NAME

       Data::YAML - Easy YAML serialisation of Perl data structures

VERSION

       This document describes Data::YAML version 0.0.7

DESCRIPTION

       In the spirit of YAML::Tiny, Data::YAML::Reader and Data::YAML::Writer provide
       lightweight, dependency-free YAML handling. While "YAML::Tiny" is designed principally for
       working with configuration files "Data::YAML" concentrates on the transparent round-
       tripping of YAML serialized Perl data structures.

       As an example of why this distinction matters consider that "YAML::Tiny" doesn't handle
       hashes with keys containing non-printable characters. This is fine for configuration files
       but likely to cause problems when handling arbitrary Perl data structures. "Data::YAML"
       handles exotic hash keys correctly.

       The syntax accepted by "Data::YAML" is a subset of YAML. Specifically it is the same
       subset of YAML that Data::YAML::Writer produces. See Data::YAML for more information.

   YAML syntax
       Although YAML appears to be a simple language the entire YAML specification is huge.
       "Data::YAML" implements a small subset of the complete syntax trading completeness for
       compactness and simplicity.  This restricted syntax is known (to me at least) as
       'YAMLish'.

       These examples demonstrates the full range of supported syntax.

       All YAML documents must begin with '---' and end with a line containing '...'.

           --- Simple scalar
           ...

       Unprintable characters are represented using standard escapes in double quoted strings.

           --- "\t\x01\x02\n"
           ...

       Array and hashes are represented thusly

           ---
             - "This"
             - "is"
             - "an"
             - "array"
           ...

           ---
             This: is
             a: hash
           ...

       Structures may nest arbitrarily

           ---
             -
               name: 'Hash one'
               value: 1
             -
               name: 'Hash two'
               value: 2
           ...

       Undef is a tilde

           --- ~
           ...

   Uses
       Use "Data::YAML" may be used any time you need to freeze and thaw Perl data structures
       into a human readable format. The output from "Data::YAML::Writer" should be readable by
       any YAML parser.

       "Data::YAML" was originally written to allow machine-readable diagnostic information to be
       passed from test scripts to TAP::Harness. That means that if you're writing a testing
       system that needs to output TAP version 13 or later syntax you might find "Data::YAML"
       useful.

       Read more about TAP and YAMLish here: <http://testanything.org/wiki>

BUGS AND LIMITATIONS

       No bugs have been reported.

       Please report any bugs or feature requests to "data-yaml@rt.cpan.org", or through the web
       interface at <http://rt.cpan.org>.

AUTHOR

       Andy Armstrong  "<andy@hexten.net>"

LICENCE AND COPYRIGHT

       Copyright (c) 2007, Andy Armstrong "<andy@hexten.net>". All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY

       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE,
       TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF
       ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
       WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO
       THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE
       DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT
       HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY
       THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
       INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
       SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
       LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY
       OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
       SUCH DAMAGES.