This module is about the string part of plain Perl scalars.  A scalar
has a string value, which is notionally a sequence of Unicode
codepoints, but may be internally encoded in either ISO-8859-1 or
UTF-8.  In places, and more so in older versions of Perl, the internal
encoding shows through.  To fully understand Perl strings it is
necessary to understand these implementation details.

This module provides functions to classify a string by encoding and to
encode a string in a desired way.

This module is implemented in XS, with a pure Perl backup version for
systems that can't handle XS.

WWW: http://search.cpan.org/dist/Scalar-String/