12-03-2008
This information is in many books and google, wikipedia.
Is there a more specific question then this? Thanks.
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LEARN ABOUT CENTOS
perl::critic::policy::codelayout::requireascii
Perl::Critic::Policy::CodeLayout::RequireASCII(3) User Contributed Perl Documentation Perl::Critic::Policy::CodeLayout::RequireASCII(3)
NAME
Perl::Critic::Policy::CodeLayout::RequireASCII - Disallow high-bit characters.
AFFILIATION
This policy is part of Perl::Critic::More, a bleeding edge supplement to Perl::Critic.
DESCRIPTION
ASCII is a text encoding first introduced in 1963. It represents 128 characters in seven-bit bytes, reserving the eighth bit for error
detection. Perl supports a large number of encodings. However, if you really want the ultimate in backward compatibility, ASCII is it!
(We won't even talk about EBCDIC and the like...)
This policy is not recommended for everyone. Instead, most of you should probably strive for one of the Unicode encodings for maximum
forward compatibility.
SEE ALSO
<http://en.wikipedia.org/wiki/Ascii>
<http://en.wikipedia.org/wiki/EBCDIC>
<http://en.wikipedia.org/wiki/Unicode>
AUTHOR
Chris Dolan <cdolan@cpan.org>
COPYRIGHT
Copyright (c) 2006-2008 Chris Dolan
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3 2014-06-10 Perl::Critic::Policy::CodeLayout::RequireASCII(3)