diff options
Diffstat (limited to 'gnulib/lib/unistr/u8-mbsnlen.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/unistr/u8-mbsnlen.c | 44 |
2 files changed, 44 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/unistr/u8-mbsnlen.c b/gnulib/lib/unistr/u8-mbsnlen.c new file mode 100644 index 0000000..4d086a4 --- /dev/null +++ b/gnulib/lib/unistr/u8-mbsnlen.c @@ -0,0 +1,44 @@ +/* Count characters in UTF-8 string. + Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2007. + + This program 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 3 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include "unistr.h" + +size_t +u8_mbsnlen (const uint8_t *s, size_t n) +{ + size_t characters; + + characters = 0; + while (n > 0) + { + ucs4_t uc; + int count = u8_mbtoucr (&uc, s, n); + characters++; + if (count == -2) + break; + if (count < 0) + count = u8_mbtouc (&uc, s, n); + else if (count == 0) + count = 1; + s += count; + n -= count; + } + return characters; +} |