path: root/e-util/e-xml-utils.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-xml-utils.c
 * Copyright (C) 2000  Helix Code, Inc.
 * Author: Chris Lahey <clahey@helixcode.com>
 *
 * This library 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <locale.h>
#include <math.h>
#include <gnome-xml/parser.h>
#include <gnome-xml/xmlmemory.h>
#include "e-xml-utils.h"

xmlNode *e_xml_get_child_by_name(xmlNode *parent, const xmlChar *child_name)
{
    xmlNode *child;

    g_return_val_if_fail(parent != NULL, NULL);
    g_return_val_if_fail(child_name != NULL, NULL);
    
    for (child = parent->childs; child; child = child->next) {
        if ( !xmlStrcmp( child->name, child_name ) ) {
            return child;
        }
    }
    return NULL;
}

/* Returns the first child with the name child_name and the "lang"
 * attribute that matches the current LC_MESSAGES, or else, the first
 * child with the name child_name and no "lang" attribute.
 */
xmlNode *
e_xml_get_child_by_name_by_lang(xmlNode *parent, const xmlChar *child_name, const char *lang)
{
    xmlNode *child;
    /* This is the default version of the string. */
    xmlNode *C = NULL;

    g_return_val_if_fail(parent != NULL, NULL);
    g_return_val_if_fail(child_name != NULL, NULL);

    if (lang == NULL)
        lang = setlocale(LC_MESSAGES, NULL);

    for (child = parent->childs; child; child = child->next) {
        if ( !xmlStrcmp( child->name, child_name ) ) {
            char *this_lang = xmlGetProp(child, "lang");
            if ( this_lang == NULL ) {
                C = child;
            }
            else if (!strcmp(this_lang, "lang"))
                return child;
        }
    }
    return C;
}

int
e_xml_get_integer_prop_by_name(xmlNode *parent, const xmlChar *prop_name)
{
    xmlChar *prop;
    int ret_val = 0;

    g_return_val_if_fail (parent != NULL, 0);
    g_return_val_if_fail (prop_name != NULL, 0);

    prop = xmlGetProp (parent, prop_name);
    if (prop) {
        ret_val = atoi (prop);
        xmlFree (prop);
    }
    return ret_val;
}

void
e_xml_set_integer_prop_by_name(xmlNode *parent, const xmlChar *prop_name, int value)
{
    xmlChar *valuestr;

    g_return_if_fail (parent != NULL);
    g_return_if_fail (prop_name != NULL);

    valuestr = g_strdup_printf ("%d", value);
    xmlSetProp (parent, prop_name, valuestr);
    g_free (valuestr);
}

double
e_xml_get_double_prop_by_name(xmlNode *parent, const xmlChar *prop_name)
{
    xmlChar *prop;
    double ret_val = 0;

    g_return_val_if_fail (parent != NULL, 0);
    g_return_val_if_fail (prop_name != NULL, 0);

    prop = xmlGetProp (parent, prop_name);
    if (prop) {
        sscanf (prop, "%lf", &ret_val);
        xmlFree (prop);
    }
    return ret_val;
}

void
e_xml_set_double_prop_by_name(xmlNode *parent, const xmlChar *prop_name, double value)
{
    xmlChar *valuestr;

    g_return_if_fail (parent != NULL);
    g_return_if_fail (prop_name != NULL);

    if (fabs (value) < 1e9 && fabs (value) > 1e-5)
        valuestr = g_strdup_printf ("%f", value);
    else
        valuestr = g_strdup_printf ("%.*g", DBL_DIG, value);
    xmlSetProp (parent, prop_name, valuestr);
    g_free (valuestr);
}

char *
e_xml_get_string_prop_by_name(xmlNode *parent, const xmlChar *prop_name)
{
    xmlChar *prop;
    char *ret_val = NULL;

    g_return_val_if_fail (parent != NULL, 0);
    g_return_val_if_fail (prop_name != NULL, 0);

    prop = xmlGetProp (parent, prop_name);
    if (prop) {
        ret_val = g_strdup (prop);
        xmlFree (prop);
    }
    return ret_val;
}

void
e_xml_set_string_prop_by_name(xmlNode *parent, const xmlChar *prop_name, char *value)
{
    xmlChar *valuestr;

    g_return_if_fail (parent != NULL);
    g_return_if_fail (prop_name != NULL);

    valuestr = g_strdup (value);
    xmlSetProp (parent, prop_name, valuestr);
    g_free (valuestr);
}