trifecta: allow _ at identifier start

2014-08-03 16:20:09 +02:00 · 2014-08-03 16:20:09 +02:00 · e5a0f645d2
parent 19c77ae2d1
commit e5a0f645d2
1 changed files with 1 additions and 1 deletions
--- a/Nix/Parser/Library.hs
+++ b/Nix/Parser/Library.hs
@ -83,7 +83,7 @@ import qualified Data.HashSet as HashSet
 identStyle :: IdentifierStyle Parser
 identStyle = IdentifierStyle
  { _styleName = "nix"
-  , _styleStart = letter
+  , _styleStart = letter <|> char '_'
  , _styleLetter = alphaNum <|> oneOf "_."
  , _styleReserved = HashSet.fromList reservedNames
  , _styleHighlight = Identifier