lib/wind/gen-errorlist.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 import rfc4518
  44 import stringprep
  45
  46 if len(sys.argv) != 3:
  47     print "usage: %s rfc3454.txt out-dir" % sys.argv[0]
  48     sys.exit(1)
  49
  50 tables = rfc3454.read(sys.argv[1])
  51 t2 = rfc4518.read()
  52
  53 for x in t2.iterkeys():
  54     tables[x] = t2[x]
  55
  56 error_list = stringprep.get_errorlist()
  57
  58 errorlist_h = generate.Header('%s/errorlist_table.h' % sys.argv[2])
  59
  60 errorlist_c = generate.Implementation('%s/errorlist_table.c' % sys.argv[2])
  61
  62 errorlist_h.file.write(
  63 '''
  64 #include "windlocl.h"
  65
  66 struct error_entry {
  67   uint32_t start;
  68   unsigned len;
  69   wind_profile_flags flags;
  70 };
  71
  72 extern const struct error_entry _wind_errorlist_table[];
  73
  74 extern const size_t _wind_errorlist_table_size;
  75
  76 ''')
  77
  78 errorlist_c.file.write(
  79 '''
  80 #include "errorlist_table.h"
  81
  82 const struct error_entry _wind_errorlist_table[] = {
  83 ''')
  84
  85 trans=[]
  86
  87 for t in error_list.iterkeys():
  88     for l in tables[t]:
  89         m = re.search('^ *([0-9A-F]+)-([0-9A-F]+); *(.*) *$', l)
  90         if m:
  91             start = int(m.group(1), 0x10)
  92             end   = int(m.group(2), 0x10)
  93             desc  = m.group(3)
  94             trans.append([start, end - start + 1, desc, [t]])
  95         else:
  96             m = re.search('^ *([0-9A-F]+); *(.*) *$', l)
  97             if m:
  98                 trans.append([int(m.group(1), 0x10), 1, m.group(2), [t]])
  99
 100 trans = stringprep.sort_merge_trans(trans)
 101
 102 for x in trans:
 103     (start, length, description, tables) = x
 104     symbols = stringprep.symbols(error_list, tables)
 105     if len(symbols) == 0:
 106         print "no symbol for %s" % description
 107         sys.exit(1)
 108     errorlist_c.file.write("  {0x%x, 0x%x, %s}, /* %s: %s */\n"
 109                 % (start, length, symbols, ",".join(tables), description))
 110
 111 errorlist_c.file.write(
 112 '''};
 113
 114 ''')
 115
 116 errorlist_c.file.write(
 117     "const size_t _wind_errorlist_table_size = %u;\n" % len(trans))
 118
 119 errorlist_h.close()
 120 errorlist_c.close()