Tcl Source Code

				 * stored in the output buffer as a result of
				 * the conversion. */
    int *dstCharsPtr)		/* Filled with the number of characters that
				 * correspond to the bytes stored in the
				 * output buffer. */
{
    const char *srcStart, *srcEnd, *srcClose, *dstStart, *dstEnd;
    int result, numChars;
#if TCL_UTF_MAX <= 4
    int len;
#endif
    Tcl_UniChar ch = 0;

    srcStart = src;
    srcEnd = src + srcLen;
    srcClose = srcEnd;
    if ((flags & TCL_ENCODING_END) == 0) {
	srcClose -= TCL_UTF_MAX;

	    result = TCL_CONVERT_MULTIBYTE;
	    break;
	}
	if (dst > dstEnd) {
	    result = TCL_CONVERT_NOSPACE;
	    break;
	}
#if TCL_UTF_MAX <= 4
	src += (len = TclUtfToUniChar(src, &ch));
	if ((ch >= 0xD800) && (len < 3)) {
	    src += TclUtfToUniChar(src, &ch);
	    ch = 0xFFFD;
	}
#else
	src += TclUtfToUniChar(src, &ch);
	if (ch > 0xFFFF) {
	    ch = 0xFFFD;
	}
#endif

	/*
	 * Need to handle this in a way that won't cause misalignment by
	 * casting dst to a Tcl_UniChar. [Bug 1122671]
	 */

#ifdef WORDS_BIGENDIAN

MODULE_SCOPE int	TclTrimRight(const char *bytes, int numBytes,
			    const char *trim, int numTrim);
MODULE_SCOPE const char*TclGetCommandTypeName(Tcl_Command command);
MODULE_SCOPE void	TclRegisterCommandTypeName(
			    Tcl_ObjCmdProc *implementationProc,
			    const char *nameStr);
#if (TCL_UTF_MAX > 4) && (defined(__CYGWIN__) || defined(_WIN32))
MODULE_SCOPE int TclUtfToUtf16(const char *src, unsigned short *chPtr);
MODULE_SCOPE char *	Tcl_Utf16ToUtfDString(const unsigned short *uniStr,
			    int uniLength, Tcl_DString *dsPtr);
MODULE_SCOPE unsigned short * Tcl_UtfToUtf16DString(const char *src,
			    int length, Tcl_DString *dsPtr);
#else
#   define TclUtfToUtf16 TclUtfToUniChar
#   define Tcl_Utf16ToUtfDString Tcl_UniCharToUtfDString
#   define Tcl_UtfToUtf16DString Tcl_UtfToUniCharDString
#endif
MODULE_SCOPE int	TclUtfCmp(const char *cs, const char *ct);
MODULE_SCOPE int	TclUtfCasecmp(const char *cs, const char *ct);
MODULE_SCOPE int	TclUtfCount(int ch);
MODULE_SCOPE Tcl_Obj *	TclpNativeToNormalized(ClientData clientData);

	return NULL;
    }
    if (len < 0) {
	len = wcslen((wchar_t *)string);
    } else {
	len /= 2;
    }
    return Tcl_Utf16ToUtfDString((const unsigned short *)string, len, dsPtr);
}

#if defined(TCL_WIDE_INT_IS_LONG)
/* On Cygwin64, long is 64-bit while on Win64 long is 32-bit. Therefore
 * we have to make sure that all stub entries on Cygwin64 follow the Win64
 * signature. Tcl 9 must find a better solution, but that cannot be done
 * without introducing a binary incompatibility.

#   define TclpGmtime 0
#   define TclpLocaltime_unix 0
#   define TclpGmtime_unix 0
#   define Tcl_SetExitProc 0
#   define Tcl_SetPanicProc 0
#   define Tcl_FindExecutable 0
#   define TclOldFreeObj 0
#   define TclBN_reverse 0
#   define TclBN_fast_s_mp_mul_digs 0
#   define TclBN_fast_s_mp_sqr 0
#   define TclBN_mp_karatsuba_mul 0
#   define TclBN_mp_karatsuba_sqr 0
#   define TclBN_mp_toom_mul 0
#   define TclBN_mp_toom_sqr 0
#   define TclBN_s_mp_add 0
#   define TclBN_s_mp_mul_digs 0
#   define TclBN_s_mp_sqr 0
#   define TclBN_s_mp_sub 0
#else /* TCL_NO_DEPRECATED */
#   define Tcl_SeekOld seekOld
#   define Tcl_TellOld tellOld
#   define TclBackgroundException Tcl_BackgroundException
#   define TclSetStartupScript Tcl_SetStartupScript
#   define TclGetStartupScript Tcl_GetStartupScript
#   define TclCreateNamespace Tcl_CreateNamespace

declare 49 {
    void TclBN_mp_zero(mp_int *a)
}

# internal routines to libtommath - should not be called but must be
# exported to accommodate the "tommath" extension

declare 50 {deprecated {is private function in libtommath}} {
    void TclBN_reverse(unsigned char *s, int len)
}
declare 51 {deprecated {is private function in libtommath}} {
    int TclBN_fast_s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
}
declare 52 {deprecated {is private function in libtommath}} {
    int TclBN_fast_s_mp_sqr(const mp_int *a, mp_int *b)
}
declare 53 {deprecated {is private function in libtommath}} {
    int TclBN_mp_karatsuba_mul(const mp_int *a, const mp_int *b, mp_int *c)
}
declare 54 {deprecated {is private function in libtommath}} {
    int TclBN_mp_karatsuba_sqr(const mp_int *a, mp_int *b)
}
declare 55 {deprecated {is private function in libtommath}} {
    int TclBN_mp_toom_mul(const mp_int *a, const mp_int *b, mp_int *c)
}
declare 56 {deprecated {is private function in libtommath}} {
    int TclBN_mp_toom_sqr(const mp_int *a, mp_int *b)
}
declare 57 {deprecated {is private function in libtommath}} {
    int TclBN_s_mp_add(const mp_int *a, const mp_int *b, mp_int *c)
}
declare 58 {deprecated {is private function in libtommath}} {
    int TclBN_s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
}
declare 59 {deprecated {is private function in libtommath}} {
    int TclBN_s_mp_sqr(const mp_int *a, mp_int *b)
}
declare 60 {deprecated {is private function in libtommath}} {
    int TclBN_s_mp_sub(const mp_int *a, const mp_int *b, mp_int *c)
}
declare 61 {
    int TclBN_mp_init_set_int(mp_int *a, unsigned long i)
}
declare 62 {
    int TclBN_mp_set_int(mp_int *a, unsigned long i)

EXTERN int		TclBN_mp_unsigned_bin_size(const mp_int *a);
/* 48 */
EXTERN int		TclBN_mp_xor(const mp_int *a, const mp_int *b,
				mp_int *c);
/* 49 */
EXTERN void		TclBN_mp_zero(mp_int *a);
/* 50 */
TCL_DEPRECATED("is private function in libtommath")
void			TclBN_reverse(unsigned char *s, int len);
/* 51 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_fast_s_mp_mul_digs(const mp_int *a,
				const mp_int *b, mp_int *c, int digs);
/* 52 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_fast_s_mp_sqr(const mp_int *a, mp_int *b);
/* 53 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_mp_karatsuba_mul(const mp_int *a,
				const mp_int *b, mp_int *c);
/* 54 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_mp_karatsuba_sqr(const mp_int *a, mp_int *b);
/* 55 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_mp_toom_mul(const mp_int *a, const mp_int *b,
				mp_int *c);
/* 56 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_mp_toom_sqr(const mp_int *a, mp_int *b);
/* 57 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_s_mp_add(const mp_int *a, const mp_int *b,
				mp_int *c);
/* 58 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_s_mp_mul_digs(const mp_int *a, const mp_int *b,
				mp_int *c, int digs);
/* 59 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_s_mp_sqr(const mp_int *a, mp_int *b);
/* 60 */
TCL_DEPRECATED("is private function in libtommath")
int			TclBN_s_mp_sub(const mp_int *a, const mp_int *b,
				mp_int *c);
/* 61 */
EXTERN int		TclBN_mp_init_set_int(mp_int *a, unsigned long i);
/* 62 */
EXTERN int		TclBN_mp_set_int(mp_int *a, unsigned long i);
/* 63 */
EXTERN int		TclBN_mp_cnt_lsb(const mp_int *a);

    int (*tclBN_mp_sub_d) (const mp_int *a, mp_digit b, mp_int *c); /* 43 */
    int (*tclBN_mp_to_unsigned_bin) (const mp_int *a, unsigned char *b); /* 44 */
    int (*tclBN_mp_to_unsigned_bin_n) (const mp_int *a, unsigned char *b, unsigned long *outlen); /* 45 */
    int (*tclBN_mp_toradix_n) (const mp_int *a, char *str, int radix, int maxlen); /* 46 */
    int (*tclBN_mp_unsigned_bin_size) (const mp_int *a); /* 47 */
    int (*tclBN_mp_xor) (const mp_int *a, const mp_int *b, mp_int *c); /* 48 */
    void (*tclBN_mp_zero) (mp_int *a); /* 49 */
    TCL_DEPRECATED_API("is private function in libtommath") void (*tclBN_reverse) (unsigned char *s, int len); /* 50 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_fast_s_mp_mul_digs) (const mp_int *a, const mp_int *b, mp_int *c, int digs); /* 51 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_fast_s_mp_sqr) (const mp_int *a, mp_int *b); /* 52 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_mp_karatsuba_mul) (const mp_int *a, const mp_int *b, mp_int *c); /* 53 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_mp_karatsuba_sqr) (const mp_int *a, mp_int *b); /* 54 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_mp_toom_mul) (const mp_int *a, const mp_int *b, mp_int *c); /* 55 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_mp_toom_sqr) (const mp_int *a, mp_int *b); /* 56 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_s_mp_add) (const mp_int *a, const mp_int *b, mp_int *c); /* 57 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_s_mp_mul_digs) (const mp_int *a, const mp_int *b, mp_int *c, int digs); /* 58 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_s_mp_sqr) (const mp_int *a, mp_int *b); /* 59 */
    TCL_DEPRECATED_API("is private function in libtommath") int (*tclBN_s_mp_sub) (const mp_int *a, const mp_int *b, mp_int *c); /* 60 */
    int (*tclBN_mp_init_set_int) (mp_int *a, unsigned long i); /* 61 */
    int (*tclBN_mp_set_int) (mp_int *a, unsigned long i); /* 62 */
    int (*tclBN_mp_cnt_lsb) (const mp_int *a); /* 63 */
    TCL_DEPRECATED_API("Use mp_init() + mp_set_long_long()") void (*tclBNInitBignumFromLong) (mp_int *bignum, long initVal); /* 64 */
    TCL_DEPRECATED_API("Use mp_init() + mp_set_long_long()") void (*tclBNInitBignumFromWideInt) (mp_int *bignum, Tcl_WideInt initVal); /* 65 */
    TCL_DEPRECATED_API("Use mp_init() + mp_set_long_long()") void (*tclBNInitBignumFromWideUInt) (mp_int *bignum, Tcl_WideUInt initVal); /* 66 */
    int (*tclBN_mp_expt_d_ex) (const mp_int *a, mp_digit b, mp_int *c, int fast); /* 67 */

    return string;
}

#if (TCL_UTF_MAX > 4) && (defined(__CYGWIN__) || defined(_WIN32))
char *
Tcl_Utf16ToUtfDString(
    const unsigned short *uniStr,	/* Utf-16 string to convert to UTF-8. */
    int uniLength,		/* Length of Utf-16 string (must be >= 0). */

    Tcl_DString *dsPtr)		/* UTF-8 representation of string is appended
				 * to this previously initialized DString. */
{
    const unsigned short *w, *wEnd;
    char *p, *string;
    int oldLength, len = 1;

		/* produce high surrogate, advance source pointer */
		*chPtr = 0xD800 + high;
		return 1;
	    }
#else
	    *chPtr = (((byte & 0x07) << 18) | ((src[1] & 0x3F) << 12)
		    | ((src[2] & 0x3F) << 6) | (src[3] & 0x3F));
	    if (((unsigned)(*chPtr) - 0x10000) <= 0xFFFFF) {
		return 4;
	    }
#endif
	}

	/*
	 * A four-byte-character lead-byte not followed by two trail-bytes
	 * represents itself.
	 */
    }

    *chPtr = byte;
    return 1;
}

#if (TCL_UTF_MAX > 4) && (defined(__CYGWIN__) || defined(_WIN32))
int
TclUtfToUtf16(
    const char *src,	/* The UTF-8 string. */
    unsigned short *chPtr)/* Filled with the Utf-16 representation of
				 * the UTF-8 string. */
{
    unsigned short byte;

    /*
     * Unroll 1 to 4 byte UTF-8 sequences.
     */

    byte = *((unsigned char *) src);
    if (byte < 0xC0) {

	 */
    }
    else if (byte < 0xF8) {
	if (((src[1] & 0xC0) == 0x80) && ((src[2] & 0xC0) == 0x80) && ((src[3] & 0xC0) == 0x80)) {
	    /*
	     * Four-byte-character lead byte followed by three trail bytes.
	     */
	    unsigned short high = (((byte & 0x07) << 8) | ((src[1] & 0x3F) << 2)
		    | ((src[2] & 0x3F) >> 4)) - 0x40;
	    if (high >= 0x400) {
		/* out of range, < 0x10000 or > 0x10ffff */
	    } else {
		/* produce high surrogate, advance source pointer */
		*chPtr = 0xD800 + high;
		return 1;

    const char *src,		/* UTF-8 string to convert to Unicode. */
    int length,			/* Length of UTF-8 string in bytes, or -1 for
				 * strlen(). */
    Tcl_DString *dsPtr)		/* Unicode representation of string is
				 * appended to this previously initialized
				 * DString. */
{
    unsigned short ch = 0, *w, *wString;
    const char *p, *end;
    int oldLength;

    if (length < 0) {
	length = strlen(src);
    }

    /*
     * Unicode string length in Tcl_UniChars will be <= UTF-8 string length in
     * bytes.
     */

    oldLength = Tcl_DStringLength(dsPtr);

    Tcl_DStringSetLength(dsPtr,
	    oldLength + (int) ((length + 1) * sizeof(unsigned short)));
    wString = (unsigned short *) (Tcl_DStringValue(dsPtr) + oldLength);

    w = wString;
    p = src;
    end = src + length - 4;
    while (p < end) {
	p += TclUtfToUtf16(p, &ch);
	*w++ = ch;
    }
    end += 4;
    while (p < end) {
	if (Tcl_UtfCharComplete(p, end-p)) {
	    p += TclUtfToUtf16(p, &ch);
	} else if (((UCHAR(*p)-0x80)) < 0x20) {
	    ch = cp1252[UCHAR(*p++)-0x80];
	} else {
	    ch = UCHAR(*p++);
	}
	*w++ = ch;
    }