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#!/usr/bin/perl
# describe_unicodes -- add human readable descriptions to unicodes
# Copyright © 2005 Anton Zinoviev <anton@lml.bas.bg>
# 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 2 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.
# If you have not received a copy of the GNU General Public License
# along with this program, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
use strict;
my $utf = "/usr/share/i18n/charmaps/UTF-8.gz";
sub debug {
print STDERR "@_";
}
if ($ARGV[0] eq "--help" || $ARGV[0] eq "-h") {
print STDERR <<EOT;
Usage: describe_unicodes FILE
Adds a comment lines in FILE for every substring of the form "U+NNNN",
where NNNN are hexadecimal digits.
EOT
exit 0
}
my $file = $ARGV[0];
my $line = 0;
my %descriptions;
open UTF, "zcat $utf |" or die "$0: zcat $utf: $!\n";
while (<UTF>) {
$line++;
last if (/^[[:space:]]*CHARMAP[[:space:]]*$/);
}
while (<UTF>) {
$line++;
last if (/^[[:space:]]*END[[:space:]]*CHARMAP[[:space:]]*$/);
/\<U([0-9a-fA-F]+)\>[[:space:]]+[^[:space:]]+[[:space:]]+(.*)/
or die "$0: $utf: syntax error on line $line: $_\n";
$descriptions{hex ($1)} = $2;
}
close UTF;
my @output;
open FILE, "$file" or die "$0: $file: $!\n";
while (<FILE>) {
push (@output, $_) unless (/^\# U\+[0-9a-fA-F]+: [^ ]/);
s/#.*//;
while (/^.*?U\+([0-9a-fA-F]+)(.*)/) {
push (@output,
sprintf ("# U+%s: %s\n", $1, $descriptions{hex ($1)}));
$_ = $2;
}
}
close FILE;
open FILE, ">$file" or die "$0: $file: $!\n";
foreach (@output) {
print FILE;
}
close FILE;
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