[Haskell-cafe] Parsec line number off-by-one

Ben Gamari bgamari.foss at gmail.com
Wed Sep 21 14:31:40 CEST 2011

On Wed, 21 Sep 2011 11:27:31 +0200, Christian Maeder <Christian.Maeder at dfki.de> wrote:
> Hi,
> 1. your "lookAhead" is unnecessary, because your items (atomNames) never 
> start with "%".
I see.

> 2. your "try" fails in (line 12, column 1), because the last item (aka 
> atomName) starts consuming "\n", before your eol parser is called.
Ahh, this is a good point. I for some reason seeded the thought in my
mind that spaces takes the ' ' character, not '\n'.

> So rather than calling spaces before every real atom, I would call it 
> after every real atom and after your formatDecl (so before your linesOf 
> parser).
Excellent solution. I appreciate your help. That would have taken me
quite a bit of head-banging to find.


- Ben

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