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gerrit-public.fairphone.software / fp2-dev / platform / external / libxml2 / 2f36224e54d7d9875da4c22740f7f51632d1a265 / . / tree.c
blob: a33658e2a35d87389c86d08a60c7efc59ca500ed [file] [log] [blame]
/*
* tree.c : implemetation of access function for an XML tree.
*
* See Copyright for the status of this software.
*
* Daniel.Veillard@w3.org
*
* 14 Nov 2000 ht - Changed the name of function xmlBufferWriteChar under VMS
* as it was similar to xmlBufferWriteCHAR when compiling without case
* sensitivity.
*
*/
#ifdef WIN32
#include "win32config.h"
#else
#include "config.h"
#endif
#include <stdio.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/entities.h>
#include <libxml/valid.h>
#include <libxml/xmlerror.h>
xmlChar xmlStringText[] = { 't', 'e', 'x', 't', 0 };
xmlChar xmlStringTextNoenc[] =
{ 't', 'e', 'x', 't', 'n', 'o', 'e', 'n', 'c', 0 };
xmlChar xmlStringComment[] = { 'c', 'o', 'm', 'm', 'e', 'n', 't', 0 };
int oldXMLWDcompatibility = 0;
int xmlIndentTreeOutput = 0;
xmlBufferAllocationScheme xmlBufferAllocScheme = XML_BUFFER_ALLOC_EXACT;
static int xmlCompressMode = 0;
static int xmlCheckDTD = 1;
int xmlSaveNoEmptyTags = 0;
#define IS_BLANK(c) \
(((c) == '\n') || ((c) == '\r') || ((c) == '\t') || ((c) == ' '))
#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 */
/************************************************************************
* *
* 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() {
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 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);
/*
* Allocate a new Namespace and fill the fields.
*/
cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (cur == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewNs : malloc failed\n");
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);
MEM_CLEANUP(cur, sizeof(xmlNs));
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewDtd : malloc failed\n");
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;
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 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewDtd : malloc failed\n");
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->intSubset = cur;
cur->parent = doc;
cur->doc = doc;
if (doc->children == NULL) {
doc->children = (xmlNodePtr) cur;
doc->last = (xmlNodePtr) cur;
} else {
xmlNodePtr prev;
if (doc->type == XML_HTML_DOCUMENT_NODE) {
prev = doc->children;
prev->prev = (xmlNodePtr) cur;
cur->next = prev;
doc->children = (xmlNodePtr) cur;
} else {
prev = doc->last;
prev->next = (xmlNodePtr) cur;
cur->prev = prev;
doc->last = (xmlNodePtr) cur;
}
}
}
return(cur);
}
/**
* xmlFreeDtd:
* @cur: the DTD structure to free up
*
* Free a DTD structure.
*/
void
xmlFreeDtd(xmlDtdPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeDtd : DTD == NULL\n");
#endif
return;
}
if (cur->children != NULL) {
xmlNodePtr next, c = cur->children;
/*
* Cleanup all the DTD comments they are not in the Dtd
* indexes.
*/
while (c != NULL) {
next = c->next;
if (c->type == XML_COMMENT_NODE) {
xmlUnlinkNode(c);
xmlFreeNode(c);
}
c = next;
}
}
if (cur->name != NULL) xmlFree((char *) cur->name);
if (cur->SystemID != NULL) xmlFree((char *) cur->SystemID);
if (cur->ExternalID != NULL) xmlFree((char *) 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);
MEM_CLEANUP(cur, sizeof(xmlDtd));
xmlFree(cur);
}
/**
* xmlNewDoc:
* @version: xmlChar string giving the version of XML "1.0"
*
* 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewDoc : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlDoc));
cur->type = XML_DOCUMENT_NODE;
cur->version = xmlStrdup(version);
cur->standalone = -1;
cur->compression = -1; /* not initialized */
cur->doc = cur;
return(cur);
}
/**
* xmlFreeDoc:
* @cur: pointer to the document
* @:
*
* Free up all the structures used by a document, tree included.
*/
void
xmlFreeDoc(xmlDocPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeDoc : document == NULL\n");
#endif
return;
}
if (cur->version != NULL) xmlFree((char *) cur->version);
if (cur->name != NULL) xmlFree((char *) cur->name);
if (cur->encoding != NULL) xmlFree((char *) cur->encoding);
if (cur->children != NULL) xmlFreeNodeList(cur->children);
if (cur->intSubset != NULL) xmlFreeDtd(cur->intSubset);
if (cur->extSubset != NULL) xmlFreeDtd(cur->extSubset);
if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);
if (cur->ids != NULL) xmlFreeIDTable((xmlIDTablePtr) cur->ids);
if (cur->refs != NULL) xmlFreeRefTable((xmlRefTablePtr) cur->refs);
if (cur->URL != NULL) xmlFree((char *) cur->URL);
MEM_CLEANUP(cur, sizeof(xmlDoc));
xmlFree(cur);
}
/**
* 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;
const xmlChar *q;
xmlEntityPtr ent;
if (value == NULL) return(NULL);
q = cur;
while ((*cur != 0) && (cur - value < len)) {
if (*cur == '&') {
/*
* 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;
}
}
}
/*
* Read the entity string
*/
cur++;
q = cur;
while ((*cur != 0) && (cur - value < len) && (*cur != ';')) cur++;
if ((*cur == 0) || (cur - value >= len)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlStringLenGetNodeList: unterminated entity %30s\n", q);
#endif
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
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);
}
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
xmlFree(val);
}
cur++;
q = cur;
} else
cur++;
}
if (cur != q) {
/*
* 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->next = node;
node->prev = last;
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 == '&') {
/*
* 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;
}
}
}
/*
* Read the entity string
*/
cur++;
q = cur;
while ((*cur != 0) && (*cur != ';')) cur++;
if (*cur == 0) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlStringGetNodeList: unterminated entity %30s\n", q);
#endif
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
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);
}
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
xmlFree(val);
}
cur++;
q = cur;
} else
cur++;
}
if (cur != q) {
/*
* 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->next = node;
node->prev = last;
last = node;
}
}
}
return(ret);
}
/**
* xmlNodeListGetString:
* @doc: the document
* @list: a Node list
* @inLine: should we replace entity contents or show their external form
*
* Returns 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 calller must free it.
*/
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) {
#ifndef XML_USE_BUFFER_CONTENT
ret = xmlStrcat(ret, node->content);
#else
ret = xmlStrcat(ret, xmlBufferContent(node->content));
#endif
} else {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
buffer = xmlEncodeEntitiesReentrant(doc, node->content);
#else
buffer = xmlEncodeEntitiesReentrant(doc,
xmlBufferContent(node->content));
#endif
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)
ret = xmlStrcat(ret, ent->content);
else {
#ifndef XML_USE_BUFFER_CONTENT
ret = xmlStrcat(ret, node->content);
#else
ret = xmlStrcat(ret, xmlBufferContent(node->content));
#endif
}
} 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 : invalide node type %d\n",
node->type);
}
#endif
node = node->next;
}
return(ret);
}
/**
* xmlNodeListGetRawString:
* @doc: the document
* @list: a Node list
* @inLine: should we replace entity contents or show their external form
*
* Returns 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 calller must free it.
*/
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) {
if (inLine) {
#ifndef XML_USE_BUFFER_CONTENT
ret = xmlStrcat(ret, node->content);
#else
ret = xmlStrcat(ret, xmlBufferContent(node->content));
#endif
} else {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
buffer = xmlEncodeSpecialChars(doc, node->content);
#else
buffer = xmlEncodeSpecialChars(doc,
xmlBufferContent(node->content));
#endif
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)
ret = xmlStrcat(ret, ent->content);
else {
#ifndef XML_USE_BUFFER_CONTENT
ret = xmlStrcat(ret, node->content);
#else
ret = xmlStrcat(ret, xmlBufferContent(node->content));
#endif
}
} 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 : invalide node type %d\n",
node->type);
}
#endif
node = node->next;
}
return(ret);
}
/**
* 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);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewProp : malloc failed\n");
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;
}
}
return(cur);
}
/**
* 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;
if (name == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNewProp : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewProp : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlAttr));
cur->type = XML_ATTRIBUTE_NODE;
cur->parent = node;
if (node != NULL)
cur->doc = node->doc;
cur->ns = ns;
cur->name = xmlStrdup(name);
if (value != NULL) {
xmlChar *buffer;
xmlNodePtr tmp;
buffer = xmlEncodeEntitiesReentrant(node->doc, value);
cur->children = xmlStringGetNodeList(node->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;
}
}
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,
"xmlNewProp : name == NULL\n");
#endif
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
if (cur == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewProp : malloc failed\n");
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;
}
}
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) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreePropList : property == NULL\n");
#endif
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) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeProp : property == NULL\n");
#endif
return;
}
/* Check for ID removal -> leading to invalid references ! */
if ((cur->parent != NULL) &&
(xmlIsID(cur->parent->doc, cur->parent, cur)))
xmlRemoveID(cur->parent->doc, cur);
if (cur->name != NULL) xmlFree((char *) cur->name);
if (cur->children != NULL) xmlFreeNodeList(cur->children);
MEM_CLEANUP(cur, sizeof(xmlAttr));
xmlFree(cur);
}
/**
* 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);
}
/**
* 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewPI : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_PI_NODE;
cur->name = xmlStrdup(name);
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrdup(content);
#else
cur->content = xmlBufferCreateSize(0);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, -1);
#endif
}
return(cur);
}
/**
* xmlNewNode:
* @ns: namespace if any
* @name: the node name
*
* Creation of a new node element. @ns is optionnal (NULL).
*
* Returns a pointer to the new node object.
*/
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewNode : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_ELEMENT_NODE;
cur->name = xmlStrdup(name);
cur->ns = ns;
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 optionnal (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);
}
/**
* 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 optionnal (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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewDocFragment : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_DOCUMENT_FRAG_NODE;
cur->doc = doc;
return(cur);
}
/**
* 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewText : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_TEXT_NODE;
cur->name = xmlStringText;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrdup(content);
#else
cur->content = xmlBufferCreateSize(0);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, -1);
#endif
}
return(cur);
}
/**
* 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 optionnal (NULL). If content is non NULL,
* a child TEXT node will be created containing the string content.
*
* 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 (ns == NULL)
cur = xmlNewDocRawNode(parent->doc, parent->ns, name, content);
else
cur = xmlNewDocRawNode(parent->doc, ns, name, content);
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);
}
/**
* 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewText : malloc failed\n");
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);
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewText : malloc failed\n");
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) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = ent->content;
#else
/*
* CJN 11.18.99 this might be a problem, since the xmlBuffer gets
* a copy of this pointer. Let's hope we don't manipulate it
* later
*/
cur->content = xmlBufferCreateSize(0);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
if (ent->content != NULL)
xmlBufferAdd(cur->content, ent->content, -1);
#endif
/*
* 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;
}
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 lenght
* 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewText : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_TEXT_NODE;
cur->name = xmlStringText;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrndup(content, len);
#else
cur->content = xmlBufferCreateSize(len);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, len);
#endif
}
return(cur);
}
/**
* xmlNewDocTextLen:
* @doc: the document
* @content: the text content
* @len: the text len.
*
* Creation of a new text node with an extra content lenght 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewComment : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_COMMENT_NODE;
cur->name = xmlStringComment;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrdup(content);
#else
cur->content = xmlBufferCreateSize(0);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, -1);
#endif
}
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewCDataBlock : malloc failed\n");
return(NULL);
}
memset(cur, 0, sizeof(xmlNode));
cur->type = XML_CDATA_SECTION_NODE;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrndup(content, len);
#else
cur->content = xmlBufferCreateSize(len);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, len);
#endif
}
return(cur);
}
/**
* xmlNewDocComment:
* @doc: the document
* @content: the comment content
*
* Creation of a new node containing a commentwithin 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) {
if (tree == NULL)
return;
if (tree->type == XML_ENTITY_DECL)
return;
if (tree->doc != doc) {
if (tree->children != NULL)
xmlSetListDoc(tree->children, doc);
tree->doc = doc;
}
}
/**
* xmlSetListDoc:
* @tree: 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;
}
}
/**
* 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 optionnal (NULL). 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 allow entities
* references, but XML special chars need to be escaped first by using
* xmlEncodeEntitiesReentrant(). Use xmlNewTextChild() if entities
* support is not needed.
*
* 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 (ns == NULL)
cur = xmlNewDocNode(parent->doc, parent->ns, name, content);
else
cur = xmlNewDocNode(parent->doc, ns, name, content);
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);
}
/**
* xmlAddNextSibling:
* @cur: the child node
* @elem: the new node
*
* Add a new element @elem as the next siblings of @cur
* If the new element was already inserted in a document it is
* first unlinked from its existing context.
* As a result of text merging @elem may be freed.
*
* Returns the new element 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) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(cur, elem->content);
#else
xmlNodeAddContent(cur, xmlBufferContent(elem->content));
#endif
xmlFreeNode(elem);
return(cur);
}
if ((cur->next != NULL) && (cur->type == XML_TEXT_NODE)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlChar *tmp;
tmp = xmlStrdup(elem->content);
tmp = xmlStrcat(tmp, cur->next->content);
xmlNodeSetContent(cur->next, tmp);
xmlFree(tmp);
#else
xmlBufferAddHead(cur->next->content,
xmlBufferContent(elem->content),
xmlBufferLength(elem->content));
#endif
xmlFreeNode(elem);
return(cur->next);
}
}
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->parent->last = elem;
return(elem);
}
/**
* xmlAddPrevSibling:
* @cur: the child node
* @elem: the new node
*
* Add a new element @elem as the previous 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
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) {
#ifndef XML_USE_BUFFER_CONTENT
xmlChar *tmp;
tmp = xmlStrdup(elem->content);
tmp = xmlStrcat(tmp, cur->content);
xmlNodeSetContent(cur, tmp);
xmlFree(tmp);
#else
xmlBufferAddHead(cur->content, xmlBufferContent(elem->content),
xmlBufferLength(elem->content));
#endif
xmlFreeNode(elem);
return(cur);
}
if ((cur->prev != NULL) && (cur->prev->type == XML_TEXT_NODE)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(cur->prev, elem->content);
#else
xmlNodeAddContent(cur->prev, xmlBufferContent(elem->content));
#endif
xmlFreeNode(elem);
return(cur->prev);
}
}
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) && (elem->parent->children == cur))
elem->parent->children = elem;
return(elem);
}
/**
* 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)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(cur, elem->content);
#else
xmlNodeAddContent(cur, xmlBufferContent(elem->content));
#endif
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,
"xmlAddChild : parent == NULL\n");
#endif
return(NULL);
}
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAddChild : 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)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(parent->last, cur->content);
#else
xmlNodeAddContent(parent->last, xmlBufferContent(cur->content));
#endif
/*
* 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 child element, to @parent, at the end of the child list
* merging adjacent TEXT nodes (in which case @cur is freed)
* 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->doc != NULL) && (parent->doc != NULL) &&
(cur->doc != parent->doc)) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"Elements moved to a different document\n");
#endif
}
/*
* If cur is a TEXT node, merge its content with adjacent TEXT nodes
* or with parent->content if parent->content != NULL.
* cur is then freed.
*/
if (cur->type == XML_TEXT_NODE) {
if (((parent->type == XML_ELEMENT_NODE) ||
(parent->type == XML_TEXT_NODE)) &&
(parent->content != NULL)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(parent, cur->content);
#else
xmlNodeAddContent(parent, xmlBufferContent(cur->content));
#endif
xmlFreeNode(cur);
return(parent);
}
if ((parent->last != NULL) && (parent->last->type == XML_TEXT_NODE) &&
(parent->last->name == cur->name)) {
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(parent->last, cur->content);
#else
xmlNodeAddContent(parent->last, xmlBufferContent(cur->content));
#endif
xmlFreeNode(cur);
return(parent->last);
}
}
/*
* add the new element at the end of the children list.
*/
cur->parent = parent;
if (cur->doc != parent->doc) {
xmlSetTreeDoc(cur, parent->doc);
}
/*
* Handle the case where parent->content != NULL, in that case it will
* create a intermediate TEXT node.
*/
if (((parent->type == XML_ELEMENT_NODE) || (parent->type == XML_TEXT_NODE)) &&
(parent->content != NULL)) {
xmlNodePtr text;
#ifndef XML_USE_BUFFER_CONTENT
text = xmlNewDocText(parent->doc, parent->content);
#else
text = xmlNewDocText(parent->doc, xmlBufferContent(parent->content));
#endif
if (text != NULL) {
text->next = parent->children;
if (text->next != NULL)
text->next->prev = text;
parent->children = text;
UPDATE_LAST_CHILD_AND_PARENT(parent)
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(parent->content);
#else
xmlBufferFree(parent->content);
#endif
parent->content = NULL;
}
}
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;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeNodeList : node == NULL\n");
#endif
return;
}
while (cur != NULL) {
next = cur->next;
xmlFreeNode(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) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlFreeNode : node == NULL\n");
#endif
return;
}
if (cur->type == XML_DTD_NODE)
return;
cur->doc = NULL;
cur->parent = NULL;
cur->next = NULL;
cur->prev = NULL;
if ((cur->children != NULL) &&
(cur->type != XML_ENTITY_REF_NODE))
xmlFreeNodeList(cur->children);
if (cur->properties != NULL) xmlFreePropList(cur->properties);
if (cur->type != XML_ENTITY_REF_NODE)
#ifndef XML_USE_BUFFER_CONTENT
if (cur->content != NULL) xmlFree(cur->content);
#else
if (cur->content != NULL) xmlBufferFree(cur->content);
#endif
if ((cur->name != NULL) &&
(cur->name != xmlStringText) &&
(cur->name != xmlStringTextNoenc) &&
(cur->name != xmlStringComment))
xmlFree((char *) cur->name);
if (cur->nsDef != NULL) xmlFreeNsList(cur->nsDef);
MEM_CLEANUP(cur, sizeof(xmlNode));
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->parent != NULL) && (cur->parent->children == cur))
cur->parent->children = cur->next;
if ((cur->parent != NULL) && (cur->parent->last == cur))
cur->parent->last = cur->prev;
if (cur->next != NULL)
cur->next->prev = cur->prev;
if (cur->prev != NULL)
cur->prev->next = cur->next;
cur->next = cur->prev = NULL;
cur->parent = NULL;
}
/**
* xmlReplaceNode:
* @old: the old node
* @cur: the node
*
* Unlink the old node from it's 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);
}
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->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);
}
/************************************************************************
* *
* 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);
ret->ns = 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;
}
}
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 abeut the CopyNode operations !
*
* They are splitted 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
*/
static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent);
static xmlNodePtr
xmlStaticCopyNode(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,
int recursive) {
xmlNodePtr ret;
if (node == NULL) return(NULL);
/*
* Allocate a new node and fill the fields.
*/
ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlStaticCopyNode : malloc failed\n");
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->content != NULL) && (node->type != XML_ENTITY_REF_NODE)) {
#ifndef XML_USE_BUFFER_CONTENT
ret->content = xmlStrdup(node->content);
#else
ret->content = xmlBufferCreateSize(xmlBufferLength(node->content));
xmlBufferSetAllocationScheme(ret->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(ret->content,
xmlBufferContent(node->content),
xmlBufferLength(node->content));
#endif
}
if (parent != NULL)
xmlAddChild(parent, ret);
if (!recursive) return(ret);
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;
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->children != NULL)
ret->children = xmlStaticCopyNodeList(node->children, doc, ret);
UPDATE_LAST_CHILD_AND_PARENT(ret)
return(ret);
}
static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {
xmlNodePtr ret = NULL;
xmlNodePtr p = NULL,q;
while (node != NULL) {
if( node->type == XML_DTD_NODE )
q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );
else
q = xmlStaticCopyNode(node, doc, parent, 1);
if (ret == NULL) {
q->prev = NULL;
ret = p = q;
} else {
p->next = q;
q->prev = p;
p = q;
}
node = node->next;
}
return(ret);
}
/**
* xmlCopyNode:
* @node: the node
* @recursive: if 1 do a recursive copy.
*
* Do a copy of the node.
*
* Returns: a new xmlNodePtr, or NULL in case of error.
*/
xmlNodePtr
xmlCopyNode(xmlNodePtr node, int recursive) {
xmlNodePtr ret;
ret = xmlStaticCopyNode(node, NULL, NULL, recursive);
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(xmlNodePtr node) {
xmlNodePtr ret = xmlStaticCopyNodeList(node, NULL, NULL);
return(ret);
}
/**
* xmlCopyElement:
* @elem: the element
*
* Do a copy of the element definition.
*
* Returns: a new xmlElementPtr, or NULL in case of error.
xmlElementPtr
xmlCopyElement(xmlElementPtr elem) {
xmlElementPtr ret;
if (elem == NULL) return(NULL);
ret = xmlNewDocElement(elem->doc, elem->ns, elem->name, elem->content);
if (ret == NULL) return(NULL);
if (!recursive) return(ret);
if (elem->properties != NULL)
ret->properties = xmlCopyPropList(elem->properties);
if (elem->nsDef != NULL)
ret->nsDef = xmlCopyNamespaceList(elem->nsDef);
if (elem->children != NULL)
ret->children = xmlCopyElementList(elem->children);
return(ret);
}
*/
/**
* 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;
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);
return(ret);
}
/**
* xmlCopyDoc:
* @doc: the document
* @recursive: if 1 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);
if (doc->intSubset != NULL)
ret->intSubset = xmlCopyDtd(doc->intSubset);
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);
}
/************************************************************************
* *
* Content access functions *
* *
************************************************************************/
/**
* 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);
}
/**
* 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);
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);
}
/**
* xmlNodeSetLang:
* @cur: the node being changed
* @lang: the langage description
*
* Set the language of a node, i.e. the values of the xml:lang
* attribute.
*/
void
xmlNodeSetLang(xmlNodePtr cur, const xmlChar *lang) {
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_SGML_ENABLED
case XML_SGML_DOCUMENT_NODE:
#endif
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
}
xmlSetProp(cur, BAD_CAST "xml:lang", lang);
}
/**
* 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.
*/
xmlChar *
xmlNodeGetLang(xmlNodePtr cur) {
xmlChar *lang;
while (cur != NULL) {
lang = xmlGetProp(cur, BAD_CAST "xml:lang");
if (lang != NULL)
return(lang);
cur = cur->parent;
}
return(NULL);
}
/**
* 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) {
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_SGML_ENABLED
case XML_SGML_DOCUMENT_NODE:
#endif
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
}
switch (val) {
case 0:
xmlSetProp(cur, BAD_CAST "xml:space", BAD_CAST "default");
break;
case 1:
xmlSetProp(cur, BAD_CAST "xml:space",
BAD_CAST "preserve");
break;
}
}
/**
* 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 inheried, 0 if "default", 1 if "preserve"
*/
int
xmlNodeGetSpacePreserve(xmlNodePtr cur) {
xmlChar *space;
while (cur != NULL) {
space = xmlGetProp(cur, BAD_CAST "xml:space");
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);
}
/**
* 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_SGML_ENABLED
case XML_SGML_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);
}
/**
* 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, xmlChar* uri) {
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_SGML_ENABLED
case XML_SGML_DOCUMENT_NODE:
#endif
return;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
break;
}
xmlSetProp(cur, BAD_CAST "xml:base", uri);
}
/**
* xmlDocumentGetBase:
* @doc: the document
*
* Searches for the Document BASE URL. The code should work on both XML
* and HTML document.
* It returns the base as defined in RFC 2396 section
* 5.1.3. Base URI from the Retrieval URI
* However it does not return the computed base (5.1.1 and 5.1.2), use
* xmlNodeGetBase() for this
*
* Returns a pointer to the base URL, or NULL if not found
* It's up to the caller to free the memory.
*/
xmlChar *
xmlDocumentGetBase(xmlDocPtr doc) {
if (doc == NULL)
return(NULL);
if (doc->type == XML_HTML_DOCUMENT_NODE) {
if (doc->URL != NULL)
return(xmlStrdup(doc->URL));
return(NULL);
}
if (doc->URL != NULL)
return(xmlStrdup(doc->URL));
return(NULL);
}
/**
* 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.
*/
xmlChar *
xmlNodeGetBase(xmlDocPtr doc, xmlNodePtr cur) {
xmlChar *base;
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));
}
base = xmlGetProp(cur, BAD_CAST "xml:base");
if (base != NULL)
return(base);
cur = cur->parent;
}
if ((doc != NULL) && (doc->URL != NULL))
return(xmlStrdup(doc->URL));
return(NULL);
}
/**
* 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 substitued.
* Returns a new xmlChar * or NULL if no content is available.
* It's up to the caller to free the memory.
*/
xmlChar *
xmlNodeGetContent(xmlNodePtr cur) {
if (cur == NULL) return(NULL);
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE: {
xmlNodePtr tmp = cur;
xmlBufferPtr buffer;
xmlChar *ret;
buffer = xmlBufferCreate();
if (buffer == NULL)
return(NULL);
while (tmp != NULL) {
switch (tmp->type) {
case XML_ELEMENT_NODE:
case XML_TEXT_NODE:
if (tmp->content != NULL)
#ifndef XML_USE_BUFFER_CONTENT
xmlBufferCat(buffer, tmp->content);
#else
xmlBufferCat(buffer,
xmlBufferContent(tmp->content));
#endif
break;
case XML_ENTITY_REF_NODE: {
xmlEntityPtr ent;
ent = xmlGetDocEntity(cur->doc, tmp->name);
if (ent != NULL)
xmlBufferCat(buffer, ent->content);
}
default:
break;
}
/*
* Skip to next node
*/
if (tmp->children != NULL) {
if (tmp->children->type != XML_ENTITY_DECL) {
tmp = tmp->children;
continue;
}
}
if (tmp->next != NULL) {
tmp = tmp->next;
continue;
}
do {
tmp = tmp->parent;
if (tmp == NULL)
break;
if (tmp == (xmlNodePtr) cur) {
tmp = NULL;
break;
}
if (tmp->next != NULL) {
tmp = tmp->next;
break;
}
} while (tmp != NULL);
}
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)
#ifndef XML_USE_BUFFER_CONTENT
return(xmlStrdup(cur->content));
#else
return(xmlStrdup(xmlBufferContent(cur->content)));
#endif
return(NULL);
case XML_ENTITY_REF_NODE:
/*
* Locate the entity, and get it's content
* @@@
*/
return(NULL);
case XML_ENTITY_NODE:
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
#ifdef LIBXML_SGML_ENABLED
case XML_SGML_DOCUMENT_NODE:
#endif
return(NULL);
case XML_NAMESPACE_DECL:
return(xmlStrdup(((xmlNsPtr)cur)->href));
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)
#ifndef XML_USE_BUFFER_CONTENT
return(xmlStrdup(cur->content));
#else
return(xmlStrdup(xmlBufferContent(cur->content)));
#endif
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:
if (cur->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(cur->content);
#else
xmlBufferFree(cur->content);
#endif
cur->content = NULL;
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = xmlStringGetNodeList(cur->doc, content);
UPDATE_LAST_CHILD_AND_PARENT(cur)
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:
if (cur->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(cur->content);
#else
xmlBufferFree(cur->content);
#endif
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->last = cur->children = NULL;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrdup(content);
#else
cur->content = xmlBufferCreateSize(0);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, -1);
#endif
} 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_SGML_ENABLED
case XML_SGML_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;
}
}
/**
* 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:
if (cur->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(cur->content);
#else
xmlBufferFree(cur->content);
#endif
cur->content = NULL;
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = xmlStringLenGetNodeList(cur->doc, content, len);
UPDATE_LAST_CHILD_AND_PARENT(cur)
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 (cur->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(cur->content);
#else
xmlBufferFree(cur->content);
#endif
}
if (cur->children != NULL) xmlFreeNodeList(cur->children);
cur->children = cur->last = NULL;
if (content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrndup(content, len);
#else
cur->content = xmlBufferCreateSize(len);
xmlBufferSetAllocationScheme(cur->content,
xmlGetBufferAllocationScheme());
xmlBufferAdd(cur->content, content, len);
#endif
} 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_SGML_ENABLED
case XML_SGML_DOCUMENT_NODE:
#endif
break;
case XML_ELEMENT_DECL:
/* TODO !!! */
break;
case XML_ATTRIBUTE_DECL:
/* TODO !!! */
break;
case XML_ENTITY_DECL:
/* TODO !!! */
break;
}
}
/**
* 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 = NULL, newNode;
if (cur->children != NULL) {
last = cur->last;
} else {
if (cur->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
cur->children = xmlStringGetNodeList(cur->doc, cur->content);
#else
cur->children = xmlStringGetNodeList(cur->doc,
xmlBufferContent(cur->content));
#endif
UPDATE_LAST_CHILD_AND_PARENT(cur)
#ifndef XML_USE_BUFFER_CONTENT
xmlFree(cur->content);
#else
xmlBufferFree(cur->content);
#endif
cur->content = NULL;
last = cur->last;
}
}
newNode = xmlNewTextLen(content, len);
if (newNode != NULL) {
xmlAddChild(cur, newNode);
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) {
#ifndef XML_USE_BUFFER_CONTENT
cur->content = xmlStrncat(cur->content, content, len);
#else
xmlBufferAdd(cur->content, content, len);
#endif
}
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_SGML_ENABLED
case XML_SGML_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);
#ifndef XML_USE_BUFFER_CONTENT
xmlNodeAddContent(first, second->content);
#else
xmlNodeAddContent(first, xmlBufferContent(second->content));
#endif
xmlUnlinkNode(second);
xmlFreeNode(second);
return(first);
}
/**
* 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, xmlNodePtr node) {
xmlNsPtr cur;
xmlNsPtr *ret = NULL;
int nbns = 0;
int maxns = 10;
int i;
while (node != NULL) {
cur = node->nsDef;
while (cur != NULL) {
if (ret == NULL) {
ret = (xmlNsPtr *) xmlMalloc((maxns + 1) * sizeof(xmlNsPtr));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlGetNsList : out of memory!\n");
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlGetNsList : realloc failed!\n");
return(NULL);
}
}
ret[nbns++] = cur;
ret[nbns] = NULL;
}
cur = cur->next;
}
node = node->parent;
}
return(ret);
}
/**
* 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;
if (node == NULL) return(NULL);
if ((nameSpace != NULL) &&
(xmlStrEqual(nameSpace, (const xmlChar *)"xml"))) {
if (doc->oldNs == NULL) {
/*
* Allocate a new Namespace and fill the fields.
*/
doc->oldNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (doc->oldNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlSearchNsByHref : malloc failed\n");
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;
}
}
node = node->parent;
}
return(NULL);
}
/**
* 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;
if ((node == NULL) || (href == NULL)) return(NULL);
if (xmlStrEqual(href, XML_XML_NAMESPACE)) {
if (doc->oldNs == NULL) {
/*
* Allocate a new Namespace and fill the fields.
*/
doc->oldNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
if (doc->oldNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlSearchNsByHref : malloc failed\n");
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) {
cur = node->nsDef;
while (cur != NULL) {
if ((cur->href != NULL) && (href != NULL) &&
(xmlStrEqual(cur->href, href))) {
/*
* Check that the prefix is not shadowed between orig and node
*/
xmlNodePtr check = orig;
xmlNsPtr tst;
while (check != node) {
tst = check->nsDef;
while (tst != NULL) {
if ((tst->prefix == NULL) && (cur->prefix == NULL))
goto shadowed;
if ((tst->prefix != NULL) && (cur->prefix != NULL) &&
(xmlStrEqual(tst->prefix, cur->prefix)))
goto shadowed;
tst = tst->next;
}
check = check->parent;
}
return(cur);
}
shadowed:
cur = cur->next;
}
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 !
*/
sprintf((char *) prefix, "%.20s", ns->prefix);
def = xmlSearchNs(doc, tree, prefix);
while (def != NULL) {
if (counter > 1000) return(NULL);
sprintf((char *) 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);
}
/**
* 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 tu 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) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
return(-1);
}
newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
xmlFree(newNs);
return(-1);
}
newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
return(-1);
}
newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
xmlFree(oldNs);
return(-1);
}
}
for (i = 0;i < nbCache;i++) {
if (oldNs[i] == attr->ns) {
node->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) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
xmlFree(newNs);
return(-1);
}
newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *
sizeof(xmlNsPtr));
if (newNs == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlReconciliateNs : memory pbm\n");
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) {
/* 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;
}
}
return(ret);
}
/**
* 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)
return((xmlAttrPtr) attrDecl);
}
}
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.
*
* Returns the attribute value or NULL if not found.
* It's up to the caller to free the memory.
*/
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)
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.
*/
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(xmlGetProp(node, name));
while (prop != NULL) {
/*
* One need to have
* - same attribute names
* - and the attribute carrying that namespace
* or
* no namespace on the attribute and the element carrying it
*/
if ((xmlStrEqual(prop->name, name)) &&
(((prop->ns == NULL) && (node->ns != NULL) &&
(xmlStrEqual(node->ns->href, namespace))) ||
((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) {
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->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);
}
/**
* 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 = node->properties;
xmlDocPtr doc = NULL;
if ((node == NULL) || (name == NULL))
return(NULL);
doc = node->doc;
while (prop != NULL) {
if (xmlStrEqual(prop->name, name)) {
if (prop->children != NULL)
xmlFreeNodeList(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);
}
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
* or
* no namespace on the attribute and the element carrying it
*/
if ((xmlStrEqual(prop->name, name)) &&
(((prop->ns == NULL) && (node->ns != NULL) &&
(xmlStrEqual(node->ns->href, ns->href))) ||
((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);
}
/**
* 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) return(0);
if (node->content == NULL) return(1);
#ifndef XML_USE_BUFFER_CONTENT
cur = node->content;
#else
cur = xmlBufferContent(node->content);
#endif
while (*cur != 0) {
if (!IS_BLANK(*cur)) return(0);
cur++;
}
return(1);
}
/**
* xmlTextConcat:
* @node: the node
* @content: the content
* @len: @content lenght
*
* Concat the given string at the end of the existing node content
*/
void
xmlTextConcat(xmlNodePtr node, const xmlChar *content, int len) {
if (node == NULL) return;
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;
}
#ifndef XML_USE_BUFFER_CONTENT
node->content = xmlStrncat(node->content, content, len);
#else
xmlBufferAdd(node->content, content, len);
#endif
}
/************************************************************************
* *
* Output : to a FILE or in memory *
* *
************************************************************************/
#define BASE_BUFFER_SIZE 4000
/**
* xmlBufferCreate:
*
* routine to create an XML buffer.
* returns the new structure.
*/
xmlBufferPtr
xmlBufferCreate(void) {
xmlBufferPtr ret;
ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
if (ret == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCreate : out of memory!\n");
return(NULL);
}
ret->use = 0;
ret->size = BASE_BUFFER_SIZE;
ret->alloc = xmlBufferAllocScheme;
ret->content = (xmlChar *) xmlMalloc(ret->size * sizeof(xmlChar));
if (ret->content == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCreate : out of memory!\n");
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) {
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCreate : out of memory!\n");
return(NULL);
}
ret->use = 0;
ret->alloc = xmlBufferAllocScheme;
ret->size = (size ? size+2 : 0); /* +1 for ending null */
if (ret->size){
ret->content = (xmlChar *) xmlMalloc(ret->size * sizeof(xmlChar));
if (ret->content == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCreate : out of memory!\n");
xmlFree(ret);
return(NULL);
}
ret->content[0] = 0;
} else
ret->content = NULL;
return(ret);
}
/**
* xmlBufferSetAllocationScheme:
* @buf: the buffer to free
* @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;
}
buf->alloc = scheme;
}
/**
* xmlBufferFree:
* @buf: the buffer to free
*
* Frees an XML buffer.
*/
void
xmlBufferFree(xmlBufferPtr buf) {
if (buf == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferFree: buf == NULL\n");
#endif
return;
}
if (buf->content != NULL) {
#ifndef XML_USE_BUFFER_CONTENT
MEM_CLEANUP(buf->content, BASE_BUFFER_SIZE);
#else
MEM_CLEANUP(buf->content, buf->size);
#endif
xmlFree(buf->content);
}
MEM_CLEANUP(buf, sizeof(xmlBuffer));
xmlFree(buf);
}
/**
* xmlBufferEmpty:
* @buf: the buffer
*
* empty a buffer.
*/
void
xmlBufferEmpty(xmlBufferPtr buf) {
if (buf->content == NULL) return;
buf->use = 0;
MEM_CLEANUP(buf->content, 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;
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 (len + buf->use < buf->size) return(0);
size = buf->use + len + 100;
newbuf = (xmlChar *) xmlRealloc(buf->content, size);
if (newbuf == NULL) 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
*
* Returns the internal content
*/
const xmlChar*
xmlBufferContent(const xmlBufferPtr buf)
{
if(!buf)
return NULL;
return buf->content;
}
/**
* xmlBufferLength:
* @buf: the 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 accomodate 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;
/*take care of empty case*/
newSize = (buf->size ? buf->size*2 : size);
/* 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:
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 *) xmlMalloc(newSize * sizeof(xmlChar));
else
rebuf = (xmlChar *) xmlRealloc(buf->content,
newSize * sizeof(xmlChar));
if (rebuf == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd : out of memory!\n");
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 lenght of
* str is recomputed.
*/
void
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;
}
if (len < -1) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: len < 0\n");
#endif
return;
}
if (len == 0) return;
if (len < 0)
len = xmlStrlen(str);
if (len <= 0) return;
needSize = buf->use + len + 2;
if (needSize > buf->size){
if (!xmlBufferResize(buf, needSize)){
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd : out of memory!\n");
return;
}
}
memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));
buf->use += len;
buf->content[buf->use] = 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 lenght of @str is recomputed.
*/
void
xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
unsigned int needSize;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: str == NULL\n");
#endif
return;
}
if (len < -1) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: len < 0\n");
#endif
return;
}
if (len == 0) return;
if (len < 0)
len = xmlStrlen(str);
if (len <= 0) return;
needSize = buf->use + len + 2;
if (needSize > buf->size){
if (!xmlBufferResize(buf, needSize)){
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAddHead : out of memory!\n");
return;
}
}
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;
}
/**
* xmlBufferCat:
* @buf: the buffer to dump
* @str: the xmlChar string
*
* Append a zero terminated string to an XML buffer.
*/
void
xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {
if (str != NULL)
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.
*/
void
xmlBufferCCat(xmlBufferPtr buf, const char *str) {
const char *cur;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferAdd: str == NULL\n");
#endif
return;
}
for (cur = str;*cur != 0;cur++) {
if (buf->use + 10 >= buf->size) {
if (!xmlBufferResize(buf, buf->use+10)){
xmlGenericError(xmlGenericErrorContext,
"xmlBufferCCat : out of memory!\n");
return;
}
}
buf->content[buf->use++] = *cur;
}
buf->content[buf->use] = 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
#ifdef VMS
xmlBufferWriteXmlCHAR
#else
xmlBufferWriteCHAR
#endif
(xmlBufferPtr buf, const xmlChar *string) {
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) {
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) {
if (xmlStrchr(string, '"')) {
if (xmlStrchr(string, '\'')) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
"xmlBufferWriteQuotedString: string contains quote and double-quotes !\n");
#endif
}
xmlBufferCCat(buf, "'");
xmlBufferCat(buf, string);
xmlBufferCCat(buf, "'");
} else {
xmlBufferCCat(buf, "\"");
xmlBufferCat(buf, string);
xmlBufferCCat(buf, "\"");
}
}
/************************************************************************
* *
* Dumping XML tree content to a simple buffer *
* *
************************************************************************/
void
xmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, int level,
int format);
static void
xmlNodeListDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, int level,
int format);
void
htmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur);
/**
* xmlNsDump:
* @buf: the XML buffer output
* @cur: a namespace
*
* Dump a local Namespace definition.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsDump(xmlBufferPtr buf, xmlNsPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNsDump : Ns == NULL\n");
#endif
return;
}
if (cur->type == XML_LOCAL_NAMESPACE) {
/* Within the context of an element attributes */
if (cur->prefix != NULL) {
xmlBufferWriteChar(buf, " xmlns:");
xmlBufferWriteCHAR(buf, cur->prefix);
} else
xmlBufferWriteChar(buf, " xmlns");
xmlBufferWriteChar(buf, "=");
xmlBufferWriteQuotedString(buf, cur->href);
}
}
/**
* xmlNsListDump:
* @buf: the XML buffer output
* @cur: the first namespace
*
* Dump a list of local Namespace definitions.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsListDump(xmlBufferPtr buf, xmlNsPtr cur) {
while (cur != NULL) {
xmlNsDump(buf, cur);
cur = cur->next;
}
}
/**
* xmlDtdDump:
* @buf: the XML buffer output
* @doc: the document
*
* Dump the XML document DTD, if any.
*/
static void
xmlDtdDump(xmlBufferPtr buf, xmlDtdPtr dtd) {
if (dtd == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlDtdDump : no internal subset\n");
#endif
return;
}
xmlBufferWriteChar(buf, "<!DOCTYPE ");
xmlBufferWriteCHAR(buf, dtd->name);
if (dtd->ExternalID != NULL) {
xmlBufferWriteChar(buf, " PUBLIC ");
xmlBufferWriteQuotedString(buf, dtd->ExternalID);
xmlBufferWriteChar(buf, " ");
xmlBufferWriteQuotedString(buf, dtd->SystemID);
} else if (dtd->SystemID != NULL) {
xmlBufferWriteChar(buf, " SYSTEM ");
xmlBufferWriteQuotedString(buf, dtd->SystemID);
}
if ((dtd->entities == NULL) && (dtd->elements == NULL) &&
(dtd->attributes == NULL) && (dtd->notations == NULL)) {
xmlBufferWriteChar(buf, ">");
return;
}
xmlBufferWriteChar(buf, " [\n");
xmlNodeListDump(buf, dtd->doc, dtd->children, -1, 0);
#if 0
if (dtd->entities != NULL)
xmlDumpEntitiesTable(buf, (xmlEntitiesTablePtr) dtd->entities);
if (dtd->notations != NULL)
xmlDumpNotationTable(buf, (xmlNotationTablePtr) dtd->notations);
if (dtd->elements != NULL)
xmlDumpElementTable(buf, (xmlElementTablePtr) dtd->elements);
if (dtd->attributes != NULL)
xmlDumpAttributeTable(buf, (xmlAttributeTablePtr) dtd->attributes);
#endif
xmlBufferWriteChar(buf, "]>");
}
/**
* xmlAttrDump:
* @buf: the XML buffer output
* @doc: the document
* @cur: the attribute pointer
*
* Dump an XML attribute
*/
static void
xmlAttrDump(xmlBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur) {
xmlChar *value;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAttrDump : property == NULL\n");
#endif
return;
}
xmlBufferWriteChar(buf, " ");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlBufferWriteCHAR(buf, cur->ns->prefix);
xmlBufferWriteChar(buf, ":");
}
xmlBufferWriteCHAR(buf, cur->name);
value = xmlNodeListGetString(doc, cur->children, 0);
if (value != NULL) {
xmlBufferWriteChar(buf, "=");
xmlBufferWriteQuotedString(buf, value);
xmlFree(value);
} else {
xmlBufferWriteChar(buf, "=\"\"");
}
}
/**
* xmlAttrListDump:
* @buf: the XML buffer output
* @doc: the document
* @cur: the first attribute pointer
*
* Dump a list of XML attributes
*/
static void
xmlAttrListDump(xmlBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAttrListDump : property == NULL\n");
#endif
return;
}
while (cur != NULL) {
xmlAttrDump(buf, doc, cur);
cur = cur->next;
}
}
/**
* xmlNodeListDump:
* @buf: the XML buffer output
* @doc: the document
* @cur: the first node
* @level: the imbrication level for indenting
* @format: is formatting allowed
*
* Dump an XML node list, recursive behaviour,children are printed too.
*/
static void
xmlNodeListDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, int level,
int format) {
int i;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeListDump : node == NULL\n");
#endif
return;
}
while (cur != NULL) {
if ((format) && (xmlIndentTreeOutput) &&
(cur->type == XML_ELEMENT_NODE))
for (i = 0;i < level;i++)
xmlBufferWriteChar(buf, " ");
xmlNodeDump(buf, doc, cur, level, format);
if (format) {
xmlBufferWriteChar(buf, "\n");
}
cur = cur->next;
}
}
/**
* xmlNodeDump:
* @buf: the XML buffer output
* @doc: the document
* @cur: the current node
* @level: the imbrication level for indenting
* @format: is formatting allowed
*
* Dump an XML node, recursive behaviour,children are printed too.
*/
void
xmlNodeDump(xmlBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur, int level,
int format) {
int i;
xmlNodePtr tmp;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeDump : node == NULL\n");
#endif
return;
}
if (cur->type == XML_XINCLUDE_START)
return;
if (cur->type == XML_XINCLUDE_END)
return;
if (cur->type == XML_DTD_NODE) {
xmlDtdDump(buf, (xmlDtdPtr) cur);
return;
}
if (cur->type == XML_ELEMENT_DECL) {
xmlDumpElementDecl(buf, (xmlElementPtr) cur);
return;
}
if (cur->type == XML_ATTRIBUTE_DECL) {
xmlDumpAttributeDecl(buf, (xmlAttributePtr) cur);
return;
}
if (cur->type == XML_ENTITY_DECL) {
xmlDumpEntityDecl(buf, (xmlEntityPtr) cur);
return;
}
if (cur->type == XML_TEXT_NODE) {
if (cur->content != NULL) {
if ((cur->name == xmlStringText) ||
(cur->name != xmlStringTextNoenc)) {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
buffer = xmlEncodeEntitiesReentrant(doc, cur->content);
#else
buffer = xmlEncodeEntitiesReentrant(doc,
xmlBufferContent(cur->content));
#endif
if (buffer != NULL) {
xmlBufferWriteCHAR(buf, buffer);
xmlFree(buffer);
}
} else {
/*
* Disable escaping, needed for XSLT
*/
#ifndef XML_USE_BUFFER_CONTENT
xmlBufferWriteCHAR(buf, cur->content);
#else
xmlBufferWriteCHAR(buf, xmlBufferContent(cur->content));
#endif
}
}
return;
}
if (cur->type == XML_PI_NODE) {
if (cur->content != NULL) {
xmlBufferWriteChar(buf, "<?");
xmlBufferWriteCHAR(buf, cur->name);
if (cur->content != NULL) {
xmlBufferWriteChar(buf, " ");
#ifndef XML_USE_BUFFER_CONTENT
xmlBufferWriteCHAR(buf, cur->content);
#else
xmlBufferWriteCHAR(buf, xmlBufferContent(cur->content));
#endif
}
xmlBufferWriteChar(buf, "?>");
} else {
xmlBufferWriteChar(buf, "<?");
xmlBufferWriteCHAR(buf, cur->name);
xmlBufferWriteChar(buf, "?>");
}
return;
}
if (cur->type == XML_COMMENT_NODE) {
if (cur->content != NULL) {
xmlBufferWriteChar(buf, "<!--");
#ifndef XML_USE_BUFFER_CONTENT
xmlBufferWriteCHAR(buf, cur->content);
#else
xmlBufferWriteCHAR(buf, xmlBufferContent(cur->content));
#endif
xmlBufferWriteChar(buf, "-->");
}
return;
}
if (cur->type == XML_ENTITY_REF_NODE) {
xmlBufferWriteChar(buf, "&");
xmlBufferWriteCHAR(buf, cur->name);
xmlBufferWriteChar(buf, ";");
return;
}
if (cur->type == XML_CDATA_SECTION_NODE) {
xmlBufferWriteChar(buf, "<![CDATA[");
if (cur->content != NULL)
#ifndef XML_USE_BUFFER_CONTENT
xmlBufferWriteCHAR(buf, cur->content);
#else
xmlBufferWriteCHAR(buf, xmlBufferContent(cur->content));
#endif
xmlBufferWriteChar(buf, "]]>");
return;
}
if (format == 1) {
tmp = cur->children;
while (tmp != NULL) {
if ((tmp->type == XML_TEXT_NODE) ||
(tmp->type == XML_ENTITY_REF_NODE)) {
format = 0;
break;
}
tmp = tmp->next;
}
}
xmlBufferWriteChar(buf, "<");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlBufferWriteCHAR(buf, cur->ns->prefix);
xmlBufferWriteChar(buf, ":");
}
xmlBufferWriteCHAR(buf, cur->name);
if (cur->nsDef)
xmlNsListDump(buf, cur->nsDef);
if (cur->properties != NULL)
xmlAttrListDump(buf, doc, cur->properties);
if ((cur->content == NULL) && (cur->children == NULL) &&
(!xmlSaveNoEmptyTags)) {
xmlBufferWriteChar(buf, "/>");
return;
}
xmlBufferWriteChar(buf, ">");
if (cur->content != NULL) {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
buffer = xmlEncodeEntitiesReentrant(doc, cur->content);
#else
buffer = xmlEncodeEntitiesReentrant(doc,
xmlBufferContent(cur->content));
#endif
if (buffer != NULL) {
xmlBufferWriteCHAR(buf, buffer);
xmlFree(buffer);
}
}
if (cur->children != NULL) {
if (format) xmlBufferWriteChar(buf, "\n");
xmlNodeListDump(buf, doc, cur->children,
(level >= 0?level+1:-1), format);
if ((xmlIndentTreeOutput) && (format))
for (i = 0;i < level;i++)
xmlBufferWriteChar(buf, " ");
}
xmlBufferWriteChar(buf, "</");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlBufferWriteCHAR(buf, cur->ns->prefix);
xmlBufferWriteChar(buf, ":");
}
xmlBufferWriteCHAR(buf, cur->name);
xmlBufferWriteChar(buf, ">");
}
/**
* xmlElemDump:
* @f: the FILE * for the output
* @doc: the document
* @cur: the current node
*
* Dump an XML/HTML node, recursive behaviour,children are printed too.
*/
void
xmlElemDump(FILE *f, xmlDocPtr doc, xmlNodePtr cur) {
xmlBufferPtr buf;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlElemDump : cur == NULL\n");
#endif
return;
}
if (doc == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlElemDump : doc == NULL\n");
#endif
}
buf = xmlBufferCreate();
if (buf == NULL) return;
if ((doc != NULL) &&
(doc->type == XML_HTML_DOCUMENT_NODE)) {
#ifdef LIBXML_HTML_ENABLED
htmlNodeDump(buf, doc, cur);
#else
xmlGenericError(xmlGenericErrorContext,
"HTML support not compiled in\n");
#endif /* LIBXML_HTML_ENABLED */
} else
xmlNodeDump(buf, doc, cur, 0, 1);
xmlBufferDump(f, buf);
xmlBufferFree(buf);
}
/************************************************************************
* *
* Dumping XML tree content to an I/O output buffer *
* *
************************************************************************/
void
xmlNodeDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur,
int level, int format, const char *encoding);
static void
xmlNodeListDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur,
int level, int format, const char *encoding);
/**
* xmlNsDumpOutput:
* @buf: the XML buffer output
* @cur: a namespace
*
* Dump a local Namespace definition.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsDumpOutput(xmlOutputBufferPtr buf, xmlNsPtr cur) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNsDump : Ns == NULL\n");
#endif
return;
}
if ((cur->type == XML_LOCAL_NAMESPACE) && (cur->href != NULL)) {
/* Within the context of an element attributes */
if (cur->prefix != NULL) {
xmlOutputBufferWriteString(buf, " xmlns:");
xmlOutputBufferWriteString(buf, (const char *)cur->prefix);
} else
xmlOutputBufferWriteString(buf, " xmlns");
xmlOutputBufferWriteString(buf, "=");
xmlBufferWriteQuotedString(buf->buffer, cur->href);
}
}
/**
* xmlNsListDumpOutput:
* @buf: the XML buffer output
* @cur: the first namespace
*
* Dump a list of local Namespace definitions.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsListDumpOutput(xmlOutputBufferPtr buf, xmlNsPtr cur) {
while (cur != NULL) {
xmlNsDumpOutput(buf, cur);
cur = cur->next;
}
}
/**
* xmlDtdDumpOutput:
* @buf: the XML buffer output
* @doc: the document
* @encoding: an optional encoding string
*
* Dump the XML document DTD, if any.
*/
static void
xmlDtdDumpOutput(xmlOutputBufferPtr buf, xmlDtdPtr dtd, const char *encoding) {
if (dtd == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlDtdDump : no internal subset\n");
#endif
return;
}
xmlOutputBufferWriteString(buf, "<!DOCTYPE ");
xmlOutputBufferWriteString(buf, (const char *)dtd->name);
if (dtd->ExternalID != NULL) {
xmlOutputBufferWriteString(buf, " PUBLIC ");
xmlBufferWriteQuotedString(buf->buffer, dtd->ExternalID);
xmlOutputBufferWriteString(buf, " ");
xmlBufferWriteQuotedString(buf->buffer, dtd->SystemID);
} else if (dtd->SystemID != NULL) {
xmlOutputBufferWriteString(buf, " SYSTEM ");
xmlBufferWriteQuotedString(buf->buffer, dtd->SystemID);
}
if ((dtd->entities == NULL) && (dtd->elements == NULL) &&
(dtd->attributes == NULL) && (dtd->notations == NULL)) {
xmlOutputBufferWriteString(buf, ">");
return;
}
xmlOutputBufferWriteString(buf, " [\n");
xmlNodeListDumpOutput(buf, dtd->doc, dtd->children, -1, 0, encoding);
xmlOutputBufferWriteString(buf, "]>");
}
/**
* xmlAttrDumpOutput:
* @buf: the XML buffer output
* @doc: the document
* @cur: the attribute pointer
* @encoding: an optional encoding string
*
* Dump an XML attribute
*/
static void
xmlAttrDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlAttrPtr cur,
const char *encoding) {
xmlChar *value;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAttrDump : property == NULL\n");
#endif
return;
}
xmlOutputBufferWriteString(buf, " ");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
xmlOutputBufferWriteString(buf, ":");
}
xmlOutputBufferWriteString(buf, (const char *)cur->name);
value = xmlNodeListGetString(doc, cur->children, 0);
if (value) {
xmlOutputBufferWriteString(buf, "=");
xmlBufferWriteQuotedString(buf->buffer, value);
xmlFree(value);
} else {
xmlOutputBufferWriteString(buf, "=\"\"");
}
}
/**
* xmlAttrListDumpOutput:
* @buf: the XML buffer output
* @doc: the document
* @cur: the first attribute pointer
* @encoding: an optional encoding string
*
* Dump a list of XML attributes
*/
static void
xmlAttrListDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
xmlAttrPtr cur, const char *encoding) {
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlAttrListDump : property == NULL\n");
#endif
return;
}
while (cur != NULL) {
xmlAttrDumpOutput(buf, doc, cur, encoding);
cur = cur->next;
}
}
/**
* xmlNodeListDumpOutput:
* @buf: the XML buffer output
* @doc: the document
* @cur: the first node
* @level: the imbrication level for indenting
* @format: is formatting allowed
* @encoding: an optional encoding string
*
* Dump an XML node list, recursive behaviour,children are printed too.
*/
static void
xmlNodeListDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc,
xmlNodePtr cur, int level, int format, const char *encoding) {
int i;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeListDump : node == NULL\n");
#endif
return;
}
while (cur != NULL) {
if ((format) && (xmlIndentTreeOutput) &&
(cur->type == XML_ELEMENT_NODE))
for (i = 0;i < level;i++)
xmlOutputBufferWriteString(buf, " ");
xmlNodeDumpOutput(buf, doc, cur, level, format, encoding);
if (format) {
xmlOutputBufferWriteString(buf, "\n");
}
cur = cur->next;
}
}
/**
* xmlNodeDumpOutput:
* @buf: the XML buffer output
* @doc: the document
* @cur: the current node
* @level: the imbrication level for indenting
* @format: is formatting allowed
* @encoding: an optional encoding string
*
* Dump an XML node, recursive behaviour,children are printed too.
*/
void
xmlNodeDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr doc, xmlNodePtr cur,
int level, int format, const char *encoding) {
int i;
xmlNodePtr tmp;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlNodeDump : node == NULL\n");
#endif
return;
}
if (cur->type == XML_XINCLUDE_START)
return;
if (cur->type == XML_XINCLUDE_END)
return;
if (cur->type == XML_DTD_NODE) {
xmlDtdDumpOutput(buf, (xmlDtdPtr) cur, encoding);
return;
}
if (cur->type == XML_ELEMENT_DECL) {
xmlDumpElementDecl(buf->buffer, (xmlElementPtr) cur);
return;
}
if (cur->type == XML_ATTRIBUTE_DECL) {
xmlDumpAttributeDecl(buf->buffer, (xmlAttributePtr) cur);
return;
}
if (cur->type == XML_ENTITY_DECL) {
xmlDumpEntityDecl(buf->buffer, (xmlEntityPtr) cur);
return;
}
if (cur->type == XML_TEXT_NODE) {
if (cur->content != NULL) {
if ((cur->name == xmlStringText) ||
(cur->name != xmlStringTextNoenc)) {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
if (encoding == NULL)
buffer = xmlEncodeEntitiesReentrant(doc, cur->content);
else
buffer = xmlEncodeSpecialChars(doc, cur->content);
#else
if (encoding == NULL)
buffer = xmlEncodeEntitiesReentrant(doc,
xmlBufferContent(cur->content));
else
buffer = xmlEncodeSpecialChars(doc,
xmlBufferContent(cur->content));
#endif
if (buffer != NULL) {
xmlOutputBufferWriteString(buf, (const char *)buffer);
xmlFree(buffer);
}
} else {
/*
* Disable escaping, needed for XSLT
*/
#ifndef XML_USE_BUFFER_CONTENT
xmlOutputBufferWriteString(buf, (const char *) cur->content);
#else
xmlOutputBufferWriteString(buf, xmlBufferContent(cur->content));
#endif
}
}
return;
}
if (cur->type == XML_PI_NODE) {
if (cur->content != NULL) {
xmlOutputBufferWriteString(buf, "<?");
xmlOutputBufferWriteString(buf, (const char *)cur->name);
if (cur->content != NULL) {
xmlOutputBufferWriteString(buf, " ");
#ifndef XML_USE_BUFFER_CONTENT
xmlOutputBufferWriteString(buf, (const char *)cur->content);
#else
xmlOutputBufferWriteString(buf, (const char *)xmlBufferContent(cur->content));
#endif
}
xmlOutputBufferWriteString(buf, "?>");
} else {
xmlOutputBufferWriteString(buf, "<?");
xmlOutputBufferWriteString(buf, (const char *)cur->name);
xmlOutputBufferWriteString(buf, "?>");
}
return;
}
if (cur->type == XML_COMMENT_NODE) {
if (cur->content != NULL) {
xmlOutputBufferWriteString(buf, "<!--");
#ifndef XML_USE_BUFFER_CONTENT
xmlOutputBufferWriteString(buf, (const char *)cur->content);
#else
xmlOutputBufferWriteString(buf, (const char *)xmlBufferContent(cur->content));
#endif
xmlOutputBufferWriteString(buf, "-->");
}
return;
}
if (cur->type == XML_ENTITY_REF_NODE) {
xmlOutputBufferWriteString(buf, "&");
xmlOutputBufferWriteString(buf, (const char *)cur->name);
xmlOutputBufferWriteString(buf, ";");
return;
}
if (cur->type == XML_CDATA_SECTION_NODE) {
xmlOutputBufferWriteString(buf, "<![CDATA[");
if (cur->content != NULL)
#ifndef XML_USE_BUFFER_CONTENT
xmlOutputBufferWriteString(buf, (const char *)cur->content);
#else
xmlOutputBufferWriteString(buf, (const char *)xmlBufferContent(cur->content));
#endif
xmlOutputBufferWriteString(buf, "]]>");
return;
}
if (format == 1) {
tmp = cur->children;
while (tmp != NULL) {
if ((tmp->type == XML_TEXT_NODE) ||
(tmp->type == XML_ENTITY_REF_NODE)) {
format = 0;
break;
}
tmp = tmp->next;
}
}
xmlOutputBufferWriteString(buf, "<");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
xmlOutputBufferWriteString(buf, ":");
}
xmlOutputBufferWriteString(buf, (const char *)cur->name);
if (cur->nsDef)
xmlNsListDumpOutput(buf, cur->nsDef);
if (cur->properties != NULL)
xmlAttrListDumpOutput(buf, doc, cur->properties, encoding);
if ((cur->content == NULL) && (cur->children == NULL) &&
(!xmlSaveNoEmptyTags)) {
xmlOutputBufferWriteString(buf, "/>");
return;
}
xmlOutputBufferWriteString(buf, ">");
if (cur->content != NULL) {
xmlChar *buffer;
#ifndef XML_USE_BUFFER_CONTENT
if (encoding == NULL)
buffer = xmlEncodeEntitiesReentrant(doc, cur->content);
else
buffer = xmlEncodeSpecialChars(doc, cur->content);
#else
if (encoding == NULL)
buffer = xmlEncodeEntitiesReentrant(doc,
xmlBufferContent(cur->content));
else
buffer = xmlEncodeSpecialChars(doc,
xmlBufferContent(cur->content));
#endif
if (buffer != NULL) {
xmlOutputBufferWriteString(buf, (const char *)buffer);
xmlFree(buffer);
}
}
if (cur->children != NULL) {
if (format) xmlOutputBufferWriteString(buf, "\n");
xmlNodeListDumpOutput(buf, doc, cur->children,
(level >= 0?level+1:-1), format, encoding);
if ((xmlIndentTreeOutput) && (format))
for (i = 0;i < level;i++)
xmlOutputBufferWriteString(buf, " ");
}
xmlOutputBufferWriteString(buf, "</");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlOutputBufferWriteString(buf, (const char *)cur->ns->prefix);
xmlOutputBufferWriteString(buf, ":");
}
xmlOutputBufferWriteString(buf, (const char *)cur->name);
xmlOutputBufferWriteString(buf, ">");
}
/**
* xmlDocContentDumpOutput:
* @buf: the XML buffer output
* @cur: the document
* @encoding: an optional encoding string
* @format: should formatting spaces been added
*
* Dump an XML document.
*/
static void
xmlDocContentDumpOutput(xmlOutputBufferPtr buf, xmlDocPtr cur,
const char *encoding, int format) {
xmlOutputBufferWriteString(buf, "<?xml version=");
if (cur->version != NULL)
xmlBufferWriteQuotedString(buf->buffer, cur->version);
else
xmlOutputBufferWriteString(buf, "\"1.0\"");
if (encoding == NULL) {
if (cur->encoding != NULL)
encoding = (const char *) cur->encoding;
else if (cur->charset != XML_CHAR_ENCODING_UTF8)
encoding = xmlGetCharEncodingName((xmlCharEncoding) cur->charset);
}
if (encoding != NULL) {
xmlOutputBufferWriteString(buf, " encoding=");
xmlBufferWriteQuotedString(buf->buffer, (xmlChar *) encoding);
}
switch (cur->standalone) {
case 0:
xmlOutputBufferWriteString(buf, " standalone=\"no\"");
break;
case 1:
xmlOutputBufferWriteString(buf, " standalone=\"yes\"");
break;
}
xmlOutputBufferWriteString(buf, "?>\n");
if (cur->children != NULL) {
xmlNodePtr child = cur->children;
while (child != NULL) {
xmlNodeDumpOutput(buf, cur, child, 0, format, encoding);
xmlOutputBufferWriteString(buf, "\n");
child = child->next;
}
}
}
/************************************************************************
* *
* Saving functions front-ends *
* *
************************************************************************/
/**
* xmlDocDumpMemoryEnc:
* @out_doc: Document to generate XML text from
* @doc_txt_ptr: Memory pointer for allocated XML text
* @doc_txt_len: Length of the generated XML text
* @txt_encoding: Character encoding to use when generating XML text
* @format: should formatting spaces been added
*
* Dump the current DOM tree into memory using the character encoding specified
* by the caller. Note it is up to the caller of this function to free the
* allocated memory.
*/
void
xmlDocDumpFormatMemoryEnc(xmlDocPtr out_doc, xmlChar **doc_txt_ptr,
int * doc_txt_len, const char * txt_encoding, int format) {
int dummy = 0;
xmlCharEncoding doc_charset;
xmlOutputBufferPtr out_buff = NULL;
xmlCharEncodingHandlerPtr conv_hdlr = NULL;
if (doc_txt_len == NULL) {
doc_txt_len = &dummy; /* Continue, caller just won't get length */
}
if (doc_txt_ptr == NULL) {
*doc_txt_len = 0;
xmlGenericError(xmlGenericErrorContext,
"xmlDocDumpFormatMemoryEnc: Null return buffer pointer.");
return;
}
*doc_txt_ptr = NULL;
*doc_txt_len = 0;
if (out_doc == NULL) {
/* No document, no output */
xmlGenericError(xmlGenericErrorContext,
"xmlDocDumpFormatMemoryEnc: Null DOM tree document pointer.\n");
return;
}
/*
* Validate the encoding value, if provided.
* This logic is copied from xmlSaveFileEnc.
*/
if (txt_encoding == NULL)
txt_encoding = (const char *) out_doc->encoding;
if (txt_encoding != NULL) {
doc_charset = xmlParseCharEncoding(txt_encoding);
if (out_doc->charset != XML_CHAR_ENCODING_UTF8) {
xmlGenericError(xmlGenericErrorContext,
"xmlDocDumpFormatMemoryEnc: Source document not in UTF8\n");
return;
} else if (doc_charset != XML_CHAR_ENCODING_UTF8) {
conv_hdlr = xmlFindCharEncodingHandler(txt_encoding);
if ( conv_hdlr == NULL ) {
xmlGenericError(xmlGenericErrorContext,
"%s: %s %s '%s'\n",
"xmlDocDumpFormatMemoryEnc",
"Failed to identify encoding handler for",
"character set",
txt_encoding);
return;
}
}
}
if ((out_buff = xmlAllocOutputBuffer(conv_hdlr)) == NULL ) {
xmlGenericError(xmlGenericErrorContext,
"xmlDocDumpFormatMemoryEnc: Failed to allocate output buffer.\n");
return;
}
xmlDocContentDumpOutput(out_buff, out_doc, txt_encoding, 1);
xmlOutputBufferFlush(out_buff);
if (out_buff->conv != NULL) {
*doc_txt_len = out_buff->conv->use;
*doc_txt_ptr = xmlStrndup(out_buff->conv->content, *doc_txt_len);
} else {
*doc_txt_len = out_buff->buffer->use;
*doc_txt_ptr = xmlStrndup(out_buff->buffer->content, *doc_txt_len);
}
(void)xmlOutputBufferClose(out_buff);
if ((*doc_txt_ptr == NULL) && (*doc_txt_len > 0)) {
*doc_txt_len = 0;
xmlGenericError(xmlGenericErrorContext,
"xmlDocDumpFormatMemoryEnc: %s\n",
"Failed to allocate memory for document text representation.");
}
return;
}
/**
* xmlDocDumpMemory:
* @cur: the document
* @mem: OUT: the memory pointer
* @size: OUT: the memory lenght
*
* Dump an XML document in memory and return the xmlChar * and it's size.
* It's up to the caller to free the memory.
*/
void
xmlDocDumpMemory(xmlDocPtr cur, xmlChar**mem, int *size) {
xmlDocDumpFormatMemoryEnc(cur, mem, size, NULL, 0);
}
/**
* xmlDocDumpFormatMemory:
* @cur: the document
* @mem: OUT: the memory pointer
* @size: OUT: the memory lenght
* @format: should formatting spaces been added
*
*
* Dump an XML document in memory and return the xmlChar * and it's size.
* It's up to the caller to free the memory.
*/
void
xmlDocDumpFormatMemory(xmlDocPtr cur, xmlChar**mem, int *size, int format) {
xmlDocDumpFormatMemoryEnc(cur, mem, size, NULL, format);
}
/**
* xmlDocDumpMemoryEnc:
* @out_doc: Document to generate XML text from
* @doc_txt_ptr: Memory pointer for allocated XML text
* @doc_txt_len: Length of the generated XML text
* @txt_encoding: Character encoding to use when generating XML text
*
* Dump the current DOM tree into memory using the character encoding specified
* by the caller. Note it is up to the caller of this function to free the
* allocated memory.
*/
void
xmlDocDumpMemoryEnc(xmlDocPtr out_doc, xmlChar **doc_txt_ptr,
int * doc_txt_len, const char * txt_encoding) {
xmlDocDumpFormatMemoryEnc(out_doc, doc_txt_ptr, doc_txt_len,
txt_encoding, 1);
}
/**
* 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;
}
/**
* xmlDocDump:
* @f: the FILE*
* @cur: the document
*
* Dump an XML document to an open FILE.
*
* returns: the number of byte written or -1 in case of failure.
*/
int
xmlDocDump(FILE *f, xmlDocPtr cur) {
xmlOutputBufferPtr buf;
const char * encoding;
xmlCharEncodingHandlerPtr handler = NULL;
int ret;
if (cur == NULL) {
#ifdef DEBUG_TREE
xmlGenericError(xmlGenericErrorContext,
"xmlDocDump : document == NULL\n");
#endif
return(-1);
}
encoding = (const char *) cur->encoding;
if (encoding != NULL) {
xmlCharEncoding enc;
enc = xmlParseCharEncoding(encoding);
if (cur->charset != XML_CHAR_ENCODING_UTF8) {
xmlGenericError(xmlGenericErrorContext,
"xmlDocDump: document not in UTF8\n");
return(-1);
}
if (enc != XML_CHAR_ENCODING_UTF8) {
handler = xmlFindCharEncodingHandler(encoding);
if (handler == NULL) {
xmlFree((char *) cur->encoding);
cur->encoding = NULL;
}
}
}
buf = xmlOutputBufferCreateFile(f, handler);
if (buf == NULL) return(-1);
xmlDocContentDumpOutput(buf, cur, NULL, 1);
ret = xmlOutputBufferClose(buf);
return(ret);
}
/**
* xmlSaveFileTo:
* @buf: an output I/O buffer
* @cur: the document
* @encoding: the encoding if any assuming the i/O layer handles the trancoding
*
* Dump an XML document to an I/O buffer.
*
* returns: the number of byte written or -1 in case of failure.
*/
int
xmlSaveFileTo(xmlOutputBuffer *buf, xmlDocPtr cur, const char *encoding) {
int ret;
if (buf == NULL) return(0);
xmlDocContentDumpOutput(buf, cur, encoding, 1);
ret = xmlOutputBufferClose(buf);
return(ret);
}
/**
* xmlSaveFileEnc:
* @filename: the filename (or URL)
* @cur: the document
* @encoding: the name of an encoding (or NULL)
*
* Dump an XML document, converting it to the given encoding
*
* returns: the number of byte written or -1 in case of failure.
*/
int
xmlSaveFileEnc(const char *filename, xmlDocPtr cur, const char *encoding) {
xmlOutputBufferPtr buf;
xmlCharEncodingHandlerPtr handler = NULL;
int ret;
if (encoding != NULL) {
xmlCharEncoding enc;
enc = xmlParseCharEncoding(encoding);
if (cur->charset != XML_CHAR_ENCODING_UTF8) {
xmlGenericError(xmlGenericErrorContext,
"xmlSaveFileEnc: document not in UTF8\n");
return(-1);
}
if (enc != XML_CHAR_ENCODING_UTF8) {
handler = xmlFindCharEncodingHandler(encoding);
if (handler == NULL) {
return(-1);
}
}
}
/*
* save the content to a temp buffer.
*/
buf = xmlOutputBufferCreateFilename(filename, handler, 0);
if (buf == NULL) return(-1);
xmlDocContentDumpOutput(buf, cur, encoding, 1);
ret = xmlOutputBufferClose(buf);
return(ret);
}
/**
* xmlSaveFile:
* @filename: the filename (or URL)
* @cur: the document
*
* Dump an XML document to a file. Will use compression if
* compiled in and enabled. If @filename is "-" the stdout file is
* used.
* returns: the number of byte written or -1 in case of failure.
*/
int
xmlSaveFile(const char *filename, xmlDocPtr cur) {
xmlOutputBufferPtr buf;
const char *encoding;
xmlCharEncodingHandlerPtr handler = NULL;
int ret;
if (cur == NULL)
return(-1);
encoding = (const char *) cur->encoding;
/*
* save the content to a temp buffer.
*/
#ifdef HAVE_ZLIB_H
if (cur->compression < 0) cur->compression = xmlCompressMode;
#endif
if (encoding != NULL) {
xmlCharEncoding enc;
enc = xmlParseCharEncoding(encoding);
if (cur->charset != XML_CHAR_ENCODING_UTF8) {
xmlGenericError(xmlGenericErrorContext,
"xmlSaveFile: document not in UTF8\n");
return(-1);
}
if (enc != XML_CHAR_ENCODING_UTF8) {
handler = xmlFindCharEncodingHandler(encoding);
if (handler == NULL) {
xmlFree((char *) cur->encoding);
cur->encoding = NULL;
}
}
}
buf = xmlOutputBufferCreateFilename(filename, handler, cur->compression);
if (buf == NULL) return(-1);
xmlDocContentDumpOutput(buf, cur, NULL, 1);
ret = xmlOutputBufferClose(buf);
return(ret);
}