[ clisp-Feature Requests-3124233 ] *args* omits script name (if any)

[SourceForge.net <no...@so...>]

Feature Requests item #3124233, was opened at 2010-12-01 05:55
Message generated for change (Comment added) made by haible
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=351355&aid=3124233&group_id=1355

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
>Category: Extend ANSI CL
Group: None
>Status: Closed
Resolution: Wont Fix
Priority: 5
Private: No
Submitted By: Andrew Pennebaker (mcandre)
Assigned to: Bruno Haible (haible)
Summary: *args* omits script name (if any)

Initial Comment:
Scripting with Common Lisp would be a lot easier if *args* included the lisp file loaded by clisp.

E.g., ./myscript.cl and clisp.cl would have *args* => ("myscript.cl")

One workaround is to use shebang trickery. http://speely.wordpress.com/2010/11/27/writing-scripts-with-common-lisp/

----------------------------------------------------------------------

>Comment By: Bruno Haible (haible)
Date: 2010-12-11 16:51

Message:
I agree with Sam. The piece of code that you pointed to
<http://common-lisp.net/gitweb?p=projects/qitab/command-line-arguments.git;a=blob;f=get-command-line-arguments.lisp;h=02af126783ec366c974c22ad3a4e37b099213b69>
indicates that what people want in most cases is the list of arguments.
That's why FaRe's function there
contains a cdr call for most CL implementations. So clisp's ext:*args*
corresponds already exactly
to what people want in most cases. You're asking to change that; it makes
no sense.

----------------------------------------------------------------------

Comment By: Sam Steingold (sds)
Date: 2010-12-01 15:32

Message:
Pascal is right; *load-pathname* is what you want.
http://clisp.sourceforge.net/impnotes/quickstart.html#quickstart-unix

You are asking me to introduce a gratuitous incompatibility with the
previous versions of clisp.
While I agree that it is a good idea to offer an interface similar to
other CL implementations, 
I don't see much benefit in this specific change.

----------------------------------------------------------------------

Comment By: Andrew Pennebaker (mcandre)
Date: 2010-12-01 08:24

Message:
*load-pathname* is the name of the currently loading file, not necessarily
the file indicated by calling clisp somefile.lisp.

I petition CLISP to add something equivalent to Python's if
__name__=="__main__" or Ruby's if __FILE__==$0.

Basically, I'd like CLISP's *args* to operate like SBCL, Clozure, GCL,
ECL, CMUCL, AllegroCL, and LispWorks. Notice the use of cdr in
http://common-lisp.net/gitweb?p=projects/qitab/command-line-arguments.git;a=commitdiff;h=19866582857b3431e01c945afb62e9366e919f07

----------------------------------------------------------------------

Comment By: Pascal J. Bourguignon (informatimago)
Date: 2010-12-01 06:49

Message:
You can use *load-pathname* to get the script name.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=351355&aid=3124233&group_id=1355