Implement LANG attribute handling in layout so that the user specified font can be used for drawing according to the LAGN attribute. This is needed for message view to draw the user specified font instead of always using the one for unicode (bug 26182). Please add more comments or change the summary if necessary as I am not familiar with this area.

This would also help to diambiguate CJK and pick appropriate fonts for any Unicode page.

What is the algorithm for picking a font when we have both the charset and some sort of lang info? Is this just a problem for the unicode charset?

That problem is mostly just for Unicode-based charsets. The LANG attribute should be given precedence, since it can be set at a fine-grained level (for any element), while charset is for the whole document.

Target M16, after Beta 1 branch.

Checked in the code.

Test cases are located in http://babel/tests/browser/html/lang Verified this in 2000-05-22-08 build.