Tcl Source Code

				 * array of bytes in the ByteArray object. */
{
    ByteArray *baPtr;

    if ((objPtr->typePtr != &properByteArrayType)
	    && (objPtr->typePtr != &tclByteArrayType)) {
	if (TCL_ERROR == SetByteArrayFromAny(NULL, objPtr)) {
	    if (lengthPtr != NULL) {
		*lengthPtr = 0;
	    }
	    return NULL;
	}
    }
    baPtr = GET_BYTEARRAY(objPtr);

    if (lengthPtr != NULL) {
	*lengthPtr = baPtr->used;

    Tcl_HashTable numberCacheHash;
    Tcl_HashTable *numberCachePtr;

    if (objc < 3) {
	Tcl_WrongNumArgs(interp, 1, objv,
		"value formatString ?varName ...?");
	return TCL_ERROR;
    }
    buffer = Tcl_GetByteArrayFromObj(objv[1], &length);
    if (buffer == NULL) {
	Tcl_AppendResult(interp, "binary scan expects bytes", NULL);
	return TCL_ERROR;
    }
    numberCachePtr = &numberCacheHash;
    Tcl_InitHashTable(numberCachePtr, TCL_ONE_WORD_KEYS);

    format = TclGetString(objv[2]);
    arg = 3;
    offset = 0;
    while (*format != '\0') {
	str = format;
	flags = 0;
	if (!GetFormatSpec(&format, &cmd, &count, &flags)) {

    int offset = 0, count = 0;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "data");
	return TCL_ERROR;
    }


    data = Tcl_GetByteArrayFromObj(objv[1], &count);
    if (data == NULL) {
	Tcl_AppendResult(interp, "binary encode expects bytes", NULL);
	return TCL_ERROR;
    }

    TclNewObj(resultObj);
    cursor = Tcl_SetByteArrayLength(resultObj, count * 2);
    for (offset = 0; offset < count; ++offset) {
	*cursor++ = HexDigits[((data[offset] >> 4) & 0x0f)];
	*cursor++ = HexDigits[(data[offset] & 0x0f)];
    }
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;

	    if (wrapcharlen == 0) {
		maxlen = 0;
	    }
	    break;
	}
    }


    data = Tcl_GetByteArrayFromObj(objv[objc-1], &count);
    if (data == NULL) {
	Tcl_AppendResult(interp, "binary encode expects bytes", NULL);
	return TCL_ERROR;
    }
    resultObj = Tcl_NewObj();
    if (count > 0) {
	size = (((count * 4) / 3) + 3) & ~3; /* ensure 4 byte chunks */
	if (maxlen > 0 && size > maxlen) {
	    int adjusted = size + (wrapcharlen * (size / maxlen));

	    if (size % maxlen == 0) {
		adjusted -= wrapcharlen;

		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
			"LINE_LENGTH", NULL);
		return TCL_ERROR;
	    }
	    break;
	case OPT_WRAPCHAR:
	    wrapchar = Tcl_GetByteArrayFromObj(objv[i+1], &wrapcharlen);
	    if (wrapchar == NULL) {
		Tcl_AppendResult(interp,
			"binary encode -wrapchar expects bytes", NULL);
		return TCL_ERROR;
	    }
	    break;
	}
    }

    /*
     * Allocate the buffer. This is a little bit too long, but is "good
     * enough".
     */

    resultObj = Tcl_NewObj();
    offset = 0;
    data = Tcl_GetByteArrayFromObj(objv[objc-1], &count);
    if (data == NULL) {
	Tcl_AppendResult(interp, "binary encode expects bytes", NULL);
	return TCL_ERROR;
    }
    rawLength = (lineLength - 1) * 3 / 4;
    start = cursor = Tcl_SetByteArrayLength(resultObj,
	    (lineLength + wrapcharlen) *
	    ((count + (rawLength - 1)) / rawLength));
    n = bits = 0;

    /*

	if ((enum options) index == ENC_CONVERTFROM) {
	    /*
	     * Treat the string as binary data.
	     */

	    stringPtr = (char *) Tcl_GetByteArrayFromObj(data, &length);
	    if (stringPtr == NULL) {
		Tcl_AppendResult(interp, "encoding conversion expects bytes",
			NULL);
		Tcl_FreeEncoding(encoding);
		return TCL_ERROR;
	    }
	    Tcl_ExternalToUtfDString(encoding, stringPtr, length, &ds);

	    /*
	     * Note that we cannot use Tcl_DStringResult here because it will
	     * truncate the string at the first null byte.
	     */

    const char *p;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "bytearray");
	return TCL_ERROR;
    }
    p = (const char *)Tcl_GetByteArrayFromObj(objv[1], &n);
    if (p == NULL) {
	Tcl_AppendResult(interp, "testbytestring expects bytes", NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewStringObj(p, n));
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

test utf-4.1 {Tcl_NumUtfChars: zero length} testnumutfchars {
    testnumutfchars ""
} {0}
test utf-4.2 {Tcl_NumUtfChars: length 1} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "\xC2\xA2"]
} {1}
test utf-4.3 {Tcl_NumUtfChars: long string} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e"]
} {7}
test utf-4.4 {Tcl_NumUtfChars: #u0000} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "\xC0\x80"]
} {1}
test utf-4.5 {Tcl_NumUtfChars: zero length, calc len} testnumutfchars {
    testnumutfchars "" 1
} {0}
test utf-4.6 {Tcl_NumUtfChars: length 1, calc len} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "\xC2\xA2"] 1
} {1}
test utf-4.7 {Tcl_NumUtfChars: long string, calc len} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "abc\xC2\xA2\xe4\xb9\x8e\uA2\u4e"] 1
} {7}
test utf-4.8 {Tcl_NumUtfChars: #u0000, calc len} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring "\xC0\x80"] 1
} {1}

test utf-5.1 {Tcl_UtfFindFirsts} {
} {}