Tcl Source Code

number if the first character is not a sign.
.TP 10
\fB0\fR
Specifies that the number should be padded on the left with
zeroes instead of spaces.
.TP 10
\fB#\fR
Requests an alternate output form. For \fBo\fR conversions, \fB0o\fR
will be added to the beginning of the result unless it is zero.
For \fBx\fR or \fBX\fR conversions, \fB0x\fR
will be added to the beginning of the result unless it is zero.
For \fBb\fR conversions, \fB0b\fR
will be added to the beginning of the result unless it is zero.
For \fBd\fR conversions, \fB0d\fR there is no effect unless
the \fB0\fR specifier is used as well: In that case, \fB0d\fR
will be added to the beginning.
For all floating-point conversions (\fBe\fR, \fBE\fR, \fBf\fR,
\fBg\fR, and \fBG\fR) it guarantees that the result always
has a decimal point.
For \fBg\fR and \fBG\fR conversions it specifies that
trailing zeroes should not be removed.
.SS "OPTIONAL FIELD WIDTH"
.PP

precision, then convert number as for \fB%e\fR or
\fB%E\fR.
Otherwise convert as for \fB%f\fR.
Trailing zeroes and a trailing decimal point are omitted.
.TP 10
\fB%\fR
No conversion: just insert \fB%\fR.
.TP 10
\fBp\fR
Shorthand form for \fB0x%zx\fR, so it outputs the integer in
hexadecimal form with \fB0x\fR prefix.
.SH "DIFFERENCES FROM ANSI SPRINTF"
.PP
The behavior of the format command is the same as the
ANSI C \fBsprintf\fR procedure except for the following
differences:
.IP [1]
Tcl guarantees that it will be working with UNICODE characters.
.IP [2]
\fB%n\fR specifier is not supported.
.IP [3]
For \fB%c\fR conversions the argument must be an integer value,
which will then be converted to the corresponding character value.
.IP [4]
The size modifiers are ignored when formatting floating-point values.

The \fBb\fR specifier has no \fBsprintf\fR counterpart.
.SH EXAMPLES
.PP
Convert the numeric value of a UNICODE character to the character
itself:
.PP
.CS

    int count)			/* Number of tokens to consider at tokenPtr.
				 * Must be at least 1. */
{
    return TclSubstTokens(interp, tokenPtr, count, /* numLeftPtr */ NULL, 1,
	    NULL, NULL);
}

#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9
/*
 *----------------------------------------------------------------------
 *
 * Tcl_EvalTokens --
 *
 *	Given an array of tokens parsed from a Tcl command (e.g., the tokens
 *	that make up a word or the index for an array variable) this function

	return NULL;
    }
    resPtr = Tcl_GetObjResult(interp);
    Tcl_IncrRefCount(resPtr);
    Tcl_ResetResult(interp);
    return resPtr;
}
#endif /* !TCL_NO_DEPRECATED */

/*
 *----------------------------------------------------------------------
 *
 * Tcl_EvalEx, TclEvalEx --
 *
 *	This function evaluates a Tcl script without using the compiler or

/*
 * The structures below defines the Tcl object types defined in this file by
 * means of functions that can be invoked by generic object code. See also
 * tclStringObj.c, tclListObj.c, tclByteCode.c for other type manager
 * implementations.
 */

#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9
static const Tcl_ObjType oldBooleanType = {
    "boolean",			/* name */
    NULL,			/* freeIntRepProc */
    NULL,			/* dupIntRepProc */
    NULL,			/* updateStringProc */
    TclSetBooleanFromAny		/* setFromAnyProc */
};
#endif
const Tcl_ObjType tclBooleanType = {
#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9
    "booleanString",		/* name */
#else
    "boolean",			/* name */
#endif
    NULL,			/* freeIntRepProc */
    NULL,			/* dupIntRepProc */
    NULL,			/* updateStringProc */
    TclSetBooleanFromAny		/* setFromAnyProc */
};
const Tcl_ObjType tclDoubleType = {
    "double",			/* name */

    Tcl_RegisterObjType(&tclDictType);
    Tcl_RegisterObjType(&tclByteCodeType);
    Tcl_RegisterObjType(&tclCmdNameType);
    Tcl_RegisterObjType(&tclRegexpType);
    Tcl_RegisterObjType(&tclProcBodyType);

    /* For backward compatibility only ... */
#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9
    Tcl_RegisterObjType(&oldBooleanType);
#endif
#ifndef TCL_WIDE_INT_IS_LONG
    Tcl_RegisterObjType(&tclWideIntType);
#endif

#ifdef TCL_COMPILE_STATS
    Tcl_MutexLock(&tclObjMutex);
    tclObjsAlloced = 0;

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
    return result;
}

#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9
/*
 *----------------------------------------------------------------------
 *
 * Tcl_Backslash --
 *
 *	Figure out how to handle a backslash sequence.
 *

    char buf[TCL_UTF_MAX];
    Tcl_UniChar ch = 0;

    Tcl_UtfBackslash(src, readPtr, buf);
    TclUtfToUniChar(buf, &ch);
    return (char) ch;
}
#endif /* !TCL_NO_DEPRECATED */

/*
 *----------------------------------------------------------------------
 *
 * TclTrimRight --
 *
 *	Takes two counted strings in the Tcl encoding which must both be null