Parser is a free[clarification needed] server-side CGI web scripting language developed by Art. Lebedev Studio and released under theGPL.
Originally, Parser was merely a simple macro processing language. The latest 3rd revision (March 2006) introduced object-oriented programming features.
The compiler for the language was developed in C++ by studio employees Konstantin Morshnev and Alexander Petrosyan to automate often repeated tasks, especially maintenance of already existing websites. It was used in many web projects of the studio. Since revision 3 it was released as free software and it is now used in other websites, mostly in Russia (according to a partial list at the language's website).
The language supports technologies needed for common web design tasks: XML, Document Object Model (DOM), Perl Compatible Regular Expressions (PCRE) and others.
CGI, the Common Gateway Interface, defines a standard for communication between HTTP servers and other programs, so that the content of a web page can come from a program, rather than from a static HTML page. CGI programs can be written in any language - CGI is not a programming language. CGI programs allow the web site to be interactive, rather than merely a digital pamphlet.
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