xpathparser.c File Reference

#include "xsb_config.h"
#include <assert.h>
#include "cinterf.h"
#include <libxml/xpathInternals.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "fetch_file.c"

Defines
#define	MY_ENCODING   "ISO-8859-1"
#define	MAXSTRLEN   256
#define	MAXSTRINGLEN   32000
Enumerations
enum	plerrorid {   ERR_ERRNO, ERR_TYPE, ERR_DOMAIN, ERR_EXISTENCE,   ERR_FAIL, ERR_LIMIT, ERR_MISC }
Functions
int	xpath_error (plerrorid,...)
int	execute_xpath_expression (const char *xmlsource, const xmlChar *xpathExpr, const xmlChar *nsList, prolog_term output_term, char flag)
int	register_namespaces (xmlXPathContextPtr xpathCtx, const xmlChar *nsList)
void	print_xpath_nodes (xmlNodeSetPtr nodes, FILE *output)
DllExport int call_conv	allocate_xpath_error_term__ ()
DllExport int call_conv	parse_xpath__ ()
Variables
prolog_term	xpath_error_term

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Define Documentation

#define MAXSTRINGLEN   32000

#define MAXSTRLEN   256

#define MY_ENCODING   "ISO-8859-1"

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Enumeration Type Documentation

enum plerrorid

Enumerator: ERR_ERRNO  ERR_TYPE  ERR_DOMAIN  ERR_EXISTENCE  ERR_FAIL  ERR_LIMIT  ERR_MISC

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Function Documentation

DllExport int call_conv allocate_xpath_error_term__ (   )

Allocate the global error term. This term is used to throw the exception on the prolog side. Input : none Output : none

int execute_xpath_expression (  const char *  xmlsource, const xmlChar *  xpathExpr, const xmlChar *  nsList, prolog_term  output_term, char  flag )

This is the main function which evaluates the xpath query on the xml input Input : xml source, xpath query, namespace prefix, type of xml source (file or buffer) Output : Resultant xml

DllExport int call_conv parse_xpath__ (   )

This is the main function used to evaluate the xpath expression Input : Xml source, xpath expression, namespace prefix specifications Output : Resultant xml after evaluating xpath

void print_xpath_nodes (  xmlNodeSetPtr  nodes, FILE *  output )

int register_namespaces (  xmlXPathContextPtr  xpathCtx, const xmlChar *  nsList )

Register the namespaces prefixes to be used in xpath expressions while handling namespaces Input : pointer to context object, list of prefix = naamespace url Output : TRUE on success/ FALSE on failure

int xpath_error (  plerrorid  id,   ... )

Error handling term. Creates error term to throw on the prolog side Input : error type Output : TRUE on success/ FALSE on failure

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Variable Documentation

prolog_term xpath_error_term

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