root/maint/gnulib/lib/unictype/combiningclass_name.c

/* */

DEFINITIONS

1. uc_combining_class_name

   1 /* Canonical combining classes of Unicode characters.
   2    Copyright (C) 2002, 2006-2007, 2011-2021 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2011.
   4 
   5    This file is free software.
   6    It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
   7    You can redistribute it and/or modify it under either
   8      - the terms of the GNU Lesser General Public License as published
   9        by the Free Software Foundation; either version 3, or (at your
  10        option) any later version, or
  11      - the terms of the GNU General Public License as published by the
  12        Free Software Foundation; either version 2, or (at your option)
  13        any later version, or
  14      - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
  15 
  16    This file is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19    Lesser General Public License and the GNU General Public License
  20    for more details.
  21 
  22    You should have received a copy of the GNU Lesser General Public
  23    License and of the GNU General Public License along with this
  24    program.  If not, see <https://www.gnu.org/licenses/>.  */
  25 
  26 #include <config.h>
  27 
  28 /* Specification.  */
  29 #include "unictype.h"
  30 
  31 #include <stdlib.h>
  32 
  33 static const signed char u_combining_class_index_part1[10] =
  34 {
  35    0, /* Not Reordered */
  36    1, /* Overlay */
  37   -1,
  38   -1,
  39   -1,
  40   -1,
  41   -1,
  42    2, /* Nukta */
  43    3, /* Kana Voicing */
  44    4  /* Virama */
  45 };
  46 static const signed char u_combining_class_index_part2[241 - 200] =
  47 {
  48    5, /* Attached Below Left */
  49   -1,
  50    6, /* Attached Below */
  51   -1,
  52   -1,
  53   -1,
  54   -1,
  55   -1,
  56   -1,
  57   -1,
  58   -1,
  59   -1,
  60   -1,
  61   -1,
  62    7, /* Attached Above */
  63   -1,
  64    8, /* Attached Above Right */
  65   -1,
  66    9, /* Below Left */
  67   -1,
  68   10, /* Below */
  69   -1,
  70   11, /* Below Right */
  71   -1,
  72   12, /* Left */
  73   -1,
  74   13, /* Right */
  75   -1,
  76   14, /* Above Left */
  77   -1,
  78   15, /* Above */
  79   -1,
  80   16, /* Above Right */
  81   17, /* Double Below */
  82   18, /* Double Above */
  83   -1,
  84   -1,
  85   -1,
  86   -1,
  87   -1,
  88   19  /* Iota Subscript */
  89 };
  90 
  91 static const char u_combining_class_name[20][5] =
  92 {
  93   "NR",   /* Not Reordered */
  94   "OV",   /* Overlay */
  95   "NK",   /* Nukta */
  96   "KV",   /* Kana Voicing */
  97   "VR",   /* Virama */
  98   "ATBL", /* Attached Below Left */
  99   "ATB",  /* Attached Below */
 100   "ATA",  /* Attached Above */
 101   "ATAR", /* Attached Above Right */
 102   "BL",   /* Below Left */
 103   "B",    /* Below */
 104   "BR",   /* Below Right */
 105   "L",    /* Left */
 106   "R",    /* Right */
 107   "AL",   /* Above Left */
 108   "A",    /* Above */
 109   "AR",   /* Above Right */
 110   "DB",   /* Double Below */
 111   "DA",   /* Double Above */
 112   "IS"    /* Iota Subscript */
 113 };
 114 
 115 const char *
 116 uc_combining_class_name (int ccc)
     /*  */
 117 {
 118   if (ccc >= 0)
 119     {
 120       int index;
 121 
 122       if (ccc < 10)
 123         index = u_combining_class_index_part1[ccc];
 124       else if (ccc >= 200 && ccc < 241)
 125         index = u_combining_class_index_part2[ccc - 200];
 126       else
 127         return NULL;
 128 
 129       if (index >= 0)
 130         {
 131           if (index < sizeof (u_combining_class_name) / sizeof (u_combining_class_name[0]))
 132             return u_combining_class_name[index];
 133           else
 134             abort ();
 135         }
 136     }
 137   return NULL;
 138 }

/* */