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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/decdigit.c |
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'lib/unictype/decdigit.c')
-rw-r--r-- | lib/unictype/decdigit.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/unictype/decdigit.c b/lib/unictype/decdigit.c new file mode 100644 index 0000000..48b0592 --- /dev/null +++ b/lib/unictype/decdigit.c @@ -0,0 +1,49 @@ +/* Values of decimal digit Unicode characters. + Copyright (C) 2002, 2006 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2002. + + 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" + +/* Define u_decdigit table. */ +#include "decdigit.h" + +int +uc_decimal_value (ucs4_t uc) +{ + unsigned int index1 = uc >> decdigit_header_0; + if (index1 < decdigit_header_1) + { + int lookup1 = u_decdigit.level1[index1]; + if (lookup1 >= 0) + { + unsigned int index2 = (uc >> decdigit_header_2) & decdigit_header_3; + int lookup2 = u_decdigit.level2[lookup1 + index2]; + if (lookup2 >= 0) + { + unsigned int index3 = (uc & decdigit_header_4) + lookup2; + /* level3 contains 4-bit values. */ + unsigned int lookup3 = + (u_decdigit.level3[index3>>1] >> ((index3 % 2) * 4)) & 0x0f; + + return (int) lookup3 - 1; + } + } + } + return -1; +} |