X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=mg.c;h=96d268bfc71517267f33815eb73e36dcd1e4ddcc;hb=ccc2aad8d8e6103f3ad40cea21552777ca27f419;hp=0f25d95393dba961f1ec178cc263fefab2b5ab69;hpb=2b260de0f3727bc62519897f69d6f752c97d8502;p=p5sagit%2Fp5-mst-13.2.git diff --git a/mg.c b/mg.c index 0f25d95..96d268b 100644 --- a/mg.c +++ b/mg.c @@ -1,6 +1,6 @@ /* mg.c * - * Copyright (c) 1991-1999, Larry Wall + * Copyright (c) 1991-2000, 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. @@ -60,6 +60,14 @@ S_save_magic(pTHX_ I32 mgs_ix, SV *sv) SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; } +/* +=for apidoc mg_magical + +Turns on the magical status of an SV. See C. + +=cut +*/ + void Perl_mg_magical(pTHX_ SV *sv) { @@ -77,6 +85,14 @@ Perl_mg_magical(pTHX_ SV *sv) } } +/* +=for apidoc mg_get + +Do magic after a value is retrieved from the SV. See C. + +=cut +*/ + int Perl_mg_get(pTHX_ SV *sv) { @@ -112,6 +128,14 @@ Perl_mg_get(pTHX_ SV *sv) return 0; } +/* +=for apidoc mg_set + +Do magic after a value is assigned to the SV. See C. + +=cut +*/ + int Perl_mg_set(pTHX_ SV *sv) { @@ -138,6 +162,14 @@ Perl_mg_set(pTHX_ SV *sv) return 0; } +/* +=for apidoc mg_length + +Report on the SV's length. See C. + +=cut +*/ + U32 Perl_mg_length(pTHX_ SV *sv) { @@ -196,6 +228,14 @@ Perl_mg_size(pTHX_ SV *sv) return 0; } +/* +=for apidoc mg_clear + +Clear something magical that the SV represents. See C. + +=cut +*/ + int Perl_mg_clear(pTHX_ SV *sv) { @@ -217,6 +257,14 @@ Perl_mg_clear(pTHX_ SV *sv) return 0; } +/* +=for apidoc mg_find + +Finds the magic pointer for type matching the SV. See C. + +=cut +*/ + MAGIC* Perl_mg_find(pTHX_ SV *sv, int type) { @@ -228,6 +276,14 @@ Perl_mg_find(pTHX_ SV *sv, int type) return 0; } +/* +=for apidoc mg_copy + +Copies the magic from one SV to another. See C. + +=cut +*/ + int Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) { @@ -244,6 +300,14 @@ Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) return count; } +/* +=for apidoc mg_free + +Free any magic storage used by the SV. See C. + +=cut +*/ + int Perl_mg_free(pTHX_ SV *sv) { @@ -275,10 +339,7 @@ U32 Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) { dTHR; - register char *s; - register I32 i; register REGEXP *rx; - char *t; if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { if (mg->mg_obj) /* @+ */ @@ -323,10 +384,8 @@ Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) { dTHR; register I32 paren; - register char *s; register I32 i; register REGEXP *rx; - char *t; switch (*mg->mg_ptr) { case '1': case '2': case '3': case '4': @@ -394,7 +453,6 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) register char *s; register I32 i; register REGEXP *rx; - char *t; switch (*mg->mg_ptr) { case '\001': /* ^A */ @@ -406,8 +464,19 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) case '\004': /* ^D */ sv_setiv(sv, (IV)(PL_debug & 32767)); +#if defined(YYDEBUG) && defined(DEBUGGING) + PL_yydebug = (PL_debug & 1); +#endif break; case '\005': /* ^E */ +#ifdef MACOS_TRADITIONAL + { + char msg[256]; + + sv_setnv(sv,(double)gLastMacOSErr); + sv_setpv(sv, gLastMacOSErr ? GetSysErrText(gLastMacOSErr, msg) : ""); + } +#else #ifdef VMS { # include @@ -453,6 +522,7 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) #endif #endif #endif +#endif SvNOK_on(sv); /* what a wonderful hack! */ break; case '\006': /* ^F */ @@ -477,7 +547,7 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) { dTHR; if (PL_lex_state != LEX_NOTPARSING) - SvOK_off(sv); + (void)SvOK_off(sv); else if (PL_in_eval) sv_setiv(sv, 1); else @@ -491,10 +561,10 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) sv_setiv(sv, (IV)PL_basetime); #endif break; - case '\027': /* ^W & $^Warnings*/ + case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ if (*(mg->mg_ptr+1) == '\0') sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); - else if (strEQ(mg->mg_ptr, "\027arnings")) { + else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { if (PL_compiling.cop_warnings == WARN_NONE || PL_compiling.cop_warnings == WARN_STD) { @@ -507,6 +577,8 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) sv_setsv(sv, PL_compiling.cop_warnings); } } + else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) + sv_setiv(sv, (IV)PL_widesyscalls); break; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case '&': @@ -533,6 +605,10 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) PL_tainted = FALSE; } sv_setpvn(sv, s, i); + if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) + SvUTF8_on(sv); + else + SvUTF8_off(sv); if (PL_tainting) PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); break; @@ -656,26 +732,32 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) break; case '(': sv_setiv(sv, (IV)PL_gid); - Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_gid); +#ifdef HAS_GETGROUPS + Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); +#endif goto add_groups; case ')': sv_setiv(sv, (IV)PL_egid); - Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_egid); +#ifdef HAS_GETGROUPS + Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); +#endif add_groups: #ifdef HAS_GETGROUPS { Groups_t gary[NGROUPS]; i = getgroups(NGROUPS,gary); while (--i >= 0) - Perl_sv_catpvf(aTHX_ sv, " %Vd", (IV)gary[i]); + Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); } #endif - SvIOK_on(sv); /* what a wonderful hack! */ + (void)SvIOK_on(sv); /* what a wonderful hack! */ break; case '*': break; +#ifndef MACOS_TRADITIONAL case '0': break; +#endif #ifdef USE_THREADS case '@': sv_setsv(sv, thr->errsv); @@ -791,7 +873,7 @@ Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) STRLEN n_a; magic_clear_all_env(sv,mg); hv_iterinit((HV*)sv); - while (entry = hv_iternext((HV*)sv)) { + while ((entry = hv_iternext((HV*)sv))) { I32 keylen; my_setenv(hv_iterkey(entry, &keylen), SvPV(hv_iterval((HV*)sv, entry), n_a)); @@ -807,7 +889,10 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) #if defined(VMS) Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); #else -# ifdef WIN32 +# ifdef PERL_IMPLICIT_SYS + PerlEnv_clearenv(); +# else +# ifdef WIN32 char *envv = GetEnvironmentStrings(); char *cur = envv; STRLEN len; @@ -823,13 +908,13 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) cur += len+1; } FreeEnvironmentStrings(envv); -# else -# ifdef CYGWIN +# else +# ifdef __CYGWIN__ I32 i; for (i = 0; environ[i]; i++) - Safefree(environ[i]); -# else -# ifndef PERL_USE_SAFE_PUTENV + safesysfree(environ[i]); +# else +# ifndef PERL_USE_SAFE_PUTENV I32 i; if (environ == PL_origenviron) @@ -837,12 +922,13 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) else for (i = 0; environ[i]; i++) safesysfree(environ[i]); -# endif /* PERL_USE_SAFE_PUTENV */ -# endif /* CYGWIN */ +# endif /* PERL_USE_SAFE_PUTENV */ +# endif /* __CYGWIN__ */ environ[0] = Nullch; -# endif /* WIN32 */ +# endif /* WIN32 */ +# endif /* PERL_IMPLICIT_SYS */ #endif /* VMS */ return 0; } @@ -917,7 +1003,7 @@ Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) else { i = whichsig(s); /* ...no, a brick */ if (!i) { - if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) + if (ckWARN(WARN_SIGNAL)) Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); return 0; } @@ -993,7 +1079,7 @@ Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) i = HvKEYS(hv); else { /*SUPPRESS 560*/ - while (entry = hv_iternext(hv)) { + while ((entry = hv_iternext(hv))) { i++; } } @@ -1167,7 +1253,7 @@ Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) i = SvTRUE(sv); svp = av_fetch(GvAV(gv), atoi(MgPV(mg,n_a)), FALSE); - if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) + if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) o->op_private = i; else if (ckWARN_d(WARN_INTERNAL)) Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); @@ -1200,7 +1286,7 @@ Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) if (mg && mg->mg_len >= 0) { dTHR; I32 i = mg->mg_len; - if (IN_UTF8) + if (DO_UTF8(lsv)) sv_pos_b2u(lsv, &i); sv_setiv(sv, i + PL_curcop->cop_arybase); return 0; @@ -1216,7 +1302,7 @@ Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) SV* lsv = LvTARG(sv); SSize_t pos; STRLEN len; - STRLEN ulen; + STRLEN ulen = 0; dTHR; mg = 0; @@ -1237,12 +1323,10 @@ Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) pos = SvIV(sv) - PL_curcop->cop_arybase; - if (IN_UTF8) { + if (DO_UTF8(lsv)) { ulen = sv_len_utf8(lsv); if (ulen) len = ulen; - else - ulen = 0; } if (pos < 0) { @@ -1330,7 +1414,7 @@ Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) { dTHR; TAINT_IF((mg->mg_len & 1) || - (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ + ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ return 0; } @@ -1357,7 +1441,7 @@ Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) SV *lsv = LvTARG(sv); if (!lsv) { - SvOK_off(sv); + (void)SvOK_off(sv); return 0; } @@ -1480,7 +1564,7 @@ Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) Perl_croak(aTHX_ "panic: magic_killbackrefs"); /* XXX Should we check that it hasn't changed? */ SvRV(svp[i]) = 0; - SvOK_off(svp[i]); + (void)SvOK_off(svp[i]); SvWEAKREF_off(svp[i]); svp[i] = &PL_sv_undef; } @@ -1568,15 +1652,19 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) DEBUG_x(dump_all()); break; case '\005': /* ^E */ -#ifdef VMS - set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); +#ifdef MACOS_TRADITIONAL + gLastMacOSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); #else -# ifdef WIN32 - SetLastError( SvIV(sv) ); +# ifdef VMS + set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); # else -# ifndef OS2 +# ifdef WIN32 + SetLastError( SvIV(sv) ); +# else +# ifndef OS2 /* will anyone ever use this? */ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); +# endif # endif # endif #endif @@ -1615,7 +1703,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); #endif break; - case '\027': /* ^W & $^Warnings */ + case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ if (*(mg->mg_ptr+1) == '\0') { if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); @@ -1623,8 +1711,13 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) | (i ? G_WARN_ON : G_WARN_OFF) ; } } - else if (strEQ(mg->mg_ptr, "\027arnings")) { + else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { + if (!SvPOK(sv) && PL_localizing) { + sv_setpvn(sv, WARN_NONEstring, WARNsize); + PL_compiling.cop_warnings = WARN_NONE; + break; + } if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) { PL_compiling.cop_warnings = WARN_ALL; PL_dowarn |= G_WARN_ONCE ; @@ -1640,12 +1733,14 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) PL_dowarn |= G_WARN_ONCE ; } } - } + } + else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) + PL_widesyscalls = SvTRUE(sv); break; case '.': if (PL_localizing) { if (PL_localizing == 1) - save_sptr((SV**)&PL_last_in_gv); + SAVESPTR(PL_last_in_gv); } else if (SvOK(sv) && GvIO(PL_last_in_gv)) IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); @@ -1699,8 +1794,10 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) case '\\': if (PL_ors) Safefree(PL_ors); - if (SvOK(sv) || SvGMAGICAL(sv)) - PL_ors = savepv(SvPV(sv,PL_orslen)); + if (SvOK(sv) || SvGMAGICAL(sv)) { + s = SvPV(sv,PL_orslen); + PL_ors = savepvn(s,PL_orslen); + } else { PL_ors = Nullch; PL_orslen = 0; @@ -1871,6 +1968,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) case ':': PL_chopset = SvPV_force(sv,len); break; +#ifndef MACOS_TRADITIONAL case '0': if (!PL_origalen) { s = PL_origargv[0]; @@ -1928,6 +2026,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) PL_origargv[i] = Nullch; } break; +#endif #ifdef USE_THREADS case '@': sv_setsv(thr->errsv, sv); @@ -1942,8 +2041,9 @@ int Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) { dTHR; - DEBUG_S(PerlIO_printf(Perl_debug_log, "0x%lx: magic_mutexfree 0x%lx\n", - (unsigned long)thr, (unsigned long)sv);) + DEBUG_S(PerlIO_printf(Perl_debug_log, + "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", + PTR2UV(thr), PTR2UV(sv));) if (MgOWNER(mg)) Perl_croak(aTHX_ "panic: magic_mutexfree"); MUTEX_DESTROY(MgMUTEXP(mg)); @@ -1984,7 +2084,7 @@ Perl_sighandler(int sig) CV *cv = Nullcv; OP *myop = PL_op; U32 flags = 0; - I32 o_save_i = PL_savestack_ix, type; + I32 o_save_i = PL_savestack_ix; XPV *tXpv = PL_Xpv; if (PL_savestack_ix + 15 <= PL_savestack_max) @@ -2067,7 +2167,6 @@ cleanup: #ifdef PERL_OBJECT -#define NO_XSLOCKS #include "XSUB.h" #endif @@ -2075,7 +2174,7 @@ static void restore_magic(pTHXo_ void *p) { dTHR; - MGS* mgs = SSPTR((I32)p, MGS*); + MGS* mgs = SSPTR(PTR2IV(p), MGS*); SV* sv = mgs->mgs_sv; if (!sv)