78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/* $RCSfile: usersub.c,v $$Revision: 1.1 $$Date: 1995/03/24 04:33:54 $
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*
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* $Log: usersub.c,v $
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* Revision 1.1 1995/03/24 04:33:54 jkh
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* Bring back perl/usub as usub/, this time containing an updated curseperl
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* which is also installed by default (the reason for which should also be
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* plain shortly).
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*
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* Revision 4.0.1.1 91/11/05 19:07:24 lwall
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* patch11: there are now subroutines for calling back from C into Perl
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*
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* Revision 4.0 91/03/20 01:56:34 lwall
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* 4.0 baseline.
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*
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* Revision 3.0.1.1 90/08/09 04:06:10 lwall
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* patch19: Initial revision
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*
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*/
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#include "EXTERN.h"
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#include "perl.h"
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int
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userinit()
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{
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init_curses();
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}
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/* Be sure to refetch the stack pointer after calling these routines. */
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int
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callback(subname, sp, gimme, hasargs, numargs)
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char *subname;
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int sp; /* stack pointer after args are pushed */
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int gimme; /* called in array or scalar context */
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int hasargs; /* whether to create a @_ array for routine */
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int numargs; /* how many args are pushed on the stack */
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{
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static ARG myarg[3]; /* fake syntax tree node */
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int arglast[3];
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arglast[2] = sp;
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sp -= numargs;
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arglast[1] = sp--;
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arglast[0] = sp;
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if (!myarg[0].arg_ptr.arg_str)
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myarg[0].arg_ptr.arg_str = str_make("",0);
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myarg[1].arg_type = A_WORD;
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myarg[1].arg_ptr.arg_stab = stabent(subname, FALSE);
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myarg[2].arg_type = hasargs ? A_EXPR : A_NULL;
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return do_subr(myarg, gimme, arglast);
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}
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int
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callv(subname, sp, gimme, argv)
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char *subname;
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register int sp; /* current stack pointer */
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int gimme; /* called in array or scalar context */
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register char **argv; /* null terminated arg list, NULL for no arglist */
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{
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register int items = 0;
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int hasargs = (argv != 0);
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astore(stack, ++sp, Nullstr); /* reserve spot for 1st return arg */
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if (hasargs) {
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while (*argv) {
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astore(stack, ++sp, str_2mortal(str_make(*argv,0)));
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items++;
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argv++;
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}
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}
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return callback(subname, sp, gimme, hasargs, items);
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}
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