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On the tree-transformation power of XSLT

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Published in:Acta Informatica vol. 43, no. 6 (Jan 2007), p. 371-393
Main Author: Janssen, Wim
Other Authors: Korlyukov, Alexandr, Van den Bussche, Jan
Published:
Springer Nature B.V.
Subjects:
Studies
Programming languages
Extensible Markup Language
Computer programming
Simulation
Data models
Power
Semantics
Trees
Online Access:Citation/Abstract
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Abstract:XSLT is a standard rule-based programming language for expressing transformations of XML data. The language is currently in transition from version 1.0 to 2.0. In order to understand the computational consequences of this transition, we restrict XSLT to its pure tree-transformation capabilities. Under this focus, we observe that XSLT 1.0 was not yet a computationally complete tree-transformation language: every 1.0 program can be implemented in exponential time, using a DAG representation of trees. A crucial new feature of version 2.0, however, which allows node sets over temporary trees, yields completeness. We provide a formal operational semantics for XSLT programs, and establish confluence for this semantics. [PUBLICATION ABSTRACT]
ISSN:0001-5903
1432-0525
DOI:10.1007/s00236-006-0026-8
Source:ABI/INFORM Global