Re: Using include-file

Ruvim <ruvim.pinka@gmail.com> writes:

Do you know practical cases of using "include-file" in programs?

One way I am thinking about is to implement INCLUDED etc.  Systems
deal differently with relative filenames for INCLUDED, with less
differences for OPEN-FILE.  So if I want to implement a certain
handling of relative filenames for INCLUDED in order to get rid of
system differences, one way to do it is to do it for OPEN-FILE and
then perform INCLUDE-FILE.

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?

Heinz Schnitter implemented Open Network Forth, a distributed system,
where the parts communicated by sending Forth source code to each
other.  One could implement that by having network connections
(telnet-style or ssh-style) between the parts, and the receiver could
INCLUDE-FILE the file-id that represents his end of the connection.
However, Open Network Forth was written around 1984, long before
INCLUDE-FILE was standardized.  Bernd Paysan uses ideas from it in his
work, inclluding sending Forth commands between tasks, but AFAIK does
not use INCLUDE-FILE for that.

- anton
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M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
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