fixed parse error for empty lines before else/elseif

moonscript/parse.lua

@@ -270,8 +270,8 @@ local build_grammar = wrap(function()
 		With = key"with" * Exp * key"do"^-1 * Body / mark"with",
 
 		If = key"if" * Exp * key"then"^-1 * Body *
-			((Break * Cmt(Indent, check_indent))^-1 * key"elseif" * Exp * key"then"^-1 * Body / mark"elseif")^0 *
-			((Break * Cmt(Indent, check_indent))^-1 * key"else" * Body / mark"else")^-1 / mark"if",
+			((Break * Cmt(Indent, check_indent))^-1 * EmptyLine^0 * key"elseif" * Exp * key"then"^-1 * Body / mark"elseif")^0 *
+			((Break * Cmt(Indent, check_indent))^-1 * EmptyLine^0 * key"else" * Body / mark"else")^-1 / mark"if",
 
 		While = key"while" * Exp * key"do"^-1 * Body / mark"while",
 

tests/inputs/syntax.moon

@@ -164,4 +164,24 @@ x = hello - world - something
   \cool 100) ->
   print something)!
 
+if something
+  03589
+
+-- okay what about this
+
+else
+  3434
+
+
+if something
+  yeah
+
+
+elseif "ymmm"
+
+  print "cool"
+
+else
+
+  okay
 

tests/outputs/syntax.lua

@@ -174,4 +174,16 @@ x = hello - world - something
     end
   end
   return print(something)
-end)()
+end)()
+if something then
+  _ = 3589
+else
+  _ = 3434
+end
+if something then
+  _ = yeah
+elseif "ymmm" then
+  print("cool")
+else
+  _ = okay
+end

todo

@@ -39,6 +39,3 @@ or
 
 * any/every keywords for comprehensions?
 
-
-fix error when blank line is before else block
-