ch.gosch at googlemail.com
Fri Aug 6 15:02:48 EDT 2010
Ah wait ... I saw that I can get the input stream with
as it is part of the state. If that is the currently remaining stream, I
could use any functions from ByteString
to skip over some parts or do whatever with them, and update the state to
the last position after the part I want
Am I correct there, or am I then getting something in Parsec out of sync?
Guess I'll just try :)
2010/8/6 Patrick LeBoutillier <patrick.leboutillier at gmail.com>
> I started using Data.Binary yesterday for a project and it's nice. I'm
> not sure it's possible, but perhaps you could switch tools along the
> - Parse the ASCII bit with Parsec ;
> - Give the remaining ByteString to Data.Binary for the binary part ;
> - Switch back and forth as required.
> On Fri, Aug 6, 2010 at 5:03 AM, C Gosch <ch.gosch at googlemail.com> wrote:
> > 2010/8/6 Dean Herington <heringtonlacey at mindspring.com>
> >> At 11:42 PM +0200 8/5/10, C Gosch wrote:
> >>> Hi,
> >>> does anyone here know their way around in Parsec?
> >>> I'm trying to parse a file which contains some binary parts too.
> >>> I have been using Parsec 3.0.1 to parse the first ASCII part, but all
> >>> parsers are
> >>> returning Char type tokens, so it would not work with the binary parts
> >>> is there any way to do this?
> >>> I am using Text.Parsec.ByteString.Lazy.
> >>> Note that I'm new to Haskell and Parsec, and doing this within a small
> >>> project that
> >>> I basically do to get a grip on Haskell (and Parsec, because it appears
> >>> to be really nifty and I want to learn more about it).
> >>> Thanks for any hints,
> >>> Christian
> >> Parsing binary parts of a file is not inherently a problem. A parser
> >> return any type; different parsers in your application will likely
> >> different types.
> >> If you include some code we'll be able to help you more specifically.
> >> Dean
> > You're right, I probably used the wrong words .. I meant that apparently
> > tokens Parsec uses are of type Char, and I would actually at some point
> > like to continue parsing, but using different tokens. Sorry if I still
> > it wrong, I'm new :) I can post some code later, as I don't have it here
> > right now.
> > Cheers,
> > Christian
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> Patrick LeBoutillier
> Rosemère, Québec, Canada
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