-/* $RCSfile: sv.c,v $$Revision: 4.1 $$Date: 92/08/07 18:26:45 $
+/* sv.c
*
- * Copyright (c) 1991, Larry Wall
+ * 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.
*
- * $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) && !defined(__QNX__)
+# define FAST_SV_GETS
+#endif
+
+static IV asIV _((SV* sv));
+static UV asUV _((SV* sv));
+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 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));
+
+typedef void (*SVFUNC) _((SV*));
-static SV* sv_root;
+#ifdef PURIFY
-static SV* more_sv();
+#define new_SV(p) \
+ do { \
+ (p) = (SV*)safemalloc(sizeof(SV)); \
+ reg_add(p); \
+ } while (0)
+
+#define del_SV(p) \
+ do { \
+ reg_remove(p); \
+ free((char*)(p)); \
+ } while (0)
+
+static SV **registry;
+static I32 regsize;
+
+#define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
+
+#define REG_REPLACE(sv,a,b) \
+ do { \
+ void* p = sv->sv_any; \
+ I32 h = REGHASH(sv, regsize); \
+ I32 i = h; \
+ while (registry[i] != (a)) { \
+ if (++i >= regsize) \
+ i = 0; \
+ if (i == h) \
+ die("SV registry bug"); \
+ } \
+ registry[i] = (b); \
+ } while (0)
+
+#define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
+#define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
-static SV*
-new_sv()
+static void
+reg_add(sv)
+SV* sv;
{
- SV* sv;
- if (sv_root) {
- sv = sv_root;
- sv_root = (SV*)SvANY(sv);
- return sv;
+ if (sv_count >= (regsize >> 1))
+ {
+ SV **oldreg = registry;
+ I32 oldsize = regsize;
+
+ regsize = regsize ? ((regsize << 2) + 1) : 2037;
+ registry = (SV**)safemalloc(regsize * sizeof(SV*));
+ memzero(registry, regsize * sizeof(SV*));
+
+ if (oldreg) {
+ I32 i;
+
+ for (i = 0; i < oldsize; ++i) {
+ SV* oldsv = oldreg[i];
+ if (oldsv)
+ REG_ADD(oldsv);
+ }
+ Safefree(oldreg);
+ }
+ }
+
+ REG_ADD(sv);
+ ++sv_count;
+}
+
+static void
+reg_remove(sv)
+SV* sv;
+{
+ REG_REMOVE(sv);
+ --sv_count;
+}
+
+static void
+visit(f)
+SVFUNC f;
+{
+ I32 i;
+
+ for (i = 0; i < regsize; ++i) {
+ SV* sv = registry[i];
+ if (sv)
+ (*f)(sv);
}
- return more_sv();
}
+void
+sv_add_arena(ptr, size, flags)
+char* ptr;
+U32 size;
+U32 flags;
+{
+ if (!(flags & SVf_FAKE))
+ free(ptr);
+}
+
+#else /* ! PURIFY */
+
+/*
+ * "A time to plant, and a time to uproot what was planted..."
+ */
+
+#define plant_SV(p) \
+ do { \
+ SvANY(p) = (void *)sv_root; \
+ SvFLAGS(p) = SVTYPEMASK; \
+ sv_root = (p); \
+ --sv_count; \
+ } while (0)
+
+#define uproot_SV(p) \
+ do { \
+ (p) = sv_root; \
+ sv_root = (SV*)SvANY(p); \
+ ++sv_count; \
+ } while (0)
+
+#define new_SV(p) \
+ if (sv_root) \
+ uproot_SV(p); \
+ else \
+ (p) = more_sv()
+
+#ifdef DEBUGGING
+
+#define del_SV(p) \
+ if (debug & 32768) \
+ del_sv(p); \
+ else \
+ plant_SV(p)
+
static void
del_sv(p)
SV* p;
{
- SvANY(p) = sv_root;
- sv_root = 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;
+ }
+ }
+ plant_SV(p);
}
-static SV*
-more_sv()
+#else /* ! DEBUGGING */
+
+#define del_SV(p) plant_SV(p)
+
+#endif /* DEBUGGING */
+
+void
+sv_add_arena(ptr, size, flags)
+char* ptr;
+U32 size;
+U32 flags;
{
- register int i;
+ SV* sva = (SV*)ptr;
register SV* sv;
register SV* svend;
- sv_root = (SV*)malloc(1008);
- sv = sv_root;
- svend = &sv[1008 / sizeof(SV) - 1];
+ 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) = (SV*)(sv + 1);
+ SvANY(sv) = (void *)(SV*)(sv + 1);
+ SvFLAGS(sv) = SVTYPEMASK;
sv++;
}
SvANY(sv) = 0;
- return new_sv();
+ SvFLAGS(sv) = SVTYPEMASK;
+}
+
+static SV*
+more_sv()
+{
+ register SV* sv;
+
+ if (nice_chunk) {
+ sv_add_arena(nice_chunk, nice_chunk_size, 0);
+ nice_chunk = Nullch;
+ }
+ else {
+ char *chunk; /* must use New here to match call to */
+ New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
+ sv_add_arena(chunk, 1008, 0);
+ }
+ uproot_SV(sv);
+ return sv;
+}
+
+static void
+visit(f)
+SVFUNC f;
+{
+ SV* sva;
+ SV* sv;
+ register SV* svend;
+
+ for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
+ svend = &sva[SvREFCNT(sva)];
+ for (sv = sva + 1; sv < svend; ++sv) {
+ if (SvTYPE(sv) != SVTYPEMASK)
+ (*f)(sv);
+ }
+ }
+}
+
+#endif /* PURIFY */
+
+static void
+do_report_used(sv)
+SV* sv;
+{
+ if (SvTYPE(sv) != SVTYPEMASK) {
+ /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
+ PerlIO_printf(PerlIO_stderr(), "****\n");
+ sv_dump(sv);
+ }
+}
+
+void
+sv_report_used()
+{
+ visit(do_report_used);
+}
+
+static void
+do_clean_objs(sv)
+SV* sv;
+{
+ SV* rv;
+
+ if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
+ DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
+ SvROK_off(sv);
+ SvRV(sv) = 0;
+ SvREFCNT_dec(rv);
+ }
+
+ /* XXX Might want to check arrays, etc. */
+}
+
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+static void
+do_clean_named_objs(sv)
+SV* sv;
+{
+ if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
+ do_clean_objs(GvSV(sv));
+}
+#endif
+
+static bool in_clean_objs = FALSE;
+
+void
+sv_clean_objs()
+{
+ in_clean_objs = TRUE;
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+ visit(do_clean_named_objs);
+#endif
+ visit(do_clean_objs);
+ in_clean_objs = FALSE;
}
-static I32* xiv_root;
+static void
+do_clean_all(sv)
+SV* sv;
+{
+ DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
+ SvFLAGS(sv) |= SVf_BREAK;
+ SvREFCNT_dec(sv);
+}
+
+static bool in_clean_all = FALSE;
+
+void
+sv_clean_all()
+{
+ in_clean_all = TRUE;
+ visit(do_clean_all);
+ in_clean_all = FALSE;
+}
+
+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((void *)sva);
+ }
-static XPVIV* more_xiv();
+ sv_arenaroot = 0;
+ sv_root = 0;
+}
static XPVIV*
new_xiv()
{
- I32* xiv;
+ IV** xiv;
if (xiv_root) {
xiv = xiv_root;
- xiv_root = *(I32**)xiv;
+ /*
+ * See comment in more_xiv() -- RAM.
+ */
+ xiv_root = (IV**)*xiv;
return (XPVIV*)((char*)xiv - sizeof(XPV));
}
return more_xiv();
del_xiv(p)
XPVIV* p;
{
- I32* xiv = (I32*)((char*)(p) + sizeof(XPV));
- *(I32**)xiv = xiv_root;
+ IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
+ *xiv = (IV *)xiv_root;
xiv_root = xiv;
}
static XPVIV*
more_xiv()
{
- register int i;
- register I32* xiv;
- register I32* xivend;
- xiv = (I32*)malloc(1008);
- xivend = &xiv[1008 / sizeof(I32) - 1];
- xiv += (sizeof(XPV) - 1) / sizeof(I32) + 1; /* fudge by size of XPV */
+ 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) {
- *(I32**)xiv = (I32*)(xiv + 1); /* XXX busted on Alpha? */
+ *xiv = (IV *)(xiv + 1);
xiv++;
}
- *(I32**)xiv = 0;
+ *xiv = 0;
return new_xiv();
}
-static double* xnv_root;
-
-static XPVNV* more_xnv();
-
static XPVNV*
new_xnv()
{
static XPVNV*
more_xnv()
{
- register int i;
register double* xnv;
register double* xnvend;
- xnv = (double*)malloc(1008);
+ xnv = (double*)safemalloc(1008);
xnvend = &xnv[1008 / sizeof(double) - 1];
xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
xnv_root = xnv;
return new_xnv();
}
-static XRV* xrv_root;
-
-static XRV* more_xrv();
-
static XRV*
new_xrv()
{
static XRV*
more_xrv()
{
- register int i;
register XRV* xrv;
register XRV* xrvend;
- xrv_root = (XRV*)malloc(1008);
+ xrv_root = (XRV*)safemalloc(1008);
xrv = xrv_root;
xrvend = &xrv[1008 / sizeof(XRV) - 1];
while (xrv < xrvend) {
return new_xrv();
}
-static XPV* xpv_root;
-
-static XPV* more_xpv();
-
static XPV*
new_xpv()
{
static XPV*
more_xpv()
{
- register int i;
register XPV* xpv;
register XPV* xpvend;
- xpv_root = (XPV*)malloc(1008);
+ xpv_root = (XPV*)safemalloc(1008);
xpv = xpv_root;
xpvend = &xpv[1008 / sizeof(XPV) - 1];
while (xpv < xpvend) {
}
#ifdef PURIFY
-
-#define new_SV() sv = (SV*)malloc(sizeof(SV))
-#define del_SV(p) free((char*)p)
-
-#else
-
-#define new_SV() \
- if (sv_root) { \
- sv = sv_root; \
- sv_root = (SV*)SvANY(sv); \
- } \
- else \
- sv = more_sv();
-#define del_SV(p) del_sv(p)
-
-#endif
-
-#ifdef PURIFY
-#define new_XIV() (void*)malloc(sizeof(XPVIV))
+#define new_XIV() (void*)safemalloc(sizeof(XPVIV))
#define del_XIV(p) free((char*)p)
#else
-#define new_XIV() new_xiv()
+#define new_XIV() (void*)new_xiv()
#define del_XIV(p) del_xiv(p)
#endif
#ifdef PURIFY
-#define new_XNV() (void*)malloc(sizeof(XPVNV))
+#define new_XNV() (void*)safemalloc(sizeof(XPVNV))
#define del_XNV(p) free((char*)p)
#else
-#define new_XNV() new_xnv()
+#define new_XNV() (void*)new_xnv()
#define del_XNV(p) del_xnv(p)
#endif
#ifdef PURIFY
-#define new_XRV() (void*)malloc(sizeof(XRV))
+#define new_XRV() (void*)safemalloc(sizeof(XRV))
#define del_XRV(p) free((char*)p)
#else
-#define new_XRV() new_xrv()
+#define new_XRV() (void*)new_xrv()
#define del_XRV(p) del_xrv(p)
#endif
#ifdef PURIFY
-#define new_XPV() (void*)malloc(sizeof(XPV))
+#define new_XPV() (void*)safemalloc(sizeof(XPV))
#define del_XPV(p) free((char*)p)
#else
-#define new_XPV() new_xpv()
+#define new_XPV() (void*)new_xpv()
#define del_XPV(p) del_xpv(p)
#endif
-#define new_XPVIV() (void*)malloc(sizeof(XPVIV))
+#define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
#define del_XPVIV(p) free((char*)p)
-#define new_XPVNV() (void*)malloc(sizeof(XPVNV))
+#define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
#define del_XPVNV(p) free((char*)p)
-#define new_XPVMG() (void*)malloc(sizeof(XPVMG))
+#define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
#define del_XPVMG(p) free((char*)p)
-#define new_XPVLV() (void*)malloc(sizeof(XPVLV))
+#define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
#define del_XPVLV(p) free((char*)p)
-#define new_XPVAV() (void*)malloc(sizeof(XPVAV))
+#define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
#define del_XPVAV(p) free((char*)p)
-#define new_XPVHV() (void*)malloc(sizeof(XPVHV))
+#define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
#define del_XPVHV(p) free((char*)p)
-#define new_XPVCV() (void*)malloc(sizeof(XPVCV))
+#define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
#define del_XPVCV(p) free((char*)p)
-#define new_XPVGV() (void*)malloc(sizeof(XPVGV))
+#define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
#define del_XPVGV(p) free((char*)p)
-#define new_XPVBM() (void*)malloc(sizeof(XPVBM))
+#define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
#define del_XPVBM(p) free((char*)p)
-#define new_XPVFM() (void*)malloc(sizeof(XPVFM))
+#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)
register SV* sv;
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;
pv = (char*)SvRV(sv);
cur = 0;
len = 0;
- iv = (I32)pv;
+ iv = (IV)pv;
nv = (double)(unsigned long)pv;
del_XRV(SvANY(sv));
magic = 0;
stash = 0;
break;
case SVt_PV:
- nv = 0.0;
pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
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 = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
del_XPVIV(SvANY(sv));
break;
case SVt_PVNV:
- nv = SvNVX(sv);
pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
case SVt_RV:
SvANY(sv) = new_XRV();
SvRV(sv) = (SV*)pv;
- SvOK_on(sv);
break;
case SVt_PV:
SvANY(sv) = new_XPV();
SvLEN(sv) = len;
SvIVX(sv) = iv;
if (SvNIOK(sv))
- SvIOK_on(sv);
+ (void)SvIOK_on(sv);
SvNOK_off(sv);
break;
case SVt_PVNV:
SvANY(sv) = new_XPVAV();
if (pv)
Safefree(pv);
- AvARRAY(sv) = 0;
- AvMAX(sv) = 0;
- AvFILL(sv) = 0;
+ SvPVX(sv) = 0;
+ AvMAX(sv) = -1;
+ AvFILL(sv) = -1;
SvIVX(sv) = 0;
SvNVX(sv) = 0.0;
SvMAGIC(sv) = magic;
break;
case SVt_PVCV:
SvANY(sv) = new_XPVCV();
+ Zero(SvANY(sv), 1, XPVCV);
SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
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();
GvNAME(sv) = 0;
GvNAMELEN(sv) = 0;
GvSTASH(sv) = 0;
+ GvFLAGS(sv) = 0;
break;
case SVt_PVBM:
SvANY(sv) = new_XPVBM();
break;
case SVt_PVFM:
SvANY(sv) = new_XPVFM();
+ 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;
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';
+ SV *t = sv_newmortal();
+ STRLEN prevlen;
+ int unref = 0;
+ sv_setpvn(t, "", 0);
retry:
if (!sv) {
- strcpy(t, "VOID");
- return tokenbuf;
+ sv_catpv(t, "VOID");
+ goto finish;
}
else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
- strcpy(t, "WILD");
- return tokenbuf;
+ sv_catpv(t, "WILD");
+ goto finish;
}
- else if (SvREFCNT(sv) == 0 && !SvREADONLY(sv)) {
- strcpy(t, "UNREF");
- return tokenbuf;
+ else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
+ if (sv == &sv_undef) {
+ sv_catpv(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) {
+ sv_catpv(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 {
+ sv_catpv(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;
+ }
+ sv_catpv(t, ":");
}
- else {
- switch (SvTYPE(sv)) {
- default:
- strcpy(t,"FREED");
- return tokenbuf;
- 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:
- *t++ = '\\';
- if (t - tokenbuf > 10) {
- strcpy(tokenbuf + 3,"...");
- return tokenbuf;
- }
- sv = (SV*)SvRV(sv);
- goto retry;
- 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;
+ else if (SvREFCNT(sv) == 0) {
+ sv_catpv(t, "(");
+ unref++;
+ }
+ if (SvROK(sv)) {
+ sv_catpv(t, "\\");
+ if (SvCUR(t) + unref > 10) {
+ SvCUR(t) = unref + 3;
+ *SvEND(t) = '\0';
+ sv_catpv(t, "...");
+ goto finish;
}
+ sv = (SV*)SvRV(sv);
+ goto retry;
}
- t += strlen(t);
+ switch (SvTYPE(sv)) {
+ default:
+ sv_catpv(t, "FREED");
+ goto finish;
- if (SvPOK(sv)) {
+ case SVt_NULL:
+ sv_catpv(t, "UNDEF");
+ return tokenbuf;
+ case SVt_IV:
+ sv_catpv(t, "IV");
+ break;
+ case SVt_NV:
+ sv_catpv(t, "NV");
+ break;
+ case SVt_RV:
+ sv_catpv(t, "RV");
+ break;
+ case SVt_PV:
+ sv_catpv(t, "PV");
+ break;
+ case SVt_PVIV:
+ sv_catpv(t, "PVIV");
+ break;
+ case SVt_PVNV:
+ sv_catpv(t, "PVNV");
+ break;
+ case SVt_PVMG:
+ sv_catpv(t, "PVMG");
+ break;
+ case SVt_PVLV:
+ sv_catpv(t, "PVLV");
+ break;
+ case SVt_PVAV:
+ sv_catpv(t, "AV");
+ break;
+ case SVt_PVHV:
+ sv_catpv(t, "HV");
+ break;
+ case SVt_PVCV:
+ if (CvGV(sv))
+ sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
+ else
+ sv_catpv(t, "CV()");
+ goto finish;
+ case SVt_PVGV:
+ sv_catpv(t, "GV");
+ break;
+ case SVt_PVBM:
+ sv_catpv(t, "BM");
+ break;
+ case SVt_PVFM:
+ sv_catpv(t, "FM");
+ break;
+ case SVt_PVIO:
+ sv_catpv(t, "IO");
+ break;
+ }
+
+ if (SvPOKp(sv)) {
if (!SvPVX(sv))
- return "(null)";
+ sv_catpv(t, "(null)");
if (SvOOK(sv))
- sprintf(t,"(%d+\"%0.127s\")",SvIVX(sv),SvPVX(sv));
+ sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
else
- sprintf(t,"(\"%0.127s\")",SvPVX(sv));
+ sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
+ }
+ else if (SvNOKp(sv)) {
+ SET_NUMERIC_STANDARD();
+ sv_catpvf(t, "(%g)",SvNVX(sv));
}
- else if (SvNOK(sv))
- sprintf(t,"(%g)",SvNVX(sv));
- else if (SvIOK(sv))
- sprintf(t,"(%ld)",(long)SvIVX(sv));
+ else if (SvIOKp(sv))
+ sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
else
- strcpy(t,"()");
- return tokenbuf;
+ sv_catpv(t, "()");
+
+ finish:
+ if (unref) {
+ while (unref--)
+ sv_catpv(t, ")");
+ }
+ return SvPV(t, na);
}
+#endif
int
sv_backoff(sv)
Move(s, SvPVX(sv), SvCUR(sv)+1, char);
}
SvFLAGS(sv) &= ~SVf_OOK;
+ return 0;
}
char *
{
register char *s;
-#ifdef MSDOS
+#ifdef HAS_64K_LIMIT
if (newlen >= 0x10000) {
- fprintf(stderr, "Allocation too large: %lx\n", newlen);
+ PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
my_exit(1);
}
-#endif /* MSDOS */
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
+#endif /* HAS_64K_LIMIT */
+ if (SvROK(sv))
+ sv_unref(sv);
if (SvTYPE(sv) < SVt_PV) {
sv_upgrade(sv, SVt_PV);
s = SvPVX(sv);
else
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 (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
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_desc[op->op_type]);
}
+ (void)SvIOK_only(sv); /* validate number */
SvIVX(sv) = i;
- SvIOK_only(sv); /* validate number */
SvTAINT(sv);
}
void
-sv_setnv(sv,num)
+sv_setuv(sv,u)
+register SV *sv;
+UV u;
+{
+ if (u <= IV_MAX)
+ sv_setiv(sv, u);
+ else
+ sv_setnv(sv, (double)u);
+}
+
+void
+sv_setnv(sv,num)
register SV *sv;
double num;
{
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
}
- if (SvTYPE(sv) < SVt_NV)
+ 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]);
}
SvNVX(sv) = num;
- SvNOK_only(sv); /* validate number */
+ (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;
+ char *limit = tmpbuf + sizeof(tmpbuf) - 8;
+ /* each *s can expand to 4 chars + "...\0",
+ i.e. need room for 8 chars */
+
+ for (s = SvPVX(sv); *s && d < limit; s++) {
+ int ch = *s & 0xFF;
+ if (ch & 128 && !isPRINT_LC(ch)) {
+ *d++ = 'M';
+ *d++ = '-';
+ ch &= 127;
+ }
+ if (ch == '\n') {
+ *d++ = '\\';
+ *d++ = 'n';
+ }
+ else if (ch == '\r') {
+ *d++ = '\\';
+ *d++ = 'r';
+ }
+ else if (ch == '\f') {
+ *d++ = '\\';
+ *d++ = 'f';
+ }
+ else if (ch == '\\') {
+ *d++ = '\\';
+ *d++ = '\\';
+ }
+ else if (isPRINT_LC(ch))
+ *d++ = ch;
+ else {
+ *d++ = '^';
+ *d++ = toCTRL(ch);
+ }
+ }
+ 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 (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvIOKp(sv))
return SvIVX(sv);
- if (SvNOKp(sv))
- return (I32)SvNVX(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))
- return (I32)atol(SvPVX(sv));
- return 0;
+ return asIV(sv);
+ if (!SvROK(sv)) {
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0;
+ }
}
if (SvTHINKFIRST(sv)) {
- if (SvROK(sv))
- return (I32)SvRV(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 (SvNOK(sv))
- return (I32)SvNVX(sv);
- if (SvPOK(sv) && SvLEN(sv))
- return (I32)atol(SvPVX(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))
+ return asIV(sv);
if (dowarn)
- warn("Use of uninitialized variable");
+ warn(warn_uninit);
return 0;
}
}
switch (SvTYPE(sv)) {
case SVt_NULL:
sv_upgrade(sv, SVt_IV);
- return SvIVX(sv);
+ break;
case SVt_PV:
sv_upgrade(sv, SVt_PVIV);
break;
sv_upgrade(sv, SVt_PVNV);
break;
}
- if (SvNOK(sv))
- SvIVX(sv) = (I32)SvNVX(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");
- }
- SvIVX(sv) = (I32)atol(SvPVX(sv));
+ if (SvNOKp(sv)) {
+ (void)SvIOK_on(sv);
+ if (SvNVX(sv) < 0.0)
+ SvIVX(sv) = I_V(SvNVX(sv));
+ else
+ SvUVX(sv) = U_V(SvNVX(sv));
+ }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ (void)SvIOK_on(sv);
+ SvIVX(sv) = asIV(sv);
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvUPGRADE(sv, SVt_IV);
- SvIVX(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,SvIVX(sv)));
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
+ (unsigned long)sv,(long)SvIVX(sv)));
return SvIVX(sv);
}
+UV
+sv_2uv(sv)
+register SV *sv;
+{
+ if (!sv)
+ return 0;
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ if (SvIOKp(sv))
+ return SvUVX(sv);
+ if (SvNOKp(sv))
+ return U_V(SvNVX(sv));
+ if (SvPOKp(sv) && SvLEN(sv))
+ return asUV(sv);
+ if (!SvROK(sv)) {
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0;
+ }
+ }
+ if (SvTHINKFIRST(sv)) {
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
+ return SvUV(tmpstr);
+#endif /* OVERLOAD */
+ return (UV)SvRV(sv);
+ }
+ if (SvREADONLY(sv)) {
+ if (SvNOKp(sv)) {
+ return U_V(SvNVX(sv));
+ }
+ if (SvPOKp(sv) && SvLEN(sv))
+ return asUV(sv);
+ if (dowarn)
+ warn(warn_uninit);
+ return 0;
+ }
+ }
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ sv_upgrade(sv, SVt_IV);
+ break;
+ case SVt_PV:
+ sv_upgrade(sv, SVt_PVIV);
+ break;
+ case SVt_NV:
+ sv_upgrade(sv, SVt_PVNV);
+ break;
+ }
+ if (SvNOKp(sv)) {
+ (void)SvIOK_on(sv);
+ SvUVX(sv) = U_V(SvNVX(sv));
+ }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ (void)SvIOK_on(sv);
+ SvUVX(sv) = asUV(sv);
+ }
+ else {
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0;
+ }
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
+ (unsigned long)sv,SvUVX(sv)));
+ return SvUVX(sv);
+}
+
double
sv_2nv(sv)
register SV *sv;
{
if (!sv)
return 0.0;
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvNOKp(sv))
return SvNVX(sv);
- if (SvPOKp(sv) && SvLEN(sv))
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ SET_NUMERIC_STANDARD();
return atof(SvPVX(sv));
+ }
if (SvIOKp(sv))
return (double)SvIVX(sv);
- return 0;
+ if (!SvROK(sv)) {
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ return 0;
+ }
}
if (SvTHINKFIRST(sv)) {
- if (SvROK(sv))
- return (double)(unsigned long)SvRV(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 (SvPOK(sv) && SvLEN(sv))
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ SET_NUMERIC_STANDARD();
return atof(SvPVX(sv));
+ }
+ if (SvIOKp(sv))
+ return (double)SvIVX(sv);
if (dowarn)
- warn("Use of uninitialized variable");
+ warn(warn_uninit);
return 0.0;
}
}
sv_upgrade(sv, SVt_PVNV);
else
sv_upgrade(sv, SVt_NV);
- DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvNVX(sv)));
- return SvNVX(sv);
+ DEBUG_c(SET_NUMERIC_STANDARD());
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "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(SvPVX(sv),'.') || !looks_like_number(sv)))
+ if (SvIOKp(sv) &&
+ (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(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");
- }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ SET_NUMERIC_STANDARD();
SvNVX(sv) = atof(SvPVX(sv));
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvNVX(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,SvNVX(sv)));
+ DEBUG_c(SET_NUMERIC_STANDARD());
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
return SvNVX(sv);
}
+static IV
+asIV(sv)
+SV *sv;
+{
+ I32 numtype = looks_like_number(sv);
+ double d;
+
+ if (numtype == 1)
+ return atol(SvPVX(sv));
+ if (!numtype && dowarn)
+ not_a_number(sv);
+ SET_NUMERIC_STANDARD();
+ d = atof(SvPVX(sv));
+ if (d < 0.0)
+ return I_V(d);
+ else
+ return (IV) U_V(d);
+}
+
+static UV
+asUV(sv)
+SV *sv;
+{
+ I32 numtype = looks_like_number(sv);
+
+ if (numtype == 1)
+ return atol(SvPVX(sv));
+ if (!numtype && dowarn)
+ not_a_number(sv);
+ SET_NUMERIC_STANDARD();
+ return U_V(atof(SvPVX(sv)));
+}
+
+I32
+looks_like_number(sv)
+SV *sv;
+{
+ register char *s;
+ register char *send;
+ register char *sbegin;
+ I32 numtype;
+ STRLEN len;
+
+ if (SvPOK(sv)) {
+ sbegin = SvPVX(sv);
+ len = SvCUR(sv);
+ }
+ else if (SvPOKp(sv))
+ sbegin = SvPV(sv, len);
+ else
+ return 1;
+ send = sbegin + len;
+
+ s = sbegin;
+ while (isSPACE(*s))
+ s++;
+ if (*s == '+' || *s == '-')
+ s++;
+
+ /* next must be digit or '.' */
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+ if (*s == '.') {
+ s++;
+ while (isDIGIT(*s)) /* optional digits after "." */
+ s++;
+ }
+ }
+ else if (*s == '.') {
+ s++;
+ /* no digits before '.' means we need digits after it */
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+ }
+ else
+ return 0;
+ }
+ else
+ return 0;
+
+ /*
+ * we return 1 if the number can be converted to _integer_ with atol()
+ * and 2 if you need (int)atof().
+ */
+ numtype = 1;
+
+ /* we can have an optional exponent part */
+ if (*s == 'e' || *s == 'E') {
+ numtype = 2;
+ s++;
+ if (*s == '+' || *s == '-')
+ s++;
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+ }
+ else
+ return 0;
+ }
+ while (isSPACE(*s))
+ s++;
+ if (s >= send)
+ return numtype;
+ if (len == 10 && memEQ(sbegin, "0 but true", 10))
+ return 1;
+ return 0;
+}
+
char *
sv_2pv(sv, lp)
register SV *sv;
{
register char *s;
int olderrno;
+ SV *tsv;
if (!sv) {
*lp = 0;
return "";
}
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvPOKp(sv)) {
*lp = SvCUR(sv);
return SvPVX(sv);
}
if (SvIOKp(sv)) {
- (void)sprintf(tokenbuf,"%ld",SvIVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+ (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
+ tsv = Nullsv;
+ goto tokensave;
}
if (SvNOKp(sv)) {
- (void)sprintf(tokenbuf,"%.20g",SvNVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+ SET_NUMERIC_STANDARD();
+ Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
+ tsv = Nullsv;
+ goto tokensave;
}
- *lp = 0;
- return "";
+ if (!SvROK(sv)) {
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ *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";
case SVt_PVCV: s = "CODE"; break;
case SVt_PVGV: s = "GLOB"; break;
case SVt_PVFM: s = "FORMATLINE"; break;
+ case SVt_PVIO: s = "IO"; break;
default: s = "UNKNOWN"; break;
}
+ tsv = NEWSV(0,0);
if (SvOBJECT(sv))
- sprintf(tokenbuf, "%s=%s(0x%lx)",
- HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
+ sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
else
- sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
- s = tokenbuf;
+ sv_setpv(tsv, s);
+ sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
+ goto tokensaveref;
}
*lp = strlen(s);
return s;
}
if (SvREADONLY(sv)) {
- if (SvIOK(sv)) {
- (void)sprintf(tokenbuf,"%ld",SvIVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+ if (SvNOKp(sv)) {
+ SET_NUMERIC_STANDARD();
+ Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
+ tsv = Nullsv;
+ goto tokensave;
}
- if (SvNOK(sv)) {
- (void)sprintf(tokenbuf,"%.20g",SvNVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+ if (SvIOKp(sv)) {
+ (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
+ tsv = Nullsv;
+ goto tokensave;
}
if (dowarn)
- warn("Use of uninitialized variable");
+ warn(warn_uninit);
*lp = 0;
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 = SvPVX(sv);
olderrno = errno; /* some Xenix systems wipe out errno here */
-#if defined(scs) && defined(ns32000)
- gcvt(SvNVX(sv),20,s);
-#else
#ifdef apollo
if (SvNVX(sv) == 0.0)
(void)strcpy(s,"0");
else
#endif /*apollo*/
- (void)sprintf(s,"%.20g",SvNVX(sv));
-#endif /*scs*/
+ {
+ SET_NUMERIC_STANDARD();
+ 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--;
+ *--s = '\0';
#endif
}
- else if (SvIOK(sv)) {
+ else if (SvIOKp(sv)) {
+ U32 oldIOK = SvIOK(sv);
if (SvTYPE(sv) < SVt_PVIV)
sv_upgrade(sv, SVt_PVIV);
- SvGROW(sv, 11);
- s = SvPVX(sv);
olderrno = errno; /* some Xenix systems wipe out errno here */
- (void)sprintf(s,"%ld",SvIVX(sv));
+ sv_setpvf(sv, "%Vd", SvIVX(sv));
errno = olderrno;
- while (*s) s++;
+ s = SvEND(sv);
+ if (oldIOK)
+ SvIOK_on(sv);
+ else
+ SvIOKp_on(sv);
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- sv_grow(sv, 1);
- s = SvPVX(sv);
+ if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ warn(warn_uninit);
+ *lp = 0;
+ return "";
}
- *s = '\0';
*lp = s - SvPVX(sv);
SvCUR_set(sv, *lp);
SvPOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2pv(%s)\n",sv,SvPVX(sv)));
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "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:
+ if (!tsv)
+ tsv = newSVpv(tokenbuf, 0);
+ sv_2mortal(tsv);
+ *lp = SvCUR(tsv);
+ return SvPVX(tsv);
+ }
+ else {
+ STRLEN len;
+ char *t;
+
+ if (tsv) {
+ sv_2mortal(tsv);
+ t = SvPVX(tsv);
+ len = SvCUR(tsv);
+ }
+ else {
+ t = tokenbuf;
+ len = strlen(tokenbuf);
+ }
+#ifdef FIXNEGATIVEZERO
+ if (len == 2 && t[0] == '-' && t[1] == '0') {
+ t = "0";
+ len = 1;
+ }
+#endif
+ (void)SvUPGRADE(sv, SVt_PV);
+ *lp = len;
+ s = SvGROW(sv, len + 1);
+ SvCUR_set(sv, len);
+ (void)strcpy(s, t);
+ SvPOKp_on(sv);
+ return s;
+ }
}
/* This function is only called on magical items */
sv_2bool(sv)
register SV *sv;
{
- if (SvMAGICAL(sv))
+ if (SvGMAGICAL(sv))
mg_get(sv);
- if (SvROK(sv))
- return SvRV(sv) != 0;
+ 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)) &&
SV *dstr;
register SV *sstr;
{
- int flags;
+ register U32 sflags;
+ register int dtype;
+ register int stype;
if (sstr == dstr)
return;
if (SvTHINKFIRST(dstr)) {
- if (SvREADONLY(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 (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);
+ }
+#ifdef OVERLOAD
+ SvAMAGIC_off(dstr);
+#endif /* OVERLOAD */
/* There's a lot of redundancy below but we're going for speed here */
- switch (SvTYPE(sstr)) {
+ switch (stype) {
case SVt_NULL:
- SvOK_off(dstr);
+ (void)SvOK_off(dstr);
return;
case SVt_IV:
- if (SvTYPE(dstr) < SVt_IV)
- sv_upgrade(dstr, SVt_IV);
- else if (SvTYPE(dstr) == SVt_PV)
- sv_upgrade(dstr, SVt_PVIV);
- else if (SvTYPE(dstr) == SVt_NV)
- sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
+ if (dtype != SVt_IV && dtype < SVt_PVIV) {
+ if (dtype < SVt_IV)
+ sv_upgrade(dstr, SVt_IV);
+ else if (dtype == SVt_NV)
+ sv_upgrade(dstr, SVt_PVNV);
+ else
+ sv_upgrade(dstr, SVt_PVIV);
+ }
break;
case SVt_NV:
- if (SvTYPE(dstr) < SVt_NV)
- sv_upgrade(dstr, SVt_NV);
- else if (SvTYPE(dstr) == SVt_PV)
- sv_upgrade(dstr, SVt_PVNV);
- else if (SvTYPE(dstr) == SVt_PVIV)
- sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
+ if (dtype != SVt_NV && dtype < SVt_PVNV) {
+ if (dtype < SVt_NV)
+ sv_upgrade(dstr, SVt_NV);
+ else
+ sv_upgrade(dstr, SVt_PVNV);
+ }
break;
case SVt_RV:
- if (SvTYPE(dstr) < SVt_RV)
+ if (dtype < SVt_RV)
sv_upgrade(dstr, SVt_RV);
- flags = SvFLAGS(sstr);
+ 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 (SvTYPE(dstr) < SVt_PV)
+ case SVt_PVFM:
+ if (dtype < SVt_PV)
sv_upgrade(dstr, SVt_PV);
- flags = SvFLAGS(sstr);
break;
case SVt_PVIV:
- if (SvTYPE(dstr) < SVt_PVIV)
+ if (dtype < SVt_PVIV)
sv_upgrade(dstr, SVt_PVIV);
- flags = SvFLAGS(sstr);
break;
case SVt_PVNV:
- if (SvTYPE(dstr) < SVt_PVNV)
+ if (dtype < SVt_PVNV)
sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
break;
+
+ case SVt_PVLV:
+ sv_upgrade(dstr, SVt_PVLV);
+ 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:
- if (SvTYPE(dstr) <= SVt_PVGV) {
- if (SvTYPE(dstr) < SVt_PVGV)
+ if (dtype <= SVt_PVGV) {
+ glob_assign:
+ if (dtype != SVt_PVGV) {
+ char *name = GvNAME(sstr);
+ STRLEN len = GvNAMELEN(sstr);
sv_upgrade(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);
+ 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 */
+ }
+ /* ahem, death to those who redefine active sort subs */
+ else if (curstack == sortstack
+ && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
+ croak("Can't redefine active sort subroutine %s",
+ GvNAME(dstr));
+ (void)SvOK_off(dstr);
+ GvINTRO_off(dstr); /* one-shot flag */
+ gp_free((GV*)dstr);
GvGP(dstr) = gp_ref(GvGP(sstr));
- SvTAINT(sstr);
+ SvTAINT(dstr);
+ if (curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_on(dstr);
+ GvMULTI_on(dstr);
return;
}
/* FALL THROUGH */
default:
- if (SvTYPE(dstr) < SvTYPE(sstr))
- sv_upgrade(dstr, SvTYPE(sstr));
- if (SvMAGICAL(sstr)) {
+ if (SvGMAGICAL(sstr)) {
mg_get(sstr);
- flags = SvPRIVATE(sstr);
+ if (SvTYPE(sstr) != stype) {
+ stype = SvTYPE(sstr);
+ if (stype == SVt_PVGV && dtype <= SVt_PVGV)
+ goto glob_assign;
+ }
}
- else
- flags = SvFLAGS(sstr);
+ if (dtype < stype)
+ sv_upgrade(dstr, stype);
}
- SvPRIVATE(dstr) = SvPRIVATE(sstr) & ~(SVf_IOK|SVf_POK|SVf_NOK);
-
- if (SvROK(sstr)) {
- SvOK_off(dstr);
- if (SvTYPE(dstr) >= SVt_PV && SvPVX(dstr))
- Safefree(SvPVX(dstr));
- SvRV(dstr) = sv_ref(SvRV(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_ref(gp);
+ GvSV(dstr) = NEWSV(72,0);
+ GvLINE(dstr) = curcop->cop_line;
+ GvEGV(dstr) = (GV*)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) {
+ if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
+ SvREFCNT_dec(GvCV(dstr));
+ GvCV(dstr) = Nullcv;
+ GvCVGEN(dstr) = 0; /* Switch off cacheness. */
+ sub_generation++;
+ }
+ SAVESPTR(GvCV(dstr));
+ }
+ else
+ dref = (SV*)GvCV(dstr);
+ if (GvCV(dstr) != (CV*)sref) {
+ CV* cv = GvCV(dstr);
+ if (cv) {
+ if (!GvCVGEN((GV*)dstr) &&
+ (CvROOT(cv) || CvXSUB(cv)))
+ {
+ /* ahem, death to those who redefine
+ * active sort subs */
+ if (curstack == sortstack &&
+ sortcop == CvSTART(cv))
+ croak(
+ "Can't redefine active sort subroutine %s",
+ GvENAME((GV*)dstr));
+ if (cv_const_sv(cv))
+ warn("Constant subroutine %s redefined",
+ GvENAME((GV*)dstr));
+ else if (dowarn)
+ warn("Subroutine %s redefined",
+ GvENAME((GV*)dstr));
+ }
+ cv_ckproto(cv, (GV*)dstr,
+ SvPOK(sref) ? SvPVX(sref) : Nullch);
+ }
+ GvCV(dstr) = (CV*)sref;
+ GvCVGEN(dstr) = 0; /* Switch off cacheness. */
+ GvASSUMECV_on(dstr);
+ sub_generation++;
+ }
+ 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)) {
+ (void)SvOOK_off(dstr); /* backoff */
+ Safefree(SvPVX(dstr));
+ SvLEN(dstr)=SvCUR(dstr)=0;
+ }
+ }
+ (void)SvOK_off(dstr);
+ SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
SvROK_on(dstr);
- if (flags & SVf_NOK) {
+ if (sflags & SVp_NOK) {
SvNOK_on(dstr);
SvNVX(dstr) = SvNVX(sstr);
}
- if (flags & SVf_IOK) {
- SvIOK_on(dstr);
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
}
+#ifdef OVERLOAD
+ if (SvAMAGIC(sstr)) {
+ SvAMAGIC_on(dstr);
+ }
+#endif /* OVERLOAD */
}
- else if (flags & SVf_POK) {
+ else if (sflags & SVp_POK) {
/*
* Check to see if we can just swipe the string. If so, it's a
* 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(SvPVX(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));
}
+ (void)SvPOK_only(dstr);
SvPV_set(dstr, SvPVX(sstr));
SvLEN_set(dstr, SvLEN(sstr));
SvCUR_set(dstr, SvCUR(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 */
- SvPVX(sstr) = 0; /* so sstr frees uneventfully */
+ SvCUR_set(sstr, 0);
+ SvTEMP_off(sstr);
}
else { /* have to copy actual string */
- if (SvPVX(dstr)) { /* XXX ck type */
- SvOOK_off(dstr);
- }
- sv_setpvn(dstr,SvPVX(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 (flags & SVf_NOK) {
+ if (sflags & SVp_NOK) {
SvNOK_on(dstr);
SvNVX(dstr) = SvNVX(sstr);
}
- if (flags & SVf_IOK) {
- SvIOK_on(dstr);
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
}
}
- else if (flags & SVf_NOK) {
+ else if (sflags & SVp_NOK) {
SvNVX(dstr) = SvNVX(sstr);
- SvNOK_only(dstr);
+ (void)SvNOK_only(dstr);
if (SvIOK(sstr)) {
- SvIOK_on(dstr);
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
}
}
- else if (flags & SVf_IOK) {
- SvIOK_only(dstr);
+ else if (sflags & SVp_IOK) {
+ (void)SvIOK_only(dstr);
SvIVX(dstr) = SvIVX(sstr);
}
else {
- SvOK_off(dstr);
+ (void)SvOK_off(dstr);
}
SvTAINT(dstr);
}
void
sv_setpvn(sv,ptr,len)
register SV *sv;
-register char *ptr;
+register const char *ptr;
register STRLEN len;
{
+ assert(len >= 0); /* STRLEN is probably unsigned, so this may
+ elicit a warning, but it won't hurt. */
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
}
if (!ptr) {
- SvOK_off(sv);
+ (void)SvOK_off(sv);
return;
}
- 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);
- if (ptr)
- Move(ptr,SvPVX(sv),len,char);
+ Move(ptr,SvPVX(sv),len,char);
SvCUR_set(sv, len);
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
void
sv_setpv(sv,ptr)
register SV *sv;
-register char *ptr;
+register const char *ptr;
{
register STRLEN len;
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
}
if (!ptr) {
- SvOK_off(sv);
+ (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,SvPVX(sv),len+1,char);
SvCUR_set(sv, len);
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
register STRLEN len;
{
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
if (!SvUPGRADE(sv, SVt_PV))
return;
if (!ptr) {
- SvOK_off(sv);
+ (void)SvOK_off(sv);
return;
}
if (SvPVX(sv))
SvCUR_set(sv, len);
SvLEN_set(sv, len+1);
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
{
register STRLEN delta;
- if (!ptr || !SvPOK(sv))
+ if (!ptr || !SvPOKp(sv))
return;
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
if (SvROK(sv))
sv_unref(sv);
SvIVX(sv) = 0;
SvFLAGS(sv) |= SVf_OOK;
}
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK);
+ SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
delta = ptr - SvPVX(sv);
SvLEN(sv) -= delta;
SvCUR(sv) -= delta;
register STRLEN len;
{
STRLEN tlen;
- char *s;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- s = SvPV(sv, 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 */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
{
register STRLEN len;
STRLEN tlen;
- char *s;
+ char *junk;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
if (!ptr)
return;
- s = SvPV(sv, tlen);
+ junk = SvPV_force(sv, tlen);
len = strlen(ptr);
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 */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (len) {
sv_upgrade(sv, SVt_PV);
SvGROW(sv, len + 1);
return sv;
}
+/* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
+
void
sv_magic(sv, obj, how, name, namlen)
register SV *sv;
SV *obj;
-char how;
+int how;
char *name;
I32 namlen;
{
MAGIC* mg;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- }
- if (SvMAGICAL(sv)) {
- if (SvMAGIC(sv) && mg_find(sv, how))
+ if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", 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;
- SvMAGICAL_on(sv);
- SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK);
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
}
Newz(702,mg, 1, MAGIC);
mg->mg_moremagic = SvMAGIC(sv);
SvMAGIC(sv) = mg;
- mg->mg_obj = sv_ref(obj);
+ 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 = nsavestr(name, namlen);
+ if (name)
+ if (namlen >= 0)
+ mg->mg_ptr = savepvn(name, namlen);
+ else if (namlen == HEf_SVKEY)
+ mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
+
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 'E':
mg->mg_virtual = &vtbl_env;
break;
+ case 'f':
+ mg->mg_virtual = &vtbl_fm;
+ break;
case 'e':
mg->mg_virtual = &vtbl_envelem;
break;
case 'i':
mg->mg_virtual = &vtbl_isaelem;
break;
+ case 'k':
+ mg->mg_virtual = &vtbl_nkeys;
+ break;
case 'L':
+ SvRMAGICAL_on(sv);
mg->mg_virtual = 0;
break;
case 'l':
mg->mg_virtual = &vtbl_dbline;
break;
+#ifdef USE_LOCALE_COLLATE
+ case 'o':
+ mg->mg_virtual = &vtbl_collxfrm;
+ break;
+#endif /* USE_LOCALE_COLLATE */
case 'P':
mg->mg_virtual = &vtbl_pack;
break;
case 'p':
+ case 'q':
mg->mg_virtual = &vtbl_packelem;
break;
case 'S':
break;
case 't':
mg->mg_virtual = &vtbl_taint;
+ mg->mg_len = 1;
break;
case 'U':
mg->mg_virtual = &vtbl_uvar;
case 'x':
mg->mg_virtual = &vtbl_substr;
break;
+ case 'y':
+ mg->mg_virtual = &vtbl_defelem;
+ break;
case '*':
mg->mg_virtual = &vtbl_glob;
break;
case '#':
mg->mg_virtual = &vtbl_arylen;
break;
- default:
+ 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:
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);
}
int
sv_unmagic(sv, type)
SV* sv;
-char type;
+int type;
{
MAGIC* mg;
MAGIC** mgp;
- if (!SvMAGICAL(sv))
+ if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
return 0;
mgp = &SvMAGIC(sv);
for (mg = *mgp; mg; mg = *mgp) {
if (vtbl && vtbl->svt_free)
(*vtbl->svt_free)(sv, mg);
if (mg->mg_ptr && mg->mg_type != 'g')
- Safefree(mg->mg_ptr);
- sv_free(mg->mg_obj);
+ if (mg->mg_len >= 0)
+ Safefree(mg->mg_ptr);
+ else if (mg->mg_len == HEf_SVKEY)
+ SvREFCNT_dec((SV*)mg->mg_ptr);
+ if (mg->mg_flags & MGf_REFCOUNTED)
+ SvREFCNT_dec(mg->mg_obj);
Safefree(mg);
}
else
}
if (!SvMAGIC(sv)) {
SvMAGICAL_off(sv);
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- SvFLAGS(sv) |= SvPRIVATE(sv) & (SVf_IOK|SVf_NOK|SVf_POK);
- SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
+ SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
}
return 0;
register char *bigend;
register I32 i;
- if (SvTHINKFIRST(bigstr)) {
- if (SvREADONLY(bigstr))
- croak(no_modify);
- if (SvROK(bigstr))
- sv_unref(bigstr);
- }
- 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 = SvPVX(bigstr);
+ big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
mid = big + offset + len;
midend = bigend = big + SvCUR(bigstr);
bigend += i;
{
U32 refcnt = SvREFCNT(sv);
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(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;
}
SvREFCNT(sv) = 0;
sv_clear(sv);
+ assert(!SvREFCNT(sv));
StructCopy(nsv,sv,SV);
SvREFCNT(sv) = refcnt;
+ SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
del_SV(nsv);
}
assert(SvREFCNT(sv) == 0);
if (SvOBJECT(sv)) {
- dSP;
- BINOP myop; /* fake syntax tree node */
- GV* destructor;
-
- SvOBJECT_off(sv); /* Curse the object. */
-
- ENTER;
- SAVETMPS;
- SAVESPTR(curcop);
- SAVESPTR(op);
- curcop = &compiling;
- curstash = SvSTASH(sv);
- destructor = gv_fetchpv("DESTROY", FALSE);
-
- if (destructor && GvCV(destructor)) {
- SV* ref = sv_mortalcopy(&sv_undef);
- sv_upgrade(ref, SVt_RV);
- SvRV(ref) = sv_ref(sv);
- SvROK_on(ref);
-
- 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();
- if (op)
- run();
- stack_sp--;
- SvREFCNT(sv) = 0;
- SvTYPE(ref) = SVt_NULL;
- free_tmps();
- }
- LEAVE;
+ if (defstash) { /* Still have a symbol table? */
+ dSP;
+ GV* destructor;
+
+ ENTER;
+ SAVEFREESV(SvSTASH(sv));
+
+ destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
+ if (destructor) {
+ SV ref;
+
+ Zero(&ref, 1, SV);
+ sv_upgrade(&ref, SVt_RV);
+ SvRV(&ref) = SvREFCNT_inc(sv);
+ SvROK_on(&ref);
+ SvREFCNT(&ref) = 1; /* Fake, but otherwise
+ creating+destructing a ref
+ leads to disaster. */
+
+ EXTEND(SP, 2);
+ PUSHMARK(SP);
+ PUSHs(&ref);
+ PUTBACK;
+ perl_call_sv((SV*)GvCV(destructor),
+ G_DISCARD|G_EVAL|G_KEEPERR);
+ del_XRV(SvANY(&ref));
+ SvREFCNT(sv)--;
+ }
+
+ 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 (SvREFCNT(sv)) {
+ SV *ret;
+ if ( perldb
+ && (ret = perl_get_sv("DB::ret", FALSE))
+ && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
+ /* Debugger is prone to dangling references. */
+ SvRV(ret) = 0;
+ SvROK_off(ret);
+ SvREFCNT(sv) = 0;
+ }
+ else {
+ if (in_clean_objs)
+ croak("DESTROY created new reference to dead object");
+ /* DESTROY gave object new lease on life */
+ return;
+ }
+ }
}
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
+ mg_free(sv);
switch (SvTYPE(sv)) {
- case SVt_PVFM:
- goto freemagic;
+ case SVt_PVIO:
+ if (IoIFP(sv) != PerlIO_stdin() &&
+ IoIFP(sv) != PerlIO_stdout() &&
+ IoIFP(sv) != PerlIO_stderr())
+ 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:
- cv_clear((CV*)sv);
- goto freemagic;
+ case SVt_PVFM:
+ cv_undef((CV*)sv);
+ goto freescalar;
case SVt_PVHV:
- hv_clear((HV*)sv);
- goto freemagic;
+ hv_undef((HV*)sv);
+ break;
case SVt_PVAV:
- av_clear((AV*)sv);
- goto freemagic;
+ av_undef((AV*)sv);
+ break;
+ case SVt_PVGV:
+ gp_free((GV*)sv);
+ Safefree(GvNAME(sv));
+ /* FALL THROUGH */
case SVt_PVLV:
- goto freemagic;
case SVt_PVMG:
- freemagic:
- if (SvMAGICAL(sv))
- mg_free(sv);
case SVt_PVNV:
case SVt_PVIV:
- SvOOK_off(sv);
+ freescalar:
+ (void)SvOOK_off(sv);
/* FALL THROUGH */
case SVt_PV:
- if (SvPVX(sv))
+ case SVt_RV:
+ if (SvROK(sv))
+ SvREFCNT_dec(SvRV(sv));
+ else if (SvPVX(sv) && SvLEN(sv))
Safefree(SvPVX(sv));
break;
+/*
case SVt_NV:
- break;
case SVt_IV:
- break;
- case SVt_RV:
- sv_free(SvRV(sv));
- break;
case SVt_NULL:
break;
+*/
}
switch (SvTYPE(sv)) {
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;
{
if (sv)
{
if (!sv)
return;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv)) {
- if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
- return;
- }
+ if (SvREADONLY(sv)) {
+ if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
+ return;
}
if (SvREFCNT(sv) == 0) {
+ if (SvFLAGS(sv) & SVf_BREAK)
+ return;
+ if (in_clean_all) /* All is fair */
+ return;
warn("Attempt to free unreferenced scalar");
return;
}
+ if (--SvREFCNT(sv) > 0)
+ return;
#ifdef DEBUGGING
if (SvTEMP(sv)) {
warn("Attempt to free temp prematurely");
return;
}
#endif
- if (--SvREFCNT(sv) > 0)
- return;
sv_clear(sv);
- DEB(SvTYPE(sv) = 0xff;)
- del_SV(sv);
+ if (! SvREFCNT(sv))
+ del_SV(sv);
}
STRLEN
sv_len(sv)
register SV *sv;
{
- char *s;
+ char *junk;
STRLEN len;
if (!sv)
return 0;
- s = SvPV(sv, len);
+ if (SvGMAGICAL(sv))
+ len = mg_len(sv);
+ else
+ junk = SvPV(sv, len);
return len;
}
if (cur1 != cur2)
return 0;
- return !bcmp(pv1, pv2, cur1);
+ return memEQ(pv1, pv2, cur1);
}
I32
-sv_cmp(str1,str2)
+sv_cmp(str1, str2)
register SV *str1;
register SV *str2;
{
+ STRLEN cur1 = 0;
+ char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
+ STRLEN cur2 = 0;
+ char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
I32 retval;
- char *pv1;
- STRLEN cur1;
- char *pv2;
- STRLEN cur2;
-
- if (!str1) {
- pv1 = "";
- cur1 = 0;
- }
- else
- pv1 = SvPV(str1, cur1);
-
- if (!str2) {
- pv2 = "";
- cur2 = 0;
- }
- else
- pv2 = SvPV(str2, cur2);
if (!cur1)
return cur2 ? -1 : 0;
+
if (!cur2)
return 1;
- if (cur1 < cur2) {
- /*SUPPRESS 560*/
- if (retval = memcmp(pv1, pv2, cur1))
- return retval < 0 ? -1 : 1;
- else
- return -1;
- }
- /*SUPPRESS 560*/
- else if (retval = memcmp(pv1, pv2, cur2))
+ retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
+
+ if (retval)
return retval < 0 ? -1 : 1;
- else if (cur1 == cur2)
+
+ if (cur1 == cur2)
return 0;
else
- return 1;
+ return cur1 < cur2 ? -1 : 1;
+}
+
+I32
+sv_cmp_locale(sv1, sv2)
+register SV *sv1;
+register SV *sv2;
+{
+#ifdef USE_LOCALE_COLLATE
+
+ char *pv1, *pv2;
+ STRLEN len1, len2;
+ I32 retval;
+
+ if (collation_standard)
+ goto raw_compare;
+
+ len1 = 0;
+ pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
+ len2 = 0;
+ pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
+
+ if (!pv1 || !len1) {
+ if (pv2 && len2)
+ return -1;
+ else
+ goto raw_compare;
+ }
+ else {
+ if (!pv2 || !len2)
+ return 1;
+ }
+
+ retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
+
+ if (retval)
+ return retval < 0 ? -1 : 1;
+
+ /*
+ * When the result of collation is equality, that doesn't mean
+ * that there are no differences -- some locales exclude some
+ * characters from consideration. So to avoid false equalities,
+ * we use the raw string as a tiebreaker.
+ */
+
+ raw_compare:
+ /* FALL THROUGH */
+
+#endif /* USE_LOCALE_COLLATE */
+
+ return sv_cmp(sv1, sv2);
+}
+
+#ifdef USE_LOCALE_COLLATE
+/*
+ * Any scalar variable may carry an 'o' magic that contains the
+ * scalar data of the variable transformed to such a format that
+ * a normal memory comparison can be used to compare the data
+ * according to the locale settings.
+ */
+char *
+sv_collxfrm(sv, nxp)
+ SV *sv;
+ STRLEN *nxp;
+{
+ MAGIC *mg;
+
+ mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
+ if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
+ char *s, *xf;
+ STRLEN len, xlen;
+
+ if (mg)
+ Safefree(mg->mg_ptr);
+ s = SvPV(sv, len);
+ if ((xf = mem_collxfrm(s, len, &xlen))) {
+ if (SvREADONLY(sv)) {
+ SAVEFREEPV(xf);
+ *nxp = xlen;
+ return xf;
+ }
+ if (! mg) {
+ sv_magic(sv, 0, 'o', 0, 0);
+ mg = mg_find(sv, 'o');
+ assert(mg);
+ }
+ mg->mg_ptr = xf;
+ mg->mg_len = xlen;
+ }
+ else {
+ if (mg) {
+ mg->mg_ptr = NULL;
+ mg->mg_len = -1;
+ }
+ }
+ }
+ if (mg && mg->mg_ptr) {
+ *nxp = mg->mg_len;
+ return mg->mg_ptr + sizeof(collation_ix);
+ }
+ else {
+ *nxp = 0;
+ return NULL;
+ }
}
+#endif /* USE_LOCALE_COLLATE */
+
char *
sv_gets(sv,fp,append)
register SV *sv;
-register FILE *fp;
+register PerlIO *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;
- STRLEN bpx;
- I32 shortbuffered;
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(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;
+ SvSCREAM_off(sv);
+
+ 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 */
- i = getc(fp);
+ if (PerlIO_eof(fp))
+ return 0;
+ i = PerlIO_getc(fp);
if (i != '\n') {
- ungetc(i,fp);
+ if (i == -1)
+ return 0;
+ PerlIO_ungetc(fp,i);
break;
}
} while (i != EOF);
}
-#ifdef STDSTDIO /* Here is some breathtakingly efficient cheating */
- cnt = fp->_cnt; /* get count into register */
- SvPOK_only(sv); /* validate pointer */
+
+ /* See if we know enough about I/O mechanism to cheat it ! */
+
+ /* This used to be #ifdef test - it is made run-time test for ease
+ of abstracting out stdio interface. One call should be cheap
+ enough here - and may even be a macro allowing compile
+ time optimization.
+ */
+
+ if (PerlIO_fast_gets(fp)) {
+
+ /*
+ * 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;
+
+#if defined(VMS) && defined(PERLIO_IS_STDIO)
+ /* An ungetc()d char is handled separately from the regular
+ * buffer, so we getc() it back out and stuff it in the buffer.
+ */
+ i = PerlIO_getc(fp);
+ if (i == EOF) return 0;
+ *(--((*fp)->_ptr)) = (unsigned char) i;
+ (*fp)->_cnt++;
+#endif
+
+ /* Here is some breathtakingly efficient cheating */
+
+ cnt = PerlIO_get_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;
- SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */
+ /* remember that cnt can be negative */
+ SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
}
}
else
shortbuffered = 0;
- bp = SvPVX(sv) + append; /* move these two too to registers */
- ptr = fp->_ptr;
+ bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
+ ptr = (STDCHAR*)PerlIO_get_ptr(fp);
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
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 */
+ cnt--;
+ if ((*bp++ = *ptr++) == rslast) /* really | dust */
+ goto thats_all_folks; /* screams | sed :-) */
+ }
+ }
+ else {
+ Copy(ptr, bp, cnt, char); /* 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 - SvPVX(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 = SvPVX(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
continue;
}
- fp->_cnt = cnt; /* deregisterize cnt and ptr */
- fp->_ptr = ptr;
- i = _filbuf(fp); /* get more characters */
- cnt = fp->_cnt;
- ptr = fp->_ptr; /* reregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
+ /* This used to call 'filbuf' in stdio form, but as that behaves like
+ getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
+ another abstraction. */
+ i = PerlIO_getc(fp); /* get more characters */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
+ cnt = PerlIO_get_cnt(fp);
+ ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+
+ if (i == EOF) /* all done for ever? */
+ goto thats_really_all_folks;
- bpx = bp - SvPVX(sv); /* prepare for possible relocation */
+ bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
SvCUR_set(sv, bpx);
SvGROW(sv, bpx + cnt + 2);
- bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
+
+ *bp++ = i; /* store character from PerlIO_getc */
- 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 - SvPVX(sv) < rslen || bcmp(bp - rslen, rs, rslen)))
- goto screamer; /* go back to the fray */
+ if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
+ memNE((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;
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
*bp = '\0';
- SvCUR_set(sv, bp - SvPVX(sv)); /* set length */
-
-#else /* !STDSTDIO */ /* The big, slow, and stupid way */
-
+ SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: done, len=%d, string=|%.*s|\n",
+ SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
+ }
+ else
{
- char buf[8192];
- register char * bpe = buf + sizeof(buf) - 3;
-
-screamer:
- bp = buf;
- while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ;
+ /*The big, slow, and stupid way */
+ STDCHAR buf[8192];
+
+screamer2:
+ if (rslen) {
+ register STDCHAR *bpe = buf + sizeof(buf);
+ bp = buf;
+ while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
+ ; /* keep reading */
+ cnt = bp - buf;
+ }
+ else {
+ cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
+ /* Accomodate broken VAXC compiler, which applies U8 cast to
+ * both args of ?: operator, causing EOF to change into 255
+ */
+ if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
+ }
if (append)
- sv_catpvn(sv, buf, bp - buf);
+ sv_catpvn(sv, (char *) buf, cnt);
else
- sv_setpvn(sv, buf, bp - buf);
- if (i != EOF /* joy */
- &&
- (i != newline
- ||
- (rslen > 1
- &&
- (SvCUR(sv) < rslen
- ||
- bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rs, rslen)
- )
- )
- )
- )
+ sv_setpvn(sv, (char *) buf, cnt);
+
+ if (i != EOF && /* joy */
+ (!rslen ||
+ SvCUR(sv) < rslen ||
+ memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
{
append = -1;
- goto screamer;
+ /*
+ * If we're reading from a TTY and we get a short read,
+ * indicating that the user hit his EOF character, we need
+ * to notice it now, because if we try to read from the TTY
+ * again, the EOF condition will disappear.
+ *
+ * The comparison of cnt to sizeof(buf) is an optimization
+ * that prevents unnecessary calls to feof().
+ *
+ * - jik 9/25/96
+ */
+ if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
+ goto screamer2;
}
}
-#endif /* STDSTDIO */
-
- if (rspara) {
- while (i != EOF) {
- i = getc(fp);
+ if (RsPARA(rs)) { /* have to do this both before and after */
+ while (i != EOF) { /* to make sure file boundaries work right */
+ i = PerlIO_getc(fp);
if (i != '\n') {
- ungetc(i,fp);
+ PerlIO_ungetc(fp,i);
break;
}
}
}
- return SvCUR(sv) - append ? SvPVX(sv) : Nullch;
+
+ return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
}
+
void
sv_inc(sv)
register SV *sv;
if (!sv)
return;
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
+#endif /* OVERLOAD */
+ sv_unref(sv);
+ }
}
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv))
mg_get(sv);
- flags = SvPRIVATE(sv);
- }
- else
- flags = SvFLAGS(sv);
- if (flags & SVf_IOK) {
- ++SvIVX(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_NOK) {
+ (void)SvNOK_only(sv);
+ SvNVX(sv) += 1.0;
return;
}
- if (flags & SVf_NOK) {
- SvNVX(sv) += 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_IOK) {
+ if (SvIVX(sv) == IV_MAX)
+ sv_setnv(sv, (double)IV_MAX + 1.0);
+ else {
+ (void)SvIOK_only(sv);
+ ++SvIVX(sv);
+ }
return;
}
- if (!(flags & SVf_POK) || !*SvPVX(sv)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
+ if (!(flags & SVp_POK) || !*SvPVX(sv)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
SvNVX(sv) = 1.0;
- SvNOK_only(sv);
+ (void)SvNOK_only(sv);
return;
}
d = SvPVX(sv);
while (isALPHA(*d)) d++;
while (isDIGIT(*d)) d++;
if (*d) {
- sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
+ SET_NUMERIC_STANDARD();
+ sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
return;
}
d--;
if (!sv)
return;
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
+ if (SvREADONLY(sv) && curcop != &compiling)
croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
+ if (SvROK(sv)) {
+#ifdef OVERLOAD
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
+#endif /* OVERLOAD */
+ sv_unref(sv);
+ }
}
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv))
mg_get(sv);
- flags = SvPRIVATE(sv);
- }
- else
- flags = SvFLAGS(sv);
- if (flags & SVf_IOK) {
- --SvIVX(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_NOK) {
+ SvNVX(sv) -= 1.0;
+ (void)SvNOK_only(sv);
return;
}
- if (flags & SVf_NOK) {
- SvNVX(sv) -= 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_IOK) {
+ if (SvIVX(sv) == IV_MIN)
+ sv_setnv(sv, (double)IV_MIN - 1.0);
+ else {
+ (void)SvIOK_only(sv);
+ --SvIVX(sv);
+ }
return;
}
- if (!(flags & SVf_POK)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
+ if (!(flags & SVp_POK)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
SvNVX(sv) = -1.0;
- SvNOK_only(sv);
+ (void)SvNOK_only(sv);
return;
}
- sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
+ SET_NUMERIC_STANDARD();
+ sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
}
/* 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 += (tmps_max < 512) ? 128 : 512;
+ Renew(tmps_stack, tmps_max, SV*);
+}
+
SV *
sv_mortalcopy(oldstr)
SV *oldstr;
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(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(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 (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- 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;
}
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (!len)
len = strlen(s);
sv_setpvn(sv,s,len);
return sv;
}
+#ifdef I_STDARG
+SV *
+newSVpvf(const char* pat, ...)
+#else
+/*VARARGS0*/
+SV *
+newSVpvf(pat, va_alist)
+const char *pat;
+va_dcl
+#endif
+{
+ register SV *sv;
+ va_list args;
+
+ new_SV(sv);
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+ return sv;
+}
+
+
SV *
newSVnv(n)
double n;
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(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;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(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(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;
+}
+
+#ifdef CRIPPLED_CC
+SV *
+newRV_noinc(ref)
+SV *ref;
+{
+ register SV *sv;
+
+ sv = newRV(ref);
+ SvREFCNT_dec(ref);
+ return sv;
+}
+#endif /* CRIPPLED_CC */
+
/* make an exact duplicate of old */
SV *
if (!old)
return Nullsv;
- if (SvTYPE(old) == 0xff) {
+ if (SvTYPE(old) == SVTYPEMASK) {
warn("semi-panic: attempt to dup freed string");
return Nullsv;
}
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 1;
+ SvFLAGS(sv) = 0;
if (SvTEMP(old)) {
SvTEMP_off(old);
sv_setsv(sv,old);
for ( ; i <= max; i++) {
todo[i] = 1;
}
- for (i = 0; i <= HvMAX(stash); i++) {
+ for (i = 0; i <= (I32) HvMAX(stash); i++) {
for (entry = HvARRAY(stash)[i];
entry;
- entry = entry->hent_next) {
- if (!todo[(U8)*entry->hent_key])
+ entry = HeNEXT(entry)) {
+ if (!todo[(U8)*HeKEY(entry)])
continue;
- gv = (GV*)entry->hent_val;
+ gv = (GV*)HeVAL(entry);
sv = GvSV(gv);
- SvOK_off(sv);
+ (void)SvOK_off(sv);
if (SvTYPE(sv) >= SVt_PV) {
SvCUR_set(sv, 0);
- SvTAINT(sv);
if (SvPVX(sv) != Nullch)
*SvPVX(sv) = '\0';
+ SvTAINT(sv);
}
if (GvAV(gv)) {
av_clear(GvAV(gv));
}
- if (GvHV(gv)) {
+ if (GvHV(gv) && !HvNAME(GvHV(gv))) {
hv_clear(GvHV(gv));
+#ifndef VMS /* VMS has no environ array */
if (gv == envgv)
environ[0] = Nullch;
+#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;
+}
+
CV *
sv_2cv(sv, st, gvp, lref)
SV *sv;
if (!sv)
return *gvp = Nullgv, Nullcv;
switch (SvTYPE(sv)) {
- case SVt_RV:
- is_rv:
- cv = (CV*)SvRV(sv);
- if (SvTYPE(cv) != SVt_PVCV)
- croak("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 (SvROK(sv))
- goto is_rv;
+ 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(SvPV(sv, na), lref);
+ gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
*gvp = gv;
if (!gv)
return Nullcv;
*st = GvESTASH(gv);
- return GvCV(gv);
+ fix_gv:
+ if (lref && !GvCVu(gv)) {
+ SV *tmpsv;
+ ENTER;
+ tmpsv = NEWSV(704,0);
+ gv_efullname3(tmpsv, gv, Nullch);
+ newSUB(start_subparse(FALSE, 0),
+ newSVOP(OP_CONST, 0, tmpsv),
+ Nullop,
+ Nullop);
+ LEAVE;
+ if (!GvCVu(gv))
+ croak("Unable to create sub named \"%s\"", SvPV(sv,na));
+ }
+ return GvCVu(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;
}
}
}
-#endif /* SvTRUE */
+#endif /* !SvTRUE */
+
+#ifndef SvIV
+IV
+SvIV(sv)
+register SV *sv;
+{
+ if (SvIOK(sv))
+ return SvIVX(sv);
+ return sv_2iv(sv);
+}
+#endif /* !SvIV */
+
+#ifndef SvUV
+UV
+SvUV(sv)
+register SV *sv;
+{
+ if (SvIOK(sv))
+ return SvUVX(sv);
+ return sv_2uv(sv);
+}
+#endif /* !SvUV */
#ifndef SvNV
-double SvNV(Sv)
-register SV *Sv;
+double
+SvNV(sv)
+register SV *sv;
{
- if (SvNOK(Sv))
- return SvNVX(Sv);
- if (SvIOK(Sv))
- return (double)SvIVX(Sv);
- return sv_2nv(Sv);
+ if (SvNOK(sv))
+ return SvNVX(sv);
+ return sv_2nv(sv);
}
-#endif /* SvNV */
+#endif /* !SvNV */
#ifdef CRIPPLED_CC
char *
SV *sv;
STRLEN *lp;
{
- if (SvPOK(sv))
- return SvPVX(sv)
+ 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(PerlIO_printf(Perl_debug_log, "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 (!sv)
+ return 0;
+ if (SvGMAGICAL(sv))
+ mg_get(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 (!sv)
+ return 0;
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
if (!SvROK(sv))
return 0;
sv = (SV*)SvRV(sv);
}
SV*
-sv_setptrobj(rv, ptr, name)
+newSVrv(rv, classname)
SV *rv;
-void *ptr;
-char *name;
+char *classname;
{
- HV *stash;
SV *sv;
- if (!ptr)
- return rv;
-
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
- sv_setnv(sv, (double)(unsigned long)ptr);
+ new_SV(sv);
+ SvANY(sv) = 0;
+ SvREFCNT(sv) = 0;
+ SvFLAGS(sv) = 0;
sv_upgrade(rv, SVt_RV);
- SvRV(rv) = sv_ref(sv);
+ SvRV(rv) = SvREFCNT_inc(sv);
SvROK_on(rv);
- stash = fetch_stash(newSVpv(name,0), TRUE);
- SvOBJECT_on(sv);
- SvUPGRADE(sv, SVt_PVMG);
- SvSTASH(sv) = stash;
+ 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)) {
+ if (SvTYPE(ref) != SVt_PVIO)
+ --sv_objcount;
+ SvREFCNT_dec(SvSTASH(ref));
+ }
+ }
+ SvOBJECT_on(ref);
+ if (SvTYPE(ref) != SVt_PVIO)
+ ++sv_objcount;
+ (void)SvUPGRADE(ref, SVt_PVMG);
+ SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
+
+#ifdef OVERLOAD
+ if (Gv_AMG(stash))
+ SvAMAGIC_on(sv);
+ else
+ SvAMAGIC_off(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((GV*)sv);
+ sv_unmagic(sv, '*');
+ Safefree(GvNAME(sv));
+ GvMULTI_off(sv);
+ SvFLAGS(sv) &= ~SVTYPEMASK;
+ SvFLAGS(sv) |= SVt_PVMG;
+}
+
void
sv_unref(sv)
SV* sv;
{
- sv_free(SvRV(sv));
+ SV* rv = SvRV(sv);
+
SvRV(sv) = 0;
SvROK_off(sv);
- if (!SvREADONLY(sv))
- SvTHINKFIRST_off(sv);
+ if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
+ SvREFCNT_dec(rv);
+ else
+ sv_2mortal(rv); /* Schedule for freeing later */
+}
+
+void
+sv_taint(sv)
+SV *sv;
+{
+ sv_magic((sv), Nullsv, 't', Nullch, 0);
+}
+
+void
+sv_untaint(sv)
+SV *sv;
+{
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
+ MAGIC *mg = mg_find(sv, 't');
+ if (mg)
+ mg->mg_len &= ~1;
+ }
+}
+
+bool
+sv_tainted(sv)
+SV *sv;
+{
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
+ MAGIC *mg = mg_find(sv, 't');
+ if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
+ return TRUE;
+ }
+ return FALSE;
+}
+
+#ifdef I_STDARG
+void
+sv_setpvf(SV *sv, const char* pat, ...)
+#else
+/*VARARGS0*/
+void
+sv_setpvf(sv, pat, va_alist)
+ SV *sv;
+ const char *pat;
+ va_dcl
+#endif
+{
+ va_list args;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+}
+
+#ifdef I_STDARG
+void
+sv_catpvf(SV *sv, const char* pat, ...)
+#else
+/*VARARGS0*/
+void
+sv_catpvf(sv, pat, va_alist)
+ SV *sv;
+ const char *pat;
+ va_dcl
+#endif
+{
+ va_list args;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+}
+
+void
+sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
+ SV *sv;
+ const char *pat;
+ STRLEN patlen;
+ va_list *args;
+ SV **svargs;
+ I32 svmax;
+ bool *used_locale;
+{
+ sv_setpvn(sv, "", 0);
+ sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
+}
+
+void
+sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
+ SV *sv;
+ const char *pat;
+ STRLEN patlen;
+ va_list *args;
+ SV **svargs;
+ I32 svmax;
+ bool *used_locale;
+{
+ char *p;
+ char *q;
+ char *patend;
+ STRLEN origlen;
+ I32 svix = 0;
+ static char nullstr[] = "(null)";
+
+ /* no matter what, this is a string now */
+ (void)SvPV_force(sv, origlen);
+
+ /* special-case "", "%s", and "%_" */
+ if (patlen == 0)
+ return;
+ if (patlen == 2 && pat[0] == '%') {
+ switch (pat[1]) {
+ case 's':
+ if (args) {
+ char *s = va_arg(*args, char*);
+ sv_catpv(sv, s ? s : nullstr);
+ }
+ else if (svix < svmax)
+ sv_catsv(sv, *svargs);
+ return;
+ case '_':
+ if (args) {
+ sv_catsv(sv, va_arg(*args, SV*));
+ return;
+ }
+ /* See comment on '_' below */
+ break;
+ }
+ }
+
+ patend = (char*)pat + patlen;
+ for (p = (char*)pat; p < patend; p = q) {
+ bool alt = FALSE;
+ bool left = FALSE;
+ char fill = ' ';
+ char plus = 0;
+ char intsize = 0;
+ STRLEN width = 0;
+ STRLEN zeros = 0;
+ bool has_precis = FALSE;
+ STRLEN precis = 0;
+
+ char esignbuf[4];
+ STRLEN esignlen = 0;
+
+ char *eptr = Nullch;
+ STRLEN elen = 0;
+ char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
+
+ static char *efloatbuf = Nullch;
+ static STRLEN efloatsize = 0;
+
+ char c;
+ int i;
+ unsigned base;
+ IV iv;
+ UV uv;
+ double nv;
+ STRLEN have;
+ STRLEN need;
+ STRLEN gap;
+
+ for (q = p; q < patend && *q != '%'; ++q) ;
+ if (q > p) {
+ sv_catpvn(sv, p, q - p);
+ p = q;
+ }
+ if (q++ >= patend)
+ break;
+
+ /* FLAGS */
+
+ while (*q) {
+ switch (*q) {
+ case ' ':
+ case '+':
+ plus = *q++;
+ continue;
+
+ case '-':
+ left = TRUE;
+ q++;
+ continue;
+
+ case '0':
+ fill = *q++;
+ continue;
+
+ case '#':
+ alt = TRUE;
+ q++;
+ continue;
+
+ default:
+ break;
+ }
+ break;
+ }
+
+ /* WIDTH */
+
+ switch (*q) {
+ case '1': case '2': case '3':
+ case '4': case '5': case '6':
+ case '7': case '8': case '9':
+ width = 0;
+ while (isDIGIT(*q))
+ width = width * 10 + (*q++ - '0');
+ break;
+
+ case '*':
+ if (args)
+ i = va_arg(*args, int);
+ else
+ i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ left |= (i < 0);
+ width = (i < 0) ? -i : i;
+ q++;
+ break;
+ }
+
+ /* PRECISION */
+
+ if (*q == '.') {
+ q++;
+ if (*q == '*') {
+ if (args)
+ i = va_arg(*args, int);
+ else
+ i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ precis = (i < 0) ? 0 : i;
+ q++;
+ }
+ else {
+ precis = 0;
+ while (isDIGIT(*q))
+ precis = precis * 10 + (*q++ - '0');
+ }
+ has_precis = TRUE;
+ }
+
+ /* SIZE */
+
+ switch (*q) {
+ case 'l':
+#if 0 /* when quads have better support within Perl */
+ if (*(q + 1) == 'l') {
+ intsize = 'q';
+ q += 2;
+ break;
+ }
+#endif
+ /* FALL THROUGH */
+ case 'h':
+ case 'V':
+ intsize = *q++;
+ break;
+ }
+
+ /* CONVERSION */
+
+ switch (c = *q++) {
+
+ /* STRINGS */
+
+ case '%':
+ eptr = q - 1;
+ elen = 1;
+ goto string;
+
+ case 'c':
+ if (args)
+ c = va_arg(*args, int);
+ else
+ c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ eptr = &c;
+ elen = 1;
+ goto string;
+
+ case 's':
+ if (args) {
+ eptr = va_arg(*args, char*);
+ if (eptr)
+ elen = strlen(eptr);
+ else {
+ eptr = nullstr;
+ elen = sizeof nullstr - 1;
+ }
+ }
+ else if (svix < svmax)
+ eptr = SvPVx(svargs[svix++], elen);
+ goto string;
+
+ case '_':
+ /*
+ * The "%_" hack might have to be changed someday,
+ * if ISO or ANSI decide to use '_' for something.
+ * So we keep it hidden from users' code.
+ */
+ if (!args)
+ goto unknown;
+ eptr = SvPVx(va_arg(*args, SV*), elen);
+
+ string:
+ if (has_precis && elen > precis)
+ elen = precis;
+ break;
+
+ /* INTEGERS */
+
+ case 'p':
+ if (args)
+ uv = (UV)va_arg(*args, void*);
+ else
+ uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
+ base = 16;
+ goto integer;
+
+ case 'D':
+ intsize = 'l';
+ /* FALL THROUGH */
+ case 'd':
+ case 'i':
+ if (args) {
+ switch (intsize) {
+ case 'h': iv = (short)va_arg(*args, int); break;
+ default: iv = va_arg(*args, int); break;
+ case 'l': iv = va_arg(*args, long); break;
+ case 'V': iv = va_arg(*args, IV); break;
+ }
+ }
+ else {
+ iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ switch (intsize) {
+ case 'h': iv = (short)iv; break;
+ default: iv = (int)iv; break;
+ case 'l': iv = (long)iv; break;
+ case 'V': break;
+ }
+ }
+ if (iv >= 0) {
+ uv = iv;
+ if (plus)
+ esignbuf[esignlen++] = plus;
+ }
+ else {
+ uv = -iv;
+ esignbuf[esignlen++] = '-';
+ }
+ base = 10;
+ goto integer;
+
+ case 'U':
+ intsize = 'l';
+ /* FALL THROUGH */
+ case 'u':
+ base = 10;
+ goto uns_integer;
+
+ case 'O':
+ intsize = 'l';
+ /* FALL THROUGH */
+ case 'o':
+ base = 8;
+ goto uns_integer;
+
+ case 'X':
+ case 'x':
+ base = 16;
+
+ uns_integer:
+ if (args) {
+ switch (intsize) {
+ case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
+ default: uv = va_arg(*args, unsigned); break;
+ case 'l': uv = va_arg(*args, unsigned long); break;
+ case 'V': uv = va_arg(*args, UV); break;
+ }
+ }
+ else {
+ uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
+ switch (intsize) {
+ case 'h': uv = (unsigned short)uv; break;
+ default: uv = (unsigned)uv; break;
+ case 'l': uv = (unsigned long)uv; break;
+ case 'V': break;
+ }
+ }
+
+ integer:
+ eptr = ebuf + sizeof ebuf;
+ switch (base) {
+ unsigned dig;
+ case 16:
+ p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
+ do {
+ dig = uv & 15;
+ *--eptr = p[dig];
+ } while (uv >>= 4);
+ if (alt) {
+ esignbuf[esignlen++] = '0';
+ esignbuf[esignlen++] = c; /* 'x' or 'X' */
+ }
+ break;
+ case 8:
+ do {
+ dig = uv & 7;
+ *--eptr = '0' + dig;
+ } while (uv >>= 3);
+ if (alt && *eptr != '0')
+ *--eptr = '0';
+ break;
+ default: /* it had better be ten or less */
+ do {
+ dig = uv % base;
+ *--eptr = '0' + dig;
+ } while (uv /= base);
+ break;
+ }
+ elen = (ebuf + sizeof ebuf) - eptr;
+ if (has_precis && precis > elen)
+ zeros = precis - elen;
+ break;
+
+ /* FLOATING POINT */
+
+ case 'F':
+ c = 'f'; /* maybe %F isn't supported here */
+ /* FALL THROUGH */
+ case 'e': case 'E':
+ case 'f':
+ case 'g': case 'G':
+
+ /* This is evil, but floating point is even more evil */
+
+ if (args)
+ nv = va_arg(*args, double);
+ else
+ nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
+
+ need = 0;
+ if (c != 'e' && c != 'E') {
+ i = PERL_INT_MIN;
+ (void)frexp(nv, &i);
+ if (i == PERL_INT_MIN)
+ die("panic: frexp");
+ if (i > 0)
+ need = BIT_DIGITS(i);
+ }
+ need += has_precis ? precis : 6; /* known default */
+ if (need < width)
+ need = width;
+
+ need += 20; /* fudge factor */
+ if (efloatsize < need) {
+ Safefree(efloatbuf);
+ efloatsize = need + 20; /* more fudge */
+ New(906, efloatbuf, efloatsize, char);
+ }
+
+ eptr = ebuf + sizeof ebuf;
+ *--eptr = '\0';
+ *--eptr = c;
+ if (has_precis) {
+ base = precis;
+ do { *--eptr = '0' + (base % 10); } while (base /= 10);
+ *--eptr = '.';
+ }
+ if (width) {
+ base = width;
+ do { *--eptr = '0' + (base % 10); } while (base /= 10);
+ }
+ if (fill == '0')
+ *--eptr = fill;
+ if (plus)
+ *--eptr = plus;
+ if (alt)
+ *--eptr = '#';
+ *--eptr = '%';
+
+ (void)sprintf(efloatbuf, eptr, nv);
+
+ eptr = efloatbuf;
+ elen = strlen(efloatbuf);
+
+#ifdef LC_NUMERIC
+ /*
+ * User-defined locales may include arbitrary characters.
+ * And, unfortunately, some system may alloc the "C" locale
+ * to be overridden by a malicious user.
+ */
+ if (used_locale)
+ *used_locale = TRUE;
+#endif /* LC_NUMERIC */
+
+ break;
+
+ /* SPECIAL */
+
+ case 'n':
+ i = SvCUR(sv) - origlen;
+ if (args) {
+ switch (intsize) {
+ case 'h': *(va_arg(*args, short*)) = i; break;
+ default: *(va_arg(*args, int*)) = i; break;
+ case 'l': *(va_arg(*args, long*)) = i; break;
+ case 'V': *(va_arg(*args, IV*)) = i; break;
+ }
+ }
+ else if (svix < svmax)
+ sv_setuv(svargs[svix++], (UV)i);
+ continue; /* not "break" */
+
+ /* UNKNOWN */
+
+ default:
+ unknown:
+ if (!args && dowarn &&
+ (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
+ SV *msg = sv_newmortal();
+ sv_setpvf(msg, "Invalid conversion in %s: ",
+ (op->op_type == OP_PRTF) ? "printf" : "sprintf");
+ if (c)
+ sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
+ c & 0xFF);
+ else
+ sv_catpv(msg, "end of string");
+ warn("%_", msg); /* yes, this is reentrant */
+ }
+ /* output mangled stuff */
+ eptr = p;
+ elen = q - p;
+ break;
+ }
+
+ have = esignlen + zeros + elen;
+ need = (have > width ? have : width);
+ gap = need - have;
+
+ SvGROW(sv, SvLEN(sv) + need);
+ p = SvEND(sv);
+ if (esignlen && fill == '0') {
+ for (i = 0; i < esignlen; i++)
+ *p++ = esignbuf[i];
+ }
+ if (gap && !left) {
+ memset(p, fill, gap);
+ p += gap;
+ }
+ if (esignlen && fill != '0') {
+ for (i = 0; i < esignlen; i++)
+ *p++ = esignbuf[i];
+ }
+ if (zeros) {
+ for (i = zeros; i; i--)
+ *p++ = '0';
+ }
+ if (elen) {
+ memcpy(p, eptr, elen);
+ p += elen;
+ }
+ if (gap && left) {
+ memset(p, ' ', gap);
+ p += gap;
+ }
+ *p = '\0';
+ SvCUR(sv) = p - SvPVX(sv);
+ }
}
+
+#ifdef DEBUGGING
+void
+sv_dump(sv)
+SV* sv;
+{
+ SV *d = sv_newmortal();
+ char *s;
+ U32 flags;
+ U32 type;
+
+ if (!sv) {
+ PerlIO_printf(Perl_debug_log, "SV = 0\n");
+ return;
+ }
+
+ flags = SvFLAGS(sv);
+ type = SvTYPE(sv);
+
+ sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
+ (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
+ if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
+ if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
+ if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
+ if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
+ if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
+ if (flags & SVs_GMG) sv_catpv(d, "GMG,");
+ if (flags & SVs_SMG) sv_catpv(d, "SMG,");
+ if (flags & SVs_RMG) sv_catpv(d, "RMG,");
+
+ if (flags & SVf_IOK) sv_catpv(d, "IOK,");
+ if (flags & SVf_NOK) sv_catpv(d, "NOK,");
+ if (flags & SVf_POK) sv_catpv(d, "POK,");
+ if (flags & SVf_ROK) sv_catpv(d, "ROK,");
+ if (flags & SVf_OOK) sv_catpv(d, "OOK,");
+ if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
+ if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
+
+#ifdef OVERLOAD
+ if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
+#endif /* OVERLOAD */
+ if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
+ if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
+ if (flags & SVp_POK) sv_catpv(d, "pPOK,");
+ if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
+
+ switch (type) {
+ case SVt_PVCV:
+ case SVt_PVFM:
+ if (CvANON(sv)) sv_catpv(d, "ANON,");
+ if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
+ if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
+ if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
+ if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
+ break;
+ case SVt_PVHV:
+ if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
+ if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
+ break;
+ case SVt_PVGV:
+ if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
+ if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
+ if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
+ if (GvIMPORTED(sv)) {
+ sv_catpv(d, "IMPORT");
+ if (GvIMPORTED(sv) == GVf_IMPORTED)
+ sv_catpv(d, "ALL,");
+ else {
+ sv_catpv(d, "(");
+ if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
+ if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
+ if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
+ if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
+ sv_catpv(d, " ),");
+ }
+ }
+ }
+
+ if (*(SvEND(d) - 1) == ',')
+ SvPVX(d)[--SvCUR(d)] = '\0';
+ sv_catpv(d, ")");
+ s = SvPVX(d);
+
+ PerlIO_printf(Perl_debug_log, "SV = ");
+ switch (type) {
+ case SVt_NULL:
+ PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
+ return;
+ case SVt_IV:
+ PerlIO_printf(Perl_debug_log, "IV%s\n", s);
+ break;
+ case SVt_NV:
+ PerlIO_printf(Perl_debug_log, "NV%s\n", s);
+ break;
+ case SVt_RV:
+ PerlIO_printf(Perl_debug_log, "RV%s\n", s);
+ break;
+ case SVt_PV:
+ PerlIO_printf(Perl_debug_log, "PV%s\n", s);
+ break;
+ case SVt_PVIV:
+ PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
+ break;
+ case SVt_PVNV:
+ PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
+ break;
+ case SVt_PVBM:
+ PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
+ break;
+ case SVt_PVMG:
+ PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
+ break;
+ case SVt_PVLV:
+ PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
+ break;
+ case SVt_PVAV:
+ PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
+ break;
+ case SVt_PVHV:
+ PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
+ break;
+ case SVt_PVCV:
+ PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
+ break;
+ case SVt_PVGV:
+ PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
+ break;
+ case SVt_PVFM:
+ PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
+ break;
+ case SVt_PVIO:
+ PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
+ break;
+ default:
+ PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
+ return;
+ }
+ if (type >= SVt_PVIV || type == SVt_IV)
+ PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
+ if (type >= SVt_PVNV || type == SVt_NV) {
+ SET_NUMERIC_STANDARD();
+ PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
+ }
+ if (SvROK(sv)) {
+ PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
+ sv_dump(SvRV(sv));
+ return;
+ }
+ if (type < SVt_PV)
+ return;
+ if (type <= SVt_PVLV) {
+ if (SvPVX(sv))
+ PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
+ (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
+ else
+ PerlIO_printf(Perl_debug_log, " PV = 0\n");
+ }
+ if (type >= SVt_PVMG) {
+ if (SvMAGIC(sv)) {
+ PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
+ }
+ if (SvSTASH(sv))
+ PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
+ }
+ switch (type) {
+ case SVt_PVLV:
+ PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
+ PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
+ PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
+ PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
+ sv_dump(LvTARG(sv));
+ break;
+ case SVt_PVAV:
+ PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
+ PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
+ PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
+ PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
+ PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
+ flags = AvFLAGS(sv);
+ sv_setpv(d, "");
+ if (flags & AVf_REAL) sv_catpv(d, ",REAL");
+ if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
+ if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
+ PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
+ SvCUR(d) ? SvPVX(d) + 1 : "");
+ break;
+ case SVt_PVHV:
+ PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
+ PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
+ PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
+ PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
+ PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
+ PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
+ if (HvPMROOT(sv))
+ PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
+ if (HvNAME(sv))
+ PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
+ break;
+ case SVt_PVCV:
+ if (SvPOK(sv))
+ PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
+ /* FALL THROUGH */
+ case SVt_PVFM:
+ PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
+ PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
+ PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
+ PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
+ PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
+ PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
+ if (CvGV(sv) && GvNAME(CvGV(sv))) {
+ PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
+ } else {
+ PerlIO_printf(Perl_debug_log, "\n");
+ }
+ PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
+ PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
+ PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
+ PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
+ if (type == SVt_PVFM)
+ PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
+ break;
+ case SVt_PVGV:
+ PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
+ PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
+ PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
+ PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
+ PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
+ PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
+ PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
+ PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
+ PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
+ PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
+ PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
+ PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
+ PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
+ PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
+ PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
+ PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
+ break;
+ case SVt_PVIO:
+ PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
+ PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
+ PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
+ PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
+ PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
+ PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
+ PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
+ PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
+ PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
+ PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
+ PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
+ PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
+ PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
+ PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
+ PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
+ PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
+ break;
+ }
+}
+#else
+void
+sv_dump(sv)
+SV* sv;
+{
+}
+#endif
projects / p5sagit/p5-mst-13.2.git / blobdiff