[antlr-interest] Re: Token Streams, multiple lexers - how does lexer access selector?

[davidjpenton2002 <djplists at arrowsash.com>]

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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