X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=sv.c;h=85c65bf902e968806bef41b6610f6e5b751ee240;hb=055be0b80e0d5ab4109104cbf7a5f5379033e671;hp=0c745af47725598f0a0ac418989784fb40db3337;hpb=79072805bf63abe5b5978b5928ab00d360ea3e7f;p=p5sagit%2Fp5-mst-13.2.git diff --git a/sv.c b/sv.c index 0c745af..85c65bf 100644 --- a/sv.c +++ b/sv.c @@ -1,54 +1,601 @@ -/* $RCSfile: sv.c,v $$Revision: 4.1 $$Date: 92/08/07 18:26:45 $ +/* sv.c * - * Copyright (c) 1991, Larry Wall + * Copyright (c) 1991-1994, Larry Wall * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * - * $Log: sv.c,v $ - * Revision 4.1 92/08/07 18:26:45 lwall - * - * Revision 4.0.1.6 92/06/11 21:14:21 lwall - * patch34: quotes containing subscripts containing variables didn't parse right - * - * Revision 4.0.1.5 92/06/08 15:40:43 lwall - * patch20: removed implicit int declarations on functions - * patch20: Perl now distinguishes overlapped copies from non-overlapped - * patch20: paragraph mode now skips extra newlines automatically - * patch20: fixed memory leak in doube-quote interpretation - * patch20: made /\$$foo/ look for literal '$foo' - * patch20: "$var{$foo'bar}" didn't scan subscript correctly - * patch20: a splice on non-existent array elements could dump core - * patch20: running taintperl explicitly now does checks even if $< == $> - * - * Revision 4.0.1.4 91/11/05 18:40:51 lwall - * patch11: $foo .= could overrun malloced memory - * patch11: \$ didn't always make it through double-quoter to regexp routines - * patch11: prepared for ctype implementations that don't define isascii() - * - * Revision 4.0.1.3 91/06/10 01:27:54 lwall - * patch10: $) and $| incorrectly handled in run-time patterns - * - * Revision 4.0.1.2 91/06/07 11:58:13 lwall - * patch4: new copyright notice - * patch4: taint check on undefined string could cause core dump - * - * Revision 4.0.1.1 91/04/12 09:15:30 lwall - * patch1: fixed undefined environ problem - * patch1: substr($ENV{"PATH"},0,0) = "/foo:" didn't modify environment - * patch1: $foo .= could cause core dump for certain lengths of $foo - * - * Revision 4.0 91/03/20 01:39:55 lwall - * 4.0 baseline. - * + */ + +/* + * "I wonder what the Entish is for 'yes' and 'no'," he thought. */ #include "EXTERN.h" #include "perl.h" -#include "perly.h" -static void ucase(); -static void lcase(); +#ifdef OVR_DBL_DIG +/* Use an overridden DBL_DIG */ +# ifdef DBL_DIG +# undef DBL_DIG +# endif +# define DBL_DIG OVR_DBL_DIG +#else +/* The following is all to get DBL_DIG, in order to pick a nice + default value for printing floating point numbers in Gconvert. + (see config.h) +*/ +#ifdef I_LIMITS +#include +#endif +#ifdef I_FLOAT +#include +#endif +#ifndef HAS_DBL_DIG +#define DBL_DIG 15 /* A guess that works lots of places */ +#endif +#endif + +#if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) && !defined(__QNX__) +# define FAST_SV_GETS +#endif + +static IV asIV _((SV* sv)); +static UV asUV _((SV* sv)); +static SV *more_sv _((void)); +static XPVIV *more_xiv _((void)); +static XPVNV *more_xnv _((void)); +static XPV *more_xpv _((void)); +static XRV *more_xrv _((void)); +static XPVIV *new_xiv _((void)); +static XPVNV *new_xnv _((void)); +static XPV *new_xpv _((void)); +static XRV *new_xrv _((void)); +static void del_xiv _((XPVIV* p)); +static void del_xnv _((XPVNV* p)); +static void del_xpv _((XPV* p)); +static void del_xrv _((XRV* p)); +static void sv_mortalgrow _((void)); +static void sv_unglob _((SV* sv)); + +typedef void (*SVFUNC) _((SV*)); + +#ifdef PURIFY + +#define new_SV(p) \ + do { \ + (p) = (SV*)safemalloc(sizeof(SV)); \ + reg_add(p); \ + } while (0) + +#define del_SV(p) \ + do { \ + reg_remove(p); \ + free((char*)(p)); \ + } while (0) + +static SV **registry; +static I32 regsize; + +#define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size)) + +#define REG_REPLACE(sv,a,b) \ + do { \ + void* p = sv->sv_any; \ + I32 h = REGHASH(sv, regsize); \ + I32 i = h; \ + while (registry[i] != (a)) { \ + if (++i >= regsize) \ + i = 0; \ + if (i == h) \ + die("SV registry bug"); \ + } \ + registry[i] = (b); \ + } while (0) + +#define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv) +#define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv) + +static void +reg_add(sv) +SV* sv; +{ + if (sv_count >= (regsize >> 1)) + { + SV **oldreg = registry; + I32 oldsize = regsize; + + regsize = regsize ? ((regsize << 2) + 1) : 2037; + registry = (SV**)safemalloc(regsize * sizeof(SV*)); + memzero(registry, regsize * sizeof(SV*)); + + if (oldreg) { + I32 i; + + for (i = 0; i < oldsize; ++i) { + SV* oldsv = oldreg[i]; + if (oldsv) + REG_ADD(oldsv); + } + Safefree(oldreg); + } + } + + REG_ADD(sv); + ++sv_count; +} + +static void +reg_remove(sv) +SV* sv; +{ + REG_REMOVE(sv); + --sv_count; +} + +static void +visit(f) +SVFUNC f; +{ + I32 i; + + for (i = 0; i < regsize; ++i) { + SV* sv = registry[i]; + if (sv) + (*f)(sv); + } +} + +void +sv_add_arena(ptr, size, flags) +char* ptr; +U32 size; +U32 flags; +{ + if (!(flags & SVf_FAKE)) + free(ptr); +} + +#else /* ! PURIFY */ + +/* + * "A time to plant, and a time to uproot what was planted..." + */ + +#define plant_SV(p) \ + do { \ + SvANY(p) = (void *)sv_root; \ + SvFLAGS(p) = SVTYPEMASK; \ + sv_root = (p); \ + --sv_count; \ + } while (0) + +#define uproot_SV(p) \ + do { \ + (p) = sv_root; \ + sv_root = (SV*)SvANY(p); \ + ++sv_count; \ + } while (0) + +#define new_SV(p) \ + if (sv_root) \ + uproot_SV(p); \ + else \ + (p) = more_sv() + +#ifdef DEBUGGING + +#define del_SV(p) \ + if (debug & 32768) \ + del_sv(p); \ + else \ + plant_SV(p) + +static void +del_sv(p) +SV* p; +{ + if (debug & 32768) { + SV* sva; + SV* sv; + SV* svend; + int ok = 0; + for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { + sv = sva + 1; + svend = &sva[SvREFCNT(sva)]; + if (p >= sv && p < svend) + ok = 1; + } + if (!ok) { + warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p); + return; + } + } + plant_SV(p); +} + +#else /* ! DEBUGGING */ + +#define del_SV(p) plant_SV(p) + +#endif /* DEBUGGING */ + +void +sv_add_arena(ptr, size, flags) +char* ptr; +U32 size; +U32 flags; +{ + SV* sva = (SV*)ptr; + register SV* sv; + register SV* svend; + Zero(sva, size, char); + + /* The first SV in an arena isn't an SV. */ + SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */ + SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ + SvFLAGS(sva) = flags; /* FAKE if not to be freed */ + + sv_arenaroot = sva; + sv_root = sva + 1; + + svend = &sva[SvREFCNT(sva) - 1]; + sv = sva + 1; + while (sv < svend) { + SvANY(sv) = (void *)(SV*)(sv + 1); + SvFLAGS(sv) = SVTYPEMASK; + sv++; + } + SvANY(sv) = 0; + SvFLAGS(sv) = SVTYPEMASK; +} + +static SV* +more_sv() +{ + register SV* sv; + + if (nice_chunk) { + sv_add_arena(nice_chunk, nice_chunk_size, 0); + nice_chunk = Nullch; + } + else { + char *chunk; /* must use New here to match call to */ + New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ + sv_add_arena(chunk, 1008, 0); + } + uproot_SV(sv); + return sv; +} + +static void +visit(f) +SVFUNC f; +{ + SV* sva; + SV* sv; + register SV* svend; + + for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { + svend = &sva[SvREFCNT(sva)]; + for (sv = sva + 1; sv < svend; ++sv) { + if (SvTYPE(sv) != SVTYPEMASK) + (*f)(sv); + } + } +} + +#endif /* PURIFY */ + +static void +do_report_used(sv) +SV* sv; +{ + if (SvTYPE(sv) != SVTYPEMASK) { + /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */ + PerlIO_printf(PerlIO_stderr(), "****\n"); + sv_dump(sv); + } +} + +void +sv_report_used() +{ + visit(do_report_used); +} + +static void +do_clean_objs(sv) +SV* sv; +{ + SV* rv; + + if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { + DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));) + SvROK_off(sv); + SvRV(sv) = 0; + SvREFCNT_dec(rv); + } + + /* XXX Might want to check arrays, etc. */ +} + +#ifndef DISABLE_DESTRUCTOR_KLUDGE +static void +do_clean_named_objs(sv) +SV* sv; +{ + if (SvTYPE(sv) == SVt_PVGV && GvSV(sv)) + do_clean_objs(GvSV(sv)); +} +#endif + +void +sv_clean_objs() +{ +#ifndef DISABLE_DESTRUCTOR_KLUDGE + visit(do_clean_named_objs); +#endif + visit(do_clean_objs); +} + +static void +do_clean_all(sv) +SV* sv; +{ + DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));) + SvFLAGS(sv) |= SVf_BREAK; + SvREFCNT_dec(sv); +} + +static int in_clean_all = 0; + +void +sv_clean_all() +{ + in_clean_all = 1; + visit(do_clean_all); + in_clean_all = 0; +} + +void +sv_free_arenas() +{ + SV* sva; + SV* svanext; + + /* Free arenas here, but be careful about fake ones. (We assume + contiguity of the fake ones with the corresponding real ones.) */ + + for (sva = sv_arenaroot; sva; sva = svanext) { + svanext = (SV*) SvANY(sva); + while (svanext && SvFAKE(svanext)) + svanext = (SV*) SvANY(svanext); + + if (!SvFAKE(sva)) + Safefree((void *)sva); + } +} + +static XPVIV* +new_xiv() +{ + IV** xiv; + if (xiv_root) { + xiv = xiv_root; + /* + * See comment in more_xiv() -- RAM. + */ + xiv_root = (IV**)*xiv; + return (XPVIV*)((char*)xiv - sizeof(XPV)); + } + return more_xiv(); +} + +static void +del_xiv(p) +XPVIV* p; +{ + IV** xiv = (IV**)((char*)(p) + sizeof(XPV)); + *xiv = (IV *)xiv_root; + xiv_root = xiv; +} + +static XPVIV* +more_xiv() +{ + register IV** xiv; + register IV** xivend; + XPV* ptr = (XPV*)safemalloc(1008); + ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */ + xiv_arenaroot = ptr; /* to keep Purify happy */ + + xiv = (IV**) ptr; + xivend = &xiv[1008 / sizeof(IV *) - 1]; + xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */ + xiv_root = xiv; + while (xiv < xivend) { + *xiv = (IV *)(xiv + 1); + xiv++; + } + *xiv = 0; + return new_xiv(); +} + +static XPVNV* +new_xnv() +{ + double* xnv; + if (xnv_root) { + xnv = xnv_root; + xnv_root = *(double**)xnv; + return (XPVNV*)((char*)xnv - sizeof(XPVIV)); + } + return more_xnv(); +} + +static void +del_xnv(p) +XPVNV* p; +{ + double* xnv = (double*)((char*)(p) + sizeof(XPVIV)); + *(double**)xnv = xnv_root; + xnv_root = xnv; +} + +static XPVNV* +more_xnv() +{ + register double* xnv; + register double* xnvend; + xnv = (double*)safemalloc(1008); + xnvend = &xnv[1008 / sizeof(double) - 1]; + xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ + xnv_root = xnv; + while (xnv < xnvend) { + *(double**)xnv = (double*)(xnv + 1); + xnv++; + } + *(double**)xnv = 0; + return new_xnv(); +} + +static XRV* +new_xrv() +{ + XRV* xrv; + if (xrv_root) { + xrv = xrv_root; + xrv_root = (XRV*)xrv->xrv_rv; + return xrv; + } + return more_xrv(); +} + +static void +del_xrv(p) +XRV* p; +{ + p->xrv_rv = (SV*)xrv_root; + xrv_root = p; +} + +static XRV* +more_xrv() +{ + register XRV* xrv; + register XRV* xrvend; + xrv_root = (XRV*)safemalloc(1008); + xrv = xrv_root; + xrvend = &xrv[1008 / sizeof(XRV) - 1]; + while (xrv < xrvend) { + xrv->xrv_rv = (SV*)(xrv + 1); + xrv++; + } + xrv->xrv_rv = 0; + return new_xrv(); +} + +static XPV* +new_xpv() +{ + XPV* xpv; + if (xpv_root) { + xpv = xpv_root; + xpv_root = (XPV*)xpv->xpv_pv; + return xpv; + } + return more_xpv(); +} + +static void +del_xpv(p) +XPV* p; +{ + p->xpv_pv = (char*)xpv_root; + xpv_root = p; +} + +static XPV* +more_xpv() +{ + register XPV* xpv; + register XPV* xpvend; + xpv_root = (XPV*)safemalloc(1008); + xpv = xpv_root; + xpvend = &xpv[1008 / sizeof(XPV) - 1]; + while (xpv < xpvend) { + xpv->xpv_pv = (char*)(xpv + 1); + xpv++; + } + xpv->xpv_pv = 0; + return new_xpv(); +} + +#ifdef PURIFY +#define new_XIV() (void*)safemalloc(sizeof(XPVIV)) +#define del_XIV(p) free((char*)p) +#else +#define new_XIV() (void*)new_xiv() +#define del_XIV(p) del_xiv(p) +#endif + +#ifdef PURIFY +#define new_XNV() (void*)safemalloc(sizeof(XPVNV)) +#define del_XNV(p) free((char*)p) +#else +#define new_XNV() (void*)new_xnv() +#define del_XNV(p) del_xnv(p) +#endif + +#ifdef PURIFY +#define new_XRV() (void*)safemalloc(sizeof(XRV)) +#define del_XRV(p) free((char*)p) +#else +#define new_XRV() (void*)new_xrv() +#define del_XRV(p) del_xrv(p) +#endif + +#ifdef PURIFY +#define new_XPV() (void*)safemalloc(sizeof(XPV)) +#define del_XPV(p) free((char*)p) +#else +#define new_XPV() (void*)new_xpv() +#define del_XPV(p) del_xpv(p) +#endif + +#define new_XPVIV() (void*)safemalloc(sizeof(XPVIV)) +#define del_XPVIV(p) free((char*)p) + +#define new_XPVNV() (void*)safemalloc(sizeof(XPVNV)) +#define del_XPVNV(p) free((char*)p) + +#define new_XPVMG() (void*)safemalloc(sizeof(XPVMG)) +#define del_XPVMG(p) free((char*)p) + +#define new_XPVLV() (void*)safemalloc(sizeof(XPVLV)) +#define del_XPVLV(p) free((char*)p) + +#define new_XPVAV() (void*)safemalloc(sizeof(XPVAV)) +#define del_XPVAV(p) free((char*)p) + +#define new_XPVHV() (void*)safemalloc(sizeof(XPVHV)) +#define del_XPVHV(p) free((char*)p) + +#define new_XPVCV() (void*)safemalloc(sizeof(XPVCV)) +#define del_XPVCV(p) free((char*)p) + +#define new_XPVGV() (void*)safemalloc(sizeof(XPVGV)) +#define del_XPVGV(p) free((char*)p) + +#define new_XPVBM() (void*)safemalloc(sizeof(XPVBM)) +#define del_XPVBM(p) free((char*)p) + +#define new_XPVFM() (void*)safemalloc(sizeof(XPVFM)) +#define del_XPVFM(p) free((char*)p) + +#define new_XPVIO() (void*)safemalloc(sizeof(XPVIO)) +#define del_XPVIO(p) free((char*)p) bool sv_upgrade(sv, mt) @@ -58,7 +605,7 @@ U32 mt; char* pv; U32 cur; U32 len; - I32 iv; + IV iv; double nv; MAGIC* magic; HV* stash; @@ -66,6 +613,9 @@ U32 mt; if (SvTYPE(sv) == mt) return TRUE; + if (mt < SVt_PVIV) + (void)SvOOK_off(sv); + switch (SvTYPE(sv)) { case SVt_NULL: pv = 0; @@ -76,50 +626,45 @@ U32 mt; magic = 0; stash = 0; break; - case SVt_REF: - sv_free((SV*)SvANY(sv)); - pv = 0; - cur = 0; - len = 0; - iv = SvANYI32(sv); - nv = (double)SvANYI32(sv); - SvNOK_only(sv); - magic = 0; - stash = 0; - if (mt == SVt_PV) - mt = SVt_PVIV; - break; case SVt_IV: pv = 0; cur = 0; len = 0; - iv = SvIV(sv); - nv = (double)SvIV(sv); + iv = SvIVX(sv); + nv = (double)SvIVX(sv); del_XIV(SvANY(sv)); magic = 0; stash = 0; - if (mt == SVt_PV) + if (mt == SVt_NV) + mt = SVt_PVNV; + else if (mt < SVt_PVIV) mt = SVt_PVIV; break; case SVt_NV: pv = 0; cur = 0; len = 0; - if (SvIOK(sv)) - iv = SvIV(sv); - else - iv = (I32)SvNV(sv); - nv = SvNV(sv); + nv = SvNVX(sv); + iv = I_32(nv); magic = 0; stash = 0; del_XNV(SvANY(sv)); SvANY(sv) = 0; - if (mt == SVt_PV || mt == SVt_PVIV) + if (mt < SVt_PVNV) mt = SVt_PVNV; break; + case SVt_RV: + pv = (char*)SvRV(sv); + cur = 0; + len = 0; + iv = (IV)pv; + nv = (double)(unsigned long)pv; + del_XRV(SvANY(sv)); + magic = 0; + stash = 0; + break; case SVt_PV: - nv = 0.0; - pv = SvPV(sv); + pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); iv = 0; @@ -127,99 +672,101 @@ U32 mt; magic = 0; stash = 0; del_XPV(SvANY(sv)); + if (mt <= SVt_IV) + mt = SVt_PVIV; + else if (mt == SVt_NV) + mt = SVt_PVNV; break; case SVt_PVIV: - nv = 0.0; - pv = SvPV(sv); + pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); - iv = SvIV(sv); + iv = SvIVX(sv); nv = 0.0; magic = 0; stash = 0; del_XPVIV(SvANY(sv)); break; case SVt_PVNV: - nv = SvNV(sv); - pv = SvPV(sv); + pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); - iv = SvIV(sv); - nv = SvNV(sv); + iv = SvIVX(sv); + nv = SvNVX(sv); magic = 0; stash = 0; del_XPVNV(SvANY(sv)); break; case SVt_PVMG: - pv = SvPV(sv); + pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); - iv = SvIV(sv); - nv = SvNV(sv); + iv = SvIVX(sv); + nv = SvNVX(sv); magic = SvMAGIC(sv); stash = SvSTASH(sv); del_XPVMG(SvANY(sv)); break; default: - fatal("Can't upgrade that kind of scalar"); + croak("Can't upgrade that kind of scalar"); } switch (mt) { case SVt_NULL: - fatal("Can't upgrade to undef"); - case SVt_REF: - SvIOK_on(sv); - break; + croak("Can't upgrade to undef"); case SVt_IV: SvANY(sv) = new_XIV(); - SvIV(sv) = iv; + SvIVX(sv) = iv; break; case SVt_NV: SvANY(sv) = new_XNV(); - SvIV(sv) = iv; - SvNV(sv) = nv; + SvNVX(sv) = nv; + break; + case SVt_RV: + SvANY(sv) = new_XRV(); + SvRV(sv) = (SV*)pv; break; case SVt_PV: SvANY(sv) = new_XPV(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; break; case SVt_PVIV: SvANY(sv) = new_XPVIV(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; + SvIVX(sv) = iv; if (SvNIOK(sv)) - SvIOK_on(sv); + (void)SvIOK_on(sv); SvNOK_off(sv); break; case SVt_PVNV: SvANY(sv) = new_XPVNV(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; break; case SVt_PVMG: SvANY(sv) = new_XPVMG(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; break; case SVt_PVLV: SvANY(sv) = new_XPVLV(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; LvTARGOFF(sv) = 0; @@ -229,81 +776,68 @@ U32 mt; break; case SVt_PVAV: SvANY(sv) = new_XPVAV(); - SvPV(sv) = pv; - SvCUR(sv) = cur; - SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + if (pv) + Safefree(pv); + SvPVX(sv) = 0; + AvMAX(sv) = -1; + AvFILL(sv) = -1; + SvIVX(sv) = 0; + SvNVX(sv) = 0.0; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; - AvMAGIC(sv) = 0; - AvARRAY(sv) = 0; AvALLOC(sv) = 0; - AvMAX(sv) = 0; - AvFILL(sv) = 0; AvARYLEN(sv) = 0; AvFLAGS(sv) = 0; break; case SVt_PVHV: SvANY(sv) = new_XPVHV(); - SvPV(sv) = pv; - SvCUR(sv) = cur; - SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + if (pv) + Safefree(pv); + SvPVX(sv) = 0; + HvFILL(sv) = 0; + HvMAX(sv) = 0; + HvKEYS(sv) = 0; + SvNVX(sv) = 0.0; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; - HvMAGIC(sv) = 0; - HvARRAY(sv) = 0; - HvMAX(sv) = 0; - HvDOSPLIT(sv) = 0; - HvFILL(sv) = 0; HvRITER(sv) = 0; HvEITER(sv) = 0; HvPMROOT(sv) = 0; HvNAME(sv) = 0; - HvDBM(sv) = 0; - HvCOEFFSIZE(sv) = 0; break; case SVt_PVCV: SvANY(sv) = new_XPVCV(); - SvPV(sv) = pv; + Zero(SvANY(sv), 1, XPVCV); + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; - CvSTASH(sv) = 0; - CvSTART(sv) = 0; - CvROOT(sv) = 0; - CvUSERSUB(sv) = 0; - CvUSERINDEX(sv) = 0; - CvFILEGV(sv) = 0; - CvDEPTH(sv) = 0; - CvPADLIST(sv) = 0; - CvDELETED(sv) = 0; break; case SVt_PVGV: SvANY(sv) = new_XPVGV(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; + GvGP(sv) = 0; GvNAME(sv) = 0; GvNAMELEN(sv) = 0; GvSTASH(sv) = 0; + GvFLAGS(sv) = 0; break; case SVt_PVBM: SvANY(sv) = new_XPVBM(); - SvPV(sv) = pv; + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; BmRARE(sv) = 0; @@ -312,127 +846,196 @@ U32 mt; break; case SVt_PVFM: SvANY(sv) = new_XPVFM(); - SvPV(sv) = pv; + Zero(SvANY(sv), 1, XPVFM); + SvPVX(sv) = pv; + SvCUR(sv) = cur; + SvLEN(sv) = len; + SvIVX(sv) = iv; + SvNVX(sv) = nv; + SvMAGIC(sv) = magic; + SvSTASH(sv) = stash; + break; + case SVt_PVIO: + SvANY(sv) = new_XPVIO(); + Zero(SvANY(sv), 1, XPVIO); + SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; - SvIV(sv) = iv; - SvNV(sv) = nv; + SvIVX(sv) = iv; + SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; - FmLINES(sv) = 0; + IoPAGE_LEN(sv) = 60; break; } - SvTYPE(sv) = mt; + SvFLAGS(sv) &= ~SVTYPEMASK; + SvFLAGS(sv) |= mt; return TRUE; } +#ifdef DEBUGGING char * sv_peek(sv) register SV *sv; { char *t = tokenbuf; - *t = '\0'; + int unref = 0; retry: if (!sv) { strcpy(t, "VOID"); - return tokenbuf; + goto finish; } else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') { strcpy(t, "WILD"); - return tokenbuf; + goto finish; } - else if (SvREFCNT(sv) == 0 && !SvREADONLY(sv)) { - strcpy(t, "UNREF"); - return tokenbuf; + else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) { + if (sv == &sv_undef) { + strcpy(t, "SV_UNDEF"); + if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT| + SVs_GMG|SVs_SMG|SVs_RMG)) && + SvREADONLY(sv)) + goto finish; + } + else if (sv == &sv_no) { + strcpy(t, "SV_NO"); + if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| + SVs_GMG|SVs_SMG|SVs_RMG)) && + !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| + SVp_POK|SVp_NOK)) && + SvCUR(sv) == 0 && + SvNVX(sv) == 0.0) + goto finish; + } + else { + strcpy(t, "SV_YES"); + if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| + SVs_GMG|SVs_SMG|SVs_RMG)) && + !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| + SVp_POK|SVp_NOK)) && + SvCUR(sv) == 1 && + SvPVX(sv) && *SvPVX(sv) == '1' && + SvNVX(sv) == 1.0) + goto finish; + } + t += strlen(t); + *t++ = ':'; } - else { - switch (SvTYPE(sv)) { - default: - strcpy(t,"FREED"); - return tokenbuf; - break; + else if (SvREFCNT(sv) == 0) { + *t++ = '('; + unref++; + } + if (SvROK(sv)) { + *t++ = '\\'; + if (t - tokenbuf + unref > 10) { + strcpy(tokenbuf + unref + 3,"..."); + goto finish; + } + sv = (SV*)SvRV(sv); + goto retry; + } + switch (SvTYPE(sv)) { + default: + strcpy(t,"FREED"); + goto finish; - case SVt_NULL: - return "UNDEF"; - case SVt_REF: - strcpy(t, "\\"); - t += strlen(t); - sv = (SV*)SvANY(sv); - goto retry; - case SVt_IV: - strcpy(t,"IV"); - break; - case SVt_NV: - strcpy(t,"NV"); - break; - case SVt_PV: - strcpy(t,"PV"); - break; - case SVt_PVIV: - strcpy(t,"PVIV"); - break; - case SVt_PVNV: - strcpy(t,"PVNV"); - break; - case SVt_PVMG: - strcpy(t,"PVMG"); - break; - case SVt_PVLV: - strcpy(t,"PVLV"); - break; - case SVt_PVAV: - strcpy(t,"AV"); - break; - case SVt_PVHV: - strcpy(t,"HV"); - break; - case SVt_PVCV: - strcpy(t,"CV"); - break; - case SVt_PVGV: - strcpy(t,"GV"); - break; - case SVt_PVBM: - strcpy(t,"BM"); - break; - case SVt_PVFM: - strcpy(t,"FM"); - break; - } + case SVt_NULL: + strcpy(t,"UNDEF"); + return tokenbuf; + case SVt_IV: + strcpy(t,"IV"); + break; + case SVt_NV: + strcpy(t,"NV"); + break; + case SVt_RV: + strcpy(t,"RV"); + break; + case SVt_PV: + strcpy(t,"PV"); + break; + case SVt_PVIV: + strcpy(t,"PVIV"); + break; + case SVt_PVNV: + strcpy(t,"PVNV"); + break; + case SVt_PVMG: + strcpy(t,"PVMG"); + break; + case SVt_PVLV: + strcpy(t,"PVLV"); + break; + case SVt_PVAV: + strcpy(t,"AV"); + break; + case SVt_PVHV: + strcpy(t,"HV"); + break; + case SVt_PVCV: + if (CvGV(sv)) + sprintf(t, "CV(%s)", GvNAME(CvGV(sv))); + else + strcpy(t, "CV()"); + goto finish; + case SVt_PVGV: + strcpy(t,"GV"); + break; + case SVt_PVBM: + strcpy(t,"BM"); + break; + case SVt_PVFM: + strcpy(t,"FM"); + break; + case SVt_PVIO: + strcpy(t,"IO"); + break; } t += strlen(t); - if (SvPOK(sv)) { - if (!SvPV(sv)) - return "(null)"; + if (SvPOKp(sv)) { + if (!SvPVX(sv)) + strcpy(t, "(null)"); if (SvOOK(sv)) - sprintf(t,"(%d+\"%0.127s\")",SvIV(sv),SvPV(sv)); + sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); else - sprintf(t,"(\"%0.127s\")",SvPV(sv)); + sprintf(t,"(\"%.127s\")",SvPVX(sv)); + } + else if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + sprintf(t,"(%g)",SvNVX(sv)); } - else if (SvNOK(sv)) - sprintf(t,"(%g)",SvNV(sv)); - else if (SvIOK(sv)) - sprintf(t,"(%ld)",(long)SvIV(sv)); + else if (SvIOKp(sv)) + sprintf(t,"(%ld)",(long)SvIVX(sv)); else strcpy(t,"()"); + + finish: + if (unref) { + t += strlen(t); + while (unref--) + *t++ = ')'; + *t = '\0'; + } return tokenbuf; } +#endif int sv_backoff(sv) register SV *sv; { assert(SvOOK(sv)); - if (SvIV(sv)) { - char *s = SvPV(sv); - SvLEN(sv) += SvIV(sv); - SvPV(sv) -= SvIV(sv); + if (SvIVX(sv)) { + char *s = SvPVX(sv); + SvLEN(sv) += SvIVX(sv); + SvPVX(sv) -= SvIVX(sv); SvIV_set(sv, 0); - Move(s, SvPV(sv), SvCUR(sv)+1, char); + Move(s, SvPVX(sv), SvCUR(sv)+1, char); } SvFLAGS(sv) &= ~SVf_OOK; + return 0; } char * @@ -446,28 +1049,28 @@ unsigned long newlen; { register char *s; -#ifdef MSDOS +#ifdef HAS_64K_LIMIT if (newlen >= 0x10000) { - fprintf(stderr, "Allocation too large: %lx\n", newlen); + PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen); my_exit(1); } -#endif /* MSDOS */ - if (SvREADONLY(sv)) - fatal(no_modify); +#endif /* HAS_64K_LIMIT */ + if (SvROK(sv)) + sv_unref(sv); if (SvTYPE(sv) < SVt_PV) { sv_upgrade(sv, SVt_PV); - s = SvPV(sv); + s = SvPVX(sv); } else if (SvOOK(sv)) { /* pv is offset? */ sv_backoff(sv); - s = SvPV(sv); + s = SvPVX(sv); if (newlen > SvLEN(sv)) newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ } else - s = SvPV(sv); + s = SvPVX(sv); if (newlen > SvLEN(sv)) { /* need more room? */ - if (SvLEN(sv)) + if (SvLEN(sv) && s) Renew(s,newlen,char); else New(703,s,newlen,char); @@ -480,17 +1083,54 @@ unsigned long newlen; void sv_setiv(sv,i) register SV *sv; -I32 i; +IV i; { - if (SvREADONLY(sv)) - fatal(no_modify); - if (SvTYPE(sv) < SVt_IV) + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + switch (SvTYPE(sv)) { + case SVt_NULL: sv_upgrade(sv, SVt_IV); - else if (SvTYPE(sv) == SVt_PV) + break; + case SVt_NV: + sv_upgrade(sv, SVt_PVNV); + break; + case SVt_RV: + case SVt_PV: sv_upgrade(sv, SVt_PVIV); - SvIV(sv) = i; - SvIOK_only(sv); /* validate number */ - SvTDOWN(sv); + break; + + case SVt_PVGV: + if (SvFAKE(sv)) { + sv_unglob(sv); + break; + } + /* FALL THROUGH */ + case SVt_PVAV: + case SVt_PVHV: + case SVt_PVCV: + case SVt_PVFM: + case SVt_PVIO: + croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), + op_name[op->op_type]); + } + (void)SvIOK_only(sv); /* validate number */ + SvIVX(sv) = i; + SvTAINT(sv); +} + +void +sv_setuv(sv,u) +register SV *sv; +UV u; +{ + if (u <= IV_MAX) + sv_setiv(sv, u); + else + sv_setnv(sv, (double)u); } void @@ -498,57 +1138,242 @@ sv_setnv(sv,num) register SV *sv; double num; { - if (SvREADONLY(sv)) - fatal(no_modify); - if (SvTYPE(sv) < SVt_NV) + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + switch (SvTYPE(sv)) { + case SVt_NULL: + case SVt_IV: sv_upgrade(sv, SVt_NV); - else if (SvTYPE(sv) < SVt_PVNV) + break; + case SVt_NV: + case SVt_RV: + case SVt_PV: + case SVt_PVIV: sv_upgrade(sv, SVt_PVNV); - else if (SvPOK(sv)) { - SvOOK_off(sv); + /* FALL THROUGH */ + case SVt_PVNV: + case SVt_PVMG: + case SVt_PVBM: + case SVt_PVLV: + if (SvOOK(sv)) + (void)SvOOK_off(sv); + break; + case SVt_PVGV: + if (SvFAKE(sv)) { + sv_unglob(sv); + break; + } + /* FALL THROUGH */ + case SVt_PVAV: + case SVt_PVHV: + case SVt_PVCV: + case SVt_PVFM: + case SVt_PVIO: + croak("Can't coerce %s to number in %s", sv_reftype(sv,0), + op_name[op->op_type]); } - SvNV(sv) = num; - SvNOK_only(sv); /* validate number */ - SvTDOWN(sv); + SvNVX(sv) = num; + (void)SvNOK_only(sv); /* validate number */ + SvTAINT(sv); } -I32 +static void +not_a_number(sv) +SV *sv; +{ + char tmpbuf[64]; + char *d = tmpbuf; + char *s; + int i; + + for (s = SvPVX(sv), i = 50; *s && i; s++,i--) { + int ch = *s & 0xFF; + if (ch & 128 && !isPRINT_LC(ch)) { + *d++ = 'M'; + *d++ = '-'; + ch &= 127; + } + if (ch == '\n') { + *d++ = '\\'; + *d++ = 'n'; + } + else if (ch == '\r') { + *d++ = '\\'; + *d++ = 'r'; + } + else if (ch == '\f') { + *d++ = '\\'; + *d++ = 'f'; + } + else if (ch == '\\') { + *d++ = '\\'; + *d++ = '\\'; + } + else if (isPRINT_LC(ch)) + *d++ = ch; + else { + *d++ = '^'; + *d++ = toCTRL(ch); + } + } + if (*s) { + *d++ = '.'; + *d++ = '.'; + *d++ = '.'; + } + *d = '\0'; + + if (op) + warn("Argument \"%s\" isn't numeric in %s", tmpbuf, + op_name[op->op_type]); + else + warn("Argument \"%s\" isn't numeric", tmpbuf); +} + +IV sv_2iv(sv) register SV *sv; { if (!sv) return 0; - if (SvREADONLY(sv)) { - if (SvNOK(sv)) - return (I32)SvNV(sv); - if (SvPOK(sv) && SvLEN(sv)) - return atof(SvPV(sv)); - if (dowarn) - warn("Use of uninitialized variable"); - return 0; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvIOKp(sv)) + return SvIVX(sv); + if (SvNOKp(sv)) { + if (SvNVX(sv) < 0.0) + return I_V(SvNVX(sv)); + else + return (IV) U_V(SvNVX(sv)); + } + if (SvPOKp(sv) && SvLEN(sv)) + return asIV(sv); + if (!SvROK(sv)) + return 0; } - if (SvTYPE(sv) < SVt_IV) { - if (SvTYPE(sv) == SVt_REF) - return (I32)SvANYI32(sv); + 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 (dowarn) + warn(warn_uninit); + return 0; + } + } + switch (SvTYPE(sv)) { + case SVt_NULL: sv_upgrade(sv, SVt_IV); - DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvIV(sv))); - return SvIV(sv); + return SvIVX(sv); + 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 { + if (dowarn && !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(sv) +register SV *sv; +{ + if (!sv) + return 0; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvIOKp(sv)) + return SvUVX(sv); + if (SvNOKp(sv)) + return U_V(SvNVX(sv)); + if (SvPOKp(sv) && SvLEN(sv)) + return asUV(sv); + if (!SvROK(sv)) + return 0; + } + if (SvTHINKFIRST(sv)) { + if (SvROK(sv)) { +#ifdef OVERLOAD + SV* tmpstr; + if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) + return SvUV(tmpstr); +#endif /* OVERLOAD */ + return (UV)SvRV(sv); + } + if (SvREADONLY(sv)) { + if (SvNOKp(sv)) { + return U_V(SvNVX(sv)); + } + if (SvPOKp(sv) && SvLEN(sv)) + return asUV(sv); + if (dowarn) + warn(warn_uninit); + return 0; + } } - else if (SvTYPE(sv) == SVt_PV) + switch (SvTYPE(sv)) { + case SVt_NULL: + sv_upgrade(sv, SVt_IV); + return SvUVX(sv); + case SVt_PV: sv_upgrade(sv, SVt_PVIV); - if (SvNOK(sv)) - SvIV(sv) = (I32)SvNV(sv); - else if (SvPOK(sv) && SvLEN(sv)) - SvIV(sv) = atol(SvPV(sv)); + break; + case SVt_NV: + sv_upgrade(sv, SVt_PVNV); + break; + } + if (SvNOKp(sv)) { + (void)SvIOK_on(sv); + SvUVX(sv) = U_V(SvNVX(sv)); + } + else if (SvPOKp(sv) && SvLEN(sv)) { + (void)SvIOK_on(sv); + SvUVX(sv) = asUV(sv); + } else { - if (dowarn) - warn("Use of uninitialized variable"); - SvUPGRADE(sv, SVt_IV); - SvIV(sv) = 0; + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0; } - SvIOK_on(sv); - DEBUG_c((stderr,"0x%lx 2iv(%d)\n",sv,SvIV(sv))); - return SvIV(sv); + DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n", + (unsigned long)sv,SvUVX(sv))); + return SvUVX(sv); } double @@ -557,274 +1382,689 @@ register SV *sv; { if (!sv) return 0.0; - if (SvREADONLY(sv)) { - if (SvPOK(sv) && SvLEN(sv)) - return atof(SvPV(sv)); - if (dowarn) - warn("Use of uninitialized variable"); - return 0.0; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvNOKp(sv)) + return SvNVX(sv); + if (SvPOKp(sv) && SvLEN(sv)) { + if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + return atof(SvPVX(sv)); + } + if (SvIOKp(sv)) + return (double)SvIVX(sv); + if (!SvROK(sv)) { + return 0; + } + } + if (SvTHINKFIRST(sv)) { + if (SvROK(sv)) { +#ifdef OVERLOAD + SV* tmpstr; + if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) + return SvNV(tmpstr); +#endif /* OVERLOAD */ + return (double)(unsigned long)SvRV(sv); + } + if (SvREADONLY(sv)) { + if (SvPOKp(sv) && SvLEN(sv)) { + if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + return atof(SvPVX(sv)); + } + if (SvIOKp(sv)) + return (double)SvIVX(sv); + if (dowarn) + warn(warn_uninit); + return 0.0; + } } if (SvTYPE(sv) < SVt_NV) { - if (SvTYPE(sv) == SVt_REF) - return (double)SvANYI32(sv); - sv_upgrade(sv, SVt_NV); - DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvNV(sv))); - return SvNV(sv); + if (SvTYPE(sv) == SVt_IV) + sv_upgrade(sv, SVt_PVNV); + else + sv_upgrade(sv, SVt_NV); + DEBUG_c(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 (SvPOK(sv) && SvLEN(sv)) - SvNV(sv) = atof(SvPV(sv)); - else if (SvIOK(sv)) - SvNV(sv) = (double)SvIV(sv); + if (SvIOKp(sv) && + (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) + { + SvNVX(sv) = (double)SvIVX(sv); + } + else if (SvPOKp(sv) && SvLEN(sv)) { + if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + SvNVX(sv) = atof(SvPVX(sv)); + } else { - if (dowarn) - warn("Use of uninitialized variable"); - SvNV(sv) = 0.0; + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0.0; } SvNOK_on(sv); - DEBUG_c((stderr,"0x%lx 2nv(%g)\n",sv,SvNV(sv))); - return SvNV(sv); + DEBUG_c(SET_NUMERIC_STANDARD()); + DEBUG_c(PerlIO_printf(Perl_debug_log, + "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); + return SvNVX(sv); +} + +static IV +asIV(sv) +SV *sv; +{ + I32 numtype = looks_like_number(sv); + double d; + + if (numtype == 1) + return atol(SvPVX(sv)); + if (!numtype && dowarn) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + d = atof(SvPVX(sv)); + if (d < 0.0) + return I_V(d); + else + return (IV) U_V(d); +} + +static UV +asUV(sv) +SV *sv; +{ + I32 numtype = looks_like_number(sv); + + if (numtype == 1) + return atol(SvPVX(sv)); + if (!numtype && dowarn) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + return U_V(atof(SvPVX(sv))); +} + +I32 +looks_like_number(sv) +SV *sv; +{ + register char *s; + register char *send; + register char *sbegin; + I32 numtype = 1; + 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 >= send) + return 0; + if (*s == '+' || *s == '-') + s++; + while (isDIGIT(*s)) + s++; + if (s == send) + return numtype; + if (*s == '.') { + numtype = 1; + s++; + } + else if (s == SvPVX(sv)) + return 0; + while (isDIGIT(*s)) + s++; + if (s == send) + return numtype; + if (*s == 'e' || *s == 'E') { + numtype = 2; + s++; + if (*s == '+' || *s == '-') + s++; + while (isDIGIT(*s)) + s++; + } + while (isSPACE(*s)) + s++; + if (s >= send) + return numtype; + if (len == 10 && memEQ(sbegin, "0 but true", 10)) + return 1; + return 0; } char * -sv_2pv(sv) +sv_2pv(sv, lp) register SV *sv; +STRLEN *lp; { register char *s; int olderrno; - if (!sv) + if (!sv) { + *lp = 0; return ""; - if (SvTYPE(sv) == SVt_REF) { - sv = (SV*)SvANY(sv); - if (!sv) - return ""; - switch (SvTYPE(sv)) { - case SVt_NULL: s = "an undefined value"; break; - case SVt_REF: s = "a reference"; break; - case SVt_IV: s = "an integer value"; break; - case SVt_NV: s = "a numeric value"; break; - case SVt_PV: s = "a string value"; break; - case SVt_PVIV: s = "a string+integer value"; break; - case SVt_PVNV: s = "a scalar value"; break; - case SVt_PVMG: s = "a magic value"; break; - case SVt_PVLV: s = "an lvalue"; break; - case SVt_PVAV: s = "an array value"; break; - case SVt_PVHV: s = "an associative array value"; break; - case SVt_PVCV: s = "a code value"; break; - case SVt_PVGV: s = "a glob value"; break; - case SVt_PVBM: s = "a search string"; break; - case SVt_PVFM: s = "a formatline"; break; - default: s = "something weird"; break; - } - sprintf(tokenbuf,"", s, (unsigned long)sv); - return tokenbuf; } - if (SvREADONLY(sv)) { - if (SvIOK(sv)) { - (void)sprintf(tokenbuf,"%ld",SvIV(sv)); - return tokenbuf; + if (SvGMAGICAL(sv)) { + mg_get(sv); + if (SvPOKp(sv)) { + *lp = SvCUR(sv); + return SvPVX(sv); } - if (SvNOK(sv)) { - (void)sprintf(tokenbuf,"%.20g",SvNV(sv)); - return tokenbuf; + if (SvIOKp(sv)) { + (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); + goto tokensave; + } + if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); + goto tokensave; + } + if (!SvROK(sv)) { + *lp = 0; + return ""; + } + } + if (SvTHINKFIRST(sv)) { + if (SvROK(sv)) { +#ifdef OVERLOAD + SV* tmpstr; + if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) + return SvPV(tmpstr,*lp); +#endif /* OVERLOAD */ + sv = (SV*)SvRV(sv); + if (!sv) + s = "NULLREF"; + else { + switch (SvTYPE(sv)) { + case SVt_NULL: + case SVt_IV: + case SVt_NV: + case SVt_RV: + case SVt_PV: + case SVt_PVIV: + case SVt_PVNV: + case SVt_PVBM: + case SVt_PVMG: s = "SCALAR"; break; + case SVt_PVLV: s = "LVALUE"; break; + case SVt_PVAV: s = "ARRAY"; break; + case SVt_PVHV: s = "HASH"; break; + case SVt_PVCV: s = "CODE"; break; + case SVt_PVGV: s = "GLOB"; break; + case SVt_PVFM: s = "FORMATLINE"; break; + case SVt_PVIO: s = "IO"; break; + default: s = "UNKNOWN"; break; + } + if (SvOBJECT(sv)) + sprintf(tokenbuf, "%s=%s(0x%lx)", + HvNAME(SvSTASH(sv)), s, (unsigned long)sv); + else + sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv); + goto tokensaveref; + } + *lp = strlen(s); + return s; + } + if (SvREADONLY(sv)) { + if (SvNOKp(sv)) { + SET_NUMERIC_STANDARD(); + Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); + goto tokensave; + } + if (SvIOKp(sv)) { + (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); + goto tokensave; + } + if (dowarn) + warn(warn_uninit); + *lp = 0; + return ""; } - if (dowarn) - warn("Use of uninitialized variable"); - return ""; } if (!SvUPGRADE(sv, SVt_PV)) return 0; - if (SvNOK(sv)) { + if (SvNOKp(sv)) { if (SvTYPE(sv) < SVt_PVNV) sv_upgrade(sv, SVt_PVNV); SvGROW(sv, 28); - s = SvPV(sv); + s = SvPVX(sv); olderrno = errno; /* some Xenix systems wipe out errno here */ -#if defined(scs) && defined(ns32000) - gcvt(SvNV(sv),20,s); -#else #ifdef apollo - if (SvNV(sv) == 0.0) + if (SvNVX(sv) == 0.0) (void)strcpy(s,"0"); else #endif /*apollo*/ - (void)sprintf(s,"%.20g",SvNV(sv)); -#endif /*scs*/ + { + 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--; #endif } - else if (SvIOK(sv)) { + else if (SvIOKp(sv)) { if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv, SVt_PVIV); SvGROW(sv, 11); - s = SvPV(sv); + s = SvPVX(sv); olderrno = errno; /* some Xenix systems wipe out errno here */ - (void)sprintf(s,"%ld",SvIV(sv)); + (void)sprintf(s,"%ld",(long)SvIVX(sv)); errno = olderrno; while (*s) s++; } else { - if (dowarn) - warn("Use of uninitialized variable"); - sv_grow(sv, 1); - s = SvPV(sv); + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + *lp = 0; + return ""; } *s = '\0'; - SvCUR_set(sv, s - SvPV(sv)); + *lp = s - SvPVX(sv); + SvCUR_set(sv, *lp); SvPOK_on(sv); - DEBUG_c((stderr,"0x%lx 2pv(%s)\n",sv,SvPV(sv))); - return SvPV(sv); -} + DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv))); + return SvPVX(sv); -/* Note: sv_setsv() should not be called with a source string that needs - * be reused, since it may destroy the source string if it is marked - * as temporary. - */ + tokensave: + if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ + /* Sneaky stuff here */ -void -sv_setsv(dstr,sstr) -SV *dstr; -register SV *sstr; + tokensaveref: + sv = sv_newmortal(); + *lp = strlen(tokenbuf); + sv_setpvn(sv, tokenbuf, *lp); + return SvPVX(sv); + } + else { + STRLEN len; + +#ifdef FIXNEGATIVEZERO + if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2]) + strcpy(tokenbuf,"0"); +#endif + (void)SvUPGRADE(sv, SVt_PV); + len = *lp = strlen(tokenbuf); + s = SvGROW(sv, len + 1); + SvCUR_set(sv, len); + (void)strcpy(s, tokenbuf); + SvPOKp_on(sv); + return s; + } +} + +/* This function is only called on magical items */ +bool +sv_2bool(sv) +register SV *sv; { - if (sstr == dstr) - return; - if (SvREADONLY(dstr)) - fatal(no_modify); - if (!sstr) - sstr = &sv_undef; + if (SvGMAGICAL(sv)) + mg_get(sv); - if (SvTYPE(dstr) < SvTYPE(sstr)) - sv_upgrade(dstr, SvTYPE(sstr)); - else if (SvTYPE(dstr) == SVt_PV && SvTYPE(sstr) <= SVt_NV) { - if (SvTYPE(sstr) <= SVt_IV) - sv_upgrade(dstr, SVt_PVIV); /* handle discontinuities */ - else - sv_upgrade(dstr, SVt_PVNV); + if (!SvOK(sv)) + return 0; + if (SvROK(sv)) { +#ifdef OVERLOAD + { + SV* tmpsv; + if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) + return SvTRUE(tmpsv); + } +#endif /* OVERLOAD */ + return SvRV(sv) != 0; } - else if (SvTYPE(dstr) == SVt_PVIV && SvTYPE(sstr) == SVt_NV) - sv_upgrade(dstr, SVt_PVNV); - - switch (SvTYPE(sstr)) { - case SVt_NULL: - if (SvTYPE(dstr) == SVt_REF) { - sv_free((SV*)SvANY(dstr)); - SvANY(dstr) = 0; - SvTYPE(dstr) = SVt_NULL; - } + if (SvPOKp(sv)) { + register XPV* Xpv; + if ((Xpv = (XPV*)SvANY(sv)) && + (*Xpv->xpv_pv > '0' || + Xpv->xpv_cur > 1 || + (Xpv->xpv_cur && *Xpv->xpv_pv != '0'))) + return 1; else - SvOK_off(dstr); - return; - case SVt_REF: - SvTUP(sstr); - if (SvTYPE(dstr) == SVt_REF) { - SvANY(dstr) = (void*)sv_ref((SV*)SvANY(sstr)); - } + return 0; + } + else { + if (SvIOKp(sv)) + return SvIVX(sv) != 0; else { - if (SvMAGICAL(dstr)) - fatal("Can't assign a reference to a magical variable"); - sv_clear(dstr); - SvTYPE(dstr) = SVt_REF; - SvANY(dstr) = (void*)sv_ref((SV*)SvANY(sstr)); - SvOK_off(dstr); - } - SvTDOWN(sstr); + 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(dstr,sstr) +SV *dstr; +register SV *sstr; +{ + register U32 sflags; + register int dtype; + register int stype; + + if (sstr == dstr) + return; + if (SvTHINKFIRST(dstr)) { + if (SvREADONLY(dstr) && curcop != &compiling) + croak(no_modify); + if (SvROK(dstr)) + sv_unref(dstr); + } + if (!sstr) + sstr = &sv_undef; + stype = SvTYPE(sstr); + dtype = SvTYPE(dstr); + + if (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: + (void)SvOK_off(dstr); return; + case SVt_IV: + if (dtype != SVt_IV && dtype < SVt_PVIV) { + if (dtype < SVt_IV) + sv_upgrade(dstr, SVt_IV); + else if (dtype == SVt_NV) + sv_upgrade(dstr, SVt_PVNV); + else + sv_upgrade(dstr, SVt_PVIV); + } + break; + case SVt_NV: + if (dtype != SVt_NV && dtype < SVt_PVNV) { + if (dtype < SVt_NV) + sv_upgrade(dstr, SVt_NV); + else + sv_upgrade(dstr, SVt_PVNV); + } + break; + case SVt_RV: + if (dtype < SVt_RV) + sv_upgrade(dstr, SVt_RV); + else if (dtype == SVt_PVGV && + SvTYPE(SvRV(sstr)) == SVt_PVGV) { + sstr = SvRV(sstr); + if (sstr == dstr) { + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_on(dstr); + GvMULTI_on(dstr); + return; + } + goto glob_assign; + } + break; + case SVt_PV: + if (dtype < SVt_PV) + sv_upgrade(dstr, SVt_PV); + break; + case SVt_PVIV: + if (dtype < SVt_PVIV) + sv_upgrade(dstr, SVt_PVIV); + break; + case SVt_PVNV: + if (dtype < SVt_PVNV) + sv_upgrade(dstr, SVt_PVNV); + break; + + case SVt_PVLV: + sv_upgrade(dstr, SVt_PVLV); + break; + + case SVt_PVAV: + case SVt_PVHV: + case SVt_PVCV: + case SVt_PVIO: + if (op) + croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), + op_name[op->op_type]); + else + croak("Bizarre copy of %s", sv_reftype(sstr, 0)); + break; + case SVt_PVGV: - SvTUP(sstr); - if (SvTYPE(dstr) == SVt_PVGV) { - SvOK_off(dstr); - if (!GvAV(sstr)) - gv_AVadd(sstr); - if (!GvHV(sstr)) - gv_HVadd(sstr); - if (!GvIO(sstr)) - GvIO(sstr) = newIO(); - if (GvGP(dstr)) - gp_free(dstr); + if (dtype <= SVt_PVGV) { + glob_assign: + if (dtype != SVt_PVGV) { + char *name = GvNAME(sstr); + STRLEN len = GvNAMELEN(sstr); + sv_upgrade(dstr, SVt_PVGV); + sv_magic(dstr, dstr, '*', name, len); + GvSTASH(dstr) = GvSTASH(sstr); + GvNAME(dstr) = savepvn(name, len); + GvNAMELEN(dstr) = len; + SvFAKE_on(dstr); /* can coerce to non-glob */ + } + (void)SvOK_off(dstr); + GvINTRO_off(dstr); /* one-shot flag */ + gp_free((GV*)dstr); GvGP(dstr) = gp_ref(GvGP(sstr)); - SvTDOWN(sstr); + SvTAINT(dstr); + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_on(dstr); + GvMULTI_on(dstr); return; } /* FALL THROUGH */ default: - if (SvMAGICAL(sstr)) + if (dtype < stype) + sv_upgrade(dstr, stype); + if (SvGMAGICAL(sstr)) mg_get(sstr); - /* XXX */ - break; } - SvPRIVATE(dstr) = SvPRIVATE(sstr); - SvSTORAGE(dstr) = SvSTORAGE(sstr); + sflags = SvFLAGS(sstr); - if (SvPOK(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); - SvTUP(sstr); + if (intro) { + GP *gp; + GvGP(dstr)->gp_refcnt--; + GvINTRO_off(dstr); /* one-shot flag */ + Newz(602,gp, 1, GP); + GvGP(dstr) = gp; + GvREFCNT(dstr) = 1; + GvSV(dstr) = NEWSV(72,0); + GvLINE(dstr) = curcop->cop_line; + GvEGV(dstr) = (GV*)dstr; + } + GvMULTI_on(dstr); + switch (SvTYPE(sref)) { + case SVt_PVAV: + if (intro) + SAVESPTR(GvAV(dstr)); + else + dref = (SV*)GvAV(dstr); + GvAV(dstr) = (AV*)sref; + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_AV_on(dstr); + break; + case SVt_PVHV: + if (intro) + SAVESPTR(GvHV(dstr)); + else + dref = (SV*)GvHV(dstr); + GvHV(dstr) = (HV*)sref; + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_HV_on(dstr); + break; + case SVt_PVCV: + if (intro) + SAVESPTR(GvCV(dstr)); + else { + CV* cv = GvCV(dstr); + if (cv) { + dref = (SV*)cv; + if (dowarn && sref != dref && + !GvCVGEN((GV*)dstr) && + (CvROOT(cv) || CvXSUB(cv)) ) + warn("Subroutine %s redefined", + GvENAME((GV*)dstr)); + SvFAKE_on(cv); + } + } + if (GvCV(dstr) != (CV*)sref) { + GvCV(dstr) = (CV*)sref; + GvASSUMECV_on(dstr); + } + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_CV_on(dstr); + break; + case SVt_PVIO: + if (intro) + SAVESPTR(GvIOp(dstr)); + else + dref = (SV*)GvIOp(dstr); + GvIOp(dstr) = (IO*)sref; + break; + default: + if (intro) + SAVESPTR(GvSV(dstr)); + else + dref = (SV*)GvSV(dstr); + GvSV(dstr) = sref; + if (curcop->cop_stash != GvSTASH(dstr)) + GvIMPORTED_SV_on(dstr); + break; + } + if (dref) + SvREFCNT_dec(dref); + if (intro) + SAVEFREESV(sref); + SvTAINT(dstr); + return; + } + if (SvPVX(dstr)) { + (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 SvPV(dstr) - * has to be allocated and SvPV(sstr) has to be freed. + * It might even be a win on short strings if SvPVX(dstr) + * has to be allocated and SvPVX(sstr) has to be freed. */ - if (SvTEMP(sstr)) { /* slated for free anyway? */ - if (SvPOK(dstr)) { - SvOOK_off(dstr); - Safefree(SvPV(dstr)); + if (SvTEMP(sstr) && /* slated for free anyway? */ + !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ + { + if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ + if (SvOOK(dstr)) { + SvFLAGS(dstr) &= ~SVf_OOK; + Safefree(SvPVX(dstr) - SvIVX(dstr)); + } + else + Safefree(SvPVX(dstr)); } - SvPV_set(dstr, SvPV(sstr)); + (void)SvPOK_only(dstr); + SvPV_set(dstr, SvPVX(sstr)); SvLEN_set(dstr, SvLEN(sstr)); SvCUR_set(dstr, SvCUR(sstr)); - SvTYPE(dstr) = SvTYPE(sstr); - SvPOK_only(dstr); SvTEMP_off(dstr); + (void)SvOK_off(sstr); SvPV_set(sstr, Nullch); SvLEN_set(sstr, 0); - SvPOK_off(sstr); /* wipe out any weird flags */ - SvTYPE(sstr) = 0; /* so sstr frees uneventfully */ + SvCUR_set(sstr, 0); + SvTEMP_off(sstr); } else { /* have to copy actual string */ - if (SvPV(dstr)) { /* XXX ck type */ - SvOOK_off(dstr); - } - sv_setpvn(dstr,SvPV(sstr),SvCUR(sstr)); + STRLEN len = SvCUR(sstr); + + SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ + Move(SvPVX(sstr),SvPVX(dstr),len,char); + SvCUR_set(dstr, len); + *SvEND(dstr) = '\0'; + (void)SvPOK_only(dstr); } /*SUPPRESS 560*/ - if (SvNOK(sstr)) { + if (sflags & SVp_NOK) { SvNOK_on(dstr); - SvNV(dstr) = SvNV(sstr); + SvNVX(dstr) = SvNVX(sstr); } - if (SvIOK(sstr)) { - SvIOK_on(dstr); - SvIV(dstr) = SvIV(sstr); + if (sflags & SVp_IOK) { + (void)SvIOK_on(dstr); + SvIVX(dstr) = SvIVX(sstr); } } - else if (SvNOK(sstr)) { - SvTUP(sstr); - SvNV(dstr) = SvNV(sstr); - SvNOK_only(dstr); + else if (sflags & SVp_NOK) { + SvNVX(dstr) = SvNVX(sstr); + (void)SvNOK_only(dstr); if (SvIOK(sstr)) { - SvIOK_on(dstr); - SvIV(dstr) = SvIV(sstr); + (void)SvIOK_on(dstr); + SvIVX(dstr) = SvIVX(sstr); } } - else if (SvIOK(sstr)) { - SvTUP(sstr); - SvIOK_only(dstr); - SvIV(dstr) = SvIV(sstr); + else if (sflags & SVp_IOK) { + (void)SvIOK_only(dstr); + SvIVX(dstr) = SvIVX(sstr); } else { - SvTUP(sstr); - SvOK_off(dstr); + (void)SvOK_off(dstr); } - SvTDOWN(dstr); + SvTAINT(dstr); } void @@ -833,15 +2073,30 @@ register SV *sv; register char *ptr; register STRLEN len; { - if (!SvUPGRADE(sv, SVt_PV)) + assert(len >= 0); /* STRLEN is probably unsigned, so this may + elicit a warning, but it won't hurt. */ + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + if (!ptr) { + (void)SvOK_off(sv); + return; + } + if (SvTYPE(sv) >= SVt_PV) { + if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) + sv_unglob(sv); + } + else if (!sv_upgrade(sv, SVt_PV)) return; SvGROW(sv, len + 1); - if (ptr) - Move(ptr,SvPV(sv),len,char); + Move(ptr,SvPVX(sv),len,char); SvCUR_set(sv, len); *SvEND(sv) = '\0'; - SvPOK_only(sv); /* validate pointer */ - SvTDOWN(sv); + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); } void @@ -851,18 +2106,57 @@ register char *ptr; { register STRLEN len; - if (SvREADONLY(sv)) - fatal(no_modify); - if (!ptr) - ptr = ""; + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + if (!ptr) { + (void)SvOK_off(sv); + return; + } len = strlen(ptr); - if (!SvUPGRADE(sv, SVt_PV)) + if (SvTYPE(sv) >= SVt_PV) { + if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) + sv_unglob(sv); + } + else if (!sv_upgrade(sv, SVt_PV)) return; SvGROW(sv, len + 1); - Move(ptr,SvPV(sv),len+1,char); + Move(ptr,SvPVX(sv),len+1,char); + SvCUR_set(sv, len); + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); +} + +void +sv_usepvn(sv,ptr,len) +register SV *sv; +register char *ptr; +register STRLEN len; +{ + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + if (!SvUPGRADE(sv, SVt_PV)) + return; + if (!ptr) { + (void)SvOK_off(sv); + return; + } + if (SvPVX(sv)) + Safefree(SvPVX(sv)); + Renew(ptr, len+1, char); + SvPVX(sv) = ptr; SvCUR_set(sv, len); - SvPOK_only(sv); /* validate pointer */ - SvTDOWN(sv); + SvLEN_set(sv, len+1); + *SvEND(sv) = '\0'; + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); } void @@ -872,23 +2166,27 @@ register char *ptr; { register STRLEN delta; - if (!ptr || !SvPOK(sv)) + if (!ptr || !SvPOKp(sv)) return; - if (SvREADONLY(sv)) - fatal(no_modify); + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv,SVt_PVIV); if (!SvOOK(sv)) { - SvIV(sv) = 0; + SvIVX(sv) = 0; SvFLAGS(sv) |= SVf_OOK; } - SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK); - delta = ptr - SvPV(sv); + SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK); + delta = ptr - SvPVX(sv); SvLEN(sv) -= delta; SvCUR(sv) -= delta; - SvPV(sv) += delta; - SvIV(sv) += delta; + SvPVX(sv) += delta; + SvIVX(sv) += delta; } void @@ -897,16 +2195,18 @@ register SV *sv; register char *ptr; register STRLEN len; { - if (SvREADONLY(sv)) - fatal(no_modify); - if (!(SvPOK(sv))) - (void)sv_2pv(sv); - SvGROW(sv, SvCUR(sv) + len + 1); - Move(ptr,SvPV(sv)+SvCUR(sv),len,char); + STRLEN tlen; + char *junk; + + junk = SvPV_force(sv, tlen); + SvGROW(sv, tlen + len + 1); + if (ptr == junk) + ptr = SvPVX(sv); + Move(ptr,SvPVX(sv)+tlen,len,char); SvCUR(sv) += len; *SvEND(sv) = '\0'; - SvPOK_only(sv); /* validate pointer */ - SvTDOWN(sv); + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); } void @@ -915,14 +2215,11 @@ SV *dstr; register SV *sstr; { char *s; + STRLEN len; if (!sstr) return; - if (s = SvPVn(sstr)) { - if (SvPOK(sstr)) - sv_catpvn(dstr,s,SvCUR(sstr)); - else - sv_catpv(dstr,s); - } + if (s = SvPV(sstr, len)) + sv_catpvn(dstr,s,len); } void @@ -931,58 +2228,20 @@ register SV *sv; register char *ptr; { register STRLEN len; + STRLEN tlen; + char *junk; - if (SvREADONLY(sv)) - fatal(no_modify); if (!ptr) return; - if (!(SvPOK(sv))) - (void)sv_2pv(sv); + junk = SvPV_force(sv, tlen); len = strlen(ptr); - SvGROW(sv, SvCUR(sv) + len + 1); - Move(ptr,SvPV(sv)+SvCUR(sv),len+1,char); + SvGROW(sv, tlen + len + 1); + if (ptr == junk) + ptr = SvPVX(sv); + Move(ptr,SvPVX(sv)+tlen,len+1,char); SvCUR(sv) += len; - SvPOK_only(sv); /* validate pointer */ - SvTDOWN(sv); -} - -char * -sv_append_till(sv,from,fromend,delim,keeplist) -register SV *sv; -register char *from; -register char *fromend; -register I32 delim; -char *keeplist; -{ - register char *to; - register STRLEN len; - - if (SvREADONLY(sv)) - fatal(no_modify); - if (!from) - return Nullch; - len = fromend - from; - if (!SvUPGRADE(sv, SVt_PV)) - return 0; - SvGROW(sv, SvCUR(sv) + len + 1); - SvPOK_only(sv); /* validate pointer */ - to = SvPV(sv)+SvCUR(sv); - for (; from < fromend; from++,to++) { - if (*from == '\\' && from+1 < fromend && delim != '\\') { - if (!keeplist) - *to++ = *from++; - else if (from[1] && index(keeplist,from[1])) - *to++ = *from++; - else - from++; - } - else if (*from == delim) - break; - *to = *from; - } - *to = '\0'; - SvCUR_set(sv, to - SvPV(sv)); - return from; + (void)SvPOK_only(sv); /* validate pointer */ + SvTAINT(sv); } SV * @@ -996,9 +2255,10 @@ STRLEN len; { register SV *sv; - sv = (SV*)new_SV(); - Zero(sv, 1, SV); - SvREFCNT(sv)++; + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; if (len) { sv_upgrade(sv, SVt_PV); SvGROW(sv, len + 1); @@ -1006,58 +2266,117 @@ STRLEN len; return sv; } +/* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */ + void sv_magic(sv, obj, how, name, namlen) register SV *sv; SV *obj; -char how; +int how; char *name; -STRLEN namlen; +I32 namlen; { MAGIC* mg; - if (SvREADONLY(sv)) - fatal(no_modify); - if (!SvUPGRADE(sv, SVt_PVMG)) - return; + if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how)) + croak(no_modify); + if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { + if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { + if (how == 't') + mg->mg_len |= 1; + return; + } + } + else { + if (!SvUPGRADE(sv, SVt_PVMG)) + return; + } Newz(702,mg, 1, MAGIC); mg->mg_moremagic = SvMAGIC(sv); - SvMAGICAL_on(sv); + SvMAGIC(sv) = mg; - mg->mg_obj = obj; - mg->mg_type = how; - if (name) { - mg->mg_ptr = nsavestr(name, namlen); - mg->mg_len = namlen; + if (!obj || obj == sv || how == '#') + mg->mg_obj = obj; + else { + mg->mg_obj = SvREFCNT_inc(obj); + mg->mg_flags |= MGf_REFCOUNTED; } + mg->mg_type = how; + mg->mg_len = namlen; + if (name) + 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 'D': - mg->mg_virtual = &vtbl_dbm; - break; - case 'd': - mg->mg_virtual = &vtbl_dbmelem; - 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_LOCALE_COLLATE + case 'o': + mg->mg_virtual = &vtbl_collxfrm; + break; +#endif /* USE_LOCALE_COLLATE */ + case 'P': + mg->mg_virtual = &vtbl_pack; + break; + case 'p': + case 'q': + mg->mg_virtual = &vtbl_packelem; + break; case 'S': 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; @@ -1073,9 +2392,57 @@ STRLEN namlen; case '#': mg->mg_virtual = &vtbl_arylen; break; + case '.': + mg->mg_virtual = &vtbl_pos; + break; + case '~': /* Reserved for use by extensions not perl internals. */ + /* Useful for attaching extension internal data to perl vars. */ + /* Note that multiple extensions may clash if magical scalars */ + /* etc holding private data from one are passed to another. */ + SvRMAGICAL_on(sv); + break; default: - fatal("Don't know how to handle magic of type '%c'", how); + croak("Don't know how to handle magic of type '%c'", how); + } + mg_magical(sv); + if (SvGMAGICAL(sv)) + SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); +} + +int +sv_unmagic(sv, type) +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) + (*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 @@ -1092,16 +2459,13 @@ STRLEN littlelen; register char *bigend; register I32 i; - if (SvREADONLY(bigstr)) - fatal(no_modify); - SvPOK_only(bigstr); + if (!bigstr) + croak("Can't modify non-existent substring"); + SvPV_force(bigstr, na); i = littlelen - len; if (i > 0) { /* string might grow */ - if (!SvUPGRADE(bigstr, SVt_PV)) - return; - SvGROW(bigstr, SvCUR(bigstr) + i + 1); - big = SvPV(bigstr); + big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); mid = big + offset + len; midend = bigend = big + SvCUR(bigstr); bigend += i; @@ -1114,18 +2478,18 @@ STRLEN littlelen; return; } else if (i == 0) { - Move(little,SvPV(bigstr)+offset,len,char); + Move(little,SvPVX(bigstr)+offset,len,char); SvSETMAGIC(bigstr); return; } - big = SvPV(bigstr); + big = SvPVX(bigstr); mid = big + offset; midend = mid + len; bigend = big + SvCUR(bigstr); if (midend > bigend) - fatal("panic: sv_insert"); + croak("panic: sv_insert"); if (mid - big > bigend - midend) { /* faster to shorten from end */ if (littlelen) { @@ -1170,15 +2534,30 @@ register SV *sv; register SV *nsv; { U32 refcnt = SvREFCNT(sv); - if (SvREADONLY(sv)) - fatal(no_modify); + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } if (SvREFCNT(nsv) != 1) warn("Reference miscount in sv_replace()"); + if (SvMAGICAL(sv)) { + 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); StructCopy(nsv,sv,SV); SvREFCNT(sv) = refcnt; - Safefree(nsv); + SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ + del_SV(nsv); } void @@ -1188,59 +2567,113 @@ register SV *sv; assert(sv); assert(SvREFCNT(sv) == 0); + if (SvOBJECT(sv)) { + dSP; + GV* destructor; + + if (defstash) { /* Still have a symbol table? */ + destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); + + ENTER; + SAVEFREESV(SvSTASH(sv)); + if (destructor && GvCV(destructor)) { + SV ref; + + Zero(&ref, 1, SV); + sv_upgrade(&ref, SVt_RV); + SvRV(&ref) = SvREFCNT_inc(sv); + SvROK_on(&ref); + + EXTEND(SP, 2); + PUSHMARK(SP); + PUSHs(&ref); + PUTBACK; + perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); + del_XRV(SvANY(&ref)); + SvREFCNT(sv)--; + } + LEAVE; + } + else + SvREFCNT_dec(SvSTASH(sv)); + if (SvOBJECT(sv)) { + SvOBJECT_off(sv); /* Curse the object. */ + if (SvTYPE(sv) != SVt_PVIO) + --sv_objcount; /* XXX Might want something more general */ + } + if (SvREFCNT(sv)) { + SV *ret; + if ( perldb + && (ret = perl_get_sv("DB::ret", FALSE)) + && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) { + /* Debugger is prone to dangling references. */ + SvRV(ret) = 0; + SvROK_off(ret); + SvREFCNT(sv) = 0; + } else { + croak("panic: dangling references in DESTROY"); + } + } + } + if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) + mg_free(sv); switch (SvTYPE(sv)) { - case SVt_PVFM: - goto freemagic; + case SVt_PVIO: + io_close((IO*)sv); + Safefree(IoTOP_NAME(sv)); + Safefree(IoFMT_NAME(sv)); + Safefree(IoBOTTOM_NAME(sv)); + /* FALL THROUGH */ case SVt_PVBM: - goto freemagic; - case SVt_PVGV: - gp_free(sv); - goto freemagic; + goto freescalar; case SVt_PVCV: - op_free(CvSTART(sv)); - goto freemagic; + case SVt_PVFM: + cv_undef((CV*)sv); + goto freescalar; case SVt_PVHV: - hv_clear(sv, FALSE); - goto freemagic; + hv_undef((HV*)sv); + break; case SVt_PVAV: - av_clear(sv); - goto freemagic; + av_undef((AV*)sv); + break; + case SVt_PVGV: + gp_free((GV*)sv); + Safefree(GvNAME(sv)); + /* FALL THROUGH */ case SVt_PVLV: - goto freemagic; case SVt_PVMG: - freemagic: - if (SvMAGICAL(sv)) - mg_freeall(sv); case SVt_PVNV: case SVt_PVIV: - SvOOK_off(sv); + freescalar: + (void)SvOOK_off(sv); /* FALL THROUGH */ case SVt_PV: - if (SvPV(sv)) - Safefree(SvPV(sv)); + case SVt_RV: + if (SvROK(sv)) + SvREFCNT_dec(SvRV(sv)); + else if (SvPVX(sv) && SvLEN(sv)) + Safefree(SvPVX(sv)); break; +/* case SVt_NV: - break; case SVt_IV: - break; - case SVt_REF: - sv_free((SV*)SvANY(sv)); - break; case SVt_NULL: break; +*/ } switch (SvTYPE(sv)) { case SVt_NULL: break; - case SVt_REF: - break; case SVt_IV: del_XIV(SvANY(sv)); break; case SVt_NV: del_XNV(SvANY(sv)); break; + case SVt_RV: + del_XRV(SvANY(sv)); + break; case SVt_PV: del_XPV(SvANY(sv)); break; @@ -1274,15 +2707,20 @@ register SV *sv; case SVt_PVFM: del_XPVFM(SvANY(sv)); break; + case SVt_PVIO: + del_XPVIO(SvANY(sv)); + break; } - DEB(SvTYPE(sv) = 0xff;) + SvFLAGS(sv) &= SVf_BREAK; + SvFLAGS(sv) |= SVTYPEMASK; } SV * -sv_ref(sv) +sv_newref(sv) SV* sv; { - SvREFCNT(sv)++; + if (sv) + SvREFCNT(sv)++; return sv; } @@ -1297,52 +2735,22 @@ SV *sv; return; } if (SvREFCNT(sv) == 0) { + if (SvFLAGS(sv) & SVf_BREAK) + return; + if (in_clean_all) /* All is fair */ + return; warn("Attempt to free unreferenced scalar"); return; } if (--SvREFCNT(sv) > 0) return; - if (SvSTORAGE(sv) == 'O') { - dSP; - BINOP myop; /* fake syntax tree node */ - GV* destructor; - - SvSTORAGE(sv) = 0; /* Curse the object. */ - - ENTER; - SAVESPTR(curcop); - SAVESPTR(op); - curcop = &compiling; - curstash = SvSTASH(sv); - destructor = gv_fetchpv("DESTROY", FALSE); - - if (GvCV(destructor)) { - SV* ref = sv_mortalcopy(&sv_undef); - SvREFCNT(ref) = 1; - sv_upgrade(ref, SVt_REF); - SvANY(ref) = (void*)sv_ref(sv); - - op = (OP*)&myop; - Zero(op, 1, OP); - myop.op_last = (OP*)&myop; - myop.op_flags = OPf_STACKED; - myop.op_next = Nullop; - - EXTEND(SP, 2); - PUSHs((SV*)destructor); - pp_pushmark(); - PUSHs(ref); - PUTBACK; - op = pp_entersubr(); - run(); - stack_sp--; - LEAVE; /* Will eventually free sv as ordinary item. */ - return; - } - LEAVE; +#ifdef DEBUGGING + if (SvTEMP(sv)) { + warn("Attempt to free temp prematurely"); + return; } +#endif sv_clear(sv); - DEB(SvTYPE(sv) = 0xff;) del_SV(sv); } @@ -1350,25 +2758,17 @@ STRLEN sv_len(sv) register SV *sv; { - I32 paren; - I32 i; - char *s; + char *junk; + STRLEN len; if (!sv) return 0; - if (SvMAGICAL(sv)) - return mg_len(sv, SvMAGIC(sv)); - - if (!(SvPOK(sv))) { - (void)sv_2pv(sv); - if (!SvOK(sv)) - return 0; - } - if (SvPV(sv)) - return SvCUR(sv); + if (SvGMAGICAL(sv)) + len = mg_len(sv); else - return 0; + junk = SvPV(sv, len); + return len; } I32 @@ -1377,140 +2777,233 @@ register SV *str1; register SV *str2; { char *pv1; - U32 cur1; + STRLEN cur1; char *pv2; - U32 cur2; + STRLEN cur2; if (!str1) { pv1 = ""; cur1 = 0; } - else { - if (SvMAGICAL(str1)) - mg_get(str1); - if (!SvPOK(str1)) { - (void)sv_2pv(str1); - if (!SvPOK(str1)) - str1 = &sv_no; - } - pv1 = SvPV(str1); - cur1 = SvCUR(str1); - } + else + pv1 = SvPV(str1, cur1); if (!str2) return !cur1; - else { - if (SvMAGICAL(str2)) - mg_get(str2); - if (!SvPOK(str2)) { - (void)sv_2pv(str2); - if (!SvPOK(str2)) - return !cur1; - } - pv2 = SvPV(str2); - cur2 = SvCUR(str2); - } + else + pv2 = SvPV(str2, cur2); if (cur1 != cur2) return 0; - return !bcmp(pv1, pv2, cur1); + return memEQ(pv1, pv2, cur1); } I32 -sv_cmp(str1,str2) +sv_cmp(str1, str2) register SV *str1; register SV *str2; { + STRLEN cur1 = 0; + char *pv1 = str1 ? SvPV(str1, cur1) : NULL; + STRLEN cur2 = 0; + char *pv2 = str2 ? SvPV(str2, cur2) : NULL; I32 retval; - char *pv1; - U32 cur1; - char *pv2; - U32 cur2; - - if (!str1) { - pv1 = ""; - cur1 = 0; - } - else { - if (SvMAGICAL(str1)) - mg_get(str1); - if (!SvPOK(str1)) { - (void)sv_2pv(str1); - if (!SvPOK(str1)) - str1 = &sv_no; - } - pv1 = SvPV(str1); - cur1 = SvCUR(str1); - } - - if (!str2) { - pv2 = ""; - cur2 = 0; - } - else { - if (SvMAGICAL(str2)) - mg_get(str2); - if (!SvPOK(str2)) { - (void)sv_2pv(str2); - if (!SvPOK(str2)) - str2 = &sv_no; - } - pv2 = SvPV(str2); - cur2 = SvCUR(str2); - } if (!cur1) return cur2 ? -1 : 0; + if (!cur2) return 1; - if (cur1 < cur2) { - /*SUPPRESS 560*/ - if (retval = memcmp(pv1, pv2, cur1)) - return retval < 0 ? -1 : 1; - else - return -1; - } - /*SUPPRESS 560*/ - else if (retval = memcmp(pv1, pv2, cur2)) + retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); + + if (retval) return retval < 0 ? -1 : 1; - else if (cur1 == cur2) + + if (cur1 == cur2) return 0; else - return 1; + return cur1 < cur2 ? -1 : 1; } -char * -sv_gets(sv,fp,append) -register SV *sv; -register FILE *fp; -I32 append; +I32 +sv_cmp_locale(sv1, sv2) +register SV *sv1; +register SV *sv2; { - register char *bp; /* we're going to steal some values */ - register I32 cnt; /* from the stdio struct and put EVERYTHING */ - register STDCHAR *ptr; /* in the innermost loop into registers */ - register I32 newline = rschar;/* (assuming >= 6 registers) */ - I32 i; - STRLEN bpx; - I32 shortbuffered; +#ifdef USE_LOCALE_COLLATE - if (SvREADONLY(sv)) - fatal(no_modify); - if (!SvUPGRADE(sv, SVt_PV)) - return; - if (rspara) { /* have to do this both before and after */ - do { /* to make sure file boundaries work right */ - i = getc(fp); - if (i != '\n') { - ungetc(i,fp); - break; - } - } while (i != EOF); + char *pv1, *pv2; + STRLEN len1, len2; + I32 retval; + + if (collation_standard) + goto raw_compare; + + len1 = 0; + pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL; + len2 = 0; + pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL; + + if (!pv1 || !len1) { + if (pv2 && len2) + return -1; + else + goto raw_compare; + } + else { + if (!pv2 || !len2) + return 1; + } + + retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); + + if (retval) + return retval < 0 ? -1 : 1; + + /* + * When the result of collation is equality, that doesn't mean + * that there are no differences -- some locales exclude some + * characters from consideration. So to avoid false equalities, + * we use the raw string as a tiebreaker. + */ + + raw_compare: + /* FALL THROUGH */ + +#endif /* USE_LOCALE_COLLATE */ + + return sv_cmp(sv1, sv2); +} + +#ifdef USE_LOCALE_COLLATE + +char * +sv_collxfrm(sv, nxp) + SV *sv; + STRLEN *nxp; +{ + /* 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. */ + + MAGIC *mg = NULL; + + if (SvMAGICAL(sv)) { + mg = mg_find(sv, 'o'); + if (mg && *(U32*)mg->mg_ptr != collation_ix) + mg = NULL; + } + + if (! mg) { + char *s, *xf; + STRLEN len, xlen; + + s = SvPV(sv, len); + if ((xf = mem_collxfrm(s, len, &xlen))) { + sv_magic(sv, 0, 'o', 0, 0); + if ((mg = mg_find(sv, 'o'))) { + mg->mg_ptr = xf; + mg->mg_len = xlen; + } + } + } + + if (mg) { + *nxp = mg->mg_len; + return mg->mg_ptr + sizeof(collation_ix); + } + else { + *nxp = 0; + return NULL; + } +} + +#endif /* USE_LOCALE_COLLATE */ + +char * +sv_gets(sv,fp,append) +register SV *sv; +register PerlIO *fp; +I32 append; +{ + char *rsptr; + STRLEN rslen; + register STDCHAR rslast; + register STDCHAR *bp; + register I32 cnt; + I32 i; + + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) + sv_unref(sv); + } + if (!SvUPGRADE(sv, SVt_PV)) + return 0; + SvSCREAM_off(sv); + + if (RsSNARF(rs)) { + rsptr = NULL; + rslen = 0; + } + else if (RsPARA(rs)) { + rsptr = "\n\n"; + rslen = 2; + } + else + rsptr = SvPV(rs, rslen); + rslast = rslen ? rsptr[rslen - 1] : '\0'; + + if (RsPARA(rs)) { /* have to do this both before and after */ + do { /* to make sure file boundaries work right */ + 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); } -#ifdef STDSTDIO /* Here is some breathtakingly efficient cheating */ - cnt = fp->_cnt; /* get count into register */ - SvPOK_only(sv); /* validate pointer */ + + /* See if we know enough about I/O mechanism to cheat it ! */ + + /* This used to be #ifdef test - it is made run-time test for ease + of abstracting out stdio interface. One call should be cheap + enough here - and may even be a macro allowing compile + time optimization. + */ + + if (PerlIO_fast_gets(fp)) { + + /* + * We're going to steal some values from the stdio struct + * and put EVERYTHING in the innermost loop into registers. + */ + register STDCHAR *ptr; + STRLEN bpx; + I32 shortbuffered; + +#if defined(VMS) && defined(PERLIO_IS_STDIO) + /* An ungetc()d char is handled separately from the regular + * buffer, so we getc() it back out and stuff it in the buffer. + */ + i = PerlIO_getc(fp); + if (i == EOF) return 0; + *(--((*fp)->_ptr)) = (unsigned char) i; + (*fp)->_cnt++; +#endif + + /* Here is some breathtakingly efficient cheating */ + + cnt = PerlIO_get_cnt(fp); /* get count into register */ + (void)SvPOK_only(sv); /* validate pointer */ if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ if (cnt > 80 && SvLEN(sv) > append) { shortbuffered = cnt - SvLEN(sv) + append + 1; @@ -1518,146 +3011,208 @@ I32 append; } else { shortbuffered = 0; - SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */ + /* remember that cnt can be negative */ + SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); } } else shortbuffered = 0; - bp = SvPV(sv) + append; /* move these two too to registers */ - ptr = fp->_ptr; + bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ + ptr = (STDCHAR*)PerlIO_get_ptr(fp); + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: entering, ptr=%d, cnt=%d\n",ptr,cnt)); + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: entering: FILE * thinks ptr=%d, cnt=%d, base=%d\n", + PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), + PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)); for (;;) { screamer: - while (--cnt >= 0) { /* this */ /* eat */ - if ((*bp++ = *ptr++) == newline) /* really */ /* dust */ - goto thats_all_folks; /* screams */ /* sed :-) */ + 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 */ + if (shortbuffered) { /* oh well, must extend */ cnt = shortbuffered; shortbuffered = 0; - bpx = bp - SvPV(sv); /* prepare for possible relocation */ + bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ SvCUR_set(sv, bpx); SvGROW(sv, SvLEN(sv) + append + cnt + 2); - bp = SvPV(sv) + bpx; /* reconstitute our pointer */ + bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ continue; } - fp->_cnt = cnt; /* deregisterize cnt and ptr */ - fp->_ptr = ptr; - i = _filbuf(fp); /* get more characters */ - cnt = fp->_cnt; - ptr = fp->_ptr; /* reregisterize cnt and ptr */ + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: going to getc, ptr=%d, cnt=%d\n",ptr,cnt)); + PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: pre: FILE * thinks ptr=%d, cnt=%d, base=%d\n", + PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), + 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 another + abstraction. This may also avoid issues with different named + 'filbuf' equivalents, though Configure tries to handle them now + anyway. + */ + i = PerlIO_getc(fp); /* get more characters */ + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: post: FILE * thinks ptr=%d, cnt=%d, base=%d\n", + PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), + 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=%d, cnt=%d\n",ptr,cnt)); + + if (i == EOF) /* all done for ever? */ + goto thats_really_all_folks; - bpx = bp - SvPV(sv); /* prepare for possible relocation */ + bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ SvCUR_set(sv, bpx); SvGROW(sv, bpx + cnt + 2); - bp = SvPV(sv) + bpx; /* reconstitute our pointer */ + bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ - if (i == newline) { /* all done for now? */ - *bp++ = i; + *bp++ = i; /* store character from PerlIO_getc */ + + if (rslen && (STDCHAR)i == rslast) /* all done for now? */ goto thats_all_folks; - } - else if (i == EOF) /* all done for ever? */ - goto thats_really_all_folks; - *bp++ = i; /* now go back to screaming loop */ } thats_all_folks: - if (rslen > 1 && (bp - SvPV(sv) < rslen || bcmp(bp - rslen, rs, rslen))) - goto screamer; /* go back to the fray */ + if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || + memNE((char*)bp - rslen, rsptr, rslen)) + goto screamer; /* go back to the fray */ thats_really_all_folks: if (shortbuffered) cnt += shortbuffered; - fp->_cnt = cnt; /* put these back or we're in trouble */ - fp->_ptr = ptr; + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: quitting, ptr=%d, cnt=%d\n",ptr,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=%d, cnt=%d, base=%d\n", + PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), + PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)); *bp = '\0'; - SvCUR_set(sv, bp - SvPV(sv)); /* set length */ - -#else /* !STDSTDIO */ /* The big, slow, and stupid way */ - + SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ + DEBUG_P(PerlIO_printf(Perl_debug_log, + "Screamer: done, len=%d, string=|%.*s|\n", + SvCUR(sv),SvCUR(sv),SvPVX(sv))); + } + else { - char buf[8192]; - register char * bpe = buf + sizeof(buf) - 3; + /*The big, slow, and stupid way */ + STDCHAR buf[8192]; -screamer: - bp = buf; - while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ; +screamer2: + if (rslen) { + register STDCHAR *bpe = buf + sizeof(buf); + bp = buf; + while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) + ; /* keep reading */ + cnt = bp - buf; + } + else { + cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); + /* Accomodate broken VAXC compiler, which applies U8 cast to + * both args of ?: operator, causing EOF to change into 255 + */ + if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } + } if (append) - sv_catpvn(sv, buf, bp - buf); + sv_catpvn(sv, (char *) buf, cnt); else - sv_setpvn(sv, buf, bp - buf); - if (i != EOF /* joy */ - && - (i != newline - || - (rslen > 1 - && - (SvCUR(sv) < rslen - || - bcmp(SvPV(sv) + SvCUR(sv) - rslen, rs, rslen) - ) - ) - ) - ) + sv_setpvn(sv, (char *) buf, cnt); + + if (i != EOF && /* joy */ + (!rslen || + SvCUR(sv) < rslen || + memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) { append = -1; - goto screamer; + goto screamer2; } } -#endif /* STDSTDIO */ - - if (rspara) { - while (i != EOF) { - i = getc(fp); + if (RsPARA(rs)) { /* have to do this both before and after */ + while (i != EOF) { /* to make sure file boundaries work right */ + i = PerlIO_getc(fp); if (i != '\n') { - ungetc(i,fp); + PerlIO_ungetc(fp,i); break; } } } - return SvCUR(sv) - append ? SvPV(sv) : Nullch; + + return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; } + void sv_inc(sv) register SV *sv; { register char *d; + int flags; if (!sv) return; - if (SvREADONLY(sv)) - fatal(no_modify); - if (SvMAGICAL(sv)) + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) { +#ifdef OVERLOAD + if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; +#endif /* OVERLOAD */ + sv_unref(sv); + } + } + if (SvGMAGICAL(sv)) mg_get(sv); - if (SvIOK(sv)) { - ++SvIV(sv); - SvIOK_only(sv); + flags = SvFLAGS(sv); + if (flags & SVp_NOK) { + (void)SvNOK_only(sv); + SvNVX(sv) += 1.0; return; } - if (SvNOK(sv)) { - SvNV(sv) += 1.0; - SvNOK_only(sv); + if (flags & SVp_IOK) { + if (SvIVX(sv) == IV_MAX) + sv_setnv(sv, (double)IV_MAX + 1.0); + else { + (void)SvIOK_only(sv); + ++SvIVX(sv); + } return; } - if (!SvPOK(sv) || !*SvPV(sv)) { - if (!SvUPGRADE(sv, SVt_NV)) - return; - SvNV(sv) = 1.0; - SvNOK_only(sv); + if (!(flags & SVp_POK) || !*SvPVX(sv)) { + if ((flags & SVTYPEMASK) < SVt_PVNV) + sv_upgrade(sv, SVt_NV); + SvNVX(sv) = 1.0; + (void)SvNOK_only(sv); return; } - d = SvPV(sv); + d = SvPVX(sv); while (isALPHA(*d)) d++; while (isDIGIT(*d)) d++; if (*d) { - sv_setnv(sv,atof(SvPV(sv)) + 1.0); /* punt */ + SET_NUMERIC_STANDARD(); + sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ return; } d--; - while (d >= SvPV(sv)) { + while (d >= SvPVX(sv)) { if (isDIGIT(*d)) { if (++*d <= '9') return; @@ -1673,7 +3228,7 @@ register SV *sv; /* oh,oh, the number grew */ SvGROW(sv, SvCUR(sv) + 2); SvCUR(sv)++; - for (d = SvPV(sv) + SvCUR(sv); d > SvPV(sv); d--) + for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) *d = d[-1]; if (isDIGIT(d[1])) *d = '1'; @@ -1685,30 +3240,46 @@ void sv_dec(sv) register SV *sv; { + int flags; + if (!sv) return; - if (SvREADONLY(sv)) - fatal(no_modify); - if (SvMAGICAL(sv)) + if (SvTHINKFIRST(sv)) { + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (SvROK(sv)) { +#ifdef OVERLOAD + if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; +#endif /* OVERLOAD */ + sv_unref(sv); + } + } + if (SvGMAGICAL(sv)) mg_get(sv); - if (SvIOK(sv)) { - --SvIV(sv); - SvIOK_only(sv); + flags = SvFLAGS(sv); + if (flags & SVp_NOK) { + SvNVX(sv) -= 1.0; + (void)SvNOK_only(sv); return; } - if (SvNOK(sv)) { - SvNV(sv) -= 1.0; - SvNOK_only(sv); + if (flags & SVp_IOK) { + if (SvIVX(sv) == IV_MIN) + sv_setnv(sv, (double)IV_MIN - 1.0); + else { + (void)SvIOK_only(sv); + --SvIVX(sv); + } return; } - if (!SvPOK(sv)) { - if (!SvUPGRADE(sv, SVt_NV)) - return; - SvNV(sv) = -1.0; - SvNOK_only(sv); + if (!(flags & SVp_POK)) { + if ((flags & SVTYPEMASK) < SVt_PVNV) + sv_upgrade(sv, SVt_NV); + SvNVX(sv) = -1.0; + (void)SvNOK_only(sv); return; } - sv_setnv(sv,atof(SvPV(sv)) - 1.0); + SET_NUMERIC_STANDARD(); + sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */ } /* Make a string that will exist for the duration of the expression @@ -1716,25 +3287,43 @@ register SV *sv; * hopefully we won't free it until it has been assigned to a * permanent location. */ +static void +sv_mortalgrow() +{ + tmps_max += (tmps_max < 512) ? 128 : 512; + Renew(tmps_stack, tmps_max, SV*); +} + SV * sv_mortalcopy(oldstr) SV *oldstr; { - register SV *sv = NEWSV(78,0); + register SV *sv; + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; sv_setsv(sv,oldstr); - if (++tmps_ix > tmps_max) { - tmps_max = tmps_ix; - if (!(tmps_max & 127)) { - if (tmps_max) - Renew(tmps_stack, tmps_max + 128, SV*); - else - New(702,tmps_stack, 128, SV*); - } - } + if (++tmps_ix >= tmps_max) + sv_mortalgrow(); + tmps_stack[tmps_ix] = sv; + SvTEMP_on(sv); + return sv; +} + +SV * +sv_newmortal() +{ + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = SVs_TEMP; + if (++tmps_ix >= tmps_max) + sv_mortalgrow(); tmps_stack[tmps_ix] = sv; - if (SvPOK(sv)) - SvTEMP_on(sv); return sv; } @@ -1746,20 +3335,12 @@ register SV *sv; { if (!sv) return sv; - if (SvREADONLY(sv)) - fatal(no_modify); - if (++tmps_ix > tmps_max) { - tmps_max = tmps_ix; - if (!(tmps_max & 127)) { - if (tmps_max) - Renew(tmps_stack, tmps_max + 128, SV*); - else - New(704,tmps_stack, 128, SV*); - } - } + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + if (++tmps_ix >= tmps_max) + sv_mortalgrow(); tmps_stack[tmps_ix] = sv; - if (SvPOK(sv)) - SvTEMP_on(sv); + SvTEMP_on(sv); return sv; } @@ -1768,8 +3349,12 @@ newSVpv(s,len) char *s; STRLEN len; { - register SV *sv = NEWSV(79,0); + 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); @@ -1780,45 +3365,73 @@ SV * newSVnv(n) double n; { - register SV *sv = NEWSV(80,0); + register SV *sv; + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; sv_setnv(sv,n); return sv; } SV * newSViv(i) -I32 i; +IV i; { - register SV *sv = NEWSV(80,0); + register SV *sv; + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; sv_setiv(sv,i); return sv; } +SV * +newRV(ref) +SV *ref; +{ + register SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; + sv_upgrade(sv, SVt_RV); + SvTEMP_off(ref); + SvRV(sv) = SvREFCNT_inc(ref); + SvROK_on(sv); + return sv; +} + /* make an exact duplicate of old */ SV * newSVsv(old) register SV *old; { - register SV *new; + register SV *sv; if (!old) return Nullsv; - if (SvTYPE(old) == 0xff) { + if (SvTYPE(old) == SVTYPEMASK) { warn("semi-panic: attempt to dup freed string"); return Nullsv; } - new = NEWSV(80,0); + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; if (SvTEMP(old)) { SvTEMP_off(old); - sv_setsv(new,old); + sv_setsv(sv,old); SvTEMP_on(old); } else - sv_setsv(new,old); - return new; + sv_setsv(sv,old); + return sv; } void @@ -1832,6 +3445,7 @@ HV *stash; register I32 i; register PMOP *pm; register I32 max; + char todo[256]; if (!*s) { /* reset ?? searches */ for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { @@ -1844,6 +3458,8 @@ HV *stash; if (!HvARRAY(stash)) return; + + Zero(todo, 256, char); while (*s) { i = *s; if (s[1] == '-') { @@ -1851,101 +3467,40 @@ HV *stash; } max = *s++; for ( ; i <= max; i++) { + todo[i] = 1; + } + for (i = 0; i <= (I32) HvMAX(stash); i++) { for (entry = HvARRAY(stash)[i]; entry; - entry = entry->hent_next) { - gv = (GV*)entry->hent_val; + entry = HeNEXT(entry)) { + if (!todo[(U8)*HeKEY(entry)]) + continue; + gv = (GV*)HeVAL(entry); sv = GvSV(gv); - SvOK_off(sv); + (void)SvOK_off(sv); if (SvTYPE(sv) >= SVt_PV) { SvCUR_set(sv, 0); - SvTDOWN(sv); - if (SvPV(sv) != Nullch) - *SvPV(sv) = '\0'; + SvTAINT(sv); + if (SvPVX(sv) != Nullch) + *SvPVX(sv) = '\0'; } if (GvAV(gv)) { av_clear(GvAV(gv)); } if (GvHV(gv)) { - hv_clear(GvHV(gv), FALSE); + if (HvNAME(GvHV(gv))) + continue; + hv_clear(GvHV(gv)); +#ifndef VMS /* VMS has no environ array */ if (gv == envgv) environ[0] = Nullch; +#endif } } } } } -#ifdef OLD -AV * -sv_2av(sv, st, gvp, lref) -SV *sv; -HV **st; -GV **gvp; -I32 lref; -{ - GV *gv; - - switch (SvTYPE(sv)) { - case SVt_PVAV: - *st = sv->sv_u.sv_stash; - *gvp = Nullgv; - return sv->sv_u.sv_av; - case SVt_PVHV: - case SVt_PVCV: - *gvp = Nullgv; - return Nullav; - default: - if (isGV(sv)) - gv = (GV*)sv; - else - gv = gv_fetchpv(SvPVn(sv), lref); - *gvp = gv; - if (!gv) - return Nullav; - *st = GvESTASH(gv); - if (lref) - return GvAVn(gv); - else - return GvAV(gv); - } -} - -HV * -sv_2hv(sv, st, gvp, lref) -SV *sv; -HV **st; -GV **gvp; -I32 lref; -{ - GV *gv; - - switch (SvTYPE(sv)) { - case SVt_PVHV: - *st = sv->sv_u.sv_stash; - *gvp = Nullgv; - return sv->sv_u.sv_hv; - case SVt_PVAV: - case SVt_PVCV: - *gvp = Nullgv; - return Nullhv; - default: - if (isGV(sv)) - gv = (GV*)sv; - else - gv = gv_fetchpv(SvPVn(sv), lref); - *gvp = gv; - if (!gv) - return Nullhv; - *st = GvESTASH(gv); - if (lref) - return GvHVn(gv); - else - return GvHV(gv); - } -} -#endif; - CV * sv_2cv(sv, st, gvp, lref) SV *sv; @@ -1957,15 +3512,8 @@ I32 lref; CV *cv; if (!sv) - return Nullcv; + return *gvp = Nullgv, Nullcv; switch (SvTYPE(sv)) { - case SVt_REF: - cv = (CV*)SvANY(sv); - if (SvTYPE(cv) != SVt_PVCV) - fatal("Not a subroutine reference"); - *gvp = Nullgv; - *st = CvSTASH(cv); - return cv; case SVt_PVCV: *st = CvSTASH(sv); *gvp = Nullgv; @@ -1974,15 +3522,45 @@ I32 lref; case SVt_PVAV: *gvp = Nullgv; return Nullcv; + case SVt_PVGV: + gv = (GV*)sv; + *gvp = gv; + *st = GvESTASH(gv); + goto fix_gv; + default: + if (SvGMAGICAL(sv)) + mg_get(sv); + if (SvROK(sv)) { + cv = (CV*)SvRV(sv); + if (SvTYPE(cv) != SVt_PVCV) + croak("Not a subroutine reference"); + *gvp = Nullgv; + *st = CvSTASH(cv); + return cv; + } if (isGV(sv)) gv = (GV*)sv; else - gv = gv_fetchpv(SvPVn(sv), lref); + gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV); *gvp = gv; if (!gv) return Nullcv; *st = GvESTASH(gv); + fix_gv: + if (lref && !GvCV(gv)) { + SV *tmpsv; + ENTER; + tmpsv = NEWSV(704,0); + gv_efullname3(tmpsv, gv, Nullch); + newSUB(start_subparse(), + newSVOP(OP_CONST, 0, tmpsv), + Nullop, + Nullop); + LEAVE; + if (!GvCV(gv)) + croak("Unable to create sub named \"%s\"", SvPV(sv,na)); + } return GvCV(gv); } } @@ -1992,7 +3570,9 @@ I32 SvTRUE(sv) register SV *sv; { - if (SvMAGICAL(sv)) + if (!sv) + return 0; + if (SvGMAGICAL(sv)) mg_get(sv); if (SvPOK(sv)) { register XPV* Xpv; @@ -2006,41 +3586,626 @@ register SV *sv; } else { if (SvIOK(sv)) - return SvIV(sv) != 0; + return SvIVX(sv) != 0; else { if (SvNOK(sv)) - return SvNV(sv) != 0.0; + return SvNVX(sv) != 0.0; else - return 0; + return sv_2bool(sv); } } } -#endif /* SvTRUE */ +#endif /* !SvTRUE */ -#ifndef SvNVn -double SvNVn(Sv) -register SV *Sv; +#ifndef SvIV +IV +SvIV(sv) +register SV *sv; { - SvTUP(Sv); - if (SvMAGICAL(sv)) - mg_get(sv); - if (SvNOK(Sv)) - return SvNV(Sv); - if (SvIOK(Sv)) - return (double)SvIV(Sv); - return sv_2nv(Sv); + if (SvIOK(sv)) + return SvIVX(sv); + return sv_2iv(sv); } -#endif /* SvNVn */ +#endif /* !SvIV */ -#ifndef SvPVn +#ifndef SvUV +UV +SvUV(sv) +register SV *sv; +{ + if (SvIOK(sv)) + return SvUVX(sv); + return sv_2uv(sv); +} +#endif /* !SvUV */ + +#ifndef SvNV +double +SvNV(sv) +register SV *sv; +{ + if (SvNOK(sv)) + return SvNVX(sv); + return sv_2nv(sv); +} +#endif /* !SvNV */ + +#ifdef CRIPPLED_CC char * -SvPVn(sv) +sv_pvn(sv, lp) SV *sv; +STRLEN *lp; { - SvTUP(sv); - if (SvMAGICAL(sv)) - mg_get(sv); - return SvPOK(sv) ? SvPV(sv) : sv_2pv(sv); + if (SvPOK(sv)) { + *lp = SvCUR(sv); + return SvPVX(sv); + } + return sv_2pv(sv, lp); } #endif +char * +sv_pvn_force(sv, lp) +SV *sv; +STRLEN *lp; +{ + char *s; + + if (SvREADONLY(sv) && curcop != &compiling) + croak(no_modify); + + if (SvPOK(sv)) { + *lp = SvCUR(sv); + } + else { + if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { + if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) { + sv_unglob(sv); + s = SvPVX(sv); + *lp = SvCUR(sv); + } + else + croak("Can't coerce %s to string in %s", sv_reftype(sv,0), + op_name[op->op_type]); + } + else + s = sv_2pv(sv, lp); + if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ + STRLEN len = *lp; + + if (SvROK(sv)) + sv_unref(sv); + (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ + SvGROW(sv, len + 1); + Move(s,SvPVX(sv),len,char); + SvCUR_set(sv, len); + *SvEND(sv) = '\0'; + } + if (!SvPOK(sv)) { + SvPOK_on(sv); /* validate pointer */ + SvTAINT(sv); + DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n", + (unsigned long)sv,SvPVX(sv))); + } + } + return SvPVX(sv); +} + +char * +sv_reftype(sv, ob) +SV* sv; +int ob; +{ + if (ob && SvOBJECT(sv)) + return HvNAME(SvSTASH(sv)); + else { + switch (SvTYPE(sv)) { + case SVt_NULL: + case SVt_IV: + case SVt_NV: + case SVt_RV: + case SVt_PV: + case SVt_PVIV: + case SVt_PVNV: + case SVt_PVMG: + case SVt_PVBM: + if (SvROK(sv)) + return "REF"; + else + return "SCALAR"; + case SVt_PVLV: return "LVALUE"; + case SVt_PVAV: return "ARRAY"; + case SVt_PVHV: return "HASH"; + case SVt_PVCV: return "CODE"; + case SVt_PVGV: return "GLOB"; + case SVt_PVFM: return "FORMLINE"; + default: return "UNKNOWN"; + } + } +} + +int +sv_isobject(sv) +SV *sv; +{ + if (!SvROK(sv)) + return 0; + sv = (SV*)SvRV(sv); + if (!SvOBJECT(sv)) + return 0; + return 1; +} + +int +sv_isa(sv, name) +SV *sv; +char *name; +{ + if (!SvROK(sv)) + return 0; + sv = (SV*)SvRV(sv); + if (!SvOBJECT(sv)) + return 0; + + return strEQ(HvNAME(SvSTASH(sv)), name); +} + +SV* +newSVrv(rv, classname) +SV *rv; +char *classname; +{ + SV *sv; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 0; + SvFLAGS(sv) = 0; + sv_upgrade(rv, SVt_RV); + SvRV(rv) = SvREFCNT_inc(sv); + SvROK_on(rv); + + if (classname) { + HV* stash = gv_stashpv(classname, TRUE); + (void)sv_bless(rv, stash); + } + return sv; +} + +SV* +sv_setref_pv(rv, classname, pv) +SV *rv; +char *classname; +void* pv; +{ + if (!pv) + sv_setsv(rv, &sv_undef); + else + sv_setiv(newSVrv(rv,classname), (IV)pv); + return rv; +} + +SV* +sv_setref_iv(rv, classname, iv) +SV *rv; +char *classname; +IV iv; +{ + sv_setiv(newSVrv(rv,classname), iv); + return rv; +} + +SV* +sv_setref_nv(rv, classname, nv) +SV *rv; +char *classname; +double nv; +{ + sv_setnv(newSVrv(rv,classname), nv); + return rv; +} + +SV* +sv_setref_pvn(rv, classname, pv, n) +SV *rv; +char *classname; +char* pv; +I32 n; +{ + sv_setpvn(newSVrv(rv,classname), pv, n); + return rv; +} + +SV* +sv_bless(sv,stash) +SV* sv; +HV* stash; +{ + SV *ref; + if (!SvROK(sv)) + croak("Can't bless non-reference value"); + ref = SvRV(sv); + if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) { + if (SvREADONLY(ref)) + croak(no_modify); + if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO) + --sv_objcount; + } + SvOBJECT_on(ref); + ++sv_objcount; + (void)SvUPGRADE(ref, SVt_PVMG); + SvSTASH(ref) = (HV*)SvREFCNT_inc(stash); + +#ifdef OVERLOAD + SvAMAGIC_off(sv); + if (Gv_AMG(stash)) { + SvAMAGIC_on(sv); + } +#endif /* OVERLOAD */ + + return sv; +} + +static void +sv_unglob(sv) +SV* sv; +{ + assert(SvTYPE(sv) == SVt_PVGV); + SvFAKE_off(sv); + if (GvGP(sv)) + gp_free((GV*)sv); + sv_unmagic(sv, '*'); + Safefree(GvNAME(sv)); + GvMULTI_off(sv); + SvFLAGS(sv) &= ~SVTYPEMASK; + SvFLAGS(sv) |= SVt_PVMG; +} + +void +sv_unref(sv) +SV* sv; +{ + SV* 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 */ +} + +IO* +sv_2io(sv) +SV *sv; +{ + IO* io; + GV* gv; + + switch (SvTYPE(sv)) { + case SVt_PVIO: + io = (IO*)sv; + break; + case SVt_PVGV: + gv = (GV*)sv; + io = GvIO(gv); + if (!io) + croak("Bad filehandle: %s", GvNAME(gv)); + break; + default: + if (!SvOK(sv)) + croak(no_usym, "filehandle"); + if (SvROK(sv)) + return sv_2io(SvRV(sv)); + gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO); + if (gv) + io = GvIO(gv); + else + io = 0; + if (!io) + croak("Bad filehandle: %s", SvPV(sv,na)); + break; + } + return io; +} + +void +sv_taint(sv) +SV *sv; +{ + sv_magic((sv), Nullsv, 't', Nullch, 0); +} + +void +sv_untaint(sv) +SV *sv; +{ + if (SvMAGICAL(sv)) { + MAGIC *mg = mg_find(sv, 't'); + if (mg) + mg->mg_len &= ~1; + } +} + +bool +sv_tainted(sv) +SV *sv; +{ + if (SvMAGICAL(sv)) { + MAGIC *mg = mg_find(sv, 't'); + if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) + return TRUE; + } + return FALSE; +} + +#ifdef DEBUGGING +void +sv_dump(sv) +SV* sv; +{ + char tmpbuf[1024]; + char *d = tmpbuf; + U32 flags; + U32 type; + + if (!sv) { + PerlIO_printf(Perl_debug_log, "SV = 0\n"); + return; + } + + flags = SvFLAGS(sv); + type = SvTYPE(sv); + + sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (", + (unsigned long)SvANY(sv), (long)SvREFCNT(sv)); + d += strlen(d); + if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,"); + if (flags & SVs_PADTMP) strcat(d, "PADTMP,"); + if (flags & SVs_PADMY) strcat(d, "PADMY,"); + if (flags & SVs_TEMP) strcat(d, "TEMP,"); + if (flags & SVs_OBJECT) strcat(d, "OBJECT,"); + if (flags & SVs_GMG) strcat(d, "GMG,"); + if (flags & SVs_SMG) strcat(d, "SMG,"); + if (flags & SVs_RMG) strcat(d, "RMG,"); + d += strlen(d); + + if (flags & SVf_IOK) strcat(d, "IOK,"); + if (flags & SVf_NOK) strcat(d, "NOK,"); + if (flags & SVf_POK) strcat(d, "POK,"); + if (flags & SVf_ROK) strcat(d, "ROK,"); + if (flags & SVf_OOK) strcat(d, "OOK,"); + if (flags & SVf_FAKE) strcat(d, "FAKE,"); + if (flags & SVf_READONLY) strcat(d, "READONLY,"); + d += strlen(d); + +#ifdef OVERLOAD + if (flags & SVf_AMAGIC) strcat(d, "OVERLOAD,"); +#endif /* OVERLOAD */ + if (flags & SVp_IOK) strcat(d, "pIOK,"); + if (flags & SVp_NOK) strcat(d, "pNOK,"); + if (flags & SVp_POK) strcat(d, "pPOK,"); + if (flags & SVp_SCREAM) strcat(d, "SCREAM,"); + + switch (type) { + case SVt_PVCV: + if (CvANON(sv)) strcat(d, "ANON,"); + if (CvCLONE(sv)) strcat(d, "CLONE,"); + if (CvCLONED(sv)) strcat(d, "CLONED,"); + break; + case SVt_PVHV: + if (HvSHAREKEYS(sv)) strcat(d, "SHAREKEYS,"); + if (HvLAZYDEL(sv)) strcat(d, "LAZYDEL,"); + break; + case SVt_PVGV: + if (GvINTRO(sv)) strcat(d, "INTRO,"); + if (GvMULTI(sv)) strcat(d, "MULTI,"); + if (GvASSUMECV(sv)) strcat(d, "ASSUMECV,"); + if (GvIMPORTED(sv)) { + strcat(d, "IMPORT"); + if (GvIMPORTED(sv) == GVf_IMPORTED) + strcat(d, "ALL,"); + else { + strcat(d, "("); + if (GvIMPORTED_SV(sv)) strcat(d, " SV"); + if (GvIMPORTED_AV(sv)) strcat(d, " AV"); + if (GvIMPORTED_HV(sv)) strcat(d, " HV"); + if (GvIMPORTED_CV(sv)) strcat(d, " CV"); + strcat(d, " ),"); + } + } +#ifdef OVERLOAD + if (flags & SVpgv_AM) strcat(d, "withOVERLOAD,"); +#endif /* OVERLOAD */ + } + + d += strlen(d); + if (d[-1] == ',') + d--; + *d++ = ')'; + *d = '\0'; + + PerlIO_printf(Perl_debug_log, "SV = "); + switch (type) { + case SVt_NULL: + PerlIO_printf(Perl_debug_log, "NULL%s\n", tmpbuf); + return; + case SVt_IV: + PerlIO_printf(Perl_debug_log, "IV%s\n", tmpbuf); + break; + case SVt_NV: + PerlIO_printf(Perl_debug_log, "NV%s\n", tmpbuf); + break; + case SVt_RV: + PerlIO_printf(Perl_debug_log, "RV%s\n", tmpbuf); + break; + case SVt_PV: + PerlIO_printf(Perl_debug_log, "PV%s\n", tmpbuf); + break; + case SVt_PVIV: + PerlIO_printf(Perl_debug_log, "PVIV%s\n", tmpbuf); + break; + case SVt_PVNV: + PerlIO_printf(Perl_debug_log, "PVNV%s\n", tmpbuf); + break; + case SVt_PVBM: + PerlIO_printf(Perl_debug_log, "PVBM%s\n", tmpbuf); + break; + case SVt_PVMG: + PerlIO_printf(Perl_debug_log, "PVMG%s\n", tmpbuf); + break; + case SVt_PVLV: + PerlIO_printf(Perl_debug_log, "PVLV%s\n", tmpbuf); + break; + case SVt_PVAV: + PerlIO_printf(Perl_debug_log, "PVAV%s\n", tmpbuf); + break; + case SVt_PVHV: + PerlIO_printf(Perl_debug_log, "PVHV%s\n", tmpbuf); + break; + case SVt_PVCV: + PerlIO_printf(Perl_debug_log, "PVCV%s\n", tmpbuf); + break; + case SVt_PVGV: + PerlIO_printf(Perl_debug_log, "PVGV%s\n", tmpbuf); + break; + case SVt_PVFM: + PerlIO_printf(Perl_debug_log, "PVFM%s\n", tmpbuf); + break; + case SVt_PVIO: + PerlIO_printf(Perl_debug_log, "PVIO%s\n", tmpbuf); + break; + default: + PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", tmpbuf); + return; + } + if (type >= SVt_PVIV || type == SVt_IV) + PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv)); + if (type >= SVt_PVNV || type == SVt_NV) { + SET_NUMERIC_STANDARD(); + PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv)); + } + if (SvROK(sv)) { + PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv)); + sv_dump(SvRV(sv)); + return; + } + if (type < SVt_PV) + return; + if (type <= SVt_PVLV) { + if (SvPVX(sv)) + PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n", + (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv)); + else + PerlIO_printf(Perl_debug_log, " PV = 0\n"); + } + if (type >= SVt_PVMG) { + if (SvMAGIC(sv)) { + PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv)); + } + if (SvSTASH(sv)) + PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv))); + } + switch (type) { + case SVt_PVLV: + PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv)); + PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv)); + PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv)); + PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv)); + sv_dump(LvTARG(sv)); + break; + case SVt_PVAV: + PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv)); + PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv)); + PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv)); + PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv)); + PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv)); + flags = AvFLAGS(sv); + d = tmpbuf; + *d = '\0'; + if (flags & AVf_REAL) strcat(d, "REAL,"); + if (flags & AVf_REIFY) strcat(d, "REIFY,"); + if (flags & AVf_REUSED) strcat(d, "REUSED,"); + if (*d) + d[strlen(d)-1] = '\0'; + PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n", d); + 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_PVFM: + case SVt_PVCV: + if (SvPOK(sv)) + PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na)); + PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv)); + PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv)); + PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv)); + PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv)); + PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32); + PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv)); + if (CvGV(sv) && GvNAME(CvGV(sv))) { + PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv))); + } else { + PerlIO_printf(Perl_debug_log, "\n"); + } + PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv)); + PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv)); + PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv)); + PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv)); + if (type == SVt_PVFM) + PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv)); + break; + case SVt_PVGV: + PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv)); + PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv)); + PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv))); + PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv)); + PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv)); + PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv)); + PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv)); + PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv)); + PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv)); + PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv)); + PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv)); + PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv)); + PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv)); + PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv)); + PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv)); + PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv)); + break; + case SVt_PVIO: + PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv)); + PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv)); + PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv)); + PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv)); + PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv)); + PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv)); + PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv)); + PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv)); + PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv)); + PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv)); + PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv)); + PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv)); + PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv)); + PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv)); + PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv)); + PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv)); + break; + } +} +#else +void +sv_dump(sv) +SV* sv; +{ +} +#endif