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libxml2/tree.c

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/*
* tree.c : implemetation of access function for an XML tree.
*
* See Copyright for the status of this software.
*
* $Id$
*
* TODO Cleanup the Dump mechanism.
*/
#include "config.h"
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h> /* for memset() only ! */
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#include "tree.h"
#include "entities.h"
static CHAR xmlStringText[] = { 't', 'e', 'x', 't', 0 };
int oldXMLWDcompatibility = 0;
int xmlIndentTreeOutput = 1;
static int xmlCompressMode = 0;
/************************************************************************
* *
* Allocation and deallocation of basic structures *
* *
************************************************************************/
/**
* xmlUpgradeOldNs:
* @doc: a document pointer
*
* Upgrade old style Namespaces (PI) and move them to the root of the document.
*/
void
xmlUpgradeOldNs(xmlDocPtr doc) {
xmlNsPtr cur;
if ((doc == NULL) || (doc->oldNs == NULL)) return;
if (doc->root == NULL) {
fprintf(stderr, "xmlUpgradeOldNs: failed no root !\n");
return;
}
cur = doc->oldNs;
while (cur->next != NULL) {
cur->type = XML_LOCAL_NAMESPACE;
cur = cur->next;
}
cur->type = XML_LOCAL_NAMESPACE;
cur->next = doc->root->nsDef;
doc->root->nsDef = doc->oldNs;
doc->oldNs = NULL;
}
/**
* xmlNewNs:
* @node: the element carrying the namespace
* @href: the URI associated
* @prefix: the prefix for the namespace
*
* Creation of a new Namespace.
* return values: returns a new namespace pointer
*/
xmlNsPtr
xmlNewNs(xmlNodePtr node, const CHAR *href, const CHAR *prefix) {
xmlNsPtr cur;
if (href == NULL) {
fprintf(stderr, "xmlNewNs: href == NULL !\n");
return(NULL);
}
/*
* Allocate a new DTD and fill the fields.
*/
cur = (xmlNsPtr) malloc(sizeof(xmlNs));
if (cur == NULL) {
fprintf(stderr, "xmlNewNs : malloc failed\n");
return(NULL);
}
cur->type = XML_LOCAL_NAMESPACE;
if (href != NULL)
cur->href = xmlStrdup(href);
else
cur->href = NULL;
if (prefix != NULL)
cur->prefix = xmlStrdup(prefix);
else
cur->prefix = NULL;
/*
* Add it at the end to preserve parsing order ...
*/
cur->next = NULL;
if (node != NULL) {
if (node->nsDef == NULL) {
node->nsDef = cur;
} else {
xmlNsPtr prev = node->nsDef;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
}
}
return(cur);
}
/**
* xmlNewGlobalNs:
* @doc: the document carrying the namespace
* @href: the URI associated
* @prefix: the prefix for the namespace
*
* Creation of a Namespace, the old way using PI and without scoping, to AVOID.
* return values: returns a new namespace pointer
*/
xmlNsPtr
xmlNewGlobalNs(xmlDocPtr doc, const CHAR *href, const CHAR *prefix) {
xmlNsPtr cur;
/*
* Allocate a new DTD and fill the fields.
*/
cur = (xmlNsPtr) malloc(sizeof(xmlNs));
if (cur == NULL) {
fprintf(stderr, "xmlNewGlobalNs : malloc failed\n");
return(NULL);
}
cur->type = XML_GLOBAL_NAMESPACE;
if (href != NULL)
cur->href = xmlStrdup(href);
else
cur->href = NULL;
if (prefix != NULL)
cur->prefix = xmlStrdup(prefix);
else
cur->prefix = NULL;
/*
* Add it at the end to preserve parsing order ...
*/
cur->next = NULL;
if (doc != NULL) {
if (doc->oldNs == NULL) {
doc->oldNs = cur;
} else {
xmlNsPtr prev = doc->oldNs;
while (prev->next != NULL) prev = prev->next;
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) {
fprintf(stderr, "xmlSetNs: node == NULL\n");
return;
}
node->ns = ns;
}
/**
* xmlFreeNs:
* @cur: the namespace pointer
*
* Free up the structures associated to a namespace
*/
void
xmlFreeNs(xmlNsPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlFreeNs : ns == NULL\n");
return;
}
if (cur->href != NULL) free((char *) cur->href);
if (cur->prefix != NULL) free((char *) cur->prefix);
memset(cur, -1, sizeof(xmlNs));
free(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) {
fprintf(stderr, "xmlFreeNsList : ns == NULL\n");
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.
* return values: a pointer to the new DTD structure
*/
xmlDtdPtr
xmlNewDtd(xmlDocPtr doc, const CHAR *name,
const CHAR *ExternalID, const CHAR *SystemID) {
xmlDtdPtr cur;
if ((doc != NULL) && (doc->dtd != NULL)) {
fprintf(stderr, "xmlNewDtd(%s): document %s already have a DTD %s\n",
/* !!! */ (char *) name, doc->name, /* !!! */ (char *)doc->dtd->name);
}
/*
* Allocate a new DTD and fill the fields.
*/
cur = (xmlDtdPtr) malloc(sizeof(xmlDtd));
if (cur == NULL) {
fprintf(stderr, "xmlNewDtd : malloc failed\n");
return(NULL);
}
if (name != NULL)
cur->name = xmlStrdup(name);
else
cur->name = NULL;
if (ExternalID != NULL)
cur->ExternalID = xmlStrdup(ExternalID);
else
cur->ExternalID = NULL;
if (SystemID != NULL)
cur->SystemID = xmlStrdup(SystemID);
else
cur->SystemID = NULL;
cur->elements = NULL;
cur->entities = NULL;
if (doc != NULL)
doc->dtd = cur;
return(cur);
}
/**
* xmlFreeDtd:
* @cur: the DTD structure to free up
*
* Free a DTD structure.
*/
void
xmlFreeDtd(xmlDtdPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlFreeDtd : DTD == NULL\n");
return;
}
if (cur->name != NULL) free((char *) cur->name);
if (cur->SystemID != NULL) free((char *) cur->SystemID);
if (cur->ExternalID != NULL) free((char *) cur->ExternalID);
if (cur->elements != NULL)
fprintf(stderr, "xmlFreeDtd: cur->elements != NULL !!! \n");
if (cur->entities != NULL)
xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->entities);
memset(cur, -1, sizeof(xmlDtd));
free(cur);
}
/**
* xmlNewDoc:
* @version: CHAR string giving the version of XML "1.0"
*
* Create a new document
*/
xmlDocPtr
xmlNewDoc(const CHAR *version) {
xmlDocPtr cur;
if (version == NULL) {
fprintf(stderr, "xmlNewDoc : version == NULL\n");
return(NULL);
}
/*
* Allocate a new document and fill the fields.
*/
cur = (xmlDocPtr) malloc(sizeof(xmlDoc));
if (cur == NULL) {
fprintf(stderr, "xmlNewDoc : malloc failed\n");
return(NULL);
}
cur->type = XML_DOCUMENT_NODE;
cur->version = xmlStrdup(version);
cur->name = NULL;
cur->root = NULL;
cur->dtd = NULL;
cur->oldNs = NULL;
cur->encoding = NULL;
cur->entities = NULL;
cur->standalone = -1;
cur->compression = xmlCompressMode;
#ifndef WITHOUT_CORBA
cur->_private = NULL;
cur->vepv = NULL;
#endif
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) {
fprintf(stderr, "xmlFreeDoc : document == NULL\n");
return;
}
free((char *) cur->version);
if (cur->name != NULL) free((char *) cur->name);
if (cur->encoding != NULL) free((char *) cur->encoding);
if (cur->root != NULL) xmlFreeNode(cur->root);
if (cur->dtd != NULL) xmlFreeDtd(cur->dtd);
if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);
if (cur->entities != NULL)
xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->entities);
memset(cur, -1, sizeof(xmlDoc));
free(cur);
}
/**
* xmlStringLenGetNodeList:
* @doc: the document
* @value: the value of the text
* @int 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.
* return values: a pointer to the first child
*/
xmlNodePtr
xmlStringLenGetNodeList(xmlDocPtr doc, const CHAR *value, int len) {
xmlNodePtr ret = NULL, last = NULL;
xmlNodePtr node;
CHAR *val;
const CHAR *cur = value;
const CHAR *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)) {
fprintf(stderr,
"xmlStringGetNodeList: unterminated entity %30s\n", q);
return(ret);
}
if (cur != q) {
/*
* Predefined entities don't generate nodes
*/
val = xmlStrndup(q, cur - q);
ent = xmlGetDocEntity(doc, val);
if ((ent != NULL) &&
(ent->type == 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) free(val);
return(ret);
}
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
free(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.
* return values: a pointer to the first child
*/
xmlNodePtr
xmlStringGetNodeList(xmlDocPtr doc, const CHAR *value) {
xmlNodePtr ret = NULL, last = NULL;
xmlNodePtr node;
CHAR *val;
const CHAR *cur = value;
const CHAR *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) {
fprintf(stderr,
"xmlStringGetNodeList: unterminated entity %30s\n", q);
return(ret);
}
if (cur != q) {
/*
* Predefined entities don't generate nodes
*/
val = xmlStrndup(q, cur - q);
ent = xmlGetDocEntity(doc, val);
if ((ent != NULL) &&
(ent->type == 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) free(val);
return(ret);
}
if (last == NULL)
last = ret = node;
else {
last->next = node;
node->prev = last;
last = node;
}
}
free(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
* return values: a pointer to the string copy, the calller must free it.
*/
CHAR *
xmlNodeListGetString(xmlDocPtr doc, xmlNodePtr list, int inLine) {
xmlNodePtr node = list;
CHAR *ret = NULL;
xmlEntityPtr ent;
if (list == NULL) return(NULL);
while (node != NULL) {
if (node->type == XML_TEXT_NODE) {
if (inLine)
ret = xmlStrcat(ret, node->content);
else
ret = xmlStrcat(ret, xmlEncodeEntities(doc, node->content));
} else if (node->type == XML_ENTITY_REF_NODE) {
if (inLine) {
ent = xmlGetDocEntity(doc, node->name);
if (ent != NULL)
ret = xmlStrcat(ret, ent->content);
else
ret = xmlStrcat(ret, node->content);
} else {
CHAR 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 {
fprintf(stderr, "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.
* return values: a pointer to the attribute
*/
xmlAttrPtr
xmlNewProp(xmlNodePtr node, const CHAR *name, const CHAR *value) {
xmlAttrPtr cur;
if (name == NULL) {
fprintf(stderr, "xmlNewProp : name == NULL\n");
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) malloc(sizeof(xmlAttr));
if (cur == NULL) {
fprintf(stderr, "xmlNewProp : malloc failed\n");
return(NULL);
}
cur->type = XML_ATTRIBUTE_NODE;
cur->node = node;
cur->name = xmlStrdup(name);
if (value != NULL)
cur->val = xmlStringGetNodeList(node->doc, value);
else
cur->val = NULL;
#ifndef WITHOUT_CORBA
cur->_private = NULL;
cur->vepv = NULL;
#endif
/*
* Add it at the end to preserve parsing order ...
*/
cur->next = NULL;
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;
}
}
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.
* return values: a pointer to the attribute
*/
xmlAttrPtr
xmlNewDocProp(xmlDocPtr doc, const CHAR *name, const CHAR *value) {
xmlAttrPtr cur;
if (name == NULL) {
fprintf(stderr, "xmlNewProp : name == NULL\n");
return(NULL);
}
/*
* Allocate a new property and fill the fields.
*/
cur = (xmlAttrPtr) malloc(sizeof(xmlAttr));
if (cur == NULL) {
fprintf(stderr, "xmlNewProp : malloc failed\n");
return(NULL);
}
cur->type = XML_ATTRIBUTE_NODE;
cur->node = NULL;
cur->name = xmlStrdup(name);
if (value != NULL)
cur->val = xmlStringGetNodeList(doc, value);
else
cur->val = NULL;
#ifndef WITHOUT_CORBA
cur->_private = NULL;
cur->vepv = NULL;
#endif
cur->next = NULL;
return(cur);
}
/**
* xmlFreePropList:
* @cur: the first property in the list
*
* Free a property and all its siblings, all the childs are freed too.
*/
void
xmlFreePropList(xmlAttrPtr cur) {
xmlAttrPtr next;
if (cur == NULL) {
fprintf(stderr, "xmlFreePropList : property == NULL\n");
return;
}
while (cur != NULL) {
next = cur->next;
xmlFreeProp(cur);
cur = next;
}
}
/**
* xmlFreeProp:
* @cur: the first property in the list
*
* Free one property, all the childs are freed too.
*/
void
xmlFreeProp(xmlAttrPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlFreeProp : property == NULL\n");
return;
}
if (cur->name != NULL) free((char *) cur->name);
if (cur->val != NULL) xmlFreeNodeList(cur->val);
memset(cur, -1, sizeof(xmlAttr));
free(cur);
}
/**
* xmlNewNode:
* @ns: namespace if any
* @name: the node name
* @content: the text content if any
*
* Creation of a new node element. @ns and @content are optionnal (NULL).
* If content is non NULL, a child list containing the TEXTs and
* ENTITY_REFs node will be created.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewNode(xmlNsPtr ns, const CHAR *name) {
xmlNodePtr cur;
if (name == NULL) {
fprintf(stderr, "xmlNewNode : name == NULL\n");
return(NULL);
}
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) malloc(sizeof(xmlNode));
if (cur == NULL) {
fprintf(stderr, "xmlNewNode : malloc failed\n");
return(NULL);
}
cur->type = XML_ELEMENT_NODE;
cur->doc = NULL;
cur->parent = NULL;
cur->next = NULL;
cur->prev = NULL;
cur->childs = NULL;
cur->properties = NULL;
cur->name = xmlStrdup(name);
cur->ns = ns;
cur->nsDef = NULL;
cur->content = NULL;
#ifndef WITHOUT_CORBA
cur->_private = NULL;
cur->vepv = NULL;
#endif
return(cur);
}
/**
* xmlNewDocNode:
* @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).
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocNode(xmlDocPtr doc, xmlNsPtr ns,
const CHAR *name, CHAR *content) {
xmlNodePtr cur;
cur = xmlNewNode(ns, name);
if (cur != NULL) {
cur->doc = doc;
if (content != NULL)
cur->childs = xmlStringGetNodeList(doc, content);
}
return(cur);
}
/**
* xmlNewText:
* @content: the text content
*
* Creation of a new text node.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewText(const CHAR *content) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) malloc(sizeof(xmlNode));
if (cur == NULL) {
fprintf(stderr, "xmlNewText : malloc failed\n");
return(NULL);
}
cur->type = XML_TEXT_NODE;
cur->doc = NULL;
cur->parent = NULL;
cur->next = NULL;
cur->prev = NULL;
cur->childs = NULL;
cur->properties = NULL;
cur->type = XML_TEXT_NODE;
cur->name = xmlStrdup(xmlStringText);
cur->ns = NULL;
cur->nsDef = NULL;
if (content != NULL)
cur->content = xmlStrdup(content);
else
cur->content = NULL;
return(cur);
}
/**
* xmlNewReference:
* @doc: the document
* @name: the reference name, or the reference string with & and ;
*
* Creation of a new reference node.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewReference(xmlDocPtr doc, const CHAR *name) {
xmlNodePtr cur;
xmlEntityPtr ent;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) malloc(sizeof(xmlNode));
if (cur == NULL) {
fprintf(stderr, "xmlNewText : malloc failed\n");
return(NULL);
}
cur->type = XML_ENTITY_REF_NODE;
cur->doc = doc;
cur->parent = NULL;
cur->next = NULL;
cur->prev = NULL;
cur->childs = NULL;
cur->properties = NULL;
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);
cur->ns = NULL;
cur->nsDef = NULL;
ent = xmlGetDocEntity(doc, cur->name);
if (ent != NULL)
cur->content = ent->content;
else
cur->content = NULL;
return(cur);
}
/**
* xmlNewDocText:
* @doc: the document
* @content: the text content
*
* Creation of a new text node within a document.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocText(xmlDocPtr doc, const CHAR *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
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewTextLen(const CHAR *content, int len) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) malloc(sizeof(xmlNode));
if (cur == NULL) {
fprintf(stderr, "xmlNewText : malloc failed\n");
return(NULL);
}
cur->type = XML_TEXT_NODE;
cur->doc = NULL;
cur->parent = NULL;
cur->prev = NULL;
cur->next = NULL;
cur->childs = NULL;
cur->properties = NULL;
cur->type = XML_TEXT_NODE;
cur->name = xmlStrdup(xmlStringText);
cur->ns = NULL;
cur->nsDef = NULL;
if (content != NULL)
cur->content = xmlStrndup(content, len);
else
cur->content = NULL;
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.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocTextLen(xmlDocPtr doc, const CHAR *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.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewComment(CHAR *content) {
xmlNodePtr cur;
/*
* Allocate a new node and fill the fields.
*/
cur = (xmlNodePtr) malloc(sizeof(xmlNode));
if (cur == NULL) {
fprintf(stderr, "xmlNewComment : malloc failed\n");
return(NULL);
}
cur->type = XML_COMMENT_NODE;
cur->doc = NULL;
cur->parent = NULL;
cur->prev = NULL;
cur->next = NULL;
cur->childs = NULL;
cur->properties = NULL;
cur->type = XML_COMMENT_NODE;
cur->name = xmlStrdup(xmlStringText);
cur->ns = NULL;
cur->nsDef = NULL;
if (content != NULL)
cur->content = xmlStrdup(content);
else
cur->content = NULL;
return(cur);
}
/**
* xmlNewComment:
* @doc: the document
* @content: the comment content
*
* Creation of a new node containing a commentwithin a document.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewDocComment(xmlDocPtr doc, CHAR *content) {
xmlNodePtr cur;
cur = xmlNewComment(content);
if (cur != NULL) cur->doc = doc;
return(cur);
}
/**
* xmlNewChild:
* @parent: the parent node
* @ns: a namespace if any
* @name: the name of the child
* @content: the content of the child if any.
*
*
* Creation of a new child element, added at the end of @parent childs 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.
* return values: a pointer to the new node object.
*/
xmlNodePtr
xmlNewChild(xmlNodePtr parent, xmlNsPtr ns,
const CHAR *name, CHAR *content) {
xmlNodePtr cur, prev;
if (parent == NULL) {
fprintf(stderr, "xmlNewChild : parent == NULL\n");
return(NULL);
}
if (name == NULL) {
fprintf(stderr, "xmlNewChild : name == NULL\n");
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 childs list.
*/
cur->type = XML_ELEMENT_NODE;
cur->parent = parent;
cur->doc = parent->doc;
if (parent->childs == NULL) {
parent->childs = cur;
} else {
prev = parent->childs;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
cur->prev = prev;
}
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.
* return values: the child or NULL in case of error.
*/
xmlNodePtr
xmlAddChild(xmlNodePtr parent, xmlNodePtr cur) {
xmlNodePtr prev;
if (parent == NULL) {
fprintf(stderr, "xmladdChild : parent == NULL\n");
return(NULL);
}
if (cur == NULL) {
fprintf(stderr, "xmladdChild : child == NULL\n");
return(NULL);
}
if ((cur->doc != NULL) && (parent->doc != NULL) &&
(cur->doc != parent->doc)) {
fprintf(stderr, "Elements moved to a different document\n");
}
/*
* add the new element at the end of the childs list.
*/
cur->parent = parent;
cur->doc = parent->doc; /* the parent may not be linked to a doc ! */
/*
* Handle the case where parent->content != NULL, in that case it will
* create a intermediate TEXT node.
*/
if (parent->content != NULL) {
xmlNodePtr text;
text = xmlNewDocText(parent->doc, parent->content);
if (text != NULL) {
text->next = parent->childs;
if (text->next != NULL)
text->next->prev = text;
parent->childs = text;
free(parent->content);
parent->content = NULL;
}
}
if (parent->childs == NULL) {
parent->childs = cur;
} else {
prev = parent->childs;
while (prev->next != NULL) prev = prev->next;
prev->next = cur;
cur->prev = prev;
}
return(cur);
}
/**
* xmlGetLastChild:
* @parent: the parent node
*
* Search the last child of a node.
* return values: the last child or NULL if none.
*/
xmlNodePtr
xmlGetLastChild(xmlNodePtr parent) {
xmlNodePtr last;
if (parent == NULL) {
fprintf(stderr, "xmlGetLastChild : parent == NULL\n");
return(NULL);
}
/*
* add the new element at the end of the childs list.
*/
if (parent->childs == NULL) {
return(NULL);
} else {
last = parent->childs;
while (last->next != NULL) last = last->next;
}
return(last);
}
/**
* xmlFreeNodeList:
* @cur: the first node in the list
*
* Free a node and all its siblings, this is a recursive behaviour, all
* the childs are freed too.
*/
void
xmlFreeNodeList(xmlNodePtr cur) {
xmlNodePtr next;
if (cur == NULL) {
fprintf(stderr, "xmlFreeNodeList : node == NULL\n");
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 childs are freed too.
*/
void
xmlFreeNode(xmlNodePtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlFreeNode : node == NULL\n");
return;
}
cur->doc = NULL;
cur->parent = NULL;
cur->next = NULL;
cur->prev = NULL;
if (cur->childs != NULL) xmlFreeNodeList(cur->childs);
if (cur->properties != NULL) xmlFreePropList(cur->properties);
if (cur->type != XML_ENTITY_REF_NODE)
if (cur->content != NULL) free(cur->content);
if (cur->name != NULL) free((char *) cur->name);
if (cur->nsDef != NULL) xmlFreeNsList(cur->nsDef);
memset(cur, -1, sizeof(xmlNode));
free(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) {
fprintf(stderr, "xmlUnlinkNode : node == NULL\n");
return;
}
if ((cur->parent != NULL) && (cur->parent->childs == cur))
cur->parent->childs = cur->next;
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;
}
/************************************************************************
* *
* 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_GLOBAL_NAMESPACE:
ret = xmlNewGlobalNs(NULL, cur->href, cur->prefix);
break;
case XML_LOCAL_NAMESPACE:
ret = xmlNewNs(NULL, cur->href, cur->prefix);
break;
default:
fprintf(stderr, "xmlCopyNamespace: unknown type %d\n", cur->type);
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);
}
/**
* xmlCopyProp:
* @cur: the attribute
*
* Do a copy of the attribute.
*
* Returns: a new xmlAttrPtr, or NULL in case of error.
*/
xmlAttrPtr
xmlCopyProp(xmlAttrPtr cur) {
xmlAttrPtr ret;
if (cur == NULL) return(NULL);
if (cur->val != NULL)
ret = xmlNewDocProp(cur->val->doc, cur->name, NULL);
else
ret = xmlNewDocProp(NULL, cur->name, NULL);
if (ret == NULL) return(NULL);
if (cur->val != NULL)
ret->val = xmlCopyNodeList(cur->val);
return(ret);
}
/**
* xmlCopyPropList:
* @cur: the first attribute
*
* Do a copy of an attribute list.
*
* Returns: a new xmlAttrPtr, or NULL in case of error.
*/
xmlAttrPtr
xmlCopyPropList(xmlAttrPtr cur) {
xmlAttrPtr ret = NULL;
xmlAttrPtr p = NULL,q;
while (cur != NULL) {
q = xmlCopyProp(cur);
if (p == NULL) {
ret = p = q;
} else {
p->next = q;
p = q;
}
cur = cur->next;
}
return(ret);
}
/*
* NOTE about 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) malloc(sizeof(xmlNode));
if (ret == NULL) {
fprintf(stderr, "xmlStaticCopyNode : malloc failed\n");
return(NULL);
}
ret->type = node->type;
ret->doc = doc;
ret->parent = parent;
ret->next = NULL;
ret->prev = NULL;
ret->childs = NULL;
ret->properties = NULL;
if (node->name != NULL)
ret->name = xmlStrdup(node->name);
else
ret->name = NULL;
ret->ns = NULL;
ret->nsDef = NULL;
if ((node->content != NULL) && (node->type != XML_ENTITY_REF_NODE))
ret->content = xmlStrdup(node->content);
else
ret->content = NULL;
#ifndef WITHOUT_CORBA
ret->_private = NULL;
ret->vepv = NULL;
#endif
if (parent != NULL)
xmlAddChild(parent, ret);
if (!recursive) return(ret);
if (node->properties != NULL)
ret->properties = xmlCopyPropList(node->properties);
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->childs != NULL)
ret->childs = xmlStaticCopyNodeList(node->childs, doc, ret);
return(ret);
}
static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {
xmlNodePtr ret = NULL;
xmlNodePtr p = NULL,q;
while (node != NULL) {
q = xmlStaticCopyNode(node, doc, parent, 1);
if (parent == NULL) {
if (ret == NULL) ret = q;
} else {
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->childs != NULL)
ret->childs = xmlCopyElementList(elem->childs);
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);
/*
* TODO: support for Element definitions.
*/
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 = strdup(doc->name);
if (doc->encoding != NULL)
ret->encoding = xmlStrdup(doc->encoding);
ret->compression = doc->compression;
ret->standalone = doc->standalone;
if (!recursive) return(ret);
if (doc->dtd != NULL)
ret->dtd = xmlCopyDtd(doc->dtd);
if (doc->entities != NULL)
ret->entities = (void *) xmlCopyEntitiesTable(
(xmlEntitiesTablePtr) doc->entities);
if (doc->oldNs != NULL)
ret->oldNs = xmlCopyNamespaceList(doc->oldNs);
if (doc->root != NULL)
ret->root = xmlStaticCopyNodeList(doc->root, ret, NULL);
return(ret);
}
/************************************************************************
* *
* Content access functions *
* *
************************************************************************/
/**
* 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.
* Return value: a new CHAR * or NULL if no content is available.
*/
CHAR *
xmlNodeGetContent(xmlNodePtr cur) {
if (cur == NULL) return(NULL);
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:
return(xmlNodeListGetString(cur->doc, cur->childs, 1));
break;
case XML_ATTRIBUTE_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_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
case XML_NOTATION_NODE:
return(NULL);
case XML_TEXT_NODE:
if (cur->content != NULL)
return(xmlStrdup(cur->content));
return(NULL);
}
return(NULL);
}
/**
* xmlNodeSetContent:
* @cur: the node being modified
* @content: the new value of the content
*
* Replace the content of a node.
*/
void
xmlNodeSetContent(xmlNodePtr cur, const CHAR *content) {
if (cur == NULL) {
fprintf(stderr, "xmlNodeSetContent : node == NULL\n");
return;
}
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:
if (cur->content != NULL) {
free(cur->content);
cur->content = NULL;
}
if (cur->childs != NULL) xmlFreeNode(cur->childs);
cur->childs = xmlStringGetNodeList(cur->doc, content);
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) free(cur->content);
if (cur->childs != NULL) xmlFreeNode(cur->childs);
if (content != NULL)
cur->content = xmlStrdup(content);
else
cur->content = NULL;
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
break;
case XML_NOTATION_NODE:
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 CHAR *content, int len) {
if (cur == NULL) {
fprintf(stderr, "xmlNodeSetContentLen : node == NULL\n");
return;
}
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE:
if (cur->content != NULL) {
free(cur->content);
cur->content = NULL;
}
if (cur->childs != NULL) xmlFreeNode(cur->childs);
cur->childs = xmlStringLenGetNodeList(cur->doc, content, len);
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) free(cur->content);
if (cur->childs != NULL) xmlFreeNode(cur->childs);
if (content != NULL)
cur->content = xmlStrndup(content, len);
else
cur->content = NULL;
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
break;
case XML_NOTATION_NODE:
if (cur->content != NULL) free(cur->content);
if (content != NULL)
cur->content = xmlStrndup(content, len);
else
cur->content = NULL;
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 CHAR *content, int len) {
if (cur == NULL) {
fprintf(stderr, "xmlNodeAddContentLen : node == NULL\n");
return;
}
if (len <= 0) return;
switch (cur->type) {
case XML_DOCUMENT_FRAG_NODE:
case XML_ELEMENT_NODE: {
xmlNodePtr last = NULL, new;
if (cur->childs != NULL) {
last = cur->childs;
while (last->next != NULL) last = last->next;
} else {
if (cur->content != NULL) {
cur->childs = xmlStringGetNodeList(cur->doc, cur->content);
free(cur->content);
cur->content = NULL;
if (cur->childs != NULL) {
last = cur->childs;
while (last->next != NULL) last = last->next;
}
}
}
new = xmlStringLenGetNodeList(cur->doc, content, len);
if (new != NULL) {
xmlAddChild(cur, new);
if ((last != NULL) && (last->next == new))
xmlTextMerge(last, new);
}
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 (content != NULL)
cur->content = xmlStrncat(cur->content, content, len);
case XML_DOCUMENT_NODE:
case XML_DOCUMENT_TYPE_NODE:
break;
case XML_NOTATION_NODE:
if (content != NULL)
cur->content = xmlStrncat(cur->content, content, len);
break;
}
}
/**
* xmlNodeAddContent:
* @cur: the node being modified
* @content: extra content
*
* Append the extra substring to the node content.
*/
void
xmlNodeAddContent(xmlNodePtr cur, const CHAR *content) {
int len;
if (cur == NULL) {
fprintf(stderr, "xmlNodeAddContent : node == NULL\n");
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
* Return values: 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);
xmlNodeAddContent(first, second->content);
xmlUnlinkNode(second);
xmlFreeNode(second);
return(first);
}
/**
* xmlSearchNs:
* @doc: the document
* @node: the current node
* @nameSpace: the namespace string
*
* 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.
* return values: the namespace pointer or NULL.
*/
xmlNsPtr
xmlSearchNs(xmlDocPtr doc, xmlNodePtr node, const CHAR *nameSpace) {
xmlNsPtr cur;
while (node != NULL) {
cur = node->nsDef;
while (cur != NULL) {
if ((cur->prefix == NULL) && (nameSpace == NULL))
return(cur);
if ((cur->prefix != NULL) && (nameSpace != NULL) &&
(!xmlStrcmp(cur->prefix, nameSpace)))
return(cur);
cur = cur->next;
}
node = node->parent;
}
if (doc != NULL) {
cur = doc->oldNs;
while (cur != NULL) {
if ((cur->prefix != NULL) && (nameSpace != NULL) &&
(!xmlStrcmp(cur->prefix, nameSpace)))
return(cur);
cur = cur->next;
}
}
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.
* return values: the namespace pointer or NULL.
*/
xmlNsPtr
xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const CHAR *href) {
xmlNsPtr cur;
while (node != NULL) {
cur = node->nsDef;
while (cur != NULL) {
if ((cur->href != NULL) && (href != NULL) &&
(!xmlStrcmp(cur->href, href)))
return(cur);
cur = cur->next;
}
node = node->parent;
}
if (doc != NULL) {
cur = doc->oldNs;
while (cur != NULL) {
if ((cur->href != NULL) && (href != NULL) &&
(!xmlStrcmp(cur->href, href)))
return(cur);
cur = cur->next;
}
}
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.
*
* return values: the attribute value or NULL if not found.
*/
const CHAR *xmlGetProp(xmlNodePtr node, const CHAR *name) {
xmlAttrPtr prop = node->properties;
while (prop != NULL) {
if (!xmlStrcmp(prop->name, name)) {
if (prop->val != NULL)
return(xmlNodeListGetString(node->doc, prop->val, 1));
else
return(xmlStrndup("", 1));
}
prop = prop->next;
}
return(NULL);
}
/**
* xmlSetProp:
* @node: the node
* @name: the attribute name
* @value: the attribute value
*
* Set (or reset) an attribute carried by a node.
* return values: the attribute pointer.
*/
xmlAttrPtr
xmlSetProp(xmlNodePtr node, const CHAR *name, const CHAR *value) {
xmlAttrPtr prop = node->properties;
while (prop != NULL) {
if (!xmlStrcmp(prop->name, name)) {
if (prop->val != NULL)
xmlFreeNode(prop->val);
prop->val = NULL;
if (value != NULL)
prop->val = xmlStringGetNodeList(node->doc, value);
return(prop);
}
prop = prop->next;
}
prop = xmlNewProp(node, name, value);
return(prop);
}
/**
* xmlNodeIsText:
* @node: the node
*
* Is this node a Text node ?
* return values: 1 yes, 0 no
*/
int
xmlNodeIsText(xmlNodePtr node) {
if (node == NULL) return(0);
if (node->type == XML_TEXT_NODE) return(1);
return(0);
}
/**
* xmlNodeIsText:
* @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 CHAR *content, int len) {
if (node == NULL) return;
if (node->type != XML_TEXT_NODE) {
fprintf(stderr, "xmlTextConcat: node is not text\n");
return;
}
node->content = xmlStrncat(node->content, content, len);
}
/************************************************************************
* *
* Output : to a FILE or in memory *
* *
************************************************************************/
static CHAR *buffer = NULL;
static int buffer_index = 0;
static int buffer_size = 0;
/**
* xmlBufferWriteCHAR:
* @string: the string to add
*
* routine which manage and grows an output buffer. This one add
* CHARs at the end of the array.
*/
void
xmlBufferWriteCHAR(const CHAR *string) {
const CHAR *cur;
if (buffer == NULL) {
buffer_size = 50000;
buffer = (CHAR *) malloc(buffer_size * sizeof(CHAR));
if (buffer == NULL) {
fprintf(stderr, "xmlBufferWrite : out of memory!\n");
exit(1);
}
}
if (string == NULL) return;
for (cur = string;*cur != 0;cur++) {
if (buffer_index + 10 >= buffer_size) {
buffer_size *= 2;
buffer = (CHAR *) realloc(buffer, buffer_size * sizeof(CHAR));
if (buffer == NULL) {
fprintf(stderr, "xmlBufferWrite : out of memory!\n");
exit(1);
}
}
buffer[buffer_index++] = *cur;
}
buffer[buffer_index] = 0;
}
/**
* xmlBufferWriteChar:
* @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(const char *string) {
const char *cur;
if (buffer == NULL) {
buffer_size = 50000;
buffer = (CHAR *) malloc(buffer_size * sizeof(CHAR));
if (buffer == NULL) {
fprintf(stderr, "xmlBufferWrite : out of memory!\n");
exit(1);
}
}
if (string == NULL) return;
for (cur = string;*cur != 0;cur++) {
if (buffer_index + 10 >= buffer_size) {
buffer_size *= 2;
buffer = (CHAR *) realloc(buffer, buffer_size * sizeof(CHAR));
if (buffer == NULL) {
fprintf(stderr, "xmlBufferWrite : out of memory!\n");
exit(1);
}
}
buffer[buffer_index++] = *cur;
}
buffer[buffer_index] = 0;
}
/**
* xmlGlobalNsDump:
* @cur: a namespace
*
* Dump a global Namespace, this is the old version based on PIs.
*/
static void
xmlGlobalNsDump(xmlNsPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlGlobalNsDump : Ns == NULL\n");
return;
}
if (cur->type == XML_GLOBAL_NAMESPACE) {
xmlBufferWriteChar("<?namespace");
if (cur->href != NULL) {
xmlBufferWriteChar(" href=\"");
xmlBufferWriteCHAR(cur->href);
xmlBufferWriteChar("\"");
}
if (cur->prefix != NULL) {
xmlBufferWriteChar(" AS=\"");
xmlBufferWriteCHAR(cur->prefix);
xmlBufferWriteChar("\"");
}
xmlBufferWriteChar("?>\n");
}
}
/**
* xmlGlobalNsListDump:
* @cur: the first namespace
*
* Dump a list of global Namespace, this is the old version based on PIs.
*/
static void
xmlGlobalNsListDump(xmlNsPtr cur) {
while (cur != NULL) {
xmlGlobalNsDump(cur);
cur = cur->next;
}
}
/**
* xmlNsDump:
* @cur: a namespace
*
* Dump a local Namespace definition.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsDump(xmlNsPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlNsDump : Ns == NULL\n");
return;
}
if (cur->type == XML_LOCAL_NAMESPACE) {
/* Within the context of an element attributes */
if (cur->prefix != NULL) {
xmlBufferWriteChar(" xmlns:");
xmlBufferWriteCHAR(cur->prefix);
} else
xmlBufferWriteChar(" xmlns");
xmlBufferWriteChar("=\"");
xmlBufferWriteCHAR(cur->href);
xmlBufferWriteChar("\"");
}
}
/**
* xmlNsListDump:
* @cur: the first namespace
*
* Dump a list of local Namespace definitions.
* Should be called in the context of attributes dumps.
*/
static void
xmlNsListDump(xmlNsPtr cur) {
while (cur != NULL) {
xmlNsDump(cur);
cur = cur->next;
}
}
/**
* xmlDtdDump:
* @doc: the document
*
* Dump the XML document DTD, if any.
*/
static void
xmlDtdDump(xmlDocPtr doc) {
xmlDtdPtr cur = doc->dtd;
if (cur == NULL) {
fprintf(stderr, "xmlDtdDump : DTD == NULL\n");
return;
}
xmlBufferWriteChar("<!DOCTYPE ");
xmlBufferWriteCHAR(cur->name);
if (cur->ExternalID != NULL) {
xmlBufferWriteChar(" PUBLIC \"");
xmlBufferWriteCHAR(cur->ExternalID);
xmlBufferWriteChar("\" \"");
xmlBufferWriteCHAR(cur->SystemID);
xmlBufferWriteChar("\"");
} else if (cur->SystemID != NULL) {
xmlBufferWriteChar(" SYSTEM \"");
xmlBufferWriteCHAR(cur->SystemID);
xmlBufferWriteChar("\"");
}
if ((cur->entities == NULL) && (doc->entities == NULL)) {
xmlBufferWriteChar(">\n");
return;
}
xmlBufferWriteChar(" [\n");
if (cur->entities != NULL)
xmlDumpEntitiesTable((xmlEntitiesTablePtr) cur->entities);
if (doc->entities != NULL)
xmlDumpEntitiesTable((xmlEntitiesTablePtr) doc->entities);
xmlBufferWriteChar("]");
/* TODO !!! a lot more things to dump ... */
xmlBufferWriteChar(">\n");
}
/**
* xmlAttrDump:
* @doc: the document
* @cur: the attribute pointer
*
* Dump an XML attribute
*/
static void
xmlAttrDump(xmlDocPtr doc, xmlAttrPtr cur) {
CHAR *value;
if (cur == NULL) {
fprintf(stderr, "xmlAttrDump : property == NULL\n");
return;
}
xmlBufferWriteChar(" ");
xmlBufferWriteCHAR(cur->name);
xmlBufferWriteChar("=\"");
value = xmlNodeListGetString(doc, cur->val, 0);
if (value) {
xmlBufferWriteCHAR(value);
free(value);
}
xmlBufferWriteChar("\"");
}
/**
* xmlAttrListDump:
* @doc: the document
* @cur: the first attribute pointer
*
* Dump a list of XML attributes
*/
static void
xmlAttrListDump(xmlDocPtr doc, xmlAttrPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlAttrListDump : property == NULL\n");
return;
}
while (cur != NULL) {
xmlAttrDump(doc, cur);
cur = cur->next;
}
}
static void
xmlNodeDump(xmlDocPtr doc, xmlNodePtr cur, int level);
/**
* xmlNodeListDump:
* @doc: the document
* @cur: the first node
* @level: the imbrication level for indenting
*
* Dump an XML node list, recursive behaviour,children are printed too.
*/
static void
xmlNodeListDump(xmlDocPtr doc, xmlNodePtr cur, int level) {
int needIndent = 0, i;
if (cur == NULL) {
fprintf(stderr, "xmlNodeListDump : node == NULL\n");
return;
}
while (cur != NULL) {
if ((cur->type != XML_TEXT_NODE) &&
(cur->type != XML_ENTITY_REF_NODE)) {
if (!needIndent) {
needIndent = 1;
xmlBufferWriteChar("\n");
}
}
xmlNodeDump(doc, cur, level);
cur = cur->next;
}
if ((xmlIndentTreeOutput) && (needIndent))
for (i = 1;i < level;i++)
xmlBufferWriteChar(" ");
}
/**
* xmlNodeDump:
* @doc: the document
* @cur: the current node
* @level: the imbrication level for indenting
*
* Dump an XML node, recursive behaviour,children are printed too.
*/
static void
xmlNodeDump(xmlDocPtr doc, xmlNodePtr cur, int level) {
int i;
if (cur == NULL) {
fprintf(stderr, "xmlNodeDump : node == NULL\n");
return;
}
if (cur->type == XML_TEXT_NODE) {
if (cur->content != NULL)
xmlBufferWriteCHAR(xmlEncodeEntities(doc, cur->content));
return;
}
if (cur->type == XML_COMMENT_NODE) {
if (cur->content != NULL) {
xmlBufferWriteChar("<!--");
xmlBufferWriteCHAR(cur->content);
xmlBufferWriteChar("-->");
}
return;
}
if (cur->type == XML_ENTITY_REF_NODE) {
xmlBufferWriteChar("&");
xmlBufferWriteCHAR(cur->name);
xmlBufferWriteChar(";");
return;
}
if (xmlIndentTreeOutput)
for (i = 0;i < level;i++)
xmlBufferWriteChar(" ");
xmlBufferWriteChar("<");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlBufferWriteCHAR(cur->ns->prefix);
xmlBufferWriteChar(":");
}
xmlBufferWriteCHAR(cur->name);
if (cur->nsDef)
xmlNsListDump(cur->nsDef);
if (cur->properties != NULL)
xmlAttrListDump(doc, cur->properties);
if ((cur->content == NULL) && (cur->childs == NULL)) {
xmlBufferWriteChar("/>\n");
return;
}
xmlBufferWriteChar(">");
if (cur->content != NULL)
xmlBufferWriteCHAR(xmlEncodeEntities(doc, cur->content));
if (cur->childs != NULL) {
xmlNodeListDump(doc, cur->childs, level + 1);
}
xmlBufferWriteChar("</");
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
xmlBufferWriteCHAR(cur->ns->prefix);
xmlBufferWriteChar(":");
}
xmlBufferWriteCHAR(cur->name);
xmlBufferWriteChar(">\n");
}
/**
* xmlDocContentDump:
* @cur: the document
*
* Dump an XML document.
*/
static void
xmlDocContentDump(xmlDocPtr cur) {
if (oldXMLWDcompatibility)
xmlBufferWriteChar("<?XML version=\"");
else
xmlBufferWriteChar("<?xml version=\"");
xmlBufferWriteCHAR(cur->version);
xmlBufferWriteChar("\"");
if (cur->encoding != NULL) {
xmlBufferWriteChar(" encoding=\"");
xmlBufferWriteCHAR(cur->encoding);
xmlBufferWriteChar("\"");
}
switch (cur->standalone) {
case 0:
xmlBufferWriteChar(" standalone=\"no\"");
break;
case 1:
xmlBufferWriteChar(" standalone=\"yes\"");
break;
}
xmlBufferWriteChar("?>\n");
if ((cur->dtd != NULL) || (cur->entities != NULL))
xmlDtdDump(cur);
if (cur->root != NULL) {
/* global namespace definitions, the old way */
if (oldXMLWDcompatibility)
xmlGlobalNsListDump(cur->oldNs);
else
xmlUpgradeOldNs(cur);
xmlNodeDump(cur, cur->root, 0);
}
}
/**
* xmlDocDumpMemory:
* @cur: the document
* @mem: OUT: the memory pointer
* @size: OUT: the memory lenght
*
* Dump an XML document in memory and return the CHAR * and it's size.
* It's up to the caller to free the memory.
*/
void
xmlDocDumpMemory(xmlDocPtr cur, CHAR**mem, int *size) {
if (cur == NULL) {
fprintf(stderr, "xmlDocDump : document == NULL\n");
*mem = NULL;
*size = 0;
return;
}
buffer_index = 0;
xmlDocContentDump(cur);
*mem = buffer;
*size = buffer_index;
}
/**
* xmlGetDocCompressMode:
* @doc: the document
*
* get the compression ratio for a document, ZLIB based
* return values: 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.
* return values: 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.
*/
void
xmlDocDump(FILE *f, xmlDocPtr cur) {
if (cur == NULL) {
fprintf(stderr, "xmlDocDump : document == NULL\n");
return;
}
buffer_index = 0;
xmlDocContentDump(cur);
fwrite(buffer, sizeof(CHAR), buffer_index, f);
}
/**
* xmlSaveFile:
* @filename: the filename
* @cur: the document
*
* Dump an XML document to a file. Will use compression if
* compiled in and enabled.
* returns: the number of file written or -1 in case of failure.
*/
int
xmlSaveFile(const char *filename, xmlDocPtr cur) {
#ifdef HAVE_ZLIB_H
gzFile zoutput = NULL;
char mode[15];
#endif
FILE *output = NULL;
int ret;
#ifdef HAVE_ZLIB_H
if ((cur->compression > 0) && (cur->compression <= 9)) {
sprintf(mode, "w%d", cur->compression);
zoutput = gzopen(filename, mode);
}
if (zoutput == NULL) {
#endif
output = fopen(filename, "w");
if (output == NULL) return(-1);
#ifdef HAVE_ZLIB_H
}
#endif
/*
* save the content to a temp buffer.
*/
buffer_index = 0;
xmlDocContentDump(cur);
#ifdef HAVE_ZLIB_H
if (zoutput != NULL) {
ret = gzwrite(zoutput, buffer, sizeof(CHAR) * buffer_index);
gzclose(zoutput);
return(ret);
}
#endif
ret = fwrite(buffer, sizeof(CHAR), buffer_index, output);
fclose(output);
return(ret * sizeof(CHAR));
}
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