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-.TH ISALPHARUNE 3
-.SH NAME
-isalpharune, islowerrune, isspacerune, istitlerune, isupperrune, tolowerrune, totitlerune, toupperrune \- Unicode character classes and cases
-.SH SYNOPSIS
-.B #include <utf.h>
-.PP
-.B
-int isalpharune(Rune c)
-.PP
-.B
-int islowerrune(Rune c)
-.PP
-.B
-int isspacerune(Rune c)
-.PP
-.B
-int istitlerune(Rune c)
-.PP
-.B
-int isupperrune(Rune c)
-.PP
-.B
-Rune tolowerrune(Rune c)
-.PP
-.B
-Rune totitlerune(Rune c)
-.PP
-.B
-Rune toupperrune(Rune c)
-.SH DESCRIPTION
-These routines examine and operate on Unicode characters,
-in particular a subset of their properties as defined in the Unicode standard.
-Unicode defines some characters as alphabetic and specifies three cases:
-upper, lower, and title.
-Analogously to
-.IR ctype (3)
-for
-.SM ASCII\c
-,
-these routines
-test types and modify cases for Unicode characters.
-The names are self-explanatory.
-.PP
-The case-conversion routines return the character unchanged if it has no case.
-.SH "SEE ALSO
-.IR ctype (3) ,
-.IR "The Unicode Standard" .