- From: Kang-Hao (Kenny) Lu <kanghaol@oupeng.com>
- Date: Fri, 05 Apr 2013 11:55:18 +0800
- To: Simon Sapin <simon.sapin@exyr.org>
- CC: "Tab Atkins Jr." <jackalmage@gmail.com>, www-style list <www-style@w3.org>
(13/04/04 18:13), Simon Sapin wrote: > Le 04/04/2013 02:06, Tab Atkins Jr. a écrit : >> I just added a COLUMN token to the Syntax draft, matching "||". It's >> needed for Selectors, so it can maintain LL(1). (Otherwise, seeing >> "*" followed by "|" is ambiguous until you look at the *next* token.) > > Hi, > > I’m not objecting, but shouldn’t LL(1) be only an implementation > concern? AFAICT, it is not detectable whether an implementation parses > "||" as a single token, or looks ahead for two delim tokens. x |/**/| y ? I agree that maintaining LL(1) isn't too important but I don't see much harm in introducing a new token either. Cheers, Kenny -- Web Specialist, Opera Sphinx Game Force, Oupeng Browser, Beijing Try Oupeng: http://www.oupeng.com/
Received on Friday, 5 April 2013 03:55:48 UTC