Merge pull request #83 from zuchka/revert-73-fixed-sequance-of-escape…

…d-markdown-issue

Revert "- refactor regex of escaped markdown to fix multiple italic markdown issue"

index.js

@@ -49,7 +49,7 @@ module.exports = function(md, options) {
       htmlReplaceRegex = new RegExp(
           '<' +
           joinedHtmlTagsToSkip +
-          '[^>]*>',
+          '[^>]*>', 
           'ig'
       );
     }
@@ -75,8 +75,10 @@ module.exports = function(md, options) {
       .replace(/^(\n)?\s{0,}#{1,6}\s*( (.+))? +#+$|^(\n)?\s{0,}#{1,6}\s*( (.+))?$/gm, '$1$3$4$6')
       // Remove * emphasis
       .replace(/([\*]+)(\S)(.*?\S)??\1/g, '$2$3')
-      // Remove _ emphasis
-      .replace(/(_+)(.*?\S)(_+)/g, '$1$3$4$5')
+      // Remove _ emphasis. Unlike *, _ emphasis gets rendered only if 
+      //   1. Either there is a whitespace character before opening _ and after closing _.
+      //   2. Or _ is at the start/end of the string.
+      .replace(/(^|\W)([_]+)(\S)(.*?\S)??\2($|\W)/g, '$1$3$4$5')
       // Remove code blocks
       .replace(/(`{3,})(.*?)\1/gm, '$2')
       // Remove inline code