Re: Using include-file

On 2024-09-03 23:07, Ruvim wrote:

On 2024-09-03 10:50, Anton Ertl wrote:

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.

 Yes, overriding the system's file search mechanism used by "included" is a very interesting idea!

Another possible reason to not use `INCLUDED`:
| INCLUDED may allocate memory in data space before
| it starts interpreting the file.
So if this effect is unacceptable (for example, if you include part of a definition), then the solution is `INCLUDE-FILE`.
Also, `REQUIRED` does not load a file that was loaded by `INCLUDED`. `INCLUDE-FILE` is free of that too.
--
Ruvim