[antlr-interest] Re: Token Streams, multiple lexers - how does lexer access selector?
davidjpenton2002 <djplists at arrowsash.com>
djplists at arrowsash.com
Thu Dec 19 07:15:49 PST 2002
I may be able to avoid multiple lexers with work, but for now I find
it conceptually clearer to use them (maybe because I am familiar with
using lex states).
Is it "safe" to push and pop lexers using a selector object (as in
the example in the ref manual) from within a parser action instead of
from within a lexer rule?
- Dave -
--- In antlr-interest at yahoogroups.com, Terence Parr <parrt at j...>
wrote:
> On Wednesday, December 18, 2002, at 08:52 PM, David Penton wrote:
>
> > I am busy trying to set up multiple lexers to mimic lex/flex lexer
> > states.
>
> Often you don't need states as it's just another rule in ANTLR. I
use
> multiple lexers only for embedded languages like javadoc.
>
> Terence
> --
> Co-founder, http://www.jguru.com
> Creator, ANTLR Parser Generator: http://www.antlr.org
> Lecturer in Comp. Sci., University of San Francisco
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