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60 lines
1.1 KiB
60 lines
1.1 KiB
#!/usr/bin/env perl
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use strict;
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use warnings;
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no warnings 'uninitialized';
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use 5.14.0;
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use utf8;
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use open qw(:std :utf8);
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use Carp;
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use Mojo::DOM;
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my $input;
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{
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# line separator:
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local $/ = undef;
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$input = <>;
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}
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my $entry = '';
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if (exists $ENV{'WRT_ENTRY'}) {
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$entry = $ENV{'WRT_ENTRY'};
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}
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my @headers;
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my $dom;
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eval {
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local $SIG{__WARN__} = sub { die; };
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$dom = Mojo::DOM->new($input);
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};
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if ($@) {
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carp("Parsing issues for $input: $@");
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}
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eval {
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local $SIG{__WARN__} = sub { die; };
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$dom = Mojo::DOM->new($input);
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};
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if ($@) {
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carp("Parsing issues for $entry $@");
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}
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my $entry_toc_id = "${entry}-toc";
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my $toc = Mojo::DOM->new("<p>Contents</p> <ul id=${entry_toc_id}></ul>");
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foreach my $e ($dom->find('h1, h2, h3, h4, h5, h6')->each) {
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my $header_id = make_header_id($entry, $e->text);
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$e->attr->{id} = $header_id;
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$toc->at('ul')->append_content('<li><a href="#' . $header_id . '">' . $e->text . "</a></li>\n");
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}
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print "${toc}" . "${dom}";
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sub make_header_id {
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my ($prefix, $text) = @_;
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$text =~ s/[^a-z0-9]+/-/g;
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return $prefix . '-' . $text;
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}
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