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Groups > comp.lang.forth > #56190

Re: Recognizers : Search order for recognizers

From Alex <alex@rivadpm.com>
Newsgroups comp.lang.forth
Subject Re: Recognizers : Search order for recognizers
Date 2017-03-23 16:56 +0000
Organization A noiseless patient Spider
Message-ID <ob0uig$8is$1@dont-email.me> (permalink)
References <ob0u20$6ml$1@dont-email.me>

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On 3/23/2017 16:47, Alex wrote:
> Search order for recognizers.
>
> GET-RECOGNIZERS ( stack-id -- rec-n .. rec-1 n ) RECOGNIZER
> rec-1 identifies the recognizer that is called first and rec-n the word
> that is called last.
>
> SET-RECOGNIZERS ( rec-n .. rec-1 n stack-id -- ) RECOGNIZER
> Set the recognizer stack identified by stack-id with a new set of
> parsing words identified by the execution tokens rec-n .. rec-1. rec-1
> will be the parsing word that is called first, rec-n will be the last one.
>
> For instance where rec:tick recognizes words of the form 'XXXX and
> returns the tick of XXXX;
>
> ' rec:tick get-recognizers 1+ set-recognizers
>
> Then
>
> : special  20 ;
> : 'special 10 ;
>
> 'SPECIAL . will print XT of SPECIAL, not 10. This is unintuitive.
>

Ignore this. I've just found a bug regression and this is not the case.

-- 
Alex

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Thread

Recognizers : Search order for recognizers Alex <alex@rivadpm.com> - 2017-03-23 16:47 +0000
  Re: Recognizers : Search order for recognizers Alex <alex@rivadpm.com> - 2017-03-23 16:56 +0000
    Re: Recognizers : Search order for recognizers Matthias Trute <matthias.trute@gmail.com> - 2017-03-23 11:59 -0700

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