- From: L. David Baron <dbaron@dbaron.org>
- Date: Tue, 11 Oct 2011 12:32:04 -0700
- To: François REMY <fremycompany_pub@yahoo.fr>
- Cc: Peter Beverloo <peter@lvp-media.com>, Paul Irish <paul.irish@gmail.com>, www-style@w3.org
On Tuesday 2011-10-11 20:48 +0200, François REMY wrote:
> Just a question: wouldn't it better to have a "full parser" that can
> recognize any piece valid CSS ?
>
> window.recognizeCSS("x::scrollbar {}"); // false
> window.recognizeCSS("* { width: 1px; }"); // true
> window.recognizeCSS("* { -unknown-property: 3 }"); // false
The problem with that approach is that a full parser has rules for
ignoring invalid things at certain points: for example, while
parsing a rule, invalid declarations are dropped; while parsing the
top level of a style sheet, invalid rules are dropped. (There are
further rules for media queries and for handling of errors inside
various types of @-rules.)
With an API like this, it's not clear which errors are handled by
dropping (as per the normal parsing rules) and which are handled by
having the API return false.
-David
--
𝄞 L. David Baron http://dbaron.org/ 𝄂
𝄢 Mozilla http://www.mozilla.org/ 𝄂
Received on Tuesday, 11 October 2011 19:32:36 UTC