/* doop.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.
#include <signal.h>
#endif
-#ifdef BUGGY_MSC
- #pragma function(memcmp)
-#endif /* BUGGY_MSC */
-
-#ifdef BUGGY_MSC
- #pragma intrinsic(memcmp)
-#endif /* BUGGY_MSC */
-
I32
do_trans(sv,arg)
SV *sv;
register char *s;
register char *t;
register char *f;
- bool dolong;
-#ifdef HAS_QUAD
- bool doquad;
-#endif /* HAS_QUAD */
+ char dotype;
char ch;
register char *send;
register SV *arg;
f = t;
*buf = '\0';
xs = buf;
-#ifdef HAS_QUAD
- doquad =
-#endif /* HAS_QUAD */
- dolong = FALSE;
+ dotype = '\0';
pre = post = 0;
for (t++; t < send; t++) {
switch (*t) {
continue;
case 'l':
#ifdef HAS_QUAD
- if (dolong) {
- dolong = FALSE;
- doquad = TRUE;
- } else
+ if (dotype == 'l')
+ dotype = 'q';
+ else
#endif
- dolong = TRUE;
+ dotype = 'l';
+ continue;
+ case 'h':
+ dotype = 's';
continue;
case 'c':
ch = *(++t);
}
break;
case 'D':
- dolong = TRUE;
+ dotype = 'l';
/* FALL THROUGH */
case 'd':
+ case 'i':
ch = *(++t);
*t = '\0';
+ switch (dotype) {
#ifdef HAS_QUAD
- if (doquad)
- (void)sprintf(buf,s,(Quad_t)SvNV(arg));
- else
+ case 'q':
+ /* perl.h says that if quad is available, IV is quad */
+ (void)sprintf(xs,f,(Quad_t)SvIV(arg));
+ break;
#endif
- if (dolong)
- (void)sprintf(xs,f,(long)SvNV(arg));
- else
- (void)sprintf(xs,f,SvIV(arg));
+ case 'l':
+ (void)sprintf(xs,f,(long)SvIV(arg));
+ break;
+ default:
+ (void)sprintf(xs,f,(int)SvIV(arg));
+ break;
+ case 's':
+ (void)sprintf(xs,f,(short)SvIV(arg));
+ break;
+ }
xlen = strlen(xs);
break;
case 'X': case 'O':
- dolong = TRUE;
+ dotype = 'l';
/* FALL THROUGH */
case 'x': case 'o': case 'u':
ch = *(++t);
*t = '\0';
- value = SvNV(arg);
+ switch (dotype) {
#ifdef HAS_QUAD
- if (doquad)
- (void)sprintf(buf,s,(unsigned Quad_t)value);
- else
+ case 'q':
+ /* perl.h says that if quad is available, UV is quad */
+ (void)sprintf(xs,f,(unsigned Quad_t)SvUV(arg));
+ break;
#endif
- if (dolong)
- (void)sprintf(xs,f,U_L(value));
- else
- (void)sprintf(xs,f,U_I(value));
+ case 'l':
+ (void)sprintf(xs,f,(unsigned long)SvUV(arg));
+ break;
+ default:
+ (void)sprintf(xs,f,(unsigned int)SvUV(arg));
+ break;
+ case 's':
+ (void)sprintf(xs,f,(unsigned short)SvUV(arg));
+ break;
+ }
xlen = strlen(xs);
break;
case 'E': case 'e': case 'f': case 'G': case 'g':
*t = '\0';
(void)sprintf(xs,f,SvNV(arg));
xlen = strlen(xs);
+#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 (op->op_type == OP_SPRINTF)
+ SvTAINTED_on(sv);
+#endif /* LC_NUMERIC */
break;
case 's':
ch = *(++t);
/* end of switch, copy results */
*t = ch;
if (xs == buf && xlen >= sizeof(buf)) { /* Ooops! */
- fputs("panic: sprintf overflow - memory corrupted!\n",stderr);
+ PerlIO_puts(PerlIO_stderr(),"panic: sprintf overflow - memory corrupted!\n");
my_exit(1);
}
SvGROW(sv, SvCUR(sv) + (f - s) + xlen + 1 + pre + post);
++count;
}
else {
- if (len < rslen)
+ if (len < rslen - 1)
goto nope;
len -= rslen - 1;
s -= rslen - 1;
- if (bcmp(s, rsptr, rslen))
+ if (memNE(s, rsptr, rslen))
goto nope;
count += rslen;
}
register char *dc;
STRLEN leftlen;
STRLEN rightlen;
- register char *lc = SvPV(left, leftlen);
- register char *rc = SvPV(right, rightlen);
+ register char *lc;
+ register char *rc;
register I32 len;
I32 lensave;
+ char *lsave;
+ char *rsave;
- dc = SvPV_force(sv,na);
+ if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
+ sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
+ lsave = lc = SvPV(left, leftlen);
+ rsave = rc = SvPV(right, rightlen);
len = leftlen < rightlen ? leftlen : rightlen;
lensave = len;
- if (SvCUR(sv) < len) {
- dc = SvGROW(sv,len + 1);
- (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
+ if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
+ dc = SvPV_force(sv, na);
+ if (SvCUR(sv) < len) {
+ dc = SvGROW(sv, len + 1);
+ (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
+ }
+ }
+ else {
+ I32 needlen = ((optype == OP_BIT_AND)
+ ? len : (leftlen > rightlen ? leftlen : rightlen));
+ Newz(801, dc, needlen + 1, char);
+ (void)sv_usepvn(sv, dc, needlen);
+ dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
}
SvCUR_set(sv, len);
(void)SvPOK_only(sv);
}
#endif
{
- char *lsave = lc;
- char *rsave = rc;
-
switch (optype) {
case OP_BIT_AND:
while (len--)
{
dSP;
HV *hv = (HV*)POPs;
- I32 i;
register HE *entry;
- char *tmps;
SV *tmpstr;
I32 dokeys = (op->op_type == OP_KEYS);
I32 dovalues = (op->op_type == OP_VALUES);
if (op->op_type == OP_RV2HV || op->op_type == OP_PADHV)
dokeys = dovalues = TRUE;
- if (!hv)
+ if (!hv) {
+ if (op->op_flags & OPf_MOD) { /* lvalue */
+ dTARGET; /* make sure to clear its target here */
+ if (SvTYPE(TARG) == SVt_PVLV)
+ LvTARG(TARG) = Nullsv;
+ PUSHs(TARG);
+ }
RETURN;
+ }
(void)hv_iterinit(hv); /* always reset iterator regardless */
+ if (op->op_private & OPpLEAVE_VOID)
+ RETURN;
+
if (GIMME != G_ARRAY) {
+ I32 i;
dTARGET;
+ if (op->op_flags & OPf_MOD) { /* lvalue */
+ if (SvTYPE(TARG) < SVt_PVLV) {
+ sv_upgrade(TARG, SVt_PVLV);
+ sv_magic(TARG, Nullsv, 'k', Nullch, 0);
+ }
+ LvTYPE(TARG) = 'k';
+ LvTARG(TARG) = (SV*)hv;
+ PUSHs(TARG);
+ RETURN;
+ }
+
if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P'))
i = HvKEYS(hv);
else {
PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
while (entry = hv_iternext(hv)) {
SPAGAIN;
- if (dokeys) {
- tmps = hv_iterkey(entry,&i); /* won't clobber stack_sp */
- if (!i)
- tmps = "";
- XPUSHs(sv_2mortal(newSVpv(tmps,i)));
- }
+ if (dokeys)
+ XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
if (dovalues) {
tmpstr = NEWSV(45,0);
PUTBACK;
sv_setsv(tmpstr,hv_iterval(hv,entry));
SPAGAIN;
DEBUG_H( {
- sprintf(buf,"%d%%%d=%d\n",entry->hent_hash,
- HvMAX(hv)+1,entry->hent_hash & HvMAX(hv));
- sv_setpv(tmpstr,buf);
+ sprintf(buf,"%d%%%d=%d\n", HeHASH(entry),
+ HvMAX(hv)+1, HeHASH(entry) & HvMAX(hv));
+ sv_setpv(tmpstr,buf);
} )
XPUSHs(sv_2mortal(tmpstr));
}
projects / p5sagit/p5-mst-13.2.git / blobdiff