37 lines
1.0 KiB
Markdown
37 lines
1.0 KiB
Markdown
[[!template id=plugin name=headinganchors author="[[PaulWise]]"]]
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This is a simple plugin to add ids (which will server as [[ikiwiki/anchor]]s) to all headings, based on their text. It
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works as a postprocessing filter, allowing it to work on mdwn, wiki, html,
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rst and any other format that produces html. The code is available here:
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#!/usr/bin/perl
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# quick HTML heading id adder by Paul Wise
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package IkiWiki::Plugin::headinganchors;
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use warnings;
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use strict;
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use IkiWiki 2.00;
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sub import {
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hook(type => "sanitize", id => "headinganchors", call => \&headinganchors);
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}
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sub text_to_anchor {
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my $str = shift;
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$str =~ s/^\s+//;
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$str =~ s/\s+$//;
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$str = lc($str);
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$str =~ s/[&\?"\'\.,\(\)!]//mig;
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$str =~ s/[^a-z]/_/mig;
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return $str;
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}
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sub headinganchors (@) {
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my %params=@_;
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my $content=$params{content};
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$content=~s{<h([0-9])>([^>]*)</h([0-9])>}{'<h'.$1.' id="'.text_to_anchor($2).'">'.$2.'</h'.$3.'>'}gie;
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return $content;
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}
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