diff options
author | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
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committer | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
commit | fa095a4504cbe668e4244547e2c141597bea4ecf (patch) | |
tree | 06135820a286ffec47804e75fbf8a147e92acd2e /lib/unictype/scripts.c |
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'lib/unictype/scripts.c')
-rw-r--r-- | lib/unictype/scripts.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/unictype/scripts.c b/lib/unictype/scripts.c new file mode 100644 index 0000000..092009d --- /dev/null +++ b/lib/unictype/scripts.c @@ -0,0 +1,75 @@ +/* Scripts of Unicode characters. + Copyright (C) 2007 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 "unictype.h" + +#include <string.h> + +#include "scripts.h" +#include "unictype/scripts_byname.h" + +const uc_script_t * +uc_script (ucs4_t uc) +{ + unsigned int index1 = uc >> script_header_0; + if (index1 < script_header_1) + { + int lookup1 = u_script.level1[index1]; + if (lookup1 >= 0) + { + unsigned int index2 = (uc >> script_header_2) & script_header_3; + int lookup2 = u_script.level2[lookup1 + index2]; + if (lookup2 >= 0) + { + unsigned int index3 = (uc & script_header_4); + unsigned char lookup3 = u_script.level3[lookup2 + index3]; + + if (lookup3 != 0xff) + return &scripts[lookup3]; + } + } + } + return NULL; +} + +const uc_script_t * +uc_script_byname (const char *script_name) +{ + const struct named_script *found; + + found = uc_script_lookup (script_name, strlen (script_name)); + if (found != NULL) + return &scripts[found->index]; + else + return NULL; +} + +bool +uc_is_script (ucs4_t uc, const uc_script_t *script) +{ + return uc_script (uc) == script; +} + +void +uc_all_scripts (const uc_script_t **scriptsp, size_t *countp) +{ + *scriptsp = scripts; + *countp = sizeof (scripts) / sizeof (scripts[0]); +} |