Re: [Haskell-cafe] [Haskell] ANNOUNCE: haste-perch

I don't know the implementation, but as far as I know, creating html with javascript dom api is faster than creating textual html and then using that. And also if blaze-html uses text (or bytestring?), it is not compilable with haste On Wed, Jun 18, 2014 at 09:11:20AM -0700, Andrew Gibiansky wrote:

Could you elaborate on how this is better/different from blaze-html?

I'm a bit confused - is it just the same thing but works with Haste, while blaze-html doesn't? What's the main idea?

Thanks! Andrew

On Wed, Jun 18, 2014 at 7:02 AM, Alberto G. Corona wrote:

...

Hi,

haste-perch defines builder elements (perchs) for Haste.DOM elements that are appendable, so that dynamic HTML can be created in the client in a natural way, like textual HTML, but programmatically and with the advantage of static type checking. It can be ported to other haskell-js compilers.

http://hackage.haskell.org/package/haste-perch

This program, when compiled with haste:

main= do withElem "idelem" $ build $ do div $ do div $ do p "hello" p ! atr "style" "color:red" $ "world"

return ()

Creates these element:

<div id= "idelem"> <-- was already in the HTML <div> <div> <p> hello </p> <p style= "color:red"> world </p> </div> </div> </div>

Since the creation is in the browser, that permit quite dynamic pages for data presentation, and interctive textual (a.k.a "serious") applications and, in general the development of client-side web frameworks using haskell with the haste compiler.

See the README in the git repository:

https://github.com/agocorona/haste-perch

-- Alberto.

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