[p5sagit/p5-mst-13.2.git] / doop.c

/*    doop.c
 *
 *    Copyright (c) 1991-1994, 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.
 *
 */

/*
 * "'So that was the job I felt I had to do when I started,' thought Sam."
 */

#include "EXTERN.h"
#include "perl.h"

#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
#endif

I32
do_trans(sv,arg)
SV *sv;
OP *arg;
{
    register short *tbl;
    register U8 *s;
    register U8 *send;
    register U8 *d;
    register I32 ch;
    register I32 matches = 0;
    register I32 squash = op->op_private & OPpTRANS_SQUASH;
    STRLEN 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]) >= 0) {
		matches++;
		*s = ch;
	    }
	    s++;
	}
    }
    else {
	d = s;
	while (s < send) {
	    if ((ch = tbl[*s]) >= 0) {
		*d = ch;
		if (matches++ && squash) {
		    if (d[-1] == *d)
			matches--;
		    else
			d++;
		}
		else
		    d++;
	    }
	    else if (ch == -1)		/* -1 is unmapped character */
		*d++ = *s;		/* -2 is delete character */
	    s++;
	}
	matches += send - d;	/* account for disappeared chars */
	*d = '\0';
	SvCUR_set(sv, d - (U8*)SvPVX(sv));
    }
    SvSETMAGIC(sv);
    return matches;
}

void
do_join(sv,del,mark,sp)
register SV *sv;
SV *del;
register SV **mark;
register SV **sp;
{
    SV **oldmark = mark;
    register I32 items = sp - mark;
    register STRLEN len;
    STRLEN delimlen;
    register char *delim = SvPV(del, delimlen);
    STRLEN tmplen;

    mark++;
    len = (items > 0 ? (delimlen * (items - 1) ) : 0);
    if (SvTYPE(sv) < SVt_PV)
	sv_upgrade(sv, SVt_PV);
    if (SvLEN(sv) < len + items) {	/* current length is way too short */
	while (items-- > 0) {
	    if (*mark) {
		SvPV(*mark, tmplen);
		len += tmplen;
	    }
	    mark++;
	}
	SvGROW(sv, len + 1);		/* so try to pre-extend */

	mark = oldmark;
	items = sp - mark;;
	++mark;
    }

    if (items-- > 0) {
	char *s;

	if (*mark) {
	    s = SvPV(*mark, tmplen);
	    sv_setpvn(sv, s, tmplen);
	}
	else
	    sv_setpv(sv, "");
	mark++;
    }
    else
	sv_setpv(sv,"");
    len = delimlen;
    if (len) {
	for (; items > 0; items--,mark++) {
	    sv_catpvn(sv,delim,len);
	    sv_catsv(sv,*mark);
	}
    }
    else {
	for (; items > 0; items--,mark++)
	    sv_catsv(sv,*mark);
    }
    SvSETMAGIC(sv);
}

void
do_sprintf(sv,len,sarg)
register SV *sv;
register I32 len;
register SV **sarg;
{
    register char *s;
    register char *t;
    register char *f;
    bool dolong;
#ifdef HAS_QUAD
    bool doquad;
#endif /* HAS_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);	/* XXX Don't know t is writeable */
    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 HAS_QUAD
	doquad =
#endif /* HAS_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 'n': case '*':
		croak("Use of %c in printf format not supported", *t);

	    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 HAS_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 HAS_QUAD
		if (doquad)
		    (void)sprintf(buf,s,(Quad_t)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 HAS_QUAD
		if (doquad)
		    (void)sprintf(buf,s,(unsigned Quad_t)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);
#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);
		*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;
	    if (xs == buf && xlen >= sizeof(buf)) {	/* Ooops! */
		PerlIO_puts(PerlIO_stderr(),"panic: sprintf overflow - memory corrupted!\n");
		my_exit(1);
	    }
	    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);
    SvSETMAGIC(sv);
}

void
do_vecset(sv)
SV *sv;
{
    SV *targ = LvTARG(sv);
    register I32 offset;
    register I32 size;
    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;
	lval &= mask;
	offset >>= 3;
	s[offset] &= ~(mask << size);
	s[offset] |= lval << size;
    }
    else {
	offset >>= 3;
	if (size == 8)
	    s[offset] = lval & 255;
	else if (size == 16) {
	    s[offset] = (lval >> 8) & 255;
	    s[offset+1] = lval & 255;
	}
	else if (size == 32) {
	    s[offset] = (lval >> 24) & 255;
	    s[offset+1] = (lval >> 16) & 255;
	    s[offset+2] = (lval >> 8) & 255;
	    s[offset+3] = lval & 255;
	}
    }
}

void
do_chop(astr,sv)
register SV *astr;
register SV *sv;
{
    STRLEN len;
    char *s;
    
    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))
		do_chop(astr, sv);
	}
        return;
    }
    if (SvTYPE(sv) == SVt_PVHV) {
        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;
    }
    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);
    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)
I32 optype;
SV *sv;
SV *left;
SV *right;
{
#ifdef LIBERAL
    register long *dl;
    register long *ll;
    register long *rl;
#endif
    register char *dc;
    STRLEN leftlen;
    STRLEN rightlen;
    register char *lc = SvPV(left, leftlen);
    register char *rc = SvPV(right, rightlen);
    register I32 len;
    I32 lensave;
    char *lsave = lc;
    char *rsave = rc;

    len = leftlen < rightlen ? leftlen : rightlen;
    lensave = len;
    if (SvOK(sv)) {
	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);
#ifdef LIBERAL
    if (len >= sizeof(long)*4 &&
	!((long)dc % sizeof(long)) &&
	!((long)lc % sizeof(long)) &&
	!((long)rc % sizeof(long)))	/* It's almost always aligned... */
    {
	I32 remainder = len % (sizeof(long)*4);
	len /= (sizeof(long)*4);

	dl = (long*)dc;
	ll = (long*)lc;
	rl = (long*)rc;

	switch (optype) {
	case OP_BIT_AND:
	    while (len--) {
		*dl++ = *ll++ & *rl++;
		*dl++ = *ll++ & *rl++;
		*dl++ = *ll++ & *rl++;
		*dl++ = *ll++ & *rl++;
	    }
	    break;
	case OP_BIT_XOR:
	    while (len--) {
		*dl++ = *ll++ ^ *rl++;
		*dl++ = *ll++ ^ *rl++;
		*dl++ = *ll++ ^ *rl++;
		*dl++ = *ll++ ^ *rl++;
	    }
	    break;
	case OP_BIT_OR:
	    while (len--) {
		*dl++ = *ll++ | *rl++;
		*dl++ = *ll++ | *rl++;
		*dl++ = *ll++ | *rl++;
		*dl++ = *ll++ | *rl++;
	    }
	}

	dc = (char*)dl;
	lc = (char*)ll;
	rc = (char*)rl;

	len = remainder;
    }
#endif
    {
	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;
	}
    }
}

OP *
do_kv(ARGS)
dARGS
{
    dSP;
    HV *hv = (HV*)POPs;
    register HE *entry;
    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 (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 (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 {
	    i = 0;
	    /*SUPPRESS 560*/
	    while (entry = hv_iternext(hv)) {
		i++;
	    }
	}
	PUSHi( i );
	RETURN;
    }

    /* Guess how much room we need.  hv_max may be a few too many.  Oh well. */
    EXTEND(sp, HvMAX(hv) * (dokeys + dovalues));

    PUTBACK;	/* hv_iternext and hv_iterval might clobber stack_sp */
    while (entry = hv_iternext(hv)) {
	SPAGAIN;
	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", HeHASH(entry),
				HvMAX(hv)+1, HeHASH(entry) & HvMAX(hv));
			sv_setpv(tmpstr,buf);
	    } )
	    XPUSHs(sv_2mortal(tmpstr));
	}
	PUTBACK;
    }
    return NORMAL;
}
Commit	Line	Data
a0d0e21e	1	/* doop.c
79072805	2	*
a0d0e21e	3	* Copyright (c) 1991-1994, Larry Wall
79072805	4	*
	5	* You may distribute under the terms of either the GNU General Public
	6	* License or the Artistic License, as specified in the README file.
	7	*
a0d0e21e	8	*/
	9
	10	/*
	11	* "'So that was the job I felt I had to do when I started,' thought Sam."
79072805	12	*/
	13
	14	#include "EXTERN.h"
	15	#include "perl.h"
	16
	17	#if !defined(NSIG) \|\| defined(M_UNIX) \|\| defined(M_XENIX)
	18	#include <signal.h>
	19	#endif
	20
79072805	21	I32
	22	do_trans(sv,arg)
	23	SV *sv;
	24	OP *arg;
	25	{
	26	register short *tbl;
1476d272	27	register U8 *s;
	28	register U8 *send;
	29	register U8 *d;
79072805	30	register I32 ch;
1476d272	31	register I32 matches = 0;
79072805	32	register I32 squash = op->op_private & OPpTRANS_SQUASH;
463ee0b2	33	STRLEN len;
79072805	34
a0d0e21e	35	if (SvREADONLY(sv))
a0d0e21e	36	croak(no_modify);
1476d272	37	tbl = (short*)cPVOP->op_pv;
1476d272	38	s = (U8*)SvPV(sv, len);
a0d0e21e	39	if (!len)
	40	return 0;
	41	if (!SvPOKp(sv))
1476d272	42	s = (U8*)SvPV_force(sv, len);
a0d0e21e	43	(void)SvPOK_only(sv);
463ee0b2	44	send = s + len;
79072805	45	if (!tbl \|\| !s)
463ee0b2	46	croak("panic: do_trans");
79072805	47	DEBUG_t( deb("2.TBL\n"));
	48	if (!op->op_private) {
	49	while (s < send) {
1476d272	50	if ((ch = tbl[*s]) >= 0) {
79072805	51	matches++;
	52	*s = ch;
	53	}
	54	s++;
	55	}
	56	}
	57	else {
	58	d = s;
	59	while (s < send) {
1476d272	60	if ((ch = tbl[*s]) >= 0) {
79072805	61	*d = ch;
	62	if (matches++ && squash) {
	63	if (d[-1] == *d)
	64	matches--;
	65	else
	66	d++;
	67	}
	68	else
	69	d++;
	70	}
	71	else if (ch == -1) /* -1 is unmapped character */
	72	d++ = s; /* -2 is delete character */
	73	s++;
	74	}
	75	matches += send - d; /* account for disappeared chars */
	76	*d = '\0';
1476d272	77	SvCUR_set(sv, d - (U8*)SvPVX(sv));
79072805	78	}
	79	SvSETMAGIC(sv);
	80	return matches;
	81	}
	82
	83	void
	84	do_join(sv,del,mark,sp)
	85	register SV *sv;
	86	SV *del;
	87	register SV **mark;
	88	register SV **sp;
	89	{
	90	SV **oldmark = mark;
	91	register I32 items = sp - mark;
79072805	92	register STRLEN len;
463ee0b2	93	STRLEN delimlen;
	94	register char *delim = SvPV(del, delimlen);
	95	STRLEN tmplen;
79072805	96
	97	mark++;
	98	len = (items > 0 ? (delimlen * (items - 1) ) : 0);
	99	if (SvTYPE(sv) < SVt_PV)
	100	sv_upgrade(sv, SVt_PV);
	101	if (SvLEN(sv) < len + items) { /* current length is way too short */
	102	while (items-- > 0) {
	103	if (*mark) {
463ee0b2	104	SvPV(*mark, tmplen);
463ee0b2	105	len += tmplen;
79072805	106	}
	107	mark++;
	108	}
	109	SvGROW(sv, len + 1); /* so try to pre-extend */
	110
	111	mark = oldmark;
	112	items = sp - mark;;
	113	++mark;
	114	}
	115
463ee0b2	116	if (items-- > 0) {
8990e307	117	char *s;
	118
	119	if (*mark) {
	120	s = SvPV(*mark, tmplen);
	121	sv_setpvn(sv, s, tmplen);
	122	}
	123	else
	124	sv_setpv(sv, "");
463ee0b2	125	mark++;
463ee0b2	126	}
79072805	127	else
	128	sv_setpv(sv,"");
	129	len = delimlen;
	130	if (len) {
	131	for (; items > 0; items--,mark++) {
	132	sv_catpvn(sv,delim,len);
	133	sv_catsv(sv,*mark);
	134	}
	135	}
	136	else {
	137	for (; items > 0; items--,mark++)
	138	sv_catsv(sv,*mark);
	139	}
	140	SvSETMAGIC(sv);
	141	}
	142
	143	void
	144	do_sprintf(sv,len,sarg)
	145	register SV *sv;
	146	register I32 len;
	147	register SV **sarg;
	148	{
	149	register char *s;
	150	register char *t;
	151	register char *f;
	152	bool dolong;
ecfc5424	153	#ifdef HAS_QUAD
79072805	154	bool doquad;
ecfc5424	155	#endif /* HAS_QUAD */
79072805	156	char ch;
	157	register char *send;
	158	register SV *arg;
	159	char *xs;
	160	I32 xlen;
	161	I32 pre;
	162	I32 post;
	163	double value;
463ee0b2	164	STRLEN arglen;
79072805	165
	166	sv_setpv(sv,"");
	167	len--; /* don't count pattern string */
a0d0e21e	168	t = s = SvPV(sarg, arglen); / XXX Don't know t is writeable */
463ee0b2	169	send = s + arglen;
79072805	170	sarg++;
	171	for ( ; ; len--) {
	172
	173	/SUPPRESS 560/
	174	if (len <= 0 \|\| !(arg = *sarg++))
	175	arg = &sv_no;
	176
	177	/SUPPRESS 530/
	178	for ( ; t < send && *t != '%'; t++) ;
	179	if (t >= send)
	180	break; /* end of run_format string, ignore extra args */
	181	f = t;
	182	*buf = '\0';
	183	xs = buf;
ecfc5424	184	#ifdef HAS_QUAD
79072805	185	doquad =
ecfc5424	186	#endif /* HAS_QUAD */
79072805	187	dolong = FALSE;
	188	pre = post = 0;
	189	for (t++; t < send; t++) {
	190	switch (*t) {
	191	default:
	192	ch = *(++t);
	193	*t = '\0';
	194	(void)sprintf(xs,f);
	195	len++, sarg--;
	196	xlen = strlen(xs);
	197	break;
748a9306	198	case 'n': case '*':
	199	croak("Use of %c in printf format not supported", *t);
	200
79072805	201	case '0': case '1': case '2': case '3': case '4':
	202	case '5': case '6': case '7': case '8': case '9':
	203	case '.': case '#': case '-': case '+': case ' ':
	204	continue;
463ee0b2	205	case 'l':
ecfc5424	206	#ifdef HAS_QUAD
79072805	207	if (dolong) {
	208	dolong = FALSE;
	209	doquad = TRUE;
	210	} else
	211	#endif
	212	dolong = TRUE;
	213	continue;
	214	case 'c':
	215	ch = *(++t);
	216	*t = '\0';
463ee0b2	217	xlen = SvIV(arg);
79072805	218	if (strEQ(f,"%c")) { /* some printfs fail on null chars */
	219	*xs = xlen;
	220	xs[1] = '\0';
	221	xlen = 1;
	222	}
	223	else {
	224	(void)sprintf(xs,f,xlen);
	225	xlen = strlen(xs);
	226	}
	227	break;
	228	case 'D':
	229	dolong = TRUE;
	230	/* FALL THROUGH */
	231	case 'd':
	232	ch = *(++t);
	233	*t = '\0';
ecfc5424	234	#ifdef HAS_QUAD
79072805	235	if (doquad)
ecfc5424	236	(void)sprintf(buf,s,(Quad_t)SvNV(arg));
79072805	237	else
	238	#endif
	239	if (dolong)
463ee0b2	240	(void)sprintf(xs,f,(long)SvNV(arg));
79072805	241	else
463ee0b2	242	(void)sprintf(xs,f,SvIV(arg));
79072805	243	xlen = strlen(xs);
	244	break;
	245	case 'X': case 'O':
	246	dolong = TRUE;
	247	/* FALL THROUGH */
	248	case 'x': case 'o': case 'u':
	249	ch = *(++t);
	250	*t = '\0';
463ee0b2	251	value = SvNV(arg);
ecfc5424	252	#ifdef HAS_QUAD
79072805	253	if (doquad)
ecfc5424	254	(void)sprintf(buf,s,(unsigned Quad_t)value);
79072805	255	else
	256	#endif
	257	if (dolong)
	258	(void)sprintf(xs,f,U_L(value));
	259	else
	260	(void)sprintf(xs,f,U_I(value));
	261	xlen = strlen(xs);
	262	break;
	263	case 'E': case 'e': case 'f': case 'G': case 'g':
	264	ch = *(++t);
	265	*t = '\0';
463ee0b2	266	(void)sprintf(xs,f,SvNV(arg));
79072805	267	xlen = strlen(xs);
bbce6d69	268	#ifdef LC_NUMERIC
ff68c719	269	/*
	270	* User-defined locales may include arbitrary characters.
	271	* And, unfortunately, some system may alloc the "C" locale
	272	* to be overridden by a malicious user.
	273	*/
	274	if (op->op_type == OP_SPRINTF)
bbce6d69	275	SvTAINTED_on(sv);
ff68c719	276	#endif /* LC_NUMERIC */
79072805	277	break;
	278	case 's':
	279	ch = *(++t);
	280	*t = '\0';
463ee0b2	281	xs = SvPV(arg, arglen);
463ee0b2	282	xlen = (I32)arglen;
79072805	283	if (strEQ(f,"%s")) { /* some printfs fail on >128 chars */
	284	break; /* so handle simple cases */
	285	}
	286	else if (f[1] == '-') {
93a17b20	287	char *mp = strchr(f, '.');
79072805	288	I32 min = atoi(f+2);
	289
	290	if (mp) {
	291	I32 max = atoi(mp+1);
	292
	293	if (xlen > max)
	294	xlen = max;
	295	}
	296	if (xlen < min)
	297	post = min - xlen;
	298	break;
	299	}
	300	else if (isDIGIT(f[1])) {
93a17b20	301	char *mp = strchr(f, '.');
79072805	302	I32 min = atoi(f+1);
	303
	304	if (mp) {
	305	I32 max = atoi(mp+1);
	306
	307	if (xlen > max)
	308	xlen = max;
	309	}
	310	if (xlen < min)
	311	pre = min - xlen;
	312	break;
	313	}
	314	strcpy(tokenbuf+64,f); /* sprintf($s,...$s...) */
	315	*t = ch;
	316	(void)sprintf(buf,tokenbuf+64,xs);
	317	xs = buf;
	318	xlen = strlen(xs);
	319	break;
	320	}
	321	/* end of switch, copy results */
	322	*t = ch;
4633a7c4	323	if (xs == buf && xlen >= sizeof(buf)) { /* Ooops! */
760ac839	324	PerlIO_puts(PerlIO_stderr(),"panic: sprintf overflow - memory corrupted!\n");
4633a7c4	325	my_exit(1);
4633a7c4	326	}
79072805	327	SvGROW(sv, SvCUR(sv) + (f - s) + xlen + 1 + pre + post);
	328	sv_catpvn(sv, s, f - s);
	329	if (pre) {
463ee0b2	330	repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, pre);
79072805	331	SvCUR(sv) += pre;
	332	}
	333	sv_catpvn(sv, xs, xlen);
	334	if (post) {
463ee0b2	335	repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, post);
79072805	336	SvCUR(sv) += post;
	337	}
	338	s = t;
	339	break; /* break from for loop */
	340	}
	341	}
	342	sv_catpvn(sv, s, t - s);
	343	SvSETMAGIC(sv);
	344	}
	345
	346	void
	347	do_vecset(sv)
	348	SV *sv;
	349	{
	350	SV *targ = LvTARG(sv);
	351	register I32 offset;
	352	register I32 size;
8990e307	353	register unsigned char *s;
8990e307	354	register unsigned long lval;
79072805	355	I32 mask;
a0d0e21e	356	STRLEN targlen;
a0d0e21e	357	STRLEN len;
79072805	358
8990e307	359	if (!targ)
8990e307	360	return;
a0d0e21e	361	s = (unsigned char*)SvPV_force(targ, targlen);
8990e307	362	lval = U_L(SvNV(sv));
79072805	363	offset = LvTARGOFF(sv);
79072805	364	size = LvTARGLEN(sv);
a0d0e21e	365
	366	len = (offset + size + 7) / 8;
	367	if (len > targlen) {
	368	s = (unsigned char*)SvGROW(targ, len + 1);
	369	(void)memzero(s + targlen, len - targlen + 1);
	370	SvCUR_set(targ, len);
	371	}
	372
79072805	373	if (size < 8) {
	374	mask = (1 << size) - 1;
	375	size = offset & 7;
	376	lval &= mask;
	377	offset >>= 3;
	378	s[offset] &= ~(mask << size);
	379	s[offset] \|= lval << size;
	380	}
	381	else {
a0d0e21e	382	offset >>= 3;
79072805	383	if (size == 8)
	384	s[offset] = lval & 255;
	385	else if (size == 16) {
	386	s[offset] = (lval >> 8) & 255;
	387	s[offset+1] = lval & 255;
	388	}
	389	else if (size == 32) {
	390	s[offset] = (lval >> 24) & 255;
	391	s[offset+1] = (lval >> 16) & 255;
	392	s[offset+2] = (lval >> 8) & 255;
	393	s[offset+3] = lval & 255;
	394	}
	395	}
	396	}
	397
	398	void
	399	do_chop(astr,sv)
	400	register SV *astr;
	401	register SV *sv;
	402	{
463ee0b2	403	STRLEN len;
a0d0e21e	404	char *s;
a0d0e21e	405
79072805	406	if (SvTYPE(sv) == SVt_PVAV) {
a0d0e21e	407	register I32 i;
	408	I32 max;
	409	AV* av = (AV*)sv;
	410	max = AvFILL(av);
	411	for (i = 0; i <= max; i++) {
	412	sv = (SV*)av_fetch(av, i, FALSE);
	413	if (sv && ((sv = (SV*)sv), sv != &sv_undef))
	414	do_chop(astr, sv);
	415	}
	416	return;
79072805	417	}
79072805	418	if (SvTYPE(sv) == SVt_PVHV) {
a0d0e21e	419	HV* hv = (HV*)sv;
	420	HE* entry;
	421	(void)hv_iterinit(hv);
	422	/SUPPRESS 560/
	423	while (entry = hv_iternext(hv))
	424	do_chop(astr,hv_iterval(hv,entry));
	425	return;
79072805	426	}
a0d0e21e	427	s = SvPV(sv, len);
748a9306	428	if (len && !SvPOK(sv))
a0d0e21e	429	s = SvPV_force(sv, len);
	430	if (s && len) {
	431	s += --len;
	432	sv_setpvn(astr, s, 1);
	433	*s = '\0';
	434	SvCUR_set(sv, len);
	435	SvNIOK_off(sv);
79072805	436	}
79072805	437	else
a0d0e21e	438	sv_setpvn(astr, "", 0);
	439	SvSETMAGIC(sv);
	440	}
	441
	442	I32
	443	do_chomp(sv)
	444	register SV *sv;
	445	{
c07a80fd	446	register I32 count;
a0d0e21e	447	STRLEN len;
a0d0e21e	448	char *s;
c07a80fd	449
	450	if (RsSNARF(rs))
	451	return 0;
	452	count = 0;
a0d0e21e	453	if (SvTYPE(sv) == SVt_PVAV) {
	454	register I32 i;
	455	I32 max;
	456	AV* av = (AV*)sv;
	457	max = AvFILL(av);
	458	for (i = 0; i <= max; i++) {
	459	sv = (SV*)av_fetch(av, i, FALSE);
	460	if (sv && ((sv = (SV*)sv), sv != &sv_undef))
	461	count += do_chomp(sv);
	462	}
	463	return count;
	464	}
	465	if (SvTYPE(sv) == SVt_PVHV) {
	466	HV* hv = (HV*)sv;
	467	HE* entry;
	468	(void)hv_iterinit(hv);
	469	/SUPPRESS 560/
	470	while (entry = hv_iternext(hv))
	471	count += do_chomp(hv_iterval(hv,entry));
	472	return count;
	473	}
	474	s = SvPV(sv, len);
	475	if (len && !SvPOKp(sv))
	476	s = SvPV_force(sv, len);
	477	if (s && len) {
	478	s += --len;
c07a80fd	479	if (RsPARA(rs)) {
a0d0e21e	480	if (*s != '\n')
	481	goto nope;
	482	++count;
	483	while (len && s[-1] == '\n') {
	484	--len;
	485	--s;
	486	++count;
	487	}
	488	}
a0d0e21e	489	else {
c07a80fd	490	STRLEN rslen;
	491	char *rsptr = SvPV(rs, rslen);
	492	if (rslen == 1) {
	493	if (s != rsptr)
	494	goto nope;
	495	++count;
	496	}
	497	else {
8c2cee6f	498	if (len < rslen - 1)
c07a80fd	499	goto nope;
	500	len -= rslen - 1;
	501	s -= rslen - 1;
36477c24	502	if (memNE(s, rsptr, rslen))
c07a80fd	503	goto nope;
	504	count += rslen;
	505	}
a0d0e21e	506	}
a0d0e21e	507	*s = '\0';
	508	SvCUR_set(sv, len);
	509	SvNIOK_off(sv);
	510	}
	511	nope:
	512	SvSETMAGIC(sv);
	513	return count;
	514	}
79072805	515
	516	void
	517	do_vop(optype,sv,left,right)
	518	I32 optype;
	519	SV *sv;
	520	SV *left;
	521	SV *right;
	522	{
	523	#ifdef LIBERAL
	524	register long *dl;
	525	register long *ll;
	526	register long *rl;
	527	#endif
	528	register char *dc;
463ee0b2	529	STRLEN leftlen;
	530	STRLEN rightlen;
	531	register char *lc = SvPV(left, leftlen);
	532	register char *rc = SvPV(right, rightlen);
79072805	533	register I32 len;
a0d0e21e	534	I32 lensave;
e963928e	535	char *lsave = lc;
e963928e	536	char *rsave = rc;
79072805	537
93a17b20	538	len = leftlen < rightlen ? leftlen : rightlen;
a0d0e21e	539	lensave = len;
ff68c719	540	if (SvOK(sv)) {
	541	dc = SvPV_force(sv, na);
	542	if (SvCUR(sv) < len) {
	543	dc = SvGROW(sv, len + 1);
	544	(void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
	545	}
	546	}
	547	else {
	548	I32 needlen = ((optype == OP_BIT_AND)
	549	? len : (leftlen > rightlen ? leftlen : rightlen));
	550	Newz(801, dc, needlen + 1, char);
	551	(void)sv_usepvn(sv, dc, needlen);
	552	dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
79072805	553	}
a0d0e21e	554	SvCUR_set(sv, len);
a0d0e21e	555	(void)SvPOK_only(sv);
79072805	556	#ifdef LIBERAL
	557	if (len >= sizeof(long)*4 &&
	558	!((long)dc % sizeof(long)) &&
	559	!((long)lc % sizeof(long)) &&
	560	!((long)rc % sizeof(long))) /* It's almost always aligned... */
	561	{
	562	I32 remainder = len % (sizeof(long)*4);
	563	len /= (sizeof(long)*4);
	564
	565	dl = (long*)dc;
	566	ll = (long*)lc;
	567	rl = (long*)rc;
	568
	569	switch (optype) {
	570	case OP_BIT_AND:
	571	while (len--) {
	572	dl++ = ll++ & *rl++;
	573	dl++ = ll++ & *rl++;
	574	dl++ = ll++ & *rl++;
	575	dl++ = ll++ & *rl++;
	576	}
	577	break;
a0d0e21e	578	case OP_BIT_XOR:
79072805	579	while (len--) {
	580	dl++ = ll++ ^ *rl++;
	581	dl++ = ll++ ^ *rl++;
	582	dl++ = ll++ ^ *rl++;
	583	dl++ = ll++ ^ *rl++;
	584	}
	585	break;
	586	case OP_BIT_OR:
	587	while (len--) {
	588	dl++ = ll++ \| *rl++;
	589	dl++ = ll++ \| *rl++;
	590	dl++ = ll++ \| *rl++;
	591	dl++ = ll++ \| *rl++;
	592	}
	593	}
	594
	595	dc = (char*)dl;
	596	lc = (char*)ll;
	597	rc = (char*)rl;
	598
	599	len = remainder;
	600	}
	601	#endif
a0d0e21e	602	{
a0d0e21e	603	switch (optype) {
	604	case OP_BIT_AND:
	605	while (len--)
	606	dc++ = lc++ & *rc++;
	607	break;
	608	case OP_BIT_XOR:
	609	while (len--)
	610	dc++ = lc++ ^ *rc++;
	611	goto mop_up;
	612	case OP_BIT_OR:
	613	while (len--)
	614	dc++ = lc++ \| *rc++;
	615	mop_up:
	616	len = lensave;
	617	if (rightlen > len)
	618	sv_catpvn(sv, rsave + len, rightlen - len);
	619	else if (leftlen > len)
	620	sv_catpvn(sv, lsave + len, leftlen - len);
4633a7c4	621	else
4633a7c4	622	*SvEND(sv) = '\0';
a0d0e21e	623	break;
a0d0e21e	624	}
79072805	625	}
79072805	626	}
463ee0b2	627
	628	OP *
	629	do_kv(ARGS)
	630	dARGS
	631	{
	632	dSP;
	633	HV hv = (HV)POPs;
463ee0b2	634	register HE *entry;
463ee0b2	635	SV *tmpstr;
a0d0e21e	636	I32 dokeys = (op->op_type == OP_KEYS);
	637	I32 dovalues = (op->op_type == OP_VALUES);
	638
	639	if (op->op_type == OP_RV2HV \|\| op->op_type == OP_PADHV)
	640	dokeys = dovalues = TRUE;
463ee0b2	641
85581909	642	if (!hv) {
	643	if (op->op_flags & OPf_MOD) { /* lvalue */
	644	dTARGET; /* make sure to clear its target here */
	645	if (SvTYPE(TARG) == SVt_PVLV)
	646	LvTARG(TARG) = Nullsv;
	647	PUSHs(TARG);
	648	}
463ee0b2	649	RETURN;
85581909	650	}
748a9306	651
	652	(void)hv_iterinit(hv); /* always reset iterator regardless */
	653
463ee0b2	654	if (GIMME != G_ARRAY) {
8c2cee6f	655	I32 i;
463ee0b2	656	dTARGET;
463ee0b2	657
85581909	658	if (op->op_flags & OPf_MOD) { /* lvalue */
	659	if (SvTYPE(TARG) < SVt_PVLV) {
	660	sv_upgrade(TARG, SVt_PVLV);
	661	sv_magic(TARG, Nullsv, 'k', Nullch, 0);
	662	}
	663	LvTYPE(TARG) = 'k';
	664	LvTARG(TARG) = (SV*)hv;
	665	PUSHs(TARG);
	666	RETURN;
	667	}
	668
8990e307	669	if (!SvRMAGICAL(hv) \|\| !mg_find((SV*)hv,'P'))
463ee0b2	670	i = HvKEYS(hv);
	671	else {
	672	i = 0;
463ee0b2	673	/SUPPRESS 560/
	674	while (entry = hv_iternext(hv)) {
	675	i++;
	676	}
	677	}
	678	PUSHi( i );
	679	RETURN;
	680	}
	681
	682	/* Guess how much room we need. hv_max may be a few too many. Oh well. */
	683	EXTEND(sp, HvMAX(hv) * (dokeys + dovalues));
	684
463ee0b2	685	PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
	686	while (entry = hv_iternext(hv)) {
	687	SPAGAIN;
8c2cee6f	688	if (dokeys)
8c2cee6f	689	XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
463ee0b2	690	if (dovalues) {
	691	tmpstr = NEWSV(45,0);
	692	PUTBACK;
	693	sv_setsv(tmpstr,hv_iterval(hv,entry));
	694	SPAGAIN;
	695	DEBUG_H( {
8c2cee6f	696	sprintf(buf,"%d%%%d=%d\n", HeHASH(entry),
	697	HvMAX(hv)+1, HeHASH(entry) & HvMAX(hv));
	698	sv_setpv(tmpstr,buf);
463ee0b2	699	} )
	700	XPUSHs(sv_2mortal(tmpstr));
	701	}
	702	PUTBACK;
	703	}
	704	return NORMAL;
	705	}
	706