Assignment entities

[fat]

This is my attempt at adding support for filter properties - which currently can't be parsed.

This allows them to be parsed and also adds support for passing variables directly into them - which is pretty neat and I think a lot nicer than having to use % and e

To get this done I had to add a new entity type called "assignment" and also allow the call parser to detect progid: types.

I added a few tests where you can see it in action - all tests still pass and the benchmarks are consistent with master.

I also built a browser version and tried that with great success :)

[matthew-dean]

What are you talking about? Filters can be parsed. There's an example right on lesscss.org. And you can add variables into them. ^_^

[fat]

Actually you're incorrect. Currently you have to escape filters using something like this (straight from lesscss.org):

filter: ~"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.png')"

If you want to use variables you have to use the % and e substitution hack. Give it a try.

[fat]

If it's not clear, this pull request allows you to write them out like this:

filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.png')

No quotes, not escaping. Just regular css.

you can also use variables and other entities inline just like other css properties in less:

filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src=@mySrcVar)

It's a bummer right now that you have to escape everything because that means that the amazing less tokenizer that @cloudhead wrote can't be used to parse regular css.

[matthew-dean]

Interesting. I don't use filters so I've never tried it out.

[fat]

We need this in bootstrap. filter's for cross browser gradients/alpha.

[matthew-dean]

I suppose. Only if you're not willing to use CSS3Pie. ;-)

[cloudhead]

Thanks love!

Also, don't forget you can interpolate inside strings "foo @{bar}" since 1.1, instead of using %("foo %s", @bar).

[fat]

hooray! thank you sir!!