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ICU-2329 add functions to check if a string contains only invariant characters

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X-SVN-Rev: 12580
This commit is contained in:
Markus Scherer 2003-07-02 17:18:38 +00:00
parent 7c3cd6b0a5
commit f9ac1f6407
1 changed files with 27 additions and 2 deletions
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29
icu4c/source/common/unicode/putil.h
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@ -238,7 +238,6 @@ U_CAPI char* U_EXPORT2 uprv_tzname(int n);
/**
* Get UTC (GMT) time measured in seconds since 0:00 on 1/1/70.
* @return the UTC time measured in seconds
* @stable ICU 2.0
* @internal
*/
U_CAPI int32_t U_EXPORT2 uprv_getUTCtime(void);
@ -368,10 +367,36 @@ u_charsToUChars(const char *cs, UChar *us, int32_t length);
U_CAPI void U_EXPORT2
u_UCharsToChars(const UChar *us, char *cs, int32_t length);
/**
* 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_CAPI 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_CAPI UBool U_EXPORT2
uprv_isInvariantUString(const UChar *s, int32_t length);
/**
* \def U_UPPER_ORDINAL
* Get the ordinal number of an uppercase invariant character
* @stable ICU 2.4
* @internal
*/
#if U_CHARSET_FAMILY==U_ASCII_FAMILY
# define U_UPPER_ORDINAL(x) ((x)-'A')