Merge pull request markedjs#1258 from tomtheisen/gfm-strike

GFM strikethrough compatibility

Author: styfle

lib/marked.js

@@ -588,7 +588,7 @@ inline.gfm = merge({}, inline.normal, {
     .replace('email', inline._email)
     .getRegex(),
   _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
-  del: /^~~(?=\S)([\s\S]*?\S)~~/,
+  del: /^~+(?=\S)([\s\S]*?\S)~+/,
   text: edit(inline.text)
     .replace(']|', '~]|')
     .replace('|', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|')

test/specs/gfm/gfm-spec.js

@@ -56,7 +56,7 @@ describe('GFM 0.28 Task list items', function() {
 describe('GFM 0.28 Strikethrough', function() {
   var section = 'Strikethrough';
 
-  var shouldPassButFails = [469, 470];
+  var shouldPassButFails = [];
 
   var willNotBeAttemptedByCoreTeam = [];