- #!/usr/bin/perl
- # TODO: support multi-match within word
- # TODO: support multi-word match
- # TODO: always count and allow expressing which (default: all)
- # TODO: parse regex+commeent as definition in external markdown TODO file.
- # TODO: normal hyphenation within note (keep quote with word in "word")
- # TODO: clear font styling in notes
- # TODO: track headline levels and note skipping when "diving"
- use warnings;
- use strict;
- use feature qw(switch);
- no if $] >= 5.018, warnings => "experimental::smartmatch";
- use Pandoc::Filter 0.05;
- use Pandoc::Elements;
- my $breakable_chars = qr/[\&\;\/\.\?\!\=]/;
- my $hyphen_chars = qr/[\x{2010}-\x{2015}\x{2053}\x{2212}]/;
- my $doublequote_chars = qr/[\x{00AB}\x{00BB}\x{201C}-\x{201F}\x{300C}-\x{300F}\x{301D}-\x{301F}\x{FE41}-\x{FE44}\x{FF02}\x{FF62}\x{FF63}]/;
- my $singlequote_chars = qr/[\x{0060}\x{2018}\x{2019}\x{201A}\x{201B}\x{2039}\x{203A}\x{FF07}]/;
- my $odd_singlequote_chars = qr/[\x{2019}]/;
- my $inline_count;
- pandoc_filter(
- \&todo,
- );
- sub latex_encode {
- my $s = shift;
- $s =~ s/(?<!\s|$breakable_chars)($breakable_chars])(?!\s)/$1\\-/g;
- $s =~ s/$odd_singlequote_chars/'/g; #'
- return $s;
- }
- sub mark_inside {
- my ( $before, $it, $after, $note ) = @_;
- return [ RawInline( 'latex', sprintf( '%s\\mytodo{%s}{%s}%s',
- latex_encode($before),
- latex_encode($note),
- latex_encode($it),
- latex_encode($after),
- ))];
- };
- sub todo {
- my $self = shift;
- $inline_count = 0 if ( $self->is_block );
- return unless ( $self->name eq 'Str' );
- given ($self->content) {
- $inline_count++;
- when (/^(-)$/) {
- return mark_inside( '', $1, '', 'maybe break' ) };
- when (/^(---+)(.+?)$/) {
- return mark_inside( '', $1, $2, 'maybe break' ) };
- when (/^(.+?)(--+)(.+?)$/) {
- return mark_inside( $1, $2, $3, 'maybe range' ) };
- when ( /^(.*?)($hyphen_chars(?:.*$hyphen_chars)?)(.*?)$/ ) {
- return mark_inside( $1, $2, $3, 'fancy hyphen' ) };
- when ( /^(.*?)($doublequote_chars(?:.*$doublequote_chars)?)(.*?)$/ ) {
- return mark_inside( $1, $2, $3, 'fancy quote' ) };
- when ( /^(.*?)($singlequote_chars(?:.*$singlequote_chars)?)(.*?)$/ ) {
- return mark_inside( $1, $2, $3, 'fancy quote' ) };
- when ( $inline_count == 1 and /^(\(?\d+\)|\d+\.)$/ ) {
- return mark_inside( '', $1, '', 'maybe list' ) };
- when ( $inline_count == 1 and /^(\(?[ivxc]+\)|\d+\.[\d.]+)$/ ) {
- return mark_inside( '', $1, '', 'maybe fancy list' ) };
- default { return };
- }
- };
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