xapian-applications/omega/utf8truncate.h

   1 /* utf8truncate.h: truncate a utf-8 string, ideally without splitting words.
   2  *
   3  * Copyright (C) 2007 Olly Betts
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18  */
  19
  20 #ifndef OMEGA_INCLUDED_UTF8TRUNCATE_H
  21 #define OMEGA_INCLUDED_UTF8TRUNCATE_H
  22
  23 #include <string>
  24
  25 /* Truncate utf-8 string value to at most maxlen characters.  If possible,
  26  * split at a word break.  If not, make sure we don't truncate a multibyte
  27  * utf-8 * character sequence.  Return true if value was truncated, false
  28  * otherwise.
  29  */
  30 bool utf8_truncate(std::string & value, std::string::size_type maxlen);
  31
  32 #endif // OMEGA_INCLUDED_UTF8TRUNCATE_H