lib/wind/gen-bidi.py

   1 #!/usr/local/bin/python
   2 # -*- coding: iso-8859-1 -*-
   3
   4 # $Id$
   5
   6 # Copyright (c) 2004 Kungliga Tekniska Högskolan
   7 # (Royal Institute of Technology, Stockholm, Sweden).
   8 # All rights reserved.
   9 #
  10 # Redistribution and use in source and binary forms, with or without
  11 # modification, are permitted provided that the following conditions
  12 # are met:
  13 #
  14 # 1. Redistributions of source code must retain the above copyright
  15 #    notice, this list of conditions and the following disclaimer.
  16 #
  17 # 2. Redistributions in binary form must reproduce the above copyright
  18 #    notice, this list of conditions and the following disclaimer in the
  19 #    documentation and/or other materials provided with the distribution.
  20 #
  21 # 3. Neither the name of the Institute nor the names of its contributors
  22 #    may be used to endorse or promote products derived from this software
  23 #    without specific prior written permission.
  24 #
  25 # THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  26 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28 # ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  29 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35 # SUCH DAMAGE.
  36
  37 import re
  38 import string
  39 import sys
  40
  41 import generate
  42 import rfc3454
  43
  44 if len(sys.argv) != 3:
  45     print "usage: %s rfc3454.txt outdir" % sys.argv[0]
  46     sys.exit(1)
  47
  48 tables = rfc3454.read(sys.argv[1])
  49
  50 bidi_h = generate.Header('%s/bidi_table.h' % sys.argv[2])
  51
  52 bidi_c = generate.Implementation('%s/bidi_table.c' % sys.argv[2])
  53
  54 bidi_h.file.write(
  55 '''
  56 #include <krb5-types.h>
  57
  58 struct range_entry {
  59   uint32_t start;
  60   unsigned len;
  61 };
  62
  63 extern const struct range_entry _wind_ral_table[];
  64 extern const struct range_entry _wind_l_table[];
  65
  66 extern const size_t _wind_ral_table_size;
  67 extern const size_t _wind_l_table_size;
  68
  69 ''')
  70
  71 bidi_c.file.write(
  72 '''
  73 #include "bidi_table.h"
  74
  75 ''')
  76
  77 def printTable(file, table, variable):
  78     """print table to file named as variable"""
  79     file.write("const struct range_entry %s[] = {\n" % variable)
  80     count = 0
  81     for l in tables[table]:
  82         m = re.search('^ *([0-9A-F]+)-([0-9A-F]+) *$', l)
  83         if m:
  84             start = int(m.group(1), 0x10)
  85             end   = int(m.group(2), 0x10)
  86             file.write("  {0x%x, 0x%x},\n" % (start, end - start + 1))
  87             count += 1
  88         else:
  89             m = re.search('^ *([0-9A-F]+) *$', l)
  90             if m:
  91                 v = int(m.group(1), 0x10)
  92                 file.write("  {0x%x, 1},\n" % v)
  93                 count += 1
  94     file.write("};\n\n")
  95     file.write("const size_t %s_size = %u;\n\n" % (variable, count))
  96
  97 printTable(bidi_c.file, 'D.1', '_wind_ral_table')
  98 printTable(bidi_c.file, 'D.2', '_wind_l_table')
  99
 100 bidi_h.close()
 101 bidi_c.close()