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g_utf8_get_char_validated/g_unichar_to_utf8. git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@4893 dbcabf3a-b0e7-0310-adc4-f8d773084564
90 lines
2 KiB
C
90 lines
2 KiB
C
/* utf8.c - Operations on UTF-8 strings.
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*
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* Copyright (C) 2002 Timo Sirainen
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*
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* Based on GLib code by
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*
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* Copyright (C) 1999 Tom Tromey
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* Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "module.h"
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int strlen_utf8(const char *str)
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{
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const unsigned char *p = (const unsigned char *) str;
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int len;
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unichar chr_r;
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len = 0;
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while (*p != '\0') {
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chr_r = g_utf8_get_char_validated(p, -1);
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if (chr_r & 0x80000000)
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break;
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len++;
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p = g_utf8_next_char(p);
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}
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return len;
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}
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void utf8_to_utf16(const char *str, unichar *out)
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{
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const unsigned char *p = (const unsigned char *) str;
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unichar result;
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while (*p != '\0') {
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result = g_utf8_get_char_validated(p, -1);
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if (result & 0x80000000)
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break;
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p = g_utf8_next_char(p);
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*out++ = result;
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}
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*out = '\0';
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}
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void utf16_to_utf8(const unichar *str, char *out)
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{
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int len;
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while (*str != '\0') {
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len = g_unichar_to_utf8(*str, out);
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out += len;
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str++;
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}
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*out = '\0';
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}
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void utf16_to_utf8_with_pos(const unichar *str, int spos, char *out, int *opos)
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{
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int len;
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const unichar *sstart = str;
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char *ostart = out;
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*opos = 0;
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while (*str != '\0') {
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len = g_unichar_to_utf8(*str, out);
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out += len;
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str++;
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if(str - sstart == spos)
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*opos = out - ostart;
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}
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*out = '\0';
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}
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