/*

 *******************************************************************************

 *

 *   Copyright (C) 1999-2004, International Business Machines

 *   Corporation and others.  All Rights Reserved.

 *

 *******************************************************************************

 *   file name:  uinvchar.h

 *   encoding:   US-ASCII

 *   tab size:   8 (not used)

 *   indentation:2

 *

 *   created on: 2004sep14

 *   created by: Markus W. Scherer

 *

 *   Definitions for handling invariant characters, moved here from putil.c

 *   for better modularization.

 */

 #ifndef __UINVCHAR_H__

 #define __UINVCHAR_H__

 #include "unicode/utypes.h"

 /**

  * Check if a char string only contains invariant characters.

  * See utypes.h for details.

  *

  * @param s Input string pointer.

  * @param length Length of the string, can be -1 if NUL-terminated.

  * @return TRUE if s contains only invariant characters.

  *

  * @internal (ICU 2.8)

  */

 U_INTERNAL UBool U_EXPORT2

 uprv_isInvariantString(const char *s, int32_t length);

 /**

  * Check if a Unicode string only contains invariant characters.

  * See utypes.h for details.

  *

  * @param s Input string pointer.

  * @param length Length of the string, can be -1 if NUL-terminated.

  * @return TRUE if s contains only invariant characters.

  *

  * @internal (ICU 2.8)

  */

 U_INTERNAL UBool U_EXPORT2

 uprv_isInvariantUString(const UChar *s, int32_t length);

 /**

  * \def U_UPPER_ORDINAL

  * Get the ordinal number of an uppercase invariant character

  * @internal

  */

 #if U_CHARSET_FAMILY==U_ASCII_FAMILY

 #   define U_UPPER_ORDINAL(x) ((x)-'A')

 #elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY

 #   define U_UPPER_ORDINAL(x) (((x) < 'J') ? ((x)-'A') : \

                               (((x) < 'S') ? ((x)-'J'+9) : \

                                ((x)-'S'+18)))

 #else

 #   error Unknown charset family!

 #endif

 #endif