Re: [cssparser-developers] Migrating from CSS4J

[David S. <dav...@gm...>]

Hi Vincent,

As Ronald says, cssparser would have to work in conjunction with other code
to apply the style to the DOM. I've not used it myself, but would something
like CSSelly (http://jodd.org/doc/csselly/) do the job?

Best regards,
David

On 17 May 2017 at 12:24, Ronald Brill <rb...@rb...> wrote:

> Hi Vincent,
>
> thanks for considering CSSParser as alternative solution.
> CSSParser is a smaller/more focused solution; only parsing the css into
> some tree sturcture is the current focus of the project. There is no
> support to parse (X)Html and also no
> help for mixing the two trees into one.
> As far as i know there are two main use cases for CSSParser at the moment:
> * parsing a css for error detection or optimization and optional writing
> back the optimized version (The cleanup/optimization is not part of
> CSSParser)
> * parsing a css to support html processing
>
> The second case is what is done by HtmlUnit (i'm also involved with this
> project). HtmlUnit uses NekoHtml to parse (X)Html and CSSParser for css.
> Then HtmlUnit uses both
> informations to simulate real browser behavior.
> If you like i can think a bit if your use case is someting that can be
> done with HtmlUnit - give me a sign and i will have a look ;-)
>
> Outside of this i'm a bit curious about your case. Usually the css is
> separated from the Html by idea. Why you like to merge this?
>
>         RBRi
>
> On Tue, 16 May 2017 18:18:56 +0200 Vincent Massol wrote:
> >
> >Hi guys,
> >
> >On the XWiki project (http://xwiki.org) we're currently using CSS4J but
> it's painful (several bugs, no issue tracker, no mailing list) so we're
> considering migrating to another
> library and we're looking at CSSParser.
> >
> >We use CSS4J to do the following: apply some CSS content to XHTML.
> >
> >For example:
> >
> >CSS:
> >"span { color:red; }"
> >
> >XHTML:
> >...
> ><div id="xwikicontent">
> >  <p><span style="background: white;">Hello</span></p>
> ></div>
> >
> >
> >Result:
> >...
> ><div id="xwikicontent">
> >  <p><span style="background: white; color: red;">Hello</span></p>
> ></div>
> >
> >
> >Is that possible to do with CSSParser?
> >
> >FTR this is our code where we use CSS4J:
> >*
> https://github.com/xwiki/xwiki-platform/blob/
> 30d27eb8ec23f7c5a28ca505a75f1c73f8fe0073/xwiki-platform-
> core/xwiki-platform-oldcore/src/main/java/com/xpn/xw
> iki/pdf/impl/PdfExportImpl.java#L460-L460
> >*
> https://github.com/xwiki/xwiki-platform/blob/
> 30d27eb8ec23f7c5a28ca505a75f1c73f8fe0073/xwiki-platform-
> core/xwiki-platform-oldcore/src/main/java/com/xpn/xw
> iki/pdf/impl/PdfExportImpl.java#L506
> >
> >Thanks
> >-Vincent
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-- 
David