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ICU-20518 update u_isbase() reference to Unicode Standard Base character

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This commit is contained in:
Markus Scherer 2019-08-30 15:59:13 -07:00
parent 973a96785e
commit e9285d9675
1 changed files with 5 additions and 6 deletions
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11
icu4c/source/common/unicode/uchar.h
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@ -3197,15 +3197,14 @@ U_STABLE UBool U_EXPORT2
u_isprint(UChar32 c);
/**
* Determines whether the specified code point is a base character.
* Non-standard: Determines whether the specified code point is a base character.
* True for general categories "L" (letters), "N" (numbers),
* "Mc" (spacing combining marks), and "Me" (enclosing marks).
*
* Note that this is different from the Unicode definition in
* chapter 3.5, conformance clause D13,
* which defines base characters to be all characters (not Cn)
* that do not graphically combine with preceding characters (M)
* and that are neither control (Cc) or format (Cf) characters.
* Note that this is different from the Unicode Standard definition in
* chapter 3.6, conformance clause D51 “Base character”,
* which defines base characters as the code points with general categories
* Letter (L), Number (N), Punctuation (P), Symbol (S), or Space Separator (Zs).
*
* @param c the code point to be tested
* @return TRUE if the code point is a base character according to this function