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Simple accessors 

<?php
error_reporting(E_ALL);  

class NoMethodException extends Exception {}
class NoPropertyException extends Exception {}

/**
 * class Example documentation

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# netbeans.conf

# ${HOME} will be replaced by JVM user.home system property
netbeans_default_userdir="${HOME}/.netbeans/6.7m2"

# Options used by NetBeans launcher by default, can be overridden by explicit
# command line switches:
netbeans_default_options="-J-Dorg.glassfish.v3.installRoot=/Applications/NetBeans/glassfish-v3-prelude-b28c -J-Dcom.sun.aas.installRoot=/Applications/NetBeans/glassfish-v2.1 -J-Dorg.glassfish.v3.installRoot=/Applications/NetBeans/glassfish-v3-prelude-b28c -J-Dcom.sun.aas.installRoot=/Applications/NetBeans/glassfish-v2.1 -J-client -J-Xss2m -J-Xms32m -J-XX:PermSize=32m -J-XX:MaxPermSize=200m -J-Dnetbeans.logger.console=true -J-ea -J-Dapple.laf.useScreenMenuBar=true -J-Dsun.java2d.noddraw=true"
# Note that a default -Xmx is selected for you automatically.
# You can find this value in var/log/messages.log file in your userdir.

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# /opt/ruby-1.9.1/bin/gem install merb
Building native extensions.  This could take a while...
Building native extensions.  This could take a while...
ERROR:  Error installing merb:
	ERROR: Failed to build gem native extension.

/opt/ruby-1.9.1/bin/ruby extconf.rb install merb
creating Makefile

make

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# http://confluence.concord.org/display/CCTR/Comparison+of+Ruby+1.8.6+1.9+and+JRuby+running+on+Java+1.5+1.6+and+1.7

#!/usr/bin/env ruby
#
# Ruby 1.8.6, 1.9, and JRuby running on Java 1.5, 1.6, and 1.7 compared
#
# Stephen Bannasch, Feb 4, 2009
#
# mergesort benchmark adapted from:
#

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PHP5 Properties example
<?php
error_reporting(E_ALL);

class TypeMismatchException extends Exception {}

class PropertyText {
    private $content = '';
    private $valid_for = array('min' => 1, 'max' => 255); // default
    private $error_message = '';

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$ merb-gen core merb_on_ruby19
/opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-core-1.0.9/lib/merb-core/dispatch/router/behavior.rb:18: warning: undefining `object_id' may cause serious problem
/opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-core-1.0.9/lib/merb-core/dispatch/router/behavior.rb:18: warning: undefining `__send__' may cause serious problem
/opt/local/lib/ruby1.9/gems/1.9.1/gems/templater-0.5.0/lib/templater/core_ext/string.rb:5:in `realign_indentation': undefined method `to_a' for #<String:0x7504f4> (NoMethodError)
	from /opt/local/lib/ruby1.9/gems/1.9.1/gems/templater-0.5.0/lib/templater/manifold.rb:93:in `desc'
	from /opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-gen-1.0.9/lib/merb-gen/generator.rb:26:in `<module:Generators>'
	from /opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-gen-1.0.9/lib/merb-gen/generator.rb:20:in `<module:Merb>'
	from /opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-gen-1.0.9/lib/merb-gen/generator.rb:1:in `<top (required)>'
	from /opt/local/lib/ruby1.9/gems/1.9.1/gems/merb-gen-1.0

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 sudo gem1.9 install dbd-mysql -- --with-mysql-config=/opt/local/lib/mysql5/bin/mysql_config 
Building native extensions.  This could take a while...
ERROR:  Error installing dbd-mysql:
	ERROR: Failed to build gem native extension.

/opt/local/bin/ruby1.9 extconf.rb install dbd-mysql -- --with-mysql-config=/opt/local/lib/mysql5/bin/mysql_config
checking for mysql_ssl_set()... yes
checking for mysql.h... yes
creating Makefile

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$ sudo gem1.9 install ruby-xquery
Building native extensions.  This could take a while...
ERROR:  Error installing ruby-xquery:
	ERROR: Failed to build gem native extension.

/opt/local/bin/ruby1.9 extconf.rb install ruby-xquery
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... no
checking for atan() in -lm... yes

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$ sudo gem1.9 install ruby-xquery
Building native extensions.  This could take a while...
ERROR:  Error installing ruby-xquery:
	ERROR: Failed to build gem native extension.

/opt/local/bin/ruby1.9 extconf.rb install ruby-xquery
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... no
checking for atan() in -lm... yes

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spec = Gem::Specification.new do |s|
  s.name = "json"
  s.version = "1.1.3"
  s.summary = "this fakes json (which is now included in stdlib)"
  s.homepage = "http://json.rubyforge.org/"
  s.has_rdoc = false
  s.required_ruby_version = '>= 1.9.1'
end