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Diffstat (limited to 'contrib/perl5/sv.c')
| -rw-r--r-- | contrib/perl5/sv.c | 5148 |
1 files changed, 5148 insertions, 0 deletions
diff --git a/contrib/perl5/sv.c b/contrib/perl5/sv.c new file mode 100644 index 0000000..a53e769 --- /dev/null +++ b/contrib/perl5/sv.c @@ -0,0 +1,5148 @@ +/* sv.c + * + * Copyright (c) 1991-1997, Larry Wall + * + * You may distribute under the terms of either the GNU General Public + * License or the Artistic License, as specified in the README file. + * + */ + +/* + * "I wonder what the Entish is for 'yes' and 'no'," he thought. + */ + +#include "EXTERN.h" +#include "perl.h" + +#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 + +#ifdef PERL_OBJECT +#define FCALL this->*f +#define VTBL this->*vtbl + +#else /* !PERL_OBJECT */ + +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)); +static void sv_check_thinkfirst _((SV *sv)); + +#ifndef PURIFY +static void *my_safemalloc(MEM_SIZE size); +#endif + +typedef void (*SVFUNC) _((SV*)); +#define VTBL *vtbl +#define FCALL *f + +#endif /* PERL_OBJECT */ + +#define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv) + +#ifdef PURIFY + +#define new_SV(p) \ + do { \ + LOCK_SV_MUTEX; \ + (p) = (SV*)safemalloc(sizeof(SV)); \ + reg_add(p); \ + UNLOCK_SV_MUTEX; \ + } while (0) + +#define del_SV(p) \ + do { \ + LOCK_SV_MUTEX; \ + reg_remove(p); \ + Safefree((char*)(p)); \ + UNLOCK_SV_MUTEX; \ + } while (0) + +static SV **registry; +static I32 registry_size; + +#define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size)) + +#define REG_REPLACE(sv,a,b) \ + do { \ + void* p = sv->sv_any; \ + I32 h = REGHASH(sv, registry_size); \ + I32 i = h; \ + while (registry[i] != (a)) { \ + if (++i >= registry_size) \ + 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 void +reg_add(sv) +SV* sv; +{ + if (PL_sv_count >= (registry_size >> 1)) + { + SV **oldreg = registry; + I32 oldsize = registry_size; + + registry_size = registry_size ? ((registry_size << 2) + 1) : 2037; + Newz(707, registry, registry_size, 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); + ++PL_sv_count; +} + +static void +reg_remove(sv) +SV* sv; +{ + REG_REMOVE(sv); + --PL_sv_count; +} + +static void +visit(f) +SVFUNC f; +{ + I32 i; + + for (i = 0; i < registry_size; ++i) { + SV* sv = registry[i]; + if (sv && SvTYPE(sv) != SVTYPEMASK) + (*f)(sv); + } +} + +void +sv_add_arena(ptr, size, flags) +char* ptr; +U32 size; +U32 flags; +{ + if (!(flags & SVf_FAKE)) + Safefree(ptr); +} + +#else /* ! PURIFY */ + +/* + * "A time to plant, and a time to uproot what was planted..." + */ + +#define plant_SV(p) \ + do { \ + SvANY(p) = (void *)PL_sv_root; \ + SvFLAGS(p) = SVTYPEMASK; \ + PL_sv_root = (p); \ + --PL_sv_count; \ + } while (0) + +/* sv_mutex must be held while calling uproot_SV() */ +#define uproot_SV(p) \ + do { \ + (p) = PL_sv_root; \ + PL_sv_root = (SV*)SvANY(p); \ + ++PL_sv_count; \ + } while (0) + +#define new_SV(p) do { \ + LOCK_SV_MUTEX; \ + if (PL_sv_root) \ + uproot_SV(p); \ + else \ + (p) = more_sv(); \ + UNLOCK_SV_MUTEX; \ + } while (0) + +#ifdef DEBUGGING + +#define del_SV(p) do { \ + LOCK_SV_MUTEX; \ + if (PL_debug & 32768) \ + del_sv(p); \ + else \ + plant_SV(p); \ + UNLOCK_SV_MUTEX; \ + } while (0) + +STATIC void +del_sv(SV *p) +{ + if (PL_debug & 32768) { + SV* sva; + SV* sv; + SV* svend; + int ok = 0; + for (sva = PL_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); +} + +#else /* ! DEBUGGING */ + +#define del_SV(p) plant_SV(p) + +#endif /* DEBUGGING */ + +void +sv_add_arena(char *ptr, U32 size, U32 flags) +{ + SV* sva = (SV*)ptr; + register SV* sv; + register SV* svend; + Zero(sva, size, char); + + /* The first SV in an arena isn't an SV. */ + SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ + SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ + SvFLAGS(sva) = flags; /* FAKE if not to be freed */ + + PL_sv_arenaroot = sva; + PL_sv_root = sva + 1; + + svend = &sva[SvREFCNT(sva) - 1]; + sv = sva + 1; + while (sv < svend) { + SvANY(sv) = (void *)(SV*)(sv + 1); + SvFLAGS(sv) = SVTYPEMASK; + sv++; + } + SvANY(sv) = 0; + SvFLAGS(sv) = SVTYPEMASK; +} + +/* sv_mutex must be held while calling more_sv() */ +STATIC SV* +more_sv(void) +{ + register SV* sv; + + if (PL_nice_chunk) { + sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); + PL_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(SVFUNC f) +{ + SV* sva; + SV* sv; + register SV* svend; + + for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { + svend = &sva[SvREFCNT(sva)]; + for (sv = sva + 1; sv < svend; ++sv) { + if (SvTYPE(sv) != SVTYPEMASK) + (FCALL)(sv); + } + } +} + +#endif /* PURIFY */ + +STATIC void +do_report_used(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(void) +{ + visit(FUNC_NAME_TO_PTR(do_report_used)); +} + +STATIC void +do_clean_objs(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) +{ + if (SvTYPE(sv) == SVt_PVGV) { + if ( SvOBJECT(GvSV(sv)) || + GvAV(sv) && SvOBJECT(GvAV(sv)) || + GvHV(sv) && SvOBJECT(GvHV(sv)) || + GvIO(sv) && SvOBJECT(GvIO(sv)) || + GvCV(sv) && SvOBJECT(GvCV(sv)) ) + { + DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));) + SvREFCNT_dec(sv); + } + } +} +#endif + +void +sv_clean_objs(void) +{ + PL_in_clean_objs = TRUE; + visit(FUNC_NAME_TO_PTR(do_clean_objs)); +#ifndef DISABLE_DESTRUCTOR_KLUDGE + /* some barnacles may yet remain, clinging to typeglobs */ + visit(FUNC_NAME_TO_PTR(do_clean_named_objs)); +#endif + PL_in_clean_objs = FALSE; +} + +STATIC void +do_clean_all(SV *sv) +{ + DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );) + SvFLAGS(sv) |= SVf_BREAK; + SvREFCNT_dec(sv); +} + +void +sv_clean_all(void) +{ + PL_in_clean_all = TRUE; + visit(FUNC_NAME_TO_PTR(do_clean_all)); + PL_in_clean_all = FALSE; +} + +void +sv_free_arenas(void) +{ + 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 = PL_sv_arenaroot; sva; sva = svanext) { + svanext = (SV*) SvANY(sva); + while (svanext && SvFAKE(svanext)) + svanext = (SV*) SvANY(svanext); + + if (!SvFAKE(sva)) + Safefree((void *)sva); + } + + if (PL_nice_chunk) + Safefree(PL_nice_chunk); + PL_nice_chunk = Nullch; + PL_nice_chunk_size = 0; + PL_sv_arenaroot = 0; + PL_sv_root = 0; +} + +STATIC XPVIV* +new_xiv(void) +{ + IV* xiv; + if (PL_xiv_root) { + xiv = PL_xiv_root; + /* + * See comment in more_xiv() -- RAM. + */ + PL_xiv_root = *(IV**)xiv; + return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); + } + return more_xiv(); +} + +STATIC void +del_xiv(XPVIV *p) +{ + IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); + *(IV**)xiv = PL_xiv_root; + PL_xiv_root = xiv; +} + +STATIC XPVIV* +more_xiv(void) +{ + register IV* xiv; + register IV* xivend; + XPV* ptr; + New(705, ptr, 1008/sizeof(XPV), XPV); + ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ + PL_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 */ + PL_xiv_root = xiv; + while (xiv < xivend) { + *(IV**)xiv = (IV *)(xiv + 1); + xiv++; + } + *(IV**)xiv = 0; + return new_xiv(); +} + +STATIC XPVNV* +new_xnv(void) +{ + double* xnv; + if (PL_xnv_root) { + xnv = PL_xnv_root; + PL_xnv_root = *(double**)xnv; + return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); + } + return more_xnv(); +} + +STATIC void +del_xnv(XPVNV *p) +{ + double* xnv = (double*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); + *(double**)xnv = PL_xnv_root; + PL_xnv_root = xnv; +} + +STATIC XPVNV* +more_xnv(void) +{ + register double* xnv; + register double* xnvend; + New(711, xnv, 1008/sizeof(double), double); + xnvend = &xnv[1008 / sizeof(double) - 1]; + xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ + PL_xnv_root = xnv; + while (xnv < xnvend) { + *(double**)xnv = (double*)(xnv + 1); + xnv++; + } + *(double**)xnv = 0; + return new_xnv(); +} + +STATIC XRV* +new_xrv(void) +{ + XRV* xrv; + if (PL_xrv_root) { + xrv = PL_xrv_root; + PL_xrv_root = (XRV*)xrv->xrv_rv; + return xrv; + } + return more_xrv(); +} + +STATIC void +del_xrv(XRV *p) +{ + p->xrv_rv = (SV*)PL_xrv_root; + PL_xrv_root = p; +} + +STATIC XRV* +more_xrv(void) +{ + register XRV* xrv; + register XRV* xrvend; + New(712, PL_xrv_root, 1008/sizeof(XRV), XRV); + xrv = PL_xrv_root; + xrvend = &xrv[1008 / sizeof(XRV) - 1]; + while (xrv < xrvend) { + xrv->xrv_rv = (SV*)(xrv + 1); + xrv++; + } + xrv->xrv_rv = 0; + return new_xrv(); +} + +STATIC XPV* +new_xpv(void) +{ + XPV* xpv; + if (PL_xpv_root) { + xpv = PL_xpv_root; + PL_xpv_root = (XPV*)xpv->xpv_pv; + return xpv; + } + return more_xpv(); +} + +STATIC void +del_xpv(XPV *p) +{ + p->xpv_pv = (char*)PL_xpv_root; + PL_xpv_root = p; +} + +STATIC XPV* +more_xpv(void) +{ + register XPV* xpv; + register XPV* xpvend; + New(713, PL_xpv_root, 1008/sizeof(XPV), XPV); + xpv = PL_xpv_root; + xpvend = &xpv[1008 / sizeof(XPV) - 1]; + while (xpv < xpvend) { + xpv->xpv_pv = (char*)(xpv + 1); + xpv++; + } + xpv->xpv_pv = 0; + return new_xpv(); +} + +#ifdef PURIFY +#define new_XIV() (void*)safemalloc(sizeof(XPVIV)) +#define del_XIV(p) Safefree((char*)p) +#else +#define new_XIV() (void*)new_xiv() +#define del_XIV(p) del_xiv((XPVIV*) p) +#endif + +#ifdef PURIFY +#define new_XNV() (void*)safemalloc(sizeof(XPVNV)) +#define del_XNV(p) Safefree((char*)p) +#else +#define new_XNV() (void*)new_xnv() +#define del_XNV(p) del_xnv((XPVNV*) p) +#endif + +#ifdef PURIFY +#define new_XRV() (void*)safemalloc(sizeof(XRV)) +#define del_XRV(p) Safefree((char*)p) +#else +#define new_XRV() (void*)new_xrv() +#define del_XRV(p) del_xrv((XRV*) p) +#endif + +#ifdef PURIFY +#define new_XPV() (void*)safemalloc(sizeof(XPV)) +#define del_XPV(p) Safefree((char*)p) +#else +#define new_XPV() (void*)new_xpv() +#define del_XPV(p) del_xpv((XPV *)p) +#endif + +#ifdef PURIFY +# define my_safemalloc(s) safemalloc(s) +# define my_safefree(s) free(s) +#else +STATIC void* +my_safemalloc(MEM_SIZE size) +{ + char *p; + New(717, p, size, char); + return (void*)p; +} +# define my_safefree(s) Safefree(s) +#endif + +#define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV)) +#define del_XPVIV(p) my_safefree((char*)p) + +#define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV)) +#define del_XPVNV(p) my_safefree((char*)p) + +#define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG)) +#define del_XPVMG(p) my_safefree((char*)p) + +#define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV)) +#define del_XPVLV(p) my_safefree((char*)p) + +#define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV)) +#define del_XPVAV(p) my_safefree((char*)p) + +#define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV)) +#define del_XPVHV(p) my_safefree((char*)p) + +#define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV)) +#define del_XPVCV(p) my_safefree((char*)p) + +#define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV)) +#define del_XPVGV(p) my_safefree((char*)p) + +#define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM)) +#define del_XPVBM(p) my_safefree((char*)p) + +#define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM)) +#define del_XPVFM(p) my_safefree((char*)p) + +#define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO)) +#define del_XPVIO(p) my_safefree((char*)p) + +bool +sv_upgrade(register SV *sv, U32 mt) +{ + char* pv; + U32 cur; + U32 len; + 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; + cur = 0; + len = 0; + iv = 0; + nv = 0.0; + magic = 0; + stash = 0; + break; + case SVt_IV: + pv = 0; + cur = 0; + len = 0; + iv = SvIVX(sv); + nv = (double)SvIVX(sv); + del_XIV(SvANY(sv)); + magic = 0; + stash = 0; + if (mt == SVt_NV) + mt = SVt_PVNV; + else if (mt < SVt_PVIV) + mt = SVt_PVIV; + break; + case SVt_NV: + pv = 0; + cur = 0; + len = 0; + nv = SvNVX(sv); + iv = I_32(nv); + magic = 0; + stash = 0; + del_XNV(SvANY(sv)); + SvANY(sv) = 0; + if (mt < SVt_PVNV) + mt = SVt_PVNV; + break; + case SVt_RV: + pv = (char*)SvRV(sv); + cur = 0; + len = 0; + iv = (IV)pv; + nv = (double)(unsigned long)pv; + del_XRV(SvANY(sv)); + magic = 0; + stash = 0; + break; + case SVt_PV: + pv = SvPVX(sv); + cur = SvCUR(sv); + len = SvLEN(sv); + iv = 0; + nv = 0.0; + magic = 0; + stash = 0; + del_XPV(SvANY(sv)); + if (mt <= SVt_IV) + mt = SVt_PVIV; + else if (mt == SVt_NV) + mt = SVt_PVNV; + break; + case SVt_PVIV: + pv = SvPVX(sv); + cur = SvCUR(sv); + len = SvLEN(sv); + iv = SvIVX(sv); + nv = 0.0; + magic = 0; + stash = 0; + del_XPVIV(SvANY(sv)); + break; + case SVt_PVNV: + pv = SvPVX(sv); + cur = SvCUR(sv); + len = SvLEN(sv); + iv = SvIVX(sv); + nv = SvNVX(sv); + magic = 0; + stash = 0; + del_XPVNV(SvANY(sv)); + break; + case SVt_PVMG: + pv = SvPVX(sv); + cur = SvCUR(sv); + len = SvLEN(sv); + iv = SvIVX(sv); + nv = SvNVX(sv); + magic = SvMAGIC(sv); + stash = SvSTASH(sv); + del_XPVMG(SvANY(sv)); + break; + default: + croak("Can't upgrade that kind of scalar"); + } + + switch (mt) { + case SVt_NULL: + croak("Can't upgrade to undef"); + case SVt_IV: + SvANY(sv) = new_XIV(); + SvIVX(sv) = iv; + break; + case SVt_NV: + SvANY(sv) = new_XNV(); + SvNVX(sv) = nv; + break; + case SVt_RV: + SvANY(sv) = new_XRV(); + SvRV(sv) = (SV*)pv; + break; + case SVt_PV: + SvANY(sv) = new_XPV(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + break; + case SVt_PVIV: + SvANY(sv) = new_XPVIV(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + if (SvNIOK(sv)) + (void)SvIOK_on(sv); + SvNOK_off(sv); + break; + case SVt_PVNV: + SvANY(sv) = new_XPVNV(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + break; + case SVt_PVMG: + SvANY(sv) = new_XPVMG(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + break; + case SVt_PVLV: + SvANY(sv) = new_XPVLV(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + LvTARGOFF(sv) = 0; + LvTARGLEN(sv) = 0; + LvTARG(sv) = 0; + LvTYPE(sv) = 0; + break; + case SVt_PVAV: + SvANY(sv) = new_XPVAV(); + if (pv) + Safefree(pv); + SvPVX(sv) = 0; + AvMAX(sv) = -1; + AvFILLp(sv) = -1; + SvIVX(sv) = 0; + SvNVX(sv) = 0.0; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + AvALLOC(sv) = 0; + AvARYLEN(sv) = 0; + AvFLAGS(sv) = 0; + break; + case SVt_PVHV: + SvANY(sv) = new_XPVHV(); + if (pv) + Safefree(pv); + SvPVX(sv) = 0; + HvFILL(sv) = 0; + HvMAX(sv) = 0; + HvKEYS(sv) = 0; + SvNVX(sv) = 0.0; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + HvRITER(sv) = 0; + HvEITER(sv) = 0; + HvPMROOT(sv) = 0; + HvNAME(sv) = 0; + break; + case SVt_PVCV: + SvANY(sv) = new_XPVCV(); + Zero(SvANY(sv), 1, XPVCV); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + break; + case SVt_PVGV: + SvANY(sv) = new_XPVGV(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + GvGP(sv) = 0; + GvNAME(sv) = 0; + GvNAMELEN(sv) = 0; + GvSTASH(sv) = 0; + GvFLAGS(sv) = 0; + break; + case SVt_PVBM: + SvANY(sv) = new_XPVBM(); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + BmRARE(sv) = 0; + BmUSEFUL(sv) = 0; + BmPREVIOUS(sv) = 0; + 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; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + IoPAGE_LEN(sv) = 60; + break; + } + SvFLAGS(sv) &= ~SVTYPEMASK; + SvFLAGS(sv) |= mt; + return TRUE; +} + +char * +sv_peek(SV *sv) +{ +#ifdef DEBUGGING + SV *t = sv_newmortal(); + STRLEN prevlen; + int unref = 0; + + sv_setpvn(t, "", 0); + retry: + if (!sv) { + sv_catpv(t, "VOID"); + goto finish; + } + else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') { + sv_catpv(t, "WILD"); + goto finish; + } + else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes) { + if (sv == &PL_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 == &PL_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 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; + } + switch (SvTYPE(sv)) { + default: + sv_catpv(t, "FREED"); + goto finish; + + case SVt_NULL: + sv_catpv(t, "UNDEF"); + goto finish; + 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)) + sv_catpv(t, "(null)"); + if (SvOOK(sv)) + sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); + else + sv_catpvf(t, "(\"%.127s\")",SvPVX(sv)); + } + else if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + sv_catpvf(t, "(%g)",SvNVX(sv)); + } + else if (SvIOKp(sv)) + sv_catpvf(t, "(%ld)",(long)SvIVX(sv)); + else + sv_catpv(t, "()"); + + finish: + if (unref) { + while (unref--) + sv_catpv(t, ")"); + } + return SvPV(t, PL_na); +#else /* DEBUGGING */ + return ""; +#endif /* DEBUGGING */ +} + +int +sv_backoff(register SV *sv) +{ + assert(SvOOK(sv)); + if (SvIVX(sv)) { + char *s = SvPVX(sv); + SvLEN(sv) += SvIVX(sv); + SvPVX(sv) -= SvIVX(sv); + SvIV_set(sv, 0); + Move(s, SvPVX(sv), SvCUR(sv)+1, char); + } + SvFLAGS(sv) &= ~SVf_OOK; + return 0; +} + +char * +#ifndef DOSISH +sv_grow(register SV *sv, register I32 newlen) +#else +sv_grow(SV* sv, unsigned long newlen) +#endif +{ + register char *s; + +#ifdef HAS_64K_LIMIT + if (newlen >= 0x10000) { + PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen); + my_exit(1); + } +#endif /* HAS_64K_LIMIT */ + if (SvROK(sv)) + sv_unref(sv); + if (SvTYPE(sv) < SVt_PV) { + sv_upgrade(sv, SVt_PV); + s = SvPVX(sv); + } + else if (SvOOK(sv)) { /* pv is offset? */ + sv_backoff(sv); + s = SvPVX(sv); + if (newlen > SvLEN(sv)) + newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ +#ifdef HAS_64K_LIMIT + if (newlen >= 0x10000) + newlen = 0xFFFF; +#endif + } + else + s = SvPVX(sv); + if (newlen > SvLEN(sv)) { /* need more room? */ + if (SvLEN(sv) && s) { +#if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST) + STRLEN l = malloced_size((void*)SvPVX(sv)); + if (newlen <= l) { + SvLEN_set(sv, l); + return s; + } else +#endif + Renew(s,newlen,char); + } + else + New(703,s,newlen,char); + SvPV_set(sv, s); + SvLEN_set(sv, newlen); + } + return s; +} + +void +sv_setiv(register SV *sv, IV i) +{ + SV_CHECK_THINKFIRST(sv); + switch (SvTYPE(sv)) { + case SVt_NULL: + sv_upgrade(sv, SVt_IV); + break; + case SVt_NV: + sv_upgrade(sv, SVt_PVNV); + break; + case SVt_RV: + case SVt_PV: + sv_upgrade(sv, SVt_PVIV); + break; + + case SVt_PVGV: + if (SvFAKE(sv)) { + sv_unglob(sv); + break; + } + /* FALL THROUGH */ + case SVt_PVAV: + case SVt_PVHV: + case SVt_PVCV: + case SVt_PVFM: + case SVt_PVIO: + { + dTHR; + croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), + op_desc[PL_op->op_type]); + } + } + (void)SvIOK_only(sv); /* validate number */ + SvIVX(sv) = i; + SvTAINT(sv); +} + +void +sv_setiv_mg(register SV *sv, IV i) +{ + sv_setiv(sv,i); + SvSETMAGIC(sv); +} + +void +sv_setuv(register SV *sv, UV u) +{ + if (u <= IV_MAX) + sv_setiv(sv, u); + else + sv_setnv(sv, (double)u); +} + +void +sv_setuv_mg(register SV *sv, UV u) +{ + sv_setuv(sv,u); + SvSETMAGIC(sv); +} + +void +sv_setnv(register SV *sv, double num) +{ + SV_CHECK_THINKFIRST(sv); + switch (SvTYPE(sv)) { + case SVt_NULL: + case SVt_IV: + sv_upgrade(sv, SVt_NV); + break; + case SVt_RV: + case SVt_PV: + case SVt_PVIV: + sv_upgrade(sv, SVt_PVNV); + 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: + { + dTHR; + croak("Can't coerce %s to number in %s", sv_reftype(sv,0), + op_name[PL_op->op_type]); + } + } + SvNVX(sv) = num; + (void)SvNOK_only(sv); /* validate number */ + SvTAINT(sv); +} + +void +sv_setnv_mg(register SV *sv, double num) +{ + sv_setnv(sv,num); + SvSETMAGIC(sv); +} + +STATIC void +not_a_number(SV *sv) +{ + dTHR; + 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 (PL_op) + warn("Argument \"%s\" isn't numeric in %s", tmpbuf, + op_name[PL_op->op_type]); + else + warn("Argument \"%s\" isn't numeric", tmpbuf); +} + +IV +sv_2iv(register SV *sv) +{ + if (!sv) + return 0; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvIOKp(sv)) + return SvIVX(sv); + if (SvNOKp(sv)) { + if (SvNVX(sv) < 0.0) + return I_V(SvNVX(sv)); + else + return (IV) U_V(SvNVX(sv)); + } + if (SvPOKp(sv) && SvLEN(sv)) + return asIV(sv); + if (!SvROK(sv)) { + if (PL_dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) { + dTHR; + if (!PL_localizing) + warn(warn_uninit); + } + return 0; + } + } + if (SvTHINKFIRST(sv)) { + if (SvROK(sv)) { +#ifdef OVERLOAD + SV* tmpstr; + if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) + return SvIV(tmpstr); +#endif /* OVERLOAD */ + return (IV)SvRV(sv); + } + if (SvREADONLY(sv)) { + if (SvNOKp(sv)) { + if (SvNVX(sv) < 0.0) + return I_V(SvNVX(sv)); + else + return (IV) U_V(SvNVX(sv)); + } + if (SvPOKp(sv) && SvLEN(sv)) + return asIV(sv); + if (PL_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); + 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 { + dTHR; + if (PL_dowarn && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0; + } + DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n", + (unsigned long)sv,(long)SvIVX(sv))); + return SvIVX(sv); +} + +UV +sv_2uv(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 (PL_dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) { + dTHR; + if (!PL_localizing) + 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 (PL_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 (PL_dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) { + dTHR; + if (!PL_localizing) + 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(register SV *sv) +{ + if (!sv) + return 0.0; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvNOKp(sv)) + return SvNVX(sv); + if (SvPOKp(sv) && SvLEN(sv)) { + if (PL_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 (!SvROK(sv)) { + if (PL_dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) { + dTHR; + if (!PL_localizing) + warn(warn_uninit); + } + return 0; + } + } + if (SvTHINKFIRST(sv)) { + if (SvROK(sv)) { +#ifdef OVERLOAD + SV* tmpstr; + if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) + return SvNV(tmpstr); +#endif /* OVERLOAD */ + return (double)(unsigned long)SvRV(sv); + } + if (SvREADONLY(sv)) { + if (SvPOKp(sv) && SvLEN(sv)) { + if (PL_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 (PL_dowarn) + warn(warn_uninit); + return 0.0; + } + } + if (SvTYPE(sv) < SVt_NV) { + if (SvTYPE(sv) == SVt_IV) + sv_upgrade(sv, SVt_PVNV); + else + sv_upgrade(sv, SVt_NV); + 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 (SvIOKp(sv) && + (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) + { + SvNVX(sv) = (double)SvIVX(sv); + } + else if (SvPOKp(sv) && SvLEN(sv)) { + if (PL_dowarn && !SvIOKp(sv) && !looks_like_number(sv)) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + SvNVX(sv) = atof(SvPVX(sv)); + } + else { + dTHR; + if (PL_dowarn && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0.0; + } + SvNOK_on(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) +{ + I32 numtype = looks_like_number(sv); + double d; + + if (numtype == 1) + return atol(SvPVX(sv)); + if (!numtype && PL_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) +{ + I32 numtype = looks_like_number(sv); + +#ifdef HAS_STRTOUL + if (numtype == 1) + return strtoul(SvPVX(sv), Null(char**), 10); +#endif + if (!numtype && PL_dowarn) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + return U_V(atof(SvPVX(sv))); +} + +I32 +looks_like_number(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(register SV *sv, STRLEN *lp) +{ + register char *s; + int olderrno; + SV *tsv; + char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ + + if (!sv) { + *lp = 0; + return ""; + } + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvPOKp(sv)) { + *lp = SvCUR(sv); + return SvPVX(sv); + } + if (SvIOKp(sv)) { + (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv)); + tsv = Nullsv; + goto tokensave; + } + if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); + tsv = Nullsv; + goto tokensave; + } + if (!SvROK(sv)) { + if (PL_dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) { + dTHR; + if (!PL_localizing) + 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"; + else { + MAGIC *mg; + + switch (SvTYPE(sv)) { + case SVt_PVMG: + if ( ((SvFLAGS(sv) & + (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) + == (SVs_OBJECT|SVs_RMG)) + && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") + && (mg = mg_find(sv, 'r'))) { + dTHR; + regexp *re = (regexp *)mg->mg_obj; + + if (!mg->mg_ptr) { + char *fptr = "msix"; + char reflags[6]; + char ch; + int left = 0; + int right = 4; + U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; + + while(ch = *fptr++) { + if(reganch & 1) { + reflags[left++] = ch; + } + else { + reflags[right--] = ch; + } + reganch >>= 1; + } + if(left != 4) { + reflags[left] = '-'; + left = 5; + } + + mg->mg_len = re->prelen + 4 + left; + New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); + Copy("(?", mg->mg_ptr, 2, char); + Copy(reflags, mg->mg_ptr+2, left, char); + Copy(":", mg->mg_ptr+left+2, 1, char); + Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); + mg->mg_ptr[mg->mg_len - 1] = ')'; + mg->mg_ptr[mg->mg_len] = 0; + } + PL_reginterp_cnt += re->program[0].next_off; + *lp = mg->mg_len; + return mg->mg_ptr; + } + /* Fall through */ + case SVt_NULL: + case SVt_IV: + case SVt_NV: + case SVt_RV: + case SVt_PV: + case SVt_PVIV: + case SVt_PVNV: + case SVt_PVBM: s = "SCALAR"; break; + case SVt_PVLV: s = "LVALUE"; break; + case SVt_PVAV: s = "ARRAY"; break; + case SVt_PVHV: s = "HASH"; break; + case SVt_PVCV: s = "CODE"; break; + case SVt_PVGV: s = "GLOB"; break; + case SVt_PVFM: s = "FORMAT"; break; + case SVt_PVIO: s = "IO"; break; + default: s = "UNKNOWN"; break; + } + tsv = NEWSV(0,0); + if (SvOBJECT(sv)) + sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); + else + sv_setpv(tsv, s); + sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv); + goto tokensaveref; + } + *lp = strlen(s); + return s; + } + if (SvREADONLY(sv)) { + if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); + tsv = Nullsv; + goto tokensave; + } + if (SvIOKp(sv)) { + (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv)); + tsv = Nullsv; + goto tokensave; + } + if (PL_dowarn) + warn(warn_uninit); + *lp = 0; + return ""; + } + } + (void)SvUPGRADE(sv, SVt_PV); + 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 */ +#ifdef apollo + if (SvNVX(sv) == 0.0) + (void)strcpy(s,"0"); + else +#endif /*apollo*/ + { + 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 = '\0'; +#endif + } + else if (SvIOKp(sv)) { + U32 oldIOK = SvIOK(sv); + if (SvTYPE(sv) < SVt_PVIV) + sv_upgrade(sv, SVt_PVIV); + olderrno = errno; /* some Xenix systems wipe out errno here */ + sv_setpviv(sv, SvIVX(sv)); + errno = olderrno; + s = SvEND(sv); + if (oldIOK) + SvIOK_on(sv); + else + SvIOKp_on(sv); + } + else { + dTHR; + if (PL_dowarn && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + *lp = 0; + return ""; + } + *lp = s - SvPVX(sv); + SvCUR_set(sv, *lp); + SvPOK_on(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(tmpbuf, 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 = tmpbuf; + len = strlen(tmpbuf); + } +#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 */ +bool +sv_2bool(register SV *sv) +{ + if (SvGMAGICAL(sv)) + mg_get(sv); + + if (!SvOK(sv)) + return 0; + if (SvROK(sv)) { +#ifdef OVERLOAD + { + dTHR; + SV* tmpsv; + if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) + return SvTRUE(tmpsv); + } +#endif /* OVERLOAD */ + return SvRV(sv) != 0; + } + if (SvPOKp(sv)) { + register XPV* Xpvtmp; + if ((Xpvtmp = (XPV*)SvANY(sv)) && + (*Xpvtmp->xpv_pv > '0' || + Xpvtmp->xpv_cur > 1 || + (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) + return 1; + else + return 0; + } + else { + if (SvIOKp(sv)) + return SvIVX(sv) != 0; + else { + if (SvNOKp(sv)) + return SvNVX(sv) != 0.0; + else + return FALSE; + } + } +} + +/* Note: sv_setsv() should not be called with a source string that needs + * to be reused, since it may destroy the source string if it is marked + * as temporary. + */ + +void +sv_setsv(SV *dstr, register SV *sstr) +{ + dTHR; + register U32 sflags; + register int dtype; + register int stype; + + if (sstr == dstr) + return; + SV_CHECK_THINKFIRST(dstr); + if (!sstr) + sstr = &PL_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 (stype) { + case SVt_NULL: + undef_sstr: + if (dtype != SVt_PVGV) { + (void)SvOK_off(dstr); + return; + } + break; + case SVt_IV: + if (SvIOK(sstr)) { + switch (dtype) { + case SVt_NULL: + sv_upgrade(dstr, SVt_IV); + break; + case SVt_NV: + sv_upgrade(dstr, SVt_PVNV); + break; + case SVt_RV: + case SVt_PV: + sv_upgrade(dstr, SVt_PVIV); + break; + } + (void)SvIOK_only(dstr); + SvIVX(dstr) = SvIVX(sstr); + SvTAINT(dstr); + return; + } + goto undef_sstr; + + case SVt_NV: + if (SvNOK(sstr)) { + switch (dtype) { + case SVt_NULL: + case SVt_IV: + sv_upgrade(dstr, SVt_NV); + break; + case SVt_RV: + case SVt_PV: + case SVt_PVIV: + sv_upgrade(dstr, SVt_PVNV); + break; + } + SvNVX(dstr) = SvNVX(sstr); + (void)SvNOK_only(dstr); + SvTAINT(dstr); + return; + } + goto undef_sstr; + + case SVt_RV: + if (dtype < SVt_RV) + sv_upgrade(dstr, SVt_RV); + else if (dtype == SVt_PVGV && + SvTYPE(SvRV(sstr)) == SVt_PVGV) { + sstr = SvRV(sstr); + if (sstr == dstr) { + if (PL_curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_on(dstr); + GvMULTI_on(dstr); + return; + } + goto glob_assign; + } + break; + case SVt_PV: + case SVt_PVFM: + if (dtype < SVt_PV) + sv_upgrade(dstr, SVt_PV); + break; + case SVt_PVIV: + if (dtype < SVt_PVIV) + sv_upgrade(dstr, SVt_PVIV); + break; + case SVt_PVNV: + if (dtype < SVt_PVNV) + sv_upgrade(dstr, SVt_PVNV); + break; + case SVt_PVAV: + case SVt_PVHV: + case SVt_PVCV: + case SVt_PVIO: + if (PL_op) + croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), + op_name[PL_op->op_type]); + else + croak("Bizarre copy of %s", sv_reftype(sstr, 0)); + break; + + case 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); + sv_magic(dstr, dstr, '*', name, len); + GvSTASH(dstr) = (HV*)SvREFCNT_inc(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 (PL_curstackinfo->si_type == PERLSI_SORT + && GvCV(dstr) && PL_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(dstr); + if (PL_curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_on(dstr); + GvMULTI_on(dstr); + return; + } + /* FALL THROUGH */ + + default: + if (SvGMAGICAL(sstr)) { + mg_get(sstr); + if (SvTYPE(sstr) != stype) { + stype = SvTYPE(sstr); + if (stype == SVt_PVGV && dtype <= SVt_PVGV) + goto glob_assign; + } + } + if (stype == SVt_PVLV) + SvUPGRADE(dstr, SVt_PVNV); + else + SvUPGRADE(dstr, stype); + } + + 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) = PL_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 (PL_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 (PL_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. */ + PL_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))) + { + SV *const_sv = cv_const_sv(cv); + bool const_changed = TRUE; + if(const_sv) + const_changed = sv_cmp(const_sv, + op_const_sv(CvSTART((CV*)sref), + Nullcv)); + /* ahem, death to those who redefine + * active sort subs */ + if (PL_curstackinfo->si_type == PERLSI_SORT && + PL_sortcop == CvSTART(cv)) + croak( + "Can't redefine active sort subroutine %s", + GvENAME((GV*)dstr)); + if (PL_dowarn || (const_changed && const_sv)) { + if (!(CvGV(cv) && GvSTASH(CvGV(cv)) + && HvNAME(GvSTASH(CvGV(cv))) + && strEQ(HvNAME(GvSTASH(CvGV(cv))), + "autouse"))) + warn(const_sv ? + "Constant subroutine %s redefined" + : "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); + PL_sub_generation++; + } + if (PL_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 (PL_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 (sflags & SVp_NOK) { + SvNOK_on(dstr); + SvNVX(dstr) = SvNVX(sstr); + } + if (sflags & SVp_IOK) { + (void)SvIOK_on(dstr); + SvIVX(dstr) = SvIVX(sstr); + } +#ifdef OVERLOAD + if (SvAMAGIC(sstr)) { + SvAMAGIC_on(dstr); + } +#endif /* OVERLOAD */ + } + else if (sflags & SVp_POK) { + + /* + * Check to see if we can just swipe the string. If so, it's a + * possible small lose on short strings, but a big win on long ones. + * It might even be a win on short strings if SvPVX(dstr) + * has to be allocated and SvPVX(sstr) has to be freed. + */ + + if (SvTEMP(sstr) && /* slated for free anyway? */ + SvREFCNT(sstr) == 1 && /* and no other references to it? */ + !(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)); + SvTEMP_off(dstr); + (void)SvOK_off(sstr); + SvPV_set(sstr, Nullch); + SvLEN_set(sstr, 0); + SvCUR_set(sstr, 0); + SvTEMP_off(sstr); + } + else { /* have to copy actual string */ + 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 (sflags & SVp_NOK) { + SvNOK_on(dstr); + SvNVX(dstr) = SvNVX(sstr); + } + if (sflags & SVp_IOK) { + (void)SvIOK_on(dstr); + SvIVX(dstr) = SvIVX(sstr); + } + } + else if (sflags & SVp_NOK) { + SvNVX(dstr) = SvNVX(sstr); + (void)SvNOK_only(dstr); + if (SvIOK(sstr)) { + (void)SvIOK_on(dstr); + SvIVX(dstr) = SvIVX(sstr); + } + } + else if (sflags & SVp_IOK) { + (void)SvIOK_only(dstr); + SvIVX(dstr) = SvIVX(sstr); + } + else { + if (dtype == SVt_PVGV) { + if (PL_dowarn) + warn("Undefined value assigned to typeglob"); + } + else + (void)SvOK_off(dstr); + } + SvTAINT(dstr); +} + +void +sv_setsv_mg(SV *dstr, register SV *sstr) +{ + sv_setsv(dstr,sstr); + SvSETMAGIC(dstr); +} + +void +sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len) +{ + register char *dptr; + assert(len >= 0); /* STRLEN is probably unsigned, so this may + elicit a warning, but it won't hurt. */ + SV_CHECK_THINKFIRST(sv); + if (!ptr) { + (void)SvOK_off(sv); + return; + } + if (SvTYPE(sv) >= SVt_PV) { + if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) + sv_unglob(sv); + } + else + sv_upgrade(sv, SVt_PV); + + SvGROW(sv, len + 1); + dptr = SvPVX(sv); + Move(ptr,dptr,len,char); + dptr[len] = '\0'; + SvCUR_set(sv, len); + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len) +{ + sv_setpvn(sv,ptr,len); + SvSETMAGIC(sv); +} + +void +sv_setpv(register SV *sv, register const char *ptr) +{ + register STRLEN len; + + SV_CHECK_THINKFIRST(sv); + if (!ptr) { + (void)SvOK_off(sv); + return; + } + len = strlen(ptr); + if (SvTYPE(sv) >= SVt_PV) { + if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) + sv_unglob(sv); + } + else + sv_upgrade(sv, SVt_PV); + + SvGROW(sv, len + 1); + Move(ptr,SvPVX(sv),len+1,char); + SvCUR_set(sv, len); + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_setpv_mg(register SV *sv, register const char *ptr) +{ + sv_setpv(sv,ptr); + SvSETMAGIC(sv); +} + +void +sv_usepvn(register SV *sv, register char *ptr, register STRLEN len) +{ + SV_CHECK_THINKFIRST(sv); + (void)SvUPGRADE(sv, SVt_PV); + if (!ptr) { + (void)SvOK_off(sv); + return; + } + if (SvPVX(sv)) + Safefree(SvPVX(sv)); + Renew(ptr, len+1, char); + SvPVX(sv) = ptr; + SvCUR_set(sv, len); + SvLEN_set(sv, len+1); + *SvEND(sv) = '\0'; + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len) +{ + sv_usepvn(sv,ptr,len); + SvSETMAGIC(sv); +} + +STATIC void +sv_check_thinkfirst(register SV *sv) +{ + if (SvREADONLY(sv)) { + dTHR; + if (PL_curcop != &PL_compiling) + croak(no_modify); + } + if (SvROK(sv)) + sv_unref(sv); +} + +void +sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */ + + +{ + register STRLEN delta; + + if (!ptr || !SvPOKp(sv)) + return; + SV_CHECK_THINKFIRST(sv); + if (SvTYPE(sv) < SVt_PVIV) + sv_upgrade(sv,SVt_PVIV); + + if (!SvOOK(sv)) { + SvIVX(sv) = 0; + SvFLAGS(sv) |= SVf_OOK; + } + SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK); + delta = ptr - SvPVX(sv); + SvLEN(sv) -= delta; + SvCUR(sv) -= delta; + SvPVX(sv) += delta; + SvIVX(sv) += delta; +} + +void +sv_catpvn(register SV *sv, register char *ptr, register STRLEN len) +{ + STRLEN tlen; + char *junk; + + junk = SvPV_force(sv, tlen); + SvGROW(sv, tlen + len + 1); + if (ptr == junk) + ptr = SvPVX(sv); + Move(ptr,SvPVX(sv)+tlen,len,char); + SvCUR(sv) += len; + *SvEND(sv) = '\0'; + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len) +{ + sv_catpvn(sv,ptr,len); + SvSETMAGIC(sv); +} + +void +sv_catsv(SV *dstr, register SV *sstr) +{ + char *s; + STRLEN len; + if (!sstr) + return; + if (s = SvPV(sstr, len)) + sv_catpvn(dstr,s,len); +} + +void +sv_catsv_mg(SV *dstr, register SV *sstr) +{ + sv_catsv(dstr,sstr); + SvSETMAGIC(dstr); +} + +void +sv_catpv(register SV *sv, register char *ptr) +{ + register STRLEN len; + STRLEN tlen; + char *junk; + + if (!ptr) + return; + 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; + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_catpv_mg(register SV *sv, register char *ptr) +{ + sv_catpv(sv,ptr); + SvSETMAGIC(sv); +} + +SV * +newSV(STRLEN len) +{ + register SV *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(register SV *sv, SV *obj, int how, char *name, I32 namlen) +{ + MAGIC* mg; + + if (SvREADONLY(sv)) { + dTHR; + if (PL_curcop != &PL_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 { + (void)SvUPGRADE(sv, SVt_PVMG); + } + Newz(702,mg, 1, MAGIC); + mg->mg_moremagic = SvMAGIC(sv); + + SvMAGIC(sv) = mg; + if (!obj || obj == sv || how == '#' || how == 'r') + mg->mg_obj = obj; + else { + dTHR; + mg->mg_obj = SvREFCNT_inc(obj); + mg->mg_flags |= MGf_REFCOUNTED; + } + mg->mg_type = how; + mg->mg_len = 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 'g': + mg->mg_virtual = &vtbl_mglob; + break; + case 'I': + mg->mg_virtual = &vtbl_isa; + 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_THREADS + case 'm': + mg->mg_virtual = &vtbl_mutex; + break; +#endif /* USE_THREADS */ +#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 'r': + mg->mg_virtual = &vtbl_regexp; + break; + case 'S': + mg->mg_virtual = &vtbl_sig; + break; + case 's': + mg->mg_virtual = &vtbl_sigelem; + break; + case 't': + mg->mg_virtual = &vtbl_taint; + mg->mg_len = 1; + break; + case 'U': + mg->mg_virtual = &vtbl_uvar; + break; + case 'v': + mg->mg_virtual = &vtbl_vec; + break; + 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; + 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 *sv, int type) +{ + MAGIC* mg; + MAGIC** mgp; + if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) + return 0; + mgp = &SvMAGIC(sv); + for (mg = *mgp; mg; mg = *mgp) { + if (mg->mg_type == type) { + MGVTBL* vtbl = mg->mg_virtual; + *mgp = mg->mg_moremagic; + if (vtbl && (vtbl->svt_free != NULL)) + (VTBL->svt_free)(sv, mg); + if (mg->mg_ptr && mg->mg_type != 'g') + 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 + mgp = &mg->mg_moremagic; + } + if (!SvMAGIC(sv)) { + SvMAGICAL_off(sv); + SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; + } + + return 0; +} + +void +sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) +{ + register char *big; + register char *mid; + register char *midend; + register char *bigend; + register I32 i; + STRLEN curlen; + + + if (!bigstr) + croak("Can't modify non-existent substring"); + SvPV_force(bigstr, curlen); + if (offset + len > curlen) { + SvGROW(bigstr, offset+len+1); + Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); + SvCUR_set(bigstr, offset+len); + } + + i = littlelen - len; + if (i > 0) { /* string might grow */ + big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); + mid = big + offset + len; + midend = bigend = big + SvCUR(bigstr); + bigend += i; + *bigend = '\0'; + while (midend > mid) /* shove everything down */ + *--bigend = *--midend; + Move(little,big+offset,littlelen,char); + SvCUR(bigstr) += i; + SvSETMAGIC(bigstr); + return; + } + else if (i == 0) { + Move(little,SvPVX(bigstr)+offset,len,char); + SvSETMAGIC(bigstr); + return; + } + + big = SvPVX(bigstr); + mid = big + offset; + midend = mid + len; + bigend = big + SvCUR(bigstr); + + if (midend > bigend) + croak("panic: sv_insert"); + + if (mid - big > bigend - midend) { /* faster to shorten from end */ + if (littlelen) { + Move(little, mid, littlelen,char); + mid += littlelen; + } + i = bigend - midend; + if (i > 0) { + Move(midend, mid, i,char); + mid += i; + } + *mid = '\0'; + SvCUR_set(bigstr, mid - big); + } + /*SUPPRESS 560*/ + else if (i = mid - big) { /* faster from front */ + midend -= littlelen; + mid = midend; + sv_chop(bigstr,midend-i); + big += i; + while (i--) + *--midend = *--big; + if (littlelen) + Move(little, mid, littlelen,char); + } + else if (littlelen) { + midend -= littlelen; + sv_chop(bigstr,midend); + Move(little,midend,littlelen,char); + } + else { + sv_chop(bigstr,midend); + } + SvSETMAGIC(bigstr); +} + +/* make sv point to what nstr did */ + +void +sv_replace(register SV *sv, register SV *nsv) +{ + U32 refcnt = SvREFCNT(sv); + SV_CHECK_THINKFIRST(sv); + if (SvREFCNT(nsv) != 1) + warn("Reference miscount in sv_replace()"); + if (SvMAGICAL(sv)) { + if (SvMAGICAL(nsv)) + mg_free(nsv); + else + sv_upgrade(nsv, SVt_PVMG); + SvMAGIC(nsv) = SvMAGIC(sv); + 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); +} + +void +sv_clear(register SV *sv) +{ + HV* stash; + assert(sv); + assert(SvREFCNT(sv) == 0); + + if (SvOBJECT(sv)) { + dTHR; + if (PL_defstash) { /* Still have a symbol table? */ + djSP; + GV* destructor; + SV tmpref; + + Zero(&tmpref, 1, SV); + sv_upgrade(&tmpref, SVt_RV); + SvROK_on(&tmpref); + SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ + SvREFCNT(&tmpref) = 1; + + do { + stash = SvSTASH(sv); + destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); + if (destructor) { + ENTER; + PUSHSTACKi(PERLSI_DESTROY); + SvRV(&tmpref) = SvREFCNT_inc(sv); + EXTEND(SP, 2); + PUSHMARK(SP); + PUSHs(&tmpref); + PUTBACK; + perl_call_sv((SV*)GvCV(destructor), + G_DISCARD|G_EVAL|G_KEEPERR); + SvREFCNT(sv)--; + POPSTACK; + LEAVE; + } + } while (SvOBJECT(sv) && SvSTASH(sv) != stash); + + del_XRV(SvANY(&tmpref)); + } + + if (SvOBJECT(sv)) { + SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ + SvOBJECT_off(sv); /* Curse the object. */ + if (SvTYPE(sv) != SVt_PVIO) + --PL_sv_objcount; /* XXX Might want something more general */ + } + if (SvREFCNT(sv)) { + if (PL_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); + stash = NULL; + switch (SvTYPE(sv)) { + case SVt_PVIO: + if (IoIFP(sv) && + 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 freescalar; + case SVt_PVCV: + case SVt_PVFM: + cv_undef((CV*)sv); + goto freescalar; + case SVt_PVHV: + hv_undef((HV*)sv); + break; + case SVt_PVAV: + av_undef((AV*)sv); + break; + case SVt_PVLV: + SvREFCNT_dec(LvTARG(sv)); + goto freescalar; + case SVt_PVGV: + gp_free((GV*)sv); + Safefree(GvNAME(sv)); + /* cannot decrease stash refcount yet, as we might recursively delete + ourselves when the refcnt drops to zero. Delay SvREFCNT_dec + of stash until current sv is completely gone. + -- JohnPC, 27 Mar 1998 */ + stash = GvSTASH(sv); + /* FALL THROUGH */ + case SVt_PVMG: + case SVt_PVNV: + case SVt_PVIV: + freescalar: + (void)SvOOK_off(sv); + /* FALL THROUGH */ + case SVt_PV: + case SVt_RV: + if (SvROK(sv)) + SvREFCNT_dec(SvRV(sv)); + else if (SvPVX(sv) && SvLEN(sv)) + Safefree(SvPVX(sv)); + break; +/* + case SVt_NV: + case SVt_IV: + case SVt_NULL: + break; +*/ + } + + switch (SvTYPE(sv)) { + case SVt_NULL: + break; + case SVt_IV: + del_XIV(SvANY(sv)); + break; + case SVt_NV: + del_XNV(SvANY(sv)); + break; + case SVt_RV: + del_XRV(SvANY(sv)); + break; + case SVt_PV: + del_XPV(SvANY(sv)); + break; + case SVt_PVIV: + del_XPVIV(SvANY(sv)); + break; + case SVt_PVNV: + del_XPVNV(SvANY(sv)); + break; + case SVt_PVMG: + del_XPVMG(SvANY(sv)); + break; + case SVt_PVLV: + del_XPVLV(SvANY(sv)); + break; + case SVt_PVAV: + del_XPVAV(SvANY(sv)); + break; + case SVt_PVHV: + del_XPVHV(SvANY(sv)); + break; + case SVt_PVCV: + del_XPVCV(SvANY(sv)); + break; + case SVt_PVGV: + del_XPVGV(SvANY(sv)); + /* code duplication for increased performance. */ + SvFLAGS(sv) &= SVf_BREAK; + SvFLAGS(sv) |= SVTYPEMASK; + /* decrease refcount of the stash that owns this GV, if any */ + if (stash) + SvREFCNT_dec(stash); + return; /* not break, SvFLAGS reset already happened */ + case SVt_PVBM: + del_XPVBM(SvANY(sv)); + break; + case SVt_PVFM: + del_XPVFM(SvANY(sv)); + break; + case SVt_PVIO: + del_XPVIO(SvANY(sv)); + break; + } + SvFLAGS(sv) &= SVf_BREAK; + SvFLAGS(sv) |= SVTYPEMASK; +} + +SV * +sv_newref(SV *sv) +{ + if (sv) + ATOMIC_INC(SvREFCNT(sv)); + return sv; +} + +void +sv_free(SV *sv) +{ + int refcount_is_zero; + + if (!sv) + return; + if (SvREFCNT(sv) == 0) { + if (SvFLAGS(sv) & SVf_BREAK) + return; + if (PL_in_clean_all) /* All is fair */ + return; + if (SvREADONLY(sv) && SvIMMORTAL(sv)) { + /* make sure SvREFCNT(sv)==0 happens very seldom */ + SvREFCNT(sv) = (~(U32)0)/2; + return; + } + warn("Attempt to free unreferenced scalar"); + return; + } + ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); + if (!refcount_is_zero) + return; +#ifdef DEBUGGING + if (SvTEMP(sv)) { + warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv); + return; + } +#endif + if (SvREADONLY(sv) && SvIMMORTAL(sv)) { + /* make sure SvREFCNT(sv)==0 happens very seldom */ + SvREFCNT(sv) = (~(U32)0)/2; + return; + } + sv_clear(sv); + if (! SvREFCNT(sv)) + del_SV(sv); +} + +STRLEN +sv_len(register SV *sv) +{ + char *junk; + STRLEN len; + + if (!sv) + return 0; + + if (SvGMAGICAL(sv)) + len = mg_length(sv); + else + junk = SvPV(sv, len); + return len; +} + +I32 +sv_eq(register SV *str1, register SV *str2) +{ + char *pv1; + STRLEN cur1; + char *pv2; + STRLEN cur2; + + if (!str1) { + pv1 = ""; + cur1 = 0; + } + else + pv1 = SvPV(str1, cur1); + + if (!str2) + return !cur1; + else + pv2 = SvPV(str2, cur2); + + if (cur1 != cur2) + return 0; + + return memEQ(pv1, pv2, cur1); +} + +I32 +sv_cmp(register SV *str1, register SV *str2) +{ + STRLEN cur1 = 0; + char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL; + STRLEN cur2 = 0; + char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL; + I32 retval; + + if (!cur1) + return cur2 ? -1 : 0; + + if (!cur2) + return 1; + + retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); + + if (retval) + return retval < 0 ? -1 : 1; + + if (cur1 == cur2) + return 0; + else + return cur1 < cur2 ? -1 : 1; +} + +I32 +sv_cmp_locale(register SV *sv1, register SV *sv2) +{ +#ifdef USE_LOCALE_COLLATE + + char *pv1, *pv2; + STRLEN len1, len2; + I32 retval; + + if (PL_collation_standard) + goto raw_compare; + + len1 = 0; + pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; + len2 = 0; + pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) 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 *sv, STRLEN *nxp) +{ + MAGIC *mg; + + mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL; + if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_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 + sizeof(PL_collation_ix); + } + 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(PL_collation_ix); + } + else { + *nxp = 0; + return NULL; + } +} + +#endif /* USE_LOCALE_COLLATE */ + +char * +sv_gets(register SV *sv, register PerlIO *fp, I32 append) +{ + dTHR; + char *rsptr; + STRLEN rslen; + register STDCHAR rslast; + register STDCHAR *bp; + register I32 cnt; + I32 i; + + SV_CHECK_THINKFIRST(sv); + (void)SvUPGRADE(sv, SVt_PV); + SvSCREAM_off(sv); + + if (RsSNARF(PL_rs)) { + rsptr = NULL; + rslen = 0; + } + else if (RsRECORD(PL_rs)) { + I32 recsize, bytesread; + char *buffer; + + /* Grab the size of the record we're getting */ + recsize = SvIV(SvRV(PL_rs)); + (void)SvPOK_only(sv); /* Validate pointer */ + buffer = SvGROW(sv, recsize + 1); + /* Go yank in */ +#ifdef VMS + /* VMS wants read instead of fread, because fread doesn't respect */ + /* RMS record boundaries. This is not necessarily a good thing to be */ + /* doing, but we've got no other real choice */ + bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); +#else + bytesread = PerlIO_read(fp, buffer, recsize); +#endif + SvCUR_set(sv, bytesread); + buffer[bytesread] = '\0'; + return(SvCUR(sv) ? SvPVX(sv) : Nullch); + } + else if (RsPARA(PL_rs)) { + rsptr = "\n\n"; + rslen = 2; + } + else + rsptr = SvPV(PL_rs, rslen); + rslast = rslen ? rsptr[rslen - 1] : '\0'; + + if (RsPARA(PL_rs)) { /* have to do this both before and after */ + do { /* to make sure file boundaries work right */ + if (PerlIO_eof(fp)) + return 0; + i = PerlIO_getc(fp); + if (i != '\n') { + if (i == -1) + return 0; + PerlIO_ungetc(fp,i); + break; + } + } while (i != EOF); + } + + /* 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; + cnt -= shortbuffered; + } + else { + shortbuffered = 0; + /* remember that cnt can be negative */ + SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); + } + } + else + shortbuffered = 0; + 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) { + 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 */ + cnt = shortbuffered; + shortbuffered = 0; + bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ + SvCUR_set(sv, bpx); + SvGROW(sv, SvLEN(sv) + append + cnt + 2); + bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ + continue; + } + + 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 - (STDCHAR*)SvPVX(sv); /* box up before relocation */ + SvCUR_set(sv, bpx); + SvGROW(sv, bpx + cnt + 2); + bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ + + *bp++ = i; /* store character from PerlIO_getc */ + + if (rslen && (STDCHAR)i == rslast) /* all done for now? */ + goto thats_all_folks; + } + +thats_all_folks: + 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; + 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 - (STDCHAR*)SvPVX(sv)); /* set length */ + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: done, len=%ld, string=|%.*s|\n", + (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); + } + else + { + /*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, (char *) buf, cnt); + else + sv_setpvn(sv, (char *) buf, cnt); + + if (i != EOF && /* joy */ + (!rslen || + SvCUR(sv) < rslen || + memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) + { + append = -1; + /* + * 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; + } + } + + if (RsPARA(PL_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') { + PerlIO_ungetc(fp,i); + break; + } + } + } + +#ifdef WIN32 + win32_strip_return(sv); +#endif + + return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; +} + + +void +sv_inc(register SV *sv) +{ + register char *d; + int flags; + + if (!sv) + return; + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv)) { + dTHR; + if (PL_curcop != &PL_compiling) + croak(no_modify); + } + if (SvROK(sv)) { + IV i; +#ifdef OVERLOAD + if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; +#endif /* OVERLOAD */ + i = (IV)SvRV(sv); + sv_unref(sv); + sv_setiv(sv, i); + } + } + if (SvGMAGICAL(sv)) + mg_get(sv); + flags = SvFLAGS(sv); + if (flags & SVp_NOK) { + (void)SvNOK_only(sv); + SvNVX(sv) += 1.0; + return; + } + 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 & SVp_POK) || !*SvPVX(sv)) { + if ((flags & SVTYPEMASK) < SVt_PVNV) + sv_upgrade(sv, SVt_NV); + SvNVX(sv) = 1.0; + (void)SvNOK_only(sv); + return; + } + d = SvPVX(sv); + while (isALPHA(*d)) d++; + while (isDIGIT(*d)) d++; + if (*d) { + SET_NUMERIC_STANDARD(); + sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ + return; + } + d--; + while (d >= SvPVX(sv)) { + if (isDIGIT(*d)) { + if (++*d <= '9') + return; + *(d--) = '0'; + } + else { +#ifdef EBCDIC + /* MKS: The original code here died if letters weren't consecutive. + * at least it didn't have to worry about non-C locales. The + * new code assumes that ('z'-'a')==('Z'-'A'), letters are + * arranged in order (although not consecutively) and that only + * [A-Za-z] are accepted by isALPHA in the C locale. + */ + if (*d != 'z' && *d != 'Z') { + do { ++*d; } while (!isALPHA(*d)); + return; + } + *(d--) -= 'z' - 'a'; +#else + ++*d; + if (isALPHA(*d)) + return; + *(d--) -= 'z' - 'a' + 1; +#endif + } + } + /* oh,oh, the number grew */ + SvGROW(sv, SvCUR(sv) + 2); + SvCUR(sv)++; + for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) + *d = d[-1]; + if (isDIGIT(d[1])) + *d = '1'; + else + *d = d[1]; +} + +void +sv_dec(register SV *sv) +{ + int flags; + + if (!sv) + return; + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv)) { + dTHR; + if (PL_curcop != &PL_compiling) + croak(no_modify); + } + if (SvROK(sv)) { + IV i; +#ifdef OVERLOAD + if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; +#endif /* OVERLOAD */ + i = (IV)SvRV(sv); + sv_unref(sv); + sv_setiv(sv, i); + } + } + if (SvGMAGICAL(sv)) + mg_get(sv); + flags = SvFLAGS(sv); + if (flags & SVp_NOK) { + SvNVX(sv) -= 1.0; + (void)SvNOK_only(sv); + return; + } + 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 & SVp_POK)) { + if ((flags & SVTYPEMASK) < SVt_PVNV) + sv_upgrade(sv, SVt_NV); + SvNVX(sv) = -1.0; + (void)SvNOK_only(sv); + return; + } + SET_NUMERIC_STANDARD(); + sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */ +} + +/* Make a string that will exist for the duration of the expression + * evaluation. Actually, it may have to last longer than that, but + * hopefully we won't free it until it has been assigned to a + * permanent location. */ + +STATIC void +sv_mortalgrow(void) +{ + dTHR; + PL_tmps_max += (PL_tmps_max < 512) ? 128 : 512; + Renew(PL_tmps_stack, PL_tmps_max, SV*); +} + +SV * +sv_mortalcopy(SV *oldstr) +{ + dTHR; + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_setsv(sv,oldstr); + if (++PL_tmps_ix >= PL_tmps_max) + sv_mortalgrow(); + PL_tmps_stack[PL_tmps_ix] = sv; + SvTEMP_on(sv); + return sv; +} + +SV * +sv_newmortal(void) +{ + dTHR; + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = SVs_TEMP; + if (++PL_tmps_ix >= PL_tmps_max) + sv_mortalgrow(); + PL_tmps_stack[PL_tmps_ix] = sv; + return sv; +} + +/* same thing without the copying */ + +SV * +sv_2mortal(register SV *sv) +{ + dTHR; + if (!sv) + return sv; + if (SvREADONLY(sv) && SvIMMORTAL(sv)) + return sv; + if (++PL_tmps_ix >= PL_tmps_max) + sv_mortalgrow(); + PL_tmps_stack[PL_tmps_ix] = sv; + SvTEMP_on(sv); + return sv; +} + +SV * +newSVpv(char *s, STRLEN len) +{ + register SV *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; +} + +SV * +newSVpvn(char *s, STRLEN len) +{ + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_setpvn(sv,s,len); + return sv; +} + +SV * +newSVpvf(const char* pat, ...) +{ + register SV *sv; + va_list args; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + va_start(args, pat); + sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); + return sv; +} + + +SV * +newSVnv(double n) +{ + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_setnv(sv,n); + return sv; +} + +SV * +newSViv(IV i) +{ + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_setiv(sv,i); + return sv; +} + +SV * +newRV_noinc(SV *tmpRef) +{ + dTHR; + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_upgrade(sv, SVt_RV); + SvTEMP_off(tmpRef); + SvRV(sv) = tmpRef; + SvROK_on(sv); + return sv; +} + +SV * +newRV(SV *tmpRef) +{ + return newRV_noinc(SvREFCNT_inc(tmpRef)); +} + +/* make an exact duplicate of old */ + +SV * +newSVsv(register SV *old) +{ + register SV *sv; + + if (!old) + return Nullsv; + if (SvTYPE(old) == SVTYPEMASK) { + warn("semi-panic: attempt to dup freed string"); + return Nullsv; + } + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + if (SvTEMP(old)) { + SvTEMP_off(old); + sv_setsv(sv,old); + SvTEMP_on(old); + } + else + sv_setsv(sv,old); + return sv; +} + +void +sv_reset(register char *s, HV *stash) +{ + register HE *entry; + register GV *gv; + register SV *sv; + register I32 i; + register PMOP *pm; + register I32 max; + char todo[256]; + + if (!stash) + return; + + if (!*s) { /* reset ?? searches */ + for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { + pm->op_pmdynflags &= ~PMdf_USED; + } + return; + } + + /* reset variables */ + + if (!HvARRAY(stash)) + return; + + Zero(todo, 256, char); + while (*s) { + i = *s; + if (s[1] == '-') { + s += 2; + } + max = *s++; + for ( ; i <= max; i++) { + todo[i] = 1; + } + for (i = 0; i <= (I32) HvMAX(stash); i++) { + for (entry = HvARRAY(stash)[i]; + entry; + entry = HeNEXT(entry)) { + if (!todo[(U8)*HeKEY(entry)]) + continue; + gv = (GV*)HeVAL(entry); + sv = GvSV(gv); + (void)SvOK_off(sv); + if (SvTYPE(sv) >= SVt_PV) { + SvCUR_set(sv, 0); + if (SvPVX(sv) != Nullch) + *SvPVX(sv) = '\0'; + SvTAINT(sv); + } + if (GvAV(gv)) { + av_clear(GvAV(gv)); + } + if (GvHV(gv) && !HvNAME(GvHV(gv))) { + hv_clear(GvHV(gv)); +#ifndef VMS /* VMS has no environ array */ + if (gv == PL_envgv) + environ[0] = Nullch; +#endif + } + } + } + } +} + +IO* +sv_2io(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,PL_na), FALSE, SVt_PVIO); + if (gv) + io = GvIO(gv); + else + io = 0; + if (!io) + croak("Bad filehandle: %s", SvPV(sv,PL_na)); + break; + } + return io; +} + +CV * +sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref) +{ + GV *gv; + CV *cv; + + if (!sv) + return *gvp = Nullgv, Nullcv; + switch (SvTYPE(sv)) { + case SVt_PVCV: + *st = CvSTASH(sv); + *gvp = Nullgv; + return (CV*)sv; + case SVt_PVHV: + case SVt_PVAV: + *gvp = Nullgv; + return Nullcv; + case SVt_PVGV: + gv = (GV*)sv; + *gvp = gv; + *st = GvESTASH(gv); + goto fix_gv; + + default: + if (SvGMAGICAL(sv)) + mg_get(sv); + if (SvROK(sv)) { + cv = (CV*)SvRV(sv); + if (SvTYPE(cv) != SVt_PVCV) + croak("Not a subroutine reference"); + *gvp = Nullgv; + *st = CvSTASH(cv); + return cv; + } + if (isGV(sv)) + gv = (GV*)sv; + else + gv = gv_fetchpv(SvPV(sv, PL_na), lref, SVt_PVCV); + *gvp = gv; + if (!gv) + return Nullcv; + *st = GvESTASH(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,PL_na)); + } + return GvCVu(gv); + } +} + +I32 +sv_true(register SV *sv) +{ + dTHR; + if (!sv) + return 0; + if (SvPOK(sv)) { + register XPV* tXpv; + if ((tXpv = (XPV*)SvANY(sv)) && + (*tXpv->xpv_pv > '0' || + tXpv->xpv_cur > 1 || + (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) + return 1; + else + return 0; + } + else { + if (SvIOK(sv)) + return SvIVX(sv) != 0; + else { + if (SvNOK(sv)) + return SvNVX(sv) != 0.0; + else + return sv_2bool(sv); + } + } +} + +IV +sv_iv(register SV *sv) +{ + if (SvIOK(sv)) + return SvIVX(sv); + return sv_2iv(sv); +} + +UV +sv_uv(register SV *sv) +{ + if (SvIOK(sv)) + return SvUVX(sv); + return sv_2uv(sv); +} + +double +sv_nv(register SV *sv) +{ + if (SvNOK(sv)) + return SvNVX(sv); + return sv_2nv(sv); +} + +char * +sv_pvn(SV *sv, STRLEN *lp) +{ + if (SvPOK(sv)) { + *lp = SvCUR(sv); + return SvPVX(sv); + } + return sv_2pv(sv, lp); +} + +char * +sv_pvn_force(SV *sv, STRLEN *lp) +{ + char *s; + + if (SvREADONLY(sv)) { + dTHR; + if (PL_curcop != &PL_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 { + dTHR; + croak("Can't coerce %s to string in %s", sv_reftype(sv,0), + op_name[PL_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 *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 "FORMAT"; + default: return "UNKNOWN"; + } + } +} + +int +sv_isobject(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 *sv, char *name) +{ + 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 strEQ(HvNAME(SvSTASH(sv)), name); +} + +SV* +newSVrv(SV *rv, char *classname) +{ + dTHR; + SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 0; + SvFLAGS(sv) = 0; + + SV_CHECK_THINKFIRST(rv); +#ifdef OVERLOAD + SvAMAGIC_off(rv); +#endif /* OVERLOAD */ + + if (SvTYPE(rv) < SVt_RV) + sv_upgrade(rv, SVt_RV); + + (void)SvOK_off(rv); + SvRV(rv) = SvREFCNT_inc(sv); + SvROK_on(rv); + + if (classname) { + HV* stash = gv_stashpv(classname, TRUE); + (void)sv_bless(rv, stash); + } + return sv; +} + +SV* +sv_setref_pv(SV *rv, char *classname, void *pv) +{ + if (!pv) { + sv_setsv(rv, &PL_sv_undef); + SvSETMAGIC(rv); + } + else + sv_setiv(newSVrv(rv,classname), (IV)pv); + return rv; +} + +SV* +sv_setref_iv(SV *rv, char *classname, IV iv) +{ + sv_setiv(newSVrv(rv,classname), iv); + return rv; +} + +SV* +sv_setref_nv(SV *rv, char *classname, double nv) +{ + sv_setnv(newSVrv(rv,classname), nv); + return rv; +} + +SV* +sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n) +{ + sv_setpvn(newSVrv(rv,classname), pv, n); + return rv; +} + +SV* +sv_bless(SV *sv, HV *stash) +{ + dTHR; + SV *tmpRef; + if (!SvROK(sv)) + croak("Can't bless non-reference value"); + tmpRef = SvRV(sv); + if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { + if (SvREADONLY(tmpRef)) + croak(no_modify); + if (SvOBJECT(tmpRef)) { + if (SvTYPE(tmpRef) != SVt_PVIO) + --PL_sv_objcount; + SvREFCNT_dec(SvSTASH(tmpRef)); + } + } + SvOBJECT_on(tmpRef); + if (SvTYPE(tmpRef) != SVt_PVIO) + ++PL_sv_objcount; + (void)SvUPGRADE(tmpRef, SVt_PVMG); + SvSTASH(tmpRef) = (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) +{ + assert(SvTYPE(sv) == SVt_PVGV); + SvFAKE_off(sv); + if (GvGP(sv)) + gp_free((GV*)sv); + if (GvSTASH(sv)) { + SvREFCNT_dec(GvSTASH(sv)); + GvSTASH(sv) = Nullhv; + } + sv_unmagic(sv, '*'); + Safefree(GvNAME(sv)); + GvMULTI_off(sv); + SvFLAGS(sv) &= ~SVTYPEMASK; + SvFLAGS(sv) |= SVt_PVMG; +} + +void +sv_unref(SV *sv) +{ + SV* rv = SvRV(sv); + + SvRV(sv) = 0; + SvROK_off(sv); + if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) + SvREFCNT_dec(rv); + else + sv_2mortal(rv); /* Schedule for freeing later */ +} + +void +sv_taint(SV *sv) +{ + sv_magic((sv), Nullsv, 't', Nullch, 0); +} + +void +sv_untaint(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) +{ + 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; +} + +void +sv_setpviv(SV *sv, IV iv) +{ + STRLEN len; + char buf[TYPE_DIGITS(UV)]; + char *ptr = buf + sizeof(buf); + int sign; + UV uv; + char *p; + + sv_setpvn(sv, "", 0); + if (iv >= 0) { + uv = iv; + sign = 0; + } else { + uv = -iv; + sign = 1; + } + do { + *--ptr = '0' + (uv % 10); + } while (uv /= 10); + len = (buf + sizeof(buf)) - ptr; + /* taking advantage of SvCUR(sv) == 0 */ + SvGROW(sv, sign + len + 1); + p = SvPVX(sv); + if (sign) + *p++ = '-'; + memcpy(p, ptr, len); + p += len; + *p = '\0'; + SvCUR(sv) = p - SvPVX(sv); +} + + +void +sv_setpviv_mg(SV *sv, IV iv) +{ + sv_setpviv(sv,iv); + SvSETMAGIC(sv); +} + +void +sv_setpvf(SV *sv, const char* pat, ...) +{ + va_list args; + va_start(args, pat); + sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); +} + + +void +sv_setpvf_mg(SV *sv, const char* pat, ...) +{ + va_list args; + va_start(args, pat); + sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); + SvSETMAGIC(sv); +} + +void +sv_catpvf(SV *sv, const char* pat, ...) +{ + va_list args; + va_start(args, pat); + sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); +} + +void +sv_catpvf_mg(SV *sv, const char* pat, ...) +{ + va_list args; + va_start(args, pat); + sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); + SvSETMAGIC(sv); +} + +void +sv_vsetpvfn(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 *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale) +{ + dTHR; + 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: + if (!uv) + alt = FALSE; + 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) { + if (precis > elen) + zeros = precis - elen; + else if (precis == 0 && elen == 1 && *eptr == '0') + elen = 0; + } + 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 (left) + *--eptr = '-'; + 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 && PL_dowarn && + (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { + SV *msg = sv_newmortal(); + sv_setpvf(msg, "Invalid conversion in %s: ", + (PL_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 ... */ + if (c == '\0') + --q; + eptr = p; + elen = q - p; + + /* ... right here, because formatting flags should not apply */ + SvGROW(sv, SvCUR(sv) + elen + 1); + p = SvEND(sv); + memcpy(p, eptr, elen); + p += elen; + *p = '\0'; + SvCUR(sv) = p - SvPVX(sv); + continue; /* not "break" */ + } + + have = esignlen + zeros + elen; + need = (have > width ? have : width); + gap = need - have; + + SvGROW(sv, SvCUR(sv) + need + 1); + 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); + } +} + +void +sv_dump(SV *sv) +{ +#ifdef DEBUGGING + 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, " ),"); + } + } + case SVt_PVBM: + if (SvTAIL(sv)) sv_catpv(d, "TAIL,"); + if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,"); + break; + } + + 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)AvFILLp(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,PL_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)); +#ifdef USE_THREADS + PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv)); + PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv)); +#endif /* USE_THREADS */ + PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", + (unsigned long)CvFLAGS(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", + SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)"); + 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; + } +#endif /* DEBUGGING */ +} |
