Initial import of Perl5. The king is dead; long live the king!

1 files changed, 139 insertions, 0 deletions

diff --git a/contrib/perl5/run.c b/contrib/perl5/run.c
new file mode 100644
index 0000000..97444ec
--- /dev/null
+++ b/contrib/perl5/run.c
@@ -0,0 +1,139 @@
+/*    run.c
+ *
+ *    Copyright (c) 1991-1997, Larry Wall
+ *
+ *    You may distribute under the terms of either the GNU General Public
+ *    License or the Artistic License, as specified in the README file.
+ *
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+
+/*
+ * "Away now, Shadowfax!  Run, greatheart, run as you have never run before!
+ * Now we are come to the lands where you were foaled, and every stone you
+ * know.  Run now!  Hope is in speed!"  --Gandalf
+ */
+
+#ifdef PERL_OBJECT
+#define CALLOP this->*PL_op
+#else
+#define CALLOP *PL_op
+#endif
+
+int
+runops_standard(void)
+{
+    dTHR;
+
+    while ( PL_op = (CALLOP->op_ppaddr)(ARGS) ) ;
+
+    TAINT_NOT;
+    return 0;
+}
+
+#ifdef DEBUGGING
+
+dEXT char **watchaddr = 0;
+dEXT char *watchok;
+
+#ifndef PERL_OBJECT
+static void debprof _((OP*o));
+#endif
+
+#endif	/* DEBUGGING */
+
+int
+runops_debug(void)
+{
+#ifdef DEBUGGING
+    dTHR;
+    if (!PL_op) {
+	warn("NULL OP IN RUN");
+	return 0;
+    }
+
+    do {
+	if (PL_debug) {
+	    if (watchaddr != 0 && *watchaddr != watchok)
+		PerlIO_printf(Perl_debug_log, "WARNING: %lx changed from %lx to %lx\n",
+		    (long)watchaddr, (long)watchok, (long)*watchaddr);
+	    DEBUG_s(debstack());
+	    DEBUG_t(debop(PL_op));
+	    DEBUG_P(debprof(PL_op));
+	}
+    } while ( PL_op = (CALLOP->op_ppaddr)(ARGS) );
+
+    TAINT_NOT;
+    return 0;
+#else
+    return runops_standard();
+#endif	/* DEBUGGING */
+}
+
+I32
+debop(OP *o)
+{
+#ifdef DEBUGGING
+    SV *sv;
+    deb("%s", op_name[o->op_type]);
+    switch (o->op_type) {
+    case OP_CONST:
+	PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo->op_sv));
+	break;
+    case OP_GVSV:
+    case OP_GV:
+	if (cGVOPo->op_gv) {
+	    sv = NEWSV(0,0);
+	    gv_fullname3(sv, cGVOPo->op_gv, Nullch);
+	    PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, PL_na));
+	    SvREFCNT_dec(sv);
+	}
+	else
+	    PerlIO_printf(Perl_debug_log, "(NULL)");
+	break;
+    default:
+	break;
+    }
+    PerlIO_printf(Perl_debug_log, "\n");
+#endif	/* DEBUGGING */
+    return 0;
+}
+
+void
+watch(char **addr)
+{
+#ifdef DEBUGGING
+    watchaddr = addr;
+    watchok = *addr;
+    PerlIO_printf(Perl_debug_log, "WATCHING, %lx is currently %lx\n",
+	(long)watchaddr, (long)watchok);
+#endif	/* DEBUGGING */
+}
+
+STATIC void
+debprof(OP *o)
+{
+#ifdef DEBUGGING
+    if (!PL_profiledata)
+	Newz(000, PL_profiledata, MAXO, U32);
+    ++PL_profiledata[o->op_type];
+#endif /* DEBUGGING */
+}
+
+void
+debprofdump(void)
+{
+#ifdef DEBUGGING
+    unsigned i;
+    if (!PL_profiledata)
+	return;
+    for (i = 0; i < MAXO; i++) {
+	if (PL_profiledata[i])
+	    PerlIO_printf(Perl_debug_log,
+			  "%5lu %s\n", (unsigned long)PL_profiledata[i],
+                                       op_name[i]);
+    }
+#endif	/* DEBUGGING */
+}