Re: [web-devel] Type-safe URL handling

On Mon, Mar 29, 2010 at 11:28 AM, Chris Eidhof wrote:

-chris

On 29 mrt 2010, at 18:18, Jeremy Shaw wrote:

...

On Mon, Mar 29, 2010 at 8:47 AM, Michael Snoyman wrote: Jeremy,

We'd been discussing the PathInfo class previously; I understand now what you're trying to achieve with it, but I think for a lot of use cases using a parser like that will be unnecesary. For those cases, I'd hate to introduce a parsec dependency, especially given the 2/3 split we're dealing with right now.

Well, parsec is in the haskell platform, so it's really a question of can be it implemented so that it works with both 2 and 3.

I'm on the latest 6.12 platform, and I only have parsec-2.1 installed. Which packages use parsec-3?

in web-routes, the PathInfo module now contains a function p2u :: Parser a

-> URLParser a so that you can lift a Char parser to be a URL parser: testp :: URLParser (Char, String, String) testp = do segment "foo" st <- p2u (char 'h' >> char 'o') sg <- anySegment sg' <- anySegment return (st,sg, sg') but I have not figured out how to implement p2u so that it works under parsec 2 & 3. Maybe I'll just leave it out for now, but I am doing some exploration first. - jeremy