Groups > comp.lang.forth > #132092

Re: Using include-file

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From	Gerry Jackson <do-not-use@swldwa.uk>
Newsgroups	comp.lang.forth
Subject	Re: Using include-file
Date	Wed, 4 Sep 2024 10:54:48 +0100
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On 02/09/2024 21:11, Ruvim wrote:
> Do you know practical cases of using "include-file" in programs?
> 
> I can't imagine how this word could be used in standard programs.
> 
> Only one idea: to skip BOM (byte-order mark) before include the file 
> contents.
> 
> Using other system-specific means, this word can probably be used to 
> organize inter-process communication: when a file descriptor (e.g. a 
> pipe) is passed from one process to another and used as the input 
> source.  But why do you need to load Forth code this way?
> 

I've used it to redefine INCLUDED

: included  ( ... caddr u -- ... )
    r/o open-path-file throw include-file
;

where OPEN-PATH-FILE takes a string specifying a list of alternative 
relative paths to Forth source files which it tries in turn to open. It 
does this by creating an absolute directory path and calls OPEN-FILE. If 
an open succeeds it returns the file-id to be included by INCLUDE-FILE. 
If no relative path succeeds an exception is thrown.

I've used it to test a program on several different Forth systems, each 
of which has its own way of handling relative directory paths but they 
all work with an absolute path.

-- 
Gerry

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Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-09-03 00:11 +0400
  Re: Using include-file mhx@iae.nl (mhx) - 2024-09-02 21:22 +0000
    Re: Using include-file mhx@iae.nl (mhx) - 2024-09-03 05:38 +0000
      Re: Using include-file rt4all@hetnet.nl (rt) - 2024-11-09 08:29 +0000
        Re: Using include-file mhx@iae.nl (mhx) - 2024-11-09 12:06 +0000
          Re: Using include-file Stephen Pelc <stephen@vfxforth.com> - 2024-11-09 18:13 +0000
            Re: Using include-file dxf <dxforth@gmail.com> - 2024-11-10 13:54 +1100
          Re: Using include-file rt4all@hetnet.nl (rt) - 2024-11-10 13:47 +0000
  Re: Using include-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-09-03 06:50 +0000
    Re: Using include-file albert@spenarnc.xs4all.nl - 2024-09-03 10:23 +0200
      Re: Using include-file mhx@iae.nl (mhx) - 2024-09-03 11:54 +0000
        Re: Using include-file sjack@dontemail.me (sjack) - 2024-09-03 15:28 +0000
          Re: Using include-file dxf <dxforth@gmail.com> - 2024-09-04 11:36 +1000
      Re: Using include-file dxf <dxforth@gmail.com> - 2024-09-04 16:44 +1000
    Re: Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-09-03 23:07 +0400
      Re: Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-10-23 22:43 +0400
        Re: Using include-file anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-10-24 06:32 +0000
          Re: Using include-file albert@spenarnc.xs4all.nl - 2024-10-24 11:30 +0200
          Re: Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-10-26 09:19 +0400
  Re: Using include-file Gerry Jackson <do-not-use@swldwa.uk> - 2024-09-04 10:54 +0100
    Re: Using include-file Gerry Jackson <do-not-use@swldwa.uk> - 2024-09-04 11:09 +0100
  Re: Using include-file dxf <dxforth@gmail.com> - 2024-09-04 21:13 +1000
    Re: Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-09-17 18:33 +0400
  Re: Using include-file minforth@gmx.net (minforth) - 2024-10-24 12:44 +0000
    Re: Using include-file Ruvim <ruvim.pinka@gmail.com> - 2024-10-27 21:31 +0400
      Re: Using include-file minforth@gmx.net (minforth) - 2024-10-27 22:32 +0000

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