关于yml格式类型文件及YAML的一些资源

在drupal中用了大量yml扩展名的配置文件，这是因为symfony采用了这样的配置文件，yml文件扩展名是YAML的缩写，YAML于2001年出现，是一种数据描述语言，类似xml，但非常简洁，在2009年发布了1.2版本，在php中有php-yaml,syck,spyc进行解析

YAML的官网是：http://www.yaml.org/

以下是其官网2016年4月6日的首页内容：

%YAML 1.2---YAML: YAML Ain't Markup LanguageWhat It Is: YAML is a human friendly data serialization  standard for all programming languages.YAML Resources:  YAML 1.2 (3rd Edition): http://yaml.org/spec/1.2/spec.html  YAML 1.1 (2nd Edition): http://yaml.org/spec/1.1/  YAML 1.0 (1st Edition): http://yaml.org/spec/1.0/  YAML Issues Page: https://github.com/yaml/yaml/issues  YAML Mailing List: [e-mail]  YAML IRC Channel: "#yaml on irc.freenode.net"  YAML Cookbook (Ruby): http://yaml4r.sourceforge.net/cookbook/ (local)  YAML Reference Parser: http://ben-kiki.org/ypaste/Projects:  C/C++ Libraries:  - libyaml       # "C" Fast YAML 1.1  - Syck          # (dated) "C" YAML 1.0  - yaml-cpp      # C++ YAML 1.2 implementation  Ruby:  - psych         # libyaml wrapper (in Ruby core for 1.9.2)  - RbYaml        # YAML 1.1 (PyYaml Port)  - yaml4r        # YAML 1.0, standard library syck binding  Python:  - PyYaml        # YAML 1.1, pure python and libyaml binding  - PySyck        # YAML 1.0, syck binding  Java:  - JvYaml        # Java port of RbYaml  - SnakeYAML     # Java 5 / YAML 1.1  - YamlBeans     # To/from JavaBeans  - JYaml         # Original Java Implementation  Perl Modules:  - YAML          # Pure Perl YAML Module  - YAML::XS      # Binding to libyaml  - YAML::Syck    # Binding to libsyck  - YAML::Tiny    # A small YAML subset module  - PlYaml        # Perl port of PyYaml  C#/.NET:  - YamlDotNet    # YAML 1.1 library with serialization support  - yaml-net      # YAML 1.1 library  - yatools.net   # (in-progress) YAML 1.1 implementation  Golang:  - Go-yaml       # YAML support for the Go language.  - Go-gypsy      # Simplified YAML parser written in Go.  PHP:  - php-yaml      # libyaml bindings (YAML 1.1)  - syck          # syck bindings (YAML 1.0)  - spyc          # yaml loader/dumper (YAML 1.?)  OCaml:  - ocaml-syck    # YAML 1.0 via syck bindings  Javascript:  - JS-YAML       # Native PyYAML port to JavaScript.  - JS-YAML Online# Browserified JS-YAML demo, to play with YAML in your browser.  Actionscript:  - as3yaml       # port of JvYAML (1.1)  Haskell:  - YamlReference # Haskell 1.2 reference parser  Dart:  - yaml # YAML package for Dart  Others:  - yamlvim (src) # YAML dumper/emitter in pure vimscriptRelated Projects:  - Rx            # Multi-Language Schemata Tool for JSON/YAML  - Kwalify       # Ruby Schemata Tool for JSON/YAML  - yaml_vim      # vim syntax files for YAML  - yatools.net   # Visual Studio editor for YAML  - JSON          # Official JSON Website  - Pygments      # Python language Syntax Colorizer /w YAML supportNews:  - 20-NOV-2011 -- JS-YAML, a JavaScript YAML parser by Alexey Zapparov and Vitaly Puzrin.  - 18-AUG-2010 -- Ruby 1.9.2 includes psych, a libyaml wrapper by Aaron Patterson.  - 17-AUG-2010 -- vimscript parser/emitter was created by Nikolay Pavlov.  - 01-OCT-2009 -- YAML 1.2 (3rd Edition) was patched.  - 21-JUL-2009 -- YAML 1.2 (3rd Edition) was released.  - 28-APR-2009 -- A new version of SnakeYAML was released.  - 01-APR-2009 -- The YAML 1.2 spec was planned to be finalized by the end of the month.  - 07-JAN-2009 -- Andrey Somov releases SnakeYAML, a 1.1 YAML Parser  - 03-JAN-2009 -- Burt Harris announced YAML for .NET and editor for Visual Studio  - 02-DEC-2008 -- Jesse Beder released YAML for C++  - 11-MAY-2008 -- Oren Ben-Kiki has released a new YAML 1.2 spec draft  - 29-NOV-2007 -- Alexey Zakhlestin has updated his Syck (YAML 1.0) binding for PHP  - 23-NOV-2007 -- Derek Wischusen has release Action Script 3 YAML 1.1  - 01-AUG-2006 -- Kirill Simonov has released libyaml, a parser and emitter in "C"  - 06-JUN-2006 -- Ola Bini is at it again, this time with a Java implementation  - 03-JUN-2006 -- Christophe Lambrechts and Jonathan Slenders announced a .NET parser  - 07-MAY-2006 -- Ola Bini released a pure-ruby YAML 1.1 parser and emitter  - 12-APR-2006 -- Kirill's YAML 1.1 parser for Python is now at PyYaml  - 05-FEB-2006 -- Spyc YAML for PHP is now at version 0.3  - 17-DEC-2005 -- Makoto Kuwata has released Kwalify 0.5, YAML/JSON schema validator  - 14-DEC-2005 -- Toby Ho has released Jyaml, a Java library for YAML based on Rolf Veen's work  - 30-AUG-2005 -- Kirill Simonov has produce a wonderful Python binding for Syck  - 08-APR-2005 -- As it turns out, YAML is a superset of the JSON serialization language  - 18-MAY-2005 -- Why has released version 0.55 of Syck  - 28-DEC-2004 -- Announcing YAML 1.1 Working Draft  - 01-OCT-2004 -- YAML for Cocoa was released by Will Thimbley  - 08-FEB-2004 -- Slaven Rezic announced a new version of his Javascript binding  - 29-JAN-2004 -- Ingy, Oren, and Clark spent 4 days hacking on the spec in Portland.  - 10-OCT-2003 -- The Syck implementation with bindings for Ruby, Python,                   and PHP is now at version .41  - 26-APR-2003 -- Mike Orr has taken over the Pure Python development.  - 26-APR-2003 -- Brian Ingerson has created a FIT platform for Wiki-like testing.  - 24-JAN-2003 -- Updates to specification.  - 25-JUL-2002 -- Both the Ruby and Python parsers have made significant progress.                   There is an article about YAML by Kendall Grant Clark at xml.com.                   There is also a draft XML binding.  - 02-JUL-2002 -- Brian Ingerson will be giving a 45 minute presentation on YAML at the                   O'Reilly Open Source Conference in San Diego on July 24th 2002.  - 01-FEB-2002 -- Brian's Perl implementation YAML.pm, has been updated with new documentation.                   Included in this release is YSH, a test shell for learning how YAML works.  - 03-JAN-2002 -- YAML(tm) starts the new year with a new name YAML Ain't Markup Language.  - 17-MAY-2001 -- YAML now has a mailing list at SourceForge.  - 15-MAY-2001 -- YAML is started with a first pass specification.# Maintained by Clark C. Evans...