New __FILE_DIR__ trait?
Jonathan Marler via Digitalmars-d
digitalmars-d at puremagic.com
Thu Jul 21 19:08:44 PDT 2016
I've got some batch scripts I wanted to convert to D. I'd like
users to run them using rdmd, so it's obvious where the source
code lives and easy to modify. The problem is that the batch
scripts I want to convert rely on the %~dp0 variable, which
contains the path to the batch script itself. Note that this
variable is different then the current directory. I haven't been
able to find a nice way to do this in D. (Note that thisExePath
won't work because rdmd compiles the code to a temporary
directory, which makes sense.)
Having known about the special __FILE__ and __LINE__ traits, I
figured there might be a trait for the file directory as well,
but it appears there is none. I'd like to see what people think
about adding a new trait for this. Maybe something like
__FILE_DIR__? This would contain the directory of the
source-code file it appears in. Also if this trait was added,
one could argue that a trait containing the path and the filename
should also be added, maybe something like __FILE_FULL_PATH__?
P.S. If you know of an existing solution to this problem please
let me know.
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