/*
 * tclBinary.c --
 *
 *	This file contains the implementation of the "binary" Tcl built-in
 *	command and the Tcl binary data object.
 *
 * Copyright (c) 1997 by Sun Microsystems, Inc.
 * Copyright (c) 1998-1999 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclBinary.c,v 1.13.4.28 2009/02/04 14:16:52 dgp Exp $
 */

#include "tclInt.h"
#include "tommath.h"

#include <math.h>

 */

static void		DupByteArrayInternalRep(Tcl_Obj *srcPtr,
			    Tcl_Obj *copyPtr);
static int		FormatNumber(Tcl_Interp *interp, int type,
			    Tcl_Obj *src, unsigned char **cursorPtr);
static void		FreeByteArrayInternalRep(Tcl_Obj *objPtr);
static int		GetFormatSpec(const char **formatPtr, char *cmdPtr,
			    int *countPtr, int *flagsPtr);
static Tcl_Obj *	ScanNumber(unsigned char *buffer, int type,
			    int flags, Tcl_HashTable **numberCachePtr);
static int		SetByteArrayFromAny(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
static void		UpdateStringOfByteArray(Tcl_Obj *listPtr);
static void		DeleteScanNumberCache(Tcl_HashTable *numberCachePtr);

static int
SetByteArrayFromAny(
    Tcl_Interp *interp,		/* Not used. */
    Tcl_Obj *objPtr)		/* The object to convert to type ByteArray. */
{
    int length;
    const char *src, *srcEnd;
    unsigned char *dst;
    ByteArray *byteArrayPtr;
    Tcl_UniChar ch;

    if (objPtr->typePtr != &tclByteArrayType) {
	src = TclGetStringFromObj(objPtr, &length);
	srcEnd = src + length;

    int arg;			/* Index of next argument to consume. */
    int value = 0;		/* Current integer value to be packed.
				 * Initialized to avoid compiler warning. */
    char cmd;			/* Current format character. */
    int count;			/* Count associated with current format
				 * character. */
    int flags;			/* Format field flags */
    const char *format;	/* Pointer to current position in format
				 * string. */
    Tcl_Obj *resultPtr = NULL;	/* Object holding result buffer. */
    unsigned char *buffer;	/* Start of result buffer. */
    unsigned char *cursor;	/* Current position within result buffer. */
    unsigned char *maxPos;	/* Greatest position within result buffer that
				 * cursor has visited.*/
    const char *errorString;
    const char *errorValue, *str;
    int offset, size, length;

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "formatString ?arg ...?");
	return TCL_ERROR;
    }

    int arg;			/* Index of next argument to consume. */
    int value = 0;		/* Current integer value to be packed.
				 * Initialized to avoid compiler warning. */
    char cmd;			/* Current format character. */
    int count;			/* Count associated with current format
				 * character. */
    int flags;			/* Format field flags */
    const char *format;	/* Pointer to current position in format
				 * string. */
    Tcl_Obj *resultPtr = NULL;	/* Object holding result buffer. */
    unsigned char *buffer;	/* Start of result buffer. */
    unsigned char *cursor;	/* Current position within result buffer. */
    const char *errorString;
    const char *str;
    int offset, size, length;

    int i;
    Tcl_Obj *valuePtr, *elementPtr;
    Tcl_HashTable numberCacheHash;
    Tcl_HashTable *numberCachePtr;

 *	None.
 *
 *----------------------------------------------------------------------
 */

static int
GetFormatSpec(
    const char **formatPtr,	/* Pointer to format string. */
    char *cmdPtr,		/* Pointer to location of command char. */
    int *countPtr,		/* Pointer to repeat count value. */
    int *flagsPtr)		/* Pointer to field flags */
{
    /*
     * Skip any leading blanks.
     */

	(*formatPtr)++;
	*flagsPtr |= BINARY_UNSIGNED;
    }
    if (**formatPtr == '*') {
	(*formatPtr)++;
	*countPtr = BINARY_ALL;
    } else if (isdigit(UCHAR(**formatPtr))) { /* INTL: digit */
	*countPtr = strtoul(*formatPtr, (char **) formatPtr, 10);
    } else {
	*countPtr = BINARY_NOCOUNT;
    }
    return 1;
}

/*