[markdown mode] Fix handling of escaped characters

Issue #2792

Author: marijnh

mode/markdown/markdown.js

@@ -360,15 +360,9 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
 
     var ch = stream.next();
 
-    if (state.escape) {
-      state.escape = false;
-      return getType(state);
-    }
-
     if (ch === '\\') {
-      if (modeCfg.highlightFormatting) state.formatting = "escape";
-      state.escape = true;
-      return getType(state);
+      stream.next();
+      if (modeCfg.highlightFormatting) return getType(state) + " escape";
     }
 
     // Matches link titles present on next line
@@ -650,7 +644,6 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
         inline: inlineNormal,
         text: handleText,
 
-        escape: false,
         formatting: false,
         linkText: false,
         linkHref: false,
@@ -683,7 +676,6 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
 
         inline: s.inline,
         text: s.text,
-        escape: false,
         formatting: false,
         linkTitle: s.linkTitle,
         em: s.em,
@@ -718,9 +710,6 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
           state.thisLineHasContent = true;
         }
 
-        // Reset state.escape
-        state.escape = false;
-
         // Reset state.taskList
         state.taskList = false;