| 1 | #!/usr/bin/env perl |
| 2 | # txt2pre --- convert my site's txt files to `pre'-based html |
| 3 | |
| 4 | # Copyright (C) 2014-2021 all contributors <meta@public-inbox.org> |
| 5 | # Copyright (c) 2021 Amin Bandali <bandali@gnu.org> |
| 6 | # |
| 7 | # This program is free software: you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU Affero General Public License as |
| 9 | # published by the Free Software Foundation, either version 3 of the |
| 10 | # License, or (at your option) any later version. |
| 11 | # |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU Affero General Public License for more details. |
| 16 | # |
| 17 | # You should have received a copy of the GNU Affero General Public License |
| 18 | # along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 19 | |
| 20 | # This simple script borrows from a script of the same name from the |
| 21 | # wonderful public-inbox project, under AGPLv3+, with additions of |
| 22 | # my own. |
| 23 | |
| 24 | |
| 25 | use strict; |
| 26 | use warnings 'all'; |
| 27 | use Getopt::Long; |
| 28 | |
| 29 | my $opt_lang = 'en'; |
| 30 | my $opt_index; |
| 31 | GetOptions ('lang=s' => \$opt_lang, |
| 32 | 'index' => \$opt_index) |
| 33 | or die("bad command line arguments\n"); |
| 34 | |
| 35 | my $link_re = |
| 36 | qr{([\('!])?\b((?:ftps?|https?|nntps?|imaps?|s?news|gopher):// |
| 37 | [\@:\w\.-]+(?:/ |
| 38 | (?:[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]*) |
| 39 | (?:\?[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]+)? |
| 40 | (?:\#[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%\?]+)? |
| 41 | )? |
| 42 | )}xi; |
| 43 | |
| 44 | my %pairs = ( |
| 45 | "(" => qr/(\)[\.,;\+]?)\z/, # Markdown (,), Ruby (+) (, for arrays) |
| 46 | "'" => qr/('[\.,;\+]?)\z/, # Perl / Ruby |
| 47 | "!" => qr/(![\.,;\+]?)\z/, # Perl / Ruby |
| 48 | ); |
| 49 | |
| 50 | my %html_map = ( |
| 51 | '&' => '&', |
| 52 | '<' => '<', |
| 53 | '>' => '>', |
| 54 | # '"' => '"', |
| 55 | # "'" => ''', |
| 56 | ); |
| 57 | |
| 58 | sub html_esc { |
| 59 | my ($s) = @_; |
| 60 | $s =~ s/([&<>])/$html_map{$1}/sge; |
| 61 | $s; |
| 62 | } |
| 63 | |
| 64 | sub linkify { |
| 65 | my ($s) = @_; |
| 66 | $s =~ s^$link_re^ |
| 67 | my $beg = $1 || ''; |
| 68 | my $url = $2; |
| 69 | my $end = ''; |
| 70 | |
| 71 | # it's fairly common to end URLs in messages with |
| 72 | # '.', ',' or ';' to denote the end of a statement; |
| 73 | # assume the intent was to end the statement/sentence |
| 74 | # in English |
| 75 | if (defined(my $re = $pairs{$beg})) { |
| 76 | if ($url =~ s/$re//) { |
| 77 | $end = $1; |
| 78 | } |
| 79 | } elsif ($url =~ s/(\))?([\.,;])\z//) { |
| 80 | $end = $2; |
| 81 | # require ')' to be paired with '(' |
| 82 | if (defined $1) { # ')' |
| 83 | if (index($url, '(') < 0) { |
| 84 | $end = ")$end"; |
| 85 | } else { |
| 86 | $url .= ')'; |
| 87 | } |
| 88 | } |
| 89 | } elsif ($url !~ /\(/ && $url =~ s/\)\z//) { |
| 90 | $end = ')'; |
| 91 | } |
| 92 | |
| 93 | $beg . "<a href=\"$url\">$url</a>" . $end; |
| 94 | ^geo; |
| 95 | $s; |
| 96 | } |
| 97 | |
| 98 | |
| 99 | my $txt = do { local $/; <STDIN> }; |
| 100 | |
| 101 | my $title = html_esc($txt =~ /\A([^\n]+)/); |
| 102 | $title =~ s/^\s+|\s+$//g; |
| 103 | if ($opt_lang eq 'fa') { |
| 104 | $title .= ' — بندعلی' if $title !~ /بندعلی/; |
| 105 | } else { |
| 106 | $title .= ' — bandali' if $title !~ /bandali/; |
| 107 | } |
| 108 | |
| 109 | my ($upd, $pub, $url) = $txt =~ /(.*)\r?\n(.*)\r?\n(.*)\r?\n?\z/; |
| 110 | ($upd) = $upd =~ /(?:updated|ویرایش): (.*)/ if $upd; |
| 111 | ($pub) = $pub =~ /(?:published|انتشار): (.*)/ if $pub; |
| 112 | ($url) = $url =~ /(?:plain text|متن ساده): (.*)/ if $url; |
| 113 | $url = 'https://bndl.org/bandali-cv.txt' |
| 114 | if (!$url and $title =~ /curriculum vitae/); |
| 115 | $url = html_esc($url) if $url; |
| 116 | |
| 117 | $txt = linkify(html_esc($txt)); |
| 118 | |
| 119 | print("<!doctype html>", |
| 120 | qq(<html lang="$opt_lang"), |
| 121 | $opt_lang eq 'fa' ? ' dir="rtl"' : '', |
| 122 | ">", |
| 123 | qq(<head> |
| 124 | <meta http-equiv="Content-Type" |
| 125 | content="text/html; charset=utf-8" />\n), |
| 126 | "<title>$title</title>\n", |
| 127 | qq(<link rel="icon" href="data:,">\n), |
| 128 | $url ? qq(<link rel="alternate" href="$url" |
| 129 | title="plain text" type="text/plain" />\n) : '', |
| 130 | ($opt_index and $opt_lang eq 'en') |
| 131 | ? qq(<link rel="alternate" href="https://bndl.org/fa/" |
| 132 | hreflang="fa" title="persian" />\n) |
| 133 | : ($opt_index and $opt_lang eq 'fa') |
| 134 | ? qq(<link rel="alternate" href="https://bndl.org/" |
| 135 | hreflang="en" title="english" />\n) |
| 136 | : '', |
| 137 | qq(<style>\@media(prefers-color-scheme:dark){ |
| 138 | body{background:#1c1c1c;color:white;}a:link{color:#acdeff;} |
| 139 | a:visited{color:#f8f;}a:active{color:#e00;}}), |
| 140 | $opt_lang eq 'fa' |
| 141 | ? qq(\n\@font-face{font-family:sahel;font-weight:normal; |
| 142 | src:local('Sahel WOL'),local('Sahel'), |
| 143 | url('sahel.woff2')format('woff2');}pre{font-family:sahel}) |
| 144 | : '', |
| 145 | "</style>\n", |
| 146 | "</head><body><pre>$txt</pre></body></html>\n"); |
| 147 | STDOUT->flush; |