have you considered using one of the many amazing HTML parsers on hackage?
If the goal is to just get the HTML comments, that might be a much more effective use of your time -- Carter Tazio Schonwald On Friday, March 16, 2012 at 4:55 PM, Joseph Bozeman wrote: > Hey everyone, I'm hoping someone can point me in the right direction. > > The regex-pcre package exports (=~) and (=~~) as two useful infix functions. > They're great! The only problem is, they are a positive match for a regex. I > have a file that contains HTML comments (it was generated in Word) and I > really just want the barest text. I already have a function that strips out > all the tags, and I have a function that finds all the links and sticks those > in another file for later perusal. > > What I'd like is advice on how to implement the (!~) and (!~~) operators. > They should have the same types as (=~) and (=~~). I'm stuck, though. Here's > the source for both of those functions: they depend on Text.Rege.PCRE > package. > > (=~) :: (RegexMaker > (http://hackage.haskell.org/packages/archive/regex-base/0.93.2/doc/html/Text-Regex-Base-RegexLike.html#t:RegexMaker) > Regex > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:Regex) > CompOption > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:CompOption) > ExecOption > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:ExecOption) > source, RegexContext > (http://hackage.haskell.org/packages/archive/regex-base/0.93.2/doc/html/Text-Regex-Base-RegexLike.html#t:RegexContext) > Regex > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:Regex) > source1 target) => source1 -> source -> target > (=~) x r = let q :: Regex q = makeRegex r in match q x > > (=~~) :: (RegexMaker > (http://hackage.haskell.org/packages/archive/regex-base/0.93.2/doc/html/Text-Regex-Base-RegexLike.html#t:RegexMaker) > Regex > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:Regex) > CompOption > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:CompOption) > ExecOption > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:ExecOption) > source, RegexContext > (http://hackage.haskell.org/packages/archive/regex-base/0.93.2/doc/html/Text-Regex-Base-RegexLike.html#t:RegexContext) > Regex > (http://hackage.haskell.org/packages/archive/regex-pcre/0.94.2/doc/html/Text-Regex-PCRE-Wrap.html#t:Regex) > source1 target, Monad > (http://hackage.haskell.org/packages/archive/base/4.5.0.0/doc/html/Control-Monad.html#t:Monad) > m) => source1 -> source -> m target > (=~~) x r = do (q :: Regex) <- makeRegexM r matchM q x > What I figured I could do was find a function that was the inverse of "match" > and "matchM", but I can't find any in the docs. I really hope I don't have to > implement that, too. I'm still new at this, and that seems like it would be > over my head. > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > >
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