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The LiveCode programming language (formerly the "Revolution" programming language)〔(MacNN: RunRev replaces Revolution with "LiveCode" )〕 is both an open-source and proprietary cross-platform〔(PCWorld: Development Tool for Mac OS X and Vista )〕 rapid application development language inspired by HyperCard's programming language HyperTalk. The language was introduced in 2001.〔(Macworld: Runtime releases Revolution 1.1 for OS X )〕 The "Revolution" development system was based on the MetaCard engine technology which Runtime Revolution later acquired from MetaCard Corporation in 2003.〔(Macworld: Runtime Revolution acquires MetaCard technology )〕 The platform won the Macworld Annual Editor's Choice Award for "Best Development Software" in 2004. "Revolution" was renamed "LiveCode" in the fall of 2010. "LiveCode" is developed and sold by Runtime Revolution Ltd., based in Edinburgh, Scotland. In March, 2015, the company was renamed "LiveCode Ltd.", to unify the company name with the product. In April 2013 a free/open source version 'LiveCode Community Edition 6.0' was published after a successful crowdfunding campaign at Kickstarter.〔https://www.kickstarter.com/projects/1755283828/open-source-edition-of-livecode〕 The code base was re-licensed and made available as Free and open source software with a version in April 2013. LiveCode runs on iOS, Android, OS X, Windows 95 through Windows 10, Raspberry Pi and several variations of Unix, including Linux, Solaris, and BSD. It can be used for mobile, desktop and server/CGI applications. The iOS (iPhone and iPad) version was released in December 2010.〔(''Software Development Times'': Runtime Revolution Releases iOS Deployment Pack )〕 The first version to deploy to the Web was released in 2009. It is the most widely used HyperCard/HyperTalk clone, and the only one that runs on all major operating systems. A developer release of v.8 was announced in New York on March 12, 2015. This major enhancement to the product includes a new, separate development language, known as "LiveCode Builder", which is capable of creating new object classes called "widgets". In earlier versions, the set of object classes was fixed, and could only be enhanced via the use of ordinary procedural languages like C. The new language, which runs in its own IDE, is a departure from the transitional x-talk paradigm in that it permits typing of variables. But the two environments are fully integrated, and apart from the ability to create new objects, development in LiveCode proceeds in the normal way, within the established IDE. A second crowdfunding campaign to (Bring HTML5 to LiveCode ) reached funding goals of nearly $400,000 USD on July 31, 2014. LiveCode developer release 8.0 DP4 (August 31, 2015) was the first to include a standalone deployment option to HTML5. ==Description== The LiveCode software creates applications that run in many supported environments, using a compile-free workflow. The same computer code in LiveCode can play across multiple devices and platforms. LiveCode uses a high level, English-like programming language that is dynamically typed. The high-level programming language and compile-free workflow generates code that is self-documenting and easy for casual programmers to comprehend. For example, if the following script was executed when the system clock was at 9:00 AM: repeat ten times put "Hello world at" && the time & return after field 1 end repeat Ten lines of "Hello world at 9:00 AM" will be loaded into the first text field. (numbered as such and denoted as "field 1") * "repeat" (and the associated "end repeat") is a control structure, illustrated here in just one of its various forms. * "put" is a command * "Hello World at" is a literal * "the time" is a function that calls the system time * "return" is a constant equal to ASCII character 10 (linefeed) * "after" is a keyword that is involved with an extremely powerful and intuitive system known as "chunking", a hallmark of xTalk languages. * "field 1" is an object reference, here denoted by the layer number of a text field. Almost all standard object classes are supported, and may be referred to in several, highly-intuitive ways. LiveCode's natural English-like syntax is easy for beginners to learn. Variables are typeless, and are typed at compile time based purely on context. This makes the language simple to read and maintain, with relatively minimal loss of speed. The language contains advanced features including associative arrays,〔(Tutorial: Using Arrays in LiveCode )〕 regular expressions, multimedia, support for a variety of SQL databases, and TCP/IP libraries. The LiveCode engine supports several common image formats (including BMP, PNG, GIF, and JPEG,), anti-aliased vector graphics, HTML-style text hyperlinks, chained behaviors and embedded web browsers. Accessing these higher-level functions is designed to be straightforward. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「LiveCode」の詳細全文を読む スポンサード リンク
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