diff options
Diffstat (limited to 'readline/mbutil.c')
| -rw-r--r-- | readline/mbutil.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/readline/mbutil.c b/readline/mbutil.c index 17dde53..eeb7e55 100644 --- a/readline/mbutil.c +++ b/readline/mbutil.c @@ -1,24 +1,24 @@ /* mbutil.c -- readline multibyte character utility functions */ -/* Copyright (C) 2001-2005 Free Software Foundation, Inc. +/* Copyright (C) 2001-2009 Free Software Foundation, Inc. - This file is part of the GNU Readline Library, a library for - reading lines of text with interactive input and history editing. + This file is part of the GNU Readline Library (Readline), a library + for reading lines of text with interactive input and history editing. - The GNU Readline Library 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, or + Readline 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 3 of the License, or (at your option) any later version. - The GNU Readline 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 + Readline 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. - The GNU General Public License is often shipped with GNU software, and - is generally kept in a file called COPYING or LICENSE. If you do not - have a copy of the license, write to the Free Software Foundation, - 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + You should have received a copy of the GNU General Public License + along with Readline. If not, see <http://www.gnu.org/licenses/>. +*/ + #define READLINE_LIBRARY #if defined (HAVE_CONFIG_H) @@ -77,7 +77,7 @@ _rl_find_next_mbchar_internal (string, seed, count, find_non_zero) char *string; int seed, count, find_non_zero; { - size_t tmp; + size_t tmp, len; mbstate_t ps; int point; wchar_t wc; @@ -91,17 +91,21 @@ _rl_find_next_mbchar_internal (string, seed, count, find_non_zero) return seed; point = seed + _rl_adjust_point (string, seed, &ps); - /* if this is true, means that seed was not pointed character - started byte. So correct the point and consume count */ + /* if this is true, means that seed was not pointing to a byte indicating + the beginning of a multibyte character. Correct the point and consume + one char. */ if (seed < point) count--; while (count > 0) { - tmp = mbrtowc (&wc, string+point, strlen(string + point), &ps); + len = strlen (string + point); + if (len == 0) + break; + tmp = mbrtowc (&wc, string+point, len, &ps); if (MB_INVALIDCH ((size_t)tmp)) { - /* invalid bytes. asume a byte represents a character */ + /* invalid bytes. assume a byte represents a character */ point++; count--; /* reset states. */ @@ -128,12 +132,10 @@ _rl_find_next_mbchar_internal (string, seed, count, find_non_zero) if (find_non_zero) { tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps); - while (tmp > 0 && wcwidth (wc) == 0) + while (MB_NULLWCH (tmp) == 0 && MB_INVALIDCH (tmp) == 0 && wcwidth (wc) == 0) { point += tmp; tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps); - if (MB_NULLWCH (tmp) || MB_INVALIDCH (tmp)) - break; } } |