classes/miniwiki.php

   1 <?php
   2
   3 class MiniWiki
   4 {
   5
   6     private static $patternsWiki = array();
   7     private static $replacementHTML = array();
   8     private static $replacementText = array();
   9
  10     private static $info     = array();
  11
  12     public static function Markup($id, $pattern, $replacement, $replacementTxt, $info = null)
  13     {
  14         MiniWiki::$patternsWiki[$id] = $pattern;
  15         MiniWiki::$replacementHTML[$id] = $replacement;
  16         MiniWiki::$replacementText[$id] = $replacementTxt;
  17         if ($info) {
  18             MiniWiki::$info[$id] = $info;
  19         }
  20     }
  21
  22     public static function init()
  23     {
  24         if (isset(MiniWiki::$patternsWiki[0])) {
  25             return;
  26         }
  27         MiniWiki::Markup(0, "/(\r\n|\r([^\n]))/", "\n$2", "\n$2");
  28
  29         // retours à la ligne avec \\
  30         MiniWiki::Markup(1, "/\\\\(?".">(\\\\*))\n/e", "str_repeat('<br />\n',strlen('$1'))", "str_repeat('\n',strlen('$1'))", "ligne1\\\\\nligne2");
  31
  32         // bold, italic and others
  33         // ''' bold '''
  34         MiniWiki::Markup(2, "/'''(.*?)'''/",'<strong>$1</strong>','*$1*', "'''gras'''");
  35         // '' italic ''
  36         MiniWiki::Markup(3, "/''(.*?)''/",'<em>$1</em>','/$1/', "''italique''");
  37         // '+ big +'
  38         MiniWiki::Markup(4, "/'\\+(.*?)\\+'/",'<big>$1</big>','*$1*', "'+grand+'");
  39         // '- small -'
  40         MiniWiki::Markup(5, "/'\\-(.*?)\\-'/",'<small>$1</small>','$1', "'-petit-'");
  41         // '^superscript^'
  42         MiniWiki::Markup(6, "/'\\^(.*?)\\^'/",'<sup>$1</sup>','$1', "'^exposant^'");
  43         // '_subscript_'
  44         MiniWiki::Markup(7, "/'_(.*?)_'/",'<sub>$1</sub>','$1', "'_indice_'");
  45         // {+ underline +}
  46         MiniWiki::Markup(8, "/\\{\\+(.*?)\\+\\}/",'<ins>$1</ins>','_$1_', "{+insertion+}");
  47         // {- strikeout -}
  48         MiniWiki::Markup(9, "/\\{-(.*?)-\\}/",'<del>$1</del>','-$1-', "{-suppression-}");
  49         // [+ big +] [++ bigger ++] [+++ even bigger +++] ...
  50         MiniWiki::Markup(10, "/\\[(([-+])+)(.*?)\\1\\]/e","'<span style=\'font-size:'.(round(pow(6/5,$2strlen('$1'))*100,0)).'%\'>$3</span>'", "'$3'", "[+ grand +]\n\n[++ plus grand ++]\n\n[+++ encore plus grand +++]");
  51
  52         // ----- <hr/>
  53         MiniWiki::Markup(11, "/(\n|^)--(--+| \n)/s", '$1<hr/>', '$1-- '."\n", "----\n");
  54         // titles
  55         MiniWiki::Markup(12, '/(\n|^)(!+)([^\n]*)/se', "'$1<h'.strlen('$2').'>$3</h'.strlen('$2').'>'", "'$1$3'",
  56                              "!titre1\n\n!!titre2\n\n!!!titre3");
  57
  58         // * unordered list
  59         MiniWiki::Markup(13, "/(^|\n)\*(([^\n]*(\n|$))(\*[^\n]*(\n|$))*)/se", "'<ul><li>'.str_replace(\"\\n*\",'</li><li>','$2').'</li></ul>'", "$0", "* element1\n* element2\n* element3");
  60         // # unordered list
  61         MiniWiki::Markup(14, "/(^|\n)#(([^\n]*(\n|$))(#[^\n]*(\n|$))*)/se", "'<ol><li>'.str_replace(\"\\n#\",'</li><li>','$2').'</li></ol>'", "$0", "# element1\n# element2\n# element3");
  62
  63         // links
  64         MiniWiki::Markup(15, '/((?:https?|ftp):\/\/(?:\.*,*[\w@~%$£µ&i#\-+=_\/\?;])*)/ui', '<a href="\\0">\\0</a>', '[\\0]');
  65         MiniWiki::Markup(16, '/(\s|^|\\[\\[)www\.((?:\.*,*[\w@~%$£µ&i#\-+=_\/\?;])*)/iu', '\\1<a href="http://www.\\2">www.\\2</a>', '[http://www.\\2]');
  66         MiniWiki::Markup(17, '/(?:mailto:)?([a-z0-9.\-+_]+@([\-.+_]?[a-z0-9])+)/i', '<a href="mailto:\\0">\\0</a>', '[mailto:\\0]');
  67         MiniWiki::Markup(18, '/\\[\\[\\s*<a href="([^>]*)">.*<\/a>\\s*\|([^\\]]+)\\]\\]/i', '<a href="\\1">\\2</a>', '\\2 [\\1]', "[[http://www.example.com|Mon site web]]\n\nhttp://www.example.com\n\ntest@example.com");
  68
  69         // paragraphs and empty lines
  70         MiniWiki::Markup(19, "/\n\n/", '</p><p>', "\n\n", "paragraphe1\n\nparagraphe2");
  71         MiniWiki::Markup(20, "/\n/", ' ', "\n");
  72         MiniWiki::Markup(21, "/^.*<\/p><p>.*$/s", "<p>$0</p>", "$0");
  73     }
  74
  75     public static function WikiToHTML($wiki, $title = false)
  76     {
  77         if (!$title) {
  78             $oldrule12 = MiniWiki::$replacementHTML[12];
  79             MiniWiki::$replacementHTML[12] = "'$0'";
  80         }
  81         $html = preg_replace(MiniWiki::$patternsWiki,
  82                              MiniWiki::$replacementHTML,
  83                              htmlentities(trim($wiki), ENT_COMPAT, 'UTF-8'));
  84         if (!$title) {
  85             MiniWiki::$replacementHTML[12] = $oldrule12;
  86         }
  87         return $html;
  88     }
  89
  90     private static function justify($text,$n)
  91     {
  92         $arr = explode("\n",wordwrap($text,$n));
  93         $arr = array_map('trim',$arr);
  94         $res = '';
  95         foreach ($arr as $key => $line) {
  96             $nxl       = isset($arr[$key+1]) ? trim($arr[$key+1]) : '';
  97             $nxl_split = preg_split('! +!',$nxl);
  98             $nxw_len   = count($nxl_split) ? strlen($nxl_split[0]) : 0;
  99             $line      = trim($line);
 100
 101             if (strlen($line)+1+$nxw_len < $n) {
 102                 $res .= "$line\n";
 103                 continue;
 104             }
 105
 106             if (preg_match('![.:;]$!',$line)) {
 107                 $res .= "$line\n";
 108                 continue;
 109             }
 110
 111             $tmp   = preg_split('! +!',trim($line));
 112             $words = count($tmp);
 113             if ($words <= 1) {
 114                 $res .= "$line\n";
 115                 continue;
 116             }
 117
 118             $len   = array_sum(array_map('strlen',$tmp));
 119             $empty = $n - $len;
 120             $sw    = floatval($empty) / floatval($words-1);
 121
 122             $cur = 0;
 123             $l   = '';
 124             foreach ($tmp as $word) {
 125                 $l   .= $word;
 126                 $cur += $sw + strlen($word);
 127                 $l    = str_pad($l,intval($cur+0.5));
 128             }
 129             $res .= trim($l)."\n";
 130         }
 131         return trim($res);
 132     }
 133
 134
 135     public static function WikiToText($wiki, $just=false, $indent=0, $width=68, $title=false)
 136     {
 137         if (!$title) {
 138             $oldrule12 = MiniWiki::$replacementHTML[12];
 139             MiniWiki::$replacementHTML[12] = "'$0'";
 140         }
 141         $text = preg_replace(MiniWiki::$patternsWiki, MiniWiki::$replacementText, trim($wiki));
 142         if (!$title) {
 143             MiniWiki::$replacementHTML[12] = $oldrule12;
 144         }
 145         $text = $just ? MiniWiki::justify($text,$width-$indent) : wordwrap($text,$width-$indent);
 146         if($indent) {
 147             $ind = str_pad('',$indent);
 148             $text = $ind.str_replace("\n","\n$ind",$text);
 149         }
 150         return $text;
 151     }
 152
 153     static public function help($with_title = false)
 154     {
 155         if (!$with_title) {
 156             $info12 = MiniWiki::$info[12];
 157             unset(MiniWiki::$info[12]);
 158         }
 159
 160         $res = array();
 161         foreach (MiniWiki::$info as $value) {
 162             $res[$value] = MiniWiki::wikiToHtml($value, true);
 163         }
 164
 165         if (!$with_title) {
 166             MiniWiki::$info[12] = $info12;
 167         }
 168         return $res;
 169     }
 170 }
 171
 172 MiniWiki::init();
 173
 174 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 175 ?>