[continuelist addon] blockquote support for newlineAndIndentContinueMarkdownList

Closes #2874

Author: leeoniya

addon/edit/continuelist.js

@@ -11,18 +11,20 @@
 })(function(CodeMirror) {
   "use strict";
 
-  var listRE = /^(\s*)([*+-]|(\d+)\.)(\s+)/,
-      emptyListRE = /^(\s*)([*+-]|(\d+)\.)(\s*)$/,
+  var listRE = /^(\s*)([> ]+|[*+-]|(\d+)\.)(\s+)/,
+      emptyListRE = /^(\s*)([> ]+|[*+-]|(\d+)\.)(\s*)$/,
       unorderedBullets = "*+-";
 
   CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
     if (cm.getOption("disableInput")) return CodeMirror.Pass;
     var ranges = cm.listSelections(), replacements = [];
     for (var i = 0; i < ranges.length; i++) {
       var pos = ranges[i].head, match;
-      var inList = cm.getStateAfter(pos.line).list !== false;
+      var eolState = cm.getStateAfter(pos.line);
+      var inList = eolState.list !== false;
+      var inQuote = eolState.quote !== false;
 
-      if (!ranges[i].empty() || !inList || !(match = cm.getLine(pos.line).match(listRE))) {
+      if (!ranges[i].empty() || (!inList && !inQuote) || !(match = cm.getLine(pos.line).match(listRE))) {
         cm.execCommand("newlineAndIndent");
         return;
       }
@@ -36,7 +38,7 @@
 
       } else {
         var indent = match[1], after = match[4];
-        var bullet = unorderedBullets.indexOf(match[2]) >= 0
+        var bullet = unorderedBullets.indexOf(match[2]) >= 0 || match[2].indexOf(">") >= 0
           ? match[2]
           : (parseInt(match[3], 10) + 1) + ".";