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/**
* Copyright 2008 Digital Bazaar, Inc.
*
* This file is part of librdfa.
*
* librdfa is Free Software, and can be licensed under any of the
* following three licenses:
*
* 1. GNU Lesser General Public License (LGPL) V2.1 or any
* newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE-* at the top of this software distribution for more
* information regarding the details of each license.
*
* The iri module is used to process IRIs.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "rdfa.h"
#include "rdfa_utils.h"
/**
* Strips the iquery and ifragment part from an IRI. This leaves just the
* scheme and the ihier-part, as defined in RFC 3987. This function will
* copy the input string and return a new string that must be free()'d.
*
* @param iri the IRI that should be stripped of anything after the iquery
* and fragment, if they exist.
*/
char* rdfa_iri_get_base(const char* iri)
{
char* rval = NULL;
const char* eindex = 0;
/* search to see if there is iquery separator */
eindex = strchr(iri, '?');
if(eindex == NULL)
{
/* if there is no iquery separator, check to see if there is an
* ifragment separator */
eindex = strchr(iri, '#');
}
/* check to see if the output string needs to be different from the
* input string */
if(eindex == NULL)
{
/* there was no iquery or ifragment in the input string, so there is
* no need to reformat the string */
rval = rdfa_strdup(iri);
}
else
{
/* the output string should be concatenated */
unsigned int length = (unsigned int)(eindex - iri);
rval = (char*)malloc(length + 1);
rval = strncpy(rval, iri, length);
rval[length] = '\0';
}
return rval;
}
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