diff options
Diffstat (limited to 'gnulib/lib/unicase/u-is-invariant.h')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/unicase/u-is-invariant.h | 64 |
2 files changed, 64 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/unicase/u-is-invariant.h b/gnulib/lib/unicase/u-is-invariant.h new file mode 100644 index 0000000..05b749c --- /dev/null +++ b/gnulib/lib/unicase/u-is-invariant.h @@ -0,0 +1,64 @@ +/* Test whether a Unicode string is invariant under a given case mapping. + Copyright (C) 2009-2011 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2009. + + 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/>. */ + +int +FUNC (const UNIT *s, size_t n, + UNIT * (*mapping) (const UNIT *s, size_t n, const char *iso639_language, + uninorm_t nf, + UNIT *resultbuf, size_t *lengthp), + const char *iso639_language, + bool *resultp) +{ + UNIT normsbuf[2048 / sizeof (UNIT)]; + UNIT *norms; + size_t norms_length; + UNIT mappedbuf[2048 / sizeof (UNIT)]; + UNIT *mapped; + size_t mapped_length; + + /* Apply canonical decomposition to S. */ + norms_length = sizeof (normsbuf) / sizeof (UNIT); + norms = U_NORMALIZE (UNINORM_NFD, s, n, normsbuf, &norms_length); + if (norms == NULL) + /* errno is set here. */ + return -1; + + /* Apply mapping. */ + mapped_length = sizeof (mappedbuf) / sizeof (UNIT); + mapped = mapping (norms, norms_length, iso639_language, NULL, + mappedbuf, &mapped_length); + if (mapped == NULL) + { + if (norms != normsbuf) + { + int saved_errno = errno; + free (norms); + errno = saved_errno; + } + return -1; + } + + /* Compare. */ + *resultp = (mapped_length == norms_length + && U_CMP (mapped, norms, norms_length) == 0); + + if (mapped != mappedbuf) + free (mapped); + if (norms != normsbuf) + free (norms); + return 0; +} |