Re: [eclipse-incubator-e4-dev] TK-UI parser - why Flute?

[Ralf Sternberg <rsternberg@xxxxxxxxxxxxxx>]

Hi Angelo,

interesting. I also found another shortcoming of the batik parser: It 
doesn't provide a Locator to obtain text ranges for property values, 
which can be a problem when CSS files should be modified (we need this 
in the RAP Theme Editor). Steadystate provides a Parser#getLocator 
method, I didn't find anything similar in Flute.

What about the license of Flute? I recall this is a W3C license. Is this 
compatible? If there is a chance to use this parser with Eclipse, I'd 
like to have a closer look, too.

Best Regards, Ralf

Angelo zerr wrote:
> Hi Kevin,
>
> TK-UI CSS parser use Flute parser by default but you can use another SAC 
> Parser if you want.
> Today I have founded 3 SAC parser implementation : Batik, Flute 
> easystate which implement CSS2 specification but not CSS3.

with easystate you mean steadystate, don't you?

> Into TK-UI I wanted manage namespace described into CSS3 specification, 
> to write selector by setting package.
> Imagine you have two classes Label
>
> org.eclipse.swt.widgets.Label and my.Label
>
> If you want disting selector between two Label, you can use CSS3 
> namespace and write his CSS :
>
> @namespace swt "org.eclipse.swt.widgets";
> @namespace my "my";
>
> swt|Label {
>    color;red;
> }
>
> my|Label {
>    color;red;
> }
>
> So I try to update SAC Parser Batik, Flute...and I found Flute was the 
> easier to update, because Flute is based on JavaCC
> where you have Parser.jj JavaCC file which desribe CSS2 grammar. I have 
> updated this file to manage CSS3 namespace.
> See customized Flute parser at 
> http://tk-ui.svn.sourceforge.net/svnroot/tk-ui/org.akrogen.tkui.css/trunk/org.w3c.flute
>
> Flute jar into distribution is 1-3 (it's my flute parser). The real 
> flute parser is 1-2 (2 means support CSS2).
>
> Regards Angelo
>
>
>
>
>
> I have used Flute Parser because I have improved it to manage CSS3 
> namespace.
>
> 2008/8/8 Kevin McGuire <Kevin_McGuire@xxxxxxxxxx 
> <mailto:Kevin_McGuire@xxxxxxxxxx>>
>
>
>     Hi Angelo,
>
>     I was looking at your TK-UI css.core and noticed it uses the Flute
>     parser.  I was wondering if you could discuss why you chose this
>     particular SAC parser?  (vs. batik for example).
>
>     Regards
>     Kevin
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