X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=sv.c;h=166dc07f485747fc2c4659ab088e9e7527237818;hb=b4793f7f58b137d8b2f6d505d6c77dee2cd8cb25;hp=03d32a8242a7e11de42d4169484e1bb8599d29e3;hpb=ff68c7194e176ca1907544a3a65684b76834d0fe;p=p5sagit%2Fp5-mst-13.2.git diff --git a/sv.c b/sv.c index 03d32a8..166dc07 100644 --- a/sv.c +++ b/sv.c @@ -1,6 +1,6 @@ /* sv.c * - * Copyright (c) 1991-1994, Larry Wall + * Copyright (c) 1991-1997, Larry Wall * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -40,6 +40,8 @@ # 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)); @@ -168,7 +170,7 @@ U32 flags; --sv_count; \ } while (0) -#define uproot_SV(p) \ +#define uproot_SV(p) \ do { \ (p) = sv_root; \ sv_root = (SV*)SvANY(p); \ @@ -328,13 +330,17 @@ SV* sv; } #endif +static bool in_clean_objs = FALSE; + void sv_clean_objs() { + in_clean_objs = TRUE; #ifndef DISABLE_DESTRUCTOR_KLUDGE visit(do_clean_named_objs); #endif visit(do_clean_objs); + in_clean_objs = FALSE; } static void @@ -346,14 +352,14 @@ SV* sv; SvREFCNT_dec(sv); } -static int in_clean_all = 0; +static bool in_clean_all = FALSE; void sv_clean_all() { - in_clean_all = 1; + in_clean_all = TRUE; visit(do_clean_all); - in_clean_all = 0; + in_clean_all = FALSE; } void @@ -373,6 +379,9 @@ sv_free_arenas() if (!SvFAKE(sva)) Safefree((void *)sva); } + + sv_arenaroot = 0; + sv_root = 0; } static XPVIV* @@ -876,28 +885,30 @@ char * sv_peek(sv) register SV *sv; { - char *t = tokenbuf; + SV *t = sv_newmortal(); + STRLEN prevlen; int unref = 0; + sv_setpvn(t, "", 0); retry: if (!sv) { - strcpy(t, "VOID"); + sv_catpv(t, "VOID"); goto finish; } else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') { - strcpy(t, "WILD"); + sv_catpv(t, "WILD"); goto finish; } else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) { if (sv == &sv_undef) { - strcpy(t, "SV_UNDEF"); + sv_catpv(t, "SV_UNDEF"); if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT| SVs_GMG|SVs_SMG|SVs_RMG)) && SvREADONLY(sv)) goto finish; } else if (sv == &sv_no) { - strcpy(t, "SV_NO"); + sv_catpv(t, "SV_NO"); if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| SVs_GMG|SVs_SMG|SVs_RMG)) && !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| @@ -907,7 +918,7 @@ register SV *sv; goto finish; } else { - strcpy(t, "SV_YES"); + sv_catpv(t, "SV_YES"); if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| SVs_GMG|SVs_SMG|SVs_RMG)) && !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| @@ -917,17 +928,18 @@ register SV *sv; SvNVX(sv) == 1.0) goto finish; } - t += strlen(t); - *t++ = ':'; + sv_catpv(t, ":"); } else if (SvREFCNT(sv) == 0) { - *t++ = '('; + sv_catpv(t, "("); unref++; } if (SvROK(sv)) { - *t++ = '\\'; - if (t - tokenbuf + unref > 10) { - strcpy(tokenbuf + unref + 3,"..."); + sv_catpv(t, "\\"); + if (SvCUR(t) + unref > 10) { + SvCUR(t) = unref + 3; + *SvEND(t) = '\0'; + sv_catpv(t, "..."); goto finish; } sv = (SV*)SvRV(sv); @@ -935,88 +947,85 @@ register SV *sv; } switch (SvTYPE(sv)) { default: - strcpy(t,"FREED"); + sv_catpv(t, "FREED"); goto finish; case SVt_NULL: - strcpy(t,"UNDEF"); - return tokenbuf; + sv_catpv(t, "UNDEF"); + goto finish; case SVt_IV: - strcpy(t,"IV"); + sv_catpv(t, "IV"); break; case SVt_NV: - strcpy(t,"NV"); + sv_catpv(t, "NV"); break; case SVt_RV: - strcpy(t,"RV"); + sv_catpv(t, "RV"); break; case SVt_PV: - strcpy(t,"PV"); + sv_catpv(t, "PV"); break; case SVt_PVIV: - strcpy(t,"PVIV"); + sv_catpv(t, "PVIV"); break; case SVt_PVNV: - strcpy(t,"PVNV"); + sv_catpv(t, "PVNV"); break; case SVt_PVMG: - strcpy(t,"PVMG"); + sv_catpv(t, "PVMG"); break; case SVt_PVLV: - strcpy(t,"PVLV"); + sv_catpv(t, "PVLV"); break; case SVt_PVAV: - strcpy(t,"AV"); + sv_catpv(t, "AV"); break; case SVt_PVHV: - strcpy(t,"HV"); + sv_catpv(t, "HV"); break; case SVt_PVCV: if (CvGV(sv)) - sprintf(t, "CV(%s)", GvNAME(CvGV(sv))); + sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv))); else - strcpy(t, "CV()"); + sv_catpv(t, "CV()"); goto finish; case SVt_PVGV: - strcpy(t,"GV"); + sv_catpv(t, "GV"); break; case SVt_PVBM: - strcpy(t,"BM"); + sv_catpv(t, "BM"); break; case SVt_PVFM: - strcpy(t,"FM"); + sv_catpv(t, "FM"); break; case SVt_PVIO: - strcpy(t,"IO"); + sv_catpv(t, "IO"); break; } - t += strlen(t); if (SvPOKp(sv)) { if (!SvPVX(sv)) - strcpy(t, "(null)"); + sv_catpv(t, "(null)"); if (SvOOK(sv)) - sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); + sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); else - sprintf(t,"(\"%.127s\")",SvPVX(sv)); + sv_catpvf(t, "(\"%.127s\")",SvPVX(sv)); } else if (SvNOKp(sv)) { - NUMERIC_STANDARD(); - sprintf(t,"(%g)",SvNVX(sv)); + SET_NUMERIC_STANDARD(); + sv_catpvf(t, "(%g)",SvNVX(sv)); } else if (SvIOKp(sv)) - sprintf(t,"(%ld)",(long)SvIVX(sv)); + sv_catpvf(t, "(%ld)",(long)SvIVX(sv)); else - strcpy(t,"()"); + sv_catpv(t, "()"); finish: if (unref) { - t += strlen(t); while (unref--) - *t++ = ')'; - *t = '\0'; + sv_catpv(t, ")"); } - return tokenbuf; + return SvPV(t, na); } #endif @@ -1113,7 +1122,7 @@ IV i; case SVt_PVFM: case SVt_PVIO: croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), - op_name[op->op_type]); + op_desc[op->op_type]); } (void)SvIOK_only(sv); /* validate number */ SvIVX(sv) = i; @@ -1186,9 +1195,11 @@ SV *sv; char tmpbuf[64]; char *d = tmpbuf; char *s; - int i; + char *limit = tmpbuf + sizeof(tmpbuf) - 8; + /* each *s can expand to 4 chars + "...\0", + i.e. need room for 8 chars */ - for (s = SvPVX(sv), i = 50; *s && i; s++,i--) { + for (s = SvPVX(sv); *s && d < limit; s++) { int ch = *s & 0xFF; if (ch & 128 && !isPRINT_LC(ch)) { *d++ = 'M'; @@ -1248,14 +1259,13 @@ register SV *sv; else return (IV) U_V(SvNVX(sv)); } - if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); - return (IV)atol(SvPVX(sv)); + if (SvPOKp(sv) && SvLEN(sv)) + return asIV(sv); + if (!SvROK(sv)) { + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0; } - if (!SvROK(sv)) { - return 0; - } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { @@ -1273,11 +1283,8 @@ register SV *sv; else return (IV) U_V(SvNVX(sv)); } - if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); - return (IV)atol(SvPVX(sv)); - } + if (SvPOKp(sv) && SvLEN(sv)) + return asIV(sv); if (dowarn) warn(warn_uninit); return 0; @@ -1286,7 +1293,7 @@ register SV *sv; switch (SvTYPE(sv)) { case SVt_NULL: sv_upgrade(sv, SVt_IV); - return SvIVX(sv); + break; case SVt_PV: sv_upgrade(sv, SVt_PVIV); break; @@ -1302,10 +1309,8 @@ register SV *sv; SvUVX(sv) = U_V(SvNVX(sv)); } else if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); (void)SvIOK_on(sv); - SvIVX(sv) = (IV)atol(SvPVX(sv)); + SvIVX(sv) = asIV(sv); } else { if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) @@ -1329,14 +1334,13 @@ register SV *sv; return SvUVX(sv); if (SvNOKp(sv)) return U_V(SvNVX(sv)); - if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); - return (UV)atol(SvPVX(sv)); + if (SvPOKp(sv) && SvLEN(sv)) + return asUV(sv); + if (!SvROK(sv)) { + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); + return 0; } - if (!SvROK(sv)) { - return 0; - } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { @@ -1351,11 +1355,8 @@ register SV *sv; if (SvNOKp(sv)) { return U_V(SvNVX(sv)); } - if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); - return (UV)atol(SvPVX(sv)); - } + if (SvPOKp(sv) && SvLEN(sv)) + return asUV(sv); if (dowarn) warn(warn_uninit); return 0; @@ -1364,7 +1365,7 @@ register SV *sv; switch (SvTYPE(sv)) { case SVt_NULL: sv_upgrade(sv, SVt_IV); - return SvUVX(sv); + break; case SVt_PV: sv_upgrade(sv, SVt_PVIV); break; @@ -1377,10 +1378,8 @@ register SV *sv; SvUVX(sv) = U_V(SvNVX(sv)); } else if (SvPOKp(sv) && SvLEN(sv)) { - if (dowarn && !looks_like_number(sv)) - not_a_number(sv); (void)SvIOK_on(sv); - SvUVX(sv) = (UV)atol(SvPVX(sv)); + SvUVX(sv) = asUV(sv); } else { if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) @@ -1405,12 +1404,14 @@ register SV *sv; if (SvPOKp(sv) && SvLEN(sv)) { if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) not_a_number(sv); - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); return atof(SvPVX(sv)); } if (SvIOKp(sv)) return (double)SvIVX(sv); if (!SvROK(sv)) { + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); return 0; } } @@ -1427,7 +1428,7 @@ register SV *sv; if (SvPOKp(sv) && SvLEN(sv)) { if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) not_a_number(sv); - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); return atof(SvPVX(sv)); } if (SvIOKp(sv)) @@ -1442,7 +1443,7 @@ register SV *sv; sv_upgrade(sv, SVt_PVNV); else sv_upgrade(sv, SVt_NV); - DEBUG_c(NUMERIC_STANDARD()); + DEBUG_c(SET_NUMERIC_STANDARD()); DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv))); } @@ -1456,7 +1457,7 @@ register SV *sv; else if (SvPOKp(sv) && SvLEN(sv)) { if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) not_a_number(sv); - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); SvNVX(sv) = atof(SvPVX(sv)); } else { @@ -1465,12 +1466,125 @@ register SV *sv; return 0.0; } SvNOK_on(sv); - DEBUG_c(NUMERIC_STANDARD()); + DEBUG_c(SET_NUMERIC_STANDARD()); DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); return SvNVX(sv); } +static IV +asIV(sv) +SV *sv; +{ + I32 numtype = looks_like_number(sv); + double d; + + if (numtype == 1) + return atol(SvPVX(sv)); + if (!numtype && dowarn) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + d = atof(SvPVX(sv)); + if (d < 0.0) + return I_V(d); + else + return (IV) U_V(d); +} + +static UV +asUV(sv) +SV *sv; +{ + I32 numtype = looks_like_number(sv); + + if (numtype == 1) + return atol(SvPVX(sv)); + if (!numtype && dowarn) + not_a_number(sv); + SET_NUMERIC_STANDARD(); + return U_V(atof(SvPVX(sv))); +} + +I32 +looks_like_number(sv) +SV *sv; +{ + register char *s; + register char *send; + register char *sbegin; + I32 numtype; + STRLEN len; + + if (SvPOK(sv)) { + sbegin = SvPVX(sv); + len = SvCUR(sv); + } + else if (SvPOKp(sv)) + sbegin = SvPV(sv, len); + else + return 1; + send = sbegin + len; + + s = sbegin; + while (isSPACE(*s)) + s++; + if (*s == '+' || *s == '-') + s++; + + /* next must be digit or '.' */ + if (isDIGIT(*s)) { + do { + s++; + } while (isDIGIT(*s)); + if (*s == '.') { + s++; + while (isDIGIT(*s)) /* optional digits after "." */ + s++; + } + } + else if (*s == '.') { + s++; + /* no digits before '.' means we need digits after it */ + if (isDIGIT(*s)) { + do { + s++; + } while (isDIGIT(*s)); + } + else + return 0; + } + else + return 0; + + /* + * we return 1 if the number can be converted to _integer_ with atol() + * and 2 if you need (int)atof(). + */ + numtype = 1; + + /* we can have an optional exponent part */ + if (*s == 'e' || *s == 'E') { + numtype = 2; + s++; + if (*s == '+' || *s == '-') + s++; + if (isDIGIT(*s)) { + do { + s++; + } while (isDIGIT(*s)); + } + else + return 0; + } + while (isSPACE(*s)) + s++; + if (s >= send) + return numtype; + if (len == 10 && memEQ(sbegin, "0 but true", 10)) + return 1; + return 0; +} + char * sv_2pv(sv, lp) register SV *sv; @@ -1478,6 +1592,7 @@ STRLEN *lp; { register char *s; int olderrno; + SV *tsv; if (!sv) { *lp = 0; @@ -1491,14 +1606,18 @@ STRLEN *lp; } if (SvIOKp(sv)) { (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); + tsv = Nullsv; goto tokensave; } if (SvNOKp(sv)) { - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); + tsv = Nullsv; goto tokensave; } if (!SvROK(sv)) { + if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) + warn(warn_uninit); *lp = 0; return ""; } @@ -1530,14 +1649,15 @@ STRLEN *lp; case SVt_PVCV: s = "CODE"; break; case SVt_PVGV: s = "GLOB"; break; case SVt_PVFM: s = "FORMATLINE"; break; - case SVt_PVIO: s = "FILEHANDLE"; break; + case SVt_PVIO: s = "IO"; break; default: s = "UNKNOWN"; break; } + tsv = NEWSV(0,0); if (SvOBJECT(sv)) - sprintf(tokenbuf, "%s=%s(0x%lx)", - HvNAME(SvSTASH(sv)), s, (unsigned long)sv); + sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); else - sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv); + sv_setpv(tsv, s); + sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv); goto tokensaveref; } *lp = strlen(s); @@ -1545,12 +1665,14 @@ STRLEN *lp; } if (SvREADONLY(sv)) { if (SvNOKp(sv)) { - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); + tsv = Nullsv; goto tokensave; } if (SvIOKp(sv)) { (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); + tsv = Nullsv; goto tokensave; } if (dowarn) @@ -1573,7 +1695,7 @@ STRLEN *lp; else #endif /*apollo*/ { - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); Gconvert(SvNVX(sv), DBL_DIG, 0, s); } errno = olderrno; @@ -1584,18 +1706,21 @@ STRLEN *lp; while (*s) s++; #ifdef hcx if (s[-1] == '.') - s--; + *--s = '\0'; #endif } else if (SvIOKp(sv)) { + U32 oldIOK = SvIOK(sv); if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv, SVt_PVIV); - SvGROW(sv, 11); - s = SvPVX(sv); olderrno = errno; /* some Xenix systems wipe out errno here */ - (void)sprintf(s,"%ld",(long)SvIVX(sv)); + sv_setpvf(sv, "%Vd", SvIVX(sv)); errno = olderrno; - while (*s) s++; + s = SvEND(sv); + if (oldIOK) + SvIOK_on(sv); + else + SvIOKp_on(sv); } else { if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) @@ -1603,7 +1728,6 @@ STRLEN *lp; *lp = 0; return ""; } - *s = '\0'; *lp = s - SvPVX(sv); SvCUR_set(sv, *lp); SvPOK_on(sv); @@ -1615,23 +1739,36 @@ STRLEN *lp; /* Sneaky stuff here */ tokensaveref: - sv = sv_newmortal(); - *lp = strlen(tokenbuf); - sv_setpvn(sv, tokenbuf, *lp); - return SvPVX(sv); + if (!tsv) + tsv = newSVpv(tokenbuf, 0); + sv_2mortal(tsv); + *lp = SvCUR(tsv); + return SvPVX(tsv); } else { STRLEN len; - + char *t; + + if (tsv) { + sv_2mortal(tsv); + t = SvPVX(tsv); + len = SvCUR(tsv); + } + else { + t = tokenbuf; + len = strlen(tokenbuf); + } #ifdef FIXNEGATIVEZERO - if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2]) - strcpy(tokenbuf,"0"); + if (len == 2 && t[0] == '-' && t[1] == '0') { + t = "0"; + len = 1; + } #endif (void)SvUPGRADE(sv, SVt_PV); - len = *lp = strlen(tokenbuf); + *lp = len; s = SvGROW(sv, len + 1); SvCUR_set(sv, len); - (void)strcpy(s, tokenbuf); + (void)strcpy(s, t); SvPOKp_on(sv); return s; } @@ -1756,6 +1893,7 @@ register SV *sstr; } break; case SVt_PV: + case SVt_PVFM: if (dtype < SVt_PV) sv_upgrade(dstr, SVt_PV); break; @@ -1796,6 +1934,11 @@ register SV *sstr; GvNAMELEN(dstr) = len; SvFAKE_on(dstr); /* can coerce to non-glob */ } + /* ahem, death to those who redefine active sort subs */ + else if (curstack == sortstack + && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr))) + croak("Can't redefine active sort subroutine %s", + GvNAME(dstr)); (void)SvOK_off(dstr); GvINTRO_off(dstr); /* one-shot flag */ gp_free((GV*)dstr); @@ -1809,10 +1952,16 @@ register SV *sstr; /* FALL THROUGH */ default: + if (SvGMAGICAL(sstr)) { + mg_get(sstr); + if (SvTYPE(sstr) != stype) { + stype = SvTYPE(sstr); + if (stype == SVt_PVGV && dtype <= SVt_PVGV) + goto glob_assign; + } + } if (dtype < stype) sv_upgrade(dstr, stype); - if (SvGMAGICAL(sstr)) - mg_get(sstr); } sflags = SvFLAGS(sstr); @@ -1829,8 +1978,7 @@ register SV *sstr; GvGP(dstr)->gp_refcnt--; GvINTRO_off(dstr); /* one-shot flag */ Newz(602,gp, 1, GP); - GvGP(dstr) = gp; - GvREFCNT(dstr) = 1; + GvGP(dstr) = gp_ref(gp); GvSV(dstr) = NEWSV(72,0); GvLINE(dstr) = curcop->cop_line; GvEGV(dstr) = (GV*)dstr; @@ -1856,23 +2004,44 @@ register SV *sstr; GvIMPORTED_HV_on(dstr); break; case SVt_PVCV: - if (intro) + if (intro) { + if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { + SvREFCNT_dec(GvCV(dstr)); + GvCV(dstr) = Nullcv; + GvCVGEN(dstr) = 0; /* Switch off cacheness. */ + sub_generation++; + } SAVESPTR(GvCV(dstr)); - else { + } + else + dref = (SV*)GvCV(dstr); + if (GvCV(dstr) != (CV*)sref) { 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 (!GvCVGEN((GV*)dstr) && + (CvROOT(cv) || CvXSUB(cv))) + { + /* ahem, death to those who redefine + * active sort subs */ + if (curstack == sortstack && + sortcop == CvSTART(cv)) + croak( + "Can't redefine active sort subroutine %s", + GvENAME((GV*)dstr)); + if (cv_const_sv(cv)) + warn("Constant subroutine %s redefined", + GvENAME((GV*)dstr)); + else if (dowarn) + warn("Subroutine %s redefined", + GvENAME((GV*)dstr)); + } + cv_ckproto(cv, (GV*)dstr, + SvPOK(sref) ? SvPVX(sref) : Nullch); } - } - if (GvCV(dstr) != (CV*)sref) { GvCV(dstr) = (CV*)sref; + GvCVGEN(dstr) = 0; /* Switch off cacheness. */ GvASSUMECV_on(dstr); + sub_generation++; } if (curcop->cop_stash != GvSTASH(dstr)) GvIMPORTED_CV_on(dstr); @@ -1995,7 +2164,7 @@ register SV *sstr; void sv_setpvn(sv,ptr,len) register SV *sv; -register char *ptr; +register const char *ptr; register STRLEN len; { assert(len >= 0); /* STRLEN is probably unsigned, so this may @@ -2027,7 +2196,7 @@ register STRLEN len; void sv_setpv(sv,ptr) register SV *sv; -register char *ptr; +register const char *ptr; { register STRLEN len; @@ -2280,11 +2449,11 @@ I32 namlen; case 'l': mg->mg_virtual = &vtbl_dbline; break; -#ifdef HAS_STRXFRM +#ifdef USE_LOCALE_COLLATE case 'o': mg->mg_virtual = &vtbl_collxfrm; break; -#endif +#endif /* USE_LOCALE_COLLATE */ case 'P': mg->mg_virtual = &vtbl_pack; break; @@ -2311,6 +2480,9 @@ I32 namlen; case 'x': mg->mg_virtual = &vtbl_substr; break; + case 'y': + mg->mg_virtual = &vtbl_defelem; + break; case '*': mg->mg_virtual = &vtbl_glob; break; @@ -2479,6 +2651,7 @@ register SV *nsv; } SvREFCNT(sv) = 0; sv_clear(sv); + assert(!SvREFCNT(sv)); StructCopy(nsv,sv,SV); SvREFCNT(sv) = refcnt; SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ @@ -2493,30 +2666,35 @@ register SV *sv; assert(SvREFCNT(sv) == 0); if (SvOBJECT(sv)) { - dSP; - GV* destructor; - if (defstash) { /* Still have a symbol table? */ - destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); + dSP; + GV* destructor; ENTER; SAVEFREESV(SvSTASH(sv)); - if (destructor && GvCV(destructor)) { + + destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); + if (destructor) { SV ref; Zero(&ref, 1, SV); sv_upgrade(&ref, SVt_RV); SvRV(&ref) = SvREFCNT_inc(sv); SvROK_on(&ref); + SvREFCNT(&ref) = 1; /* Fake, but otherwise + creating+destructing a ref + leads to disaster. */ EXTEND(SP, 2); PUSHMARK(SP); PUSHs(&ref); PUTBACK; - perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); + perl_call_sv((SV*)GvCV(destructor), + G_DISCARD|G_EVAL|G_KEEPERR); del_XRV(SvANY(&ref)); SvREFCNT(sv)--; } + LEAVE; } else @@ -2527,7 +2705,7 @@ register SV *sv; --sv_objcount; /* XXX Might want something more general */ } if (SvREFCNT(sv)) { - SV *ret; + SV *ret; if ( perldb && (ret = perl_get_sv("DB::ret", FALSE)) && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) { @@ -2535,8 +2713,12 @@ register SV *sv; SvRV(ret) = 0; SvROK_off(ret); SvREFCNT(sv) = 0; - } else { - croak("panic: dangling references in DESTROY"); + } + else { + if (in_clean_objs) + croak("DESTROY created new reference to dead object"); + /* DESTROY gave object new lease on life */ + return; } } } @@ -2544,7 +2726,10 @@ register SV *sv; mg_free(sv); switch (SvTYPE(sv)) { case SVt_PVIO: - io_close((IO*)sv); + if (IoIFP(sv) != PerlIO_stdin() && + IoIFP(sv) != PerlIO_stdout() && + IoIFP(sv) != PerlIO_stderr()) + io_close((IO*)sv); Safefree(IoTOP_NAME(sv)); Safefree(IoFMT_NAME(sv)); Safefree(IoBOTTOM_NAME(sv)); @@ -2676,7 +2861,8 @@ SV *sv; } #endif sv_clear(sv); - del_SV(sv); + if (! SvREFCNT(sv)) + del_SV(sv); } STRLEN @@ -2721,7 +2907,7 @@ register SV *str2; if (cur1 != cur2) return 0; - return !memcmp(pv1, pv2, cur1); + return memEQ(pv1, pv2, cur1); } I32 @@ -2757,7 +2943,7 @@ sv_cmp_locale(sv1, sv2) register SV *sv1; register SV *sv2; { -#ifdef LC_COLLATE +#ifdef USE_LOCALE_COLLATE char *pv1, *pv2; STRLEN len1, len2; @@ -2797,46 +2983,55 @@ register SV *sv2; raw_compare: /* FALL THROUGH */ -#endif /* LC_COLLATE */ +#endif /* USE_LOCALE_COLLATE */ return sv_cmp(sv1, sv2); } -#ifdef LC_COLLATE - +#ifdef USE_LOCALE_COLLATE +/* + * Any scalar variable may carry an 'o' magic that contains the + * scalar data of the variable transformed to such a format that + * a normal memory comparison can be used to compare the data + * according to the locale settings. + */ char * sv_collxfrm(sv, nxp) SV *sv; STRLEN *nxp; { - /* Any scalar variable may carry an 'o' magic that contains the - * scalar data of the variable transformed to such a format that - * a normal memcmp() can be used to compare the data according - * to the locale settings. */ - - MAGIC *mg = NULL; + MAGIC *mg; - if (SvMAGICAL(sv)) { - mg = mg_find(sv, 'o'); - if (mg && *(U32*)mg->mg_ptr != collation_ix) - mg = NULL; - } - - if (! mg) { + mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL; + if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) { char *s, *xf; STRLEN len, xlen; + if (mg) + Safefree(mg->mg_ptr); s = SvPV(sv, len); if ((xf = mem_collxfrm(s, len, &xlen))) { - sv_magic(sv, 0, 'o', 0, 0); - if ((mg = mg_find(sv, 'o'))) { - mg->mg_ptr = xf; - mg->mg_len = xlen; + if (SvREADONLY(sv)) { + SAVEFREEPV(xf); + *nxp = xlen; + return xf; + } + if (! mg) { + sv_magic(sv, 0, 'o', 0, 0); + mg = mg_find(sv, 'o'); + assert(mg); + } + mg->mg_ptr = xf; + mg->mg_len = xlen; + } + else { + if (mg) { + mg->mg_ptr = NULL; + mg->mg_len = -1; } } } - - if (mg) { + if (mg && mg->mg_ptr) { *nxp = mg->mg_len; return mg->mg_ptr + sizeof(collation_ix); } @@ -2846,7 +3041,7 @@ sv_collxfrm(sv, nxp) } } -#endif /* LC_COLLATE */ +#endif /* USE_LOCALE_COLLATE */ char * sv_gets(sv,fp,append) @@ -2945,11 +3140,11 @@ I32 append; 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)); + "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)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)); + "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", + (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), + (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); for (;;) { screamer: if (cnt > 0) { @@ -2961,7 +3156,7 @@ I32 append; } } else { - memcpy((char*)bp, (char*)ptr, cnt); /* this | eat */ + Copy(ptr, bp, cnt, char); /* this | eat */ bp += cnt; /* screams | dust */ ptr += cnt; /* louder | sed :-) */ cnt = 0; @@ -2979,27 +3174,24 @@ I32 append; } DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: going to getc, ptr=%d, cnt=%d\n",ptr,cnt)); + "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: pre: FILE * thinks ptr=%d, cnt=%d, base=%d\n", - PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), - PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)); + "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", + (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), + (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); /* This used to call 'filbuf' in stdio form, but as that behaves like - getc when cnt <= 0 we use PerlIO_getc here to avoid another - abstraction. This may also avoid issues with different named - 'filbuf' equivalents, though Configure tries to handle them now - anyway. - */ + getc when cnt <= 0 we use PerlIO_getc here to avoid introducing + another abstraction. */ i = PerlIO_getc(fp); /* get more characters */ DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: post: FILE * thinks ptr=%d, cnt=%d, base=%d\n", - PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), - PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)); + "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", + (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), + (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); cnt = PerlIO_get_cnt(fp); ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: after getc, ptr=%d, cnt=%d\n",ptr,cnt)); + "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); if (i == EOF) /* all done for ever? */ goto thats_really_all_folks; @@ -3017,23 +3209,23 @@ I32 append; thats_all_folks: if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || - memcmp((char*)bp - rslen, rsptr, rslen)) + memNE((char*)bp - rslen, rsptr, rslen)) goto screamer; /* go back to the fray */ thats_really_all_folks: if (shortbuffered) cnt += shortbuffered; DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: quitting, ptr=%d, cnt=%d\n",ptr,cnt)); + "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ DEBUG_P(PerlIO_printf(Perl_debug_log, - "Screamer: end: FILE * thinks ptr=%d, cnt=%d, base=%d\n", - PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), - PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)); + "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", + (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), + (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); *bp = '\0'; SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: done, len=%d, string=|%.*s|\n", - SvCUR(sv),SvCUR(sv),SvPVX(sv))); + SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); } else { @@ -3064,10 +3256,22 @@ screamer2: if (i != EOF && /* joy */ (!rslen || SvCUR(sv) < rslen || - memcmp(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) + memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) { append = -1; - goto screamer2; + /* + * If we're reading from a TTY and we get a short read, + * indicating that the user hit his EOF character, we need + * to notice it now, because if we try to read from the TTY + * again, the EOF condition will disappear. + * + * The comparison of cnt to sizeof(buf) is an optimization + * that prevents unnecessary calls to feof(). + * + * - jik 9/25/96 + */ + if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) + goto screamer2; } } @@ -3132,7 +3336,7 @@ register SV *sv; while (isALPHA(*d)) d++; while (isDIGIT(*d)) d++; if (*d) { - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ return; } @@ -3203,7 +3407,7 @@ register SV *sv; (void)SvNOK_only(sv); return; } - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */ } @@ -3286,6 +3490,35 @@ STRLEN len; return sv; } +#ifdef I_STDARG +SV * +newSVpvf(const char* pat, ...) +#else +/*VARARGS0*/ +SV * +newSVpvf(pat, va_alist) +const char *pat; +va_dcl +#endif +{ + register SV *sv; + va_list args; + + new_SV(sv); + SvANY(sv) = 0; + SvREFCNT(sv) = 1; + SvFLAGS(sv) = 0; +#ifdef I_STDARG + va_start(args, pat); +#else + va_start(args); +#endif + sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); + return sv; +} + + SV * newSVnv(n) double n; @@ -3331,6 +3564,19 @@ SV *ref; return sv; } +#ifdef CRIPPLED_CC +SV * +newRV_noinc(ref) +SV *ref; +{ + register SV *sv; + + sv = newRV(ref); + SvREFCNT_dec(ref); + return sv; +} +#endif /* CRIPPLED_CC */ + /* make an exact duplicate of old */ SV * @@ -3405,16 +3651,14 @@ HV *stash; (void)SvOK_off(sv); if (SvTYPE(sv) >= SVt_PV) { SvCUR_set(sv, 0); - SvTAINT(sv); if (SvPVX(sv) != Nullch) *SvPVX(sv) = '\0'; + SvTAINT(sv); } if (GvAV(gv)) { av_clear(GvAV(gv)); } - if (GvHV(gv)) { - if (HvNAME(GvHV(gv))) - continue; + if (GvHV(gv) && !HvNAME(GvHV(gv))) { hv_clear(GvHV(gv)); #ifndef VMS /* VMS has no environ array */ if (gv == envgv) @@ -3426,6 +3670,40 @@ HV *stash; } } +IO* +sv_2io(sv) +SV *sv; +{ + IO* io; + GV* gv; + + switch (SvTYPE(sv)) { + case SVt_PVIO: + io = (IO*)sv; + break; + case SVt_PVGV: + gv = (GV*)sv; + io = GvIO(gv); + if (!io) + croak("Bad filehandle: %s", GvNAME(gv)); + break; + default: + if (!SvOK(sv)) + croak(no_usym, "filehandle"); + if (SvROK(sv)) + return sv_2io(SvRV(sv)); + gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO); + if (gv) + io = GvIO(gv); + else + io = 0; + if (!io) + croak("Bad filehandle: %s", SvPV(sv,na)); + break; + } + return io; +} + CV * sv_2cv(sv, st, gvp, lref) SV *sv; @@ -3473,20 +3751,20 @@ I32 lref; return Nullcv; *st = GvESTASH(gv); fix_gv: - if (lref && !GvCV(gv)) { + if (lref && !GvCVu(gv)) { SV *tmpsv; ENTER; tmpsv = NEWSV(704,0); gv_efullname3(tmpsv, gv, Nullch); - newSUB(start_subparse(), + newSUB(start_subparse(FALSE, 0), newSVOP(OP_CONST, 0, tmpsv), Nullop, Nullop); LEAVE; - if (!GvCV(gv)) + if (!GvCVu(gv)) croak("Unable to create sub named \"%s\"", SvPV(sv,na)); } - return GvCV(gv); + return GvCVu(gv); } } @@ -3653,6 +3931,10 @@ int sv_isobject(sv) SV *sv; { + if (!sv) + return 0; + if (SvGMAGICAL(sv)) + mg_get(sv); if (!SvROK(sv)) return 0; sv = (SV*)SvRV(sv); @@ -3666,6 +3948,10 @@ sv_isa(sv, name) SV *sv; char *name; { + if (!sv) + return 0; + if (SvGMAGICAL(sv)) + mg_get(sv); if (!SvROK(sv)) return 0; sv = (SV*)SvRV(sv); @@ -3753,19 +4039,23 @@ HV* stash; if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) { if (SvREADONLY(ref)) croak(no_modify); - if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO) - --sv_objcount; + if (SvOBJECT(ref)) { + if (SvTYPE(ref) != SVt_PVIO) + --sv_objcount; + SvREFCNT_dec(SvSTASH(ref)); + } } SvOBJECT_on(ref); - ++sv_objcount; + if (SvTYPE(ref) != SVt_PVIO) + ++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); - } + if (Gv_AMG(stash)) + SvAMAGIC_on(sv); + else + SvAMAGIC_off(sv); #endif /* OVERLOAD */ return sv; @@ -3800,40 +4090,6 @@ SV* sv; 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; @@ -3845,18 +4101,564 @@ void sv_untaint(sv) SV *sv; { - MAGIC *mg = mg_find(sv, 't'); - if (mg) - mg->mg_len &= ~1; + if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { + MAGIC *mg = mg_find(sv, 't'); + if (mg) + mg->mg_len &= ~1; + } } bool sv_tainted(sv) SV *sv; { - MAGIC *mg = mg_find(sv, 't'); - return (mg && ((mg->mg_len & 1) - || (mg->mg_len & 2) && mg->mg_obj == sv)); + if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { + MAGIC *mg = mg_find(sv, 't'); + if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) + return TRUE; + } + return FALSE; +} + +#ifdef I_STDARG +void +sv_setpvf(SV *sv, const char* pat, ...) +#else +/*VARARGS0*/ +void +sv_setpvf(sv, pat, va_alist) + SV *sv; + const char *pat; + va_dcl +#endif +{ + va_list args; +#ifdef I_STDARG + va_start(args, pat); +#else + va_start(args); +#endif + sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); +} + +#ifdef I_STDARG +void +sv_catpvf(SV *sv, const char* pat, ...) +#else +/*VARARGS0*/ +void +sv_catpvf(sv, pat, va_alist) + SV *sv; + const char *pat; + va_dcl +#endif +{ + va_list args; +#ifdef I_STDARG + va_start(args, pat); +#else + va_start(args); +#endif + sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + va_end(args); +} + +void +sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale) + SV *sv; + const char *pat; + STRLEN patlen; + va_list *args; + SV **svargs; + I32 svmax; + bool *used_locale; +{ + sv_setpvn(sv, "", 0); + sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale); +} + +void +sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale) + SV *sv; + const char *pat; + STRLEN patlen; + va_list *args; + SV **svargs; + I32 svmax; + bool *used_locale; +{ + char *p; + char *q; + char *patend; + STRLEN origlen; + I32 svix = 0; + static char nullstr[] = "(null)"; + + /* no matter what, this is a string now */ + (void)SvPV_force(sv, origlen); + + /* special-case "", "%s", and "%_" */ + if (patlen == 0) + return; + if (patlen == 2 && pat[0] == '%') { + switch (pat[1]) { + case 's': + if (args) { + char *s = va_arg(*args, char*); + sv_catpv(sv, s ? s : nullstr); + } + else if (svix < svmax) + sv_catsv(sv, *svargs); + return; + case '_': + if (args) { + sv_catsv(sv, va_arg(*args, SV*)); + return; + } + /* See comment on '_' below */ + break; + } + } + + patend = (char*)pat + patlen; + for (p = (char*)pat; p < patend; p = q) { + bool alt = FALSE; + bool left = FALSE; + char fill = ' '; + char plus = 0; + char intsize = 0; + STRLEN width = 0; + STRLEN zeros = 0; + bool has_precis = FALSE; + STRLEN precis = 0; + + char esignbuf[4]; + STRLEN esignlen = 0; + + char *eptr = Nullch; + STRLEN elen = 0; + char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */ + + static char *efloatbuf = Nullch; + static STRLEN efloatsize = 0; + + char c; + int i; + unsigned base; + IV iv; + UV uv; + double nv; + STRLEN have; + STRLEN need; + STRLEN gap; + + for (q = p; q < patend && *q != '%'; ++q) ; + if (q > p) { + sv_catpvn(sv, p, q - p); + p = q; + } + if (q++ >= patend) + break; + + /* FLAGS */ + + while (*q) { + switch (*q) { + case ' ': + case '+': + plus = *q++; + continue; + + case '-': + left = TRUE; + q++; + continue; + + case '0': + fill = *q++; + continue; + + case '#': + alt = TRUE; + q++; + continue; + + default: + break; + } + break; + } + + /* WIDTH */ + + switch (*q) { + case '1': case '2': case '3': + case '4': case '5': case '6': + case '7': case '8': case '9': + width = 0; + while (isDIGIT(*q)) + width = width * 10 + (*q++ - '0'); + break; + + case '*': + if (args) + i = va_arg(*args, int); + else + i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; + left |= (i < 0); + width = (i < 0) ? -i : i; + q++; + break; + } + + /* PRECISION */ + + if (*q == '.') { + q++; + if (*q == '*') { + if (args) + i = va_arg(*args, int); + else + i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; + precis = (i < 0) ? 0 : i; + q++; + } + else { + precis = 0; + while (isDIGIT(*q)) + precis = precis * 10 + (*q++ - '0'); + } + has_precis = TRUE; + } + + /* SIZE */ + + switch (*q) { + case 'l': +#if 0 /* when quads have better support within Perl */ + if (*(q + 1) == 'l') { + intsize = 'q'; + q += 2; + break; + } +#endif + /* FALL THROUGH */ + case 'h': + case 'V': + intsize = *q++; + break; + } + + /* CONVERSION */ + + switch (c = *q++) { + + /* STRINGS */ + + case '%': + eptr = q - 1; + elen = 1; + goto string; + + case 'c': + if (args) + c = va_arg(*args, int); + else + c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; + eptr = &c; + elen = 1; + goto string; + + case 's': + if (args) { + eptr = va_arg(*args, char*); + if (eptr) + elen = strlen(eptr); + else { + eptr = nullstr; + elen = sizeof nullstr - 1; + } + } + else if (svix < svmax) + eptr = SvPVx(svargs[svix++], elen); + goto string; + + case '_': + /* + * The "%_" hack might have to be changed someday, + * if ISO or ANSI decide to use '_' for something. + * So we keep it hidden from users' code. + */ + if (!args) + goto unknown; + eptr = SvPVx(va_arg(*args, SV*), elen); + + string: + if (has_precis && elen > precis) + elen = precis; + break; + + /* INTEGERS */ + + case 'p': + if (args) + uv = (UV)va_arg(*args, void*); + else + uv = (svix < svmax) ? (UV)svargs[svix++] : 0; + base = 16; + goto integer; + + case 'D': + intsize = 'l'; + /* FALL THROUGH */ + case 'd': + case 'i': + if (args) { + switch (intsize) { + case 'h': iv = (short)va_arg(*args, int); break; + default: iv = va_arg(*args, int); break; + case 'l': iv = va_arg(*args, long); break; + case 'V': iv = va_arg(*args, IV); break; + } + } + else { + iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; + switch (intsize) { + case 'h': iv = (short)iv; break; + default: iv = (int)iv; break; + case 'l': iv = (long)iv; break; + case 'V': break; + } + } + if (iv >= 0) { + uv = iv; + if (plus) + esignbuf[esignlen++] = plus; + } + else { + uv = -iv; + esignbuf[esignlen++] = '-'; + } + base = 10; + goto integer; + + case 'U': + intsize = 'l'; + /* FALL THROUGH */ + case 'u': + base = 10; + goto uns_integer; + + case 'O': + intsize = 'l'; + /* FALL THROUGH */ + case 'o': + base = 8; + goto uns_integer; + + case 'X': + case 'x': + base = 16; + + uns_integer: + if (args) { + switch (intsize) { + case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; + default: uv = va_arg(*args, unsigned); break; + case 'l': uv = va_arg(*args, unsigned long); break; + case 'V': uv = va_arg(*args, UV); break; + } + } + else { + uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0; + switch (intsize) { + case 'h': uv = (unsigned short)uv; break; + default: uv = (unsigned)uv; break; + case 'l': uv = (unsigned long)uv; break; + case 'V': break; + } + } + + integer: + eptr = ebuf + sizeof ebuf; + switch (base) { + unsigned dig; + case 16: + p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef"; + do { + dig = uv & 15; + *--eptr = p[dig]; + } while (uv >>= 4); + if (alt) { + esignbuf[esignlen++] = '0'; + esignbuf[esignlen++] = c; /* 'x' or 'X' */ + } + break; + case 8: + do { + dig = uv & 7; + *--eptr = '0' + dig; + } while (uv >>= 3); + if (alt && *eptr != '0') + *--eptr = '0'; + break; + default: /* it had better be ten or less */ + do { + dig = uv % base; + *--eptr = '0' + dig; + } while (uv /= base); + break; + } + elen = (ebuf + sizeof ebuf) - eptr; + if (has_precis && precis > elen) + zeros = precis - elen; + break; + + /* FLOATING POINT */ + + case 'F': + c = 'f'; /* maybe %F isn't supported here */ + /* FALL THROUGH */ + case 'e': case 'E': + case 'f': + case 'g': case 'G': + + /* This is evil, but floating point is even more evil */ + + if (args) + nv = va_arg(*args, double); + else + nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0; + + need = 0; + if (c != 'e' && c != 'E') { + i = PERL_INT_MIN; + (void)frexp(nv, &i); + if (i == PERL_INT_MIN) + die("panic: frexp"); + if (i > 0) + need = BIT_DIGITS(i); + } + need += has_precis ? precis : 6; /* known default */ + if (need < width) + need = width; + + need += 20; /* fudge factor */ + if (efloatsize < need) { + Safefree(efloatbuf); + efloatsize = need + 20; /* more fudge */ + New(906, efloatbuf, efloatsize, char); + } + + eptr = ebuf + sizeof ebuf; + *--eptr = '\0'; + *--eptr = c; + if (has_precis) { + base = precis; + do { *--eptr = '0' + (base % 10); } while (base /= 10); + *--eptr = '.'; + } + if (width) { + base = width; + do { *--eptr = '0' + (base % 10); } while (base /= 10); + } + if (fill == '0') + *--eptr = fill; + if (plus) + *--eptr = plus; + if (alt) + *--eptr = '#'; + *--eptr = '%'; + + (void)sprintf(efloatbuf, eptr, nv); + + eptr = efloatbuf; + elen = strlen(efloatbuf); + +#ifdef LC_NUMERIC + /* + * User-defined locales may include arbitrary characters. + * And, unfortunately, some system may alloc the "C" locale + * to be overridden by a malicious user. + */ + if (used_locale) + *used_locale = TRUE; +#endif /* LC_NUMERIC */ + + break; + + /* SPECIAL */ + + case 'n': + i = SvCUR(sv) - origlen; + if (args) { + switch (intsize) { + case 'h': *(va_arg(*args, short*)) = i; break; + default: *(va_arg(*args, int*)) = i; break; + case 'l': *(va_arg(*args, long*)) = i; break; + case 'V': *(va_arg(*args, IV*)) = i; break; + } + } + else if (svix < svmax) + sv_setuv(svargs[svix++], (UV)i); + continue; /* not "break" */ + + /* UNKNOWN */ + + default: + unknown: + if (!args && dowarn && + (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) { + SV *msg = sv_newmortal(); + sv_setpvf(msg, "Invalid conversion in %s: ", + (op->op_type == OP_PRTF) ? "printf" : "sprintf"); + if (c) + sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"", + c & 0xFF); + else + sv_catpv(msg, "end of string"); + warn("%_", msg); /* yes, this is reentrant */ + } + /* output mangled stuff */ + eptr = p; + elen = q - p; + break; + } + + have = esignlen + zeros + elen; + need = (have > width ? have : width); + gap = need - have; + + SvGROW(sv, SvCUR(sv) + need + 1); + p = SvEND(sv); + if (esignlen && fill == '0') { + for (i = 0; i < esignlen; i++) + *p++ = esignbuf[i]; + } + if (gap && !left) { + memset(p, fill, gap); + p += gap; + } + if (esignlen && fill != '0') { + for (i = 0; i < esignlen; i++) + *p++ = esignbuf[i]; + } + if (zeros) { + for (i = zeros; i; i--) + *p++ = '0'; + } + if (elen) { + memcpy(p, eptr, elen); + p += elen; + } + if (gap && left) { + memset(p, ' ', gap); + p += gap; + } + *p = '\0'; + SvCUR(sv) = p - SvPVX(sv); + } } #ifdef DEBUGGING @@ -3864,8 +4666,8 @@ void sv_dump(sv) SV* sv; { - char tmpbuf[1024]; - char *d = tmpbuf; + SV *d = sv_newmortal(); + char *s; U32 flags; U32 type; @@ -3877,132 +4679,128 @@ SV* sv; 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); + sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (", + (unsigned long)SvANY(sv), (long)SvREFCNT(sv)); + if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,"); + if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,"); + if (flags & SVs_PADMY) sv_catpv(d, "PADMY,"); + if (flags & SVs_TEMP) sv_catpv(d, "TEMP,"); + if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,"); + if (flags & SVs_GMG) sv_catpv(d, "GMG,"); + if (flags & SVs_SMG) sv_catpv(d, "SMG,"); + if (flags & SVs_RMG) sv_catpv(d, "RMG,"); + + if (flags & SVf_IOK) sv_catpv(d, "IOK,"); + if (flags & SVf_NOK) sv_catpv(d, "NOK,"); + if (flags & SVf_POK) sv_catpv(d, "POK,"); + if (flags & SVf_ROK) sv_catpv(d, "ROK,"); + if (flags & SVf_OOK) sv_catpv(d, "OOK,"); + if (flags & SVf_FAKE) sv_catpv(d, "FAKE,"); + if (flags & SVf_READONLY) sv_catpv(d, "READONLY,"); #ifdef OVERLOAD - if (flags & SVf_AMAGIC) strcat(d, "OVERLOAD,"); + if (flags & SVf_AMAGIC) sv_catpv(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,"); + if (flags & SVp_IOK) sv_catpv(d, "pIOK,"); + if (flags & SVp_NOK) sv_catpv(d, "pNOK,"); + if (flags & SVp_POK) sv_catpv(d, "pPOK,"); + if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,"); switch (type) { case SVt_PVCV: - if (CvANON(sv)) strcat(d, "ANON,"); - if (CvCLONE(sv)) strcat(d, "CLONE,"); - if (CvCLONED(sv)) strcat(d, "CLONED,"); - break; + case SVt_PVFM: + if (CvANON(sv)) sv_catpv(d, "ANON,"); + if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,"); + if (CvCLONE(sv)) sv_catpv(d, "CLONE,"); + if (CvCLONED(sv)) sv_catpv(d, "CLONED,"); + if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,"); + break; case SVt_PVHV: - if (HvSHAREKEYS(sv)) strcat(d, "SHAREKEYS,"); - if (HvLAZYDEL(sv)) strcat(d, "LAZYDEL,"); - break; + if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,"); + if (HvLAZYDEL(sv)) sv_catpv(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 */ + if (GvINTRO(sv)) sv_catpv(d, "INTRO,"); + if (GvMULTI(sv)) sv_catpv(d, "MULTI,"); + if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,"); + if (GvIMPORTED(sv)) { + sv_catpv(d, "IMPORT"); + if (GvIMPORTED(sv) == GVf_IMPORTED) + sv_catpv(d, "ALL,"); + else { + sv_catpv(d, "("); + if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV"); + if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV"); + if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV"); + if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV"); + sv_catpv(d, " ),"); + } + } } - d += strlen(d); - if (d[-1] == ',') - d--; - *d++ = ')'; - *d = '\0'; + if (*(SvEND(d) - 1) == ',') + SvPVX(d)[--SvCUR(d)] = '\0'; + sv_catpv(d, ")"); + s = SvPVX(d); PerlIO_printf(Perl_debug_log, "SV = "); switch (type) { case SVt_NULL: - PerlIO_printf(Perl_debug_log, "NULL%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "NULL%s\n", s); return; case SVt_IV: - PerlIO_printf(Perl_debug_log, "IV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "IV%s\n", s); break; case SVt_NV: - PerlIO_printf(Perl_debug_log, "NV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "NV%s\n", s); break; case SVt_RV: - PerlIO_printf(Perl_debug_log, "RV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "RV%s\n", s); break; case SVt_PV: - PerlIO_printf(Perl_debug_log, "PV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PV%s\n", s); break; case SVt_PVIV: - PerlIO_printf(Perl_debug_log, "PVIV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVIV%s\n", s); break; case SVt_PVNV: - PerlIO_printf(Perl_debug_log, "PVNV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVNV%s\n", s); break; case SVt_PVBM: - PerlIO_printf(Perl_debug_log, "PVBM%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVBM%s\n", s); break; case SVt_PVMG: - PerlIO_printf(Perl_debug_log, "PVMG%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVMG%s\n", s); break; case SVt_PVLV: - PerlIO_printf(Perl_debug_log, "PVLV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVLV%s\n", s); break; case SVt_PVAV: - PerlIO_printf(Perl_debug_log, "PVAV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVAV%s\n", s); break; case SVt_PVHV: - PerlIO_printf(Perl_debug_log, "PVHV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVHV%s\n", s); break; case SVt_PVCV: - PerlIO_printf(Perl_debug_log, "PVCV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVCV%s\n", s); break; case SVt_PVGV: - PerlIO_printf(Perl_debug_log, "PVGV%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVGV%s\n", s); break; case SVt_PVFM: - PerlIO_printf(Perl_debug_log, "PVFM%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVFM%s\n", s); break; case SVt_PVIO: - PerlIO_printf(Perl_debug_log, "PVIO%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "PVIO%s\n", s); break; default: - PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", tmpbuf); + PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s); return; } if (type >= SVt_PVIV || type == SVt_IV) PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv)); if (type >= SVt_PVNV || type == SVt_NV) { - NUMERIC_STANDARD(); + SET_NUMERIC_STANDARD(); PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv)); } if (SvROK(sv)) { @@ -4041,14 +4839,12 @@ SV* 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); + sv_setpv(d, ""); + if (flags & AVf_REAL) sv_catpv(d, ",REAL"); + if (flags & AVf_REIFY) sv_catpv(d, ",REIFY"); + if (flags & AVf_REUSED) sv_catpv(d, ",REUSED"); + PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n", + SvCUR(d) ? SvPVX(d) + 1 : ""); break; case SVt_PVHV: PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv)); @@ -4062,10 +4858,11 @@ SV* 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)); + /* FALL THROUGH */ + case SVt_PVFM: PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv)); PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv)); PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));