Path: news.daimi.aau.dk!jlk
From: jlk@daimi.aau.dk (J|rgen Lindskov Knudsen)
Newsgroups: comp.lang.beta
Subject: Re: How to immediately compile/load patterns
Date: 6 Mar 1996 09:01:40 GMT
Organization: DAIMI, Computer Science Dept. at Aarhus University
Lines: 59
Message-ID: <4hjk9k$s7g@gjallar.daimi.aau.dk>
References: <4hf6pjINNbul@hood.sps.mot.com>
Reply-To: jlknudsen@daimi.aau.dk (Jorgen Lindskov Knudsen)
NNTP-Posting-Host: lithium.daimi.aau.dk

In <4hf6pjINNbul@hood.sps.mot.com> Thus spake moss@risc.sps.mot.com (Matthew Moss):

>I am experimenting with an environment where I need to compile a pattern
>located in some text file and immediately be able to access that pattern
>in the running program. Something like this:

>	CodeToPattern:
>	  (#
>	     (*
>	      * T: filename of text file of a BETA pattern
>	      * P: pattern of compiled text in file T
>	      *)
>	     
>	     T: ^Text; P: ##Object;
>	  enter T
>	  do
>	     ...
>	  exit P##
>	  #);

>which would be used like:

>	filename: @Text;
>	pattern: ##Object;
>	...
>	filename[]->CodeToPattern->pattern##;
>	...

>My first guess would be to read the COFF information out of the .o file
>produced from the compile. But since I plan on adding the pattern to
>a persistent store, maybe there is an easier way via a temporary PS.
>has anyone done this before? Thanx...

In the current implementation, this is not possible.  A lot of
underlying architectorial issues pop up here, making this difficult.
Issues like type checking, dynamic link/load, etc.

However, we are in fact looking into these issues in some research
projects, and hopefully, we will be able to offer this kind of dynamic
facilities sometime in the future (no promises :-)

Repards,

   Jorgen Lindskov Knudsen, Mjolner Informatics
   Science Park Aarhus, Gustaw Vieds Vej 10, DK-8000 Aarhus C, DENMARK
   E-mail: jlknudsen@mjolner.dk, Phone: +45 86 20 20 00, Fax: +45 86 20 12 22

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