gen-stringprep-tables.pl

   1 #! /usr/bin/perl -w
   2
   3 # Copyright (C) 2002 Simon Josefsson
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2, or (at your option)
   8 # any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  18 # 02111-1307, USA.
  19
  20 # I consider the output of this program to be unrestricted.  Use it as
  21 # you will.
  22
  23 use strict;
  24
  25 my ($tab) = 59;
  26 my ($intable) = 0;
  27 my ($tablename);
  28 my ($varname);
  29 my ($starheader, $header);
  30 my ($profile) = "generic";
  31 my ($filename) = "stringprep_${profile}.c";
  32 my ($line, $start, $end, @map);
  33
  34 open(FH, ">$filename") or die "cannot open $filename for writing";
  35
  36 print FH "#include <stringprep.h>\n";
  37
  38 while(<>) {
  39     $line = $_;
  40
  41     die "already in table" if $intable && m,^----- Start Table (.*) -----,;
  42     die "not in table" if !$intable && m,^----- End Table (.*) -----,;
  43
  44     if ($intable && m,^----- End Table (.*) -----,) {
  45         die "table error" unless $1 eq $tablename ||
  46             ($1 eq "C.1.2" && $tablename eq "C.1.1"); # Typo in draft
  47         $intable = 0;
  48         print FH "  { 0 },\n";
  49         print FH "};\n\n";
  50     }
  51
  52     if (m,^[A-Z],) {
  53         $header = $line;
  54     } elsif (!m,^-,) {
  55         $header .= $line;
  56     }
  57
  58     next unless ($intable || m,^----- Start Table (.*) -----,);
  59
  60     if ($intable) {
  61         $_ = $line;
  62         chop $line;
  63
  64         die "regexp failed on line: $line" unless
  65             m,^([0-9A-F]+)(-([0-9A-F]+))?(; ([0-9A-F]+)( ([0-9A-F]+))?( ([0-9A-F]+))?( ([0-9A-F]+))?;)?,;
  66
  67         die "too many mapping targets on line: $line" if $12;
  68
  69         $start = $1;
  70         $end = $3;
  71         $map[0] = $5;
  72         $map[1] = $7;
  73         $map[2] = $9;
  74         $map[3] = $11;
  75
  76         die "tables tried to map a range" if $end && $map[0];
  77
  78         if ($map[3]) {
  79             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s, 0x%06s, 0x%06s }},\n",
  80             $start, $map[0], $tab-length($line)-13, " ", $line,
  81             $map[1], $map[2], $map[3];
  82         } elsif ($map[2]) {
  83             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s, 0x%06s }},\n",
  84             $start, $map[0], $tab-length($line)-14, " ", $line,
  85             $map[1], $map[2];
  86         } elsif ($map[1]) {
  87             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s }},\n",
  88             $start, $map[0], $tab-length($line)-14, " ", $line,
  89             $map[1];
  90         } elsif ($map[0]) {
  91             printf FH "  { 0x%06s, 0, { 0x%06s }},%*s/* %s */\n",
  92             $start, $map[0], $tab-length($line)-17, " ",  $line;
  93         } elsif ($end) {
  94             printf FH "  { 0x%06s, 0x%06s },%*s/* %s */\n",
  95             $start, $end, $tab-length($line)-11, " ",  $line;
  96         } else {
  97             printf FH "  { 0x%06s           },%*s/* %s */\n",
  98             $start, $tab-length($line)-11, " ",  $line;
  99         }
 100     } else {
 101         $intable = 1 if !$intable;
 102         $tablename = $1;
 103
 104         ($varname = $tablename) =~ tr/./_/;
 105         $header =~ s/\n/\n * /s;
 106
 107         print FH "\n/*\n * $header */\n\n";
 108         print FH "Stringprep_table_element stringprep_${profile}_${varname}\[\] = {\n";
 109     }
 110 }
 111
 112 close FH or die "cannot close $filename";