#1215: GHC fails to respect the maximal munch rule while lexing "qualified
reservedids"
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Reporter: Stefan O'Rear <[EMAIL PROTECTED]> | Owner: simonmar
Type: bug | Status: closed
Priority: low | Milestone: 6.8
Component: Compiler (Parser) | Version: 6.6
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Easy (1 hr)
Os: Unknown | Testcase:
Architecture: Unknown |
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Changes (by simonmar):
* resolution: => fixed
* status: new => closed
Comment:
Fixed:
{{{
Tue Jul 24 14:04:17 BST 2007 Simon Marlow <[EMAIL PROTECTED]>
* FIX #1215: GHC fails to respect the maximal munch rule while lexing
"qualified reservedids"
I didn't actually fix this to respect Haskell 98, instead I changed it
to follow the proposal for Haskell':
http://hackage.haskell.org/cgi-bin/haskell-
prime/trac.cgi/wiki/QualifiedIdentifiers
Rationale:
- We didn't respect Haskell 98 with respect to qualified symbols
either
- The Haskell' change makes things much cleaner
- Obeying the Haskell 98 spec literally has some unintended
consequences (e.g. M.where must lex as "M.wher" "e")
- Any programs that compiled before this change and do not compile
after it were illegal according to Haskell 98 anyway.
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1215>
GHC <http://www.haskell.org/ghc/>
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