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Didier Verna's scientific blog: Lisp, Emacs, LaTeX and random stuff. 2024-01-31T17:45:28+00:00 Didier Verna urn:md5:a22c53786aff986a2da4c770c233a8f9 Dotclear urn:md5:3577b416d1c0d85eb6ca6a0462ac4dcc Tuesday, January 3 2012 Tuesday, January 3 2012 Didier Verna Miscellaneous ACCUconferenceDomain Specific LanguagesDSLExtensibility <p>I'm pleased to announce that I will hold a 90 minutes session on language extensibility at the next <a href="http://accu.org/index.php/conferences" hreflang="en">ACCU</a> conference. A shortened abstract is given below (a longer one is available at the conference website).</p> <h3>Impact of Extensibility on Domain Specific Language Design and Implementation</h3> <p>Domain-specific languages (DSLs) are usually very different from the general purpose language (GPL) in which the embedding application is written. The need for designing a DSL as a completely new language often comes from the lack of extensibility of the chosen GPL. By imposing a rigid syntax, a set of predefined operators and data structures, the traditional GPL approach leaves no choice but to implement a DSL as a different language, with its own lexical and syntactic parser, semantic analyzer and possibly its own brand new interpreter or even compiler.</p> <p>Some GPLs, however, are extensible or customizable enough to let one implement a DSL merely as either a subset or an extension of the original language. While the end-user does not see a difference with the traditional approach, the gain for the developer is substantial. Since the DSL is now just another entry point for the same original GPL, there is essentially only one application written in only one language to maintain. Moreover, no specific language infrastructure (parser, interpreter, compiler etc.) is required for the DSL anymore, since it is simply expressed in terms of the original GPL.</p> <p>The purpose of this presentation is to illustrate the most important factors that make a language truly extensible, and to show how extensibility impacts the process of DSL design and implementation.</p> https://www.didierverna.net/blog/index.php?post/2012/01/03/ACCU-2012-session-on-language-extensibility#comment-form https://www.didierverna.net/blog/index.php?feed/navlang:en/atom/comments/94