[perl5.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

#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;
OP *arg;
{
    dTHR;
    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);
		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! */
		fputs("panic: sprintf overflow - memory corrupted!\n",stderr);
		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)
		    goto nope;
		len -= rslen - 1;
		s -= rslen - 1;
		if (bcmp(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;

    dc = SvPV_force(sv,na);
    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);
    }
    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
    {
	char *lsave = lc;
	char *rsave = rc;
	
	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;
    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)
	RETURN;

    (void)hv_iterinit(hv);	/* always reset iterator regardless */

    if (GIMME != G_ARRAY) {
	dTARGET;

	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) {
	    tmps = hv_iterkey(entry,&i);	/* won't clobber stack_sp */
	    if (!i)
		tmps = "";
	    XPUSHs(sv_2mortal(newSVpv(tmps,i)));
	}
	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);
	    } )
	    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 LW	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 LW	8	*/
	9
	10	/*
	11	* "'So that was the job I felt I had to do when I started,' thought Sam."
79072805 LW	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
	21	#ifdef BUGGY_MSC
	22	#pragma function(memcmp)
	23	#endif /* BUGGY_MSC */
	24
79072805 LW	25	#ifdef BUGGY_MSC
	26	#pragma intrinsic(memcmp)
	27	#endif /* BUGGY_MSC */
	28
	29	I32
	30	do_trans(sv,arg)
	31	SV *sv;
	32	OP *arg;
	33	{
11343788	34	dTHR;
79072805	35	register short *tbl;
1476d272	36	register U8 *s;
	37	register U8 *send;
	38	register U8 *d;
79072805	39	register I32 ch;
1476d272	40	register I32 matches = 0;
79072805	41	register I32 squash = op->op_private & OPpTRANS_SQUASH;
463ee0b2	42	STRLEN len;
79072805	43
a0d0e21e LW	44	if (SvREADONLY(sv))
a0d0e21e LW	45	croak(no_modify);
1476d272	46	tbl = (short*)cPVOP->op_pv;
1476d272	47	s = (U8*)SvPV(sv, len);
a0d0e21e LW	48	if (!len)
	49	return 0;
	50	if (!SvPOKp(sv))
1476d272	51	s = (U8*)SvPV_force(sv, len);
a0d0e21e	52	(void)SvPOK_only(sv);
463ee0b2	53	send = s + len;
79072805	54	if (!tbl \|\| !s)
463ee0b2	55	croak("panic: do_trans");
79072805 LW	56	DEBUG_t( deb("2.TBL\n"));
	57	if (!op->op_private) {
	58	while (s < send) {
1476d272	59	if ((ch = tbl[*s]) >= 0) {
79072805 LW	60	matches++;
	61	*s = ch;
	62	}
	63	s++;
	64	}
	65	}
	66	else {
	67	d = s;
	68	while (s < send) {
1476d272	69	if ((ch = tbl[*s]) >= 0) {
79072805 LW	70	*d = ch;
	71	if (matches++ && squash) {
	72	if (d[-1] == *d)
	73	matches--;
	74	else
	75	d++;
	76	}
	77	else
	78	d++;
	79	}
	80	else if (ch == -1) /* -1 is unmapped character */
	81	d++ = s; /* -2 is delete character */
	82	s++;
	83	}
	84	matches += send - d; /* account for disappeared chars */
	85	*d = '\0';
1476d272	86	SvCUR_set(sv, d - (U8*)SvPVX(sv));
79072805 LW	87	}
	88	SvSETMAGIC(sv);
	89	return matches;
	90	}
	91
	92	void
	93	do_join(sv,del,mark,sp)
	94	register SV *sv;
	95	SV *del;
	96	register SV **mark;
	97	register SV **sp;
	98	{
	99	SV **oldmark = mark;
	100	register I32 items = sp - mark;
79072805	101	register STRLEN len;
463ee0b2 LW	102	STRLEN delimlen;
	103	register char *delim = SvPV(del, delimlen);
	104	STRLEN tmplen;
79072805 LW	105
	106	mark++;
	107	len = (items > 0 ? (delimlen * (items - 1) ) : 0);
	108	if (SvTYPE(sv) < SVt_PV)
	109	sv_upgrade(sv, SVt_PV);
	110	if (SvLEN(sv) < len + items) { /* current length is way too short */
	111	while (items-- > 0) {
	112	if (*mark) {
463ee0b2 LW	113	SvPV(*mark, tmplen);
463ee0b2 LW	114	len += tmplen;
79072805 LW	115	}
	116	mark++;
	117	}
	118	SvGROW(sv, len + 1); /* so try to pre-extend */
	119
	120	mark = oldmark;
	121	items = sp - mark;;
	122	++mark;
	123	}
	124
463ee0b2	125	if (items-- > 0) {
8990e307 LW	126	char *s;
	127
	128	if (*mark) {
	129	s = SvPV(*mark, tmplen);
	130	sv_setpvn(sv, s, tmplen);
	131	}
	132	else
	133	sv_setpv(sv, "");
463ee0b2 LW	134	mark++;
463ee0b2 LW	135	}
79072805 LW	136	else
	137	sv_setpv(sv,"");
	138	len = delimlen;
	139	if (len) {
	140	for (; items > 0; items--,mark++) {
	141	sv_catpvn(sv,delim,len);
	142	sv_catsv(sv,*mark);
	143	}
	144	}
	145	else {
	146	for (; items > 0; items--,mark++)
	147	sv_catsv(sv,*mark);
	148	}
	149	SvSETMAGIC(sv);
	150	}
	151
	152	void
	153	do_sprintf(sv,len,sarg)
	154	register SV *sv;
	155	register I32 len;
	156	register SV **sarg;
	157	{
	158	register char *s;
	159	register char *t;
	160	register char *f;
	161	bool dolong;
ecfc5424	162	#ifdef HAS_QUAD
79072805	163	bool doquad;
ecfc5424	164	#endif /* HAS_QUAD */
79072805 LW	165	char ch;
	166	register char *send;
	167	register SV *arg;
	168	char *xs;
	169	I32 xlen;
	170	I32 pre;
	171	I32 post;
	172	double value;
463ee0b2	173	STRLEN arglen;
79072805 LW	174
	175	sv_setpv(sv,"");
	176	len--; /* don't count pattern string */
a0d0e21e	177	t = s = SvPV(sarg, arglen); / XXX Don't know t is writeable */
463ee0b2	178	send = s + arglen;
79072805 LW	179	sarg++;
	180	for ( ; ; len--) {
	181
	182	/SUPPRESS 560/
	183	if (len <= 0 \|\| !(arg = *sarg++))
	184	arg = &sv_no;
	185
	186	/SUPPRESS 530/
	187	for ( ; t < send && *t != '%'; t++) ;
	188	if (t >= send)
	189	break; /* end of run_format string, ignore extra args */
	190	f = t;
	191	*buf = '\0';
	192	xs = buf;
ecfc5424	193	#ifdef HAS_QUAD
79072805	194	doquad =
ecfc5424	195	#endif /* HAS_QUAD */
79072805 LW	196	dolong = FALSE;
	197	pre = post = 0;
	198	for (t++; t < send; t++) {
	199	switch (*t) {
	200	default:
	201	ch = *(++t);
	202	*t = '\0';
	203	(void)sprintf(xs,f);
	204	len++, sarg--;
	205	xlen = strlen(xs);
	206	break;
748a9306 LW	207	case 'n': case '*':
	208	croak("Use of %c in printf format not supported", *t);
	209
79072805 LW	210	case '0': case '1': case '2': case '3': case '4':
	211	case '5': case '6': case '7': case '8': case '9':
	212	case '.': case '#': case '-': case '+': case ' ':
	213	continue;
463ee0b2	214	case 'l':
ecfc5424	215	#ifdef HAS_QUAD
79072805 LW	216	if (dolong) {
	217	dolong = FALSE;
	218	doquad = TRUE;
	219	} else
	220	#endif
	221	dolong = TRUE;
	222	continue;
	223	case 'c':
	224	ch = *(++t);
	225	*t = '\0';
463ee0b2	226	xlen = SvIV(arg);
79072805 LW	227	if (strEQ(f,"%c")) { /* some printfs fail on null chars */
	228	*xs = xlen;
	229	xs[1] = '\0';
	230	xlen = 1;
	231	}
	232	else {
	233	(void)sprintf(xs,f,xlen);
	234	xlen = strlen(xs);
	235	}
	236	break;
	237	case 'D':
	238	dolong = TRUE;
	239	/* FALL THROUGH */
	240	case 'd':
	241	ch = *(++t);
	242	*t = '\0';
ecfc5424	243	#ifdef HAS_QUAD
79072805	244	if (doquad)
ecfc5424	245	(void)sprintf(buf,s,(Quad_t)SvNV(arg));
79072805 LW	246	else
	247	#endif
	248	if (dolong)
463ee0b2	249	(void)sprintf(xs,f,(long)SvNV(arg));
79072805	250	else
463ee0b2	251	(void)sprintf(xs,f,SvIV(arg));
79072805 LW	252	xlen = strlen(xs);
	253	break;
	254	case 'X': case 'O':
	255	dolong = TRUE;
	256	/* FALL THROUGH */
	257	case 'x': case 'o': case 'u':
	258	ch = *(++t);
	259	*t = '\0';
463ee0b2	260	value = SvNV(arg);
ecfc5424	261	#ifdef HAS_QUAD
79072805	262	if (doquad)
ecfc5424	263	(void)sprintf(buf,s,(unsigned Quad_t)value);
79072805 LW	264	else
	265	#endif
	266	if (dolong)
	267	(void)sprintf(xs,f,U_L(value));
	268	else
	269	(void)sprintf(xs,f,U_I(value));
	270	xlen = strlen(xs);
	271	break;
	272	case 'E': case 'e': case 'f': case 'G': case 'g':
	273	ch = *(++t);
	274	*t = '\0';
463ee0b2	275	(void)sprintf(xs,f,SvNV(arg));
79072805 LW	276	xlen = strlen(xs);
	277	break;
	278	case 's':
	279	ch = *(++t);
	280	*t = '\0';
463ee0b2 LW	281	xs = SvPV(arg, arglen);
463ee0b2 LW	282	xlen = (I32)arglen;
79072805 LW	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 LW	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 LW	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 LW	323	if (xs == buf && xlen >= sizeof(buf)) { /* Ooops! */
	324	fputs("panic: sprintf overflow - memory corrupted!\n",stderr);
	325	my_exit(1);
	326	}
79072805 LW	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 LW	331	SvCUR(sv) += pre;
	332	}
	333	sv_catpvn(sv, xs, xlen);
	334	if (post) {
463ee0b2	335	repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, post);
79072805 LW	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 LW	353	register unsigned char *s;
8990e307 LW	354	register unsigned long lval;
79072805	355	I32 mask;
a0d0e21e LW	356	STRLEN targlen;
a0d0e21e LW	357	STRLEN len;
79072805	358
8990e307 LW	359	if (!targ)
8990e307 LW	360	return;
a0d0e21e	361	s = (unsigned char*)SvPV_force(targ, targlen);
8990e307	362	lval = U_L(SvNV(sv));
79072805 LW	363	offset = LvTARGOFF(sv);
79072805 LW	364	size = LvTARGLEN(sv);
a0d0e21e LW	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 LW	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 LW	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 LW	404	char *s;
a0d0e21e LW	405
79072805	406	if (SvTYPE(sv) == SVt_PVAV) {
a0d0e21e LW	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 LW	417	}
79072805 LW	418	if (SvTYPE(sv) == SVt_PVHV) {
a0d0e21e LW	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 LW	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 LW	436	}
79072805 LW	437	else
a0d0e21e LW	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 LW	447	STRLEN len;
a0d0e21e LW	448	char *s;
c07a80fd	449
	450	if (RsSNARF(rs))
	451	return 0;
	452	count = 0;
a0d0e21e LW	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 LW	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 {
	498	if (len < rslen)
	499	goto nope;
	500	len -= rslen - 1;
	501	s -= rslen - 1;
	502	if (bcmp(s, rsptr, rslen))
	503	goto nope;
	504	count += rslen;
	505	}
a0d0e21e	506	}
a0d0e21e LW	507	*s = '\0';
	508	SvCUR_set(sv, len);
	509	SvNIOK_off(sv);
	510	}
	511	nope:
	512	SvSETMAGIC(sv);
	513	return count;
	514	}
79072805 LW	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 LW	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;
79072805	535
a0d0e21e	536	dc = SvPV_force(sv,na);
93a17b20	537	len = leftlen < rightlen ? leftlen : rightlen;
a0d0e21e LW	538	lensave = len;
	539	if (SvCUR(sv) < len) {
	540	dc = SvGROW(sv,len + 1);
	541	(void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
79072805	542	}
a0d0e21e LW	543	SvCUR_set(sv, len);
a0d0e21e LW	544	(void)SvPOK_only(sv);
79072805 LW	545	#ifdef LIBERAL
	546	if (len >= sizeof(long)*4 &&
	547	!((long)dc % sizeof(long)) &&
	548	!((long)lc % sizeof(long)) &&
	549	!((long)rc % sizeof(long))) /* It's almost always aligned... */
	550	{
	551	I32 remainder = len % (sizeof(long)*4);
	552	len /= (sizeof(long)*4);
	553
	554	dl = (long*)dc;
	555	ll = (long*)lc;
	556	rl = (long*)rc;
	557
	558	switch (optype) {
	559	case OP_BIT_AND:
	560	while (len--) {
	561	dl++ = ll++ & *rl++;
	562	dl++ = ll++ & *rl++;
	563	dl++ = ll++ & *rl++;
	564	dl++ = ll++ & *rl++;
	565	}
	566	break;
a0d0e21e	567	case OP_BIT_XOR:
79072805 LW	568	while (len--) {
	569	dl++ = ll++ ^ *rl++;
	570	dl++ = ll++ ^ *rl++;
	571	dl++ = ll++ ^ *rl++;
	572	dl++ = ll++ ^ *rl++;
	573	}
	574	break;
	575	case OP_BIT_OR:
	576	while (len--) {
	577	dl++ = ll++ \| *rl++;
	578	dl++ = ll++ \| *rl++;
	579	dl++ = ll++ \| *rl++;
	580	dl++ = ll++ \| *rl++;
	581	}
	582	}
	583
	584	dc = (char*)dl;
	585	lc = (char*)ll;
	586	rc = (char*)rl;
	587
	588	len = remainder;
	589	}
	590	#endif
a0d0e21e LW	591	{
	592	char *lsave = lc;
	593	char *rsave = rc;
	594
	595	switch (optype) {
	596	case OP_BIT_AND:
	597	while (len--)
	598	dc++ = lc++ & *rc++;
	599	break;
	600	case OP_BIT_XOR:
	601	while (len--)
	602	dc++ = lc++ ^ *rc++;
	603	goto mop_up;
	604	case OP_BIT_OR:
	605	while (len--)
	606	dc++ = lc++ \| *rc++;
	607	mop_up:
	608	len = lensave;
	609	if (rightlen > len)
	610	sv_catpvn(sv, rsave + len, rightlen - len);
	611	else if (leftlen > len)
	612	sv_catpvn(sv, lsave + len, leftlen - len);
4633a7c4 LW	613	else
4633a7c4 LW	614	*SvEND(sv) = '\0';
a0d0e21e LW	615	break;
a0d0e21e LW	616	}
79072805 LW	617	}
79072805 LW	618	}
463ee0b2 LW	619
	620	OP *
	621	do_kv(ARGS)
	622	dARGS
	623	{
	624	dSP;
	625	HV hv = (HV)POPs;
463ee0b2 LW	626	I32 i;
	627	register HE *entry;
	628	char *tmps;
	629	SV *tmpstr;
a0d0e21e LW	630	I32 dokeys = (op->op_type == OP_KEYS);
	631	I32 dovalues = (op->op_type == OP_VALUES);
	632
	633	if (op->op_type == OP_RV2HV \|\| op->op_type == OP_PADHV)
	634	dokeys = dovalues = TRUE;
463ee0b2 LW	635
	636	if (!hv)
	637	RETURN;
748a9306 LW	638
	639	(void)hv_iterinit(hv); /* always reset iterator regardless */
	640
463ee0b2 LW	641	if (GIMME != G_ARRAY) {
	642	dTARGET;
	643
8990e307	644	if (!SvRMAGICAL(hv) \|\| !mg_find((SV*)hv,'P'))
463ee0b2 LW	645	i = HvKEYS(hv);
	646	else {
	647	i = 0;
463ee0b2 LW	648	/SUPPRESS 560/
	649	while (entry = hv_iternext(hv)) {
	650	i++;
	651	}
	652	}
	653	PUSHi( i );
	654	RETURN;
	655	}
	656
	657	/* Guess how much room we need. hv_max may be a few too many. Oh well. */
	658	EXTEND(sp, HvMAX(hv) * (dokeys + dovalues));
	659
463ee0b2 LW	660	PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
	661	while (entry = hv_iternext(hv)) {
	662	SPAGAIN;
	663	if (dokeys) {
	664	tmps = hv_iterkey(entry,&i); /* won't clobber stack_sp */
	665	if (!i)
	666	tmps = "";
	667	XPUSHs(sv_2mortal(newSVpv(tmps,i)));
	668	}
	669	if (dovalues) {
	670	tmpstr = NEWSV(45,0);
	671	PUTBACK;
	672	sv_setsv(tmpstr,hv_iterval(hv,entry));
	673	SPAGAIN;
	674	DEBUG_H( {
	675	sprintf(buf,"%d%%%d=%d\n",entry->hent_hash,
	676	HvMAX(hv)+1,entry->hent_hash & HvMAX(hv));
	677	sv_setpv(tmpstr,buf);
	678	} )
	679	XPUSHs(sv_2mortal(tmpstr));
	680	}
	681	PUTBACK;
	682	}
	683	return NORMAL;
	684	}
	685