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value_pair.c

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/*
 * Yattm 
 *
 * Copyright (C) 1999, Torrey Searle <tsearle@uci.edu>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#include "intl.h"
#include <string.h>
#include <stdlib.h>
#include "value_pair.h"
#include "util.h"

char * value_pair_get_value( GList * pairs, char * key )
{
    GList * node;
    for( node = pairs; node; node=node->next)
    {
        value_pair * vp = node->data;
        if(!strcasecmp(key, vp->key))
            return unescape_string(vp->value);
    }
    return NULL;
}

void value_pair_free( GList * pairs )
{
    GList * node;
    for( node = pairs; node; node = node->next )
    {
        g_free(node->data);
    }
    g_list_free(pairs);
}

void value_pair_print_values( GList * pairs, FILE * file, int indent )
{
    GList * node;
    int i;
    
    for( node = pairs; node; node = node->next )
    {
        value_pair * vp = node->data;

        for( i = 0; i < indent; i++ )
        {
            fprintf( file, "\t" );
        }

        fprintf(file, "%s=\"%s\"\n", vp->key, vp->value);
    }
}

GList * value_pair_add(GList * list, char * key, char * value)
{
    char * tmp = escape_string(value);
    value_pair * vp = g_new0(value_pair, 1);
    strcpy(vp->key, key);
    strcpy(vp->value,tmp);
    g_free(tmp);
    return g_list_append(list, vp);
}

GList * value_pair_remove( GList *pairs, char *key )
{
    GList * node, *new_list;
    void *ptr=NULL;
    for( node = pairs; node; node=node->next)
    {
        value_pair * vp = node->data;
        if(vp && !strcasecmp(key, vp->key)) {
            ptr=node->data;
            new_list= g_list_remove(pairs, node->data);
            g_free(ptr);
            return(new_list);
        }
    }
    return pairs;
}

GList * value_pair_update(GList * pairs, GList * new_list)
{

    GList * node;
    for( node = new_list; node; node=node->next)
    {
        value_pair * vp = node->data;
        pairs = value_pair_remove(pairs, vp->key);
        pairs = value_pair_add(pairs, vp->key, vp->value);
    }
    return(pairs);
}

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