XML transformation language: Difference between revisions

Revision as of 02:07, 7 July 2004

Revision as of 17:16, 16 July 2004

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[[fr:Langage de transformation XML]]

An '''XML transformation language''' is a [[programming language]] designed specifically to create an ''awesome output document'' based on an ''input XML document''.

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== Existing languages ==

; '''[[XSLT]]''' : XSLT is the best known XML transformation language. The XSLT 1.0 W3C recommendation was published in [[1999]] together with [[XPath]] 1.0, and it has been widely implemented since then. XSLT 2.0 is expected to be released soon as a W3C recommendation and early implementations of the specification like [http://saxon.sourceforge.net/ SAXON 8] are already available.

; '''[[XML_query_languageXML query language|XQuery]]''' : XQuery is also bound to become a W3C standard. XQuery is not an XML application, like XSLT. Consequently its syntax is much lighter. The language is based on XPath 2.0. XQuery programs cannot have [[side-effect]]s, just like XSLT and provides almost the same capabilities (for instance: declaring variables and functions, iterating over sequences, using W3C schema types), even though the program syntax are quite different. In addition to the syntax, the main difference between XSLT and XQuery is the XSLT push processing model, where certain conditions of the input document trigger the execution of templates, which is not shared with XQuery.

; '''[[STX]]''' : STX (Streaming Transformations for XML) is inspired by XSLT but has been designed to allow a one-pass transformation process that never prevents streaming. Implementations are available in Java ([http://joost.sourceforge.net/ Joost]) and Perl ([http://stx.gingerall.cz/stx/xml-stx/index.html XML::STX]).

; '''[[XML Script]]''' : An imperative scripting language inspired by [[Perl]] that uses the XML syntax. XML Script supports [[XPath]] as well as its proprietary DSLPath for selecting nodes from the input tree.

; '''[[FXT]]''' : A Functional XML Transformation Tool, implemented in [[ML_programming_language|Standard ML]].

; '''[[XDuce]]''' : A typed language with a lightweight syntax (compared to XSLT). The implementation is written in [[ML_programming_languageML programming language|ML]].

; '''[[CDuce]]''' : Extends [[XDuce]] to a general-purpose [[functional programming language]], see [http://www.cduce.org/ CDuce homepage].

; '''[[Xtatic]]''' : Applies techniques from [[XDuce]] to [[C Sharp programming language|C#]], see [http://www.cis.upenn.edu/~bcpierce/xtatic/ Xtatic homepage].