[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Are multi-language languages unique to the XML familyof la
On Sat, 2022-03-05 at 23:02 +0000, Roger L Costello wrote: > Hi Folks, > > Consider the C language. It is one language. It doesn't use (host) > other languages. Well, this is rather debatable. Firs,t there's the C pre-processor, which is a different language. #ifdef SOMETHING # ifdef SOMETHING_ELSE . . . # endif SOMETHING_ELSE #else SOMETHING . . . . #endif SOMETHING (the tokens on else and endif were originally ignored and written like that by convention; i once suggested something similar for XML, e.g. </div id="percy"> where the id attribute has to match the one in the start tag, for the same reason - extra error checking. C also has regular expressions in the standard library; originally these were system-dependent extensions, and POSIX standardized them. If you search for domain specific language (DSL), you'll find a ton of them for different applications; it's quite common. Often, i refer to XPath as a DSL for tree-structured data such as one might interchange with XML. Liam -- Liam Quin, https://www.delightfulcomputing.com/ Available for XML/Document/Information Architecture/XSLT/ XSL/XQuery/Web/Text Processing/A11Y training, work & consulting. Barefoot Web-slave, antique illustrations: http://www.fromoldbooks.org
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