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/*
* gitg-convert.c
* This file is part of gitg - git repository viewer
*
* Copyright (C) 2009 - Jesse van den Kieboom
*
* 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 "gitg-convert.h"
#include <string.h>
static void
utf8_validate_fallback (gchar *text,
gssize size)
{
gchar const *end;
while (!g_utf8_validate (text, size, &end))
{
*((gchar *)end) = '?';
}
}
static gchar *
convert_fallback (gchar const *text,
gssize size,
gchar const *fallback)
{
gchar *res;
gsize read, written;
GString *str = g_string_new ("");
while ((res = g_convert(text,
size,
"UTF-8",
"ASCII",
&read,
&written,
NULL)) == NULL)
{
res = g_convert (text, read, "UTF-8", "ASCII", NULL, NULL, NULL);
str = g_string_append (str, res);
str = g_string_append (str, fallback);
text = text + read + 1;
size = size - read;
}
str = g_string_append (str, res);
g_free (res);
utf8_validate_fallback (str->str, str->len);
return g_string_free (str, FALSE);
}
gchar *
gitg_convert_utf8 (gchar const *str, gssize size)
{
static gchar *encodings[] = {
"ISO-8859-15",
"ASCII"
};
if (str == NULL)
{
return NULL;
}
if (size == -1)
{
size = strlen (str);
}
if (g_utf8_validate (str, size, NULL))
{
return g_strndup (str, size);
}
int i;
for (i = 0; i < sizeof (encodings) / sizeof (gchar *); ++i)
{
gsize read;
gsize written;
gchar *ret = g_convert (str,
size,
"UTF-8",
encodings[i],
&read,
&written,
NULL);
if (ret && read == size)
{
utf8_validate_fallback (ret, written);
return ret;
}
g_free (ret);
}
return convert_fallback (str, size, "?");
}
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