[M3devel] finding a file

[Mika Nystrom]

Yes, the first variant is "standard m3."

My Scheme interpreter has some functions implemented in Scheme, stored
in an scm file.  In fact it's a whole package, whose m3makefile is
as follows:

import ("libm3")

resource ("m3.scm")
resource ("basic-defs.scm")
resource ("hashtable.scm")
resource ("set.scm")
resource ("struct.scm")

bundle ("SchemeDefsBundle")

library ("scheme-lib")

In the main part of the program I then do:

VAR schemeDefs := SchemeDefsBundle.Get();

Bundle.Get(schemeDefs, "struct.scm")

which returns NIL if that bundle doesn't exist, and
the TEXT otherwise.

    Mika



 

hendrik at topoi.pooq.com writes:
>I'm guessing there's probably a well-known, more-or-less standard way to 
>handle the following problem.  So before I roll my own (not a difficult 
>task), I thought I'd ask what the normal techniques are, and 
>whether there are already ready-made tools for this somewhere in the 
>Modula 3 codebase.  
>
>I have a file that has to be read by a program under development.  
>Conceptually, the file is part of the program (it contains 
>boilerplate that has to be copied (at present, anyway; later I may 
>need to make substitutions) into the program's output).
>
>The question is how to find it.  So far I have two ideas.
>
>(1) use a preprocessor to turn the file contents into the Modula 3 
>source code for a module with a humongous initialized character string.  
>How do I specify this in an m3makefile?  It would have to be able to 
>compile the preprocessor as well as run it to create further Modula 3 
>code that it would then compile.
>
>or
>
>(2) Find a standard place for the file, possible relative to the 
>location of the executable.  (At any time I may have several versions of 
>this code -- such as a production and a development version)  Is there 
>well-known code for finding the executable?
>
>or
>
>(3) At compile time, have a parameter that gets copied into the 
>generated executable that says where these files will be at 
>execution time.  But how to I embed compile-time parameters into 
>Modula 3 code?
>
>-- hendrik