[Haskell-cafe] Parsec question
Erik de Castro Lopo
mle+cl at mega-nerd.com
Tue Dec 23 04:12:20 EST 2008
Hi all,
I'm rather new to Haskell and I'm diving right into the deep end
writing a parser using Parsec.
In particular I'm using Text.ParserCombinators.Parsec.Language to do
some of the heavy lifting and have this:
import qualified Text.ParserCombinators.Parsec.Language as L
import qualified Text.ParserCombinators.Parsec.Token as T
lexer = T.makeTokenParser L.emptyDef
{ L.identStart = letter <|> char '_',
L.identLetter = alphaNum <|> char '_',
....
identifier :: CharParser st String
identifier = T.identifier lexer
and now I need to parse things "this.that.the.other". I'd like to have
a function with the following signature:
qualifiedIdentifier :: CharParser st [ String ]
which should return [ "this", "that", "the", "other" ] and write it in
terms of identifier and thats where I'm stuck.
Anyone care to whack me with the cluestick?
Cheers,
Erik
--
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Erik de Castro Lopo
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"If you don't have freedom as a principle, you can never see a reason not
to make an exception." -- Richard Stallman.
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