kc3-lang/gnulib/lib/unigbrk/uc-gbrk-prop.c

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• Hash : 281b825e
  Author :
  Date : 2018-01-01T00:57:25
  

  maint: Run 'make update-copyright'
  

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• lib/unigbrk/uc-gbrk-prop.c

• /* Grapheme cluster break property function.
     Copyright (C) 2010-2018 Free Software Foundation, Inc.
     Written by Ben Pfaff <blp@cs.stanford.edu>, 2010.
  
     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 <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include "unigbrk.h"
  
  #include "gbrkprop.h"
  
  int
  uc_graphemeclusterbreak_property (ucs4_t uc)
  {
    unsigned int index1 = uc >> gbrkprop_header_0;
    if (index1 < gbrkprop_header_1)
      {
        int lookup1 = unigbrkprop.level1[index1];
        if (lookup1 >= 0)
          {
            unsigned int index2 = (uc >> gbrkprop_header_2) & gbrkprop_header_3;
            int lookup2 = unigbrkprop.level2[lookup1 + index2];
            if (lookup2 >= 0)
              {
                unsigned int index3 = uc & gbrkprop_header_4;
                return unigbrkprop.level3[lookup2 + index3];
              }
          }
      }
    return GBP_OTHER;
  }
  

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