use \ for colon call operator

moonscript/parse.lua

@@ -240,8 +240,8 @@ local build_grammar = wrap(function()
 		InBlock = #Cmt(Indent, advance_indent) * Block * OutBlock,
 		OutBlock = Cmt("", pop_indent),
 
-		Import = key"import"*  Ct(ImportNameList) * key"from" * Exp / mark"import", 
-		ImportName = (Ct(sym":" / trim * Name) + Name),
+		Import = key"import" *  Ct(ImportNameList) * key"from" * Exp / mark"import", 
+		ImportName = (sym"\\" * Ct(Cc":" * Name) + Name),
 		ImportNameList = ImportName * (sym"," * ImportName)^0,
 
 		NameList = Name * (sym"," * Name)^0,
@@ -293,7 +293,6 @@ local build_grammar = wrap(function()
 			((Chain + DotChain + Callable) * Ct(ExpList^0)) / flatten_func +
 			Num,
 
-
 		String = Space * DoubleString + Space * SingleString + LuaString,
 		SingleString = simple_string("'"),
 		DoubleString = simple_string('"'),
@@ -320,7 +319,7 @@ local build_grammar = wrap(function()
 		-- shorthand dot call for use in with statement
 		DotChain =
 			(sym"." * Cc(-1) * (_Name / mark"dot") * ChainItem^0) / mark"chain" + 
-			(sym":" * Cc(-1) * (
+			(sym"\\" * Cc(-1) * (
 				(_Name * Invoke / mark"colon") * ChainItem^0 + 
 				(_Name / mark"colon_stub")
 			)) / mark"chain",
@@ -334,9 +333,8 @@ local build_grammar = wrap(function()
 
 		Slice = symx"[" * Num * sym":" * Num * (sym":" * Num)^-1 *sym"]" / mark"slice",
 
-		ColonCall = symx":" * (_Name * Invoke) / mark"colon",
-
-		ColonSuffix = symx":" * _Name / mark"colon_stub",
+		ColonCall = symx"\\" * (_Name * Invoke) / mark"colon",
+		ColonSuffix = symx"\\" * _Name / mark"colon_stub",
 
 		Invoke = FnArgs/mark"call" +
 			SingleString / wrap_func_arg +

tests/inputs/class.moon

@@ -7,7 +7,7 @@ class Hello
   __tostring: => "hello world"
 
 x = Hello 1,2
-x:hello()
+x\hello()
 
 print x
 
@@ -18,7 +18,7 @@ class Yikes extends Simple
   new: => print "created hello"
 
 x = Yikes()
-x:cool()
+x\cool()
 
 
 class Hi
@@ -34,6 +34,6 @@ class Simple extends Hi
   cool: => super 120302
 
 x = Simple()
-x:cool()
+x\cool()
 
 

tests/inputs/import.moon

@@ -3,10 +3,10 @@
 import hello from yeah
 import hello, world from table["cool"]
 
-import a, :b, c from items
+import a, \b, c from items
 
 
-import master, :ghost from find "mytable"
+import master, \ghost from find "mytable"
 
 
 a, yumm = 3434, "hello"
@@ -18,5 +18,5 @@ import something from a table
 
 
 if indent
-  import okay, :well from tables[100]
+  import okay, \well from tables[100]
 

tests/inputs/syntax.moon

@@ -97,9 +97,9 @@ argon =
     return world: (a,b) -> print "sum", a + b
 
 something.what()
-argon:world().something()
+argon\world().something()
 
-argon:somethin"200".world(1,2)
+argon\somethin"200".world(1,2)
 
 x = -434
 
@@ -134,10 +134,11 @@ x = #{#{},#{1},#{1,2}}
 
 hello, world
 
-something:hello(what) a,b
-something:hello what
-something.hello:world a,b
-something.hello:world(1,2,3) a,b
+something\hello(what) a,b
+something\hello what
+something.hello\world a,b
+something.hello\world(1,2,3) a,b
+
 
 x = 1232
 x += 10 + 3

tests/inputs/with.moon

@@ -13,9 +13,9 @@ with leaf
 
   .hi 1,2,3
 
-  :hi(1,2).world 2323
+  \hi(1,2).world 2323
 
-  :hi "yeah", "man"
+  \hi "yeah", "man"
   .world = 200
 
 zyzyzy = with something