-/* $RCSfile: doarg.c,v $$Revision: 4.1 $$Date: 92/08/07 17:19:37 $
+/* doop.c
*
- * Copyright (c) 1991, 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.
*
- * $Log: doarg.c,v $
- * Revision 4.1 92/08/07 17:19:37 lwall
- * Stage 6 Snapshot
- *
- * Revision 4.0.1.7 92/06/11 21:07:11 lwall
- * patch34: join with null list attempted negative allocation
- * patch34: sprintf("%6.4s", "abcdefg") didn't print "abcd "
- *
- * Revision 4.0.1.6 92/06/08 12:34:30 lwall
- * patch20: removed implicit int declarations on funcions
- * patch20: pattern modifiers i and o didn't interact right
- * patch20: join() now pre-extends target string to avoid excessive copying
- * patch20: fixed confusion between a *var's real name and its effective name
- * patch20: subroutines didn't localize $`, $&, $', $1 et al correctly
- * patch20: usersub routines didn't reclaim temp values soon enough
- * patch20: ($<,$>) = ... didn't work on some architectures
- * patch20: added Atari ST portability
- *
- * Revision 4.0.1.5 91/11/11 16:31:58 lwall
- * patch19: added little-endian pack/unpack options
- *
- * Revision 4.0.1.4 91/11/05 16:35:06 lwall
- * patch11: /$foo/o optimizer could access deallocated data
- * patch11: minimum match length calculation in regexp is now cumulative
- * patch11: added some support for 64-bit integers
- * patch11: prepared for ctype implementations that don't define isascii()
- * patch11: sprintf() now supports any length of s field
- * patch11: indirect subroutine calls through magic vars (e.g. &$1) didn't work
- * patch11: defined(&$foo) and undef(&$foo) didn't work
- *
- * Revision 4.0.1.3 91/06/10 01:18:41 lwall
- * patch10: pack(hh,1) dumped core
- *
- * Revision 4.0.1.2 91/06/07 10:42:17 lwall
- * patch4: new copyright notice
- * patch4: // wouldn't use previous pattern if it started with a null character
- * patch4: //o and s///o now optimize themselves fully at runtime
- * patch4: added global modifier for pattern matches
- * patch4: undef @array disabled "@array" interpolation
- * patch4: chop("") was returning "\0" rather than ""
- * patch4: vector logical operations &, | and ^ sometimes returned null string
- * patch4: syscall couldn't pass numbers with most significant bit set on sparcs
- *
- * Revision 4.0.1.1 91/04/11 17:40:14 lwall
- * patch1: fixed undefined environ problem
- * patch1: fixed debugger coredump on subroutines
- *
- * Revision 4.0 91/03/20 01:06:42 lwall
- * 4.0 baseline.
- *
+ */
+
+/*
+ * "'So that was the job I felt I had to do when I started,' thought Sam."
*/
#include "EXTERN.h"
#include <signal.h>
#endif
-#ifdef BUGGY_MSC
- #pragma function(memcmp)
-#endif /* BUGGY_MSC */
-
-static void doencodes();
-
-#ifdef BUGGY_MSC
- #pragma intrinsic(memcmp)
-#endif /* BUGGY_MSC */
-
I32
do_trans(sv,arg)
SV *sv;
OP *arg;
{
register short *tbl;
- register char *s;
- register I32 matches = 0;
+ register U8 *s;
+ register U8 *send;
+ register U8 *d;
register I32 ch;
- register char *send;
- register char *d;
+ register I32 matches = 0;
register I32 squash = op->op_private & OPpTRANS_SQUASH;
STRLEN len;
- tbl = (short*) cPVOP->op_pv;
- s = SvPV(sv, len);
+ if (SvREADONLY(sv))
+ croak(no_modify);
+ tbl = (short*)cPVOP->op_pv;
+ s = (U8*)SvPV(sv, len);
+ if (!len)
+ return 0;
+ if (!SvPOKp(sv))
+ s = (U8*)SvPV_force(sv, len);
+ (void)SvPOK_only(sv);
send = s + len;
if (!tbl || !s)
croak("panic: do_trans");
DEBUG_t( deb("2.TBL\n"));
if (!op->op_private) {
while (s < send) {
- if ((ch = tbl[*s & 0377]) >= 0) {
+ if ((ch = tbl[*s]) >= 0) {
matches++;
*s = ch;
}
else {
d = s;
while (s < send) {
- if ((ch = tbl[*s & 0377]) >= 0) {
+ if ((ch = tbl[*s]) >= 0) {
*d = ch;
if (matches++ && squash) {
if (d[-1] == *d)
}
matches += send - d; /* account for disappeared chars */
*d = '\0';
- SvCUR_set(sv, d - SvPVX(sv));
+ SvCUR_set(sv, d - (U8*)SvPVX(sv));
}
SvSETMAGIC(sv);
return matches;
}
if (items-- > 0) {
- char *s = SvPV(*mark, tmplen);
- sv_setpvn(sv, s, tmplen);
+ char *s;
+
+ if (*mark) {
+ s = SvPV(*mark, tmplen);
+ sv_setpvn(sv, s, tmplen);
+ }
+ else
+ sv_setpv(sv, "");
mark++;
}
else
void
do_sprintf(sv,len,sarg)
-register SV *sv;
-register I32 len;
-register SV **sarg;
+SV *sv;
+I32 len;
+SV **sarg;
{
- register char *s;
- register char *t;
- register char *f;
- bool dolong;
-#ifdef QUAD
- bool doquad;
-#endif /* QUAD */
- char ch;
- register char *send;
- register SV *arg;
- char *xs;
- I32 xlen;
- I32 pre;
- I32 post;
- double value;
- STRLEN arglen;
-
- sv_setpv(sv,"");
- len--; /* don't count pattern string */
- t = s = SvPV(*sarg, arglen);
- send = s + arglen;
- sarg++;
- for ( ; ; len--) {
-
- /*SUPPRESS 560*/
- if (len <= 0 || !(arg = *sarg++))
- arg = &sv_no;
-
- /*SUPPRESS 530*/
- for ( ; t < send && *t != '%'; t++) ;
- if (t >= send)
- break; /* end of run_format string, ignore extra args */
- f = t;
- *buf = '\0';
- xs = buf;
-#ifdef QUAD
- doquad =
-#endif /* QUAD */
- dolong = FALSE;
- pre = post = 0;
- for (t++; t < send; t++) {
- switch (*t) {
- default:
- ch = *(++t);
- *t = '\0';
- (void)sprintf(xs,f);
- len++, sarg--;
- xlen = strlen(xs);
- break;
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- case '.': case '#': case '-': case '+': case ' ':
- continue;
- case 'l':
-#ifdef QUAD
- if (dolong) {
- dolong = FALSE;
- doquad = TRUE;
- } else
-#endif
- dolong = TRUE;
- continue;
- case 'c':
- ch = *(++t);
- *t = '\0';
- xlen = SvIV(arg);
- if (strEQ(f,"%c")) { /* some printfs fail on null chars */
- *xs = xlen;
- xs[1] = '\0';
- xlen = 1;
- }
- else {
- (void)sprintf(xs,f,xlen);
- xlen = strlen(xs);
- }
- break;
- case 'D':
- dolong = TRUE;
- /* FALL THROUGH */
- case 'd':
- ch = *(++t);
- *t = '\0';
-#ifdef QUAD
- if (doquad)
- (void)sprintf(buf,s,(quad)SvNV(arg));
- else
-#endif
- if (dolong)
- (void)sprintf(xs,f,(long)SvNV(arg));
- else
- (void)sprintf(xs,f,SvIV(arg));
- xlen = strlen(xs);
- break;
- case 'X': case 'O':
- dolong = TRUE;
- /* FALL THROUGH */
- case 'x': case 'o': case 'u':
- ch = *(++t);
- *t = '\0';
- value = SvNV(arg);
-#ifdef QUAD
- if (doquad)
- (void)sprintf(buf,s,(unsigned quad)value);
- else
-#endif
- if (dolong)
- (void)sprintf(xs,f,U_L(value));
- else
- (void)sprintf(xs,f,U_I(value));
- xlen = strlen(xs);
- break;
- case 'E': case 'e': case 'f': case 'G': case 'g':
- ch = *(++t);
- *t = '\0';
- (void)sprintf(xs,f,SvNV(arg));
- xlen = strlen(xs);
- break;
- case 's':
- ch = *(++t);
- *t = '\0';
- xs = SvPV(arg, arglen);
- xlen = (I32)arglen;
- if (strEQ(f,"%s")) { /* some printfs fail on >128 chars */
- break; /* so handle simple cases */
- }
- else if (f[1] == '-') {
- char *mp = strchr(f, '.');
- I32 min = atoi(f+2);
-
- if (mp) {
- I32 max = atoi(mp+1);
-
- if (xlen > max)
- xlen = max;
- }
- if (xlen < min)
- post = min - xlen;
- break;
- }
- else if (isDIGIT(f[1])) {
- char *mp = strchr(f, '.');
- I32 min = atoi(f+1);
-
- if (mp) {
- I32 max = atoi(mp+1);
-
- if (xlen > max)
- xlen = max;
- }
- if (xlen < min)
- pre = min - xlen;
- break;
- }
- strcpy(tokenbuf+64,f); /* sprintf($s,...$s...) */
- *t = ch;
- (void)sprintf(buf,tokenbuf+64,xs);
- xs = buf;
- xlen = strlen(xs);
- break;
- }
- /* end of switch, copy results */
- *t = ch;
- SvGROW(sv, SvCUR(sv) + (f - s) + xlen + 1 + pre + post);
- sv_catpvn(sv, s, f - s);
- if (pre) {
- repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, pre);
- SvCUR(sv) += pre;
- }
- sv_catpvn(sv, xs, xlen);
- if (post) {
- repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, post);
- SvCUR(sv) += post;
- }
- s = t;
- break; /* break from for loop */
- }
- }
- sv_catpvn(sv, s, t - s);
+ STRLEN patlen;
+ char *pat = SvPV(*sarg, patlen);
+ bool do_taint = FALSE;
+
+ sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
SvSETMAGIC(sv);
+ if (do_taint)
+ SvTAINTED_on(sv);
}
void
SV *targ = LvTARG(sv);
register I32 offset;
register I32 size;
- register unsigned char *s = (unsigned char*)SvPVX(targ);
- register unsigned long lval = U_L(SvNV(sv));
+ register unsigned char *s;
+ register unsigned long lval;
I32 mask;
+ STRLEN targlen;
+ STRLEN len;
+ if (!targ)
+ return;
+ s = (unsigned char*)SvPV_force(targ, targlen);
+ lval = U_L(SvNV(sv));
offset = LvTARGOFF(sv);
size = LvTARGLEN(sv);
+
+ len = (offset + size + 7) / 8;
+ if (len > targlen) {
+ s = (unsigned char*)SvGROW(targ, len + 1);
+ (void)memzero(s + targlen, len - targlen + 1);
+ SvCUR_set(targ, len);
+ }
+
if (size < 8) {
mask = (1 << size) - 1;
size = offset & 7;
s[offset] |= lval << size;
}
else {
+ offset >>= 3;
if (size == 8)
s[offset] = lval & 255;
else if (size == 16) {
register SV *astr;
register SV *sv;
{
- register char *tmps;
- register I32 i;
- AV *ary;
- HV *hv;
- HE *entry;
STRLEN len;
-
- if (!sv)
- return;
- if (SvREADONLY(sv))
- croak("Can't chop readonly value");
+ char *s;
+
if (SvTYPE(sv) == SVt_PVAV) {
- I32 max;
- SV **array = AvARRAY(sv);
- max = AvFILL(sv);
- for (i = 0; i <= max; i++)
- do_chop(astr,array[i]);
- return;
+ register I32 i;
+ I32 max;
+ AV* av = (AV*)sv;
+ max = AvFILL(av);
+ for (i = 0; i <= max; i++) {
+ sv = (SV*)av_fetch(av, i, FALSE);
+ if (sv && ((sv = *(SV**)sv), sv != &sv_undef))
+ do_chop(astr, sv);
+ }
+ return;
}
if (SvTYPE(sv) == SVt_PVHV) {
- hv = (HV*)sv;
- (void)hv_iterinit(hv);
- /*SUPPRESS 560*/
- while (entry = hv_iternext(hv))
- do_chop(astr,hv_iterval(hv,entry));
- return;
+ HV* hv = (HV*)sv;
+ HE* entry;
+ (void)hv_iterinit(hv);
+ /*SUPPRESS 560*/
+ while (entry = hv_iternext(hv))
+ do_chop(astr,hv_iterval(hv,entry));
+ return;
}
- tmps = SvPV(sv, len);
- if (tmps && len) {
- tmps += len - 1;
- sv_setpvn(astr,tmps,1); /* remember last char */
- *tmps = '\0'; /* wipe it out */
- SvCUR_set(sv, tmps - SvPVX(sv));
- SvNOK_off(sv);
- SvSETMAGIC(sv);
+ s = SvPV(sv, len);
+ if (len && !SvPOK(sv))
+ s = SvPV_force(sv, len);
+ if (s && len) {
+ s += --len;
+ sv_setpvn(astr, s, 1);
+ *s = '\0';
+ SvCUR_set(sv, len);
+ SvNIOK_off(sv);
}
else
- sv_setpvn(astr,"",0);
-}
+ sv_setpvn(astr, "", 0);
+ SvSETMAGIC(sv);
+}
+
+I32
+do_chomp(sv)
+register SV *sv;
+{
+ register I32 count;
+ STRLEN len;
+ char *s;
+
+ if (RsSNARF(rs))
+ return 0;
+ count = 0;
+ if (SvTYPE(sv) == SVt_PVAV) {
+ register I32 i;
+ I32 max;
+ AV* av = (AV*)sv;
+ max = AvFILL(av);
+ for (i = 0; i <= max; i++) {
+ sv = (SV*)av_fetch(av, i, FALSE);
+ if (sv && ((sv = *(SV**)sv), sv != &sv_undef))
+ count += do_chomp(sv);
+ }
+ return count;
+ }
+ if (SvTYPE(sv) == SVt_PVHV) {
+ HV* hv = (HV*)sv;
+ HE* entry;
+ (void)hv_iterinit(hv);
+ /*SUPPRESS 560*/
+ while (entry = hv_iternext(hv))
+ count += do_chomp(hv_iterval(hv,entry));
+ return count;
+ }
+ s = SvPV(sv, len);
+ if (len && !SvPOKp(sv))
+ s = SvPV_force(sv, len);
+ if (s && len) {
+ s += --len;
+ if (RsPARA(rs)) {
+ if (*s != '\n')
+ goto nope;
+ ++count;
+ while (len && s[-1] == '\n') {
+ --len;
+ --s;
+ ++count;
+ }
+ }
+ else {
+ STRLEN rslen;
+ char *rsptr = SvPV(rs, rslen);
+ if (rslen == 1) {
+ if (*s != *rsptr)
+ goto nope;
+ ++count;
+ }
+ else {
+ if (len < rslen - 1)
+ goto nope;
+ len -= rslen - 1;
+ s -= rslen - 1;
+ if (memNE(s, rsptr, rslen))
+ goto nope;
+ count += rslen;
+ }
+ }
+ *s = '\0';
+ SvCUR_set(sv, len);
+ SvNIOK_off(sv);
+ }
+ nope:
+ SvSETMAGIC(sv);
+ return count;
+}
void
do_vop(optype,sv,left,right)
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;
-
- if (SvREADONLY(sv))
- croak("Can't do %s to readonly value", op_name[optype]);
+ I32 lensave;
+ char *lsave;
+ char *rsave;
+
+ 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;
- if (SvTYPE(sv) < SVt_PV)
- sv_upgrade(sv, SVt_PV);
- if (SvCUR(sv) > len)
- SvCUR_set(sv, len);
- else if (SvCUR(sv) < len) {
- SvGROW(sv,len);
- (void)memzero(SvPVX(sv) + SvCUR(sv), len - SvCUR(sv));
- SvCUR_set(sv, len);
+ lensave = len;
+ 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);
+ }
}
- SvPOK_only(sv);
- dc = SvPVX(sv);
- if (!dc) {
- sv_setpvn(sv,"",0);
- dc = SvPVX(sv);
+ 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);
#ifdef LIBERAL
if (len >= sizeof(long)*4 &&
!((long)dc % sizeof(long)) &&
*dl++ = *ll++ & *rl++;
}
break;
- case OP_XOR:
+ case OP_BIT_XOR:
while (len--) {
*dl++ = *ll++ ^ *rl++;
*dl++ = *ll++ ^ *rl++;
len = remainder;
}
#endif
- switch (optype) {
- case OP_BIT_AND:
- while (len--)
- *dc++ = *lc++ & *rc++;
- break;
- case OP_XOR:
- while (len--)
- *dc++ = *lc++ ^ *rc++;
- goto mop_up;
- case OP_BIT_OR:
- while (len--)
- *dc++ = *lc++ | *rc++;
- mop_up:
- len = SvCUR(sv);
- if (rightlen > len)
- sv_catpvn(sv, SvPVX(right) + len, rightlen - len);
- else if (leftlen > len)
- sv_catpvn(sv, SvPVX(left) + len, leftlen - len);
- break;
+ {
+ switch (optype) {
+ case OP_BIT_AND:
+ while (len--)
+ *dc++ = *lc++ & *rc++;
+ break;
+ case OP_BIT_XOR:
+ while (len--)
+ *dc++ = *lc++ ^ *rc++;
+ goto mop_up;
+ case OP_BIT_OR:
+ while (len--)
+ *dc++ = *lc++ | *rc++;
+ mop_up:
+ len = lensave;
+ if (rightlen > len)
+ sv_catpvn(sv, rsave + len, rightlen - len);
+ else if (leftlen > len)
+ sv_catpvn(sv, lsave + len, leftlen - len);
+ else
+ *SvEND(sv) = '\0';
+ break;
+ }
}
}
{
dSP;
HV *hv = (HV*)POPs;
- register AV *ary = stack;
- I32 i;
register HE *entry;
- char *tmps;
SV *tmpstr;
- I32 dokeys = (op->op_type == OP_KEYS || op->op_type == OP_RV2HV);
- I32 dovalues = (op->op_type == OP_VALUES || op->op_type == OP_RV2HV);
+ I32 gimme = GIMME_V;
+ 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 (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 (!hv)
+ if (gimme == G_VOID)
RETURN;
- if (GIMME != G_ARRAY) {
+
+ if (gimme == G_SCALAR) {
+ I32 i;
dTARGET;
- if (!SvMAGICAL(hv) || !mg_find((SV*)hv,'P'))
+ 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 {
i = 0;
- (void)hv_iterinit(hv);
/*SUPPRESS 560*/
while (entry = hv_iternext(hv)) {
i++;
/* Guess how much room we need. hv_max may be a few too many. Oh well. */
EXTEND(sp, HvMAX(hv) * (dokeys + dovalues));
- (void)hv_iterinit(hv);
-
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);
+ tmpstr = sv_newmortal();
PUTBACK;
sv_setsv(tmpstr,hv_iterval(hv,entry));
+ DEBUG_H(sv_setpvf(tmpstr, "%lu%%%d=%lu",
+ (unsigned long)HeHASH(entry),
+ HvMAX(hv)+1,
+ (unsigned long)(HeHASH(entry) & HvMAX(hv))));
SPAGAIN;
- DEBUG_H( {
- sprintf(buf,"%d%%%d=%d\n",entry->hent_hash,
- HvMAX(hv)+1,entry->hent_hash & HvMAX(hv));
- sv_setpv(tmpstr,buf);
- } )
- XPUSHs(sv_2mortal(tmpstr));
+ XPUSHs(tmpstr);
}
PUTBACK;
}
projects / p5sagit/p5-mst-13.2.git / blobdiff