code.delx.au - gnu-emacs/blob - admin/unidata/biditype.awk

   1 # Generate data for filling bidi_type_table, see src/bidi.c:bidi_initialize.
   2
   3 # Copyright (C) 2010-2011  Free Software Foundation, Inc.
   4
   5 # This file is part of GNU Emacs.
   6
   7 # GNU Emacs is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # GNU Emacs is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # Written by Eli Zaretskii <eliz@gnu.org>
  21
  22 function trtype(type)
  23 {
  24     # Types are listed in the order of decresing use in UnicodeData.txt:
  25     if (type == "ON")
  26         return "NEUTRAL_ON";
  27     else if (type == "NSM")
  28         return "WEAK_NSM";
  29     else if (type == "AL")
  30         return "STRONG_AL";
  31     else if (type == "R")
  32         return "STRONG_R";
  33     else if (type == "BN")
  34         return "WEAK_BN";
  35     else if (type == "EN")
  36         return "WEAK_EN";
  37     else if (type == "ET")
  38         return "WEAK_ET";
  39     else if (type == "AN")
  40         return "WEAK_AN";
  41     else if (type == "WS")
  42         return "NEUTRAL_WS";
  43     else if (type == "CS")
  44         return "WEAK_CS";
  45     else if (type == "ES")
  46         return "WEAK_ES";
  47     else if (type == "B")
  48         return "NEUTRAL_B";
  49     else if (type == "S")
  50         return "NEUTRAL_S";
  51     else if (type == "LRE" || type == "RLE" || type == "LRO" || type == "RLO" || type == "PDF")
  52         return type;
  53     else if (type == "L")
  54         return "STRONG_L";
  55     else
  56     {
  57         printf "Unknown type: %s\n", type > "/dev/stderr";
  58         exit 1;
  59     }
  60 }
  61
  62 BEGIN {
  63      otype = "";
  64      startcode = "";
  65      endcode = "";
  66      printf "  struct {\n    int from, to;\n    bidi_type_t type;\n  } bidi_type[] = {\n";
  67      first = 1;
  68  }
  69
  70  {   code = $1;
  71      ntype = $5;
  72      if (ntype != otype)
  73      {
  74          # Don't output data for L, as that's the default value, see bidi.c.
  75          if (otype != "L" && startcode != "")
  76          {
  77              if (!first)
  78                  printf ",\n";
  79              else
  80                  first = 0;
  81              printf "\t{ 0x%s, 0x%s, %s }", startcode, endcode, trtype(otype);
  82          }
  83          otype = ntype;
  84          startcode = code;
  85          endcode = code;
  86      }
  87      else
  88          endcode = code;
  89  }
  90
  91 END {
  92      printf " };\n";
  93  }