Tcl_UniCharIsAlpha(3) Tcl Library Procedures Tcl_UniCharIsAlpha(3) _________________________________________________________________________________________________ NAME Tcl_UniCharIsAlnum, Tcl_UniCharIsAlpha, Tcl_UniCharIsControl, Tcl_UniCharIsDigit, Tcl_UniCharIsGraph, Tcl_UniCharIsLower, Tcl_UniCharIsPrint, Tcl_UniCharIsPunct, Tcl_UniCharIsSpace, Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar - routines for classifica- tion of Tcl_UniChar characters SYNOPSIS #include <tcl.h> int Tcl_UniCharIsAlnum(ch) int Tcl_UniCharIsAlpha(ch) int Tcl_UniCharIsControl(ch) int Tcl_UniCharIsDigit(ch) int Tcl_UniCharIsGraph(ch) int Tcl_UniCharIsLower(ch) int Tcl_UniCharIsPrint(ch) int Tcl_UniCharIsPunct(ch) int Tcl_UniCharIsSpace(ch) int Tcl_UniCharIsUpper(ch) int Tcl_UniCharIsWordChar(ch) ARGUMENTS int ch (in) The Tcl_UniChar to be examined. _________________________________________________________________ DESCRIPTION All of the routines described examine Tcl_UniChars and return a boolean value. A non-zero return value means that the character does belong to the character class associated with the called routine. The rest of this document just describes the character classes associ- ated with the various routines. Note: A Tcl_UniChar is a Unicode character represented as an unsigned, fixed-size quan- tity. CHARACTER CLASSES Tcl_UniCharIsAlnum tests if the character is an alphanumeric Unicode character. Tcl_UniCharIsAlpha tests if the character is an alphabetic Unicode character. Tcl_UniCharIsControl tests if the character is a Unicode control character. Tcl_UniCharIsDigit tests if the character is a numeric Unicode character. Tcl_UniCharIsGraph tests if the character is any Unicode print character except space. Tcl_UniCharIsLower tests if the character is a lowercase Unicode character. Tcl_UniCharIsPrint tests if the character is a Unicode print character. Tcl_UniCharIsPunct tests if the character is a Unicode punctuation character. Tcl_UniCharIsSpace tests if the character is a whitespace Unicode character. Tcl_UniCharIsUpper tests if the character is an uppercase Unicode character. Tcl_UniCharIsWordChar tests if the character is alphanumeric or a connector punctuation mark. KEYWORDS unicode, classification Tcl 8.1 Tcl_UniCharIsAlpha(3)
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