1 files changed, 116 insertions, 0 deletions
diff --git a/src/charset.c b/src/charset.c
new file mode 100644
index 000000000..41269f38b
--- /dev/null
+++ b/src/charset.c
@@ -0,0 +1,116 @@
+/*
+ * (c) 2006 by Kalle Wallin <kaw@linux.se>
+ * Copyright (C) 2008 Max Kellermann <max@duempel.org>
+ *
+ * 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 "charset.h"
+#include "i18n.h"
+
+#include <assert.h>
+#include <string.h>
+#include <glib.h>
+
+extern void screen_status_printf(const char *format, ...);
+
+static bool noconvert = true;
+
+void
+charset_init(bool disable)
+{
+	noconvert = disable;
+}
+
+size_t
+my_strlen(const char *str)
+{
+	assert(str != NULL);
+
+	if (g_utf8_validate(str, -1, NULL)) {
+		size_t len = g_utf8_strlen(str, -1);
+		size_t width = 0;
+		gunichar c;
+
+		while (len--) {
+			c = g_utf8_get_char(str);
+			width += g_unichar_iswide(c) ? 2 : 1;
+			str += g_unichar_to_utf8(c, NULL);
+		}
+
+		return width;
+	} else
+		return strlen(str);
+}
+
+char *
+utf8_to_locale(const char *utf8str)
+{
+	gchar *str;
+	gsize rb, wb;
+	GError *error;
+
+	assert(utf8str != NULL);
+
+	if (noconvert)
+		return g_strdup(utf8str);
+
+	rb = 0; /* bytes read */
+	wb = 0; /* bytes written */
+	error = NULL;
+	str = g_locale_from_utf8(utf8str,
+				 strlen(utf8str),
+				 &wb, &rb,
+				 &error);
+	if (error) {
+		const char *charset;
+
+		g_get_charset(&charset);
+		screen_status_printf(_("Error: Unable to convert characters to %s"),
+				     charset);
+		g_error_free(error);
+		return g_strdup(utf8str);
+	}
+
+	return str;
+}
+
+char *
+locale_to_utf8(const char *localestr)
+{
+	gchar *str;
+	gsize rb, wb;
+	GError *error;
+
+	assert(localestr != NULL);
+
+	if (noconvert)
+		return g_strdup(localestr);
+
+	rb = 0; /* bytes read */
+	wb = 0; /* bytes written */
+	error = NULL;
+	str = g_locale_to_utf8(localestr,
+			       strlen(localestr),
+			       &wb, &rb,
+			       &error);
+	if (error) {
+		screen_status_printf(_("Error: Unable to convert characters to UTF-8"));
+		g_error_free(error);
+		return g_strdup(localestr);
+	}
+
+	return str;
+}