Case Mappings? http://www.unicode.org/unicode/reports/tr21/
-lc(), uc(), lcfirst(), and ucfirst() work only for simple cases, where
-the mapping goes from a single Unicode character to another single
-Unicode character. See lib/unicore/SpecCase.txt (and CaseFold.txt).
+lc(), uc(), lcfirst(), and ucfirst() work only for some of the
+simplest cases, where the mapping goes from a single Unicode character
+to another single Unicode character. See lib/unicore/SpecCase.txt
+(and CaseFold.txt).
=item *
=item *
-lc(), uc(), lcfirst(), and ucfirst() work for simple cases
-where the mapping goes from a single Unicode character to
-another single Unicode character. More complex cases, where
-for example one character maps into several, are not yet implemented.
+lc(), uc(), lcfirst(), and ucfirst() work only for some of the
+simplest cases, where the mapping goes from a single Unicode character
+to another single Unicode character. More complex cases, where for
+example one character maps into several, are not yet implemented.
=item *