/* ******************************************************************************* * * 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