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#! /usr/bin/perl -w
# Copyright (C) 2002-2025 Simon Josefsson
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# I consider the output of this program to be unrestricted. Use it as
# you will.
use strict;
my ($tab) = 59;
my ($intable) = 0;
my ($entries) = 0;
my ($tablename);
my ($varname);
my ($starheader, $header);
my ($profile) = "rfc3454";
my ($filename) = "$profile.c";
my ($headername) = "$profile.h";
my ($line, $start, $end, @map);
open(FH, ">$filename") or die "cannot open $filename for writing";
print FH "/* This file is automatically generated. DO NOT EDIT!\n";
print FH " Instead, edit gen-stringprep-tables.pl and re-run. */\n\n";
print FH "#include <config.h>\n";
print FH "#include \"stringprep.h\"\n";
open(FHH, ">$headername") or die "cannot open $headername for writing";
print FHH "/* This file is automatically generated. DO NOT EDIT!\n";
print FHH " Instead, edit gen-stringprep-tables.pl and re-run. */\n\n";
while(<>) {
s/^ (.*)/$1/g; # for rfc
$line = $_;
die "already in table" if $intable && m,^----- Start Table (.*) -----,;
die "not in table" if !$intable && m,^----- End Table (.*) -----,;
if ($intable && m,^----- End Table (.*) -----,) {
die "table error" unless $1 eq $tablename ||
($1 eq "C.1.2" && $tablename eq "C.1.1"); # Typo in draft
print FH " { 0 },\n";
print FH "};\n\n";
print FHH "#define N_STRINGPREP_${profile}_${varname} ${entries}\n";
$intable = 0;
$entries = 0;
}
if (m,^[A-Z],) {
$header = $line;
} elsif (!m,^[ -],) {
$header .= $line;
}
next unless ($intable || m,^----- Start Table (.*) -----,);
if ($intable) {
$_ = $line;
chop $line;
next if m,^$,;
next if m,^Hoffman & Blanchet Standards Track \[Page [0-9]+\]$,;
next if m,^ $,;
next if m,RFC 3454 Preparation of Internationalized Strings December 2002,;
die "regexp failed on line: $line" unless
m,^([0-9A-F]+)(-([0-9A-F]+))?(; ([0-9A-F]+)( ([0-9A-F]+))?( ([0-9A-F]+))?( ([0-9A-F]+))?;)?,;
die "too many mapping targets on line: $line" if $12;
$start = $1;
$end = $3;
$map[0] = $5;
$map[1] = $7;
$map[2] = $9;
$map[3] = $11;
die "tables tried to map a range" if $end && $map[0];
if ($map[3]) {
printf FH " { 0x%06s, 0x%06s, { 0x%06s,%*s/* %s */\n 0x%06s, 0x%06s, 0x%06s }},\n",
$start, $start, $map[0], $tab-length($line)-13, " ", $line,
$map[1], $map[2], $map[3];
} elsif ($map[2]) {
printf FH " { 0x%06s, 0x%06s, { 0x%06s,%*s/* %s */\n 0x%06s, 0x%06s }},\n",
$start, $start, $map[0], $tab-length($line)-14, " ", $line,
$map[1], $map[2];
} elsif ($map[1]) {
printf FH " { 0x%06s, 0x%06s, { 0x%06s,%*s/* %s */\n 0x%06s }},\n",
$start, $start, $map[0], $tab-length($line)-14, " ", $line,
$map[1];
} elsif ($map[0]) {
printf FH " { 0x%06s, 0x%06s, { 0x%06s }},%*s/* %s */\n",
$start, $start, $map[0], $tab-length($line)-17, " ", $line;
} elsif ($end) {
printf FH " { 0x%06s, 0x%06s },%*s/* %s */\n",
$start, $end, $tab-length($line)-11, " ", $line;
} else {
printf FH " { 0x%06s, 0x%06s },%*s/* %s */\n",
$start, $start, $tab-length($line)-11, " ", $line;
}
$entries++;
} else {
$intable = 1 if !$intable;
$tablename = $1;
($varname = $tablename) =~ tr/./_/;
$header =~ s/\n/\n * /s;
print FH "\n/*\n * $header */\n\n";
print FH "const Stringprep_table_element stringprep_${profile}_${varname}\[\] = {\n";
}
}
close FHH or die "cannot close $headername";
close FH or die "cannot close $filename";
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