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/*
* Copyright (C) 2009, 2010 Jens Georg <mail@jensge.org>.
* Copyright (C) 2013 Intel Corporation.
*
* This file is part of Rygel.
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Rygel 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include "rygel-media-export-string-utils.h"
gchar *
rygel_media_export_string_replace (const gchar *self,
const gchar *old,
const gchar *replacement,
GError **error) {
gchar* result;
gchar *escaped;
GError *inner_error;
GRegex *regex;
g_return_val_if_fail (self != NULL, NULL);
g_return_val_if_fail (old != NULL, NULL);
g_return_val_if_fail (replacement != NULL, NULL);
result = NULL;
escaped = g_regex_escape_string (old, -1);
inner_error = NULL;
regex = g_regex_new (escaped, 0, 0, &inner_error);
g_free (escaped);
if (inner_error) {
g_propagate_error (error, inner_error);
} else {
result = g_regex_replace_literal (regex, self, -1, 0, replacement, 0, &inner_error);
if (inner_error) {
g_propagate_error (error, inner_error);
}
g_regex_unref (regex);
}
return result;
}
gchar *
rygel_media_export_string_slice (const gchar *self,
glong start,
glong end) {
glong string_length;
gboolean outside;
g_return_val_if_fail (self != NULL, NULL);
string_length = strlen (self);
if (start < 0) {
start += string_length;
}
if (end < 0) {
end += string_length;
}
if (start >= 0) {
outside = (start > string_length);
} else {
outside = TRUE;
}
if (outside) {
g_warning ("Start offset (%ld) is outside string (%s).", start, self);
return NULL;
}
if (end >= 0) {
outside = (end > string_length);
} else {
outside = TRUE;
}
if (outside) {
g_warning ("End offset (%ld) is outside string (%s).", end, self);
return NULL;
}
if (start > end) {
g_warning ("Start offset (%ld) is later than end offset (%ld).", start, end);
return NULL;
}
return g_strndup (self + start, (gsize) (end - start));
}
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