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Showing posts with the label Ruby

Tab-Completion and Syntax coloring for irb (Ruby Interpreter)

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Wirble is a Ruby Gem that provides Tab-Completion and syntax coloring for the Ruby interpreter, irb . In this article we'll see how to install it and configure it. irb with Tab-Completion and Syntax coloring Install Open a terminal window and run: sudo gem install wirble && echo -n "require 'rubygems'\nrequire 'wirble'\nWirble.init\nWirble.colorize" >> ~/.irbrc Usage Now that Wirble is installed and irbrc is properly configured, (re)open irb and then you can start using the "TAB" key to auto-complete while typing a Ruby instruction. Only the results will be colorized, not the instructions typed. References Wirble: Tab-Completion and Syntax Coloring for irb | Ruby Inside

[HOW TO] Install gtk-webkit-ruby Gem

WebKit is an open source web browser engine. gtk-webkit-ruby is a Ruby Gem that provides Gtk Webkit bindings for ruby, making it possible to embed a webview (class that has the ability to render a webpage) in a Ruby-GNOME2 application. In this article we'll see how to install it in any Ubuntu distribution. Install Open a terminal window and run: sudo apt-get install ruby-gnome2-dev -y && sudo apt-get install libwebkitgtk-dev -y && sudo gem install gtk-webkit-ruby -y Usage Bellow are the main instructions that should be added to a program in order to render a webpage within a Ruby-GNOME2 application. Please note that this is not a runnable example. require "gtk2" require "webkit" webview = WebKit::WebView.new webview.show webview.open(url) # url is a string Note While I was trying to install the Gem I encountered some errors that were caused by dependencies not being installed in my system: ruby-gnome2-dev and libwebkitgtk...

[HOW TO] Install Shoes (Ruby GUI Toolkit) in Xubuntu

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Shoes is a cross-platform toolkit for writing graphical apps easily and artfully using Ruby. Unlike most other GUI toolkits, Shoes is designed to be easy and straightforward without losing power. Figure 1. Shoes (Ruby GUI Toolkit) running on Xubuntu 12.04 Installing Shoes on Xubuntu (or any other Ubuntu distribution) is not as straight forward as it should be. There's a Shoes package in the Ubuntu repositories, however, it's buggy and using it will result in the following error: no such file to load -- rubygems From my experience building Shoes might result in errors during the process. The easiest and simplest way to install Shoes in Xubuntu were to download Shoes 2 (0.r1134), codenamed “Raisins” and use it to run the Shoes programs. It's a older version, but I'm just getting started with Shoes and for now it'll suffice. Install Open a terminal window and run: sudo wget -O /usr/local/bin/shoes http://goo.gl/3cigS && ...

[HOW TO] Install Ruby in Xubuntu

Ruby is an interpreted, dynamic, open source scripting language for easy object-oriented programming. It a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. In this article will learn how to install the Ruby interpreter and RubyGems in Xubuntu. Then we'll take a quick look at how to run a Ruby program and how to install a gem package. Install Open a terminal window and run: sudo apt-get install ruby rubygems -y Run a Ruby script ruby script.rb Run the interactive interpreter The irb is a tool to execute interactively ruby expressions read from stdin. Run the command irb and type the Ruby command. Examples: $ irb irb(main):001:0> 2**20 => 1048576 irb(main):002:0> name = gets XubuntuGeek => "XubuntuGeek\n" irb(main):003:0> name.chop! => "XubuntuGeek" irb(main):004:0> puts "Hello #{name}" + "!" * 3 Hello XubuntuGeek!!! => nil List remote instal...