Racket users,
Many software applications use their location in the filesystem to
establish filesystem relationships between their executable file, their
configuration and their data. For this purpose, C provides the first
element of the string array provided to main, python provides __file__,
bash provides ${BASH_SOURCE[0]}, etc.
Racket strips said value before current-command-line-arguments receives
the subsequent command-line arguments from the operating system.
A related value can be pulled from syntax-source as follows:
(define-syntax (get-current-source stx)
(datum->syntax
(quote-syntax here)
(syntax-source stx)
stx))
Macro get-current-source works as intended if called at program startup
and the program is compiled on the fly with:
racket program.rkt
However get-current-source has the unintended property of memorizing the
original source location if the program is compiled with raco exe (and
then moved).
Is there a way in racket to obtain the path of the application program?
Jeff Henrikson
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