Revert "rough implementation of task lists. see markedjs#107 markedjs…

…#111."

This reverts commit 26cef98.

lib/marked.js

@@ -22,7 +22,6 @@ var block = {
   list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
   html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
   def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
-  task: noop,
   table: noop,
   paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
   text: /^[^\n]+/
@@ -76,7 +75,6 @@ block.normal = merge({}, block);
  */
 
 block.gfm = merge({}, block.normal, {
-  task: /^(\s*\[[x ]\][^\n]+\n)+\n*/,
   fences: /^ *(`{3,}|~{3,}) *(\S+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/,
   paragraph: /^/
 });
@@ -377,33 +375,6 @@ Lexer.prototype.token = function(src, top, bq) {
       continue;
     }
 
-    // task (gfm)
-    if (top && (cap = this.rules.task.exec(src)) {
-      src = src.substring(cap[0].length);
-
-      this.tokens.push({
-        type: 'task_list_start'
-      });
-
-      cap[0] = cap[0].replace(/^\s+|\s+$/g, '');
-      cap = cap[0].split(/\n+/);
-
-      i = 0;
-      l = cap.length;
-
-      for (; i < l; i++) {
-        this.tokens.push({
-          type: 'task_item',
-          checked: /^\s*\[x\]/.test(cap[i]),
-          text: cap[i].replace(/^\s*\[[x ]\]\s*/, '')
-        });
-      }
-
-      this.tokens.push({
-        type: 'task_list_end'
-      });
-    }
-
     // table (gfm)
     if (top && (cap = this.rules.table.exec(src))) {
       src = src.substring(cap[0].length);
@@ -1009,25 +980,6 @@ Parser.prototype.tok = function() {
         this.token.lang,
         this.token.escaped);
     }
-    case 'task_list_start': {
-      var body = ''
-        , i = 1;
-
-      while (this.next().type !== 'task_list_end') {
-        body += '<li class="task-list-item"><label>'
-          + '<input type="checkbox"'
-          + ' class="task-list-item-checkbox"
-          + ' data-item-index="' + (i++) + '"'
-          + ' data-item-complete="' + (this.token.checked ? 1 : 0) + '"'
-          + ' ' + (this.token.disabled ? 'disabled=""' + '') + '>'
-          + ' ' + this.inline.output(this.token.text)
-          + '</label></li>';
-      }
-
-      return '<ul class="task-list">'
-        + body
-        + '</ul>';
-    }
     case 'table': {
       var header = ''
         , body = ''