = target;
xmlNodePtr pred = NULL;
while (root->parent != NULL) {
pred = root;
root = root->parent;
}
if (root == (xmlNodePtr) target->doc) {
/* correct possibly cycling above the document elt */
root = pred;
}
ret->ns = xmlNewNs(root, ns->href, ns->prefix);
}
} else {
/*
* we have to find something appropriate here since
* we cant be sure, that the namespce we found is identified
* by the prefix
*/
if (xmlStrEqual(ns->href, cur->ns->href)) {
/* this is the nice case */
ret->ns = ns;
} else {
/*
* we are in trouble: we need a new reconcilied namespace.
* This is expensive
*/
ret->ns = xmlNewReconciliedNs(target->doc, target, cur->ns);
}
}
} else
ret->ns = NULL;
if (cur->children != NULL) {
xmlNodePtr tmp;
ret->children = xmlStaticCopyNodeList(cur->children, ret->doc, (xmlNodePtr) ret);
ret->last = NULL;
tmp = ret->children;
while (tmp != NULL) {
/* tmp->parent = (xmlNodePtr)ret; */
if (tmp->next == NULL)
ret->last = tmp;
tmp = tmp->next;
}
}
/*
* Try to handle IDs
*/
if ((target!= NULL) && (cur!= NULL) &&
(target->doc != NULL) && (cur->doc != NULL) &&
(cur->doc->ids != NULL) && (cur->parent != NULL)) {
if (xmlIsID(cur->doc, cur->parent, cur)) {
xmlChar *id;
id = xmlNodeListGetString(cur->doc, cur->children, 1);
if (id != NULL) {
xmlAddID(NULL, target->doc, id, ret);
xmlFree(id);
}
}
}
return(ret);
}
/**
* xmlCopyPropList:
* @target: the element where the attributes will be grafted
* @cur: the first attribute
*
* Do a copy of an attribute list.
*
* Returns: a new #xmlAttrPtr, or NULL in case of error.
*/
xmlAttrPtr
xmlCopyPropList(xmlNodePtr target, xmlAttrPtr cur) {
xmlAttrPtr ret = NULL;
xmlAttrPtr p = NULL,q;
while (cur != NULL) {
q = xmlCopyProp(target, cur);
if (p == NULL) {
ret = p = q;
} else {
p->next = q;
q->prev = p;
p = q;
}
cur = cur->next;
}
return(ret);
}
/*
* NOTE about the CopyNode operations !
*
* They are split into external and internal parts for one
* tricky reason: namespaces. Doing a direct copy of a node
* say RPM:Copyright without changing the namespace pointer to
* something else can produce stale links. One way to do it is
* to keep a reference counter but this doesn't work as soon
* as one move the element or the subtree out of the scope of
* the existing namespace. The actual solution seems to add
* a copy of the namespace at the top of the copied tree if
* not available in the subtree.
* Hence two functions, the public front-end call the inner ones
* The argument "recursive" normally indicates a recursive copy
* of the node with values 0 (no) and 1 (yes). For XInclude,
* however, we allow a value of 2 to indicate copy properties and
* namespace info, but don't recurse on children.
*/
static xmlNodePtr
xmlStaticCopyNode(const xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,
int extended) {
xmlNodePtr ret;
if (node == NULL) return(NULL);
switch (node->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ELEMENT_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
break;
case XML_ATTRIBUTE_NODE:
return((xmlNodePtr) xmlCopyProp(parent, (xmlAttrPtr) node));
case XML_NAMESPACE_DECL:
return((xmlNodePtr) xmlCopyNamespaceList((xmlNsPtr) node));
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
#ifdef LIBXML_TREE_ENABLED
return((xmlNodePtr) xmlCopyDoc((xmlDocPtr) node, extended));
#endif /* LIBXML_TREE_ENABLED */
case XML_DOCUMENT_TYPE_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
return(NULL);
}
/*
* Allocate a new node and fill the fields.
*/
ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (ret == NULL) {
xmlTreeErrMemory("copying node");
return(NULL);
}
memset(ret, 0, sizeof(xmlNode));
ret->type = node->type;
ret->doc = doc;
ret->parent = parent;
if (node->name == xmlStringText)
ret->name = xmlStringText;
else if (node->name == xmlStringTextNoenc)
ret->name = xmlStringTextNoenc;
else if (node->name == xmlStringComment)
ret->name = xmlStringComment;
else if (node->name != NULL)
ret->name = xmlStrdup(node->name);
if ((node->type != XML_ELEMENT_NODE) &&
(node->content != NULL) &&
(node->type != XML_ENTITY_REF_NODE) &&
(node->type != XML_XINCLUDE_END) &&
(node->type != XML_XINCLUDE_START)) {
ret->content = xmlStrdup(node->content);
}else{
if (node->type == XML_ELEMENT_NODE)
ret->line = node->line;
}
if (parent != NULL) {
xmlNodePtr tmp;
/*
* this is a tricky part for the node register thing:
* in case ret does get coalesced in xmlAddChild
* the deregister-node callback is called; so we register ret now already
*/
if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
tmp = xmlAddChild(parent, ret);
/* node could have coalesced */
if (tmp != ret)
return(tmp);
}
if (!extended)
goto out;
if (node->nsDef != NULL)
ret->nsDef = xmlCopyNamespaceList(node->nsDef);
if (node->ns != NULL) {
xmlNsPtr ns;
ns = xmlSearchNs(doc, ret, node->ns->prefix);
if (ns == NULL) {
/*
* Humm, we are copying an element whose namespace is defined
* out of the new tree scope. Search it in the original tree
* and add it at the top of the new tree
*/
ns = xmlSearchNs(node->doc, node, node->ns->prefix);
if (ns != NULL) {
xmlNodePtr root = ret;
while (root->parent != NULL) root = root->parent;
ret->ns = xmlNewNs(root, ns->href, ns->prefix);
}
} else {
/*
* reference the existing namespace definition in our own tree.
*/
ret->ns = ns;
}
}
if (node->properties != NULL)
ret->properties = xmlCopyPropList(ret, node->properties);
if (node->type == XML_ENTITY_REF_NODE) {
if ((doc == NULL) || (node->doc != doc)) {
/*
* The copied node will go into a separate document, so
* to avoid dangling references to the ENTITY_DECL node
* we cannot keep the reference. Try to find it in the
* target document.
*/
ret->children = (xmlNodePtr) xmlGetDocEntity(doc, ret->name);
} else {
ret->children = node->children;
}
ret->last = ret->children;
} else if ((node->children != NULL) && (extended != 2)) {
ret->children = xmlStaticCopyNodeList(node->children, doc, ret);
UPDATE_LAST_CHILD_AND_PARENT(ret)
}
out:
/* if parent != NULL we already registered the node above */
if ((parent == NULL) &&
((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue)))
xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
return(ret);
}
static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {
xmlNodePtr ret = NULL;
xmlNodePtr p = NULL,q;
while (node != NULL) {
#ifdef LIBXML_TREE_ENABLED
if (node->type == XML_DTD_NODE ) {
if (doc == NULL) {
node = node->next;
continue;
}
if (doc->intSubset == NULL) {
q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );
q->doc = doc;
q->parent = parent;
doc->intSubset = (xmlDtdPtr) q;
xmlAddChild(parent, q);
} else {
q = (xmlNodePtr) doc->intSubset;
xmlAddChild(parent, q);
}
} else
#endif /* LIBXML_TREE_ENABLED */
q = xmlStaticCopyNode(node, doc, parent, 1);
if (ret == NULL) {
q->prev = NULL;
ret = p = q;
} else if (p != q) {
/* the test is required if xmlStaticCopyNode coalesced 2 text nodes */
p->next = q;
q->prev = p;
p = q;
}
node = node->next;
}
return(ret);
}
/**
* xmlCopyNode:
* @node: the node
* @extended: if 1 do a recursive copy (properties, namespaces and children
* when applicable)
* if 2 copy properties and namespaces (when applicable)
*
* Do a copy of the node.
*
* Returns: a new #xmlNodePtr, or NULL in case of error.
*/
xmlNodePtr
xmlCopyNode(const xmlNodePtr node, int extended) {
xmlNodePtr ret;
ret = xmlStaticCopyNode(node, NULL, NULL, extended);
return(ret);
}
/**
* xmlDocCopyNode:
* @node: the node
* @doc: the document
* @extended: if 1 do a recursive copy (properties, namespaces and children
* when applicable)
* if 2 copy properties and namespaces (when applicable)
*
* Do a copy of the node to a given document.
*
* Returns: a new #xmlNodePtr, or NULL in case of error.
*/
xmlNodePtr
xmlDocCopyNode(const xmlNodePtr node, xmlDocPtr doc, int extended) {
xmlNodePtr ret;
ret = xmlStaticCopyNode(node, doc, NULL, extended);
return(ret);
}
/**
* xmlCopyNodeList:
* @node: the first node in the list.
*
* Do a recursive copy of the node list.
*
* Returns: a new #xmlNodePtr, or NULL in case of error.
*/
xmlNodePtr xmlCopyNodeList(const xmlNodePtr node) {
xmlNodePtr ret = xmlStaticCopyNodeList(node, NULL, NULL);
return(ret);
}
#if defined(LIBXML_TREE_ENABLED)
/**
* xmlCopyDtd:
* @dtd: the dtd
*
* Do a copy of the dtd.
*
* Returns: a new #xmlDtdPtr, or NULL in case of error.
*/
xmlDtdPtr
xmlCopyDtd(xmlDtdPtr dtd) {
xmlDtdPtr ret;
xmlNodePtr cur, p = NULL, q;
if (dtd == NULL) return(NULL);
ret = xmlNewDtd(NULL, dtd->name, dtd->ExternalID, dtd->SystemID);
if (ret == NULL) return(NULL);
if (dtd->entities != NULL)
ret->entities = (void *) xmlCopyEntitiesTable(
(xmlEntitiesTablePtr) dtd->entities);
if (dtd->notations != NULL)
ret->notations = (void *) xmlCopyNotationTable(
(xmlNotationTablePtr) dtd->notations);
if (dtd->elements != NULL)
ret->elements = (void *) xmlCopyElementTable(
(xmlElementTablePtr) dtd->elements);
if (dtd->attributes != NULL)
ret->attributes = (void *) xmlCopyAttributeTable(
(xmlAttributeTablePtr) dtd->attributes);
if (dtd->pentities != NULL)
ret->pentities = (void *) xmlCopyEntitiesTable(
(xmlEntitiesTablePtr) dtd->pentities);
cur = dtd->children;
while (cur != NULL) {
q = NULL;
if (cur->type == XML_ENTITY_DECL) {
xmlEntityPtr tmp = (xmlEntityPtr) cur;
switch (tmp->etype) {
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
q = (xmlNodePtr) xmlGetEntityFromDtd(ret, tmp->name);
break;
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
q = (xmlNodePtr)
xmlGetParameterEntityFromDtd(ret, tmp->name);
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
break;
}
} else if (cur->type == XML_ELEMENT_DECL) {
xmlElementPtr tmp = (xmlElementPtr) cur;
q = (xmlNodePtr)
xmlGetDtdQElementDesc(ret, tmp->name, tmp->prefix);
} else if (cur->type == XML_ATTRIBUTE_DECL) {
xmlAttributePtr tmp = (xmlAttributePtr) cur;
q = (xmlNodePtr)
xmlGetDtdQAttrDesc(ret, tmp->elem, tmp->name, tmp->prefix);
} else if (cur->type == XML_COMMENT_NODE) {
q = xmlCopyNode(cur, 0);
}
if (q == NULL) {
cur = cur->next;
continue;
}
if (p == NULL)
ret->children = q;
else
p->next = q;
q->prev = p;
q->parent = (xmlNodePtr) ret;
q->next = NULL;
ret->last = q;
p = q;
cur = cur->next;
}
return(ret);
}
#endif
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/**
* xmlCopyDoc:
* @doc: the document
* @recursive: if not zero do a recursive copy.
*
* Do a copy of the document info. If recursive, the content tree will
* be copied too as well as DTD, namespaces and entities.
*
* Returns: a new #xmlDocPtr, or NULL in case of error.
*/
xmlDocPtr
xmlCopyDoc(xmlDocPtr doc, int recursive) {
xmlDocPtr ret;
if (doc == NULL) return(NULL);
ret = xmlNewDoc(doc->version);
if (ret == NULL) return(NULL);
if (doc->name != NULL)
ret->name = xmlMemStrdup(doc->name);
if (doc->encoding != NULL)
ret->encoding = xmlStrdup(doc->encoding);
ret->charset = doc->charset;
ret->compression = doc->compression;
ret->standalone = doc->standalone;
if (!recursive) return(ret);
ret->last = NULL;
ret->children = NULL;
#ifdef LIBXML_TREE_ENABLED
if (doc->intSubset != NULL) {
ret->intSubset = xmlCopyDtd(doc->intSubset);
xmlSetTreeDoc((xmlNodePtr)ret->intSubset, ret);
ret->intSubset->parent = ret;
}
#endif
if (doc->oldNs != NULL)
ret->oldNs = xmlCopyNamespaceList(doc->oldNs);
if (doc->children != NULL) {
xmlNodePtr tmp;
ret->children = xmlStaticCopyNodeList(doc->children, ret,
(xmlNodePtr)ret);
ret->last = NULL;
tmp = ret->children;
while (tmp != NULL) {
if (tmp->next == NULL)
ret->last = tmp;
tmp = tmp->next;
}
}
return(ret);
}
#endif /* LIBXML_TREE_ENABLED */
/************************************************************************
* *
* Content access functions *
* *
************************************************************************/
/**
* xmlGetLineNo:
* @node: valid node
*
* Get line number of @node. This requires activation of this option
* before invoking the parser by calling xmlLineNumbersDefault(1)
*
* Returns the line number if successful, -1 otherwise
*/
long
xmlGetLineNo(xmlNodePtr node)
{
long result = -1;
if (!node)
return result;
if (node->type == XML_ELEMENT_NODE)
result = (long) node->line;
else if ((node->prev != NULL) &&
((node->prev->type == XML_ELEMENT_NODE) ||
(node->prev->type == XML_TEXT_NODE)))
result = xmlGetLineNo(node->prev);
else if ((node->parent != NULL) &&
((node->parent->type == XML_ELEMENT_NODE) ||
(node->parent->type == XML_TEXT_NODE)))
result = xmlGetLineNo(node->parent);
return result;
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_DEBUG_ENABLED)
/**
* xmlGetNodePath:
* @node: a node
*
* Build a structure based Path for the given node
*
* Returns the new path or NULL in case of error. The caller must free
* the returned string
*/
xmlChar *
xmlGetNodePath(xmlNodePtr node)
{
xmlNodePtr cur, tmp, next;
xmlChar *buffer = NULL, *temp;
size_t buf_len;
xmlChar *buf;
const char *sep;
const char *name;
char nametemp[100];
int occur = 0;
if (node == NULL)
return (NULL);
buf_len = 500;
buffer = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));
if (buffer == NULL) {
xmlTreeErrMemory("getting node path");
return (NULL);
}
buf = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));
if (buf == NULL) {
xmlTreeErrMemory("getting node path");
xmlFree(buffer);
return (NULL);
}
buffer[0] = 0;
cur = node;
do {
name = "";
sep = "?";
occur = 0;
if ((cur->type == XML_DOCUMENT_NODE) ||
(cur->type == XML_HTML_DOCUMENT_NODE)) {
if (buffer[0] == '/')
break;
sep = "/";
next = NULL;
} else if (cur->type == XML_ELEMENT_NODE) {
sep = "/";
name = (const char *) cur->name;
if (cur->ns) {
if (cur->ns->prefix != NULL)
snprintf(nametemp, sizeof(nametemp) - 1,
"%s:%s", cur->ns->prefix, cur->name);
else
snprintf(nametemp, sizeof(nametemp) - 1,
"%s", cur->name);
nametemp[sizeof(nametemp) - 1] = 0;
name = nametemp;
}
next = cur->parent;
/*
* Thumbler index computation
* TODO: the ocurence test seems bogus for namespaced names
*/
tmp = cur->prev;
while (tmp != NULL) {
if ((tmp->type == XML_ELEMENT_NODE) &&
(xmlStrEqual(cur->name, tmp->name)))
occur++;
tmp = tmp->prev;
}
if (occur == 0) {
tmp = cur->next;
while (tmp != NULL && occur == 0) {
if ((tmp->type == XML_ELEMENT_NODE) &&
(xmlStrEqual(cur->name, tmp->name)))
occur++;
tmp = tmp->next;
}
if (occur != 0)
occur = 1;
} else
occur++;
} else if (cur->type == XML_COMMENT_NODE) {
sep = "/";
name = "comment()";
next = cur->parent;
/*
* Thumbler index computation
*/
tmp = cur->prev;
while (tmp != NULL) {
if (tmp->type == XML_COMMENT_NODE)
occur++;
tmp = tmp->prev;
}
if (occur == 0) {
tmp = cur->next;
while (tmp != NULL && occur == 0) {
if (tmp->type == XML_COMMENT_NODE)
occur++;
tmp = tmp->next;
}
if (occur != 0)
occur = 1;
} else
occur++;
} else if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
sep = "/";
name = "text()";
next = cur->parent;
/*
* Thumbler index computation
*/
tmp = cur->prev;
while (tmp != NULL) {
if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE))
occur++;
tmp = tmp->prev;
}
if (occur == 0) {
tmp = cur->next;
while (tmp != NULL && occur == 0) {
if ((tmp->type == XML_TEXT_NODE) ||
(tmp->type == XML_CDATA_SECTION_NODE))
occur++;
tmp = tmp->next;
}
if (occur != 0)
occur = 1;
} else
occur++;
} else if (cur->type == XML_PI_NODE) {
sep = "/";
snprintf(nametemp, sizeof(nametemp) - 1,
"processing-instruction('%s')", cur->name);
nametemp[sizeof(nametemp) - 1] = 0;
name = nametemp;
next = cur->parent;
/*
* Thumbler index computation
*/
tmp = cur->prev;
while (tmp != NULL) {
if ((tmp->type == XML_PI_NODE) &&
(xmlStrEqual(cur->name, tmp->name)))
occur++;
tmp = tmp->prev;
}
if (occur == 0) {
tmp = cur->next;
while (tmp != NULL && occur == 0) {
if ((tmp->type == XML_PI_NODE) &&
(xmlStrEqual(cur->name, tmp->name)))
occur++;
tmp = tmp->next;
}
if (occur != 0)
occur = 1;
} else
occur++;
} else if (cur->type == XML_ATTRIBUTE_NODE) {
sep = "/@";
name = (const char *) (((xmlAttrPtr) cur)->name);
next = ((xmlAttrPtr) cur)->parent;
} else {
next = cur->parent;
}
/*
* Make sure there is enough room
*/
if (xmlStrlen(buffer) + sizeof(nametemp) + 20 > buf_len) {
buf_len =
2 * buf_len + xmlStrlen(buffer) + sizeof(nametemp) + 20;
temp = (xmlChar *) xmlRealloc(buffer, buf_len);
if (temp == NULL) {
xmlTreeErrMemory("getting node path");
xmlFree(buf);
xmlFree(buffer);
return (NULL);
}
buffer = temp;
temp = (xmlChar *) xmlRealloc(buf, buf_len);
if (temp == NULL) {
xmlTreeErrMemory("getting node path");
xmlFree(buf);
xmlFree(buffer);
return (NULL);
}
buf = temp;
}
if (occur == 0)
snprintf((char *) buf, buf_len, "%s%s%s",
sep, name, (char *) buffer);
else
snprintf((char *) buf, buf_len, "%s%s[%d]%s",
sep, name, occur, (char *) buffer);
snprintf((char *) buffer, buf_len, "%s", buf);
cur = next;
} while (cur != NULL);
xmlFree(buf);
return (buffer);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlDocGetRootElement:
* @doc: the document
*
* Get the root element of the document (doc->children is a list
* containing possibly comments, PIs, etc ...).
*
* Returns the #xmlNodePtr for the root or NULL
*/
xmlNodePtr
xmlDocGetRootElement(xmlDocPtr doc) {
xmlNodePtr ret;
if (doc == NULL) return(NULL);
ret = doc->children;
while (ret != NULL) {
if (ret->type == XML_ELEMENT_NODE)
return(ret);
ret = ret->next;
}
return(ret);
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)
/**
* xmlDocSetRootElement:
* @doc: the document
* @root: the new document root element
*
* Set the root element of the document (doc->children is a list
* containing possibly comments, PIs, etc ...).
*
* Returns the old root element if any was found
*/
xmlNodePtr
xmlDocSetRootElement(xmlDocPtr doc, xmlNodePtr root) {
xmlNodePtr old = NULL;
if (doc == NULL) return(NULL);
if (root == NULL)
return(NULL);
xmlUnlinkNode(root);
root->doc = doc;
root->parent = (xmlNodePtr) doc;
old = doc->children;
while (old != NULL) {
if (old->type == XML_ELEMENT_NODE)
break;
old = old->next;
}
if (old == NULL) {
if (doc->children == NULL) {
doc->children = root;
doc->last = root;
} else {
xmlAddSibling(doc->children, root);
}
} else {
xmlReplaceNode(old, root);
}
return(old);
}
#endif
#if defined(LIBXML_TREE_ENABLED)
/**
* xmlNodeSetLang:
* @cur: the node being changed
* @lang: the language description
*
* Set the language of a node, i.e. the values of the xml:lang
* attribute.
*/
void
xmlNodeSetLang(xmlNodePtr cur, const xmlChar *lang) {
xmlNsPtr ns;
if (cur == NULL) return;
switch(cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
case XML_PI_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_NAMESPACE_DECL:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
}
ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
if (ns == NULL)
return;
xmlSetNsProp(cur, ns, BAD_CAST "lang", lang);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNodeGetLang:
* @cur: the node being checked
*
* Searches the language of a node, i.e. the values of the xml:lang
* attribute or the one carried by the nearest ancestor.
*
* Returns a pointer to the lang value, or NULL if not found
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlNodeGetLang(xmlNodePtr cur) {
xmlChar *lang;
while (cur != NULL) {
lang = xmlGetNsProp(cur, BAD_CAST "lang", XML_XML_NAMESPACE);
if (lang != NULL)
return(lang);
cur = cur->parent;
}
return(NULL);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNodeSetSpacePreserve:
* @cur: the node being changed
* @val: the xml:space value ("0": default, 1: "preserve")
*
* Set (or reset) the space preserving behaviour of a node, i.e. the
* value of the xml:space attribute.
*/
void
xmlNodeSetSpacePreserve(xmlNodePtr cur, int val) {
xmlNsPtr ns;
if (cur == NULL) return;
switch(cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
case XML_PI_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_NAMESPACE_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
}
ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
if (ns == NULL)
return;
switch (val) {
case 0:
xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "default");
break;
case 1:
xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "preserve");
break;
}
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNodeGetSpacePreserve:
* @cur: the node being checked
*
* Searches the space preserving behaviour of a node, i.e. the values
* of the xml:space attribute or the one carried by the nearest
* ancestor.
*
* Returns -1 if xml:space is not inherited, 0 if "default", 1 if "preserve"
*/
int
xmlNodeGetSpacePreserve(xmlNodePtr cur) {
xmlChar *space;
while (cur != NULL) {
space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE);
if (space != NULL) {
if (xmlStrEqual(space, BAD_CAST "preserve")) {
xmlFree(space);
return(1);
}
if (xmlStrEqual(space, BAD_CAST "default")) {
xmlFree(space);
return(0);
}
xmlFree(space);
}
cur = cur->parent;
}
return(-1);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNodeSetName:
* @cur: the node being changed
* @name: the new tag name
*
* Set (or reset) the name of a node.
*/
void
xmlNodeSetName(xmlNodePtr cur, const xmlChar *name) {
if (cur == NULL) return;
if (name == NULL) return;
switch(cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_NAMESPACE_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
case XML_PI_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_DTD_NODE:
case XML_DOCUMENT_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
break;
}
if (cur->name != NULL) xmlFree((xmlChar *) cur->name);
cur->name = xmlStrdup(name);
}
#endif
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED)
/**
* xmlNodeSetBase:
* @cur: the node being changed
* @uri: the new base URI
*
* Set (or reset) the base URI of a node, i.e. the value of the
* xml:base attribute.
*/
void
xmlNodeSetBase(xmlNodePtr cur, const xmlChar* uri) {
xmlNsPtr ns;
if (cur == NULL) return;
switch(cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
case XML_PI_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_NAMESPACE_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE: {
xmlDocPtr doc = (xmlDocPtr) cur;
if (doc->URL != NULL)
xmlFree((xmlChar *) doc->URL);
if (uri == NULL)
doc->URL = NULL;
else
doc->URL = xmlStrdup(uri);
return;
}
}
ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
if (ns == NULL)
return;
xmlSetNsProp(cur, ns, BAD_CAST "base", uri);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNodeGetBase:
* @doc: the document the node pertains to
* @cur: the node being checked
*
* Searches for the BASE URL. The code should work on both XML
* and HTML document even if base mechanisms are completely different.
* It returns the base as defined in RFC 2396 sections
* 5.1.1. Base URI within Document Content
* and
* 5.1.2. Base URI from the Encapsulating Entity
* However it does not return the document base (5.1.3), use
* xmlDocumentGetBase() for this
*
* Returns a pointer to the base URL, or NULL if not found
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlNodeGetBase(xmlDocPtr doc, xmlNodePtr cur) {
xmlChar *oldbase = NULL;
xmlChar *base, *newbase;
if ((cur == NULL) && (doc == NULL))
return(NULL);
if (doc == NULL) doc = cur->doc;
if ((doc != NULL) && (doc->type == XML_HTML_DOCUMENT_NODE)) {
cur = doc->children;
while ((cur != NULL) && (cur->name != NULL)) {
if (cur->type != XML_ELEMENT_NODE) {
cur = cur->next;
continue;
}
if (!xmlStrcasecmp(cur->name, BAD_CAST "html")) {
cur = cur->children;
continue;
}
if (!xmlStrcasecmp(cur->name, BAD_CAST "head")) {
cur = cur->children;
continue;
}
if (!xmlStrcasecmp(cur->name, BAD_CAST "base")) {
return(xmlGetProp(cur, BAD_CAST "href"));
}
cur = cur->next;
}
return(NULL);
}
while (cur != NULL) {
if (cur->type == XML_ENTITY_DECL) {
xmlEntityPtr ent = (xmlEntityPtr) cur;
return(xmlStrdup(ent->URI));
}
if (cur->type == XML_ELEMENT_NODE) {
base = xmlGetNsProp(cur, BAD_CAST "base", XML_XML_NAMESPACE);
if (base != NULL) {
if (oldbase != NULL) {
newbase = xmlBuildURI(oldbase, base);
if (newbase != NULL) {
xmlFree(oldbase);
xmlFree(base);
oldbase = newbase;
} else {
xmlFree(oldbase);
xmlFree(base);
return(NULL);
}
} else {
oldbase = base;
}
if ((!xmlStrncmp(oldbase, BAD_CAST "http://", 7)) ||
(!xmlStrncmp(oldbase, BAD_CAST "ftp://", 6)) ||
(!xmlStrncmp(oldbase, BAD_CAST "urn:", 4)))
return(oldbase);
}
}
cur = cur->parent;
}
if ((doc != NULL) && (doc->URL != NULL)) {
if (oldbase == NULL)
return(xmlStrdup(doc->URL));
newbase = xmlBuildURI(oldbase, doc->URL);
xmlFree(oldbase);
return(newbase);
}
return(oldbase);
}
/**
* xmlNodeBufGetContent:
* @buffer: a buffer
* @cur: the node being read
*
* Read the value of a node @cur, this can be either the text carried
* directly by this node if it's a TEXT node or the aggregate string
* of the values carried by this node child's (TEXT and ENTITY_REF).
* Entity references are substituted.
* Fills up the buffer @buffer with this value
*
* Returns 0 in case of success and -1 in case of error.
*/
int
xmlNodeBufGetContent(xmlBufferPtr buffer, xmlNodePtr cur)
{
if ((cur == NULL) || (buffer == NULL)) return(-1);
switch (cur->type) {
case XML_CDATA_SECTION_NODE:
case XML_TEXT_NODE:
xmlBufferCat(buffer, cur->content);
break;
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:{
xmlNodePtr tmp = cur;
while (tmp != NULL) {
switch (tmp->type) {
case XML_CDATA_SECTION_NODE:
case XML_TEXT_NODE:
if (tmp->content != NULL)
xmlBufferCat(buffer, tmp->content);
break;
case XML_ENTITY_REF_NODE:
xmlNodeBufGetContent(buffer, tmp->children);
break;
default:
break;
}
/*
* Skip to next node
*/
if (tmp->children != NULL) {
if (tmp->children->type != XML_ENTITY_DECL) {
tmp = tmp->children;
continue;
}
}
if (tmp == cur)
break;
if (tmp->next != NULL) {
tmp = tmp->next;
continue;
}
do {
tmp = tmp->parent;
if (tmp == NULL)
break;
if (tmp == cur) {
tmp = NULL;
break;
}
if (tmp->next != NULL) {
tmp = tmp->next;
break;
}
} while (tmp != NULL);
}
break;
}
case XML_ATTRIBUTE_NODE:{
xmlAttrPtr attr = (xmlAttrPtr) cur;
xmlNodePtr tmp = attr->children;
while (tmp != NULL) {
if (tmp->type == XML_TEXT_NODE)
xmlBufferCat(buffer, tmp->content);
else
xmlNodeBufGetContent(buffer, tmp);
tmp = tmp->next;
}
break;
}
case XML_COMMENT_NODE:
case XML_PI_NODE:
xmlBufferCat(buffer, cur->content);
break;
case XML_ENTITY_REF_NODE:{
xmlEntityPtr ent;
xmlNodePtr tmp;
/* lookup entity declaration */
ent = xmlGetDocEntity(cur->doc, cur->name);
if (ent == NULL)
return(-1);
/* an entity content can be any "well balanced chunk",
* i.e. the result of the content [43] production:
* http://www.w3.org/TR/REC-xml#NT-content
* -> we iterate through child nodes and recursive call
* xmlNodeGetContent() which handles all possible node types */
tmp = ent->children;
while (tmp) {
xmlNodeBufGetContent(buffer, tmp);
tmp = tmp->next;
}
break;
}
case XML_ENTITY_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
break;
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE:
cur = cur->children;
while (cur!= NULL) {
if ((cur->type == XML_ELEMENT_NODE) ||
(cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
xmlNodeBufGetContent(buffer, cur);
}
cur = cur->next;
}
break;
case XML_NAMESPACE_DECL:
xmlBufferCat(buffer, ((xmlNsPtr) cur)->href);
break;
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
break;
}
return(0);
}
/**
* xmlNodeGetContent:
* @cur: the node being read
*
* Read the value of a node, this can be either the text carried
* directly by this node if it's a TEXT node or the aggregate string
* of the values carried by this node child's (TEXT and ENTITY_REF).
* Entity references are substituted.
* Returns a new #xmlChar * or NULL if no content is available.
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlNodeGetContent(xmlNodePtr cur)
{
if (cur == NULL)
return (NULL);
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:{
xmlBufferPtr buffer;
xmlChar *ret;
buffer = xmlBufferCreateSize(64);
if (buffer == NULL)
return (NULL);
xmlNodeBufGetContent(buffer, cur);
ret = buffer->content;
buffer->content = NULL;
xmlBufferFree(buffer);
return (ret);
}
case XML_ATTRIBUTE_NODE:{
xmlAttrPtr attr = (xmlAttrPtr) cur;
if (attr->parent != NULL)
return (xmlNodeListGetString
(attr->parent->doc, attr->children, 1));
else
return (xmlNodeListGetString(NULL, attr->children, 1));
break;
}
case XML_COMMENT_NODE:
case XML_PI_NODE:
if (cur->content != NULL)
return (xmlStrdup(cur->content));
return (NULL);
case XML_ENTITY_REF_NODE:{
xmlEntityPtr ent;
xmlBufferPtr buffer;
xmlChar *ret;
/* lookup entity declaration */
ent = xmlGetDocEntity(cur->doc, cur->name);
if (ent == NULL)
return (NULL);
buffer = xmlBufferCreate();
if (buffer == NULL)
return (NULL);
xmlNodeBufGetContent(buffer, cur);
ret = buffer->content;
buffer->content = NULL;
xmlBufferFree(buffer);
return (ret);
}
case XML_ENTITY_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
return (NULL);
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE: {
xmlBufferPtr buffer;
xmlChar *ret;
buffer = xmlBufferCreate();
if (buffer == NULL)
return (NULL);
xmlNodeBufGetContent(buffer, (xmlNodePtr) cur);
ret = buffer->content;
buffer->content = NULL;
xmlBufferFree(buffer);
return (ret);
}
case XML_NAMESPACE_DECL: {
xmlChar *tmp;
tmp = xmlStrdup(((xmlNsPtr) cur)->href);
return (tmp);
}
case XML_ELEMENT_DECL:
/* TODO !!! */
return (NULL);
case XML_ATTRIBUTE_DECL:
/* TODO !!! */
return (NULL);
case XML_ENTITY_DECL:
/* TODO !!! */
return (NULL);
case XML_CDATA_SECTION_NODE:
case XML_TEXT_NODE:
if (cur->content != NULL)
return (xmlStrdup(cur->content));
return (NULL);
}
return (NULL);
}
/**
* xmlNodeSetContent:
* @cur: the node being modified
* @content: the new value of the content
*
* Replace the content of a node.
*/
void
xmlNodeSetContent(xmlNodePtr cur, const xmlChar *content) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeSetContent : node == NULL\n");
#endif
return;
}
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = xmlStringGetNodeList(cur->doc, content);
UPDATE_LAST_CHILD_AND_PARENT(cur)
break;
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
if (cur->content != NULL) {
if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&
xmlDictOwns(cur->doc->dict, cur->content)))
xmlFree(cur->content);
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->last = cur->children = NULL;
if (content != NULL) {
cur->content = xmlStrdup(content);
} else
cur->content = NULL;
break;
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
break;
case XML_NOTATION_NODE:
break;
case XML_DTD_NODE:
break;
case XML_NAMESPACE_DECL:
break;
case XML_ELEMENT_DECL:
/* TODO !!! */
break;
case XML_ATTRIBUTE_DECL:
/* TODO !!! */
break;
case XML_ENTITY_DECL:
/* TODO !!! */
break;
}
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlNodeSetContentLen:
* @cur: the node being modified
* @content: the new value of the content
* @len: the size of @content
*
* Replace the content of a node.
*/
void
xmlNodeSetContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeSetContentLen : node == NULL\n");
#endif
return;
}
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = xmlStringLenGetNodeList(cur->doc, content, len);
UPDATE_LAST_CHILD_AND_PARENT(cur)
break;
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_NOTATION_NODE:
if (cur->content != NULL) {
xmlFree(cur->content);
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = cur->last = NULL;
if (content != NULL) {
cur->content = xmlStrndup(content, len);
} else
cur->content = NULL;
break;
case XML_DOCUMENT_NODE:
case XML_DTD_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NAMESPACE_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
break;
case XML_ELEMENT_DECL:
/* TODO !!! */
break;
case XML_ATTRIBUTE_DECL:
/* TODO !!! */
break;
case XML_ENTITY_DECL:
/* TODO !!! */
break;
}
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNodeAddContentLen:
* @cur: the node being modified
* @content: extra content
* @len: the size of @content
*
* Append the extra substring to the node content.
*/
void
xmlNodeAddContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeAddContentLen : node == NULL\n");
#endif
return;
}
if (len <= 0) return;
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE: {
xmlNodePtr last, newNode, tmp;
last = cur->last;
newNode = xmlNewTextLen(content, len);
if (newNode != NULL) {
tmp = xmlAddChild(cur, newNode);
if (tmp != newNode)
return;
if ((last != NULL) && (last->next == newNode)) {
xmlTextMerge(last, newNode);
}
}
break;
}
case XML_ATTRIBUTE_NODE:
break;
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_NOTATION_NODE:
if (content != NULL) {
if ((cur->doc != NULL) && (cur->doc->dict != NULL) &&
xmlDictOwns(cur->doc->dict, cur->content)) {
cur->content =
xmlStrncatNew(cur->content, content, len);
break;
}
cur->content = xmlStrncat(cur->content, content, len);
}
case XML_DOCUMENT_NODE:
case XML_DTD_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NAMESPACE_DECL:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
break;
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
break;
}
}
/**
* xmlNodeAddContent:
* @cur: the node being modified
* @content: extra content
*
* Append the extra substring to the node content.
*/
void
xmlNodeAddContent(xmlNodePtr cur, const xmlChar *content) {
int len;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeAddContent : node == NULL\n");
#endif
return;
}
if (content == NULL) return;
len = xmlStrlen(content);
xmlNodeAddContentLen(cur, content, len);
}
/**
* xmlTextMerge:
* @first: the first text node
* @second: the second text node being merged
*
* Merge two text nodes into one
* Returns the first text node augmented
*/
xmlNodePtr
xmlTextMerge(xmlNodePtr first, xmlNodePtr second) {
if (first == NULL) return(second);
if (second == NULL) return(first);
if (first->type != XML_TEXT_NODE) return(first);
if (second->type != XML_TEXT_NODE) return(first);
if (second->name != first->name)
return(first);
xmlNodeAddContent(first, second->content);
xmlUnlinkNode(second);
xmlFreeNode(second);
return(first);
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XPATH_ENABLED)
/**
* xmlGetNsList:
* @doc: the document
* @node: the current node
*
* Search all the namespace applying to a given element.
* Returns an NULL terminated array of all the #xmlNsPtr found
* that need to be freed by the caller or NULL if no
* namespace if defined
*/
xmlNsPtr *
xmlGetNsList(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node)
{
xmlNsPtr cur;
xmlNsPtr *ret = NULL;
int nbns = 0;
int maxns = 10;
int i;
while (node != NULL) {
if (node->type == XML_ELEMENT_NODE) {
cur = node->nsDef;
while (cur != NULL) {
if (ret == NULL) {
ret =
(xmlNsPtr *) xmlMalloc((maxns + 1) *
sizeof(xmlNsPtr));
if (ret == NULL) {
xmlTreeErrMemory("getting namespace list");
return (NULL);
}
ret[nbns] = NULL;
}
for (i = 0; i < nbns; i++) {
if ((cur->prefix == ret[i]->prefix) ||
(xmlStrEqual(cur->prefix, ret[i]->prefix)))
break;
}
if (i >= nbns) {
if (nbns >= maxns) {
maxns *= 2;
ret = (xmlNsPtr *) xmlRealloc(ret,
(maxns +
1) *
sizeof(xmlNsPtr));
if (ret == NULL) {
xmlTreeErrMemory("getting namespace list");
return (NULL);
}
}
ret[nbns++] = cur;
ret[nbns] = NULL;
}
cur = cur->next;
}
}
node = node->parent;
}
return (ret);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlSearchNs:
* @doc: the document
* @node: the current node
* @nameSpace: the namespace prefix
*
* Search a Ns registered under a given name space for a document.
* recurse on the parents until it finds the defined namespace
* or return NULL otherwise.
* @nameSpace can be NULL, this is a search for the default namespace.
* We don't allow to cross entities boundaries. If you don't declare
* the namespace within those you will be in troubles !!! A warning
* is generated to cover this case.
*
* Returns the namespace pointer or NULL.
*/
xmlNsPtr
xmlSearchNs(xmlDocPtr doc, xmlNodePtr node, const xmlChar *nameSpace) {
xmlNsPtr cur;
xmlNodePtr orig = node;
if (node == NULL) return(NULL);
if ((nameSpace != NULL) &&
(xmlStrEqual(nameSpace, (const xmlChar *)"xml"))) {
if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
/*
* The XML-1.0 namespace is normally held on the root
* element. In this case exceptionally create it on the
* node element.
*/
cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (cur == NULL) {
xmlTreeErrMemory("searching namespace");
return(NULL);
}
memset(cur, 0, sizeof(xmlNs));
cur->type = XML_LOCAL_NAMESPACE;
cur->href = xmlStrdup(XML_XML_NAMESPACE);
cur->prefix = xmlStrdup((const xmlChar *)"xml");
cur->next = node->nsDef;
node->nsDef = cur;
return(cur);
}
if (doc->oldNs == NULL) {
/*
* Allocate a new Namespace and fill the fields.
*/
doc->oldNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (doc->oldNs == NULL) {
xmlTreeErrMemory("searching namespace");
return(NULL);
}
memset(doc->oldNs, 0, sizeof(xmlNs));
doc->oldNs->type = XML_LOCAL_NAMESPACE;
doc->oldNs->href = xmlStrdup(XML_XML_NAMESPACE);
doc->oldNs->prefix = xmlStrdup((const xmlChar *)"xml");
}
return(doc->oldNs);
}
while (node != NULL) {
if ((node->type == XML_ENTITY_REF_NODE) ||
(node->type == XML_ENTITY_NODE) ||
(node->type == XML_ENTITY_DECL))
return(NULL);
if (node->type == XML_ELEMENT_NODE) {
cur = node->nsDef;
while (cur != NULL) {
if ((cur->prefix == NULL) && (nameSpace == NULL) &&
(cur->href != NULL))
return(cur);
if ((cur->prefix != NULL) && (nameSpace != NULL) &&
(cur->href != NULL) &&
(xmlStrEqual(cur->prefix, nameSpace)))
return(cur);
cur = cur->next;
}
if (orig != node) {
cur = node->ns;
if (cur != NULL) {
if ((cur->prefix == NULL) && (nameSpace == NULL) &&
(cur->href != NULL))
return(cur);
if ((cur->prefix != NULL) && (nameSpace != NULL) &&
(cur->href != NULL) &&
(xmlStrEqual(cur->prefix, nameSpace)))
return(cur);
}
}
}
node = node->parent;
}
return(NULL);
}
/**
* xmlNsInScope:
* @doc: the document
* @node: the current node
* @ancestor: the ancestor carrying the namespace
* @prefix: the namespace prefix
*
* Verify that the given namespace held on @ancestor is still in scope
* on node.
*
* Returns 1 if true, 0 if false and -1 in case of error.
*/
static int
xmlNsInScope(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node,
xmlNodePtr ancestor, const xmlChar * prefix)
{
xmlNsPtr tst;
while ((node != NULL) && (node != ancestor)) {
if ((node->type == XML_ENTITY_REF_NODE) ||
(node->type == XML_ENTITY_NODE) ||
(node->type == XML_ENTITY_DECL))
return (-1);
if (node->type == XML_ELEMENT_NODE) {
tst = node->nsDef;
while (tst != NULL) {
if ((tst->prefix == NULL)
&& (prefix == NULL))
return (0);
if ((tst->prefix != NULL)
&& (prefix != NULL)
&& (xmlStrEqual(tst->prefix, prefix)))
return (0);
tst = tst->next;
}
}
node = node->parent;
}
if (node != ancestor)
return (-1);
return (1);
}
/**
* xmlSearchNsByHref:
* @doc: the document
* @node: the current node
* @href: the namespace value
*
* Search a Ns aliasing a given URI. Recurse on the parents until it finds
* the defined namespace or return NULL otherwise.
* Returns the namespace pointer or NULL.
*/
xmlNsPtr
xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
{
xmlNsPtr cur;
xmlNodePtr orig = node;
int is_attr;
if ((node == NULL) || (href == NULL))
return (NULL);
if (xmlStrEqual(href, XML_XML_NAMESPACE)) {
/*
* Only the document can hold the XML spec namespace.
*/
if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
/*
* The XML-1.0 namespace is normally held on the root
* element. In this case exceptionally create it on the
* node element.
*/
cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (cur == NULL) {
xmlTreeErrMemory("searching namespace");
return (NULL);
}
memset(cur, 0, sizeof(xmlNs));
cur->type = XML_LOCAL_NAMESPACE;
cur->href = xmlStrdup(XML_XML_NAMESPACE);
cur->prefix = xmlStrdup((const xmlChar *) "xml");
cur->next = node->nsDef;
node->nsDef = cur;
return (cur);
}
if (doc->oldNs == NULL) {
/*
* Allocate a new Namespace and fill the fields.
*/
doc->oldNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (doc->oldNs == NULL) {
xmlTreeErrMemory("searching namespace");
return (NULL);
}
memset(doc->oldNs, 0, sizeof(xmlNs));
doc->oldNs->type = XML_LOCAL_NAMESPACE;
doc->oldNs->href = xmlStrdup(XML_XML_NAMESPACE);
doc->oldNs->prefix = xmlStrdup((const xmlChar *) "xml");
}
return (doc->oldNs);
}
is_attr = (node->type == XML_ATTRIBUTE_NODE);
while (node != NULL) {
if ((node->type == XML_ENTITY_REF_NODE) ||
(node->type == XML_ENTITY_NODE) ||
(node->type == XML_ENTITY_DECL))
return (NULL);
if (node->type == XML_ELEMENT_NODE) {
cur = node->nsDef;
while (cur != NULL) {
if ((cur->href != NULL) && (href != NULL) &&
(xmlStrEqual(cur->href, href))) {
if (((!is_attr) || (cur->prefix != NULL)) &&
(xmlNsInScope(doc, orig, node, cur->href) == 1))
return (cur);
}
cur = cur->next;
}
if (orig != node) {
cur = node->ns;
if (cur != NULL) {
if ((cur->href != NULL) && (href != NULL) &&
(xmlStrEqual(cur->href, href))) {
if (((!is_attr) || (cur->prefix != NULL)) &&
(xmlNsInScope(doc, orig, node, cur->href) == 1))
return (cur);
}
}
}
}
node = node->parent;
}
return (NULL);
}
/**
* xmlNewReconciliedNs:
* @doc: the document
* @tree: a node expected to hold the new namespace
* @ns: the original namespace
*
* This function tries to locate a namespace definition in a tree
* ancestors, or create a new namespace definition node similar to
* @ns trying to reuse the same prefix. However if the given prefix is
* null (default namespace) or reused within the subtree defined by
* @tree or on one of its ancestors then a new prefix is generated.
* Returns the (new) namespace definition or NULL in case of error
*/
xmlNsPtr
xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns) {
xmlNsPtr def;
xmlChar prefix[50];
int counter = 1;
if (tree == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewReconciliedNs : tree == NULL\n");
#endif
return(NULL);
}
if (ns == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewReconciliedNs : ns == NULL\n");
#endif
return(NULL);
}
/*
* Search an existing namespace definition inherited.
*/
def = xmlSearchNsByHref(doc, tree, ns->href);
if (def != NULL)
return(def);
/*
* Find a close prefix which is not already in use.
* Let's strip namespace prefixes longer than 20 chars !
*/
if (ns->prefix == NULL)
snprintf((char *) prefix, sizeof(prefix), "default");
else
snprintf((char *) prefix, sizeof(prefix), "%.20s", ns->prefix);
def = xmlSearchNs(doc, tree, prefix);
while (def != NULL) {
if (counter > 1000) return(NULL);
if (ns->prefix == NULL)
snprintf((char *) prefix, sizeof(prefix), "default%d", counter++);
else
snprintf((char *) prefix, sizeof(prefix), "%.20s%d", ns->prefix, counter++);
def = xmlSearchNs(doc, tree, prefix);
}
/*
* OK, now we are ready to create a new one.
*/
def = xmlNewNs(tree, ns->href, prefix);
return(def);
}
#ifdef LIBXML_TREE_ENABLED
/**
* xmlReconciliateNs:
* @doc: the document
* @tree: a node defining the subtree to reconciliate
*
* This function checks that all the namespaces declared within the given
* tree are properly declared. This is needed for example after Copy or Cut
* and then paste operations. The subtree may still hold pointers to
* namespace declarations outside the subtree or invalid/masked. As much
* as possible the function try to reuse the existing namespaces found in
* the new environment. If not possible the new namespaces are redeclared
* on @tree at the top of the given subtree.
* Returns the number of namespace declarations created or -1 in case of error.
*/
int
xmlReconciliateNs(xmlDocPtr doc, xmlNodePtr tree) {
xmlNsPtr *oldNs = NULL;
xmlNsPtr *newNs = NULL;
int sizeCache = 0;
int nbCache = 0;
xmlNsPtr n;
xmlNodePtr node = tree;
xmlAttrPtr attr;
int ret = 0, i;
while (node != NULL) {
/*
* Reconciliate the node namespace
*/
if (node->ns != NULL) {
/*
* initialize the cache if needed
*/
if (sizeCache == 0) {
sizeCache = 10;
oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (oldNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
return(-1);
}
newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(oldNs);
return(-1);
}
}
for (i = 0;i < nbCache;i++) {
if (oldNs[i] == node->ns) {
node->ns = newNs[i];
break;
}
}
if (i == nbCache) {
/*
* OK we need to recreate a new namespace definition
*/
n = xmlNewReconciliedNs(doc, tree, node->ns);
if (n != NULL) { /* :-( what if else ??? */
/*
* check if we need to grow the cache buffers.
*/
if (sizeCache <= nbCache) {
sizeCache *= 2;
oldNs = (xmlNsPtr *) xmlRealloc(oldNs, sizeCache *
sizeof(xmlNsPtr));
if (oldNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(newNs);
return(-1);
}
newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(oldNs);
return(-1);
}
}
newNs[nbCache] = n;
oldNs[nbCache++] = node->ns;
node->ns = n;
}
}
}
/*
* now check for namespace hold by attributes on the node.
*/
attr = node->properties;
while (attr != NULL) {
if (attr->ns != NULL) {
/*
* initialize the cache if needed
*/
if (sizeCache == 0) {
sizeCache = 10;
oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (oldNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
return(-1);
}
newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(oldNs);
return(-1);
}
}
for (i = 0;i < nbCache;i++) {
if (oldNs[i] == attr->ns) {
attr->ns = newNs[i];
break;
}
}
if (i == nbCache) {
/*
* OK we need to recreate a new namespace definition
*/
n = xmlNewReconciliedNs(doc, tree, attr->ns);
if (n != NULL) { /* :-( what if else ??? */
/*
* check if we need to grow the cache buffers.
*/
if (sizeCache <= nbCache) {
sizeCache *= 2;
oldNs = (xmlNsPtr *) xmlRealloc(oldNs, sizeCache *
sizeof(xmlNsPtr));
if (oldNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(newNs);
return(-1);
}
newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlTreeErrMemory("fixing namespaces");
xmlFree(oldNs);
return(-1);
}
}
newNs[nbCache] = n;
oldNs[nbCache++] = attr->ns;
attr->ns = n;
}
}
}
attr = attr->next;
}
/*
* Browse the full subtree, deep first
*/
if (node->children != NULL && node->type != XML_ENTITY_REF_NODE) {
/* deep first */
node = node->children;
} else if ((node != tree) && (node->next != NULL)) {
/* then siblings */
node = node->next;
} else if (node != tree) {
/* go up to parents->next if needed */
while (node != tree) {
if (node->parent != NULL)
node = node->parent;
if ((node != tree) && (node->next != NULL)) {
node = node->next;
break;
}
if (node->parent == NULL) {
node = NULL;
break;
}
}
/* exit condition */
if (node == tree)
node = NULL;
} else
break;
}
if (oldNs != NULL)
xmlFree(oldNs);
if (newNs != NULL)
xmlFree(newNs);
return(ret);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlHasProp:
* @node: the node
* @name: the attribute name
*
* Search an attribute associated to a node
* This function also looks in DTD attribute declaration for #FIXED or
* default declaration values unless DTD use has been turned off.
*
* Returns the attribute or the attribute declaration or NULL if
* neither was found.
*/
xmlAttrPtr
xmlHasProp(xmlNodePtr node, const xmlChar *name) {
xmlAttrPtr prop;
xmlDocPtr doc;
if ((node == NULL) || (name == NULL)) return(NULL);
/*
* Check on the properties attached to the node
*/
prop = node->properties;
while (prop != NULL) {
if (xmlStrEqual(prop->name, name)) {
return(prop);
}
prop = prop->next;
}
if (!xmlCheckDTD) return(NULL);
/*
* Check if there is a default declaration in the internal
* or external subsets
*/
doc = node->doc;
if (doc != NULL) {
xmlAttributePtr attrDecl;
if (doc->intSubset != NULL) {
attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
if ((attrDecl == NULL) && (doc->extSubset != NULL))
attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
/* return attribute declaration only if a default value is given
(that includes #FIXED declarations) */
return((xmlAttrPtr) attrDecl);
}
}
return(NULL);
}
/**
* xmlHasNsProp:
* @node: the node
* @name: the attribute name
* @nameSpace: the URI of the namespace
*
* Search for an attribute associated to a node
* This attribute has to be anchored in the namespace specified.
* This does the entity substitution.
* This function looks in DTD attribute declaration for #FIXED or
* default declaration values unless DTD use has been turned off.
*
* Returns the attribute or the attribute declaration or NULL
* if neither was found.
*/
xmlAttrPtr
xmlHasNsProp(xmlNodePtr node, const xmlChar *name, const xmlChar *nameSpace) {
xmlAttrPtr prop;
#ifdef LIBXML_TREE_ENABLED
xmlDocPtr doc;
#endif /* LIBXML_TREE_ENABLED */
if (node == NULL)
return(NULL);
prop = node->properties;
if (nameSpace == NULL)
return(xmlHasProp(node, name));
while (prop != NULL) {
/*
* One need to have
* - same attribute names
* - and the attribute carrying that namespace
*/
if ((xmlStrEqual(prop->name, name)) &&
((prop->ns != NULL) && (xmlStrEqual(prop->ns->href, nameSpace)))) {
return(prop);
}
prop = prop->next;
}
if (!xmlCheckDTD) return(NULL);
#ifdef LIBXML_TREE_ENABLED
/*
* Check if there is a default declaration in the internal
* or external subsets
*/
doc = node->doc;
if (doc != NULL) {
if (doc->intSubset != NULL) {
xmlAttributePtr attrDecl = NULL;
xmlNsPtr *nsList, *cur;
xmlChar *ename;
nsList = xmlGetNsList(node->doc, node);
if (nsList == NULL)
return(NULL);
if ((node->ns != NULL) && (node->ns->prefix != NULL)) {
ename = xmlStrdup(node->ns->prefix);
ename = xmlStrcat(ename, BAD_CAST ":");
ename = xmlStrcat(ename, node->name);
} else {
ename = xmlStrdup(node->name);
}
if (ename == NULL) {
xmlFree(nsList);
return(NULL);
}
cur = nsList;
while (*cur != NULL) {
if (xmlStrEqual((*cur)->href, nameSpace)) {
attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, ename,
name, (*cur)->prefix);
if ((attrDecl == NULL) && (doc->extSubset != NULL))
attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, ename,
name, (*cur)->prefix);
}
cur++;
}
xmlFree(nsList);
xmlFree(ename);
return((xmlAttrPtr) attrDecl);
}
}
#endif /* LIBXML_TREE_ENABLED */
return(NULL);
}
/**
* xmlGetProp:
* @node: the node
* @name: the attribute name
*
* Search and get the value of an attribute associated to a node
* This does the entity substitution.
* This function looks in DTD attribute declaration for #FIXED or
* default declaration values unless DTD use has been turned off.
* NOTE: this function acts independently of namespaces associated
* to the attribute. Use xmlGetNsProp() or xmlGetNoNsProp()
* for namespace aware processing.
*
* Returns the attribute value or NULL if not found.
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlGetProp(xmlNodePtr node, const xmlChar *name) {
xmlAttrPtr prop;
xmlDocPtr doc;
if ((node == NULL) || (name == NULL)) return(NULL);
/*
* Check on the properties attached to the node
*/
prop = node->properties;
while (prop != NULL) {
if (xmlStrEqual(prop->name, name)) {
xmlChar *ret;
ret = xmlNodeListGetString(node->doc, prop->children, 1);
if (ret == NULL) return(xmlStrdup((xmlChar *)""));
return(ret);
}
prop = prop->next;
}
if (!xmlCheckDTD) return(NULL);
/*
* Check if there is a default declaration in the internal
* or external subsets
*/
doc = node->doc;
if (doc != NULL) {
xmlAttributePtr attrDecl;
if (doc->intSubset != NULL) {
attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
if ((attrDecl == NULL) && (doc->extSubset != NULL))
attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
/* return attribute declaration only if a default value is given
(that includes #FIXED declarations) */
return(xmlStrdup(attrDecl->defaultValue));
}
}
return(NULL);
}
/**
* xmlGetNoNsProp:
* @node: the node
* @name: the attribute name
*
* Search and get the value of an attribute associated to a node
* This does the entity substitution.
* This function looks in DTD attribute declaration for #FIXED or
* default declaration values unless DTD use has been turned off.
* This function is similar to xmlGetProp except it will accept only
* an attribute in no namespace.
*
* Returns the attribute value or NULL if not found.
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlGetNoNsProp(xmlNodePtr node, const xmlChar *name) {
xmlAttrPtr prop;
xmlDocPtr doc;
if ((node == NULL) || (name == NULL)) return(NULL);
/*
* Check on the properties attached to the node
*/
prop = node->properties;
while (prop != NULL) {
if ((prop->ns == NULL) && (xmlStrEqual(prop->name, name))) {
xmlChar *ret;
ret = xmlNodeListGetString(node->doc, prop->children, 1);
if (ret == NULL) return(xmlStrdup((xmlChar *)""));
return(ret);
}
prop = prop->next;
}
if (!xmlCheckDTD) return(NULL);
/*
* Check if there is a default declaration in the internal
* or external subsets
*/
doc = node->doc;
if (doc != NULL) {
xmlAttributePtr attrDecl;
if (doc->intSubset != NULL) {
attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
if ((attrDecl == NULL) && (doc->extSubset != NULL))
attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
/* return attribute declaration only if a default value is given
(that includes #FIXED declarations) */
return(xmlStrdup(attrDecl->defaultValue));
}
}
return(NULL);
}
/**
* xmlGetNsProp:
* @node: the node
* @name: the attribute name
* @nameSpace: the URI of the namespace
*
* Search and get the value of an attribute associated to a node
* This attribute has to be anchored in the namespace specified.
* This does the entity substitution.
* This function looks in DTD attribute declaration for #FIXED or
* default declaration values unless DTD use has been turned off.
*
* Returns the attribute value or NULL if not found.
* It's up to the caller to free the memory with xmlFree().
*/
xmlChar *
xmlGetNsProp(xmlNodePtr node, const xmlChar *name, const xmlChar *nameSpace) {
xmlAttrPtr prop;
xmlDocPtr doc;
xmlNsPtr ns;
if (node == NULL)
return(NULL);
prop = node->properties;
if (nameSpace == NULL)
return(xmlGetNoNsProp(node, name));
while (prop != NULL) {
/*
* One need to have
* - same attribute names
* - and the attribute carrying that namespace
*/
if ((xmlStrEqual(prop->name, name)) &&
((prop->ns != NULL) &&
(xmlStrEqual(prop->ns->href, nameSpace)))) {
xmlChar *ret;
ret = xmlNodeListGetString(node->doc, prop->children, 1);
if (ret == NULL) return(xmlStrdup((xmlChar *)""));
return(ret);
}
prop = prop->next;
}
if (!xmlCheckDTD) return(NULL);
/*
* Check if there is a default declaration in the internal
* or external subsets
*/
doc = node->doc;
if (doc != NULL) {
if (doc->intSubset != NULL) {
xmlAttributePtr attrDecl;
attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
if ((attrDecl == NULL) && (doc->extSubset != NULL))
attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
if ((attrDecl != NULL) && (attrDecl->prefix != NULL)) {
/*
* The DTD declaration only allows a prefix search
*/
ns = xmlSearchNs(doc, node, attrDecl->prefix);
if ((ns != NULL) && (xmlStrEqual(ns->href, nameSpace)))
return(xmlStrdup(attrDecl->defaultValue));
}
}
}
return(NULL);
}
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/**
* xmlUnsetProp:
* @node: the node
* @name: the attribute name
*
* Remove an attribute carried by a node.
* Returns 0 if successful, -1 if not found
*/
int
xmlUnsetProp(xmlNodePtr node, const xmlChar *name) {
xmlAttrPtr prop, prev = NULL;;
if ((node == NULL) || (name == NULL))
return(-1);
prop = node->properties;
while (prop != NULL) {
if ((xmlStrEqual(prop->name, name)) &&
(prop->ns == NULL)) {
if (prev == NULL)
node->properties = prop->next;
else
prev->next = prop->next;
xmlFreeProp(prop);
return(0);
}
prev = prop;
prop = prop->next;
}
return(-1);
}
/**
* xmlUnsetNsProp:
* @node: the node
* @ns: the namespace definition
* @name: the attribute name
*
* Remove an attribute carried by a node.
* Returns 0 if successful, -1 if not found
*/
int
xmlUnsetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name) {
xmlAttrPtr prop = node->properties, prev = NULL;;
if ((node == NULL) || (name == NULL))
return(-1);
if (ns == NULL)
return(xmlUnsetProp(node, name));
if (ns->href == NULL)
return(-1);
while (prop != NULL) {
if ((xmlStrEqual(prop->name, name)) &&
(prop->ns != NULL) && (xmlStrEqual(prop->ns->href, ns->href))) {
if (prev == NULL)
node->properties = prop->next;
else
prev->next = prop->next;
xmlFreeProp(prop);
return(0);
}
prev = prop;
prop = prop->next;
}
return(-1);
}
#endif
#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED) || defined(LIBXML_HTML_ENABLED)
/**
* xmlSetProp:
* @node: the node
* @name: the attribute name
* @value: the attribute value
*
* Set (or reset) an attribute carried by a node.
* Returns the attribute pointer.
*/
xmlAttrPtr
xmlSetProp(xmlNodePtr node, const xmlChar *name, const xmlChar *value) {
xmlAttrPtr prop;
xmlDocPtr doc;
if ((node == NULL) || (name == NULL) || (node->type != XML_ELEMENT_NODE))
return(NULL);
doc = node->doc;
prop = node->properties;
while (prop != NULL) {
if ((xmlStrEqual(prop->name, name)) &&
(prop->ns == NULL)){
xmlNodePtr oldprop = prop->children;
prop->children = NULL;
prop->last = NULL;
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(node->doc, value);
prop->children = xmlStringGetNodeList(node->doc, buffer);
prop->last = NULL;
prop->doc = doc;
tmp = prop->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) prop;
tmp->doc = doc;
if (tmp->next == NULL)
prop->last = tmp;
tmp = tmp->next;
}
xmlFree(buffer);
}
if (oldprop != NULL)
xmlFreeNodeList(oldprop);
return(prop);
}
prop = prop->next;
}
prop = xmlNewProp(node, name, value);
return(prop);
}
/**
* xmlSetNsProp:
* @node: the node
* @ns: the namespace definition
* @name: the attribute name
* @value: the attribute value
*
* Set (or reset) an attribute carried by a node.
* The ns structure must be in scope, this is not checked.
*
* Returns the attribute pointer.
*/
xmlAttrPtr
xmlSetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,
const xmlChar *value) {
xmlAttrPtr prop;
if ((node == NULL) || (name == NULL))
return(NULL);
if (ns == NULL)
return(xmlSetProp(node, name, value));
if (ns->href == NULL)
return(NULL);
prop = node->properties;
while (prop != NULL) {
/*
* One need to have
* - same attribute names
* - and the attribute carrying that namespace
*/
if ((xmlStrEqual(prop->name, name)) &&
(prop->ns != NULL) && (xmlStrEqual(prop->ns->href, ns->href))) {
if (prop->children != NULL)
xmlFreeNodeList(prop->children);
prop->children = NULL;
prop->last = NULL;
prop->ns = ns;
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(node->doc, value);
prop->children = xmlStringGetNodeList(node->doc, buffer);
prop->last = NULL;
tmp = prop->children;
while (tmp != NULL) {
tmp->parent = (xmlNodePtr) prop;
if (tmp->next == NULL)
prop->last = tmp;
tmp = tmp->next;
}
xmlFree(buffer);
}
return(prop);
}
prop = prop->next;
}
prop = xmlNewNsProp(node, ns, name, value);
return(prop);
}
#endif /* LIBXML_TREE_ENABLED */
/**
* xmlNodeIsText:
* @node: the node
*
* Is this node a Text node ?
* Returns 1 yes, 0 no
*/
int
xmlNodeIsText(xmlNodePtr node) {
if (node == NULL) return(0);
if (node->type == XML_TEXT_NODE) return(1);
return(0);
}
/**
* xmlIsBlankNode:
* @node: the node
*
* Checks whether this node is an empty or whitespace only
* (and possibly ignorable) text-node.
*
* Returns 1 yes, 0 no
*/
int
xmlIsBlankNode(xmlNodePtr node) {
const xmlChar *cur;
if (node == NULL) return(0);
if ((node->type != XML_TEXT_NODE) &&
(node->type != XML_CDATA_SECTION_NODE))
return(0);
if (node->content == NULL) return(1);
cur = node->content;
while (*cur != 0) {
if (!IS_BLANK_CH(*cur)) return(0);
cur++;
}
return(1);
}
/**
* xmlTextConcat:
* @node: the node
* @content: the content
* @len: @content length
*
* Concat the given string at the end of the existing node content
*
* Returns -1 in case of error, 0 otherwise
*/
int
xmlTextConcat(xmlNodePtr node, const xmlChar *content, int len) {
if (node == NULL) return(-1);
if ((node->type != XML_TEXT_NODE) &&
(node->type != XML_CDATA_SECTION_NODE)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlTextConcat: node is not text nor CDATA\n");
#endif
return(-1);
}
/* need to check if content is currently in the dictionary */
if ((node->doc != NULL) && (node->doc->dict != NULL) &&
xmlDictOwns(node->doc->dict, node->content)) {
node->content = xmlStrncatNew(node->content, content, len);
} else {
node->content = xmlStrncat(node->content, content, len);
}
if (node->content == NULL)
return(-1);
return(0);
}
/************************************************************************
* *
* Output : to a FILE or in memory *
* *
************************************************************************/
/**
* xmlBufferCreate:
*
* routine to create an XML buffer.
* returns the new structure.
*/
xmlBufferPtr
xmlBufferCreate(void) {
xmlBufferPtr ret;
ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
if (ret == NULL) {
xmlTreeErrMemory("creating buffer");
return(NULL);
}
ret->use = 0;
ret->size = xmlDefaultBufferSize;
ret->alloc = xmlBufferAllocScheme;
ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
if (ret->content == NULL) {
xmlTreeErrMemory("creating buffer");
xmlFree(ret);
return(NULL);
}
ret->content[0] = 0;
return(ret);
}
/**
* xmlBufferCreateSize:
* @size: initial size of buffer
*
* routine to create an XML buffer.
* returns the new structure.
*/
xmlBufferPtr
xmlBufferCreateSize(size_t size) {
xmlBufferPtr ret;
ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
if (ret == NULL) {
xmlTreeErrMemory("creating buffer");
return(NULL);
}
ret->use = 0;
ret->alloc = xmlBufferAllocScheme;
ret->size = (size ? size+2 : 0); /* +1 for ending null */
if (ret->size){
ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
if (ret->content == NULL) {
xmlTreeErrMemory("creating buffer");
xmlFree(ret);
return(NULL);
}
ret->content[0] = 0;
} else
ret->content = NULL;
return(ret);
}
/**
* xmlBufferCreateStatic:
* @mem: the memory area
* @size: the size in byte
*
* routine to create an XML buffer from an immutable memory area.
* The area won't be modified nor copied, and is expected to be
* present until the end of the buffer lifetime.
*
* returns the new structure.
*/
xmlBufferPtr
xmlBufferCreateStatic(void *mem, size_t size) {
xmlBufferPtr ret;
if ((mem == NULL) || (size == 0))
return(NULL);
ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
if (ret == NULL) {
xmlTreeErrMemory("creating buffer");
return(NULL);
}
ret->use = size;
ret->size = size;
ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;
ret->content = (xmlChar *) mem;
return(ret);
}
/**
* xmlBufferSetAllocationScheme:
* @buf: the buffer to tune
* @scheme: allocation scheme to use
*
* Sets the allocation scheme for this buffer
*/
void
xmlBufferSetAllocationScheme(xmlBufferPtr buf,
xmlBufferAllocationScheme scheme) {
if (buf == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferSetAllocationScheme: buf == NULL\n");
#endif
return;
}
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
buf->alloc = scheme;
}
/**
* xmlBufferFree:
* @buf: the buffer to free
*
* Frees an XML buffer. It frees both the content and the structure which
* encapsulate it.
*/
void
xmlBufferFree(xmlBufferPtr buf) {
if (buf == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferFree: buf == NULL\n");
#endif
return;
}
if ((buf->content != NULL) &&
(buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {
xmlFree(buf->content);
}
xmlFree(buf);
}
/**
* xmlBufferEmpty:
* @buf: the buffer
*
* empty a buffer.
*/
void
xmlBufferEmpty(xmlBufferPtr buf) {
if (buf->content == NULL) return;
buf->use = 0;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
buf->content = BAD_CAST "";
} else {
memset(buf->content, 0, buf->size);
}
}
/**
* xmlBufferShrink:
* @buf: the buffer to dump
* @len: the number of xmlChar to remove
*
* Remove the beginning of an XML buffer.
*
* Returns the number of #xmlChar removed, or -1 in case of failure.
*/
int
xmlBufferShrink(xmlBufferPtr buf, unsigned int len) {
if (len == 0) return(0);
if (len > buf->use) return(-1);
buf->use -= len;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
buf->content += len;
} else {
memmove(buf->content, &buf->content[len], buf->use * sizeof(xmlChar));
buf->content[buf->use] = 0;
}
return(len);
}
/**
* xmlBufferGrow:
* @buf: the buffer
* @len: the minimum free size to allocate
*
* Grow the available space of an XML buffer.
*
* Returns the new available space or -1 in case of error
*/
int
xmlBufferGrow(xmlBufferPtr buf, unsigned int len) {
int size;
xmlChar *newbuf;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
if (len + buf->use < buf->size) return(0);
/*
* Windows has a BIG problem on realloc timing, so we try to double
* the buffer size (if that's enough) (bug 146697)
*/
#ifdef WIN32
if (buf->size > len)
size = buf->size * 2;
else
size = buf->use + len + 100;
#else
size = buf->use + len + 100;
#endif
newbuf = (xmlChar *) xmlRealloc(buf->content, size);
if (newbuf == NULL) {
xmlTreeErrMemory("growing buffer");
return(-1);
}
buf->content = newbuf;
buf->size = size;
return(buf->size - buf->use);
}
/**
* xmlBufferDump:
* @file: the file output
* @buf: the buffer to dump
*
* Dumps an XML buffer to a FILE *.
* Returns the number of #xmlChar written
*/
int
xmlBufferDump(FILE *file, xmlBufferPtr buf) {
int ret;
if (buf == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferDump: buf == NULL\n");
#endif
return(0);
}
if (buf->content == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferDump: buf->content == NULL\n");
#endif
return(0);
}
if (file == NULL)
file = stdout;
ret = fwrite(buf->content, sizeof(xmlChar), buf->use, file);
return(ret);
}
/**
* xmlBufferContent:
* @buf: the buffer
*
* Function to extract the content of a buffer
*
* Returns the internal content
*/
const xmlChar *
xmlBufferContent(const xmlBufferPtr buf)
{
if(!buf)
return NULL;
return buf->content;
}
/**
* xmlBufferLength:
* @buf: the buffer
*
* Function to get the length of a buffer
*
* Returns the length of data in the internal content
*/
int
xmlBufferLength(const xmlBufferPtr buf)
{
if(!buf)
return 0;
return buf->use;
}
/**
* xmlBufferResize:
* @buf: the buffer to resize
* @size: the desired size
*
* Resize a buffer to accommodate minimum size of @size.
*
* Returns 0 in case of problems, 1 otherwise
*/
int
xmlBufferResize(xmlBufferPtr buf, unsigned int size)
{
unsigned int newSize;
xmlChar* rebuf = NULL;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
/* Don't resize if we don't have to */
if (size < buf->size)
return 1;
/* figure out new size */
switch (buf->alloc){
case XML_BUFFER_ALLOC_DOUBLEIT:
/*take care of empty case*/
newSize = (buf->size ? buf->size*2 : size + 10);
while (size > newSize) newSize *= 2;
break;
case XML_BUFFER_ALLOC_EXACT:
newSize = size+10;
break;
default:
newSize = size+10;
break;
}
if (buf->content == NULL)
rebuf = (xmlChar *) xmlMallocAtomic(newSize * sizeof(xmlChar));
else if (buf->size - buf->use < 100) {
rebuf = (xmlChar *) xmlRealloc(buf->content,
newSize * sizeof(xmlChar));
} else {
/*
* if we are reallocating a buffer far from being full, it's
* better to make a new allocation and copy only the used range
* and free the old one.
*/
rebuf = (xmlChar *) xmlMallocAtomic(newSize * sizeof(xmlChar));
if (rebuf != NULL) {
memcpy(rebuf, buf->content, buf->use);
xmlFree(buf->content);
rebuf[buf->use] = 0;
}
}
if (rebuf == NULL) {
xmlTreeErrMemory("growing buffer");
return 0;
}
buf->content = rebuf;
buf->size = newSize;
return 1;
}
/**
* xmlBufferAdd:
* @buf: the buffer to dump
* @str: the #xmlChar string
* @len: the number of #xmlChar to add
*
* Add a string range to an XML buffer. if len == -1, the length of
* str is recomputed.
*
* Returns 0 successful, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {
unsigned int needSize;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: str == NULL\n");
#endif
return -1;
}
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
if (len < -1) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: len < 0\n");
#endif
return -1;
}
if (len == 0) return 0;
if (len < 0)
len = xmlStrlen(str);
if (len <= 0) return -1;
needSize = buf->use + len + 2;
if (needSize > buf->size){
if (!xmlBufferResize(buf, needSize)){
xmlTreeErrMemory("growing buffer");
return XML_ERR_NO_MEMORY;
}
}
memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));
buf->use += len;
buf->content[buf->use] = 0;
return 0;
}
/**
* xmlBufferAddHead:
* @buf: the buffer
* @str: the #xmlChar string
* @len: the number of #xmlChar to add
*
* Add a string range to the beginning of an XML buffer.
* if len == -1, the length of @str is recomputed.
*
* Returns 0 successful, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
unsigned int needSize;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAddHead: str == NULL\n");
#endif
return -1;
}
if (len < -1) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAddHead: len < 0\n");
#endif
return -1;
}
if (len == 0) return 0;
if (len < 0)
len = xmlStrlen(str);
if (len <= 0) return -1;
needSize = buf->use + len + 2;
if (needSize > buf->size){
if (!xmlBufferResize(buf, needSize)){
xmlTreeErrMemory("growing buffer");
return XML_ERR_NO_MEMORY;
}
}
memmove(&buf->content[len], &buf->content[0], buf->use * sizeof(xmlChar));
memmove(&buf->content[0], str, len * sizeof(xmlChar));
buf->use += len;
buf->content[buf->use] = 0;
return 0;
}
/**
* xmlBufferCat:
* @buf: the buffer to add to
* @str: the #xmlChar string
*
* Append a zero terminated string to an XML buffer.
*
* Returns 0 successful, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
if (str == NULL) return -1;
return xmlBufferAdd(buf, str, -1);
}
/**
* xmlBufferCCat:
* @buf: the buffer to dump
* @str: the C char string
*
* Append a zero terminated C string to an XML buffer.
*
* Returns 0 successful, a positive error code number otherwise
* and -1 in case of internal or API error.
*/
int
xmlBufferCCat(xmlBufferPtr buf, const char *str) {
const char *cur;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCCat: str == NULL\n");
#endif
return -1;
}
for (cur = str;*cur != 0;cur++) {
if (buf->use + 10 >= buf->size) {
if (!xmlBufferResize(buf, buf->use+10)){
xmlTreeErrMemory("growing buffer");
return XML_ERR_NO_MEMORY;
}
}
buf->content[buf->use++] = *cur;
}
buf->content[buf->use] = 0;
return 0;
}
/**
* xmlBufferWriteCHAR:
* @buf: the XML buffer
* @string: the string to add
*
* routine which manages and grows an output buffer. This one adds
* xmlChars at the end of the buffer.
*/
void
xmlBufferWriteCHAR(xmlBufferPtr buf, const xmlChar *string) {
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
xmlBufferCat(buf, string);
}
/**
* xmlBufferWriteChar:
* @buf: the XML buffer output
* @string: the string to add
*
* routine which manage and grows an output buffer. This one add
* C chars at the end of the array.
*/
void
xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
xmlBufferCCat(buf, string);
}
/**
* xmlBufferWriteQuotedString:
* @buf: the XML buffer output
* @string: the string to add
*
* routine which manage and grows an output buffer. This one writes
* a quoted or double quoted #xmlChar string, checking first if it holds
* quote or double-quotes internally
*/
void
xmlBufferWriteQuotedString(xmlBufferPtr buf, const xmlChar *string) {
const xmlChar *cur, *base;
if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (xmlStrchr(string, '\"')) {
if (xmlStrchr(string, '\'')) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferWriteQuotedString: string contains quote and double-quotes !\n");
#endif
xmlBufferCCat(buf, "\"");
base = cur = string;
while(*cur != 0){
if(*cur == '"'){
if (base != cur)
xmlBufferAdd(buf, base, cur - base);
xmlBufferAdd(buf, BAD_CAST "&quot;", 6);
cur++;
base = cur;
}
else {
cur++;
}
}
if (base != cur)
xmlBufferAdd(buf, base, cur - base);
xmlBufferCCat(buf, "\"");
}
else{
xmlBufferCCat(buf, "\'");
xmlBufferCat(buf, string);
xmlBufferCCat(buf, "\'");
}
} else {
xmlBufferCCat(buf, "\"");
xmlBufferCat(buf, string);
xmlBufferCCat(buf, "\"");
}
}
/**
* xmlGetDocCompressMode:
* @doc: the document
*
* get the compression ratio for a document, ZLIB based
* Returns 0 (uncompressed) to 9 (max compression)
*/
int
xmlGetDocCompressMode (xmlDocPtr doc) {
if (doc == NULL) return(-1);
return(doc->compression);
}
/**
* xmlSetDocCompressMode:
* @doc: the document
* @mode: the compression ratio
*
* set the compression ratio for a document, ZLIB based
* Correct values: 0 (uncompressed) to 9 (max compression)
*/
void
xmlSetDocCompressMode (xmlDocPtr doc, int mode) {
if (doc == NULL) return;
if (mode < 0) doc->compression = 0;
else if (mode > 9) doc->compression = 9;
else doc->compression = mode;
}
/**
* xmlGetCompressMode:
*
* get the default compression mode used, ZLIB based.
* Returns 0 (uncompressed) to 9 (max compression)
*/
int
xmlGetCompressMode(void)
{
return (xmlCompressMode);
}
/**
* xmlSetCompressMode:
* @mode: the compression ratio
*
* set the default compression mode used, ZLIB based
* Correct values: 0 (uncompressed) to 9 (max compression)
*/
void
xmlSetCompressMode(int mode) {
if (mode < 0) xmlCompressMode = 0;
else if (mode > 9) xmlCompressMode = 9;
else xmlCompressMode = mode;
}
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