www/jssrc/blerg/Util.js

   1 blerg = window.blerg || {};
   2
   3 blerg.Util = {};
   4
   5 // Dirty, terrible shim for rewritten links below
   6 blerg.Util.qlink = function() {
   7         try {
   8                 location.href = event.target.href;
   9         } catch(e) { }
  10         enyo.$.blerg.bubble('onNavigate');
  11         return false;
  12 }
  13
  14 blerg.Util.blergFormat = function(text) {
  15         var lines = text.split(/\r?\n/);
  16         if (lines[lines.length - 1] == '')
  17                 lines.pop();
  18
  19         var out = ['<p>'];
  20         var endpush = null;
  21         var listMode = false;
  22         lines.forEach(function(l) {
  23                 if (l == '') {
  24                         if (out[out.length - 1] == '<br>') {
  25                                 out[out.length - 1] = '<p>';
  26                         }
  27                         if (out[out.length - 1] == '</li>') {
  28                                 out.push('</ul>');
  29                                 out.push('<p>');
  30                                 listMode = false;
  31                         }
  32                         return;
  33                 }
  34
  35                 // Put quoted material into a special paragraph
  36                 if (l[0] == '>') {
  37                         var pi = out.lastIndexOf('<p>');
  38                         if (pi != -1) {
  39                                 out[pi] = '<p class="quote">';
  40                                 l = l.replace(/^>\s*/, '');
  41                         }
  42                 }
  43
  44                 // Sanitize HTML input
  45                 l = l.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  46
  47                 // Turn HTTP URLs into links
  48                 l = l.replace(/(\s|^)(https?:\/\/[a-zA-Z0-9.-]*[a-zA-Z0-9](\/([^\s"]*[^.!,;?()\s])?)?)/g, '$1<a href="$2">$2</a>');
  49
  50                 // Turn markdown links into links
  51                 var re;
  52
  53                 /*
  54                 // Craft a regex that finds URLs that end in the extensions specified by BlergMedia.audioExtensions.
  55                 re = new RegExp('(\\s|^)\\[([^\\]]+)\\]\\((https?:\\/\\/[a-zA-Z0-9.-]*[a-zA-Z0-9]\\/[^)"]*?\\.(' + BlergMedia.audioExtensions.join('|') + '))\\)', 'g');
  56                 l = l.replace(re, '$1<a href="$3">$2</a> <a href="$3" onclick="play_audio(); return false"><img src="/images/play.png"></a>');
  57
  58                 // Ditto, but use the extended markdown link syntax to specify the format
  59                 re = new RegExp('(\\s|^)\\[([^\\]]+)\\]\\((https?:\\/\\/[a-zA-Z0-9.-]*[a-zA-Z0-9](\\/[^)"]*?)?)\\s+audio:(' + BlergMedia.audioExtensions.join('|') + ')\\)', 'g');
  60                 l = l.replace(re, '$1<a href="$3">$2</a> <a href="$3" onclick="play_audio(); return false"><img src="/images/play.png"></a>');
  61
  62                 // Craft a regex that finds URLs that end in the extensions specified by BlergMedia.videoExtensions.
  63                 re = new RegExp('(\\s|^)\\[([^\\]]+)\\]\\((https?:\\/\\/[a-zA-Z0-9.-]*[a-zA-Z0-9]\\/[^)"]*?\\.(' + BlergMedia.videoExtensions.join('|') + '))\\)', 'g');
  64                 l = l.replace(re, '$1<a href="$3">$2</a> <a href="$3" onclick="play_video(); return false"><img src="/images/play.png"></a>');
  65
  66                 // Ditto, but use the extended markdown link syntax to specify the format
  67                 re = new RegExp('(\\s|^)\\[([^\\]]+)\\]\\((https?:\\/\\/[a-zA-Z0-9.-]*[a-zA-Z0-9](\\/[^)"]*?)?)\\s+video:(' + BlergMedia.videoExtensions.join('|') + ')\\)', 'g');
  68                 l = l.replace(re, '$1<a href="$3">$2</a> <a href="$3" onclick="play_video(); return false"><img src="/images/play.png"></a>');
  69                 */
  70
  71                 // Regular markdown links
  72                 l = l.replace(/(\s|^)\[([^\]]+)\]\((https?:\/\/[a-zA-Z0-9.-]*[a-zA-Z0-9](\/[^)"]*?)?)\)/g, '$1<a href="$3">$2</a>');
  73
  74                 // Turn *foo* into italics and **foo** into bold
  75                 l = l.replace(/([^\w\\]|^)\*\*(\w[^*]*)\*\*(\W|$)/g, '$1<b>$2</b>$3');
  76                 l = l.replace(/([^\w\\]|^)\*(\w[^*]*)\*(\W|$)/g, '$1<i>$2</i>$3');
  77
  78                 // Turn refs and tags into links
  79                 l = l.replace(/(\s|^)#([A-Za-z0-9_-]+)/g, '$1<a href="#/tag/$2" class="ref" onclick="return blerg.Util.qlink()">#$2</a>');
  80                 l = l.replace(/(\s|^)@([A-Za-z0-9_-]+)(\/\d+)?/g, '$1<a href="#$2$3" class="ref" onclick="return blerg.Util.qlink()">@$2</a>');
  81
  82                 // Create lists when lines begin with *
  83                 if (l[0] == '*') {
  84                         if (!listMode) {
  85                                 var pi = out.lastIndexOf('<p>');
  86                                 out[pi] = '<ul>';
  87                                 listMode = true;
  88                         }
  89                         l = l.replace(/^\*\s*/, '');
  90                         out.push('<li>');
  91                         endpush = '</li>';
  92                 }
  93
  94                 // Create headers when lines begin with = or #
  95                 if (l[0] == '=' || l[0] == '#') {
  96                         var m = l.match(/^([=#]+)/);
  97                         var depth = m[1].length;
  98                         if (depth <= 5) {
  99                                 l = l.replace(/^[=#]+\s*/, '').replace(/\s*[=#]+$/, '');
 100                                 out.push('<h' + depth + '>');
 101                                 endpush = '</h' + depth + '>';
 102                         }
 103                 }
 104
 105                 // Remove backslashes from escaped metachars
 106                 l = l.replace(/\\([*\[\]@#])/g, '$1');
 107
 108                 out.push(l);
 109                 if (endpush) {
 110                         out.push(endpush);
 111                         endpush = null;
 112                 } else {
 113                         out.push('<br>');
 114                 }
 115         });
 116         while (out[out.length - 1] == '<br>' || out[out.length - 1] == '<p>')
 117                 out.pop();
 118         if (listMode)
 119                 out.push('</ul>');
 120
 121         return out.join('');
 122 }