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, $header);
  30 my ($prefix) = "stringprep";
  31 my ($profile) = "generic";
  32 my ($filename) = "${prefix}_${profile}.c";
  33 my ($line, $start, $end, @map);
  34
  35 open(FH, ">$filename") or die "cannot open $filename for writing";
  36
  37 print FH "#include <stringprep.h>\n";
  38
  39 while(<>) {
  40     $line = $_;
  41
  42     die "already in table" if $intable && m,^----- Start Table (.*) -----,;
  43     die "not in table" if !$intable && m,^----- End Table (.*) -----,;
  44
  45     if ($intable && m,^----- End Table (.*) -----,) {
  46         die "table error" unless $1 eq $tablename ||
  47             ($1 eq "C.1.2" && $tablename eq "C.1.1"); # Typo in draft
  48         $intable = 0;
  49         print FH "  { 0 },\n";
  50         print FH "};\n\n";
  51     }
  52
  53     if (m,^[A-Z],) {
  54         $header = $line;
  55     } elsif (!m,^-,) {
  56         $header .= $line;
  57     }
  58
  59     next unless ($intable || m,^----- Start Table (.*) -----,);
  60
  61     if ($intable) {
  62         $_ = $line;
  63         chop $line;
  64
  65         die "regexp failed on line: $line" unless
  66             m,^([0-9A-F]+)(-([0-9A-F]+))?(; ([0-9A-F]+)( ([0-9A-F]+))?( ([0-9A-F]+))?( ([0-9A-F]+))?;)?,;
  67
  68         die "too many mapping targets on line: $line" if $12;
  69
  70         $start = $1;
  71         $end = $3;
  72         $map[0] = $5;
  73         $map[1] = $7;
  74         $map[2] = $9;
  75         $map[3] = $11;
  76
  77         die "tables tried to map a range" if $end && $map[0];
  78
  79         if ($map[3]) {
  80             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s, 0x%06s, 0x%06s }},\n",
  81             $start, $map[0], $tab-length($line)-13, " ", $line,
  82             $map[1], $map[2], $map[3];
  83         } elsif ($map[2]) {
  84             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s, 0x%06s }},\n",
  85             $start, $map[0], $tab-length($line)-14, " ", $line,
  86             $map[1], $map[2];
  87         } elsif ($map[1]) {
  88             printf FH "  { 0x%06s, 0, { 0x%06s,%*s/* %s */\n                   0x%06s }},\n",
  89             $start, $map[0], $tab-length($line)-14, " ", $line,
  90             $map[1];
  91         } elsif ($map[0]) {
  92             printf FH "  { 0x%06s, 0, { 0x%06s }},%*s/* %s */\n",
  93             $start, $map[0], $tab-length($line)-17, " ",  $line;
  94         } elsif ($end) {
  95             printf FH "  { 0x%06s, 0x%06s },%*s/* %s */\n",
  96             $start, $end, $tab-length($line)-11, " ",  $line;
  97         } else {
  98             printf FH "  { 0x%06s           },%*s/* %s */\n",
  99             $start, $tab-length($line)-11, " ",  $line;
 100         }
 101     } else {
 102         $intable = 1 if !$intable;
 103         $tablename = $1;
 104
 105         ($varname = $tablename) =~ tr/./_/;
 106         $header =~ s/\n/\n * /s;
 107
 108         print FH "\n/*\n * $header */\n\n";
 109         print FH "struct ${prefix}_table_element ${prefix}_${profile}_${varname}\[\] = {\n";
 110     }
 111 }
 112
 113 close FH or die "cannot close $filename";