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NAME
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isalpharune, islowerrune, isspacerune, istitlerune, isupperrune,
tolowerrune, totitlerune, toupperrune – Unicode character classes
and cases
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SYNOPSIS
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#include <u.h>
#include <libc.h>
int isalpharune(Rune c)
int islowerrune(Rune c)
int isspacerune(Rune c)
int istitlerune(Rune c)
int isupperrune(Rune c)
Rune tolowerrune(Rune c)
Rune totitlerune(Rune c)
Rune toupperrune(Rune c)
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DESCRIPTION
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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 isalpha(3) for
ASCII, these routines test types and modify cases for Unicode
characters. The names
are self-explanatory.
The case-conversion routines return the character unchanged if
it has no case.
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SOURCE
SEE ALSO
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isalpha(3), The Unicode Standard.
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