[Haskell-cafe] Re: [web-devel] statically compiled css

[Michael Snoyman]

Quick update: I'm including the "Stylish" code in the hamlet package now,
and renaming it to "Camlet" (CSS-hamlet). I'm also including something
called "Jamlet", which doesn't do much besides variable interpolation. As
you might guess, it's for Javascript. I mention it at the end of my most
recent blog post[1].

Michael

[1] http://www.snoyman.com/blog/entry/typesafe-runtime-hamlet/

On Fri, Aug 6, 2010 at 1:25 PM, Michael Snoyman <michael at snoyman.com> wrote:

>
>
> On Fri, Aug 6, 2010 at 12:28 PM, Benedict Eastaugh <ionfish at gmail.com>wrote:
>
>> On 6 August 2010 09:19, Michael Snoyman <michael at snoyman.com> wrote:
>>
>> > After looking into sass a little bit, I've decided I like it ;). I see
>> the
>> > following benefits of implementing something sass-like in Haskell via
>> > quasi-quotation:
>> >
>> > * Compile-time guarantee of well-formedness.
>> > * The speed benefits of blaze-builder. Of course, this will still be
>> slower
>> >   than serving a static file.
>> > * Ability to use the same Haskell variables for both Hamlet and CSS.
>> >
>> > I've started a new repo on Github[1]; I'm tentatively calling the
>> project
>> > "stylish".
>>
>> This sounds pretty interesting. I wrote a Ruby tool called Stylish [1]
>> a couple of years ago to solve a similar set of problems, and have
>> occasionally wondered about rewriting it in Haskell. I look forward to
>> seeing what you come up with.
>>
>> One potentially useful feature is generating code that requires
>> browser prefixes (-webkit-border-radius etc.). There's also potential
>> for generating minified versions of the code, concatenating multiple
>> stylesheets etc.—it's a lot easier to do this stuff if you can
>> programmatically manipulate the stylesheet at run-time. Embedding
>> assets (graphics) as data URIs is another thing; have a look at how
>> something like Jammit [3] does this.
>>
>> As far as the border-radius kind of stuff: the approach I'm taking to
> mixins should make it possible to write a plain old Haskell function to
> output multiple border-radius statements. I might even include such a mixin
> in the main package.
>
> Regarding concatenating stylesheets: I believe that would have to be
> handled at the level *above* Stylish; Yesod, for example, automatically
> concatenates all style statements added via the addStyle function.
>
> There's also a Firefox and Thunderbird extension [2] called Stylish.
>> Obviously you're free to call your project whatever you wish; I just
>> thought I should let you know.
>>
>> I'm open to naming suggestions. Here's a few other ideas I'd had:
>
> * sasslet: I don't really like too much, but makes clear the connection to
> Hamlet and Sass.
> * csser/cssar: pronounced "Caesar," might give Shakespeare fans something
> to chuckle at.
>
> As it stands, I'm leaning fairly strongly towards including Stylish in the
> Hamlet package.
>
> Michael
>
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