Speed isn't the only problem (although I think it's a pretty serious
one... Haml is already considerably slower than ERb). It's more or less
impossible to parse nested brackets using only Regular Expressions, so
something like "blah blah blah #{func {:arg => val}}," would break.
Also, for the same reason, Haml has a longstanding (although apparently
low-impact) bug where something like "%a{:href => person_url} Hi, }
there!" will break... your syntax would break there, as well. The only
way around this would be to build our own, pure-Ruby byte-by-byte
parser, which would further increase the time taken. So it's really not
feasible.
- Nathan
Jeffrey Hardy wrote:
>> But, I'd personally take a *few* ugly
>> inline instances in trade for clear and usable structure definitions.
>>
>
> I don't see this as a either/or problem. Ugliness must be rooted out.
> The inline capabilities of Haml are sadly lacking, and it's forced me
> to write some pretty ugly constructs. Not unlike Nathan's example:
>
> %p
> I went to the
> - succeed ',' do
> = shops
> so crossed the road
>
> I mean, come on. That's ugly. It's not Nathan's fault; there's just
> no elegant way to do this in Haml. I've been forced to perform
> similar view vandalism in much the same vein. And it hurts me. Haml
> is about beauty. (Haml is also about structure. I contend that ugly
> hanging constructs that are begging to be compacted make it difficult
> to read and work with the structure).
>
> Why not interpret #{} embedding tags anywhere in non-evaling lines,
> much in the same way that ERb allows <%= %>?
>
> I understand that scanning each line of the template looking for
> embedded code will result in a performance hit, but I say 'meh'. I'd
> rather have a speed decrease I'd never notice than ugly templates I
> have to look at every day. (Besides. I've never found Haml to be
> slow. Ever. Even in its pre-release days, before compilation support
> was added. If your app is slow, Haml's render time is hardly the
> bottleneck).
>
> So, anyways, am I the only one who thinks the following looks much
> better?
>
> %p I went to the #{shops}, so crossed the road.
>
> %blockquote
> I think that #{features[:inline_embedding]} would be a fabulous
> idea that would surely bring about world peace. Please read my
> crappy #{link_to 'blog', 'http://example.com'}, friend.
>
>
>
> /Jeff
>
>
> --
> Jeffrey Hardy (packagethief)
> http://unspace.ca
> http://quotedprintable.com
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