-/* $RCSfile: sv.c,v $$Revision: 4.1 $$Date: 92/08/07 18:26:45 $
+/* sv.c
*
- * Copyright (c) 1991, Larry Wall
+ * Copyright (c) 1991-1994, 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.
*
- * $Log: sv.c,v $
- * Revision 4.1 92/08/07 18:26:45 lwall
- *
- * Revision 4.0.1.6 92/06/11 21:14:21 lwall
- * patch34: quotes containing subscripts containing variables didn't parse right
- *
- * Revision 4.0.1.5 92/06/08 15:40:43 lwall
- * patch20: removed implicit int declarations on functions
- * patch20: Perl now distinguishes overlapped copies from non-overlapped
- * patch20: paragraph mode now skips extra newlines automatically
- * patch20: fixed memory leak in doube-quote interpretation
- * patch20: made /\$$foo/ look for literal '$foo'
- * patch20: "$var{$foo'bar}" didn't scan subscript correctly
- * patch20: a splice on non-existent array elements could dump core
- * patch20: running taintperl explicitly now does checks even if $< == $>
- *
- * Revision 4.0.1.4 91/11/05 18:40:51 lwall
- * patch11: $foo .= <BAR> could overrun malloced memory
- * patch11: \$ didn't always make it through double-quoter to regexp routines
- * patch11: prepared for ctype implementations that don't define isascii()
- *
- * Revision 4.0.1.3 91/06/10 01:27:54 lwall
- * patch10: $) and $| incorrectly handled in run-time patterns
- *
- * Revision 4.0.1.2 91/06/07 11:58:13 lwall
- * patch4: new copyright notice
- * patch4: taint check on undefined string could cause core dump
- *
- * Revision 4.0.1.1 91/04/12 09:15:30 lwall
- * patch1: fixed undefined environ problem
- * patch1: substr($ENV{"PATH"},0,0) = "/foo:" didn't modify environment
- * patch1: $foo .= <BAR> could cause core dump for certain lengths of $foo
- *
- * Revision 4.0 91/03/20 01:39:55 lwall
- * 4.0 baseline.
- *
+ */
+
+/*
+ * "I wonder what the Entish is for 'yes' and 'no'," he thought.
*/
#include "EXTERN.h"
#include "perl.h"
-#include "perly.h"
-static void ucase();
-static void lcase();
+#ifdef OVR_DBL_DIG
+/* Use an overridden DBL_DIG */
+# ifdef DBL_DIG
+# undef DBL_DIG
+# endif
+# define DBL_DIG OVR_DBL_DIG
+#else
+/* The following is all to get DBL_DIG, in order to pick a nice
+ default value for printing floating point numbers in Gconvert.
+ (see config.h)
+*/
+#ifdef I_LIMITS
+#include <limits.h>
+#endif
+#ifdef I_FLOAT
+#include <float.h>
+#endif
+#ifndef HAS_DBL_DIG
+#define DBL_DIG 15 /* A guess that works lots of places */
+#endif
+#endif
+
+#if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE)
+# define FAST_SV_GETS
+#endif
+
+static SV *more_sv _((void));
+static XPVIV *more_xiv _((void));
+static XPVNV *more_xnv _((void));
+static XPV *more_xpv _((void));
+static XRV *more_xrv _((void));
+static SV *new_sv _((void));
+static XPVIV *new_xiv _((void));
+static XPVNV *new_xnv _((void));
+static XPV *new_xpv _((void));
+static XRV *new_xrv _((void));
+static void del_xiv _((XPVIV* p));
+static void del_xnv _((XPVNV* p));
+static void del_xpv _((XPV* p));
+static void del_xrv _((XRV* p));
+static void sv_mortalgrow _((void));
+
+static void sv_unglob _((SV* sv));
+
+#ifdef PURIFY
+
+#define new_SV() sv = (SV*)safemalloc(sizeof(SV))
+#define del_SV(p) free((char*)p)
+
+void
+sv_add_arena(ptr, size, flags)
+char* ptr;
+U32 size;
+U32 flags;
+{
+ if (!(flags & SVf_FAKE))
+ free(ptr);
+}
+
+#else
+
+#define new_SV() \
+ if (sv_root) { \
+ sv = sv_root; \
+ sv_root = (SV*)SvANY(sv); \
+ ++sv_count; \
+ } \
+ else \
+ sv = more_sv();
+
+static SV*
+new_sv()
+{
+ SV* sv;
+ if (sv_root) {
+ sv = sv_root;
+ sv_root = (SV*)SvANY(sv);
+ ++sv_count;
+ return sv;
+ }
+ return more_sv();
+}
+
+#ifdef DEBUGGING
+#define del_SV(p) \
+ if (debug & 32768) \
+ del_sv(p); \
+ else { \
+ SvANY(p) = (void *)sv_root; \
+ sv_root = p; \
+ --sv_count; \
+ }
+
+static void
+del_sv(p)
+SV* p;
+{
+ if (debug & 32768) {
+ SV* sva;
+ SV* sv;
+ SV* svend;
+ int ok = 0;
+ for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ sv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ if (p >= sv && p < svend)
+ ok = 1;
+ }
+ if (!ok) {
+ warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
+ return;
+ }
+ }
+ SvANY(p) = (void *) sv_root;
+ sv_root = p;
+ --sv_count;
+}
+#else
+#define del_SV(p) \
+ SvANY(p) = (void *)sv_root; \
+ sv_root = p; \
+ --sv_count;
+
+#endif
+
+void
+sv_add_arena(ptr, size, flags)
+char* ptr;
+U32 size;
+U32 flags;
+{
+ SV* sva = (SV*)ptr;
+ register SV* sv;
+ register SV* svend;
+ Zero(sva, size, char);
+
+ /* The first SV in an arena isn't an SV. */
+ SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
+ SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
+ SvFLAGS(sva) = flags; /* FAKE if not to be freed */
+
+ sv_arenaroot = sva;
+ sv_root = sva + 1;
+
+ svend = &sva[SvREFCNT(sva) - 1];
+ sv = sva + 1;
+ while (sv < svend) {
+ SvANY(sv) = (void *)(SV*)(sv + 1);
+ SvFLAGS(sv) = SVTYPEMASK;
+ sv++;
+ }
+ SvANY(sv) = 0;
+ SvFLAGS(sv) = SVTYPEMASK;
+}
+
+static SV*
+more_sv()
+{
+ if (nice_chunk) {
+ sv_add_arena(nice_chunk, nice_chunk_size, 0);
+ nice_chunk = Nullch;
+ }
+ else
+ sv_add_arena(safemalloc(1008), 1008, 0);
+ return new_sv();
+}
+#endif
+
+void
+sv_report_used()
+{
+ SV* sva;
+ SV* sv;
+ register SV* svend;
+
+ for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ sv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ while (sv < svend) {
+ if (SvTYPE(sv) != SVTYPEMASK) {
+ fprintf(stderr, "****\n");
+ sv_dump(sv);
+ }
+ ++sv;
+ }
+ }
+}
+
+void
+sv_clean_objs()
+{
+ SV* sva;
+ register SV* sv;
+ register SV* svend;
+ SV* rv;
+
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+ register GV* gv;
+ for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ gv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ while (gv < svend) {
+ if (SvTYPE(gv) == SVt_PVGV && (sv = GvSV(gv)) &&
+ SvROK(sv) && SvOBJECT(rv = SvRV(sv)))
+ {
+ DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "),
+ sv_dump(sv));)
+ SvROK_off(sv);
+ SvRV(sv) = 0;
+ SvREFCNT_dec(rv);
+ }
+ ++gv;
+ }
+ }
+ if (!sv_objcount)
+ return;
+#endif
+ for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ sv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ while (sv < svend) {
+ if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
+ DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "),
+ sv_dump(sv));)
+ SvROK_off(sv);
+ SvRV(sv) = 0;
+ SvREFCNT_dec(rv);
+ }
+ /* XXX Might want to check arrays, etc. */
+ ++sv;
+ }
+ }
+}
+
+void
+sv_clean_all()
+{
+ SV* sva;
+ register SV* sv;
+ register SV* svend;
+
+ for (sva = sv_arenaroot; sva; sva = (SV*) SvANY(sva)) {
+ sv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ while (sv < svend) {
+ if (SvTYPE(sv) != SVTYPEMASK) {
+ DEBUG_D((fprintf(stderr, "Cleaning loops:\n "), sv_dump(sv));)
+ SvFLAGS(sv) |= SVf_BREAK;
+ SvREFCNT_dec(sv);
+ }
+ ++sv;
+ }
+ }
+}
+
+void
+sv_free_arenas()
+{
+ SV* sva;
+ SV* svanext;
+
+ /* Free arenas here, but be careful about fake ones. (We assume
+ contiguity of the fake ones with the corresponding real ones.) */
+
+ for (sva = sv_arenaroot; sva; sva = svanext) {
+ svanext = (SV*) SvANY(sva);
+ while (svanext && SvFAKE(svanext))
+ svanext = (SV*) SvANY(svanext);
+
+ if (!SvFAKE(sva))
+ Safefree(sva);
+ }
+}
+
+static XPVIV*
+new_xiv()
+{
+ IV** xiv;
+ if (xiv_root) {
+ xiv = xiv_root;
+ /*
+ * See comment in more_xiv() -- RAM.
+ */
+ xiv_root = (IV**)*xiv;
+ return (XPVIV*)((char*)xiv - sizeof(XPV));
+ }
+ return more_xiv();
+}
+
+static void
+del_xiv(p)
+XPVIV* p;
+{
+ IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
+ *xiv = (IV *)xiv_root;
+ xiv_root = xiv;
+}
+
+static XPVIV*
+more_xiv()
+{
+ register IV** xiv;
+ register IV** xivend;
+ XPV* ptr = (XPV*)safemalloc(1008);
+ ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
+ xiv_arenaroot = ptr; /* to keep Purify happy */
+
+ xiv = (IV**) ptr;
+ xivend = &xiv[1008 / sizeof(IV *) - 1];
+ xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
+ xiv_root = xiv;
+ while (xiv < xivend) {
+ *xiv = (IV *)(xiv + 1);
+ xiv++;
+ }
+ *xiv = 0;
+ return new_xiv();
+}
+
+static XPVNV*
+new_xnv()
+{
+ double* xnv;
+ if (xnv_root) {
+ xnv = xnv_root;
+ xnv_root = *(double**)xnv;
+ return (XPVNV*)((char*)xnv - sizeof(XPVIV));
+ }
+ return more_xnv();
+}
+
+static void
+del_xnv(p)
+XPVNV* p;
+{
+ double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
+ *(double**)xnv = xnv_root;
+ xnv_root = xnv;
+}
+
+static XPVNV*
+more_xnv()
+{
+ register double* xnv;
+ register double* xnvend;
+ xnv = (double*)safemalloc(1008);
+ xnvend = &xnv[1008 / sizeof(double) - 1];
+ xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
+ xnv_root = xnv;
+ while (xnv < xnvend) {
+ *(double**)xnv = (double*)(xnv + 1);
+ xnv++;
+ }
+ *(double**)xnv = 0;
+ return new_xnv();
+}
+
+static XRV*
+new_xrv()
+{
+ XRV* xrv;
+ if (xrv_root) {
+ xrv = xrv_root;
+ xrv_root = (XRV*)xrv->xrv_rv;
+ return xrv;
+ }
+ return more_xrv();
+}
+
+static void
+del_xrv(p)
+XRV* p;
+{
+ p->xrv_rv = (SV*)xrv_root;
+ xrv_root = p;
+}
+
+static XRV*
+more_xrv()
+{
+ register XRV* xrv;
+ register XRV* xrvend;
+ xrv_root = (XRV*)safemalloc(1008);
+ xrv = xrv_root;
+ xrvend = &xrv[1008 / sizeof(XRV) - 1];
+ while (xrv < xrvend) {
+ xrv->xrv_rv = (SV*)(xrv + 1);
+ xrv++;
+ }
+ xrv->xrv_rv = 0;
+ return new_xrv();
+}
+
+static XPV*
+new_xpv()
+{
+ XPV* xpv;
+ if (xpv_root) {
+ xpv = xpv_root;
+ xpv_root = (XPV*)xpv->xpv_pv;
+ return xpv;
+ }
+ return more_xpv();
+}
+
+static void
+del_xpv(p)
+XPV* p;
+{
+ p->xpv_pv = (char*)xpv_root;
+ xpv_root = p;
+}
+
+static XPV*
+more_xpv()
+{
+ register XPV* xpv;
+ register XPV* xpvend;
+ xpv_root = (XPV*)safemalloc(1008);
+ xpv = xpv_root;
+ xpvend = &xpv[1008 / sizeof(XPV) - 1];
+ while (xpv < xpvend) {
+ xpv->xpv_pv = (char*)(xpv + 1);
+ xpv++;
+ }
+ xpv->xpv_pv = 0;
+ return new_xpv();
+}
+
+#ifdef PURIFY
+#define new_XIV() (void*)safemalloc(sizeof(XPVIV))
+#define del_XIV(p) free((char*)p)
+#else
+#define new_XIV() (void*)new_xiv()
+#define del_XIV(p) del_xiv(p)
+#endif
+
+#ifdef PURIFY
+#define new_XNV() (void*)safemalloc(sizeof(XPVNV))
+#define del_XNV(p) free((char*)p)
+#else
+#define new_XNV() (void*)new_xnv()
+#define del_XNV(p) del_xnv(p)
+#endif
+
+#ifdef PURIFY
+#define new_XRV() (void*)safemalloc(sizeof(XRV))
+#define del_XRV(p) free((char*)p)
+#else
+#define new_XRV() (void*)new_xrv()
+#define del_XRV(p) del_xrv(p)
+#endif
+
+#ifdef PURIFY
+#define new_XPV() (void*)safemalloc(sizeof(XPV))
+#define del_XPV(p) free((char*)p)
+#else
+#define new_XPV() (void*)new_xpv()
+#define del_XPV(p) del_xpv(p)
+#endif
+
+#define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
+#define del_XPVIV(p) free((char*)p)
+
+#define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
+#define del_XPVNV(p) free((char*)p)
+
+#define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
+#define del_XPVMG(p) free((char*)p)
+
+#define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
+#define del_XPVLV(p) free((char*)p)
+
+#define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
+#define del_XPVAV(p) free((char*)p)
+
+#define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
+#define del_XPVHV(p) free((char*)p)
+
+#define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
+#define del_XPVCV(p) free((char*)p)
+
+#define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
+#define del_XPVGV(p) free((char*)p)
+
+#define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
+#define del_XPVBM(p) free((char*)p)
+
+#define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
+#define del_XPVFM(p) free((char*)p)
+
+#define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
+#define del_XPVIO(p) free((char*)p)
bool
sv_upgrade(sv, mt)
char* pv;
U32 cur;
U32 len;
- I32 iv;
+ IV iv;
double nv;
MAGIC* magic;
HV* stash;
if (SvTYPE(sv) == mt)
return TRUE;
+ if (mt < SVt_PVIV)
+ (void)SvOOK_off(sv);
+
switch (SvTYPE(sv)) {
case SVt_NULL:
pv = 0;
magic = 0;
stash = 0;
break;
- case SVt_REF:
- sv_free((SV*)SvANY(sv));
- pv = 0;
- cur = 0;
- len = 0;
- iv = SvANYI32(sv);
- nv = (double)SvANYI32(sv);
- SvNOK_only(sv);
- magic = 0;
- stash = 0;
- if (mt == SVt_PV)
- mt = SVt_PVIV;
- break;
case SVt_IV:
pv = 0;
cur = 0;
len = 0;
- iv = SvIV(sv);
- nv = (double)SvIV(sv);
+ iv = SvIVX(sv);
+ nv = (double)SvIVX(sv);
del_XIV(SvANY(sv));
magic = 0;
stash = 0;
- if (mt == SVt_PV)
+ if (mt == SVt_NV)
+ mt = SVt_PVNV;
+ else if (mt < SVt_PVIV)
mt = SVt_PVIV;
break;
case SVt_NV:
pv = 0;
cur = 0;
len = 0;
- if (SvIOK(sv))
- iv = SvIV(sv);
- else
- iv = (I32)SvNV(sv);
- nv = SvNV(sv);
+ nv = SvNVX(sv);
+ iv = I_32(nv);
magic = 0;
stash = 0;
del_XNV(SvANY(sv));
SvANY(sv) = 0;
- if (mt == SVt_PV || mt == SVt_PVIV)
+ if (mt < SVt_PVNV)
mt = SVt_PVNV;
break;
+ case SVt_RV:
+ pv = (char*)SvRV(sv);
+ cur = 0;
+ len = 0;
+ iv = (IV)pv;
+ nv = (double)(unsigned long)pv;
+ del_XRV(SvANY(sv));
+ magic = 0;
+ stash = 0;
+ break;
case SVt_PV:
nv = 0.0;
- pv = SvPV(sv);
+ pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
iv = 0;
magic = 0;
stash = 0;
del_XPV(SvANY(sv));
+ if (mt <= SVt_IV)
+ mt = SVt_PVIV;
+ else if (mt == SVt_NV)
+ mt = SVt_PVNV;
break;
case SVt_PVIV:
nv = 0.0;
- pv = SvPV(sv);
+ pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
- iv = SvIV(sv);
+ iv = SvIVX(sv);
nv = 0.0;
magic = 0;
stash = 0;
del_XPVIV(SvANY(sv));
break;
case SVt_PVNV:
- nv = SvNV(sv);
- pv = SvPV(sv);
+ nv = SvNVX(sv);
+ pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
- iv = SvIV(sv);
- nv = SvNV(sv);
+ iv = SvIVX(sv);
+ nv = SvNVX(sv);
magic = 0;
stash = 0;
del_XPVNV(SvANY(sv));
break;
case SVt_PVMG:
- pv = SvPV(sv);
+ pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
- iv = SvIV(sv);
- nv = SvNV(sv);
+ iv = SvIVX(sv);
+ nv = SvNVX(sv);
magic = SvMAGIC(sv);
stash = SvSTASH(sv);
del_XPVMG(SvANY(sv));
break;
default:
- fatal("Can't upgrade that kind of scalar");
+ croak("Can't upgrade that kind of scalar");
}
switch (mt) {
case SVt_NULL:
- fatal("Can't upgrade to undef");
- case SVt_REF:
- SvIOK_on(sv);
- break;
+ croak("Can't upgrade to undef");
case SVt_IV:
SvANY(sv) = new_XIV();
- SvIV(sv) = iv;
+ SvIVX(sv) = iv;
break;
case SVt_NV:
SvANY(sv) = new_XNV();
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvNVX(sv) = nv;
+ break;
+ case SVt_RV:
+ SvANY(sv) = new_XRV();
+ SvRV(sv) = (SV*)pv;
break;
case SVt_PV:
SvANY(sv) = new_XPV();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
break;
case SVt_PVIV:
SvANY(sv) = new_XPVIV();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
+ SvIVX(sv) = iv;
if (SvNIOK(sv))
- SvIOK_on(sv);
+ (void)SvIOK_on(sv);
SvNOK_off(sv);
break;
case SVt_PVNV:
SvANY(sv) = new_XPVNV();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
break;
case SVt_PVMG:
SvANY(sv) = new_XPVMG();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
break;
case SVt_PVLV:
SvANY(sv) = new_XPVLV();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
LvTARGOFF(sv) = 0;
break;
case SVt_PVAV:
SvANY(sv) = new_XPVAV();
- SvPV(sv) = pv;
- SvCUR(sv) = cur;
- SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ if (pv)
+ Safefree(pv);
+ SvPVX(sv) = 0;
+ AvMAX(sv) = 0;
+ AvFILL(sv) = 0;
+ SvIVX(sv) = 0;
+ SvNVX(sv) = 0.0;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- AvMAGIC(sv) = 0;
- AvARRAY(sv) = 0;
AvALLOC(sv) = 0;
- AvMAX(sv) = 0;
- AvFILL(sv) = 0;
AvARYLEN(sv) = 0;
AvFLAGS(sv) = 0;
break;
case SVt_PVHV:
SvANY(sv) = new_XPVHV();
- SvPV(sv) = pv;
- SvCUR(sv) = cur;
- SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ if (pv)
+ Safefree(pv);
+ SvPVX(sv) = 0;
+ HvFILL(sv) = 0;
+ HvMAX(sv) = 0;
+ HvKEYS(sv) = 0;
+ SvNVX(sv) = 0.0;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- HvMAGIC(sv) = 0;
- HvARRAY(sv) = 0;
- HvMAX(sv) = 0;
- HvDOSPLIT(sv) = 0;
- HvFILL(sv) = 0;
HvRITER(sv) = 0;
HvEITER(sv) = 0;
HvPMROOT(sv) = 0;
HvNAME(sv) = 0;
- HvDBM(sv) = 0;
- HvCOEFFSIZE(sv) = 0;
break;
case SVt_PVCV:
SvANY(sv) = new_XPVCV();
- SvPV(sv) = pv;
+ Zero(SvANY(sv), 1, XPVCV);
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- CvSTASH(sv) = 0;
- CvSTART(sv) = 0;
- CvROOT(sv) = 0;
- CvUSERSUB(sv) = 0;
- CvUSERINDEX(sv) = 0;
- CvFILEGV(sv) = 0;
- CvDEPTH(sv) = 0;
- CvPADLIST(sv) = 0;
- CvDELETED(sv) = 0;
break;
case SVt_PVGV:
SvANY(sv) = new_XPVGV();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
GvGP(sv) = 0;
GvNAME(sv) = 0;
GvNAMELEN(sv) = 0;
GvSTASH(sv) = 0;
+ GvFLAGS(sv) = 0;
break;
case SVt_PVBM:
SvANY(sv) = new_XPVBM();
- SvPV(sv) = pv;
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
BmRARE(sv) = 0;
break;
case SVt_PVFM:
SvANY(sv) = new_XPVFM();
- SvPV(sv) = pv;
+ Zero(SvANY(sv), 1, XPVFM);
+ SvPVX(sv) = pv;
+ SvCUR(sv) = cur;
+ SvLEN(sv) = len;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
+ SvMAGIC(sv) = magic;
+ SvSTASH(sv) = stash;
+ break;
+ case SVt_PVIO:
+ SvANY(sv) = new_XPVIO();
+ Zero(SvANY(sv), 1, XPVIO);
+ SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
- SvIV(sv) = iv;
- SvNV(sv) = nv;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- FmLINES(sv) = 0;
+ IoPAGE_LEN(sv) = 60;
break;
}
- SvTYPE(sv) = mt;
+ SvFLAGS(sv) &= ~SVTYPEMASK;
+ SvFLAGS(sv) |= mt;
return TRUE;
}
+#ifdef DEBUGGING
char *
sv_peek(sv)
register SV *sv;
{
char *t = tokenbuf;
- *t = '\0';
+ int unref = 0;
retry:
if (!sv) {
strcpy(t, "VOID");
- return tokenbuf;
+ goto finish;
}
else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
strcpy(t, "WILD");
- return tokenbuf;
- }
- else if (SvREFCNT(sv) == 0 && !SvREADONLY(sv)) {
- strcpy(t, "UNREF");
- return tokenbuf;
+ goto finish;
+ }
+ else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
+ if (sv == &sv_undef) {
+ strcpy(t, "SV_UNDEF");
+ if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
+ SVs_GMG|SVs_SMG|SVs_RMG)) &&
+ SvREADONLY(sv))
+ goto finish;
+ }
+ else if (sv == &sv_no) {
+ strcpy(t, "SV_NO");
+ if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
+ SVs_GMG|SVs_SMG|SVs_RMG)) &&
+ !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
+ SVp_POK|SVp_NOK)) &&
+ SvCUR(sv) == 0 &&
+ SvNVX(sv) == 0.0)
+ goto finish;
+ }
+ else {
+ strcpy(t, "SV_YES");
+ if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
+ SVs_GMG|SVs_SMG|SVs_RMG)) &&
+ !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
+ SVp_POK|SVp_NOK)) &&
+ SvCUR(sv) == 1 &&
+ SvPVX(sv) && *SvPVX(sv) == '1' &&
+ SvNVX(sv) == 1.0)
+ goto finish;
+ }
+ t += strlen(t);
+ *t++ = ':';
+ }
+ else if (SvREFCNT(sv) == 0) {
+ *t++ = '(';
+ unref++;
+ }
+ if (SvROK(sv)) {
+ *t++ = '\\';
+ if (t - tokenbuf + unref > 10) {
+ strcpy(tokenbuf + unref + 3,"...");
+ goto finish;
+ }
+ sv = (SV*)SvRV(sv);
+ goto retry;
}
- else {
- switch (SvTYPE(sv)) {
- default:
- strcpy(t,"FREED");
- return tokenbuf;
- break;
+ switch (SvTYPE(sv)) {
+ default:
+ strcpy(t,"FREED");
+ goto finish;
- case SVt_NULL:
- strcpy(t,"UNDEF");
- return tokenbuf;
- case SVt_REF:
- *t++ = '\\';
- if (t - tokenbuf > 10) {
- strcpy(tokenbuf + 3,"...");
- return tokenbuf;
- }
- sv = (SV*)SvANY(sv);
- goto retry;
- case SVt_IV:
- strcpy(t,"IV");
- break;
- case SVt_NV:
- strcpy(t,"NV");
- break;
- case SVt_PV:
- strcpy(t,"PV");
- break;
- case SVt_PVIV:
- strcpy(t,"PVIV");
- break;
- case SVt_PVNV:
- strcpy(t,"PVNV");
- break;
- case SVt_PVMG:
- strcpy(t,"PVMG");
- break;
- case SVt_PVLV:
- strcpy(t,"PVLV");
- break;
- case SVt_PVAV:
- strcpy(t,"AV");
- break;
- case SVt_PVHV:
- strcpy(t,"HV");
- break;
- case SVt_PVCV:
- strcpy(t,"CV");
- break;
- case SVt_PVGV:
- strcpy(t,"GV");
- break;
- case SVt_PVBM:
- strcpy(t,"BM");
- break;
- case SVt_PVFM:
- strcpy(t,"FM");
- break;
- }
+ case SVt_NULL:
+ strcpy(t,"UNDEF");
+ return tokenbuf;
+ case SVt_IV:
+ strcpy(t,"IV");
+ break;
+ case SVt_NV:
+ strcpy(t,"NV");
+ break;
+ case SVt_RV:
+ strcpy(t,"RV");
+ break;
+ case SVt_PV:
+ strcpy(t,"PV");
+ break;
+ case SVt_PVIV:
+ strcpy(t,"PVIV");
+ break;
+ case SVt_PVNV:
+ strcpy(t,"PVNV");
+ break;
+ case SVt_PVMG:
+ strcpy(t,"PVMG");
+ break;
+ case SVt_PVLV:
+ strcpy(t,"PVLV");
+ break;
+ case SVt_PVAV:
+ strcpy(t,"AV");
+ break;
+ case SVt_PVHV:
+ strcpy(t,"HV");
+ break;
+ case SVt_PVCV:
+ if (CvGV(sv))
+ sprintf(t, "CV(%s)", GvNAME(CvGV(sv)));
+ else
+ strcpy(t, "CV()");
+ goto finish;
+ case SVt_PVGV:
+ strcpy(t,"GV");
+ break;
+ case SVt_PVBM:
+ strcpy(t,"BM");
+ break;
+ case SVt_PVFM:
+ strcpy(t,"FM");
+ break;
+ case SVt_PVIO:
+ strcpy(t,"IO");
+ break;
}
t += strlen(t);
- if (SvPOK(sv)) {
- if (!SvPV(sv))
- return "(null)";
+ if (SvPOKp(sv)) {
+ if (!SvPVX(sv))
+ strcpy(t, "(null)");
if (SvOOK(sv))
- sprintf(t,"(%d+\"%0.127s\")",SvIV(sv),SvPV(sv));
+ sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
else
- sprintf(t,"(\"%0.127s\")",SvPV(sv));
+ sprintf(t,"(\"%.127s\")",SvPVX(sv));
}
- else if (SvNOK(sv))
- sprintf(t,"(%g)",SvNV(sv));
- else if (SvIOK(sv))
- sprintf(t,"(%ld)",(long)SvIV(sv));
+ else if (SvNOKp(sv))
+ sprintf(t,"(%g)",SvNVX(sv));
+ else if (SvIOKp(sv))
+ sprintf(t,"(%ld)",(long)SvIVX(sv));
else
strcpy(t,"()");
+
+ finish:
+ if (unref) {
+ t += strlen(t);
+ while (unref--)
+ *t++ = ')';
+ *t = '\0';
+ }
return tokenbuf;
}
+#endif
int
sv_backoff(sv)
register SV *sv;
{
assert(SvOOK(sv));
- if (SvIV(sv)) {
- char *s = SvPV(sv);
- SvLEN(sv) += SvIV(sv);
- SvPV(sv) -= SvIV(sv);
+ if (SvIVX(sv)) {
+ char *s = SvPVX(sv);
+ SvLEN(sv) += SvIVX(sv);
+ SvPVX(sv) -= SvIVX(sv);
SvIV_set(sv, 0);
- Move(s, SvPV(sv), SvCUR(sv)+1, char);
+ Move(s, SvPVX(sv), SvCUR(sv)+1, char);
}
SvFLAGS(sv) &= ~SVf_OOK;
+ return 0;
}
char *
my_exit(1);
}
#endif /* MSDOS */
- if (SvREADONLY(sv))
- fatal(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
if (SvTYPE(sv) < SVt_PV) {
sv_upgrade(sv, SVt_PV);
- s = SvPV(sv);
+ s = SvPVX(sv);
}
else if (SvOOK(sv)) { /* pv is offset? */
sv_backoff(sv);
- s = SvPV(sv);
+ s = SvPVX(sv);
if (newlen > SvLEN(sv))
newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
}
else
- s = SvPV(sv);
+ s = SvPVX(sv);
if (newlen > SvLEN(sv)) { /* need more room? */
- if (SvLEN(sv))
+ if (SvLEN(sv) && s)
Renew(s,newlen,char);
else
New(703,s,newlen,char);
void
sv_setiv(sv,i)
register SV *sv;
-I32 i;
+IV i;
{
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (SvTYPE(sv) < SVt_IV)
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
sv_upgrade(sv, SVt_IV);
- else if (SvTYPE(sv) == SVt_PV)
- sv_upgrade(sv, SVt_PVIV);
- SvIV(sv) = i;
- SvIOK_only(sv); /* validate number */
- SvTDOWN(sv);
-}
-
+ break;
+ case SVt_NV:
+ sv_upgrade(sv, SVt_PVNV);
+ break;
+ case SVt_RV:
+ case SVt_PV:
+ sv_upgrade(sv, SVt_PVIV);
+ break;
+
+ case SVt_PVGV:
+ if (SvFAKE(sv)) {
+ sv_unglob(sv);
+ break;
+ }
+ /* FALL THROUGH */
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVIO:
+ croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
+ op_name[op->op_type]);
+ }
+ (void)SvIOK_only(sv); /* validate number */
+ SvIVX(sv) = i;
+ SvTAINT(sv);
+}
+
void
sv_setnv(sv,num)
register SV *sv;
double num;
{
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (SvTYPE(sv) < SVt_NV)
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ case SVt_IV:
sv_upgrade(sv, SVt_NV);
- else if (SvTYPE(sv) < SVt_PVNV)
+ break;
+ case SVt_NV:
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
sv_upgrade(sv, SVt_PVNV);
- else if (SvPOK(sv)) {
- SvOOK_off(sv);
+ /* FALL THROUGH */
+ case SVt_PVNV:
+ case SVt_PVMG:
+ case SVt_PVBM:
+ case SVt_PVLV:
+ if (SvOOK(sv))
+ (void)SvOOK_off(sv);
+ break;
+ case SVt_PVGV:
+ if (SvFAKE(sv)) {
+ sv_unglob(sv);
+ break;
+ }
+ /* FALL THROUGH */
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVIO:
+ croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
+ op_name[op->op_type]);
}
- SvNV(sv) = num;
- SvNOK_only(sv); /* validate number */
- SvTDOWN(sv);
+ SvNVX(sv) = num;
+ (void)SvNOK_only(sv); /* validate number */
+ SvTAINT(sv);
}
-I32
+static void
+not_a_number(sv)
+SV *sv;
+{
+ char tmpbuf[64];
+ char *d = tmpbuf;
+ char *s;
+ int i;
+
+ for (s = SvPVX(sv), i = 50; *s && i; s++,i--) {
+ int ch = *s;
+ if (ch & 128 && !isprint(ch)) {
+ *d++ = 'M';
+ *d++ = '-';
+ ch &= 127;
+ }
+ if (isprint(ch))
+ *d++ = ch;
+ else {
+ *d++ = '^';
+ *d++ = ch ^ 64;
+ }
+ }
+ if (*s) {
+ *d++ = '.';
+ *d++ = '.';
+ *d++ = '.';
+ }
+ *d = '\0';
+
+ if (op)
+ warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
+ op_name[op->op_type]);
+ else
+ warn("Argument \"%s\" isn't numeric", tmpbuf);
+}
+
+IV
sv_2iv(sv)
register SV *sv;
{
if (!sv)
return 0;
- if (SvREADONLY(sv)) {
- if (SvNOK(sv))
- return (I32)SvNV(sv);
- if (SvPOK(sv) && SvLEN(sv))
- return atof(SvPV(sv));
- if (dowarn)
- warn("Use of uninitialized variable");
- return 0;
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ if (SvIOKp(sv))
+ return SvIVX(sv);
+ if (SvNOKp(sv)) {
+ if (SvNVX(sv) < 0.0)
+ return I_V(SvNVX(sv));
+ else
+ return (IV) U_V(SvNVX(sv));
+ }
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !looks_like_number(sv))
+ not_a_number(sv);
+ return (IV)atol(SvPVX(sv));
+ }
+ if (!SvROK(sv)) {
+ return 0;
+ }
+ }
+ if (SvTHINKFIRST(sv)) {
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
+ return SvIV(tmpstr);
+#endif /* OVERLOAD */
+ return (IV)SvRV(sv);
+ }
+ if (SvREADONLY(sv)) {
+ if (SvNOKp(sv)) {
+ if (SvNVX(sv) < 0.0)
+ return I_V(SvNVX(sv));
+ else
+ return (IV) U_V(SvNVX(sv));
+ }
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !looks_like_number(sv))
+ not_a_number(sv);
+ return (IV)atol(SvPVX(sv));
+ }
+ if (dowarn)
+ warn(warn_uninit);
+ return 0;
+ }
}
- if (SvTYPE(sv) < SVt_IV) {
- if (SvTYPE(sv) == SVt_REF)
- return (I32)SvANYI32(sv);
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
sv_upgrade(sv, SVt_IV);
- DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvIV(sv)));
- return SvIV(sv);
- }
- else if (SvTYPE(sv) == SVt_PV)
+ return SvIVX(sv);
+ case SVt_PV:
sv_upgrade(sv, SVt_PVIV);
- if (SvNOK(sv))
- SvIV(sv) = (I32)SvNV(sv);
- else if (SvPOK(sv) && SvLEN(sv)) {
- if (dowarn && !looks_like_number(sv)) {
- if (op)
- warn("Argument wasn't numeric for \"%s\"",op_name[op->op_type]);
- else
- warn("Argument wasn't numeric");
- }
- SvIV(sv) = atol(SvPV(sv));
+ break;
+ case SVt_NV:
+ sv_upgrade(sv, SVt_PVNV);
+ break;
+ }
+ if (SvNOKp(sv)) {
+ (void)SvIOK_on(sv);
+ if (SvNVX(sv) < 0.0)
+ SvIVX(sv) = I_V(SvNVX(sv));
+ else
+ SvIVX(sv) = (IV) U_V(SvNVX(sv));
+ }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !looks_like_number(sv))
+ not_a_number(sv);
+ (void)SvIOK_on(sv);
+ SvIVX(sv) = (IV)atol(SvPVX(sv));
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvUPGRADE(sv, SVt_IV);
- SvIV(sv) = 0;
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0;
}
- SvIOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2iv(%d)\n",sv,SvIV(sv)));
- return SvIV(sv);
+ DEBUG_c(fprintf(stderr,"0x%lx 2iv(%ld)\n",
+ (unsigned long)sv,(long)SvIVX(sv)));
+ return SvIVX(sv);
}
double
{
if (!sv)
return 0.0;
- if (SvREADONLY(sv)) {
- if (SvPOK(sv) && SvLEN(sv))
- return atof(SvPV(sv));
- if (dowarn)
- warn("Use of uninitialized variable");
- return 0.0;
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ if (SvNOKp(sv))
+ return SvNVX(sv);
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ return atof(SvPVX(sv));
+ }
+ if (SvIOKp(sv))
+ return (double)SvIVX(sv);
+ if (!SvROK(sv)) {
+ return 0;
+ }
+ }
+ if (SvTHINKFIRST(sv)) {
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
+ return SvNV(tmpstr);
+#endif /* OVERLOAD */
+ return (double)(unsigned long)SvRV(sv);
+ }
+ if (SvREADONLY(sv)) {
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ return atof(SvPVX(sv));
+ }
+ if (SvIOKp(sv))
+ return (double)SvIVX(sv);
+ if (dowarn)
+ warn(warn_uninit);
+ return 0.0;
+ }
}
if (SvTYPE(sv) < SVt_NV) {
- if (SvTYPE(sv) == SVt_REF)
- return (double)SvANYI32(sv);
- sv_upgrade(sv, SVt_NV);
- DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvNV(sv)));
- return SvNV(sv);
+ if (SvTYPE(sv) == SVt_IV)
+ sv_upgrade(sv, SVt_PVNV);
+ else
+ sv_upgrade(sv, SVt_NV);
+ DEBUG_c(fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
}
else if (SvTYPE(sv) < SVt_PVNV)
sv_upgrade(sv, SVt_PVNV);
- if (SvIOK(sv) &&
- (!SvPOK(sv) || !strchr(SvPV(sv),'.') || !looks_like_number(sv)))
+ if (SvIOKp(sv) &&
+ (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
{
- SvNV(sv) = (double)SvIV(sv);
+ SvNVX(sv) = (double)SvIVX(sv);
}
- else if (SvPOK(sv) && SvLEN(sv)) {
- if (dowarn && !SvIOK(sv) && !looks_like_number(sv)) {
- if (op)
- warn("Argument wasn't numeric for \"%s\"",op_name[op->op_type]);
- else
- warn("Argument wasn't numeric");
- }
- SvNV(sv) = atof(SvPV(sv));
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ SvNVX(sv) = atof(SvPVX(sv));
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvNV(sv) = 0.0;
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0.0;
}
SvNOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2nv(%g)\n",sv,SvNV(sv)));
- return SvNV(sv);
+ DEBUG_c(fprintf(stderr,"0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
+ return SvNVX(sv);
}
char *
-sv_2pv(sv)
+sv_2pv(sv, lp)
register SV *sv;
+STRLEN *lp;
{
register char *s;
int olderrno;
- if (!sv)
+ if (!sv) {
+ *lp = 0;
return "";
- if (SvTYPE(sv) == SVt_REF) {
- sv = (SV*)SvANY(sv);
- if (!sv)
- return "<Empty reference>";
- switch (SvTYPE(sv)) {
- case SVt_NULL: s = "an undefined value"; break;
- case SVt_REF: s = "a reference"; break;
- case SVt_IV: s = "an integer value"; break;
- case SVt_NV: s = "a numeric value"; break;
- case SVt_PV: s = "a string value"; break;
- case SVt_PVIV: s = "a string+integer value"; break;
- case SVt_PVNV: s = "a scalar value"; break;
- case SVt_PVMG: s = "a magic value"; break;
- case SVt_PVLV: s = "an lvalue"; break;
- case SVt_PVAV: s = "an array value"; break;
- case SVt_PVHV: s = "an associative array value"; break;
- case SVt_PVCV: s = "a code value"; break;
- case SVt_PVGV: s = "a glob value"; break;
- case SVt_PVBM: s = "a search string"; break;
- case SVt_PVFM: s = "a formatline"; break;
- default: s = "something weird"; break;
- }
- sprintf(tokenbuf,"<Reference to %s at 0x%lx>", s, (unsigned long)sv);
- return tokenbuf;
}
- if (SvREADONLY(sv)) {
- if (SvIOK(sv)) {
- (void)sprintf(tokenbuf,"%ld",SvIV(sv));
- return tokenbuf;
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ if (SvPOKp(sv)) {
+ *lp = SvCUR(sv);
+ return SvPVX(sv);
}
- if (SvNOK(sv)) {
- (void)sprintf(tokenbuf,"%.20g",SvNV(sv));
- return tokenbuf;
+ if (SvIOKp(sv)) {
+ (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
+ goto tokensave;
+ }
+ if (SvNOKp(sv)) {
+ Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
+ goto tokensave;
+ }
+ if (!SvROK(sv)) {
+ *lp = 0;
+ return "";
+ }
+ }
+ if (SvTHINKFIRST(sv)) {
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
+ return SvPV(tmpstr,*lp);
+#endif /* OVERLOAD */
+ sv = (SV*)SvRV(sv);
+ if (!sv)
+ s = "NULLREF";
+ else {
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ case SVt_IV:
+ case SVt_NV:
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
+ case SVt_PVNV:
+ case SVt_PVBM:
+ case SVt_PVMG: s = "SCALAR"; break;
+ case SVt_PVLV: s = "LVALUE"; break;
+ case SVt_PVAV: s = "ARRAY"; break;
+ case SVt_PVHV: s = "HASH"; break;
+ case SVt_PVCV: s = "CODE"; break;
+ case SVt_PVGV: s = "GLOB"; break;
+ case SVt_PVFM: s = "FORMATLINE"; break;
+ case SVt_PVIO: s = "FILEHANDLE"; break;
+ default: s = "UNKNOWN"; break;
+ }
+ if (SvOBJECT(sv))
+ sprintf(tokenbuf, "%s=%s(0x%lx)",
+ HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
+ else
+ sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
+ goto tokensaveref;
+ }
+ *lp = strlen(s);
+ return s;
+ }
+ if (SvREADONLY(sv)) {
+ if (SvNOKp(sv)) {
+ Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
+ goto tokensave;
+ }
+ if (SvIOKp(sv)) {
+ (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
+ goto tokensave;
+ }
+ if (dowarn)
+ warn(warn_uninit);
+ *lp = 0;
+ return "";
}
- if (dowarn)
- warn("Use of uninitialized variable");
- return "";
}
if (!SvUPGRADE(sv, SVt_PV))
return 0;
- if (SvNOK(sv)) {
+ if (SvNOKp(sv)) {
if (SvTYPE(sv) < SVt_PVNV)
sv_upgrade(sv, SVt_PVNV);
SvGROW(sv, 28);
- s = SvPV(sv);
+ s = SvPVX(sv);
olderrno = errno; /* some Xenix systems wipe out errno here */
-#if defined(scs) && defined(ns32000)
- gcvt(SvNV(sv),20,s);
-#else
#ifdef apollo
- if (SvNV(sv) == 0.0)
+ if (SvNVX(sv) == 0.0)
(void)strcpy(s,"0");
else
#endif /*apollo*/
- (void)sprintf(s,"%.20g",SvNV(sv));
-#endif /*scs*/
+ Gconvert(SvNVX(sv), DBL_DIG, 0, s);
errno = olderrno;
+#ifdef FIXNEGATIVEZERO
+ if (*s == '-' && s[1] == '0' && !s[2])
+ strcpy(s,"0");
+#endif
while (*s) s++;
#ifdef hcx
if (s[-1] == '.')
s--;
#endif
}
- else if (SvIOK(sv)) {
+ else if (SvIOKp(sv)) {
if (SvTYPE(sv) < SVt_PVIV)
sv_upgrade(sv, SVt_PVIV);
SvGROW(sv, 11);
- s = SvPV(sv);
+ s = SvPVX(sv);
olderrno = errno; /* some Xenix systems wipe out errno here */
- (void)sprintf(s,"%ld",SvIV(sv));
+ (void)sprintf(s,"%ld",(long)SvIVX(sv));
errno = olderrno;
while (*s) s++;
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- sv_grow(sv, 1);
- s = SvPV(sv);
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ *lp = 0;
+ return "";
}
*s = '\0';
- SvCUR_set(sv, s - SvPV(sv));
+ *lp = s - SvPVX(sv);
+ SvCUR_set(sv, *lp);
SvPOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2pv(%s)\n",sv,SvPV(sv)));
- return SvPV(sv);
+ DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
+ return SvPVX(sv);
+
+ tokensave:
+ if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
+ /* Sneaky stuff here */
+
+ tokensaveref:
+ sv = sv_newmortal();
+ *lp = strlen(tokenbuf);
+ sv_setpvn(sv, tokenbuf, *lp);
+ return SvPVX(sv);
+ }
+ else {
+ STRLEN len;
+
+#ifdef FIXNEGATIVEZERO
+ if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2])
+ strcpy(tokenbuf,"0");
+#endif
+ (void)SvUPGRADE(sv, SVt_PV);
+ len = *lp = strlen(tokenbuf);
+ s = SvGROW(sv, len + 1);
+ SvCUR_set(sv, len);
+ (void)strcpy(s, tokenbuf);
+ /* NO SvPOK_on(sv) here! */
+ return s;
+ }
+}
+
+/* This function is only called on magical items */
+bool
+sv_2bool(sv)
+register SV *sv;
+{
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+
+ if (!SvOK(sv))
+ return 0;
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ {
+ SV* tmpsv;
+ if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
+ return SvTRUE(tmpsv);
+ }
+#endif /* OVERLOAD */
+ return SvRV(sv) != 0;
+ }
+ if (SvPOKp(sv)) {
+ register XPV* Xpv;
+ if ((Xpv = (XPV*)SvANY(sv)) &&
+ (*Xpv->xpv_pv > '0' ||
+ Xpv->xpv_cur > 1 ||
+ (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
+ return 1;
+ else
+ return 0;
+ }
+ else {
+ if (SvIOKp(sv))
+ return SvIVX(sv) != 0;
+ else {
+ if (SvNOKp(sv))
+ return SvNVX(sv) != 0.0;
+ else
+ return FALSE;
+ }
+ }
}
/* Note: sv_setsv() should not be called with a source string that needs
- * be reused, since it may destroy the source string if it is marked
+ * to be reused, since it may destroy the source string if it is marked
* as temporary.
*/
SV *dstr;
register SV *sstr;
{
+ register U32 sflags;
+ register int dtype;
+ register int stype;
+
if (sstr == dstr)
return;
- if (SvREADONLY(dstr))
- fatal(no_modify);
+ if (SvTHINKFIRST(dstr)) {
+ if (SvREADONLY(dstr) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(dstr))
+ sv_unref(dstr);
+ }
if (!sstr)
sstr = &sv_undef;
+ stype = SvTYPE(sstr);
+ dtype = SvTYPE(dstr);
- if (SvTYPE(dstr) < SvTYPE(sstr))
- sv_upgrade(dstr, SvTYPE(sstr));
- else if (SvTYPE(dstr) == SVt_PV && SvTYPE(sstr) <= SVt_NV) {
- if (SvTYPE(sstr) <= SVt_IV)
- sv_upgrade(dstr, SVt_PVIV); /* handle discontinuities */
- else
- sv_upgrade(dstr, SVt_PVNV);
+ if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
+ sv_unglob(dstr); /* so fake GLOB won't perpetuate */
+ sv_setpvn(dstr, "", 0);
+ (void)SvPOK_only(dstr);
+ dtype = SvTYPE(dstr);
}
- else if (SvTYPE(dstr) == SVt_PVIV && SvTYPE(sstr) == SVt_NV)
- sv_upgrade(dstr, SVt_PVNV);
- switch (SvTYPE(sstr)) {
+#ifdef OVERLOAD
+ SvAMAGIC_off(dstr);
+#endif /* OVERLOAD */
+ /* There's a lot of redundancy below but we're going for speed here */
+
+ switch (stype) {
case SVt_NULL:
- if (SvTYPE(dstr) == SVt_REF) {
- sv_free((SV*)SvANY(dstr));
- SvANY(dstr) = 0;
- SvTYPE(dstr) = SVt_NULL;
- }
- else
- SvOK_off(dstr);
+ (void)SvOK_off(dstr);
return;
- case SVt_REF:
- SvTUP(sstr);
- if (SvTYPE(dstr) == SVt_REF) {
- SvANY(dstr) = (void*)sv_ref((SV*)SvANY(sstr));
+ case SVt_IV:
+ if (dtype <= SVt_PV) {
+ if (dtype < SVt_IV)
+ sv_upgrade(dstr, SVt_IV);
+ else if (dtype == SVt_NV)
+ sv_upgrade(dstr, SVt_PVNV);
+ else if (dtype <= SVt_PV)
+ sv_upgrade(dstr, SVt_PVIV);
}
- else {
- if (SvMAGICAL(dstr))
- fatal("Can't assign a reference to a magical variable");
- sv_clear(dstr);
- SvTYPE(dstr) = SVt_REF;
- SvANY(dstr) = (void*)sv_ref((SV*)SvANY(sstr));
- SvOK_off(dstr);
- }
- SvTDOWN(sstr);
- return;
+ break;
+ case SVt_NV:
+ if (dtype <= SVt_PVIV) {
+ if (dtype < SVt_NV)
+ sv_upgrade(dstr, SVt_NV);
+ else if (dtype == SVt_PVIV)
+ sv_upgrade(dstr, SVt_PVNV);
+ else if (dtype <= SVt_PV)
+ sv_upgrade(dstr, SVt_PVNV);
+ }
+ break;
+ case SVt_RV:
+ if (dtype < SVt_RV)
+ sv_upgrade(dstr, SVt_RV);
+ else if (dtype == SVt_PVGV &&
+ SvTYPE(SvRV(sstr)) == SVt_PVGV) {
+ sstr = SvRV(sstr);
+ if (sstr == dstr) {
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_on(dstr);
+ GvMULTI_on(dstr);
+ return;
+ }
+ goto glob_assign;
+ }
+ break;
+ case SVt_PV:
+ if (dtype < SVt_PV)
+ sv_upgrade(dstr, SVt_PV);
+ break;
+ case SVt_PVIV:
+ if (dtype < SVt_PVIV)
+ sv_upgrade(dstr, SVt_PVIV);
+ break;
+ case SVt_PVNV:
+ if (dtype < SVt_PVNV)
+ sv_upgrade(dstr, SVt_PVNV);
+ break;
+
+ case SVt_PVLV:
+ sv_upgrade(dstr, SVt_PVNV);
+ break;
+
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVIO:
+ if (op)
+ croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
+ op_name[op->op_type]);
+ else
+ croak("Bizarre copy of %s", sv_reftype(sstr, 0));
+ break;
+
case SVt_PVGV:
- SvTUP(sstr);
- if (SvTYPE(dstr) == SVt_PVGV) {
- SvOK_off(dstr);
- if (!GvAV(sstr))
- gv_AVadd(sstr);
- if (!GvHV(sstr))
- gv_HVadd(sstr);
- if (!GvIO(sstr))
- GvIO(sstr) = newIO();
- if (GvGP(dstr))
- gp_free(dstr);
+ if (dtype <= SVt_PVGV) {
+ glob_assign:
+ if (dtype != SVt_PVGV) {
+ char *name = GvNAME(sstr);
+ STRLEN len = GvNAMELEN(sstr);
+ sv_upgrade(dstr, SVt_PVGV);
+ sv_magic(dstr, dstr, '*', name, len);
+ GvSTASH(dstr) = GvSTASH(sstr);
+ GvNAME(dstr) = savepvn(name, len);
+ GvNAMELEN(dstr) = len;
+ SvFAKE_on(dstr); /* can coerce to non-glob */
+ }
+ (void)SvOK_off(dstr);
+ GvINTRO_off(dstr); /* one-shot flag */
+ gp_free(dstr);
GvGP(dstr) = gp_ref(GvGP(sstr));
- SvTDOWN(sstr);
+ SvTAINT(dstr);
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_on(dstr);
+ GvMULTI_on(dstr);
return;
}
/* FALL THROUGH */
default:
- if (SvMAGICAL(sstr))
+ if (dtype < stype)
+ sv_upgrade(dstr, stype);
+ if (SvGMAGICAL(sstr))
mg_get(sstr);
- /* XXX */
- break;
}
- SvPRIVATE(dstr) = SvPRIVATE(sstr);
- SvSTORAGE(dstr) = SvSTORAGE(sstr);
-
- if (SvPOK(sstr)) {
-
- SvTUP(sstr);
+ sflags = SvFLAGS(sstr);
+
+ if (sflags & SVf_ROK) {
+ if (dtype >= SVt_PV) {
+ if (dtype == SVt_PVGV) {
+ SV *sref = SvREFCNT_inc(SvRV(sstr));
+ SV *dref = 0;
+ int intro = GvINTRO(dstr);
+
+ if (intro) {
+ GP *gp;
+ GvGP(dstr)->gp_refcnt--;
+ GvINTRO_off(dstr); /* one-shot flag */
+ Newz(602,gp, 1, GP);
+ GvGP(dstr) = gp;
+ GvREFCNT(dstr) = 1;
+ GvSV(dstr) = NEWSV(72,0);
+ GvLINE(dstr) = curcop->cop_line;
+ GvEGV(dstr) = dstr;
+ }
+ GvMULTI_on(dstr);
+ switch (SvTYPE(sref)) {
+ case SVt_PVAV:
+ if (intro)
+ SAVESPTR(GvAV(dstr));
+ else
+ dref = (SV*)GvAV(dstr);
+ GvAV(dstr) = (AV*)sref;
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_AV_on(dstr);
+ break;
+ case SVt_PVHV:
+ if (intro)
+ SAVESPTR(GvHV(dstr));
+ else
+ dref = (SV*)GvHV(dstr);
+ GvHV(dstr) = (HV*)sref;
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_HV_on(dstr);
+ break;
+ case SVt_PVCV:
+ if (intro)
+ SAVESPTR(GvCV(dstr));
+ else {
+ CV* cv = GvCV(dstr);
+ if (cv) {
+ dref = (SV*)cv;
+ if (dowarn && sref != dref &&
+ !GvCVGEN((GV*)dstr) &&
+ (CvROOT(cv) || CvXSUB(cv)) )
+ warn("Subroutine %s redefined",
+ GvENAME((GV*)dstr));
+ SvFAKE_on(cv);
+ }
+ }
+ if (GvCV(dstr) != (CV*)sref) {
+ GvCV(dstr) = (CV*)sref;
+ GvASSUMECV_on(dstr);
+ }
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_CV_on(dstr);
+ break;
+ case SVt_PVIO:
+ if (intro)
+ SAVESPTR(GvIOp(dstr));
+ else
+ dref = (SV*)GvIOp(dstr);
+ GvIOp(dstr) = (IO*)sref;
+ break;
+ default:
+ if (intro)
+ SAVESPTR(GvSV(dstr));
+ else
+ dref = (SV*)GvSV(dstr);
+ GvSV(dstr) = sref;
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_SV_on(dstr);
+ break;
+ }
+ if (dref)
+ SvREFCNT_dec(dref);
+ if (intro)
+ SAVEFREESV(sref);
+ SvTAINT(dstr);
+ return;
+ }
+ if (SvPVX(dstr)) {
+ Safefree(SvPVX(dstr));
+ SvLEN(dstr)=SvCUR(dstr)=0;
+ }
+ }
+ (void)SvOK_off(dstr);
+ SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
+ SvROK_on(dstr);
+ if (sflags & SVp_NOK) {
+ SvNOK_on(dstr);
+ SvNVX(dstr) = SvNVX(sstr);
+ }
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
+ SvIVX(dstr) = SvIVX(sstr);
+ }
+#ifdef OVERLOAD
+ if (SvAMAGIC(sstr)) {
+ SvAMAGIC_on(dstr);
+ }
+#endif /* OVERLOAD */
+ }
+ else if (sflags & SVp_POK) {
/*
* Check to see if we can just swipe the string. If so, it's a
* possible small lose on short strings, but a big win on long ones.
- * It might even be a win on short strings if SvPV(dstr)
- * has to be allocated and SvPV(sstr) has to be freed.
+ * It might even be a win on short strings if SvPVX(dstr)
+ * has to be allocated and SvPVX(sstr) has to be freed.
*/
- if (SvTEMP(sstr)) { /* slated for free anyway? */
- if (SvPOK(dstr)) {
- SvOOK_off(dstr);
- Safefree(SvPV(dstr));
+ if (SvTEMP(sstr) && /* slated for free anyway? */
+ !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
+ {
+ if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
+ if (SvOOK(dstr)) {
+ SvFLAGS(dstr) &= ~SVf_OOK;
+ Safefree(SvPVX(dstr) - SvIVX(dstr));
+ }
+ else
+ Safefree(SvPVX(dstr));
}
- SvPV_set(dstr, SvPV(sstr));
+ (void)SvPOK_only(dstr);
+ SvPV_set(dstr, SvPVX(sstr));
SvLEN_set(dstr, SvLEN(sstr));
SvCUR_set(dstr, SvCUR(sstr));
- SvTYPE(dstr) = SvTYPE(sstr);
- SvPOK_only(dstr);
SvTEMP_off(dstr);
+ (void)SvOK_off(sstr);
SvPV_set(sstr, Nullch);
SvLEN_set(sstr, 0);
- SvPOK_off(sstr); /* wipe out any weird flags */
- SvTYPE(sstr) = 0; /* so sstr frees uneventfully */
+ SvCUR_set(sstr, 0);
+ SvTEMP_off(sstr);
}
else { /* have to copy actual string */
- if (SvPV(dstr)) { /* XXX ck type */
- SvOOK_off(dstr);
- }
- sv_setpvn(dstr,SvPV(sstr),SvCUR(sstr));
+ STRLEN len = SvCUR(sstr);
+
+ SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
+ Move(SvPVX(sstr),SvPVX(dstr),len,char);
+ SvCUR_set(dstr, len);
+ *SvEND(dstr) = '\0';
+ (void)SvPOK_only(dstr);
}
/*SUPPRESS 560*/
- if (SvNOK(sstr)) {
+ if (sflags & SVp_NOK) {
SvNOK_on(dstr);
- SvNV(dstr) = SvNV(sstr);
+ SvNVX(dstr) = SvNVX(sstr);
}
- if (SvIOK(sstr)) {
- SvIOK_on(dstr);
- SvIV(dstr) = SvIV(sstr);
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
+ SvIVX(dstr) = SvIVX(sstr);
}
}
- else if (SvNOK(sstr)) {
- SvTUP(sstr);
- SvNV(dstr) = SvNV(sstr);
- SvNOK_only(dstr);
+ else if (sflags & SVp_NOK) {
+ SvNVX(dstr) = SvNVX(sstr);
+ (void)SvNOK_only(dstr);
if (SvIOK(sstr)) {
- SvIOK_on(dstr);
- SvIV(dstr) = SvIV(sstr);
+ (void)SvIOK_on(dstr);
+ SvIVX(dstr) = SvIVX(sstr);
}
}
- else if (SvIOK(sstr)) {
- SvTUP(sstr);
- SvIOK_only(dstr);
- SvIV(dstr) = SvIV(sstr);
+ else if (sflags & SVp_IOK) {
+ (void)SvIOK_only(dstr);
+ SvIVX(dstr) = SvIVX(sstr);
}
else {
- SvTUP(sstr);
- SvOK_off(dstr);
+ (void)SvOK_off(dstr);
}
- SvTDOWN(dstr);
+ SvTAINT(dstr);
}
void
register char *ptr;
register STRLEN len;
{
- if (!SvUPGRADE(sv, SVt_PV))
+ assert(len >= 0);
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
+ if (!ptr) {
+ (void)SvOK_off(sv);
+ return;
+ }
+ if (SvTYPE(sv) >= SVt_PV) {
+ if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
+ sv_unglob(sv);
+ }
+ else if (!sv_upgrade(sv, SVt_PV))
return;
SvGROW(sv, len + 1);
- if (ptr)
- Move(ptr,SvPV(sv),len,char);
+ Move(ptr,SvPVX(sv),len,char);
SvCUR_set(sv, len);
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
- SvTDOWN(sv);
+ (void)SvPOK_only(sv); /* validate pointer */
+ SvTAINT(sv);
}
void
{
register STRLEN len;
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (!ptr)
- ptr = "";
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
+ if (!ptr) {
+ (void)SvOK_off(sv);
+ return;
+ }
len = strlen(ptr);
- if (!SvUPGRADE(sv, SVt_PV))
+ if (SvTYPE(sv) >= SVt_PV) {
+ if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
+ sv_unglob(sv);
+ }
+ else if (!sv_upgrade(sv, SVt_PV))
return;
SvGROW(sv, len + 1);
- Move(ptr,SvPV(sv),len+1,char);
+ Move(ptr,SvPVX(sv),len+1,char);
+ SvCUR_set(sv, len);
+ (void)SvPOK_only(sv); /* validate pointer */
+ SvTAINT(sv);
+}
+
+void
+sv_usepvn(sv,ptr,len)
+register SV *sv;
+register char *ptr;
+register STRLEN len;
+{
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
+ if (!SvUPGRADE(sv, SVt_PV))
+ return;
+ if (!ptr) {
+ (void)SvOK_off(sv);
+ return;
+ }
+ if (SvPVX(sv))
+ Safefree(SvPVX(sv));
+ Renew(ptr, len+1, char);
+ SvPVX(sv) = ptr;
SvCUR_set(sv, len);
- SvPOK_only(sv); /* validate pointer */
- SvTDOWN(sv);
+ SvLEN_set(sv, len+1);
+ *SvEND(sv) = '\0';
+ (void)SvPOK_only(sv); /* validate pointer */
+ SvTAINT(sv);
}
void
{
register STRLEN delta;
- if (!ptr || !SvPOK(sv))
+ if (!ptr || !SvPOKp(sv))
return;
- if (SvREADONLY(sv))
- fatal(no_modify);
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
if (SvTYPE(sv) < SVt_PVIV)
sv_upgrade(sv,SVt_PVIV);
if (!SvOOK(sv)) {
- SvIV(sv) = 0;
+ SvIVX(sv) = 0;
SvFLAGS(sv) |= SVf_OOK;
}
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK);
- delta = ptr - SvPV(sv);
+ SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
+ delta = ptr - SvPVX(sv);
SvLEN(sv) -= delta;
SvCUR(sv) -= delta;
- SvPV(sv) += delta;
- SvIV(sv) += delta;
+ SvPVX(sv) += delta;
+ SvIVX(sv) += delta;
}
void
register char *ptr;
register STRLEN len;
{
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (!(SvPOK(sv)))
- (void)sv_2pv(sv);
- SvGROW(sv, SvCUR(sv) + len + 1);
- Move(ptr,SvPV(sv)+SvCUR(sv),len,char);
+ STRLEN tlen;
+ char *junk;
+
+ junk = SvPV_force(sv, tlen);
+ SvGROW(sv, tlen + len + 1);
+ if (ptr == junk)
+ ptr = SvPVX(sv);
+ Move(ptr,SvPVX(sv)+tlen,len,char);
SvCUR(sv) += len;
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
- SvTDOWN(sv);
+ (void)SvPOK_only(sv); /* validate pointer */
+ SvTAINT(sv);
}
void
register SV *sstr;
{
char *s;
+ STRLEN len;
if (!sstr)
return;
- if (s = SvPVn(sstr)) {
- if (SvPOK(sstr))
- sv_catpvn(dstr,s,SvCUR(sstr));
- else
- sv_catpv(dstr,s);
- }
+ if (s = SvPV(sstr, len))
+ sv_catpvn(dstr,s,len);
}
void
register char *ptr;
{
register STRLEN len;
+ STRLEN tlen;
+ char *junk;
- if (SvREADONLY(sv))
- fatal(no_modify);
if (!ptr)
return;
- if (!(SvPOK(sv)))
- (void)sv_2pv(sv);
+ junk = SvPV_force(sv, tlen);
len = strlen(ptr);
- SvGROW(sv, SvCUR(sv) + len + 1);
- Move(ptr,SvPV(sv)+SvCUR(sv),len+1,char);
+ SvGROW(sv, tlen + len + 1);
+ if (ptr == junk)
+ ptr = SvPVX(sv);
+ Move(ptr,SvPVX(sv)+tlen,len+1,char);
SvCUR(sv) += len;
- SvPOK_only(sv); /* validate pointer */
- SvTDOWN(sv);
+ (void)SvPOK_only(sv); /* validate pointer */
+ SvTAINT(sv);
}
SV *
{
register SV *sv;
- sv = (SV*)new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (len) {
sv_upgrade(sv, SVt_PV);
SvGROW(sv, len + 1);
sv_magic(sv, obj, how, name, namlen)
register SV *sv;
SV *obj;
-char how;
+int how;
char *name;
-STRLEN namlen;
+I32 namlen;
{
MAGIC* mg;
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (!SvUPGRADE(sv, SVt_PVMG))
- return;
+ if (SvREADONLY(sv) && curcop != &compiling && !strchr("gB", how))
+ croak(no_modify);
+ if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
+ if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
+ if (how == 't')
+ mg->mg_len |= 1;
+ return;
+ }
+ }
+ else {
+ if (!SvUPGRADE(sv, SVt_PVMG))
+ return;
+ }
Newz(702,mg, 1, MAGIC);
mg->mg_moremagic = SvMAGIC(sv);
- SvMAGICAL_on(sv);
+
SvMAGIC(sv) = mg;
- mg->mg_obj = obj;
- mg->mg_type = how;
- if (name) {
- mg->mg_ptr = nsavestr(name, namlen);
- mg->mg_len = namlen;
+ if (!obj || obj == sv || how == '#')
+ mg->mg_obj = obj;
+ else {
+ mg->mg_obj = SvREFCNT_inc(obj);
+ mg->mg_flags |= MGf_REFCOUNTED;
}
+ mg->mg_type = how;
+ mg->mg_len = namlen;
+ if (name && namlen >= 0)
+ mg->mg_ptr = savepvn(name, namlen);
switch (how) {
case 0:
mg->mg_virtual = &vtbl_sv;
break;
+#ifdef OVERLOAD
+ case 'A':
+ mg->mg_virtual = &vtbl_amagic;
+ break;
+ case 'a':
+ mg->mg_virtual = &vtbl_amagicelem;
+ break;
+ case 'c':
+ mg->mg_virtual = 0;
+ break;
+#endif /* OVERLOAD */
case 'B':
mg->mg_virtual = &vtbl_bm;
break;
- case 'D':
- mg->mg_virtual = &vtbl_dbm;
- break;
- case 'd':
- mg->mg_virtual = &vtbl_dbmelem;
- break;
case 'E':
mg->mg_virtual = &vtbl_env;
break;
case 'g':
mg->mg_virtual = &vtbl_mglob;
break;
+ case 'I':
+ mg->mg_virtual = &vtbl_isa;
+ break;
+ case 'i':
+ mg->mg_virtual = &vtbl_isaelem;
+ break;
case 'L':
+ SvRMAGICAL_on(sv);
mg->mg_virtual = 0;
break;
case 'l':
mg->mg_virtual = &vtbl_dbline;
break;
+ case 'P':
+ mg->mg_virtual = &vtbl_pack;
+ break;
+ case 'p':
+ case 'q':
+ mg->mg_virtual = &vtbl_packelem;
+ break;
case 'S':
mg->mg_virtual = &vtbl_sig;
break;
case 's':
mg->mg_virtual = &vtbl_sigelem;
break;
+ case 't':
+ mg->mg_virtual = &vtbl_taint;
+ mg->mg_len = 1;
+ break;
case 'U':
mg->mg_virtual = &vtbl_uvar;
break;
case '#':
mg->mg_virtual = &vtbl_arylen;
break;
+ case '.':
+ mg->mg_virtual = &vtbl_pos;
+ break;
+ case '~': /* Reserved for use by extensions not perl internals. */
+ /* Useful for attaching extension internal data to perl vars. */
+ /* Note that multiple extensions may clash if magical scalars */
+ /* etc holding private data from one are passed to another. */
+ SvRMAGICAL_on(sv);
+ break;
default:
- fatal("Don't know how to handle magic of type '%c'", how);
+ croak("Don't know how to handle magic of type '%c'", how);
}
+ mg_magical(sv);
+ if (SvGMAGICAL(sv))
+ SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
}
-void
-sv_insert(bigstr,offset,len,little,littlelen)
-SV *bigstr;
-STRLEN offset;
-STRLEN len;
-char *little;
-STRLEN littlelen;
+int
+sv_unmagic(sv, type)
+SV* sv;
+int type;
{
- register char *big;
- register char *mid;
- register char *midend;
+ MAGIC* mg;
+ MAGIC** mgp;
+ if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
+ return 0;
+ mgp = &SvMAGIC(sv);
+ for (mg = *mgp; mg; mg = *mgp) {
+ if (mg->mg_type == type) {
+ MGVTBL* vtbl = mg->mg_virtual;
+ *mgp = mg->mg_moremagic;
+ if (vtbl && vtbl->svt_free)
+ (*vtbl->svt_free)(sv, mg);
+ if (mg->mg_ptr && mg->mg_type != 'g')
+ Safefree(mg->mg_ptr);
+ if (mg->mg_flags & MGf_REFCOUNTED)
+ SvREFCNT_dec(mg->mg_obj);
+ Safefree(mg);
+ }
+ else
+ mgp = &mg->mg_moremagic;
+ }
+ if (!SvMAGIC(sv)) {
+ SvMAGICAL_off(sv);
+ SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
+ }
+
+ return 0;
+}
+
+void
+sv_insert(bigstr,offset,len,little,littlelen)
+SV *bigstr;
+STRLEN offset;
+STRLEN len;
+char *little;
+STRLEN littlelen;
+{
+ register char *big;
+ register char *mid;
+ register char *midend;
register char *bigend;
register I32 i;
- if (SvREADONLY(bigstr))
- fatal(no_modify);
- SvPOK_only(bigstr);
+ if (!bigstr)
+ croak("Can't modify non-existent substring");
+ SvPV_force(bigstr, na);
i = littlelen - len;
if (i > 0) { /* string might grow */
- if (!SvUPGRADE(bigstr, SVt_PV))
- return;
- SvGROW(bigstr, SvCUR(bigstr) + i + 1);
- big = SvPV(bigstr);
+ big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
mid = big + offset + len;
midend = bigend = big + SvCUR(bigstr);
bigend += i;
return;
}
else if (i == 0) {
- Move(little,SvPV(bigstr)+offset,len,char);
+ Move(little,SvPVX(bigstr)+offset,len,char);
SvSETMAGIC(bigstr);
return;
}
- big = SvPV(bigstr);
+ big = SvPVX(bigstr);
mid = big + offset;
midend = mid + len;
bigend = big + SvCUR(bigstr);
if (midend > bigend)
- fatal("panic: sv_insert");
+ croak("panic: sv_insert");
if (mid - big > bigend - midend) { /* faster to shorten from end */
if (littlelen) {
register SV *nsv;
{
U32 refcnt = SvREFCNT(sv);
- if (SvREADONLY(sv))
- fatal(no_modify);
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
if (SvREFCNT(nsv) != 1)
warn("Reference miscount in sv_replace()");
if (SvMAGICAL(sv)) {
- SvUPGRADE(nsv, SVt_PVMG);
+ if (SvMAGICAL(nsv))
+ mg_free(nsv);
+ else
+ sv_upgrade(nsv, SVt_PVMG);
SvMAGIC(nsv) = SvMAGIC(sv);
- SvMAGICAL_on(nsv);
+ SvFLAGS(nsv) |= SvMAGICAL(sv);
SvMAGICAL_off(sv);
SvMAGIC(sv) = 0;
}
sv_clear(sv);
StructCopy(nsv,sv,SV);
SvREFCNT(sv) = refcnt;
- Safefree(nsv);
+ del_SV(nsv);
}
void
assert(sv);
assert(SvREFCNT(sv) == 0);
+ if (SvOBJECT(sv)) {
+ dSP;
+ GV* destructor;
+
+ if (defstash) { /* Still have a symbol table? */
+ destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
+
+ ENTER;
+ SAVEFREESV(SvSTASH(sv));
+ if (destructor && GvCV(destructor)) {
+ SV ref;
+
+ Zero(&ref, 1, SV);
+ sv_upgrade(&ref, SVt_RV);
+ SAVEI32(SvREFCNT(sv));
+ SvRV(&ref) = SvREFCNT_inc(sv);
+ SvROK_on(&ref);
+
+ EXTEND(SP, 2);
+ PUSHMARK(SP);
+ PUSHs(&ref);
+ PUTBACK;
+ perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR);
+ del_XRV(SvANY(&ref));
+ }
+ LEAVE;
+ }
+ else
+ SvREFCNT_dec(SvSTASH(sv));
+ if (SvOBJECT(sv)) {
+ SvOBJECT_off(sv); /* Curse the object. */
+ if (SvTYPE(sv) != SVt_PVIO)
+ --sv_objcount; /* XXX Might want something more general */
+ }
+ }
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
+ mg_free(sv);
switch (SvTYPE(sv)) {
- case SVt_PVFM:
- goto freemagic;
+ case SVt_PVIO:
+ io_close((IO*)sv);
+ Safefree(IoTOP_NAME(sv));
+ Safefree(IoFMT_NAME(sv));
+ Safefree(IoBOTTOM_NAME(sv));
+ /* FALL THROUGH */
case SVt_PVBM:
- goto freemagic;
- case SVt_PVGV:
- gp_free(sv);
- goto freemagic;
+ goto freescalar;
case SVt_PVCV:
- op_free(CvSTART(sv));
- goto freemagic;
+ case SVt_PVFM:
+ cv_undef((CV*)sv);
+ goto freescalar;
case SVt_PVHV:
- hv_clear(sv, FALSE);
- goto freemagic;
+ hv_undef((HV*)sv);
+ break;
case SVt_PVAV:
- av_clear(sv);
- goto freemagic;
+ av_undef((AV*)sv);
+ break;
+ case SVt_PVGV:
+ gp_free(sv);
+ Safefree(GvNAME(sv));
+ /* FALL THROUGH */
case SVt_PVLV:
- goto freemagic;
case SVt_PVMG:
- freemagic:
- if (SvMAGICAL(sv))
- mg_freeall(sv);
case SVt_PVNV:
case SVt_PVIV:
- SvOOK_off(sv);
+ freescalar:
+ (void)SvOOK_off(sv);
/* FALL THROUGH */
case SVt_PV:
- if (SvPV(sv))
- Safefree(SvPV(sv));
+ case SVt_RV:
+ if (SvROK(sv))
+ SvREFCNT_dec(SvRV(sv));
+ else if (SvPVX(sv))
+ Safefree(SvPVX(sv));
break;
+/*
case SVt_NV:
- break;
case SVt_IV:
- break;
- case SVt_REF:
- sv_free((SV*)SvANY(sv));
- break;
case SVt_NULL:
break;
+*/
}
switch (SvTYPE(sv)) {
case SVt_NULL:
break;
- case SVt_REF:
- break;
case SVt_IV:
del_XIV(SvANY(sv));
break;
case SVt_NV:
del_XNV(SvANY(sv));
break;
+ case SVt_RV:
+ del_XRV(SvANY(sv));
+ break;
case SVt_PV:
del_XPV(SvANY(sv));
break;
case SVt_PVFM:
del_XPVFM(SvANY(sv));
break;
+ case SVt_PVIO:
+ del_XPVIO(SvANY(sv));
+ break;
}
- DEB(SvTYPE(sv) = 0xff;)
+ SvFLAGS(sv) &= SVf_BREAK;
+ SvFLAGS(sv) |= SVTYPEMASK;
}
SV *
-sv_ref(sv)
+sv_newref(sv)
SV* sv;
{
- SvREFCNT(sv)++;
+ if (sv)
+ SvREFCNT(sv)++;
return sv;
}
return;
}
if (SvREFCNT(sv) == 0) {
+ if (SvFLAGS(sv) & SVf_BREAK)
+ return;
warn("Attempt to free unreferenced scalar");
return;
}
if (--SvREFCNT(sv) > 0)
return;
- if (SvSTORAGE(sv) == 'O') {
- dSP;
- BINOP myop; /* fake syntax tree node */
- GV* destructor;
-
- SvSTORAGE(sv) = 0; /* Curse the object. */
-
- ENTER;
- SAVESPTR(curcop);
- SAVESPTR(op);
- curcop = &compiling;
- curstash = SvSTASH(sv);
- destructor = gv_fetchpv("DESTROY", FALSE);
-
- if (GvCV(destructor)) {
- SV* ref = sv_mortalcopy(&sv_undef);
- SvREFCNT(ref) = 1;
- sv_upgrade(ref, SVt_REF);
- SvANY(ref) = (void*)sv_ref(sv);
-
- op = (OP*)&myop;
- Zero(op, 1, OP);
- myop.op_last = (OP*)&myop;
- myop.op_flags = OPf_STACKED;
- myop.op_next = Nullop;
-
- EXTEND(SP, 2);
- PUSHs((SV*)destructor);
- pp_pushmark();
- PUSHs(ref);
- PUTBACK;
- op = pp_entersubr();
- run();
- stack_sp--;
- LEAVE; /* Will eventually free sv as ordinary item. */
- return;
- }
- LEAVE;
+#ifdef DEBUGGING
+ if (SvTEMP(sv)) {
+ warn("Attempt to free temp prematurely");
+ return;
}
+#endif
sv_clear(sv);
- DEB(SvTYPE(sv) = 0xff;)
del_SV(sv);
}
sv_len(sv)
register SV *sv;
{
- I32 paren;
- I32 i;
- char *s;
+ char *junk;
+ STRLEN len;
if (!sv)
return 0;
- if (SvMAGICAL(sv))
- return mg_len(sv);
-
- if (!(SvPOK(sv))) {
- (void)sv_2pv(sv);
- if (!SvOK(sv))
- return 0;
- }
- if (SvPV(sv))
- return SvCUR(sv);
+ if (SvGMAGICAL(sv))
+ len = mg_len(sv);
else
- return 0;
+ junk = SvPV(sv, len);
+ return len;
}
I32
register SV *str2;
{
char *pv1;
- U32 cur1;
+ STRLEN cur1;
char *pv2;
- U32 cur2;
+ STRLEN cur2;
if (!str1) {
pv1 = "";
cur1 = 0;
}
- else {
- if (SvMAGICAL(str1))
- mg_get(str1);
- if (!SvPOK(str1)) {
- (void)sv_2pv(str1);
- if (!SvPOK(str1))
- str1 = &sv_no;
- }
- pv1 = SvPV(str1);
- cur1 = SvCUR(str1);
- }
+ else
+ pv1 = SvPV(str1, cur1);
if (!str2)
return !cur1;
- else {
- if (SvMAGICAL(str2))
- mg_get(str2);
- if (!SvPOK(str2)) {
- (void)sv_2pv(str2);
- if (!SvPOK(str2))
- return !cur1;
- }
- pv2 = SvPV(str2);
- cur2 = SvCUR(str2);
- }
+ else
+ pv2 = SvPV(str2, cur2);
if (cur1 != cur2)
return 0;
{
I32 retval;
char *pv1;
- U32 cur1;
+ STRLEN cur1;
char *pv2;
- U32 cur2;
+ STRLEN cur2;
if (!str1) {
pv1 = "";
cur1 = 0;
}
- else {
- if (SvMAGICAL(str1))
- mg_get(str1);
- if (!SvPOK(str1)) {
- (void)sv_2pv(str1);
- if (!SvPOK(str1))
- str1 = &sv_no;
- }
- pv1 = SvPV(str1);
- cur1 = SvCUR(str1);
- }
+ else
+ pv1 = SvPV(str1, cur1);
if (!str2) {
pv2 = "";
cur2 = 0;
}
- else {
- if (SvMAGICAL(str2))
- mg_get(str2);
- if (!SvPOK(str2)) {
- (void)sv_2pv(str2);
- if (!SvPOK(str2))
- str2 = &sv_no;
- }
- pv2 = SvPV(str2);
- cur2 = SvCUR(str2);
- }
+ else
+ pv2 = SvPV(str2, cur2);
if (!cur1)
return cur2 ? -1 : 0;
if (cur1 < cur2) {
/*SUPPRESS 560*/
- if (retval = memcmp(pv1, pv2, cur1))
+ if (retval = memcmp((void*)pv1, (void*)pv2, cur1))
return retval < 0 ? -1 : 1;
else
return -1;
}
/*SUPPRESS 560*/
- else if (retval = memcmp(pv1, pv2, cur2))
+ else if (retval = memcmp((void*)pv1, (void*)pv2, cur2))
return retval < 0 ? -1 : 1;
else if (cur1 == cur2)
return 0;
register FILE *fp;
I32 append;
{
- register char *bp; /* we're going to steal some values */
- register I32 cnt; /* from the stdio struct and put EVERYTHING */
- register STDCHAR *ptr; /* in the innermost loop into registers */
- register I32 newline = rschar;/* (assuming >= 6 registers) */
+ char *rsptr;
+ STRLEN rslen;
+ register STDCHAR rslast;
+ register STDCHAR *bp;
+ register I32 cnt;
I32 i;
+
+#ifdef FAST_SV_GETS
+ /*
+ * We're going to steal some values from the stdio struct
+ * and put EVERYTHING in the innermost loop into registers.
+ */
+ register STDCHAR *ptr;
STRLEN bpx;
I32 shortbuffered;
+#endif
- if (SvREADONLY(sv))
- fatal(no_modify);
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv))
+ sv_unref(sv);
+ }
if (!SvUPGRADE(sv, SVt_PV))
- return;
- if (rspara) { /* have to do this both before and after */
+ return 0;
+
+ if (RsSNARF(rs)) {
+ rsptr = NULL;
+ rslen = 0;
+ }
+ else if (RsPARA(rs)) {
+ rsptr = "\n\n";
+ rslen = 2;
+ }
+ else
+ rsptr = SvPV(rs, rslen);
+ rslast = rslen ? rsptr[rslen - 1] : '\0';
+
+ if (RsPARA(rs)) { /* have to do this both before and after */
do { /* to make sure file boundaries work right */
+ if (feof(fp))
+ return 0;
i = getc(fp);
if (i != '\n') {
+ if (i == -1)
+ return 0;
ungetc(i,fp);
break;
}
} while (i != EOF);
}
-#ifdef STDSTDIO /* Here is some breathtakingly efficient cheating */
- cnt = fp->_cnt; /* get count into register */
- SvPOK_only(sv); /* validate pointer */
+
+#ifdef FAST_SV_GETS
+
+ /* Here is some breathtakingly efficient cheating */
+
+ cnt = FILE_cnt(fp); /* get count into register */
+ (void)SvPOK_only(sv); /* validate pointer */
if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
if (cnt > 80 && SvLEN(sv) > append) {
shortbuffered = cnt - SvLEN(sv) + append + 1;
}
else
shortbuffered = 0;
- bp = SvPV(sv) + append; /* move these two too to registers */
- ptr = fp->_ptr;
+ bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
+ ptr = FILE_ptr(fp);
for (;;) {
screamer:
if (cnt > 0) {
- while (--cnt >= 0) { /* this */ /* eat */
- if ((*bp++ = *ptr++) == newline) /* really */ /* dust */
- goto thats_all_folks; /* screams */ /* sed :-) */
+ if (rslen) {
+ while (--cnt >= 0) { /* this | eat */
+ if ((*bp++ = *ptr++) == rslast) /* really | dust */
+ goto thats_all_folks; /* screams | sed :-) */
+ }
+ }
+ else {
+ memcpy((char*)bp, (char*)ptr, cnt); /* this | eat */
+ bp += cnt; /* screams | dust */
+ ptr += cnt; /* louder | sed :-) */
+ cnt = 0;
}
}
- if (shortbuffered) { /* oh well, must extend */
+ if (shortbuffered) { /* oh well, must extend */
cnt = shortbuffered;
shortbuffered = 0;
- bpx = bp - SvPV(sv); /* prepare for possible relocation */
+ bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
SvCUR_set(sv, bpx);
SvGROW(sv, SvLEN(sv) + append + cnt + 2);
- bp = SvPV(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
continue;
}
- fp->_cnt = cnt; /* deregisterize cnt and ptr */
- fp->_ptr = ptr;
+ FILE_cnt(fp) = cnt; /* deregisterize cnt and ptr */
+ FILE_ptr(fp) = ptr;
i = _filbuf(fp); /* get more characters */
- cnt = fp->_cnt;
- ptr = fp->_ptr; /* reregisterize cnt and ptr */
+ cnt = FILE_cnt(fp);
+ ptr = FILE_ptr(fp); /* reregisterize cnt and ptr */
+
+ if (i == EOF) /* all done for ever? */
+ goto thats_really_all_folks;
- bpx = bp - SvPV(sv); /* prepare for possible relocation */
+ bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
SvCUR_set(sv, bpx);
SvGROW(sv, bpx + cnt + 2);
- bp = SvPV(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
+
+ *bp++ = i; /* store character from _filbuf */
- if (i == newline) { /* all done for now? */
- *bp++ = i;
+ if (rslen && (STDCHAR)i == rslast) /* all done for now? */
goto thats_all_folks;
- }
- else if (i == EOF) /* all done for ever? */
- goto thats_really_all_folks;
- *bp++ = i; /* now go back to screaming loop */
}
thats_all_folks:
- if (rslen > 1 && (bp - SvPV(sv) < rslen || bcmp(bp - rslen, rs, rslen)))
- goto screamer; /* go back to the fray */
+ if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
+ bcmp((char*)bp - rslen, rsptr, rslen))
+ goto screamer; /* go back to the fray */
thats_really_all_folks:
if (shortbuffered)
cnt += shortbuffered;
- fp->_cnt = cnt; /* put these back or we're in trouble */
- fp->_ptr = ptr;
+ FILE_cnt(fp) = cnt; /* put these back or we're in trouble */
+ FILE_ptr(fp) = ptr;
*bp = '\0';
- SvCUR_set(sv, bp - SvPV(sv)); /* set length */
+ SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
+
+#else /* SV_FAST_GETS */
-#else /* !STDSTDIO */ /* The big, slow, and stupid way */
+ /*The big, slow, and stupid way */
{
- char buf[8192];
- register char * bpe = buf + sizeof(buf) - 3;
+ STDCHAR buf[8192];
screamer:
- bp = buf;
- while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ;
+ if (rslen) {
+ register STDCHAR *bpe = buf + sizeof(buf);
+ bp = buf;
+ while ((i = getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
+ ; /* keep reading */
+ cnt = bp - buf;
+ }
+ else {
+ cnt = fread((char*)buf, 1, sizeof(buf), fp);
+ i = cnt ? (U8)buf[cnt - 1] : EOF;
+ }
if (append)
- sv_catpvn(sv, buf, bp - buf);
+ sv_catpvn(sv, buf, cnt);
else
- sv_setpvn(sv, buf, bp - buf);
- if (i != EOF /* joy */
- &&
- (i != newline
- ||
- (rslen > 1
- &&
- (SvCUR(sv) < rslen
- ||
- bcmp(SvPV(sv) + SvCUR(sv) - rslen, rs, rslen)
- )
- )
- )
- )
+ sv_setpvn(sv, buf, cnt);
+
+ if (i != EOF && /* joy */
+ (!rslen ||
+ SvCUR(sv) < rslen ||
+ bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
{
append = -1;
goto screamer;
}
}
-#endif /* STDSTDIO */
+#endif /* SV_FAST_GETS */
- if (rspara) {
- while (i != EOF) {
+ if (RsPARA(rs)) { /* have to do this both before and after */
+ while (i != EOF) { /* to make sure file boundaries work right */
i = getc(fp);
if (i != '\n') {
ungetc(i,fp);
}
}
}
- return SvCUR(sv) - append ? SvPV(sv) : Nullch;
+
+ return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
}
void
register SV *sv;
{
register char *d;
+ int flags;
if (!sv)
return;
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (SvMAGICAL(sv))
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
+#endif /* OVERLOAD */
+ sv_unref(sv);
+ }
+ }
+ if (SvGMAGICAL(sv))
mg_get(sv);
- if (SvIOK(sv)) {
- ++SvIV(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_IOK) {
+ (void)SvIOK_only(sv);
+ ++SvIVX(sv);
return;
}
- if (SvNOK(sv)) {
- SvNV(sv) += 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_NOK) {
+ SvNVX(sv) += 1.0;
+ (void)SvNOK_only(sv);
return;
}
- if (!SvPOK(sv) || !*SvPV(sv)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
- SvNV(sv) = 1.0;
- SvNOK_only(sv);
+ if (!(flags & SVp_POK) || !*SvPVX(sv)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
+ SvNVX(sv) = 1.0;
+ (void)SvNOK_only(sv);
return;
}
- d = SvPV(sv);
+ d = SvPVX(sv);
while (isALPHA(*d)) d++;
while (isDIGIT(*d)) d++;
if (*d) {
- sv_setnv(sv,atof(SvPV(sv)) + 1.0); /* punt */
+ sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
return;
}
d--;
- while (d >= SvPV(sv)) {
+ while (d >= SvPVX(sv)) {
if (isDIGIT(*d)) {
if (++*d <= '9')
return;
/* oh,oh, the number grew */
SvGROW(sv, SvCUR(sv) + 2);
SvCUR(sv)++;
- for (d = SvPV(sv) + SvCUR(sv); d > SvPV(sv); d--)
+ for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
*d = d[-1];
if (isDIGIT(d[1]))
*d = '1';
sv_dec(sv)
register SV *sv;
{
+ int flags;
+
if (!sv)
return;
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (SvMAGICAL(sv))
+ if (SvTHINKFIRST(sv)) {
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
+#endif /* OVERLOAD */
+ sv_unref(sv);
+ }
+ }
+ if (SvGMAGICAL(sv))
mg_get(sv);
- if (SvIOK(sv)) {
- --SvIV(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_IOK) {
+ (void)SvIOK_only(sv);
+ --SvIVX(sv);
return;
}
- if (SvNOK(sv)) {
- SvNV(sv) -= 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_NOK) {
+ SvNVX(sv) -= 1.0;
+ (void)SvNOK_only(sv);
return;
}
- if (!SvPOK(sv)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
- SvNV(sv) = -1.0;
- SvNOK_only(sv);
+ if (!(flags & SVp_POK)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
+ SvNVX(sv) = -1.0;
+ (void)SvNOK_only(sv);
return;
}
- sv_setnv(sv,atof(SvPV(sv)) - 1.0);
+ sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
}
/* Make a string that will exist for the duration of the expression
* hopefully we won't free it until it has been assigned to a
* permanent location. */
+static void
+sv_mortalgrow()
+{
+ tmps_max += 128;
+ Renew(tmps_stack, tmps_max, SV*);
+}
+
SV *
sv_mortalcopy(oldstr)
SV *oldstr;
{
- register SV *sv = NEWSV(78,0);
+ register SV *sv;
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
sv_setsv(sv,oldstr);
- if (++tmps_ix > tmps_max) {
- tmps_max = tmps_ix;
- if (!(tmps_max & 127)) {
- if (tmps_max)
- Renew(tmps_stack, tmps_max + 128, SV*);
- else
- New(702,tmps_stack, 128, SV*);
- }
- }
+ if (++tmps_ix >= tmps_max)
+ sv_mortalgrow();
+ tmps_stack[tmps_ix] = sv;
+ SvTEMP_on(sv);
+ return sv;
+}
+
+SV *
+sv_newmortal()
+{
+ register SV *sv;
+
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = SVs_TEMP;
+ if (++tmps_ix >= tmps_max)
+ sv_mortalgrow();
tmps_stack[tmps_ix] = sv;
- if (SvPOK(sv))
- SvTEMP_on(sv);
return sv;
}
{
if (!sv)
return sv;
- if (SvREADONLY(sv))
- fatal(no_modify);
- if (++tmps_ix > tmps_max) {
- tmps_max = tmps_ix;
- if (!(tmps_max & 127)) {
- if (tmps_max)
- Renew(tmps_stack, tmps_max + 128, SV*);
- else
- New(704,tmps_stack, 128, SV*);
- }
- }
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+ if (++tmps_ix >= tmps_max)
+ sv_mortalgrow();
tmps_stack[tmps_ix] = sv;
- if (SvPOK(sv))
- SvTEMP_on(sv);
+ SvTEMP_on(sv);
return sv;
}
char *s;
STRLEN len;
{
- register SV *sv = NEWSV(79,0);
+ register SV *sv;
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (!len)
len = strlen(s);
sv_setpvn(sv,s,len);
newSVnv(n)
double n;
{
- register SV *sv = NEWSV(80,0);
+ register SV *sv;
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
sv_setnv(sv,n);
return sv;
}
SV *
newSViv(i)
-I32 i;
+IV i;
{
- register SV *sv = NEWSV(80,0);
+ register SV *sv;
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
sv_setiv(sv,i);
return sv;
}
+SV *
+newRV(ref)
+SV *ref;
+{
+ register SV *sv;
+
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
+ sv_upgrade(sv, SVt_RV);
+ SvTEMP_off(ref);
+ SvRV(sv) = SvREFCNT_inc(ref);
+ SvROK_on(sv);
+ return sv;
+}
+
/* make an exact duplicate of old */
SV *
newSVsv(old)
register SV *old;
{
- register SV *new;
+ register SV *sv;
if (!old)
return Nullsv;
- if (SvTYPE(old) == 0xff) {
+ if (SvTYPE(old) == SVTYPEMASK) {
warn("semi-panic: attempt to dup freed string");
return Nullsv;
}
- new = NEWSV(80,0);
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (SvTEMP(old)) {
SvTEMP_off(old);
- sv_setsv(new,old);
+ sv_setsv(sv,old);
SvTEMP_on(old);
}
else
- sv_setsv(new,old);
- return new;
+ sv_setsv(sv,old);
+ return sv;
}
void
register I32 i;
register PMOP *pm;
register I32 max;
+ char todo[256];
if (!*s) { /* reset ?? searches */
for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
if (!HvARRAY(stash))
return;
+
+ Zero(todo, 256, char);
while (*s) {
i = *s;
if (s[1] == '-') {
}
max = *s++;
for ( ; i <= max; i++) {
+ todo[i] = 1;
+ }
+ for (i = 0; i <= (I32) HvMAX(stash); i++) {
for (entry = HvARRAY(stash)[i];
entry;
entry = entry->hent_next) {
+ if (!todo[(U8)*entry->hent_key])
+ continue;
gv = (GV*)entry->hent_val;
sv = GvSV(gv);
- SvOK_off(sv);
+ (void)SvOK_off(sv);
if (SvTYPE(sv) >= SVt_PV) {
SvCUR_set(sv, 0);
- SvTDOWN(sv);
- if (SvPV(sv) != Nullch)
- *SvPV(sv) = '\0';
+ SvTAINT(sv);
+ if (SvPVX(sv) != Nullch)
+ *SvPVX(sv) = '\0';
}
if (GvAV(gv)) {
av_clear(GvAV(gv));
}
if (GvHV(gv)) {
- hv_clear(GvHV(gv), FALSE);
+ if (HvNAME(GvHV(gv)))
+ continue;
+ hv_clear(GvHV(gv));
+#ifndef VMS /* VMS has no environ array */
if (gv == envgv)
environ[0] = Nullch;
+#endif
}
}
}
}
}
-#ifdef OLD
-AV *
-sv_2av(sv, st, gvp, lref)
-SV *sv;
-HV **st;
-GV **gvp;
-I32 lref;
-{
- GV *gv;
-
- switch (SvTYPE(sv)) {
- case SVt_PVAV:
- *st = sv->sv_u.sv_stash;
- *gvp = Nullgv;
- return sv->sv_u.sv_av;
- case SVt_PVHV:
- case SVt_PVCV:
- *gvp = Nullgv;
- return Nullav;
- default:
- if (isGV(sv))
- gv = (GV*)sv;
- else
- gv = gv_fetchpv(SvPVn(sv), lref);
- *gvp = gv;
- if (!gv)
- return Nullav;
- *st = GvESTASH(gv);
- if (lref)
- return GvAVn(gv);
- else
- return GvAV(gv);
- }
-}
-
-HV *
-sv_2hv(sv, st, gvp, lref)
-SV *sv;
-HV **st;
-GV **gvp;
-I32 lref;
-{
- GV *gv;
-
- switch (SvTYPE(sv)) {
- case SVt_PVHV:
- *st = sv->sv_u.sv_stash;
- *gvp = Nullgv;
- return sv->sv_u.sv_hv;
- case SVt_PVAV:
- case SVt_PVCV:
- *gvp = Nullgv;
- return Nullhv;
- default:
- if (isGV(sv))
- gv = (GV*)sv;
- else
- gv = gv_fetchpv(SvPVn(sv), lref);
- *gvp = gv;
- if (!gv)
- return Nullhv;
- *st = GvESTASH(gv);
- if (lref)
- return GvHVn(gv);
- else
- return GvHV(gv);
- }
-}
-#endif;
-
CV *
sv_2cv(sv, st, gvp, lref)
SV *sv;
if (!sv)
return *gvp = Nullgv, Nullcv;
switch (SvTYPE(sv)) {
- case SVt_REF:
- cv = (CV*)SvANY(sv);
- if (SvTYPE(cv) != SVt_PVCV)
- fatal("Not a subroutine reference");
- *gvp = Nullgv;
- *st = CvSTASH(cv);
- return cv;
case SVt_PVCV:
*st = CvSTASH(sv);
*gvp = Nullgv;
case SVt_PVAV:
*gvp = Nullgv;
return Nullcv;
+ case SVt_PVGV:
+ gv = (GV*)sv;
+ *gvp = gv;
+ *st = GvESTASH(gv);
+ goto fix_gv;
+
default:
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (SvROK(sv)) {
+ cv = (CV*)SvRV(sv);
+ if (SvTYPE(cv) != SVt_PVCV)
+ croak("Not a subroutine reference");
+ *gvp = Nullgv;
+ *st = CvSTASH(cv);
+ return cv;
+ }
if (isGV(sv))
gv = (GV*)sv;
else
- gv = gv_fetchpv(SvPVn(sv), lref);
+ gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
*gvp = gv;
if (!gv)
return Nullcv;
*st = GvESTASH(gv);
+ fix_gv:
+ if (lref && !GvCV(gv)) {
+ SV *tmpsv;
+ ENTER;
+ tmpsv = NEWSV(704,0);
+ gv_efullname(tmpsv, gv);
+ newSUB(start_subparse(),
+ newSVOP(OP_CONST, 0, tmpsv),
+ Nullop,
+ Nullop);
+ LEAVE;
+ if (!GvCV(gv))
+ croak("Unable to create sub named \"%s\"", SvPV(sv,na));
+ }
return GvCV(gv);
}
}
SvTRUE(sv)
register SV *sv;
{
- if (SvMAGICAL(sv))
+ if (!sv)
+ return 0;
+ if (SvGMAGICAL(sv))
mg_get(sv);
if (SvPOK(sv)) {
register XPV* Xpv;
}
else {
if (SvIOK(sv))
- return SvIV(sv) != 0;
+ return SvIVX(sv) != 0;
else {
if (SvNOK(sv))
- return SvNV(sv) != 0.0;
+ return SvNVX(sv) != 0.0;
else
- return 0;
+ return sv_2bool(sv);
}
}
}
#endif /* SvTRUE */
-#ifndef SvNVn
-double SvNVn(Sv)
+#ifndef SvIV
+IV SvIV(Sv)
+register SV *Sv;
+{
+ if (SvIOK(Sv))
+ return SvIVX(Sv);
+ return sv_2iv(Sv);
+}
+#endif /* SvIV */
+
+
+#ifndef SvNV
+double SvNV(Sv)
register SV *Sv;
{
- SvTUP(Sv);
- if (SvMAGICAL(sv))
- mg_get(sv);
if (SvNOK(Sv))
- return SvNV(Sv);
+ return SvNVX(Sv);
if (SvIOK(Sv))
- return (double)SvIV(Sv);
+ return (double)SvIVX(Sv);
return sv_2nv(Sv);
}
-#endif /* SvNVn */
+#endif /* SvNV */
-#ifndef SvPVn
+#ifdef CRIPPLED_CC
char *
-SvPVn(sv)
+sv_pvn(sv, lp)
SV *sv;
+STRLEN *lp;
+{
+ if (SvPOK(sv)) {
+ *lp = SvCUR(sv);
+ return SvPVX(sv);
+ }
+ return sv_2pv(sv, lp);
+}
+#endif
+
+char *
+sv_pvn_force(sv, lp)
+SV *sv;
+STRLEN *lp;
+{
+ char *s;
+
+ if (SvREADONLY(sv) && curcop != &compiling)
+ croak(no_modify);
+
+ if (SvPOK(sv)) {
+ *lp = SvCUR(sv);
+ }
+ else {
+ if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
+ if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
+ sv_unglob(sv);
+ s = SvPVX(sv);
+ *lp = SvCUR(sv);
+ }
+ else
+ croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
+ op_name[op->op_type]);
+ }
+ else
+ s = sv_2pv(sv, lp);
+ if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
+ STRLEN len = *lp;
+
+ if (SvROK(sv))
+ sv_unref(sv);
+ (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
+ SvGROW(sv, len + 1);
+ Move(s,SvPVX(sv),len,char);
+ SvCUR_set(sv, len);
+ *SvEND(sv) = '\0';
+ }
+ if (!SvPOK(sv)) {
+ SvPOK_on(sv); /* validate pointer */
+ SvTAINT(sv);
+ DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",
+ (unsigned long)sv,SvPVX(sv)));
+ }
+ }
+ return SvPVX(sv);
+}
+
+char *
+sv_reftype(sv, ob)
+SV* sv;
+int ob;
+{
+ if (ob && SvOBJECT(sv))
+ return HvNAME(SvSTASH(sv));
+ else {
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ case SVt_IV:
+ case SVt_NV:
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
+ case SVt_PVNV:
+ case SVt_PVMG:
+ case SVt_PVBM:
+ if (SvROK(sv))
+ return "REF";
+ else
+ return "SCALAR";
+ case SVt_PVLV: return "LVALUE";
+ case SVt_PVAV: return "ARRAY";
+ case SVt_PVHV: return "HASH";
+ case SVt_PVCV: return "CODE";
+ case SVt_PVGV: return "GLOB";
+ case SVt_PVFM: return "FORMLINE";
+ default: return "UNKNOWN";
+ }
+ }
+}
+
+int
+sv_isobject(sv)
+SV *sv;
+{
+ if (!SvROK(sv))
+ return 0;
+ sv = (SV*)SvRV(sv);
+ if (!SvOBJECT(sv))
+ return 0;
+ return 1;
+}
+
+int
+sv_isa(sv, name)
+SV *sv;
+char *name;
+{
+ if (!SvROK(sv))
+ return 0;
+ sv = (SV*)SvRV(sv);
+ if (!SvOBJECT(sv))
+ return 0;
+
+ return strEQ(HvNAME(SvSTASH(sv)), name);
+}
+
+SV*
+newSVrv(rv, classname)
+SV *rv;
+char *classname;
+{
+ SV *sv;
+
+ new_SV();
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 0;
+ SvFLAGS(sv) = 0;
+ sv_upgrade(rv, SVt_RV);
+ SvRV(rv) = SvREFCNT_inc(sv);
+ SvROK_on(rv);
+
+ if (classname) {
+ HV* stash = gv_stashpv(classname, TRUE);
+ (void)sv_bless(rv, stash);
+ }
+ return sv;
+}
+
+SV*
+sv_setref_pv(rv, classname, pv)
+SV *rv;
+char *classname;
+void* pv;
+{
+ if (!pv)
+ sv_setsv(rv, &sv_undef);
+ else
+ sv_setiv(newSVrv(rv,classname), (IV)pv);
+ return rv;
+}
+
+SV*
+sv_setref_iv(rv, classname, iv)
+SV *rv;
+char *classname;
+IV iv;
+{
+ sv_setiv(newSVrv(rv,classname), iv);
+ return rv;
+}
+
+SV*
+sv_setref_nv(rv, classname, nv)
+SV *rv;
+char *classname;
+double nv;
+{
+ sv_setnv(newSVrv(rv,classname), nv);
+ return rv;
+}
+
+SV*
+sv_setref_pvn(rv, classname, pv, n)
+SV *rv;
+char *classname;
+char* pv;
+I32 n;
+{
+ sv_setpvn(newSVrv(rv,classname), pv, n);
+ return rv;
+}
+
+SV*
+sv_bless(sv,stash)
+SV* sv;
+HV* stash;
+{
+ SV *ref;
+ if (!SvROK(sv))
+ croak("Can't bless non-reference value");
+ ref = SvRV(sv);
+ if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
+ if (SvREADONLY(ref))
+ croak(no_modify);
+ if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO)
+ --sv_objcount;
+ }
+ SvOBJECT_on(ref);
+ ++sv_objcount;
+ (void)SvUPGRADE(ref, SVt_PVMG);
+ SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
+
+#ifdef OVERLOAD
+ SvAMAGIC_off(sv);
+ if (Gv_AMG(stash)) {
+ SvAMAGIC_on(sv);
+ }
+#endif /* OVERLOAD */
+
+ return sv;
+}
+
+static void
+sv_unglob(sv)
+SV* sv;
+{
+ assert(SvTYPE(sv) == SVt_PVGV);
+ SvFAKE_off(sv);
+ if (GvGP(sv))
+ gp_free(sv);
+ sv_unmagic(sv, '*');
+ Safefree(GvNAME(sv));
+ GvMULTI_off(sv);
+ SvFLAGS(sv) &= ~SVTYPEMASK;
+ SvFLAGS(sv) |= SVt_PVMG;
+}
+
+void
+sv_unref(sv)
+SV* sv;
+{
+ SV* rv = SvRV(sv);
+
+ SvRV(sv) = 0;
+ SvROK_off(sv);
+ if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
+ SvREFCNT_dec(rv);
+ else
+ sv_2mortal(rv); /* Schedule for freeing later */
+}
+
+#ifdef DEBUGGING
+void
+sv_dump(sv)
+SV* sv;
+{
+ char tmpbuf[1024];
+ char *d = tmpbuf;
+ U32 flags;
+ U32 type;
+
+ if (!sv) {
+ fprintf(stderr, "SV = 0\n");
+ return;
+ }
+
+ flags = SvFLAGS(sv);
+ type = SvTYPE(sv);
+
+ sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
+ (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
+ d += strlen(d);
+ if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,");
+ if (flags & SVs_PADTMP) strcat(d, "PADTMP,");
+ if (flags & SVs_PADMY) strcat(d, "PADMY,");
+ if (flags & SVs_TEMP) strcat(d, "TEMP,");
+ if (flags & SVs_OBJECT) strcat(d, "OBJECT,");
+ if (flags & SVs_GMG) strcat(d, "GMG,");
+ if (flags & SVs_SMG) strcat(d, "SMG,");
+ if (flags & SVs_RMG) strcat(d, "RMG,");
+ d += strlen(d);
+
+ if (flags & SVf_IOK) strcat(d, "IOK,");
+ if (flags & SVf_NOK) strcat(d, "NOK,");
+ if (flags & SVf_POK) strcat(d, "POK,");
+ if (flags & SVf_ROK) strcat(d, "ROK,");
+ if (flags & SVf_OOK) strcat(d, "OOK,");
+ if (flags & SVf_FAKE) strcat(d, "FAKE,");
+ if (flags & SVf_READONLY) strcat(d, "READONLY,");
+ d += strlen(d);
+
+ if (flags & SVp_IOK) strcat(d, "pIOK,");
+ if (flags & SVp_NOK) strcat(d, "pNOK,");
+ if (flags & SVp_POK) strcat(d, "pPOK,");
+ if (flags & SVp_SCREAM) strcat(d, "SCREAM,");
+ d += strlen(d);
+ if (d[-1] == ',')
+ d--;
+ *d++ = ')';
+ *d = '\0';
+
+ fprintf(stderr, "SV = ");
+ switch (type) {
+ case SVt_NULL:
+ fprintf(stderr,"NULL%s\n", tmpbuf);
+ return;
+ case SVt_IV:
+ fprintf(stderr,"IV%s\n", tmpbuf);
+ break;
+ case SVt_NV:
+ fprintf(stderr,"NV%s\n", tmpbuf);
+ break;
+ case SVt_RV:
+ fprintf(stderr,"RV%s\n", tmpbuf);
+ break;
+ case SVt_PV:
+ fprintf(stderr,"PV%s\n", tmpbuf);
+ break;
+ case SVt_PVIV:
+ fprintf(stderr,"PVIV%s\n", tmpbuf);
+ break;
+ case SVt_PVNV:
+ fprintf(stderr,"PVNV%s\n", tmpbuf);
+ break;
+ case SVt_PVBM:
+ fprintf(stderr,"PVBM%s\n", tmpbuf);
+ break;
+ case SVt_PVMG:
+ fprintf(stderr,"PVMG%s\n", tmpbuf);
+ break;
+ case SVt_PVLV:
+ fprintf(stderr,"PVLV%s\n", tmpbuf);
+ break;
+ case SVt_PVAV:
+ fprintf(stderr,"PVAV%s\n", tmpbuf);
+ break;
+ case SVt_PVHV:
+ fprintf(stderr,"PVHV%s\n", tmpbuf);
+ break;
+ case SVt_PVCV:
+ fprintf(stderr,"PVCV%s\n", tmpbuf);
+ break;
+ case SVt_PVGV:
+ fprintf(stderr,"PVGV%s\n", tmpbuf);
+ break;
+ case SVt_PVFM:
+ fprintf(stderr,"PVFM%s\n", tmpbuf);
+ break;
+ case SVt_PVIO:
+ fprintf(stderr,"PVIO%s\n", tmpbuf);
+ break;
+ default:
+ fprintf(stderr,"UNKNOWN%s\n", tmpbuf);
+ return;
+ }
+ if (type >= SVt_PVIV || type == SVt_IV)
+ fprintf(stderr, " IV = %ld\n", (long)SvIVX(sv));
+ if (type >= SVt_PVNV || type == SVt_NV)
+ fprintf(stderr, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
+ if (SvROK(sv)) {
+ fprintf(stderr, " RV = 0x%lx\n", (long)SvRV(sv));
+ sv_dump(SvRV(sv));
+ return;
+ }
+ if (type < SVt_PV)
+ return;
+ if (type <= SVt_PVLV) {
+ if (SvPVX(sv))
+ fprintf(stderr, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
+ (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
+ else
+ fprintf(stderr, " PV = 0\n");
+ }
+ if (type >= SVt_PVMG) {
+ if (SvMAGIC(sv)) {
+ fprintf(stderr, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
+ }
+ if (SvSTASH(sv))
+ fprintf(stderr, " STASH = %s\n", HvNAME(SvSTASH(sv)));
+ }
+ switch (type) {
+ case SVt_PVLV:
+ fprintf(stderr, " TYPE = %c\n", LvTYPE(sv));
+ fprintf(stderr, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
+ fprintf(stderr, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
+ fprintf(stderr, " TARG = 0x%lx\n", (long)LvTARG(sv));
+ sv_dump(LvTARG(sv));
+ break;
+ case SVt_PVAV:
+ fprintf(stderr, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
+ fprintf(stderr, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
+ fprintf(stderr, " FILL = %ld\n", (long)AvFILL(sv));
+ fprintf(stderr, " MAX = %ld\n", (long)AvMAX(sv));
+ fprintf(stderr, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
+ flags = AvFLAGS(sv);
+ d = tmpbuf;
+ if (flags & AVf_REAL) strcat(d, "REAL,");
+ if (flags & AVf_REIFY) strcat(d, "REIFY,");
+ if (flags & AVf_REUSED) strcat(d, "REUSED,");
+ if (*d)
+ d[strlen(d)-1] = '\0';
+ fprintf(stderr, " FLAGS = (%s)\n", d);
+ break;
+ case SVt_PVHV:
+ fprintf(stderr, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
+ fprintf(stderr, " KEYS = %ld\n", (long)HvKEYS(sv));
+ fprintf(stderr, " FILL = %ld\n", (long)HvFILL(sv));
+ fprintf(stderr, " MAX = %ld\n", (long)HvMAX(sv));
+ fprintf(stderr, " RITER = %ld\n", (long)HvRITER(sv));
+ fprintf(stderr, " EITER = 0x%lx\n",(long) HvEITER(sv));
+ if (HvPMROOT(sv))
+ fprintf(stderr, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
+ if (HvNAME(sv))
+ fprintf(stderr, " NAME = \"%s\"\n", HvNAME(sv));
+ break;
+ case SVt_PVFM:
+ case SVt_PVCV:
+ fprintf(stderr, " STASH = 0x%lx\n", (long)CvSTASH(sv));
+ fprintf(stderr, " START = 0x%lx\n", (long)CvSTART(sv));
+ fprintf(stderr, " ROOT = 0x%lx\n", (long)CvROOT(sv));
+ fprintf(stderr, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
+ fprintf(stderr, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
+ fprintf(stderr, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
+ fprintf(stderr, " DEPTH = %ld\n", (long)CvDEPTH(sv));
+ fprintf(stderr, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
+ fprintf(stderr, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
+ if (type == SVt_PVFM)
+ fprintf(stderr, " LINES = %ld\n", (long)FmLINES(sv));
+ break;
+ case SVt_PVGV:
+ fprintf(stderr, " NAME = %s\n", GvNAME(sv));
+ fprintf(stderr, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
+ fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
+ fprintf(stderr, " GP = 0x%lx\n", (long)GvGP(sv));
+ fprintf(stderr, " SV = 0x%lx\n", (long)GvSV(sv));
+ fprintf(stderr, " REFCNT = %ld\n", (long)GvREFCNT(sv));
+ fprintf(stderr, " IO = 0x%lx\n", (long)GvIOp(sv));
+ fprintf(stderr, " FORM = 0x%lx\n", (long)GvFORM(sv));
+ fprintf(stderr, " AV = 0x%lx\n", (long)GvAV(sv));
+ fprintf(stderr, " HV = 0x%lx\n", (long)GvHV(sv));
+ fprintf(stderr, " CV = 0x%lx\n", (long)GvCV(sv));
+ fprintf(stderr, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
+ fprintf(stderr, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
+ fprintf(stderr, " LINE = %ld\n", (long)GvLINE(sv));
+ fprintf(stderr, " FLAGS = 0x%x\n", (int)GvFLAGS(sv));
+ fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
+ fprintf(stderr, " EGV = 0x%lx\n", (long)GvEGV(sv));
+ break;
+ case SVt_PVIO:
+ fprintf(stderr, " IFP = 0x%lx\n", (long)IoIFP(sv));
+ fprintf(stderr, " OFP = 0x%lx\n", (long)IoOFP(sv));
+ fprintf(stderr, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
+ fprintf(stderr, " LINES = %ld\n", (long)IoLINES(sv));
+ fprintf(stderr, " PAGE = %ld\n", (long)IoPAGE(sv));
+ fprintf(stderr, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
+ fprintf(stderr, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
+ fprintf(stderr, " TOP_NAME = %s\n", IoTOP_NAME(sv));
+ fprintf(stderr, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
+ fprintf(stderr, " FMT_NAME = %s\n", IoFMT_NAME(sv));
+ fprintf(stderr, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
+ fprintf(stderr, " BOTTOM_NAME = %s\n", IoBOTTOM_NAME(sv));
+ fprintf(stderr, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
+ fprintf(stderr, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
+ fprintf(stderr, " TYPE = %c\n", IoTYPE(sv));
+ fprintf(stderr, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
+ break;
+ }
+}
+#else
+void
+sv_dump(sv)
+SV* sv;
{
- SvTUP(sv);
- if (SvMAGICAL(sv))
- mg_get(sv);
- return SvPOK(sv) ? SvPV(sv) : sv_2pv(sv);
}
#endif
+IO*
+sv_2io(sv)
+SV *sv;
+{
+ IO* io;
+ GV* gv;
+
+ switch (SvTYPE(sv)) {
+ case SVt_PVIO:
+ io = (IO*)sv;
+ break;
+ case SVt_PVGV:
+ gv = (GV*)sv;
+ io = GvIO(gv);
+ if (!io)
+ croak("Bad filehandle: %s", GvNAME(gv));
+ break;
+ default:
+ if (!SvOK(sv))
+ croak(no_usym, "filehandle");
+ if (SvROK(sv))
+ return sv_2io(SvRV(sv));
+ gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
+ if (gv)
+ io = GvIO(gv);
+ else
+ io = 0;
+ if (!io)
+ croak("Bad filehandle: %s", SvPV(sv,na));
+ break;
+ }
+ return io;
+}
+
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