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/*
* This file is part of libdom.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2007 John-Mark Bell <jmb@netsurf-browser.org>
*/
#include <stdlib.h>
#include "core/document.h"
#include "core/node.h"
#include "core/pi.h"
#include "utils/utils.h"
/**
* A DOM processing instruction
*/
struct dom_processing_instruction {
dom_node_internal base; /**< Base node */
};
static struct dom_node_vtable pi_vtable = {
{
DOM_NODE_EVENT_TARGET_VTABLE
},
DOM_NODE_VTABLE
};
static struct dom_node_protect_vtable pi_protect_vtable = {
DOM_PI_PROTECT_VTABLE
};
/**
* Create a processing instruction
*
* \param doc The owning document
* \param name The name of the node to create
* \param value The text content of the node
* \param result Pointer to location to receive created node
* \return DOM_NO_ERR on success,
* DOM_NO_MEM_ERR on memory exhaustion.
*
* ::doc, ::name and ::value will have their reference counts increased.
*
* The returned node will already be referenced.
*/
dom_exception _dom_processing_instruction_create(dom_document *doc,
dom_string *name, dom_string *value,
dom_processing_instruction **result)
{
dom_processing_instruction *p;
dom_exception err;
/* Allocate the comment node */
p = malloc(sizeof(dom_processing_instruction));
if (p == NULL)
return DOM_NO_MEM_ERR;
p->base.base.vtable = &pi_vtable;
p->base.vtable = &pi_protect_vtable;
/* And initialise the node */
err = _dom_processing_instruction_initialise(&p->base, doc,
DOM_PROCESSING_INSTRUCTION_NODE,
name, value, NULL, NULL);
if (err != DOM_NO_ERR) {
free(p);
return err;
}
*result = p;
return DOM_NO_ERR;
}
/**
* Destroy a processing instruction
*
* \param pi The processing instruction to destroy
*
* The contents of ::pi will be destroyed and ::pi will be freed.
*/
void _dom_processing_instruction_destroy(dom_processing_instruction *pi)
{
/* Finalise base class */
_dom_processing_instruction_finalise(&pi->base);
/* Free processing instruction */
free(pi);
}
/*-----------------------------------------------------------------------*/
/* Following comes the protected vtable */
/* The virtual destroy function of this class */
void _dom_pi_destroy(dom_node_internal *node)
{
_dom_processing_instruction_destroy(
(dom_processing_instruction *) node);
}
/* The copy constructor of this class */
dom_exception _dom_pi_copy(dom_node_internal *old, dom_node_internal **copy)
{
dom_processing_instruction *new_pi;
dom_exception err;
new_pi = malloc(sizeof(dom_processing_instruction));
if (new_pi == NULL)
return DOM_NO_MEM_ERR;
err = dom_node_copy_internal(old, new_pi);
if (err != DOM_NO_ERR) {
free(new_pi);
return err;
}
*copy = (dom_node_internal *) copy;
return DOM_NO_ERR;
}
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