#3741: ghci misinterprets "early" unicode characters
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Reporter: brian | Owner: igloo
Type: merge | Status: new
Priority: normal | Milestone: 6.12.2
Component: Compiler (Parser) | Version: 6.10.4
Resolution: | Keywords:
Difficulty: | Os: Unknown/Multiple
Testcase: | Architecture: Unknown/Multiple
Failure: GHC rejects valid program |
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Changes (by simonmar):
* owner: simonmar => igloo
* type: bug => merge
Comment:
Fixed:
{{{
Thu Dec 10 16:09:09 GMT 2009 Simon Marlow <[email protected]>
* Fix #3741, simplifying things in the process
The problem in #3741 was that we had confused column numbers with byte
offsets, which fails in the case of UTF-8 (amongst other things).
Fortunately we're tracking correct column offsets now, so we didn't
have to make a calculation based on a byte offset. I got rid of two
fields from the PState (last_line_len and last_offs).and one field
from the AI (alex input) constructor.
}}}
This relies on Igloo's column number changes, which are apparently not in
the 6.12 branch though. It might be possible to merge this by just
modifying advanceSrcLoc, without merging in the rest of the column number
changes.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3741#comment:2>
GHC <http://www.haskell.org/ghc/>
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