| 1 | #! /usr/bin/perl -W |
| 2 | # |
| 3 | # footnotes Version 0.1 by Thomas Hochstein |
| 4 | # |
| 5 | # This script will convert footnotes in WP-footnotes notation |
| 6 | # to MultiMarkDown, i.e. replace "((Text for footnote))" with |
| 7 | # "[^1]" and add "[^1]: Text for footnote" at the end of the |
| 8 | # text, incrementing the counter each time, or the other way |
| 9 | # round. |
| 10 | # |
| 11 | # Copyright (c) 2014 Thomas Hochstein <thh@inter.net> |
| 12 | # |
| 13 | # It can be redistributed and/or modified under the same terms under |
| 14 | # which Perl itself is published. |
| 15 | |
| 16 | my $VERSION = "0.1"; |
| 17 | |
| 18 | use strict; |
| 19 | use Getopt::Long qw(GetOptions); |
| 20 | |
| 21 | # read commandline option(s) |
| 22 | my ($OptTo,$OptFile); |
| 23 | GetOptions ('t|to=s' => \$OptTo, |
| 24 | 'f|file=s' => \$OptFile, |
| 25 | 'h|help' => \&ShowPOD, |
| 26 | 'V|version' => \&ShowVersion) or exit 1; |
| 27 | |
| 28 | # read whole article from STDIN or --file |
| 29 | undef $/; |
| 30 | my $article; |
| 31 | if ($OptFile) { |
| 32 | open(FILE, "< $OptFile") or die "Can't open $OptFile: $!"; |
| 33 | $article = <FILE>; |
| 34 | close(FILE); |
| 35 | } else { |
| 36 | $article = <>; |
| 37 | } |
| 38 | $/ = "\n"; |
| 39 | |
| 40 | # conversion and output |
| 41 | my $output; |
| 42 | |
| 43 | if (lc($OptTo) eq 'mmd') { |
| 44 | $output = &ConvertToMMD($article); |
| 45 | } elsif (lc($OptTo) eq 'wp') { |
| 46 | $output = &ConvertToWP($article); |
| 47 | } else { |
| 48 | print "Please set '--to' to 'mmd' or 'wp'!\n"; |
| 49 | exit(1); |
| 50 | } |
| 51 | |
| 52 | print $output; |
| 53 | exit(0); |
| 54 | |
| 55 | ################################################################################ |
| 56 | |
| 57 | sub ConvertToMMD { |
| 58 | my $article = shift; |
| 59 | my $footnotes; |
| 60 | my $counter = 1; |
| 61 | |
| 62 | # match and remove all ((...)), |
| 63 | # replacing them with [^n], incrementing n each time |
| 64 | while ( $article =~ s/\(\((.+?)\)\)/"[^$counter]"/seo ) { |
| 65 | $footnotes .= "[^$counter]: " . $1 . "\n"; |
| 66 | $counter++; |
| 67 | } |
| 68 | |
| 69 | return "$article\n\n$footnotes\n"; |
| 70 | } |
| 71 | |
| 72 | sub ConvertToWP { |
| 73 | my $article = shift; |
| 74 | my @footnotes; |
| 75 | my $counter = 1; |
| 76 | |
| 77 | # read footnotes in [^n] format |
| 78 | while ( $article =~ s/^\[\^$counter\]: (.+)$//m ) { |
| 79 | $footnotes[$counter] = $1; |
| 80 | $counter++; |
| 81 | } |
| 82 | |
| 83 | # replace footnote plcaeholders with footnote content |
| 84 | $counter = 0; |
| 85 | foreach my $footnote (@footnotes) { |
| 86 | $article =~ s/\[\^$counter\]/"(($footnote))"/eg; |
| 87 | $counter++; |
| 88 | } |
| 89 | |
| 90 | # remove trailing whitespace |
| 91 | $article =~ s/\n+$//g; |
| 92 | |
| 93 | return "$article\n"; |
| 94 | } |
| 95 | |
| 96 | sub ShowVersion { |
| 97 | print "MMD-FootNotes v$VERSION\n"; |
| 98 | print "Copyright (c) 2014 Thomas Hochstein <thh\@inter.net>\n"; |
| 99 | print "This program is free software; you may redistribute it ". |
| 100 | "and/or modify it under the same terms as Perl itself.\n"; |
| 101 | exit(100); |
| 102 | }; |
| 103 | |
| 104 | sub ShowPOD { |
| 105 | exec('perldoc', $0); |
| 106 | exit(100); |
| 107 | }; |