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#!/usr/bin/perl
# Post-process the translated texinfo page to add the correct path for
# install-info, and to correct the alignment of the main menu.
use strict;
use warnings;
use open qw(:std :utf8); # assume utf8 encoding
use Text::Wrap;
$Text::Wrap::columns = 72;
*OUT = *STDOUT;
if (@ARGV and $ARGV[0] =~ /^-o(.*)/)
{
shift;
my $out = $1 || shift || die "$0: missing output file\n";
open OUT, '>', $out or die "$0: can't open $out ($!)\n";
}
my %fixed;
my $encoding = 'none';
my $lang;
my $last = '';
$/ = ''; # read paragraphs
while (<>)
{
if (!$lang and /^This is help2man-(.*)\.info\b/)
{
$lang = $1;
next;
}
if (!$fixed{menu} and $last =~ /^\* Menu:\n*$/)
{
my @entries;
my $width = 0;
for (split /\n/)
{
if (/^\* (.*)::\s+(.*)/)
{
my $w = length $1;
push @entries, [$w, $1, $2];
# Stash the largest width (within limits) to use when
# calculating the indent.
$width = $w if $w > $width and $w < 40;
}
else
{
# Append to previous entry.
s/^\s*//;
$entries[-1][-1] .= $_;
}
}
$_ = join "\n", (map {
my ($w, $node, $description) = @$_;
my $prefix = "* ${node}::";
# 6 for leading *, trailing ::, and spaces.
my $indent = ' ' x ($width + 6);
my $first;
if ($w > $width)
{
$first = $indent;
$prefix .= "\n";
}
else
{
$first = sprintf "%-*s", length $indent, $prefix;
$prefix = '';
}
$prefix . wrap $first, " $indent", $description;
} @entries), "\n";
$fixed{menu}++;
next;
}
if (!$fixed{info_dir} and /^START-INFO-DIR-ENTRY/m and $lang)
{
my $first = "* help2man-$lang: (help2man-$lang). ";
my $indent = ' ' x ((length $first) + 2);
s/^\* help2man: \(help2man\)\.\s*(.*)\nEND-INFO-DIR-ENTRY/
(my $t = $1) =~ s#\s+# #g; # normalise spaces
(wrap $first, $indent, $t) . "\nEND-INFO-DIR-ENTRY"/mse or next;
$fixed{info_dir}++;
next;
}
if (/^Local Variables:/m and /^coding: (\S+)/m)
{
$encoding = $1;
next;
}
}
continue
{
$last = $_;
print OUT;
}
warn "$0: didn't find menu to correct\n" unless $fixed{menu};
warn "$0: didn't find info dir entry to correct\n" unless $fixed{info_dir};
warn "$0: expected utf-8 encoding, found $encoding\n"
unless $encoding eq 'utf-8';
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