Lots of man pages.

man/man3/isalpharune.3

@@ -2,7 +2,9 @@
 .SH NAME
 isalpharune, islowerrune, isspacerune, istitlerune, isupperrune, tolowerrune, totitlerune, toupperrune \- Unicode character classes and cases
 .SH SYNOPSIS
-.B #include <utf.h>
+.B #include <u.h>
+.br
+.B #include <libc.h>
 .PP
 .B
 int isalpharune(Rune c)
@@ -33,7 +35,7 @@ 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)
+.IR ctype (2)
 for
 .SM ASCII\c
 ,
@@ -42,6 +44,8 @@ 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 SOURCE
+.B /sys/src/libc/port/runetype.c
 .SH "SEE ALSO
-.IR ctype (3) ,
+.IR ctype (2) ,
 .IR "The Unicode Standard" .