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#!/usr/bin/env perl
use v5.36;
use warnings;
use diagnostics;
use strict;
use utf8;
use open qw(:std :encoding(UTF-8));
use charnames ':full';
my $width = 12;
my $height = 22;
my $dblwidth = 2 * $width;
my $lnr = 0;
my $n = $height;
while (<>) {
chop;
++$lnr;
if (/^STARTCHAR\s+[Uu]\+([[:xdigit:]]+)/) {
my $cp = hex $1;
my $name = charnames::viacode ($cp) // '<no name>';
$_ = sprintf "STARTCHAR U+%04x %s", $cp, $name;
}
elsif (/^[[:digit:]]+ \|(.{$width})\|/) {
$_ = sprintf "%02d |%s|", $n--, $1;
}
elsif (/^[[:digit:]]+ \|(.{$dblwidth})\|/) {
$_ = sprintf "%02d |%s|", $n--, $1;
}
elsif (/^ENDCHAR$/) {
if ($n != 0) {
my $N = 22 - $n;
print STDERR
"line $lnr: ENDCHAR after $N bitmap rows, expected $height\n";
exit 1;
}
$n = $height;
}
else {
print STDERR "line $lnr: unrecognized input: '$_'\n";
exit 1;
}
print "$_\n";
}
# vi: set tabstop=2 shiftwidth=2 expandtab fileformat=unix:
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