/* pp_hot.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.
/* Hot code. */
+#ifdef USE_THREADS
+static void
+unset_cvowner(cvarg)
+void *cvarg;
+{
+ register CV* cv = (CV *) cvarg;
+#ifdef DEBUGGING
+ dTHR;
+#endif /* DEBUGGING */
+
+ DEBUG_L((PerlIO_printf(PerlIO_stderr(), "0x%lx unsetting CvOWNER of 0x%lx:%s\n",
+ (unsigned long)thr, (unsigned long)cv, SvPEEK((SV*)cv))));
+ MUTEX_LOCK(CvMUTEXP(cv));
+ DEBUG_L(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ assert(thr == CvOWNER(cv));
+ CvOWNER(cv) = 0;
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ SvREFCNT_dec(cv);
+}
+#endif /* USE_THREADS */
+
PP(pp_const)
{
dSP;
RETURN;
}
+PP(pp_gelem)
+{
+ GV *gv;
+ SV *sv;
+ SV *ref;
+ char *elem;
+ dSP;
+
+ sv = POPs;
+ elem = SvPV(sv, na);
+ gv = (GV*)POPs;
+ ref = Nullsv;
+ sv = Nullsv;
+ switch (elem ? *elem : '\0')
+ {
+ case 'A':
+ if (strEQ(elem, "ARRAY"))
+ ref = (SV*)GvAV(gv);
+ break;
+ case 'C':
+ if (strEQ(elem, "CODE"))
+ ref = (SV*)GvCVu(gv);
+ break;
+ case 'F':
+ if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
+ ref = (SV*)GvIOp(gv);
+ break;
+ case 'G':
+ if (strEQ(elem, "GLOB"))
+ ref = (SV*)gv;
+ break;
+ case 'H':
+ if (strEQ(elem, "HASH"))
+ ref = (SV*)GvHV(gv);
+ break;
+ case 'I':
+ if (strEQ(elem, "IO"))
+ ref = (SV*)GvIOp(gv);
+ break;
+ case 'N':
+ if (strEQ(elem, "NAME"))
+ sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
+ break;
+ case 'P':
+ if (strEQ(elem, "PACKAGE"))
+ sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
+ break;
+ case 'S':
+ if (strEQ(elem, "SCALAR"))
+ ref = GvSV(gv);
+ break;
+ }
+ if (ref)
+ sv = newRV(ref);
+ if (sv)
+ sv_2mortal(sv);
+ else
+ sv = &sv_undef;
+ XPUSHs(sv);
+ RETURN;
+}
+
PP(pp_and)
{
dSP;
SV *temp;
temp = left; left = right; right = temp;
}
- if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) ||
- !((mg = mg_find(left, 't')) && mg->mg_len & 1)))
- {
+ if (tainting && tainted && !SvTAINTED(left))
TAINT_NOT;
- }
- SvSetSV(right, left);
- SvSETMAGIC(right);
+ SvSetMagicSV(right, left);
SETs(right);
RETURN;
}
return NORMAL;
}
-PP(pp_seq)
-{
- dSP; tryAMAGICbinSET(seq,0);
- {
- dPOPTOPssrl;
- SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
- RETURN;
- }
-}
-
PP(pp_concat)
{
dSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
dPOPTOPssrl;
STRLEN len;
char *s;
- if (SvGMAGICAL(left))
- mg_get(left);
if (TARG != left) {
s = SvPV(left,len);
sv_setpvn(TARG,s,len);
}
- else if (!SvOK(TARG))
+ else if (SvGMAGICAL(TARG))
+ mg_get(TARG);
+ else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) {
sv_setpv(TARG, ""); /* Suppress warning. */
+ s = SvPV_force(TARG, len);
+ }
s = SvPV(right,len);
- sv_catpvn(TARG,s,len);
+ if (SvOK(TARG))
+ sv_catpvn(TARG,s,len);
+ else
+ sv_setpvn(TARG,s,len); /* suppress warning */
SETTARG;
RETURN;
}
{
dSP; dTARGET;
XPUSHs(TARG);
- if (op->op_private & OPpLVAL_INTRO)
- SAVECLEARSV(curpad[op->op_targ]);
+ if (op->op_flags & OPf_MOD) {
+ if (op->op_private & OPpLVAL_INTRO)
+ SAVECLEARSV(curpad[op->op_targ]);
+ else if (op->op_private & OPpDEREF)
+ vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF);
+ }
RETURN;
}
dSP; tryAMAGICbinSET(eq,0);
{
dPOPnv;
- SETs((TOPn == value) ? &sv_yes : &sv_no);
+ SETs(boolSV(TOPn == value));
RETURN;
}
}
PP(pp_preinc)
{
dSP;
- if (SvIOK(TOPs)) {
+ if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
+ croak(no_modify);
+ if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
+ SvIVX(TOPs) != IV_MAX)
+ {
++SvIVX(TOPs);
- SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
+ SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
}
else
sv_inc(TOPs);
{
dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
{
- dPOPTOPnnrl;
+ dPOPTOPnnrl_ul;
SETn( left + right );
RETURN;
}
PP(pp_pushre)
{
dSP;
+#ifdef DEBUGGING
+ /*
+ * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs
+ * will be enough to hold an OP*.
+ */
+ SV* sv = sv_newmortal();
+ sv_upgrade(sv, SVt_PVLV);
+ LvTYPE(sv) = '/';
+ Copy(&op, &LvTARGOFF(sv), 1, OP*);
+ XPUSHs(sv);
+#else
XPUSHs((SV*)op);
+#endif
RETURN;
}
dSP; dMARK; dORIGMARK;
GV *gv;
IO *io;
- register FILE *fp;
+ register PerlIO *fp;
+ MAGIC *mg;
if (op->op_flags & OPf_STACKED)
gv = (GV*)*++MARK;
else
gv = defoutgv;
+ if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
+ if (MARK == ORIGMARK) {
+ EXTEND(SP, 1);
+ ++MARK;
+ Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
+ ++SP;
+ }
+ PUSHMARK(MARK - 1);
+ *MARK = mg->mg_obj;
+ PUTBACK;
+ ENTER;
+ perl_call_method("PRINT", G_SCALAR);
+ LEAVE;
+ SPAGAIN;
+ MARK = ORIGMARK + 1;
+ *MARK = *SP;
+ SP = MARK;
+ RETURN;
+ }
if (!(io = GvIO(gv))) {
if (dowarn) {
SV* sv = sv_newmortal();
- gv_fullname(sv,gv);
+ gv_fullname3(sv, gv, Nullch);
warn("Filehandle %s never opened", SvPV(sv,na));
}
else if (!(fp = IoOFP(io))) {
if (dowarn) {
SV* sv = sv_newmortal();
- gv_fullname(sv,gv);
+ gv_fullname3(sv, gv, Nullch);
if (IoIFP(io))
warn("Filehandle %s opened only for input", SvPV(sv,na));
else
break;
MARK++;
if (MARK <= SP) {
- if (fwrite1(ofs, 1, ofslen, fp) == 0 || ferror(fp)) {
+ if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) {
MARK--;
break;
}
goto just_say_no;
else {
if (orslen)
- if (fwrite1(ors, 1, orslen, fp) == 0 || ferror(fp))
+ if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp))
goto just_say_no;
if (IoFLAGS(io) & IOf_FLUSH)
- if (fflush(fp) == EOF)
+ if (PerlIO_flush(fp) == EOF)
goto just_say_no;
}
}
PP(pp_rv2av)
{
dSP; dPOPss;
-
AV *av;
if (SvROK(sv)) {
av = (AV*)SvRV(sv);
if (SvTYPE(av) != SVt_PVAV)
DIE("Not an ARRAY reference");
- if (op->op_private & OPpLVAL_INTRO)
- av = (AV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
}
}
else {
+ GV *gv;
+
if (SvTYPE(sv) != SVt_PVGV) {
char *sym;
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "an ARRAY");
+ if (dowarn)
+ warn(warn_uninit);
+ if (GIMME == G_ARRAY)
+ RETURN;
RETPUSHUNDEF;
}
sym = SvPV(sv,na);
if (op->op_private & HINT_STRICT_REFS)
DIE(no_symref, sym, "an ARRAY");
- sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
+ gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
+ } else {
+ gv = (GV*)sv;
}
- av = GvAVn(sv);
+ av = GvAVn(gv);
if (op->op_private & OPpLVAL_INTRO)
- av = save_ary(sv);
+ av = save_ary(gv);
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
PP(pp_rv2hv)
{
-
dSP; dTOPss;
-
HV *hv;
if (SvROK(sv)) {
wasref:
hv = (HV*)SvRV(sv);
- if (SvTYPE(hv) != SVt_PVHV)
+ if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV)
DIE("Not a HASH reference");
- if (op->op_private & OPpLVAL_INTRO)
- hv = (HV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
- if (SvTYPE(sv) == SVt_PVHV) {
+ if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) {
hv = (HV*)sv;
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
}
}
else {
+ GV *gv;
+
if (SvTYPE(sv) != SVt_PVGV) {
char *sym;
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "a HASH");
+ if (dowarn)
+ warn(warn_uninit);
+ if (GIMME == G_ARRAY) {
+ SP--;
+ RETURN;
+ }
RETSETUNDEF;
}
sym = SvPV(sv,na);
if (op->op_private & HINT_STRICT_REFS)
DIE(no_symref, sym, "a HASH");
- sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
+ gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
+ } else {
+ gv = (GV*)sv;
}
- hv = GvHVn(sv);
+ hv = GvHVn(gv);
if (op->op_private & OPpLVAL_INTRO)
- hv = save_hash(sv);
+ hv = save_hash(gv);
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
else {
dTARGET;
- if (HvFILL(hv)) {
- sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1);
- sv_setpv(TARG, buf);
- }
+ /* This bit is OK even when hv is really an AV */
+ if (HvFILL(hv))
+ sv_setpvf(TARG, "%ld/%ld",
+ (long)HvFILL(hv), (long)HvMAX(hv) + 1);
else
sv_setiv(TARG, 0);
+
SETTARG;
RETURN;
}
register SV *sv;
register AV *ary;
+ I32 gimme;
HV *hash;
I32 i;
int magic;
if (op->op_private & OPpASSIGN_COMMON) {
for (relem = firstrelem; relem <= lastrelem; relem++) {
/*SUPPRESS 560*/
- if (sv = *relem)
+ if (sv = *relem) {
+ TAINT_NOT; /* Each item is independent */
*relem = sv_mortalcopy(sv);
+ }
}
}
ary = Null(AV*);
hash = Null(HV*);
while (lelem <= lastlelem) {
+ TAINT_NOT; /* Each item stands on its own, taintwise. */
sv = *lelem++;
switch (SvTYPE(sv)) {
case SVt_PVAV:
magic = SvMAGICAL(ary) != 0;
av_clear(ary);
+ av_extend(ary, lastrelem - relem);
i = 0;
while (relem <= lastrelem) { /* gobble up all the rest */
+ SV **didstore;
sv = NEWSV(28,0);
assert(*relem);
sv_setsv(sv,*relem);
*(relem++) = sv;
- (void)av_store(ary,i++,sv);
- if (magic)
+ didstore = av_store(ary,i++,sv);
+ if (magic) {
mg_set(sv);
+ if (!didstore)
+ SvREFCNT_dec(sv);
+ }
+ TAINT_NOT;
}
- if (!i)
- av_extend(ary, 0);
break;
case SVt_PVHV: {
- char *tmps;
SV *tmpstr;
hash = (HV*)sv;
while (relem < lastrelem) { /* gobble up all the rest */
STRLEN len;
- if (*relem) {
+ HE *didstore;
+ if (*relem)
sv = *(relem++);
- if (dowarn && SvROK(sv)) /* Tom's gripe */
- warn("Attempt to use reference as hash key");
- }
- else
+ else
sv = &sv_no, relem++;
- tmps = SvPV(sv, len);
tmpstr = NEWSV(29,0);
if (*relem)
sv_setsv(tmpstr,*relem); /* value */
*(relem++) = tmpstr;
- (void)hv_store(hash,tmps,len,tmpstr,0);
- if (magic)
+ didstore = hv_store_ent(hash,sv,tmpstr,0);
+ if (magic) {
mg_set(tmpstr);
- }
- if (relem == lastrelem) {
- warn("Odd number of elements in hash list");
- if (*relem) {
- STRLEN len;
- sv = *relem;
- if (dowarn && SvROK(sv)) /* Tom's gripe */
- warn("Attempt to use reference as hash key");
- tmps = SvPV(sv, len);
- tmpstr = NEWSV(29,0);
- (void) hv_store(hash, tmps, len, tmpstr, 0);
- if (magic)
- mg_set(tmpstr);
+ if (!didstore)
+ SvREFCNT_dec(tmpstr);
}
- relem++; /* allow for (%a,%b) = 1; */
- }
- if (!HvARRAY(hash) && !magic) {
- Newz(42, hash->sv_any->xhv_array,
- sizeof(HE*) * (HvMAX(hash)+1), char);
+ TAINT_NOT;
}
+ if (relem == lastrelem)
+ warn("Odd number of elements in hash list");
}
break;
default:
gid = (int)getgid();
egid = (int)getegid();
}
- tainting |= (euid != uid || egid != gid);
+ tainting |= (uid && (euid != uid || egid != gid));
}
delaymagic = 0;
- if (GIMME == G_ARRAY) {
+
+ gimme = GIMME_V;
+ if (gimme == G_VOID)
+ SP = firstrelem - 1;
+ else if (gimme == G_SCALAR) {
+ dTARGET;
+ SP = firstrelem;
+ SETi(lastrelem - firstrelem + 1);
+ }
+ else {
if (ary || hash)
SP = lastrelem;
else
SP = firstrelem + (lastlelem - firstlelem);
- RETURN;
- }
- else {
- SP = firstrelem;
- for (relem = firstrelem; relem <= lastrelem; ++relem) {
- if (SvOK(*relem)) {
- dTARGET;
-
- SETi(lastrelem - firstrelem + 1);
- RETURN;
- }
- }
- RETSETUNDEF;
+ lelem = firstlelem + (relem - firstrelem);
+ while (relem <= SP)
+ *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef;
}
+ RETURN;
}
PP(pp_match)
I32 gimme = GIMME;
STRLEN len;
I32 minmatch = 0;
+ I32 oldsave = savestack_ix;
+ I32 update_minmatch = 1;
if (op->op_flags & OPf_STACKED)
TARG = POPs;
strend = s + len;
if (!s)
DIE("panic: do_match");
+ TAINT_NOT;
if (pm->op_pmflags & PMf_USED) {
if (gimme == G_ARRAY)
if (mg && mg->mg_len >= 0) {
rx->endp[0] = rx->startp[0] = s + mg->mg_len;
minmatch = (mg->mg_flags & MGf_MINMATCH);
+ update_minmatch = 0;
}
}
}
if (!rx->nparens && !global)
gimme = G_SCALAR; /* accidental array context? */
- safebase = (gimme == G_ARRAY) || global;
+ safebase = (((gimme == G_ARRAY) || global || !rx->nparens)
+ && !sawampersand);
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
SAVEINT(multiline);
multiline = pm->op_pmflags & PMf_MULTILINE;
play_it_again:
if (global && rx->startp[0]) {
t = s = rx->endp[0];
- if (s > strend)
+ if ((s + rx->minlen) > strend)
goto nope;
- minmatch = (s == rx->startp[0]);
+ if (update_minmatch++)
+ minmatch = (s == rx->startp[0]);
}
if (pm->op_pmshort) {
if (pm->op_pmflags & PMf_SCANFIRST) {
s = t;
}
else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s ||
- bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) {
- if (pm->op_pmflags & PMf_FOLD) {
- if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) )
- goto nope;
- }
- else
- goto nope;
- }
+ if (*SvPVX(pm->op_pmshort) != *s
+ || (pm->op_pmslen > 1
+ && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
+ goto nope;
}
if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
SvREFCNT_dec(pm->op_pmshort);
}
}
if (pregexec(rx, s, strend, truebase, minmatch,
- SvSCREAM(TARG) ? TARG : Nullsv,
- safebase)) {
+ SvSCREAM(TARG) ? TARG : Nullsv, safebase))
+ {
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmflags |= PMf_USED;
/*NOTREACHED*/
gotcha:
+ TAINT_IF(rx->exec_tainted);
if (gimme == G_ARRAY) {
I32 iters, i, len;
else
i = 0;
EXTEND(SP, iters + i);
+ EXTEND_MORTAL(iters + i);
for (i = !i; i <= iters; i++) {
PUSHs(sv_newmortal());
/*SUPPRESS 560*/
}
if (global) {
truebase = rx->subbeg;
+ strend = rx->subend;
if (rx->startp[0] && rx->startp[0] == rx->endp[0])
++rx->endp[0];
goto play_it_again;
}
+ LEAVE_SCOPE(oldsave);
RETURN;
}
else {
mg = mg_find(TARG, 'g');
}
if (rx->startp[0]) {
- mg->mg_len = rx->endp[0] - truebase;
+ mg->mg_len = rx->endp[0] - rx->subbeg;
if (rx->startp[0] == rx->endp[0])
mg->mg_flags |= MGf_MINMATCH;
else
mg->mg_flags &= ~MGf_MINMATCH;
}
- else
- mg->mg_len = -1;
}
+ LEAVE_SCOPE(oldsave);
RETPUSHYES;
}
yup:
+ TAINT_IF(rx->exec_tainted);
++BmUSEFUL(pm->op_pmshort);
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmflags |= PMf_USED;
+ Safefree(rx->subbase);
+ rx->subbase = Nullch;
if (global) {
rx->subbeg = truebase;
rx->subend = strend;
if (sawampersand) {
char *tmps;
- if (rx->subbase)
- Safefree(rx->subbase);
tmps = rx->subbase = savepvn(t, strend-t);
rx->subbeg = tmps;
rx->subend = tmps + (strend-t);
tmps = rx->startp[0] = tmps + (s - t);
rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
}
+ LEAVE_SCOPE(oldsave);
RETPUSHYES;
nope:
++BmUSEFUL(pm->op_pmshort);
ret_no:
- if (global) {
+ if (global && !(pm->op_pmflags & PMf_CONTINUE)) {
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg)
mg->mg_len = -1;
}
}
+ LEAVE_SCOPE(oldsave);
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
OP *
do_readline()
{
+ dTHR;
dSP; dTARGETSTACKED;
register SV *sv;
STRLEN tmplen = 0;
STRLEN offset;
- FILE *fp;
+ PerlIO *fp;
register IO *io = GvIO(last_in_gv);
register I32 type = op->op_type;
+ I32 gimme = GIMME_V;
+ MAGIC *mg;
+ if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
+ PUSHMARK(SP);
+ XPUSHs(mg->mg_obj);
+ PUTBACK;
+ ENTER;
+ perl_call_method("READLINE", gimme);
+ LEAVE;
+ SPAGAIN;
+ if (gimme == G_SCALAR)
+ SvSetMagicSV_nosteal(TARG, TOPs);
+ RETURN;
+ }
fp = Nullfp;
if (io) {
fp = IoIFP(io);
char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
char tmpfnam[L_tmpnam] = "SYS$SCRATCH:";
$DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
- FILE *tmpfp;
+ PerlIO *tmpfp;
STRLEN i;
struct dsc$descriptor_s wilddsc
= {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
break;
}
}
- if ((tmpfp = fopen(tmpfnam,"w+","fop=dlt")) != NULL) {
+ if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) {
ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
*(end++) = '\n'; *end = '\0';
for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
if (hasdir) {
- if (isunix) trim_unixpath(SvPVX(tmpglob),rstr);
+ if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
begin = rstr;
}
else {
while (*(--begin) != ']' && *begin != '>') ;
++begin;
}
- ok = (fputs(begin,tmpfp) != EOF);
+ ok = (PerlIO_puts(tmpfp,begin) != EOF);
}
if (cxt) (void)lib$find_file_end(&cxt);
if (ok && sts != RMS$_NMF &&
sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
if (!ok) {
+ if (!(sts & 1)) {
+ SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
+ }
+ PerlIO_close(tmpfp);
fp = NULL;
}
else {
- rewind(tmpfp);
+ PerlIO_rewind(tmpfp);
IoTYPE(io) = '<';
IoIFP(io) = fp = tmpfp;
+ IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
}
}
}
#else /* !VMS */
#ifdef DOSISH
+#ifdef OS2
+ sv_setpv(tmpcmd, "for a in ");
+ sv_catsv(tmpcmd, tmpglob);
+ sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
+#else
sv_setpv(tmpcmd, "perlglob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, " |");
-#else
-#ifdef CSH
+#endif /* !OS2 */
+#else /* !DOSISH */
+#if defined(CSH)
sv_setpvn(tmpcmd, cshname, cshlen);
sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
#endif
#endif /* !CSH */
-#endif /* !MSDOS */
- (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),Nullfp);
+#endif /* !DOSISH */
+ (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
+ FALSE, 0, 0, Nullfp);
fp = IoIFP(io);
#endif /* !VMS */
LEAVE;
SP--;
}
if (!fp) {
- if (dowarn && !(IoFLAGS(io) & IOf_START))
+ if (dowarn && io && !(IoFLAGS(io) & IOf_START))
warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
- if (GIMME == G_ARRAY) {
- sv = sv_2mortal(NEWSV(57, 80));
- offset = 0;
- }
- else {
+ if (gimme == G_SCALAR) {
sv = TARG;
+ if (SvROK(sv))
+ sv_unref(sv);
(void)SvUPGRADE(sv, SVt_PV);
tmplen = SvLEN(sv); /* remember if already alloced */
if (!tmplen)
else
offset = 0;
}
+ else {
+ sv = sv_2mortal(NEWSV(57, 80));
+ offset = 0;
+ }
for (;;) {
if (!sv_gets(sv, fp, offset)) {
- clearerr(fp);
+ PerlIO_clearerr(fp);
if (IoFLAGS(io) & IOf_ARGV) {
fp = nextargv(last_in_gv);
if (fp)
IoFLAGS(io) |= IOf_START;
}
else if (type == OP_GLOB) {
- (void)do_close(last_in_gv, FALSE);
+ if (do_close(last_in_gv, FALSE) & ~0xFF)
+ warn("internal error: glob failed");
}
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
+ /* This should not be marked tainted if the fp is marked clean */
+ if (!(IoFLAGS(io) & IOf_UNTAINT)) {
+ TAINT;
+ SvTAINTED_on(sv);
+ }
IoLINES(io)++;
+ SvSETMAGIC(sv);
XPUSHs(sv);
- if (tainting) {
- tainted = TRUE;
- SvTAINT(sv); /* Anything from the outside world...*/
- }
if (type == OP_GLOB) {
char *tmps;
- if (SvCUR(sv) > 0)
- SvCUR(sv)--;
- if (*SvEND(sv) == rschar)
- *SvEND(sv) = '\0';
- else
- SvCUR(sv)++;
+ if (SvCUR(sv) > 0 && SvCUR(rs) > 0) {
+ tmps = SvEND(sv) - 1;
+ if (*tmps == *SvPVX(rs)) {
+ *tmps = '\0';
+ SvCUR(sv)--;
+ }
+ }
for (tmps = SvPVX(sv); *tmps; tmps++)
if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
continue;
}
}
- if (GIMME == G_ARRAY) {
+ if (gimme == G_ARRAY) {
if (SvLEN(sv) - SvCUR(sv) > 20) {
SvLEN_set(sv, SvCUR(sv)+1);
Renew(SvPVX(sv), SvLEN(sv), char);
sv = sv_2mortal(NEWSV(58, 80));
continue;
}
- else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
+ else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
/* try to reclaim a bit of scalar space (only on 1st alloc) */
if (SvCUR(sv) < 60)
SvLEN_set(sv, 80);
{
dSP;
register CONTEXT *cx;
- I32 gimme;
-
- /*
- * We don't just use the GIMME macro here because it assumes there's
- * already a context, which ain't necessarily so at initial startup.
- */
+ I32 gimme = OP_GIMME(op, -1);
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
ENTER;
PP(pp_helem)
{
dSP;
- SV** svp;
+ HE* he;
+ SV **svp;
SV *keysv = POPs;
- STRLEN keylen;
- char *key = SvPV(keysv, keylen);
HV *hv = (HV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ U32 lval = op->op_flags & OPf_MOD;
+ U32 defer = op->op_private & OPpLVAL_DEFER;
- if (SvTYPE(hv) != SVt_PVHV)
+ if (SvTYPE(hv) == SVt_PVHV) {
+ he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
+ svp = he ? &HeVAL(he) : 0;
+ }
+ else if (SvTYPE(hv) == SVt_PVAV) {
+ svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0);
+ }
+ else {
RETPUSHUNDEF;
- svp = hv_fetch(hv, key, keylen, lval);
+ }
if (lval) {
- if (!svp || *svp == &sv_undef)
- DIE(no_helem, key);
- if (op->op_private & OPpLVAL_INTRO)
- save_svref(svp);
- else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) {
- SV* sv = *svp;
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (!SvOK(sv)) {
- (void)SvUPGRADE(sv, SVt_RV);
- SvRV(sv) = (op->op_private & OPpDEREF_HV ?
- (SV*)newHV() : (SV*)newAV());
- SvROK_on(sv);
- SvSETMAGIC(sv);
- }
+ if (!svp || *svp == &sv_undef) {
+ SV* lv;
+ SV* key2;
+ if (!defer)
+ DIE(no_helem, SvPV(keysv, na));
+ lv = sv_newmortal();
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0);
+ SvREFCNT_dec(key2); /* sv_magic() increments refcount */
+ LvTARG(lv) = SvREFCNT_inc(hv);
+ LvTARGLEN(lv) = 1;
+ PUSHs(lv);
+ RETURN;
}
+ if (op->op_private & OPpLVAL_INTRO) {
+ if (HvNAME(hv) && isGV(*svp))
+ save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL));
+ else
+ save_svref(svp);
+ }
+ else if (op->op_private & OPpDEREF)
+ vivify_ref(*svp, op->op_private & OPpDEREF);
}
PUSHs(svp ? *svp : &sv_undef);
RETURN;
POPBLOCK(cx,newpm);
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ gimme = OP_GIMME(op, -1);
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
- if (gimme == G_SCALAR) {
- if (op->op_private & OPpLEAVE_VOID)
- SP = newsp;
+ TAINT_NOT;
+ if (gimme == G_VOID)
+ SP = newsp;
+ else if (gimme == G_SCALAR) {
+ MARK = newsp + 1;
+ if (MARK <= SP)
+ if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
+ *MARK = TOPs;
+ else
+ *MARK = sv_mortalcopy(TOPs);
else {
- MARK = newsp + 1;
- if (MARK <= SP)
- if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
- *MARK = TOPs;
- else
- *MARK = sv_mortalcopy(TOPs);
- else {
- MEXTEND(mark,0);
- *MARK = &sv_undef;
- }
- SP = MARK;
+ MEXTEND(mark,0);
+ *MARK = &sv_undef;
}
+ SP = MARK;
}
- else {
- for (mark = newsp + 1; mark <= SP; mark++)
- if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP)))
+ else if (gimme == G_ARRAY) {
+ /* in case LEAVE wipes old return values */
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
*mark = sv_mortalcopy(*mark);
- /* in case LEAVE wipes old return values */
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
}
curpm = newpm; /* Don't pop $1 et al till now */
{
dSP;
register CONTEXT *cx;
- SV *sv;
+ SV* sv;
+ AV* av;
EXTEND(sp, 1);
cx = &cxstack[cxstack_ix];
if (cx->cx_type != CXt_LOOP)
DIE("panic: pp_iter");
- if (cx->blk_loop.iterix >= cx->blk_oldsp)
+ av = cx->blk_loop.iterary;
+ if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av)))
RETPUSHNO;
- if (sv = AvARRAY(cx->blk_loop.iterary)[++cx->blk_loop.iterix]) {
+ SvREFCNT_dec(*cx->blk_loop.itervar);
+
+ if (sv = AvARRAY(av)[++cx->blk_loop.iterix])
SvTEMP_off(sv);
- *cx->blk_loop.itervar = sv;
- }
else
- *cx->blk_loop.itervar = &sv_undef;
+ sv = &sv_undef;
+ if (av != curstack && SvIMMORTAL(sv)) {
+ SV *lv = cx->blk_loop.iterlval;
+ if (lv && SvREFCNT(lv) > 1) {
+ SvREFCNT_dec(lv);
+ lv = Nullsv;
+ }
+ if (lv)
+ SvREFCNT_dec(LvTARG(lv));
+ else {
+ lv = cx->blk_loop.iterlval = NEWSV(26, 0);
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, Nullsv, 'y', Nullch, 0);
+ }
+ LvTARG(lv) = SvREFCNT_inc(av);
+ LvTARGOFF(lv) = cx->blk_loop.iterix;
+ LvTARGLEN(lv) = -1;
+ sv = (SV*)lv;
+ }
+ *cx->blk_loop.itervar = SvREFCNT_inc(sv);
RETPUSHYES;
}
I32 maxiters;
register I32 i;
bool once;
+ bool rxtainted;
char *orig;
I32 safebase;
register REGEXP *rx = pm->op_pmregexp;
STRLEN len;
int force_on_match = 0;
+ I32 oldsave = savestack_ix;
- if (pm->op_pmflags & PMf_CONST) /* known replacement string? */
- dstr = POPs;
+ /* known replacement string? */
+ dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv;
if (op->op_flags & OPf_STACKED)
TARG = POPs;
else {
TARG = GvSV(defgv);
EXTEND(SP,1);
}
+ if (SvREADONLY(TARG)
+ || (SvTYPE(TARG) > SVt_PVLV
+ && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
+ croak(no_modify);
s = SvPV(TARG, len);
- if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV))
+ if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
force_on_match = 1;
+ TAINT_NOT;
force_it:
if (!pm || !s)
pm = curpm;
rx = pm->op_pmregexp;
}
- safebase = ((!rx || !rx->nparens) && !sawampersand);
+ safebase = (!rx->nparens && !sawampersand);
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
SAVEINT(multiline);
multiline = pm->op_pmflags & PMf_MULTILINE;
s = m;
}
else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s ||
- bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) {
- if (pm->op_pmflags & PMf_FOLD) {
- if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) )
- goto nope;
- }
- else
- goto nope;
- }
+ if (*SvPVX(pm->op_pmshort) != *s
+ || (pm->op_pmslen > 1
+ && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
+ goto nope;
}
if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
SvREFCNT_dec(pm->op_pmshort);
pm->op_pmshort = Nullsv; /* opt is being useless */
}
}
+
+ /* only replace once? */
once = !(rpm->op_pmflags & PMf_GLOBAL);
- if (rpm->op_pmflags & PMf_CONST) { /* known replacement string? */
- c = SvPV(dstr, clen);
- if (clen <= rx->minlen) {
- /* can do inplace substitution */
- if (pregexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
- if (force_on_match) {
- force_on_match = 0;
- s = SvPV_force(TARG, len);
- goto force_it;
+
+ /* known replacement string? */
+ c = dstr ? SvPV(dstr, clen) : Nullch;
+
+ /* can do inplace substitution? */
+ if (c && clen <= rx->minlen && safebase) {
+ if (! pregexec(rx, s, strend, orig, 0,
+ SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
+ PUSHs(&sv_no);
+ LEAVE_SCOPE(oldsave);
+ RETURN;
+ }
+ if (force_on_match) {
+ force_on_match = 0;
+ s = SvPV_force(TARG, len);
+ goto force_it;
+ }
+ d = s;
+ curpm = pm;
+ SvSCREAM_off(TARG); /* disable possible screamer */
+ if (once) {
+ rxtainted = rx->exec_tainted;
+ m = rx->startp[0];
+ d = rx->endp[0];
+ s = orig;
+ if (m - s > strend - d) { /* faster to shorten from end */
+ if (clen) {
+ Copy(c, m, clen, char);
+ m += clen;
}
- if (rx->subbase) /* oops, no we can't */
- goto long_way;
- d = s;
- curpm = pm;
- SvSCREAM_off(TARG); /* disable possible screamer */
- if (once) {
- m = rx->startp[0];
- d = rx->endp[0];
- s = orig;
- if (m - s > strend - d) { /* faster to shorten from end */
- if (clen) {
- Copy(c, m, clen, char);
- m += clen;
- }
- i = strend - d;
- if (i > 0) {
- Move(d, m, i, char);
- m += i;
- }
- *m = '\0';
- SvCUR_set(TARG, m - s);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- /*SUPPRESS 560*/
- else if (i = m - s) { /* faster from front */
- d -= clen;
- m = d;
- sv_chop(TARG, d-i);
- s += i;
- while (i--)
- *--d = *--s;
- if (clen)
- Copy(c, m, clen, char);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- else if (clen) {
- d -= clen;
- sv_chop(TARG, d);
- Copy(c, d, clen, char);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- else {
- sv_chop(TARG, d);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- /* NOTREACHED */
+ i = strend - d;
+ if (i > 0) {
+ Move(d, m, i, char);
+ m += i;
}
- do {
- if (iters++ > maxiters)
- DIE("Substitution loop");
- m = rx->startp[0];
- /*SUPPRESS 560*/
- if (i = m - s) {
- if (s != d)
- Move(s, d, i, char);
- d += i;
- }
- if (clen) {
- Copy(c, d, clen, char);
- d += clen;
- }
- s = rx->endp[0];
- } while (pregexec(rx, s, strend, orig, s == m,
- Nullsv, TRUE)); /* (don't match same null twice) */
- if (s != d) {
- i = strend - s;
- SvCUR_set(TARG, d - SvPVX(TARG) + i);
- Move(s, d, i+1, char); /* include the Null */
+ *m = '\0';
+ SvCUR_set(TARG, m - s);
+ }
+ /*SUPPRESS 560*/
+ else if (i = m - s) { /* faster from front */
+ d -= clen;
+ m = d;
+ sv_chop(TARG, d-i);
+ s += i;
+ while (i--)
+ *--d = *--s;
+ if (clen)
+ Copy(c, m, clen, char);
+ }
+ else if (clen) {
+ d -= clen;
+ sv_chop(TARG, d);
+ Copy(c, d, clen, char);
+ }
+ else {
+ sv_chop(TARG, d);
+ }
+ TAINT_IF(rxtainted);
+ PUSHs(&sv_yes);
+ }
+ else {
+ rxtainted = 0;
+ do {
+ if (iters++ > maxiters)
+ DIE("Substitution loop");
+ rxtainted |= rx->exec_tainted;
+ m = rx->startp[0];
+ /*SUPPRESS 560*/
+ if (i = m - s) {
+ if (s != d)
+ Move(s, d, i, char);
+ d += i;
}
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(sv_2mortal(newSViv((I32)iters)));
- RETURN;
+ if (clen) {
+ Copy(c, d, clen, char);
+ d += clen;
+ }
+ s = rx->endp[0];
+ } while (pregexec(rx, s, strend, orig, s == m,
+ Nullsv, TRUE)); /* don't match same null twice */
+ if (s != d) {
+ i = strend - s;
+ SvCUR_set(TARG, d - SvPVX(TARG) + i);
+ Move(s, d, i+1, char); /* include the NUL */
}
- PUSHs(&sv_no);
- RETURN;
+ TAINT_IF(rxtainted);
+ PUSHs(sv_2mortal(newSViv((I32)iters)));
}
+ (void)SvPOK_only(TARG);
+ SvSETMAGIC(TARG);
+ SvTAINT(TARG);
+ LEAVE_SCOPE(oldsave);
+ RETURN;
}
- else
- c = Nullch;
+
if (pregexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
- long_way:
+ SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
if (force_on_match) {
force_on_match = 0;
s = SvPV_force(TARG, len);
goto force_it;
}
+ rxtainted = rx->exec_tainted;
dstr = NEWSV(25, sv_len(TARG));
sv_setpvn(dstr, m, s-m);
curpm = pm;
do {
if (iters++ > maxiters)
DIE("Substitution loop");
+ rxtainted |= rx->exec_tainted;
if (rx->subbase && rx->subbase != orig) {
m = s;
s = orig;
sv_catpvn(dstr, c, clen);
if (once)
break;
- } while (pregexec(rx, s, strend, orig, s == m, Nullsv,
- safebase));
+ } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase));
sv_catpvn(dstr, s, strend - s);
- SvOOK_off(TARG);
+ TAINT_IF(rxtainted);
+
+ (void)SvOOK_off(TARG);
Safefree(SvPVX(TARG));
SvPVX(TARG) = SvPVX(dstr);
SvCUR_set(TARG, SvCUR(dstr));
(void)SvPOK_only(TARG);
SvSETMAGIC(TARG);
+ SvTAINT(TARG);
PUSHs(sv_2mortal(newSViv((I32)iters)));
+ LEAVE_SCOPE(oldsave);
RETURN;
}
- PUSHs(&sv_no);
- RETURN;
+ goto ret_no;
nope:
++BmUSEFUL(pm->op_pmshort);
+
+ret_no:
PUSHs(&sv_no);
+ LEAVE_SCOPE(oldsave);
RETURN;
}
/* All done yet? */
if (stack_base + *markstack_ptr > sp) {
I32 items;
+ I32 gimme = GIMME_V;
LEAVE; /* exit outer scope */
(void)POPMARK; /* pop src */
items = --*markstack_ptr - markstack_ptr[-1];
(void)POPMARK; /* pop dst */
SP = stack_base + POPMARK; /* pop original mark */
- if (GIMME != G_ARRAY) {
+ if (gimme == G_SCALAR) {
dTARGET;
XPUSHi(items);
- RETURN;
}
- SP += items;
+ else if (gimme == G_ARRAY)
+ SP += items;
RETURN;
}
else {
PMOP *newpm;
I32 gimme;
register CONTEXT *cx;
+ struct block_sub cxsub;
POPBLOCK(cx,newpm);
- POPSUB(cx);
-
+ POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
+
+ TAINT_NOT;
if (gimme == G_SCALAR) {
MARK = newsp + 1;
if (MARK <= SP)
- if (SvFLAGS(TOPs) & SVs_TEMP)
- *MARK = TOPs;
- else
- *MARK = sv_mortalcopy(TOPs);
+ *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs);
else {
- MEXTEND(mark,0);
+ MEXTEND(MARK, 0);
*MARK = &sv_undef;
}
SP = MARK;
}
- else {
- for (mark = newsp + 1; mark <= SP; mark++)
- if (!(SvFLAGS(*mark) & SVs_TEMP))
- *mark = sv_mortalcopy(*mark);
- /* in case LEAVE wipes old return values */
- }
-
- if (cx->blk_sub.hasargs) { /* You don't exist; go away. */
- AV* av = cx->blk_sub.argarray;
-
- av_clear(av);
- AvREAL_off(av);
+ else if (gimme == G_ARRAY) {
+ for (MARK = newsp + 1; MARK <= SP; MARK++) {
+ if (!SvTEMP(*MARK)) {
+ *MARK = sv_mortalcopy(*MARK);
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
}
- curpm = newpm; /* Don't pop $1 et al till now */
+ PUTBACK;
+
+ POPSUB2(); /* Stack values are safe: release CV and @_ ... */
+ curpm = newpm; /* ... and pop $1 et al */
LEAVE;
- PUTBACK;
return pop_return();
}
register CV *cv;
register CONTEXT *cx;
I32 gimme;
+ bool hasargs = (op->op_flags & OPf_STACKED) != 0;
if (!sv)
DIE("Not a CODE reference");
if (sv == &sv_yes) /* unfound import, ignore */
RETURN;
- if (!SvOK(sv))
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ sym = SvPOKp(sv) ? SvPVX(sv) : Nullch;
+ }
+ else
+ sym = SvPV(sv, na);
+ if (!sym)
DIE(no_usym, "a subroutine");
- sym = SvPV(sv,na);
if (op->op_private & HINT_STRICT_REFS)
DIE(no_symref, sym, "a subroutine");
cv = perl_get_cv(sym, TRUE);
cv = (CV*)sv;
break;
case SVt_PVGV:
- if (!(cv = GvCV((GV*)sv)))
+ if (!(cv = GvCVu((GV*)sv)))
cv = sv_2cv(sv, &stash, &gv, TRUE);
break;
}
DIE("Not a CODE reference");
if (!CvROOT(cv) && !CvXSUB(cv)) {
- if (gv = CvGV(cv)) {
- SV *tmpstr = sv_newmortal();
- GV *ngv;
- gv_efullname(tmpstr, gv);
- ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD");
- if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */
- gv = ngv;
- sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */
- goto retry;
- }
- else
- DIE("Undefined subroutine &%s called",SvPVX(tmpstr));
+ GV* autogv;
+ SV* subname;
+
+ /* anonymous or undef'd function leaves us no recourse */
+ if (CvANON(cv) || !(gv = CvGV(cv)))
+ DIE("Undefined subroutine called");
+ /* autoloaded stub? */
+ if (cv != GvCV(gv)) {
+ cv = GvCV(gv);
+ goto retry;
}
- DIE("Undefined subroutine called");
+ /* should call AUTOLOAD now? */
+ if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
+ FALSE)))
+ {
+ cv = GvCV(autogv);
+ goto retry;
+ }
+ /* sorry */
+ subname = sv_newmortal();
+ gv_efullname3(subname, gv, Nullch);
+ DIE("Undefined subroutine &%s called", SvPVX(subname));
}
- if ((op->op_private & OPpDEREF_DB) && !CvXSUB(cv)) {
+ gimme = GIMME_V;
+ if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) {
+ SV *oldsv = sv;
sv = GvSV(DBsub);
save_item(sv);
- if (SvFLAGS(cv) & (SVpcv_ANON | SVpcv_CLONED)) /* Is GV potentially non-unique? */
+ gv = CvGV(cv);
+ if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
+ || strEQ(GvNAME(gv), "END")
+ || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
+ !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv)
+ && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */
+ /* GV is potentially non-unique, or contain different CV. */
sv_setsv(sv, newRV((SV*)cv));
+ }
else {
- gv = CvGV(cv);
- gv_efullname(sv,gv);
+ gv_efullname3(sv, gv, Nullch);
}
cv = GvCV(DBsub);
+ if (CvXSUB(cv)) curcopdb = curcop;
if (!cv)
DIE("No DBsub routine");
}
+#ifdef USE_THREADS
+ MUTEX_LOCK(CvMUTEXP(cv));
+ if (CvFLAGS(cv) & CVf_LOCKED) {
+ MAGIC *mg;
+ if (CvFLAGS(cv) & CVf_METHOD) {
+ if (SP > stack_base + TOPMARK)
+ sv = *(stack_base + TOPMARK + 1);
+ else {
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ croak("no argument for locked method call");
+ }
+ if (SvROK(sv))
+ sv = SvRV(sv);
+ }
+ else {
+ sv = (SV*)cv;
+ }
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ mg = condpair_magic(sv);
+ MUTEX_LOCK(MgMUTEXP(mg));
+ if (MgOWNER(mg) == thr)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ else {
+ while (MgOWNER(mg))
+ COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
+ MgOWNER(mg) = thr;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "0x%lx: pp_entersub lock 0x%lx\n",
+ (unsigned long)thr, (unsigned long)sv);)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ save_destructor(unlock_condpair, sv);
+ }
+ MUTEX_LOCK(CvMUTEXP(cv));
+ assert(CvOWNER(cv) == 0);
+ CvOWNER(cv) = thr; /* Assert ownership */
+ SvREFCNT_inc(cv);
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ if (CvDEPTH(cv) == 0)
+ SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
+ }
+ else {
+ /*
+ * It's an ordinary unsynchronised CV so we must distinguish
+ * three cases. (1) It's ours already (and we're recursing);
+ * (2) it's free (but we may already be using a cached clone);
+ * (3) another thread owns it. Case (1) is easy: we just use it.
+ * Case (2) means we look for a clone--if we have one, use it
+ * otherwise grab ownership of cv. Case (3) means look we for a
+ * clone and have to create one if we don't already have one.
+ * Why look for a clone in case (2) when we could just grab
+ * ownership of cv straight away? Well, we could be recursing,
+ * i.e. we originally tried to enter cv while another thread
+ * owned it (hence we used a clone) but it has been freed up
+ * and we're now recursing into it. It may or may not be "better"
+ * to use the clone but at least CvDEPTH can be trusted.
+ */
+ if (CvOWNER(cv) == thr)
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ else {
+ /* Case (2) or (3) */
+ SV **svp;
+
+ /*
+ * XXX Might it be better to release CvMUTEXP(cv) while we
+ * do the hv_fetch? We might find someone has pinched it
+ * when we look again, in which case we would be in case
+ * (3) instead of (2) so we'd have to clone. Would the fact
+ * that we released the mutex more quickly make up for this?
+ */
+ svp = hv_fetch(cvcache, (char *)cv, sizeof(cv), FALSE);
+ if (svp) {
+ /* We already have a clone to use */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ cv = *(CV**)svp;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "entersub: 0x%lx already has clone 0x%lx:%s\n",
+ (unsigned long) thr, (unsigned long) cv,
+ SvPEEK((SV*)cv)));
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ if (CvDEPTH(cv) == 0)
+ SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
+ }
+ else {
+ /* (2) => grab ownership of cv. (3) => make clone */
+ if (!CvOWNER(cv)) {
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "entersub: 0x%lx grabbing 0x%lx:%s in stash %s\n",
+ (unsigned long) thr, (unsigned long) cv,
+ SvPEEK((SV*)cv), CvSTASH(cv) ?
+ HvNAME(CvSTASH(cv)) : "(none)"));
+ } else {
+ /* Make a new clone. */
+ CV *clonecv;
+ SvREFCNT_inc(cv); /* don't let it vanish from under us */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_L((PerlIO_printf(PerlIO_stderr(),
+ "entersub: 0x%lx cloning 0x%lx:%s\n",
+ (unsigned long) thr, (unsigned long) cv,
+ SvPEEK((SV*)cv))));
+ /*
+ * We're creating a new clone so there's no race
+ * between the original MUTEX_UNLOCK and the
+ * SvREFCNT_inc since no one will be trying to undef
+ * it out from underneath us. At least, I don't think
+ * there's a race...
+ */
+ clonecv = cv_clone(cv);
+ SvREFCNT_dec(cv); /* finished with this */
+ hv_store(cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0);
+ CvOWNER(clonecv) = thr;
+ cv = clonecv;
+ SvREFCNT_inc(cv);
+ }
+ DEBUG_L(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
+ }
+ }
+ }
+#endif /* USE_THREADS */
+
gimme = GIMME;
if (CvXSUB(cv)) {
I32 (*fp3)_((int,int,int));
dMARK;
register I32 items = SP - MARK;
+ /* We dont worry to copy from @_. */
while (sp > mark) {
sp[1] = sp[0];
sp--;
I32 markix = TOPMARK;
PUTBACK;
+
+ if (!hasargs) {
+ /* Need to copy @_ to stack. Alternative may be to
+ * switch stack to @_, and copy return values
+ * back. This would allow popping @_ in XSUB, e.g.. XXXX */
+ AV* av;
+ I32 items;
+#ifdef USE_THREADS
+ av = (AV*)curpad[0];
+#else
+ av = GvAV(defgv);
+#endif /* USE_THREADS */
+ items = AvFILL(av) + 1;
+
+ if (items) {
+ /* Mark is at the end of the stack. */
+ EXTEND(sp, items);
+ Copy(AvARRAY(av), sp + 1, items, SV*);
+ sp += items;
+ PUTBACK ;
+ }
+ }
+ if (curcopdb) { /* We assume that the first
+ XSUB in &DB::sub is the
+ called one. */
+ SAVESPTR(curcop);
+ curcop = curcopdb;
+ curcopdb = NULL;
+ }
+ /* Do we need to open block here? XXXX */
(void)(*CvXSUB(cv))(cv);
/* Enforce some sanity in scalar context. */
else {
dMARK;
register I32 items = SP - MARK;
- I32 hasargs = (op->op_flags & OPf_STACKED) != 0;
AV* padlist = CvPADLIST(cv);
SV** svp = AvARRAY(padlist);
push_return(op->op_next);
if (CvDEPTH(cv) < 2)
(void)SvREFCNT_inc(cv);
else { /* save temporaries on recursion? */
- if (CvDEPTH(cv) == 100 && dowarn)
- warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv)));
+ if (CvDEPTH(cv) == 100 && dowarn
+ && !(PERLDB_SUB && cv == GvCV(DBsub)))
+ sub_crush_depth(cv);
if (CvDEPTH(cv) > AvFILL(padlist)) {
AV *av;
AV *newpad = newAV();
for ( ;ix > 0; ix--) {
if (svp[ix] != &sv_undef) {
char *name = SvPVX(svp[ix]);
- if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* outer lexical? */
- av_store(newpad, ix,
- SvREFCNT_inc(oldpad[ix]) );
+ if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */
+ || *name == '&') /* anonymous code? */
+ {
+ av_store(newpad, ix, SvREFCNT_inc(oldpad[ix]));
}
else { /* our own lexical */
if (*name == '@')
svp = AvARRAY(padlist);
}
}
- SAVESPTR(curpad);
- curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
- if (hasargs) {
+#ifdef USE_THREADS
+ if (!hasargs) {
AV* av = (AV*)curpad[0];
+
+ items = AvFILL(av) + 1;
+ if (items) {
+ /* Mark is at the end of the stack. */
+ EXTEND(sp, items);
+ Copy(AvARRAY(av), sp + 1, items, SV*);
+ sp += items;
+ PUTBACK ;
+ }
+ }
+#endif /* USE_THREADS */
+ SAVESPTR(curpad);
+ curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
+#ifndef USE_THREADS
+ if (hasargs)
+#endif /* USE_THREADS */
+ {
+ AV* av;
SV** ary;
+#if 0
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p entersub preparing @_\n", thr));
+#endif
+ av = (AV*)curpad[0];
if (AvREAL(av)) {
av_clear(av);
AvREAL_off(av);
}
+#ifndef USE_THREADS
cx->blk_sub.savearray = GvAV(defgv);
+ GvAV(defgv) = (AV*)SvREFCNT_inc(av);
+#endif /* USE_THREADS */
cx->blk_sub.argarray = av;
- GvAV(defgv) = cx->blk_sub.argarray;
++MARK;
if (items > AvMAX(av) + 1) {
MARK++;
}
}
+#if 0
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p entersub returning %p\n", thr, CvSTART(cv)));
+#endif
RETURNOP(CvSTART(cv));
}
}
+void
+sub_crush_depth(cv)
+CV* cv;
+{
+ if (CvANON(cv))
+ warn("Deep recursion on anonymous subroutine");
+ else {
+ SV* tmpstr = sv_newmortal();
+ gv_efullname3(tmpstr, CvGV(cv), Nullch);
+ warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr));
+ }
+}
+
PP(pp_aelem)
{
dSP;
SV** svp;
I32 elem = POPi;
- AV *av = (AV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ AV* av = (AV*)POPs;
+ U32 lval = op->op_flags & OPf_MOD;
+ U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av));
if (elem > 0)
elem -= curcop->cop_arybase;
if (SvTYPE(av) != SVt_PVAV)
RETPUSHUNDEF;
- svp = av_fetch(av, elem, lval);
+ svp = av_fetch(av, elem, lval && !defer);
if (lval) {
- if (!svp || *svp == &sv_undef)
- DIE(no_aelem, elem);
+ if (!svp || *svp == &sv_undef) {
+ SV* lv;
+ if (!defer)
+ DIE(no_aelem, elem);
+ lv = sv_newmortal();
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, Nullsv, 'y', Nullch, 0);
+ LvTARG(lv) = SvREFCNT_inc(av);
+ LvTARGOFF(lv) = elem;
+ LvTARGLEN(lv) = 1;
+ PUSHs(lv);
+ RETURN;
+ }
if (op->op_private & OPpLVAL_INTRO)
save_svref(svp);
- else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) {
- SV* sv = *svp;
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (!SvOK(sv)) {
- (void)SvUPGRADE(sv, SVt_RV);
- SvRV(sv) = (op->op_private & OPpDEREF_HV ?
- (SV*)newHV() : (SV*)newAV());
- SvROK_on(sv);
- SvSETMAGIC(sv);
- }
- }
+ else if (op->op_private & OPpDEREF)
+ vivify_ref(*svp, op->op_private & OPpDEREF);
}
PUSHs(svp ? *svp : &sv_undef);
RETURN;
}
+void
+vivify_ref(sv, to_what)
+SV* sv;
+U32 to_what;
+{
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (!SvOK(sv)) {
+ if (SvREADONLY(sv))
+ croak(no_modify);
+ if (SvTYPE(sv) < SVt_RV)
+ sv_upgrade(sv, SVt_RV);
+ else if (SvTYPE(sv) >= SVt_PV) {
+ (void)SvOOK_off(sv);
+ Safefree(SvPVX(sv));
+ SvLEN(sv) = SvCUR(sv) = 0;
+ }
+ switch (to_what) {
+ case OPpDEREF_SV:
+ SvRV(sv) = newSV(0);
+ break;
+ case OPpDEREF_AV:
+ SvRV(sv) = (SV*)newAV();
+ break;
+ case OPpDEREF_HV:
+ SvRV(sv) = (SV*)newHV();
+ break;
+ }
+ SvROK_on(sv);
+ SvSETMAGIC(sv);
+ }
+}
+
PP(pp_method)
{
dSP;
SV* sv;
SV* ob;
GV* gv;
- SV* nm;
+ HV* stash;
+ char* name;
+ char* packname;
+ STRLEN packlen;
- nm = TOPs;
+ name = SvPV(TOPs, na);
sv = *(stack_base + TOPMARK + 1);
- gv = 0;
if (SvGMAGICAL(sv))
mg_get(sv);
if (SvROK(sv))
ob = (SV*)SvRV(sv);
else {
GV* iogv;
- char* packname = 0;
+ packname = Nullch;
if (!SvOK(sv) ||
- !(packname = SvPV(sv, na)) ||
+ !(packname = SvPV(sv, packlen)) ||
!(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) ||
!(ob=(SV*)GvIO(iogv)))
{
- char *name = SvPV(nm, na);
- HV *stash;
- if (!packname || !isALPHA(*packname))
-DIE("Can't call method \"%s\" without a package or object reference", name);
- if (!(stash = gv_stashpv(packname, FALSE))) {
- if (gv_stashpv("UNIVERSAL", FALSE))
- stash = gv_stashpv(packname, TRUE);
- else
- DIE("Can't call method \"%s\" in empty package \"%s\"",
- name, packname);
- }
- gv = gv_fetchmethod(stash,name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, packname);
- SETs(gv);
- RETURN;
+ if (!packname || !isIDFIRST(*packname))
+ DIE("Can't call method \"%s\" without a package or object reference", name);
+ stash = gv_stashpvn(packname, packlen, TRUE);
+ goto fetch;
}
- *(stack_base + TOPMARK + 1) = iogv;
+ *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv));
}
- if (!ob || !SvOBJECT(ob)) {
- char *name = SvPV(nm, na);
+ if (!ob || !SvOBJECT(ob))
DIE("Can't call method \"%s\" on unblessed reference", name);
- }
- if (!gv) { /* nothing cached */
- char *name = SvPV(nm, na);
- gv = gv_fetchmethod(SvSTASH(ob),name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, HvNAME(SvSTASH(ob)));
- }
+ stash = SvSTASH(ob);
+
+ fetch:
+ gv = gv_fetchmethod(stash, name);
+ if (!gv) {
+ char* leaf = name;
+ char* sep = Nullch;
+ char* p;
- SETs(gv);
+ for (p = name; *p; p++) {
+ if (*p == '\'')
+ sep = p, leaf = p + 1;
+ else if (*p == ':' && *(p + 1) == ':')
+ sep = p, leaf = p + 2;
+ }
+ if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) {
+ packname = HvNAME(sep ? curcop->cop_stash : stash);
+ packlen = strlen(packname);
+ }
+ else {
+ packname = name;
+ packlen = sep - name;
+ }
+ DIE("Can't locate object method \"%s\" via package \"%.*s\"",
+ leaf, (int)packlen, packname);
+ }
+ SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv);
RETURN;
}
-
projects / p5sagit/p5-mst-13.2.git / blobdiff