Added ability to escape table row separator, fix #5

lib/rules_block/table.js

@@ -10,6 +10,34 @@ function getLine(state, line) {
   return state.src.substr(pos, max - pos);
 }
 
+function escapedSplit(str) {
+  var result = [],
+      pos = 0,
+      max = str.length,
+      ch,
+      escapes = 0,
+      lastPos = 0;
+
+  ch  = str.charCodeAt(pos);
+
+  while (pos < max) {
+    if (ch === 0x7c/* | */ && (escapes % 2 === 0)) {
+      result.push(str.substring(lastPos, pos));
+      lastPos = pos + 1;
+    } else if (ch === 0x5c/* \ */) {
+      escapes++;
+    } else {
+      escapes = 0;
+    }
+
+    ch  = str.charCodeAt(++pos);
+  }
+
+  result.push(str.substring(lastPos));
+
+  return result;
+}
+
 
 module.exports = function table(state, startLine, endLine, silent) {
   var ch, lineText, pos, i, nextLine, rows,
@@ -60,7 +88,7 @@ module.exports = function table(state, startLine, endLine, silent) {
 
   lineText = getLine(state, startLine).trim();
   if (lineText.indexOf('|') === -1) { return false; }
-  rows = lineText.replace(/^\||\|$/g, '').split('|');
+  rows = escapedSplit(lineText.replace(/^\||\|$/g, ''));
   if (aligns.length !== rows.length) { return false; }
   if (silent) { return true; }
 
@@ -110,14 +138,14 @@ module.exports = function table(state, startLine, endLine, silent) {
 
     lineText = getLine(state, nextLine).trim();
     if (lineText.indexOf('|') === -1) { break; }
-    rows = lineText.replace(/^\||\|$/g, '').split('|');
+    rows = escapedSplit(lineText.replace(/^\||\|$/g, ''));
 
     state.tokens.push({ type: 'tr_open', level: state.level++ });
     for (i = 0; i < rows.length; i++) {
       state.tokens.push({ type: 'td_open', align: aligns[i], level: state.level++ });
       state.tokens.push({
         type: 'inline',
-        content: rows[i].replace(/^\|? *| *\|?$/g, ''),
+        content: rows[i].trim(),
         level: state.level,
         children: []
       });

test/fixtures/markdown-it/tables.txt

@@ -223,3 +223,21 @@ paragraph
 </table>
 <p>paragraph</p>
 .
+
+Delimiter escaping:
+.
+| Heading 1 \\\\| Heading 2
+| --------- | ---------
+| Cell\|1\|| Cell\|2
+\| Cell\\\|3 \\| Cell\|4
+.
+<table>
+<thead>
+<tr><th>Heading 1 \\</th><th>Heading 2</th></tr>
+</thead>
+<tbody>
+<tr><td>Cell|1|</td><td>Cell|2</td></tr>
+<tr><td>| Cell\|3 \</td><td>Cell|4</td></tr>
+</tbody>
+</table>
+.