A nicer API for dealing with text replacements in Discourse's parser pipeline

app/assets/javascripts/discourse/dialects/github_code_dialect.js

@@ -78,56 +78,8 @@ Discourse.Dialect.on("register", function(event) {
 
 });
 
-/**
-  Ensure that content in a code block is fully escaped. This way it's not white listed
-  and we can use HTML and Javascript examples.
-
-  @event parseNode
-  @namespace Discourse.Dialect
-**/
-Discourse.Dialect.on("parseNode", function(event) {
-  var node = event.node;
-
-  if (node[0] === 'code') {
-    node[node.length-1] = Handlebars.Utils.escapeExpression(node[node.length-1]);
-  }
-});
-
-
-Discourse.Dialect.on("parseNode", function(event) {
-
-  var node = event.node,
-      opts = event.dialect.options,
-      insideCounts = event.insideCounts,
-      linebreaks = opts.traditional_markdown_linebreaks || Discourse.SiteSettings.traditional_markdown_linebreaks;
-
-  if (!linebreaks) {
-    // We don't add line breaks inside a pre
-    if (insideCounts.pre > 0) { return; }
-
-    if (node.length > 1) {
-      for (var j=1; j<node.length; j++) {
-        var textContent = node[j];
-
-        if (typeof textContent === "string") {
-
-          if (textContent === "\n") {
-            node[j] = ['br'];
-          } else {
-            var split = textContent.split(/\n+/);
-            if (split.length) {
-              var spliceInstructions = [j, 1];
-              for (var i=0; i<split.length; i++) {
-                if (split[i].length > 0) {
-                  spliceInstructions.push(split[i]);
-                  if (i !== split.length-1) { spliceInstructions.push(['br']); }
-                }
-              }
-              node.splice.apply(node, spliceInstructions);
-            }
-          }
-        }
-      }
-    }
-  }
+// Ensure that content in a code block is fully escaped. This way it's not white listed
+// and we can use HTML and Javascript examples.
+Discourse.Dialect.postProcessTag('code', function (contents) {
+  return Handlebars.Utils.escapeExpression(contents);
 });