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ERuby
Embedded Ruby (also shortened as ERB) is a templating system that embeds Ruby into a text document. It is often used to embed Ruby code in an HTML document, similar to ASP and JSP, and PHP and other server-side scripting languages. The templating system of eRuby combines Ruby code and plain text to provide flow control and variable substitution, thus making the combined code easier to maintain. The View module of Ruby on Rails is responsible for displaying the response or output on a browser. In its simplest form, a view can be a piece of HTML code which has some static content. However, for most applications, just having static content may not be enough. Many Ruby on Rails applications will require dynamic content created by the controller (action method) to be displayed in their view. This is made possible by using Embedded Ruby to generate templates which can contain dynamic content. Embedded Ruby allows ruby code to be embedded in a view document. This code gets repl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haml
Haml (HTML Abstraction Markup Language) is a templating system that is designed to avoid writing inline code in a web document and make the HTML cleaner. Similar to other template systems like eRuby, Haml also embeds some code that gets executed during runtime and generates HTML code in order to provide some dynamic content. In order to run Haml code, files need to have a extension. These files are similar to .erb or .eRuby files, which also help embed Ruby code while developing a web application. While parsing code comments, Haml uses the same rules as Ruby 1.9 or later. Haml understands only ASCII-compatible encodings, like UTF-8, but not UTF-16, or UTF-32, because these are not compatible with ASCII. Haml can be used at the command line, as a separate Ruby module, or in a Ruby on Rails application. History Haml was originally introduced by Hampton Catlin with its initial release in 2006 and his work was taken up by a few other people. His motive was to make HTML simple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruby (programming Language)
Ruby is a general-purpose programming language. It was designed with an emphasis on programming productivity and simplicity. In Ruby, everything is an object (computer science), object, including primitive data types. It was developed in the mid-1990s by Yukihiro Matsumoto, Yukihiro "Matz" Matsumoto in Japan. Ruby is interpreted language, interpreted, high-level programming language, high-level, and Dynamic typing, dynamically typed; its interpreter uses garbage collection (computer science), garbage collection and just-in-time compilation. It supports multiple programming paradigms, including procedural programming, procedural, object-oriented programming, object-oriented, and functional programming. According to the creator, Ruby was influenced by Perl, Smalltalk, Eiffel (programming language), Eiffel, Ada (programming language), Ada, BASIC, and Lisp (programming language), Lisp. History Early concept According to Matsumoto, Ruby was conceived in 1993. In a 1999 post to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruby Programming Language
Ruby is a general-purpose programming language. It was designed with an emphasis on programming productivity and simplicity. In Ruby, everything is an object, including primitive data types. It was developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan. Ruby is interpreted, high-level, and dynamically typed; its interpreter uses garbage collection and just-in-time compilation. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. According to the creator, Ruby was influenced by Perl, Smalltalk, Eiffel, Ada, BASIC, and Lisp. History Early concept According to Matsumoto, Ruby was conceived in 1993. In a 1999 post to the Ruby-Talk mailing list, he shared some of his early ideas about the language: Matsumoto described Ruby's design as resembling a simple Lisp language at its core, with an object system like that of Smalltalk, blocks inspired by higher-order functions, and practical utility like tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Markaby
Markaby is a small Ruby library for writing HTML code in pure Ruby. It is an alternative to templating languages such as ERb and HAML which combine Ruby code with some form of markup. It was developed by the computer programmer "why the lucky stiff" and its name comes from ''Markup as Ruby''. Usage require 'markaby' mab = Markaby::Builder.new mab.html do head body do h1 "Boats.com has great deals" ul do li "$49 for a canoe" li "$39 for a raft" li "$29 for a huge boot that floats and can fit 5 people" end end end puts mab.to_s Executing the above code will render the following HTML: Boats.com Boats.com has great deals $49 for a canoe $39 for a raft $29 for a huge boot that floats and can fit 5 people Distribution Gem gem install markaby Rails plugin script/plugin install git://github.com/markaby/markaby.git Camping Markaby is the templating engine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Web Template System
A web template system in web publishing allows web designers and developers to work with ''web templates'' to automatically generate custom web pages, such as the results from a search. This reuses static web page elements while defining dynamic elements based on HTTP request, web request parameters. Web templates support static content, providing basic structure and appearance. Developers can implement templates from content management systems, web application frameworks, and HTML editors. Overview A ''web template system'' is composed of the following: * A Template processor, template engine: the primary processing element of the system; * ''Content resource'': any of various kinds of input data streams, such as from a relational database, XML files, Lightweight Directory Access Protocol, LDAP directory, and other kinds of local or Computer networking, networked data; * ''Template resource'': ''web template''s specified according to a template language; The template and con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Template Engine (web)
A web template system in web publishing allows web designers and developers to work with ''web templates'' to automatically generate custom web pages, such as the results from a search. This reuses static web page elements while defining dynamic elements based on web request parameters. Web templates support static content, providing basic structure and appearance. Developers can implement templates from content management systems, web application frameworks, and HTML editors. Overview A ''web template system'' is composed of the following: * A template engine: the primary processing element of the system; * '' Content resource'': any of various kinds of input data streams, such as from a relational database, XML files, LDAP directory, and other kinds of local or networked data; * '' Template resource'': ''web template''s specified according to a template language; The template and content resources are processed and combined by the template engine to mass-produce web doc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instance Variable
In class-based, object-oriented programming, an instance variable is a variable defined in a class (i.e., a member variable), for which each instantiated object of the class has a separate copy, or instance. An instance variable has similarities with a class variable, but is non- static. An instance variable is a variable which is declared in a class but outside of constructors, methods, or blocks. Instance variables are created when an object is instantiated, and are accessible to all the constructors, methods, or blocks in the class. Access modifiers can be given to the instance variable. An instance variable is not a class variable, although there are similarities. Both are a type of class attribute (or class property, field, or data member). While an instance variable's value may differ between instances of a class, a class variable can only have one value at any one time, shared between all instances. The same dichotomy between ''instance'' and ''class'' members ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RDoc
RDoc, designed by Dave Thomas, is an embedded documentation generator for the Ruby programming language. It analyzes Ruby source code, generating a structured collection of pages for Ruby objects and methods. Code comments can be added in a natural style. RDoc is included as part of the Ruby core distribution. The RDoc software and format are successors to the Ruby Document format (with associated software RD). RDoc can produce usable documentation even if the target source code does not contain explicit comments as it will still parse the classes, modules, and methods, and list them in the generated API An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build ... files. RDoc also provides the engine for creating Ruby ri data files, providing access to API information from the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phusion Passenger
Phusion Passenger (informally also known as mod_rails and mod_rack among the Ruby community) is a free web server and application server with support for Ruby, Python and Node.js. It is designed to integrate into the Apache HTTP Server or the nginx web server, but also has a mode for running standalone without an external web server. Phusion Passenger supports Unix-like operating systems, and is available as a gem package, as a tarball, or as native Linux packages. Originally designed for web applications built on the Ruby on Rails framework, it was later extended to support arbitrary Ruby web frameworks through the Rack interface. Later versions also added support for Python through the WSGI interface, as well as support for Node.js. In 2012, Phusion announcePhusion Passenger Enterprise a paid, commercial variant of Phusion Passenger with "a wide array of premium features". Phusion has stated that the open source variant will continue to be developed and maintained along with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mod Ruby
mod_ruby is a module that embeds the Ruby interpreter into the Apache web server to allow Ruby code to execute natively, faster than other CGI methods. Its drawback is that the characteristic sharing of classes among Apache processes is not safe for multiple applications , explaining the security problem of mod_ruby. (e.g., multiple applications running simultaneously). There is also the simila mod_mruby for mruby, a lightweight Ruby implementation. As of at least 2015, the project seems to no longer be unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux
Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, packaged as a Linux distribution (distro), which includes the kernel and supporting system software and library (computing), libraries—most of which are provided by third parties—to create a complete operating system, designed as a clone of Unix and released under the copyleft GPL license. List of Linux distributions, Thousands of Linux distributions exist, many based directly or indirectly on other distributions; popular Linux distributions include Debian, Fedora Linux, Linux Mint, Arch Linux, and Ubuntu, while commercial distributions include Red Hat Enterprise Linux, SUSE Linux Enterprise, and ChromeOS. Linux distributions are frequently used in server platforms. Many Linux distributions use the word "Linux" in their name, but the Free ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java (programming Language)
Java is a High-level programming language, high-level, General-purpose programming language, general-purpose, Memory safety, memory-safe, object-oriented programming, object-oriented programming language. It is intended to let programmers ''write once, run anywhere'' (Write once, run anywhere, WORA), meaning that compiler, compiled Java code can run on all platforms that support Java without the need to recompile. Java applications are typically compiled to Java bytecode, bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture. The syntax (programming languages), syntax of Java is similar to C (programming language), C and C++, but has fewer low-level programming language, low-level facilities than either of them. The Java runtime provides dynamic capabilities (such as Reflective programming, reflection and runtime code modification) that are typically not available in traditional compiled languages. Java gained popularity sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
