Merge pull request #3638 from lbeschastny/issue3638

Invalid block comments compilation

Author: jashkenas

lib/coffee-script/nodes.js

@@ -576,7 +576,7 @@ exports.Comment = class Comment extends Base
   makeReturn:      THIS
 
   compileNode: (o, level) ->
-    comment = @comment.replace /^(\s*)#/gm, "$1 *"
+    comment = @comment.replace /^(\s*)# /gm, "$1 * "
     code = "/*#{multident comment, @tab}#{if '\n' in comment then "\n#{@tab}" else ''} */"
     code = o.indent + code if (level or o.level) is LEVEL_TOP
     [@makeCode("\n"), @makeCode(code)]

src/nodes.coffee

@@ -399,3 +399,22 @@ test "#3132: Place block-comments nicely", ->
   
   """
   eq CoffeeScript.compile(input, bare: on), result
+
+test "#3638: Demand a whitespace after # symbol", ->
+  input = """
+  ###
+  #No
+  #whitespace
+  ###"""
+
+  result = """
+
+  /*
+  #No
+  #whitespace
+   */
+
+
+  """
+
+  eq CoffeeScript.compile(input, bare: on), result