[webvtt] Allow FF alongside space and tab in the syntax

zcorpan has just created a new issue for 
https://github.com/w3c/webvtt:

== Allow FF alongside space and tab in the syntax ==
https://w3c.github.io/webvtt/#file-structure

> U\+0020 SPACE characters or U\+0009 CHARACTER TABULATION \(tab\) 

The parser allows U+000C FORM FEED here (and in other places, just not
 right after the signature).

Fixing #221 properly would mean that almost every time the parser had 
seen a FF, it would be a syntax violation. But that seems a bit silly.
 It seems saner to define "whitespace" as space, tab and FF, in the 
syntax.

Note: not suggesting any change to the parser.

Please view or discuss this issue at 
https://github.com/w3c/webvtt/issues/271 using your GitHub account

Received on Wednesday, 18 November 2015 23:35:56 UTC