tisalpharune.3 - plan9port - [fork] Plan 9 from user space
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       tisalpharune.3 (1049B)
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            1 .TH ISALPHARUNE 3
            2 .SH NAME
            3 isalpharune, islowerrune, isspacerune, istitlerune, isupperrune, tolowerrune, totitlerune, toupperrune \- Unicode character classes and cases
            4 .SH SYNOPSIS
            5 .B #include <utf.h>
            6 .PP
            7 .B
            8 int isalpharune(Rune c)
            9 .PP
           10 .B
           11 int islowerrune(Rune c)
           12 .PP
           13 .B
           14 int isspacerune(Rune c)
           15 .PP
           16 .B
           17 int istitlerune(Rune c)
           18 .PP
           19 .B
           20 int isupperrune(Rune c)
           21 .PP
           22 .B
           23 Rune tolowerrune(Rune c)
           24 .PP
           25 .B
           26 Rune totitlerune(Rune c)
           27 .PP
           28 .B
           29 Rune toupperrune(Rune c)
           30 .SH DESCRIPTION
           31 These routines examine and operate on Unicode characters,
           32 in particular a subset of their properties as defined in the Unicode standard.
           33 Unicode defines some characters as alphabetic and specifies three cases:
           34 upper, lower, and title.
           35 Analogously to
           36 .IR isalpha (3)
           37 for
           38 .SM ASCII\c
           39 ,
           40 these routines
           41 test types and modify cases for Unicode characters.
           42 The names are self-explanatory.
           43 .PP
           44 The case-conversion routines return the character unchanged if it has no case.
           45 .SH SOURCE
           46 .B https://9fans.github.io/plan9port/unix
           47 .SH "SEE ALSO
           48 .IR isalpha (3) ,
           49 .IR "The Unicode Standard" .