From 8ec059154dab3adbbb7adbe29f906624cd76935e Mon Sep 17 00:00:00 2001
From: sewardj <unknown>
Date: Thu, 7 Jun 2001 16:00:18 +0000
Subject: [PATCH] [project @ 2001-06-07 16:00:18 by sewardj] Allow underscores
 in module names presented to the :module command.

---
 ghc/compiler/ghci/InteractiveUI.hs |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ghc/compiler/ghci/InteractiveUI.hs b/ghc/compiler/ghci/InteractiveUI.hs
index 011bb86..d0bc03c 100644
--- a/ghc/compiler/ghci/InteractiveUI.hs
+++ b/ghc/compiler/ghci/InteractiveUI.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: InteractiveUI.hs,v 1.72 2001/06/06 14:33:13 sewardj Exp $
+-- $Id: InteractiveUI.hs,v 1.73 2001/06/07 16:00:18 sewardj Exp $
 --
 -- GHC Interactive User Interface
 --
@@ -363,8 +363,10 @@ addModule _ = throwDyn (InstallationError ":add not implemented")
 setContext :: String -> GHCi ()
 setContext ""
   = throwDyn (CmdLineError "syntax: `:m <module>'")
-setContext m | not (isUpper (head m)) || not (all isAlphaNum (tail m))
+setContext m | not (isUpper (head m)) || not (all isAlphaNumEx (tail m))
   = throwDyn (CmdLineError ("strange looking module name: `" ++ m ++ "'"))
+    where
+       isAlphaNumEx c = isAlphaNum c || c == '_'
 setContext str
   = do st <- getGHCiState
        new_cmstate <- io (cmSetContext (cmstate st) str)
-- 
1.7.10.4