1021539 - fix parsing of obscure cases of escaped font family names

Status: NEW

(Core :: CSS Parsing and Computation, defect, P5)

Description

[John Daggett (:jtd)]

From bug 280443, comment 75
https://bugzilla.mozilla.org/show_bug.cgi?id=280443#c75

> > > > -  // { namelist: "\\,\\;", single: true },
> > > > -  // { namelist: "\\{", single: true },
> > > > -  // { namelist: "\\{\\;", single: true },
> > > > -  // { namelist: "\\}", single: true },
> > > > -  // { namelist: "\\}\\;", single: true },
> > > 
> > > Why do these tests with the escaped symbols not work?  Or are they invalid?
> > 
> > I don't think these are valid idents, so I don't think they are valid as
> > part of a font family name. Other browsers spit out syntax errors for these
> > also.
> 
> I think they are, according to css-syntax.  See the "\" case in
> http://dev.w3.org/csswg/css-syntax/#consume-a-token.  Please file a
> followup for this (although I am surprised that doesn't work already).

Need to figure out whether cases like the ones below are invalid syntax or not:

  font-family: \,;
  font-family: \{;
  font-family: \};