I noticed that StateT can enclose IO actions for instance. So you are saying
the whole Parsec library would need to be rewritten as something like a ParsecT
transformer monad for this to work? If this is the case I suppose I will stick
with returning my list of include files. - Greg
- Original Message
From: Bulat Ziganshin <[EMAIL PROTECTED]>
To: Gregory Propf <[EMAIL PROTECTED]>
Cc: [email protected]
Sent: Saturday, August 11, 2007 11:33:00 PM
Subject: Re: Fw: [Haskell-cafe] IO within parser
Hello Gregory,
Sunday, August 12, 2007, 9:32:04 AM, you wrote:
>> I've been struggling with writing a parser that needs to parse include
>> files within source files.
Parsec can't accomplish with without using unsafePerformIO because
it's monad is pure. it's algorithmically impossible to have any i/o
actions inside it. there was plans to rewrite Parsec in
monad-transformer way and afair it was even one of GSOC projects
--
Best regards,
Bulatmailto:[EMAIL PROTECTED]
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