src/helper/gnome-utils.cpp

	gnome-utils.cpp revision 0c6b51649b501e4e378921d918c6a113ab8e2bce
#define __GNOME_UTILS_C__

/*
 * Helpers
 *
 * Author:
 *   Mitsuru Oka
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *
 * Copyright (C) 2002 authors
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#include <string.h>
#include <ctype.h>
#include <glib.h>

#include "gnome-utils.h"

/**
 * gnome_uri_list_extract_uris:
 * @uri_list: an uri-list in the standard format.
 *
 * Returns a GList containing strings allocated with g_malloc
 * that have been splitted from @uri-list.
 */
GList*
gnome_uri_list_extract_uris (const gchar* uri_list)
{
    const gchar *p, *q;
    gchar *retval;
    GList *result = NULL;

    g_return_val_if_fail (uri_list != NULL, NULL);

    p = uri_list;

    /* We don't actually try to validate the URI according to RFC
     * 2396, or even check for allowed characters - we just ignore
     * comments and trim whitespace off the ends.  We also
     * allow LF delimination as well as the specified CRLF.
     */
    while (p) {
        if (*p != '#') {
            while (isspace(*p))
                p++;

            q = p;
            while (*q && (*q != '\n') && (*q != '\r'))
                q++;

            if (q > p) {
                    q--;
                while (q > p && isspace(*q))
                    q--;

                retval = (gchar*)g_malloc (q - p + 2);
                strncpy (retval, p, q - p + 1);
                retval[q - p + 1] = '\0';

                result = g_list_prepend (result, retval);
            }
        }
        p = strchr (p, '\n');
        if (p)
            p++;
    }

    return g_list_reverse (result);
}

/**
 * gnome_uri_list_extract_filenames:
 * @uri_list: an uri-list in the standard format
 *
 * Returns a GList containing strings allocated with g_malloc
 * that contain the filenames in the uri-list.
 *
 * Note that unlike gnome_uri_list_extract_uris() function, this
 * will discard any non-file uri from the result value.
 */
GList*
gnome_uri_list_extract_filenames (const gchar* uri_list)
{
    g_return_val_if_fail (uri_list != NULL, NULL);

    GList *result = gnome_uri_list_extract_uris (uri_list);

    GList *tmp_list = result;
    while (tmp_list) {
        gchar *s = (gchar*)tmp_list->data;

        GList *node = tmp_list;
        tmp_list = tmp_list->next;

        if (!strncmp (s, "file:", 5)) {
            node->data = g_filename_from_uri (s, NULL, NULL);
            /* not sure if this fallback is useful at all */
            if (!node->data) node->data = g_strdup (s+5);
        } else {
            result = g_list_remove_link(result, node);
            g_list_free_1 (node);
        }
        g_free (s);
    }
    return result;
}