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/* utf8.c - Operations on UTF-8 strings.
*
* Copyright (C) 2002 Timo Sirainen
*
* Based on GLib code by
*
* Copyright (C) 1999 Tom Tromey
* Copyright (C) 2000 Red Hat, Inc.
*
* This library 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.
*
* This library 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 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 "utf8.h"
#include "module.h"
#include "wcwidth.c"
/* Provide is_utf8(): */
#include "recode.h"
int string_advance(char const **str, gboolean utf8)
{
if (utf8) {
gunichar c;
c = g_utf8_get_char(*str);
*str = g_utf8_next_char(*str);
return unichar_isprint(c) ? mk_wcwidth(c) : 1;
} else {
*str += 1;
return 1;
}
}
int string_policy(const char *str)
{
if (is_utf8()) {
if (!str || g_utf8_validate(str, -1, NULL)) {
/* No string provided or valid UTF-8 string: treat as UTF-8: */
return TREAT_STRING_AS_UTF8;
}
}
return TREAT_STRING_AS_BYTES;
}
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