Re: [q-lang-users] New stuff in cvs: multichar ops, views

[Albert G. <Dr....@t-...>]

Rob Hubbard wrote:
> Alternatively, is there any way of issuing a warning if the lexer's
> action is affected by the presence of an operator definition when
> parsing a sequence of punctuation characters to form a symbol? Again,
> probably not, as I can't see a good rule or heuristic to distinguish
> likely intended parses from unintended ones...

I thought about this myself, but to do this right the lexer would have
to look ahead in the input and perform a considerable amount of
backtracking, which would be a major performance killer. So I decided
against it.

Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr....@t-..., ag...@mu...
WWW:    http://www.musikinformatik.uni-mainz.de/ag