[p5sagit/p5-mst-13.2.git] / ext / Encode / Encode.xs

/*
 $Id: Encode.xs,v 1.55 2003/02/28 01:40:27 dankogai Exp $
 */

#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#define U8 U8
#include "encode.h"

# define PERLIO_MODNAME  "PerlIO::encoding"
# define PERLIO_FILENAME "PerlIO/encoding.pm"

/* set 1 or more to profile.  t/encoding.t dumps core because of
   Perl_warner and PerlIO don't work well */
#define ENCODE_XS_PROFILE 0

/* set 0 to disable floating point to calculate buffer size for
   encode_method().  1 is recommended. 2 restores NI-S original */
#define ENCODE_XS_USEFP   1

#define UNIMPLEMENTED(x,y) y x (SV *sv, char *encoding) {dTHX;   \
                         Perl_croak(aTHX_ "panic_unimplemented"); \
			 return (y)0; /* fool picky compilers */ \
                         }
/**/

UNIMPLEMENTED(_encoded_utf8_to_bytes, I32)
UNIMPLEMENTED(_encoded_bytes_to_utf8, I32)

void
Encode_XSEncoding(pTHX_ encode_t * enc)
{
    dSP;
    HV *stash = gv_stashpv("Encode::XS", TRUE);
    SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(enc))), stash);
    int i = 0;
    PUSHMARK(sp);
    XPUSHs(sv);
    while (enc->name[i]) {
	const char *name = enc->name[i++];
	XPUSHs(sv_2mortal(newSVpvn(name, strlen(name))));
    }
    PUTBACK;
    call_pv("Encode::define_encoding", G_DISCARD);
    SvREFCNT_dec(sv);
}

void
call_failure(SV * routine, U8 * done, U8 * dest, U8 * orig)
{
    /* Exists for breakpointing */
}


#define ERR_ENCODE_NOMAP "\"\\x{%04" UVxf "}\" does not map to %s"
#define ERR_DECODE_NOMAP "%s \"\\x%02" UVXf "\" does not map to Unicode"

static SV *
encode_method(pTHX_ encode_t * enc, encpage_t * dir, SV * src,
	      int check, STRLEN * offset, SV * term, int * retcode)
{
    STRLEN slen;
    U8 *s = (U8 *) SvPV(src, slen);
    STRLEN tlen  = slen;
    STRLEN ddone = 0;
    STRLEN sdone = 0;

    /* We allocate slen+1.
       PerlIO dumps core if this value is smaller than this. */
    SV *dst = sv_2mortal(newSV(slen+1));
    U8 *d = (U8 *)SvPVX(dst);
    STRLEN dlen = SvLEN(dst)-1;
    int code = 0;
    STRLEN trmlen = 0;
    U8 *trm = term ? (U8*) SvPV(term, trmlen) : NULL;

    if (offset) {
      s += *offset;
      if (slen > *offset){ /* safeguard against slen overflow */
	  slen -= *offset;
      }else{
	  slen = 0;
      }
      tlen = slen;
    }

    if (slen == 0){
	SvCUR_set(dst, 0);
	SvPOK_only(dst);
	goto ENCODE_END;
    }

    while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check,
			     trm, trmlen)) ) 
    {
	SvCUR_set(dst, dlen+ddone);
	SvPOK_only(dst);
	
	if (code == ENCODE_FALLBACK || code == ENCODE_PARTIAL ||
	    code == ENCODE_FOUND_TERM) {
	    break;
	}
	switch (code) {
	case ENCODE_NOSPACE:
	{	
	    STRLEN more = 0; /* make sure you initialize! */
	    STRLEN sleft;
	    sdone += slen;
	    ddone += dlen;
	    sleft = tlen - sdone;
#if ENCODE_XS_PROFILE >= 2
	    Perl_warn(aTHX_
		      "more=%d, sdone=%d, sleft=%d, SvLEN(dst)=%d\n",
		      more, sdone, sleft, SvLEN(dst));
#endif
	    if (sdone != 0) { /* has src ever been processed ? */
#if   ENCODE_XS_USEFP == 2
		more = (1.0*tlen*SvLEN(dst)+sdone-1)/sdone
		    - SvLEN(dst);
#elif ENCODE_XS_USEFP
		more = (STRLEN)((1.0*SvLEN(dst)+1)/sdone * sleft);
#else
		/* safe until SvLEN(dst) == MAX_INT/16 */
		more = (16*SvLEN(dst)+1)/sdone/16 * sleft;
#endif
	    }
	    more += UTF8_MAXLEN; /* insurance policy */
	    d = (U8 *) SvGROW(dst, SvLEN(dst) + more);
	    /* dst need to grow need MORE bytes! */
	    if (ddone >= SvLEN(dst)) {
		Perl_croak(aTHX_ "Destination couldn't be grown.");
	    }
	    dlen = SvLEN(dst)-ddone-1;
	    d   += ddone;
	    s   += slen;
	    slen = tlen-sdone;
	    continue;
	}
	case ENCODE_NOREP:
	    /* encoding */	
	    if (dir == enc->f_utf8) {
		STRLEN clen;
		UV ch =
		    utf8n_to_uvuni(s+slen, (SvCUR(src)-slen),
				   &clen, UTF8_ALLOW_ANY|UTF8_CHECK_ONLY);
		if (check & ENCODE_DIE_ON_ERR) {
		    Perl_croak(aTHX_ ERR_ENCODE_NOMAP,
			       (UV)ch, enc->name[0]);
		    return &PL_sv_undef; /* never reaches but be safe */
		}
		if (check & ENCODE_WARN_ON_ERR){
		    Perl_warner(aTHX_ packWARN(WARN_UTF8),
				ERR_ENCODE_NOMAP, (UV)ch, enc->name[0]);
		}
		if (check & ENCODE_RETURN_ON_ERR){
		    goto ENCODE_SET_SRC;
		}
		if (check & ENCODE_PERLQQ){
		    SV* perlqq = 
			sv_2mortal(newSVpvf("\\x{%04"UVxf"}", (UV)ch));
		    sdone += slen + clen;
		    ddone += dlen + SvCUR(perlqq);
		    sv_catsv(dst, perlqq);
		}else if (check & ENCODE_HTMLCREF){
		    SV* htmlcref = 
			sv_2mortal(newSVpvf("&#%" UVuf ";", (UV)ch));
		    sdone += slen + clen;
		    ddone += dlen + SvCUR(htmlcref);
		    sv_catsv(dst, htmlcref);
		}else if (check & ENCODE_XMLCREF){
		    SV* xmlcref = 
			sv_2mortal(newSVpvf("&#x%" UVxf ";", (UV)ch));
		    sdone += slen + clen;
		    ddone += dlen + SvCUR(xmlcref);
		    sv_catsv(dst, xmlcref);
		} else {
		    /* fallback char */
		    sdone += slen + clen;
		    ddone += dlen + enc->replen;
		    sv_catpvn(dst, (char*)enc->rep, enc->replen);
		}
	    }
	    /* decoding */
	    else {
		if (check & ENCODE_DIE_ON_ERR){
		    Perl_croak(aTHX_ ERR_DECODE_NOMAP,
                              enc->name[0], (UV)s[slen]);
		    return &PL_sv_undef; /* never reaches but be safe */
		}
		if (check & ENCODE_WARN_ON_ERR){
		    Perl_warner(
			aTHX_ packWARN(WARN_UTF8),
			ERR_DECODE_NOMAP,
               	        enc->name[0], (UV)s[slen]);
		}
		if (check & ENCODE_RETURN_ON_ERR){
		    goto ENCODE_SET_SRC;
		}
		if (check &
		    (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){
		    SV* perlqq = 
			sv_2mortal(newSVpvf("\\x%02" UVXf, (UV)s[slen]));
		    sdone += slen + 1;
		    ddone += dlen + SvCUR(perlqq);
		    sv_catsv(dst, perlqq);
		} else {
		    sdone += slen + 1;
		    ddone += dlen + strlen(FBCHAR_UTF8);
		    sv_catpv(dst, FBCHAR_UTF8);
		}
	    }
	    /* settle variables when fallback */
	    d    = (U8 *)SvEND(dst);
            dlen = SvLEN(dst) - ddone - 1;
	    s    = (U8*)SvPVX(src) + sdone;
	    slen = tlen - sdone;
	    break;

	default:
	    Perl_croak(aTHX_ "Unexpected code %d converting %s %s",
		       code, (dir == enc->f_utf8) ? "to" : "from",
		       enc->name[0]);
	    return &PL_sv_undef;
	}
    }
 ENCODE_SET_SRC:
    if (check && !(check & ENCODE_LEAVE_SRC)){
	sdone = SvCUR(src) - (slen+sdone);
	if (sdone) {
	    sv_setpvn(src, (char*)s+slen, sdone);
	}
	SvCUR_set(src, sdone);
    }
    /* warn("check = 0x%X, code = 0x%d\n", check, code); */

    SvCUR_set(dst, dlen+ddone);
    SvPOK_only(dst);

#if ENCODE_XS_PROFILE
    if (SvCUR(dst) > SvCUR(src)){
	Perl_warn(aTHX_
		  "SvLEN(dst)=%d, SvCUR(dst)=%d. %d bytes unused(%f %%)\n",
		  SvLEN(dst), SvCUR(dst), SvLEN(dst) - SvCUR(dst),
		  (SvLEN(dst) - SvCUR(dst))*1.0/SvLEN(dst)*100.0);
    }
#endif

    if (offset) 
      *offset += sdone + slen;

 ENCODE_END:
    *SvEND(dst) = '\0';
    if (retcode) *retcode = code;
    return dst;
}

MODULE = Encode		PACKAGE = Encode::utf8	PREFIX = Method_

void
Method_decode_xs(obj,src,check = 0)
SV *	obj
SV *	src
int	check
CODE:
{
    STRLEN slen;
    U8 *s = (U8 *) SvPV(src, slen);
    U8 *e = (U8 *) SvEND(src);
    SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */
    SvPOK_only(dst);
    SvCUR_set(dst,0);
    if (SvUTF8(src)) {
	s = utf8_to_bytes(s,&slen);
	if (s) {
	    SvCUR_set(src,slen);
	    SvUTF8_off(src);
	    e = s+slen;
	}
	else {
	    croak("Cannot decode string with wide characters");
	}
    }
    while (s < e) {
    	if (UTF8_IS_INVARIANT(*s) || UTF8_IS_START(*s)) {
	    U8 skip = UTF8SKIP(s);
	    if ((s + skip) > e) {
	    	/* Partial character - done */
	    	break;
	    }
	    else if (is_utf8_char(s)) {
	    	/* Whole char is good */
		sv_catpvn(dst,(char *)s,skip);
		s += skip;
		continue;
	    }
	    else {
	    	/* starts ok but isn't "good" */
	    }
	}
	else {
	    /* Invalid start byte */
	}
	/* If we get here there is something wrong with alleged UTF-8 */
	if (check & ENCODE_DIE_ON_ERR){
	    Perl_croak(aTHX_ ERR_DECODE_NOMAP, "utf8", (UV)*s);
	    XSRETURN(0);
	}
	if (check & ENCODE_WARN_ON_ERR){
	    Perl_warner(aTHX_ packWARN(WARN_UTF8),
			ERR_DECODE_NOMAP, "utf8", (UV)*s);
        }
    	if (check & ENCODE_RETURN_ON_ERR) {
		break;
    	}
        if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){
	    SV* perlqq = newSVpvf("\\x%02" UVXf, (UV)*s);
    	    sv_catsv(dst, perlqq);
	    SvREFCNT_dec(perlqq);
	} else {
	    sv_catpv(dst, FBCHAR_UTF8);
	}
	s++;
    }
    *SvEND(dst) = '\0';

    /* Clear out translated part of source unless asked not to */
    if (check && !(check & ENCODE_LEAVE_SRC)){
	slen = e-s;
	if (slen) {
	    sv_setpvn(src, (char*)s, slen);
	}
	SvCUR_set(src, slen);
    }
    SvUTF8_on(dst);
    ST(0) = sv_2mortal(dst);
    XSRETURN(1);
}

void
Method_encode_xs(obj,src,check = 0)
SV *	obj
SV *	src
int	check
CODE:
{
    STRLEN slen;
    U8 *s = (U8 *) SvPV(src, slen);
    U8 *e = (U8 *) SvEND(src);
    SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */
    if (SvUTF8(src)) {
        /* Already encoded - trust it and just copy the octets */
    	sv_setpvn(dst,(char *)s,(e-s));
	s = e;
    }
    else {
    	/* Native bytes - can always encode */
	U8 *d = (U8 *) SvGROW(dst, 2*slen+1); /* +1 or assertion will botch */
    	while (s < e) {
    	    UV uv = NATIVE_TO_UNI((UV) *s++);
            if (UNI_IS_INVARIANT(uv))
            	*d++ = (U8)UTF_TO_NATIVE(uv);
            else {
    	        *d++ = (U8)UTF8_EIGHT_BIT_HI(uv);
                *d++ = (U8)UTF8_EIGHT_BIT_LO(uv);
            }
	}
        SvCUR_set(dst, d- (U8 *)SvPVX(dst));
    	*SvEND(dst) = '\0';
    }

    /* Clear out translated part of source unless asked not to */
    if (check && !(check & ENCODE_LEAVE_SRC)){
	slen = e-s;
	if (slen) {
	    sv_setpvn(src, (char*)s, slen);
	}
	SvCUR_set(src, slen);
    }
    SvPOK_only(dst);
    SvUTF8_off(dst);
    ST(0) = sv_2mortal(dst);
    XSRETURN(1);
}

MODULE = Encode		PACKAGE = Encode::XS	PREFIX = Method_

PROTOTYPES: ENABLE

void
Method_name(obj)
SV *	obj
CODE:
{
    encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
    ST(0) = sv_2mortal(newSVpvn(enc->name[0],strlen(enc->name[0])));
    XSRETURN(1);
}

void
Method_cat_decode(obj, dst, src, off, term, check = 0)
SV *	obj
SV *	dst
SV *	src
SV *	off
SV *	term
int	check
CODE:
{
    encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
    STRLEN offset = (STRLEN)SvIV(off);
    int code = 0;
    if (SvUTF8(src)) {
    	sv_utf8_downgrade(src, FALSE);
    }
    sv_catsv(dst, encode_method(aTHX_ enc, enc->t_utf8, src, check,
				&offset, term, &code));
    SvIVX(off) = (IV)offset;
    if (code == ENCODE_FOUND_TERM) {
	ST(0) = &PL_sv_yes;
    }else{
	ST(0) = &PL_sv_no;
    }
    XSRETURN(1);
}

void
Method_decode(obj,src,check = 0)
SV *	obj
SV *	src
int	check
CODE:
{
    encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
    if (SvUTF8(src)) {
    	sv_utf8_downgrade(src, FALSE);
    }
    ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check,
			  NULL, Nullsv, NULL);
    SvUTF8_on(ST(0));
    XSRETURN(1);
}

void
Method_encode(obj,src,check = 0)
SV *	obj
SV *	src
int	check
CODE:
{
    encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
    sv_utf8_upgrade(src);
    ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check,
			  NULL, Nullsv, NULL);
    XSRETURN(1);
}

void
Method_needs_lines(obj)
SV *	obj
CODE:
{
    /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */
    ST(0) = &PL_sv_no;
    XSRETURN(1);
}

void
Method_perlio_ok(obj)
SV *	obj
CODE:
{
    /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */
    /* require_pv(PERLIO_FILENAME); */

    eval_pv("require PerlIO::encoding", 0);

    if (SvTRUE(get_sv("@", 0))) {
	ST(0) = &PL_sv_no;
    }else{
	ST(0) = &PL_sv_yes;
    }
    XSRETURN(1);
}

MODULE = Encode         PACKAGE = Encode

PROTOTYPES: ENABLE

I32
_bytes_to_utf8(sv, ...)
SV *    sv
CODE:
{
    SV * encoding = items == 2 ? ST(1) : Nullsv;

    if (encoding)
    RETVAL = _encoded_bytes_to_utf8(sv, SvPV_nolen(encoding));
    else {
	STRLEN len;
	U8*    s = (U8*)SvPV(sv, len);
	U8*    converted;

	converted = bytes_to_utf8(s, &len); /* This allocs */
	sv_setpvn(sv, (char *)converted, len);
	SvUTF8_on(sv); /* XXX Should we? */
	Safefree(converted);                /* ... so free it */
	RETVAL = len;
    }
}
OUTPUT:
    RETVAL

I32
_utf8_to_bytes(sv, ...)
SV *    sv
CODE:
{
    SV * to    = items > 1 ? ST(1) : Nullsv;
    SV * check = items > 2 ? ST(2) : Nullsv;

    if (to) {
	RETVAL = _encoded_utf8_to_bytes(sv, SvPV_nolen(to));
    } else {
	STRLEN len;
	U8 *s = (U8*)SvPV(sv, len);

	RETVAL = 0;
	if (SvTRUE(check)) {
	    /* Must do things the slow way */
	    U8 *dest;
            /* We need a copy to pass to check() */
	    U8 *src  = (U8*)savepv((char *)s);
	    U8 *send = s + len;

	    New(83, dest, len, U8); /* I think */

	    while (s < send) {
                if (*s < 0x80){
		    *dest++ = *s++;
                } else {
		    STRLEN ulen;
		    UV uv = *s++;

		    /* Have to do it all ourselves because of error routine,
		       aargh. */
		    if (!(uv & 0x40)){ goto failure; }
		    if      (!(uv & 0x20)) { ulen = 2;  uv &= 0x1f; }
		    else if (!(uv & 0x10)) { ulen = 3;  uv &= 0x0f; }
		    else if (!(uv & 0x08)) { ulen = 4;  uv &= 0x07; }
		    else if (!(uv & 0x04)) { ulen = 5;  uv &= 0x03; }
		    else if (!(uv & 0x02)) { ulen = 6;  uv &= 0x01; }
		    else if (!(uv & 0x01)) { ulen = 7;  uv = 0; }
		    else                   { ulen = 13; uv = 0; }
		
		    /* Note change to utf8.c variable naming, for variety */
		    while (ulen--) {
			if ((*s & 0xc0) != 0x80){
			    goto failure;
			} else {
			    uv = (uv << 6) | (*s++ & 0x3f);
			}
		  }
		  if (uv > 256) {
		  failure:
		      call_failure(check, s, dest, src);
		      /* Now what happens? */
		  }
		  *dest++ = (U8)uv;
		}
	    }
	} else {
	    RETVAL = (utf8_to_bytes(s, &len) ? len : 0);
	}
    }
}
OUTPUT:
    RETVAL

bool
is_utf8(sv, check = 0)
SV *	sv
int	check
CODE:
{
    if (SvGMAGICAL(sv)) /* it could be $1, for example */
	sv = newSVsv(sv); /* GMAGIG will be done */
    if (SvPOK(sv)) {
	RETVAL = SvUTF8(sv) ? TRUE : FALSE;
	if (RETVAL &&
	    check  &&
	    !is_utf8_string((U8*)SvPVX(sv), SvCUR(sv)))
	    RETVAL = FALSE;
    } else {
	RETVAL = FALSE;
    }
    if (sv != ST(0))
	SvREFCNT_dec(sv); /* it was a temp copy */
}
OUTPUT:
    RETVAL

SV *
_utf8_on(sv)
SV *	sv
CODE:
{
    if (SvPOK(sv)) {
	SV *rsv = newSViv(SvUTF8(sv));
	RETVAL = rsv;
	SvUTF8_on(sv);
    } else {
	RETVAL = &PL_sv_undef;
    }
}
OUTPUT:
    RETVAL

SV *
_utf8_off(sv)
SV *	sv
CODE:
{
    if (SvPOK(sv)) {
	SV *rsv = newSViv(SvUTF8(sv));
	RETVAL = rsv;
	SvUTF8_off(sv);
    } else {
	RETVAL = &PL_sv_undef;
    }
}
OUTPUT:
    RETVAL

int
DIE_ON_ERR()
CODE:
    RETVAL = ENCODE_DIE_ON_ERR;
OUTPUT:
    RETVAL

int
WARN_ON_ERR()
CODE:
    RETVAL = ENCODE_WARN_ON_ERR;
OUTPUT:
    RETVAL

int
LEAVE_SRC()
CODE:
    RETVAL = ENCODE_LEAVE_SRC;
OUTPUT:
    RETVAL

int
RETURN_ON_ERR()
CODE:
    RETVAL = ENCODE_RETURN_ON_ERR;
OUTPUT:
    RETVAL

int
PERLQQ()
CODE:
    RETVAL = ENCODE_PERLQQ;
OUTPUT:
    RETVAL

int
HTMLCREF()
CODE:
    RETVAL = ENCODE_HTMLCREF;
OUTPUT:
    RETVAL

int
XMLCREF()
CODE:
    RETVAL = ENCODE_XMLCREF;
OUTPUT:
    RETVAL

int
FB_DEFAULT()
CODE:
    RETVAL = ENCODE_FB_DEFAULT;
OUTPUT:
    RETVAL

int
FB_CROAK()
CODE:
    RETVAL = ENCODE_FB_CROAK;
OUTPUT:
    RETVAL

int
FB_QUIET()
CODE:
    RETVAL = ENCODE_FB_QUIET;
OUTPUT:
    RETVAL

int
FB_WARN()
CODE:
    RETVAL = ENCODE_FB_WARN;
OUTPUT:
    RETVAL

int
FB_PERLQQ()
CODE:
    RETVAL = ENCODE_FB_PERLQQ;
OUTPUT:
    RETVAL

int
FB_HTMLCREF()
CODE:
    RETVAL = ENCODE_FB_HTMLCREF;
OUTPUT:
    RETVAL

int
FB_XMLCREF()
CODE:
    RETVAL = ENCODE_FB_XMLCREF;
OUTPUT:
    RETVAL

BOOT:
{
#include "def_t.h"
#include "def_t.exh"
}
Commit	Line	Data
85982a32	1	/*
05ef2f67	2	$Id: Encode.xs,v 1.55 2003/02/28 01:40:27 dankogai Exp $
85982a32	3	*/
85982a32	4
fcf2db38	5	#define PERL_NO_GET_CONTEXT
2c674647	6	#include "EXTERN.h"
	7	#include "perl.h"
	8	#include "XSUB.h"
2f2b4ff2	9	#define U8 U8
2f2b4ff2	10	#include "encode.h"
10c5ecbb	11
10c5ecbb	12	# define PERLIO_MODNAME "PerlIO::encoding"
0ab8f81e	13	# define PERLIO_FILENAME "PerlIO/encoding.pm"
aae85ceb	14
85982a32	15	/* set 1 or more to profile. t/encoding.t dumps core because of
85982a32	16	Perl_warner and PerlIO don't work well */
c6a7db43	17	#define ENCODE_XS_PROFILE 0
39cf9a5e	18
85982a32	19	/* set 0 to disable floating point to calculate buffer size for
85982a32	20	encode_method(). 1 is recommended. 2 restores NI-S original */
c6a7db43	21	#define ENCODE_XS_USEFP 1
39cf9a5e	22
fcf2db38	23	#define UNIMPLEMENTED(x,y) y x (SV sv, char encoding) {dTHX; \
2f5768b8	24	Perl_croak(aTHX_ "panic_unimplemented"); \
4a83738a	25	return (y)0; /* fool picky compilers */ \
87714904	26	}
85982a32	27	/**/
011b2d2f	28
7e9a885a	29	UNIMPLEMENTED(_encoded_utf8_to_bytes, I32)
7e9a885a	30	UNIMPLEMENTED(_encoded_bytes_to_utf8, I32)
33af2bc7	31
b0b300a3	32	void
aa0053b7	33	Encode_XSEncoding(pTHX_ encode_t * enc)
2f2b4ff2	34	{
aa0053b7	35	dSP;
	36	HV *stash = gv_stashpv("Encode::XS", TRUE);
	37	SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(enc))), stash);
	38	int i = 0;
	39	PUSHMARK(sp);
	40	XPUSHs(sv);
	41	while (enc->name[i]) {
	42	const char *name = enc->name[i++];
	43	XPUSHs(sv_2mortal(newSVpvn(name, strlen(name))));
	44	}
	45	PUTBACK;
	46	call_pv("Encode::define_encoding", G_DISCARD);
	47	SvREFCNT_dec(sv);
2f2b4ff2	48	}
2f2b4ff2	49
aa0053b7	50	void
	51	call_failure(SV * routine, U8 * done, U8 * dest, U8 * orig)
	52	{
85982a32	53	/* Exists for breakpointing */
aa0053b7	54	}
67e989fb	55
85982a32	56
2fc614e0	57	#define ERR_ENCODE_NOMAP "\"\\x{%04" UVxf "}\" does not map to %s"
	58	#define ERR_DECODE_NOMAP "%s \"\\x%02" UVXf "\" does not map to Unicode"
	59
2f2b4ff2	60	static SV *
aa0053b7	61	encode_method(pTHX_ encode_t * enc, encpage_t * dir, SV * src,
220e2d4e	62	int check, STRLEN * offset, SV * term, int * retcode)
2f2b4ff2	63	{
aa0053b7	64	STRLEN slen;
aa0053b7	65	U8 s = (U8 ) SvPV(src, slen);
3aececda	66	STRLEN tlen = slen;
	67	STRLEN ddone = 0;
	68	STRLEN sdone = 0;
39cf9a5e	69
3c49ab08	70	/* We allocate slen+1.
85982a32	71	PerlIO dumps core if this value is smaller than this. */
3c49ab08	72	SV *dst = sv_2mortal(newSV(slen+1));
85982a32	73	U8 d = (U8 )SvPVX(dst);
85982a32	74	STRLEN dlen = SvLEN(dst)-1;
220e2d4e	75	int code = 0;
220e2d4e	76	STRLEN trmlen = 0;
cc7dbc11	77	U8 trm = term ? (U8) SvPV(term, trmlen) : NULL;
220e2d4e	78
	79	if (offset) {
	80	s += *offset;
6be7c101	81	if (slen > offset){ / safeguard against slen overflow */
	82	slen -= *offset;
	83	}else{
	84	slen = 0;
	85	}
220e2d4e	86	tlen = slen;
220e2d4e	87	}
85982a32	88
6be7c101	89	if (slen == 0){
85982a32	90	SvCUR_set(dst, 0);
	91	SvPOK_only(dst);
	92	goto ENCODE_END;
	93	}
	94
220e2d4e	95	while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check,
220e2d4e	96	trm, trmlen)) )
85982a32	97	{
	98	SvCUR_set(dst, dlen+ddone);
	99	SvPOK_only(dst);
0b3236bb	100
220e2d4e	101	if (code == ENCODE_FALLBACK \|\| code == ENCODE_PARTIAL \|\|
220e2d4e	102	code == ENCODE_FOUND_TERM) {
85982a32	103	break;
	104	}
	105	switch (code) {
	106	case ENCODE_NOSPACE:
	107	{
	108	STRLEN more = 0; /* make sure you initialize! */
	109	STRLEN sleft;
	110	sdone += slen;
	111	ddone += dlen;
	112	sleft = tlen - sdone;
fcb875d4	113	#if ENCODE_XS_PROFILE >= 2
85982a32	114	Perl_warn(aTHX_
	115	"more=%d, sdone=%d, sleft=%d, SvLEN(dst)=%d\n",
	116	more, sdone, sleft, SvLEN(dst));
fcb875d4	117	#endif
85982a32	118	if (sdone != 0) { /* has src ever been processed ? */
39cf9a5e	119	#if ENCODE_XS_USEFP == 2
85982a32	120	more = (1.0tlenSvLEN(dst)+sdone-1)/sdone
85982a32	121	- SvLEN(dst);
39cf9a5e	122	#elif ENCODE_XS_USEFP
6e21dc91	123	more = (STRLEN)((1.0SvLEN(dst)+1)/sdone sleft);
39cf9a5e	124	#else
85982a32	125	/* safe until SvLEN(dst) == MAX_INT/16 */
85982a32	126	more = (16SvLEN(dst)+1)/sdone/16 sleft;
39cf9a5e	127	#endif
39cf9a5e	128	}
85982a32	129	more += UTF8_MAXLEN; /* insurance policy */
	130	d = (U8 *) SvGROW(dst, SvLEN(dst) + more);
	131	/* dst need to grow need MORE bytes! */
	132	if (ddone >= SvLEN(dst)) {
	133	Perl_croak(aTHX_ "Destination couldn't be grown.");
	134	}
	135	dlen = SvLEN(dst)-ddone-1;
	136	d += ddone;
	137	s += slen;
	138	slen = tlen-sdone;
	139	continue;
	140	}
	141	case ENCODE_NOREP:
	142	/* encoding */
c6a7db43	143	if (dir == enc->f_utf8) {
85982a32	144	STRLEN clen;
85982a32	145	UV ch =
3e952a88	146	utf8n_to_uvuni(s+slen, (SvCUR(src)-slen),
b0b300a3	147	&clen, UTF8_ALLOW_ANY\|UTF8_CHECK_ONLY);
85982a32	148	if (check & ENCODE_DIE_ON_ERR) {
2fc614e0	149	Perl_croak(aTHX_ ERR_ENCODE_NOMAP,
2fc614e0	150	(UV)ch, enc->name[0]);
4089adc4	151	return &PL_sv_undef; /* never reaches but be safe */
	152	}
	153	if (check & ENCODE_WARN_ON_ERR){
	154	Perl_warner(aTHX_ packWARN(WARN_UTF8),
2fc614e0	155	ERR_ENCODE_NOMAP, (UV)ch, enc->name[0]);
4089adc4	156	}
	157	if (check & ENCODE_RETURN_ON_ERR){
	158	goto ENCODE_SET_SRC;
	159	}
	160	if (check & ENCODE_PERLQQ){
	161	SV* perlqq =
	162	sv_2mortal(newSVpvf("\\x{%04"UVxf"}", (UV)ch));
	163	sdone += slen + clen;
	164	ddone += dlen + SvCUR(perlqq);
	165	sv_catsv(dst, perlqq);
	166	}else if (check & ENCODE_HTMLCREF){
	167	SV* htmlcref =
	168	sv_2mortal(newSVpvf("&#%" UVuf ";", (UV)ch));
	169	sdone += slen + clen;
	170	ddone += dlen + SvCUR(htmlcref);
	171	sv_catsv(dst, htmlcref);
	172	}else if (check & ENCODE_XMLCREF){
	173	SV* xmlcref =
	174	sv_2mortal(newSVpvf("&#x%" UVxf ";", (UV)ch));
	175	sdone += slen + clen;
	176	ddone += dlen + SvCUR(xmlcref);
	177	sv_catsv(dst, xmlcref);
	178	} else {
	179	/* fallback char */
	180	sdone += slen + clen;
	181	ddone += dlen + enc->replen;
	182	sv_catpvn(dst, (char*)enc->rep, enc->replen);
c6a7db43	183	}
b2704119	184	}
85982a32	185	/* decoding */
c6a7db43	186	else {
85982a32	187	if (check & ENCODE_DIE_ON_ERR){
2fc614e0	188	Perl_croak(aTHX_ ERR_DECODE_NOMAP,
436c6dd3	189	enc->name[0], (UV)s[slen]);
4089adc4	190	return &PL_sv_undef; /* never reaches but be safe */
	191	}
	192	if (check & ENCODE_WARN_ON_ERR){
	193	Perl_warner(
	194	aTHX_ packWARN(WARN_UTF8),
2fc614e0	195	ERR_DECODE_NOMAP,
436c6dd3	196	enc->name[0], (UV)s[slen]);
4089adc4	197	}
	198	if (check & ENCODE_RETURN_ON_ERR){
	199	goto ENCODE_SET_SRC;
	200	}
	201	if (check &
	202	(ENCODE_PERLQQ\|ENCODE_HTMLCREF\|ENCODE_XMLCREF)){
	203	SV* perlqq =
	204	sv_2mortal(newSVpvf("\\x%02" UVXf, (UV)s[slen]));
	205	sdone += slen + 1;
	206	ddone += dlen + SvCUR(perlqq);
	207	sv_catsv(dst, perlqq);
	208	} else {
	209	sdone += slen + 1;
	210	ddone += dlen + strlen(FBCHAR_UTF8);
	211	sv_catpv(dst, FBCHAR_UTF8);
aa0053b7	212	}
b2704119	213	}
85982a32	214	/* settle variables when fallback */
b0b300a3	215	d = (U8 *)SvEND(dst);
b0b300a3	216	dlen = SvLEN(dst) - ddone - 1;
3e952a88	217	s = (U8*)SvPVX(src) + sdone;
b2704119	218	slen = tlen - sdone;
b2704119	219	break;
2f2b4ff2	220
85982a32	221	default:
	222	Perl_croak(aTHX_ "Unexpected code %d converting %s %s",
	223	code, (dir == enc->f_utf8) ? "to" : "from",
	224	enc->name[0]);
	225	return &PL_sv_undef;
aa0053b7	226	}
85982a32	227	}
85982a32	228	ENCODE_SET_SRC:
ca777f1c	229	if (check && !(check & ENCODE_LEAVE_SRC)){
ca777f1c	230	sdone = SvCUR(src) - (slen+sdone);
85982a32	231	if (sdone) {
85982a32	232	sv_setpvn(src, (char*)s+slen, sdone);
aa0053b7	233	}
85982a32	234	SvCUR_set(src, sdone);
2f2b4ff2	235	}
85982a32	236	/* warn("check = 0x%X, code = 0x%d\n", check, code); */
c6a7db43	237
85982a32	238	SvCUR_set(dst, dlen+ddone);
85982a32	239	SvPOK_only(dst);
c6a7db43	240
39cf9a5e	241	#if ENCODE_XS_PROFILE
39cf9a5e	242	if (SvCUR(dst) > SvCUR(src)){
85982a32	243	Perl_warn(aTHX_
	244	"SvLEN(dst)=%d, SvCUR(dst)=%d. %d bytes unused(%f %%)\n",
	245	SvLEN(dst), SvCUR(dst), SvLEN(dst) - SvCUR(dst),
	246	(SvLEN(dst) - SvCUR(dst))1.0/SvLEN(dst)100.0);
39cf9a5e	247	}
3c49ab08	248	#endif
c6a7db43	249
220e2d4e	250	if (offset)
	251	*offset += sdone + slen;
	252
85982a32	253	ENCODE_END:
0b3236bb	254	*SvEND(dst) = '\0';
220e2d4e	255	if (retcode) *retcode = code;
aa0053b7	256	return dst;
2f2b4ff2	257	}
2f2b4ff2	258
ab3374e4	259	MODULE = Encode PACKAGE = Encode::utf8 PREFIX = Method_
	260
	261	void
b536bf57	262	Method_decode_xs(obj,src,check = 0)
ab3374e4	263	SV * obj
	264	SV * src
	265	int check
	266	CODE:
	267	{
	268	STRLEN slen;
	269	U8 s = (U8 ) SvPV(src, slen);
	270	U8 e = (U8 ) SvEND(src);
b536bf57	271	SV dst = newSV(slen>0?slen:1); / newSV() abhors 0 -- inaba */
ab3374e4	272	SvPOK_only(dst);
	273	SvCUR_set(dst,0);
	274	if (SvUTF8(src)) {
	275	s = utf8_to_bytes(s,&slen);
	276	if (s) {
	277	SvCUR_set(src,slen);
	278	SvUTF8_off(src);
	279	e = s+slen;
	280	}
	281	else {
	282	croak("Cannot decode string with wide characters");
	283	}
	284	}
	285	while (s < e) {
	286	if (UTF8_IS_INVARIANT(s) \|\| UTF8_IS_START(s)) {
	287	U8 skip = UTF8SKIP(s);
	288	if ((s + skip) > e) {
	289	/* Partial character - done */
	290	break;
	291	}
	292	else if (is_utf8_char(s)) {
	293	/* Whole char is good */
	294	sv_catpvn(dst,(char *)s,skip);
	295	s += skip;
	296	continue;
	297	}
	298	else {
	299	/* starts ok but isn't "good" */
	300	}
	301	}
	302	else {
	303	/* Invalid start byte */
	304	}
	305	/* If we get here there is something wrong with alleged UTF-8 */
	306	if (check & ENCODE_DIE_ON_ERR){
	307	Perl_croak(aTHX_ ERR_DECODE_NOMAP, "utf8", (UV)*s);
	308	XSRETURN(0);
	309	}
	310	if (check & ENCODE_WARN_ON_ERR){
	311	Perl_warner(aTHX_ packWARN(WARN_UTF8),
	312	ERR_DECODE_NOMAP, "utf8", (UV)*s);
	313	}
	314	if (check & ENCODE_RETURN_ON_ERR) {
	315	break;
	316	}
	317	if (check & (ENCODE_PERLQQ\|ENCODE_HTMLCREF\|ENCODE_XMLCREF)){
	318	SV* perlqq = newSVpvf("\\x%02" UVXf, (UV)*s);
	319	sv_catsv(dst, perlqq);
	320	SvREFCNT_dec(perlqq);
	321	} else {
	322	sv_catpv(dst, FBCHAR_UTF8);
	323	}
	324	s++;
	325	}
	326	*SvEND(dst) = '\0';
	327
	328	/* Clear out translated part of source unless asked not to */
	329	if (check && !(check & ENCODE_LEAVE_SRC)){
	330	slen = e-s;
	331	if (slen) {
	332	sv_setpvn(src, (char*)s, slen);
	333	}
	334	SvCUR_set(src, slen);
	335	}
336	SvUTF8_on(dst);
337	ST(0) = sv_2mortal(dst);
338	XSRETURN(1);
339	}
340
341	void
b536bf57	342	Method_encode_xs(obj,src,check = 0)
ab3374e4	343	SV * obj
	344	SV * src
	345	int check
	346	CODE:
	347	{
	348	STRLEN slen;
	349	U8 s = (U8 ) SvPV(src, slen);
	350	U8 e = (U8 ) SvEND(src);
b536bf57	351	SV dst = newSV(slen>0?slen:1); / newSV() abhors 0 -- inaba */
ab3374e4	352	if (SvUTF8(src)) {
	353	/* Already encoded - trust it and just copy the octets */
	354	sv_setpvn(dst,(char *)s,(e-s));
	355	s = e;
	356	}
	357	else {
	358	/* Native bytes - can always encode */
b536bf57	359	U8 d = (U8 ) SvGROW(dst, 2slen+1); / +1 or assertion will botch */
ab3374e4	360	while (s < e) {
	361	UV uv = NATIVE_TO_UNI((UV) *s++);
	362	if (UNI_IS_INVARIANT(uv))
	363	*d++ = (U8)UTF_TO_NATIVE(uv);
	364	else {
	365	*d++ = (U8)UTF8_EIGHT_BIT_HI(uv);
	366	*d++ = (U8)UTF8_EIGHT_BIT_LO(uv);
	367	}
	368	}
	369	SvCUR_set(dst, d- (U8 *)SvPVX(dst));
	370	*SvEND(dst) = '\0';
	371	}
	372
	373	/* Clear out translated part of source unless asked not to */
	374	if (check && !(check & ENCODE_LEAVE_SRC)){
	375	slen = e-s;
	376	if (slen) {
	377	sv_setpvn(src, (char*)s, slen);
	378	}
	379	SvCUR_set(src, slen);
	380	}
	381	SvPOK_only(dst);
	382	SvUTF8_off(dst);
	383	ST(0) = sv_2mortal(dst);
	384	XSRETURN(1);
	385	}
	386
50d26985	387	MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_
2f2b4ff2	388
	389	PROTOTYPES: ENABLE
	390
	391	void
0a95303c	392	Method_name(obj)
	393	SV * obj
	394	CODE:
85982a32	395	{
	396	encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj)));
	397	ST(0) = sv_2mortal(newSVpvn(enc->name[0],strlen(enc->name[0])));
	398	XSRETURN(1);
	399	}
0a95303c	400
0a95303c	401	void
220e2d4e	402	Method_cat_decode(obj, dst, src, off, term, check = 0)
	403	SV * obj
	404	SV * dst
	405	SV * src
	406	SV * off
	407	SV * term
	408	int check
	409	CODE:
	410	{
	411	encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj)));
	412	STRLEN offset = (STRLEN)SvIV(off);
	413	int code = 0;
	414	if (SvUTF8(src)) {
	415	sv_utf8_downgrade(src, FALSE);
	416	}
	417	sv_catsv(dst, encode_method(aTHX_ enc, enc->t_utf8, src, check,
	418	&offset, term, &code));
	419	SvIVX(off) = (IV)offset;
	420	if (code == ENCODE_FOUND_TERM) {
	421	ST(0) = &PL_sv_yes;
	422	}else{
	423	ST(0) = &PL_sv_no;
	424	}
	425	XSRETURN(1);
	426	}
	427
	428	void
b2704119	429	Method_decode(obj,src,check = 0)
2f2b4ff2	430	SV * obj
2f2b4ff2	431	SV * src
b2704119	432	int check
2f2b4ff2	433	CODE:
aae85ceb	434	{
85982a32	435	encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj)));
ab3374e4	436	if (SvUTF8(src)) {
	437	sv_utf8_downgrade(src, FALSE);
	438	}
220e2d4e	439	ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check,
220e2d4e	440	NULL, Nullsv, NULL);
85982a32	441	SvUTF8_on(ST(0));
aae85ceb	442	XSRETURN(1);
	443	}
	444
	445	void
85982a32	446	Method_encode(obj,src,check = 0)
aae85ceb	447	SV * obj
85982a32	448	SV * src
85982a32	449	int check
aae85ceb	450	CODE:
aae85ceb	451	{
85982a32	452	encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj)));
85982a32	453	sv_utf8_upgrade(src);
220e2d4e	454	ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check,
220e2d4e	455	NULL, Nullsv, NULL);
aae85ceb	456	XSRETURN(1);
	457	}
	458
0ab8f81e	459	void
	460	Method_needs_lines(obj)
	461	SV * obj
	462	CODE:
	463	{
b32afa7c	464	/* encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj))); */
0ab8f81e	465	ST(0) = &PL_sv_no;
	466	XSRETURN(1);
	467	}
	468
	469	void
	470	Method_perlio_ok(obj)
	471	SV * obj
	472	CODE:
	473	{
b32afa7c	474	/* encode_t enc = INT2PTR(encode_t , SvIV(SvRV(obj))); */
10c5ecbb	475	/* require_pv(PERLIO_FILENAME); */
	476
	477	eval_pv("require PerlIO::encoding", 0);
	478
	479	if (SvTRUE(get_sv("@", 0))) {
0ab8f81e	480	ST(0) = &PL_sv_no;
10c5ecbb	481	}else{
10c5ecbb	482	ST(0) = &PL_sv_yes;
0ab8f81e	483	}
	484	XSRETURN(1);
	485	}
	486
67e989fb	487	MODULE = Encode PACKAGE = Encode
2c674647	488
	489	PROTOTYPES: ENABLE
	490
67e989fb	491	I32
2c674647	492	_bytes_to_utf8(sv, ...)
85982a32	493	SV * sv
	494	CODE:
	495	{
	496	SV * encoding = items == 2 ? ST(1) : Nullsv;
c6a7db43	497
85982a32	498	if (encoding)
	499	RETVAL = _encoded_bytes_to_utf8(sv, SvPV_nolen(encoding));
	500	else {
	501	STRLEN len;
	502	U8* s = (U8*)SvPV(sv, len);
	503	U8* converted;
	504
	505	converted = bytes_to_utf8(s, &len); /* This allocs */
	506	sv_setpvn(sv, (char *)converted, len);
	507	SvUTF8_on(sv); /* XXX Should we? */
	508	Safefree(converted); /* ... so free it */
	509	RETVAL = len;
	510	}
	511	}
	512	OUTPUT:
	513	RETVAL
2c674647	514
67e989fb	515	I32
2c674647	516	_utf8_to_bytes(sv, ...)
85982a32	517	SV * sv
	518	CODE:
	519	{
	520	SV * to = items > 1 ? ST(1) : Nullsv;
	521	SV * check = items > 2 ? ST(2) : Nullsv;
	522
	523	if (to) {
	524	RETVAL = _encoded_utf8_to_bytes(sv, SvPV_nolen(to));
	525	} else {
	526	STRLEN len;
	527	U8 s = (U8)SvPV(sv, len);
	528
	529	RETVAL = 0;
	530	if (SvTRUE(check)) {
	531	/* Must do things the slow way */
	532	U8 *dest;
	533	/* We need a copy to pass to check() */
c6a7db43	534	U8 src = (U8)savepv((char *)s);
85982a32	535	U8 *send = s + len;
	536
	537	New(83, dest, len, U8); /* I think */
	538
	539	while (s < send) {
	540	if (*s < 0x80){
	541	dest++ = s++;
	542	} else {
	543	STRLEN ulen;
	544	UV uv = *s++;
	545
	546	/* Have to do it all ourselves because of error routine,
	547	aargh. */
	548	if (!(uv & 0x40)){ goto failure; }
	549	if (!(uv & 0x20)) { ulen = 2; uv &= 0x1f; }
	550	else if (!(uv & 0x10)) { ulen = 3; uv &= 0x0f; }
	551	else if (!(uv & 0x08)) { ulen = 4; uv &= 0x07; }
	552	else if (!(uv & 0x04)) { ulen = 5; uv &= 0x03; }
	553	else if (!(uv & 0x02)) { ulen = 6; uv &= 0x01; }
	554	else if (!(uv & 0x01)) { ulen = 7; uv = 0; }
	555	else { ulen = 13; uv = 0; }
87714904	556
85982a32	557	/* Note change to utf8.c variable naming, for variety */
85982a32	558	while (ulen--) {
c6a7db43	559	if ((*s & 0xc0) != 0x80){
c6a7db43	560	goto failure;
85982a32	561	} else {
	562	uv = (uv << 6) \| (*s++ & 0x3f);
	563	}
87714904	564	}
67e989fb	565	if (uv > 256) {
67e989fb	566	failure:
85982a32	567	call_failure(check, s, dest, src);
85982a32	568	/* Now what happens? */
67e989fb	569	}
67e989fb	570	*dest++ = (U8)uv;
85982a32	571	}
	572	}
	573	} else {
	574	RETVAL = (utf8_to_bytes(s, &len) ? len : 0);
2c674647	575	}
85982a32	576	}
	577	}
	578	OUTPUT:
	579	RETVAL
2c674647	580
2c674647	581	bool
b2704119	582	is_utf8(sv, check = 0)
4411f3b6	583	SV * sv
b2704119	584	int check
85982a32	585	CODE:
	586	{
	587	if (SvGMAGICAL(sv)) /* it could be $1, for example */
	588	sv = newSVsv(sv); /* GMAGIG will be done */
	589	if (SvPOK(sv)) {
	590	RETVAL = SvUTF8(sv) ? TRUE : FALSE;
	591	if (RETVAL &&
	592	check &&
	593	!is_utf8_string((U8*)SvPVX(sv), SvCUR(sv)))
2c674647	594	RETVAL = FALSE;
85982a32	595	} else {
	596	RETVAL = FALSE;
	597	}
	598	if (sv != ST(0))
	599	SvREFCNT_dec(sv); /* it was a temp copy */
	600	}
	601	OUTPUT:
	602	RETVAL
2c674647	603
2c674647	604	SV *
4411f3b6	605	_utf8_on(sv)
85982a32	606	SV * sv
	607	CODE:
	608	{
	609	if (SvPOK(sv)) {
	610	SV *rsv = newSViv(SvUTF8(sv));
	611	RETVAL = rsv;
	612	SvUTF8_on(sv);
	613	} else {
	614	RETVAL = &PL_sv_undef;
	615	}
	616	}
	617	OUTPUT:
	618	RETVAL
2c674647	619
2c674647	620	SV *
4411f3b6	621	_utf8_off(sv)
85982a32	622	SV * sv
	623	CODE:
	624	{
	625	if (SvPOK(sv)) {
	626	SV *rsv = newSViv(SvUTF8(sv));
	627	RETVAL = rsv;
	628	SvUTF8_off(sv);
	629	} else {
	630	RETVAL = &PL_sv_undef;
	631	}
	632	}
	633	OUTPUT:
	634	RETVAL
	635
85982a32	636	int
	637	DIE_ON_ERR()
	638	CODE:
	639	RETVAL = ENCODE_DIE_ON_ERR;
	640	OUTPUT:
	641	RETVAL
	642
c6a7db43	643	int
85982a32	644	WARN_ON_ERR()
	645	CODE:
	646	RETVAL = ENCODE_WARN_ON_ERR;
	647	OUTPUT:
	648	RETVAL
	649
	650	int
	651	LEAVE_SRC()
	652	CODE:
	653	RETVAL = ENCODE_LEAVE_SRC;
	654	OUTPUT:
	655	RETVAL
	656
	657	int
	658	RETURN_ON_ERR()
	659	CODE:
	660	RETVAL = ENCODE_RETURN_ON_ERR;
	661	OUTPUT:
	662	RETVAL
	663
	664	int
	665	PERLQQ()
	666	CODE:
	667	RETVAL = ENCODE_PERLQQ;
	668	OUTPUT:
	669	RETVAL
	670
	671	int
af1f55d9	672	HTMLCREF()
	673	CODE:
	674	RETVAL = ENCODE_HTMLCREF;
	675	OUTPUT:
	676	RETVAL
	677
	678	int
	679	XMLCREF()
	680	CODE:
	681	RETVAL = ENCODE_XMLCREF;
	682	OUTPUT:
	683	RETVAL
	684
	685	int
85982a32	686	FB_DEFAULT()
	687	CODE:
	688	RETVAL = ENCODE_FB_DEFAULT;
	689	OUTPUT:
	690	RETVAL
	691
	692	int
	693	FB_CROAK()
	694	CODE:
	695	RETVAL = ENCODE_FB_CROAK;
	696	OUTPUT:
	697	RETVAL
	698
	699	int
	700	FB_QUIET()
	701	CODE:
	702	RETVAL = ENCODE_FB_QUIET;
	703	OUTPUT:
	704	RETVAL
	705
	706	int
	707	FB_WARN()
	708	CODE:
	709	RETVAL = ENCODE_FB_WARN;
	710	OUTPUT:
	711	RETVAL
	712
	713	int
	714	FB_PERLQQ()
	715	CODE:
	716	RETVAL = ENCODE_FB_PERLQQ;
	717	OUTPUT:
	718	RETVAL
2c674647	719
af1f55d9	720	int
	721	FB_HTMLCREF()
	722	CODE:
	723	RETVAL = ENCODE_FB_HTMLCREF;
	724	OUTPUT:
	725	RETVAL
	726
	727	int
	728	FB_XMLCREF()
	729	CODE:
	730	RETVAL = ENCODE_FB_XMLCREF;
	731	OUTPUT:
	732	RETVAL
	733
33af2bc7	734	BOOT:
33af2bc7	735	{
85982a32	736	#include "def_t.h"
e7cbefb8	737	#include "def_t.exh"
33af2bc7	738	}