YAML::Syck

YAML::Syck(3)	     User Contributed Perl Documentation	YAML::Syck(3)



NAME
       YAML::Syck - Fast, lightweight YAML loader and dumper

VERSION
       This document describes version 1.07 of YAML::Syck, released April 25,
       2009.

SYNOPSIS
	   use YAML::Syck;

	   # Set this for interoperability with other YAML/Syck bindings:
	   # e.g. Load(’Yes’) becomes 1 and Load(’No’) becomes ’’.
	   $YAML::Syck::ImplicitTyping = 1;

	   $data = Load($yaml);
	   $yaml = Dump($data);

	   # $file can be an IO object, or a filename
	   $data = LoadFile($file);
	   DumpFile($file, $data);

	   # A string with multiple YAML streams in it
	   $yaml = Dump(@data);
	   @data = Load($yaml);

DESCRIPTION
       This module provides a Perl interface to the libsyck data serializa-
       tion library.  It exports the "Dump" and "Load" functions for convert-
       ing Perl data structures to YAML strings, and the other way around.

       NOTE: If you are working with other language’s YAML/Syck bindings
       (such as Ruby), please set $YAML::Syck::ImplicitTyping to 1 before
       calling the "Load"/"Dump" functions.  The default setting is for pre-
       serving backward-compatibility with "YAML.pm".

FLAGS
       $YAML::Syck::Headless

       Defaults to false.  Setting this to a true value will make "Dump" omit
       the leading "---\n" marker.

       $YAML::Syck::SortKeys

       Defaults to false.  Setting this to a true value will make "Dump" sort
       hash keys.

       $YAML::Syck::SingleQuote

       Defaults to false.  Setting this to a true value will make "Dump"
       always emit single quotes instead of bare strings.

       $YAML::Syck::ImplicitTyping

       Defaults to false.  Setting this to a true value will make "Load" rec-
       ognize various implicit types in YAML, such as unquoted "true",
       "false", as well as integers and floating-point numbers.	 Otherwise,
       only "~" is recognized to be "undef".

       $YAML::Syck::ImplicitUnicode

       Defaults to false.  For Perl 5.8.0 or later, setting this to a true
       value will make "Load" set Unicode flag on for every string that
       contains valid UTF8 sequences, and make "Dump" return a unicode
       string.

       Regardless of this flag, Unicode strings are dumped verbatim without
       escaping; byte strings with high-bit set will be dumped with backslash
       escaping.

       However, because YAML does not distinguish between these two kinds of
       strings, so this flag will affect loading of both variants of strings.

       $YAML::Syck::ImplicitBinary

       Defaults to false.  For Perl 5.8.0 or later, setting this to a true
       value will make "Dump" generate Base64-encoded "!!binary" data for all
       non-Unicode scalars containing high-bit bytes.

       $YAML::Syck::UseCode / $YAML::Syck::LoadCode / $YAML::Syck::DumpCode

       These flags control whether or not to try and eval/deparse perl source
       code; each of them defaults to false.

       Setting $YAML::Syck::UseCode to a true value is equivalent to setting
       both $YAML::Syck::LoadCode and $YAML::Syck::DumpCode to true.

BUGS
       Dumping Glob/IO values does not work yet.

CAVEATS
       This module implements the YAML 1.0 spec.  To deal with data in YAML
       1.1, please use the "YAML::XS" module instead.

       The current implementation bundles libsyck source code; if your system
       has a site-wide shared libsyck, it will not be used.

       Tag names such as "!!perl/hash:Foo" is blessed into the package "Foo",
       but the "!hs/foo" and "!!hs/Foo" tags are blessed into "hs::Foo".
       Note that this holds true even if the tag contains non-word charac-
       ters; for example, "!haskell.org/Foo" is blessed into
       "haskell.org::Foo".  Please use Class::Rebless to cast it into other
       user-defined packages.

SEE ALSO
       YAML, JSON::Syck

       <http://www.yaml.org/>

AUTHORS
       Audrey Tang <cpan@audreyt.org>

COPYRIGHT
       Copyright 2005-2009 by Audrey Tang <cpan@audreyt.org>.

       This software is released under the MIT license cited below.

       The libsyck code bundled with this library is released by "why the
       lucky stiff", under a BSD-style license.	 See the COPYING file for
       details.

       The "MIT" License

       Permission is hereby granted, free of charge, to any person obtaining
       a copy of this software and associated documentation files (the "Soft-
       ware"), to deal in the Software without restriction, including without
       limitation the rights to use, copy, modify, merge, publish, dis-
       tribute, sublicense, and/or sell copies of the Software, and to permit
       persons to whom the Software is furnished to do so, subject to the
       following conditions:

       The above copyright notice and this permission notice shall be
       included in all copies or substantial portions of the Software.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
       EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
       MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
       IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
       CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
       TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
       SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.



perl v5.8.8			  2009-04-24			YAML::Syck(3)