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Erschienen in:
2015 | OriginalPaper | Buchkapitel
A Uniform Programmning Language for Implementing XML Standards
verfasst von : Pavel Labath, Joachim Niehren
Erschienen in: SOFSEM 2015: Theory and Practice of Computer Science
Verlag: Springer Berlin Heidelberg
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We propose X-Fun, a core language for implementing various
Xml
standards in a uniform manner. X-Fun is a higher-order functional programming language for transforming data trees based on node selection queries. It can support the
Xml
data model and
XPath
queries as a special case. We present a lean operational semantics of X-Fun based on a typed lambda calculus that enables its in-memory implementation on top of any chosen path query evaluator. We also discuss compilers from
Xslt
,
XQuery
and
XProc
into X-Fun which cover the many details of these standardized languages. As a result, we obtain in-memory implementations of all these
Xml
standards with large coverage and high efficiency in a uniform manner from
SaXON
’s
XPath
implementation.