Towards Merging PlatΩ and PGIP

  • Authors:
  • David Aspinall;Serge Autexier;Christoph Lüth;Marc Wagner

  • Affiliations:
  • LFCS, School of Informatics, University of Edinburgh, Edinburgh, U.K.;DFKI GmbH, 28359 Bremen, Germany;DFKI GmbH & FB Informatik, Universitäät Bremen, 28359 Bremen, Germany;DFKI GmbH, 28359 Bremen, Germany & FR Informatik, Universitäät des Saarlandes, 66123 Saarbrücken, Germany

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2009

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Abstract

The PGIP protocol is a standard, abstract interface protocol to connect theorem provers with user interfaces. Interaction in PGIP is based on ASCII-text input and a single focus point-of-control, which indicates a linear position in the input that has been checked thus far. This fits many interactive theorem provers whose interaction model stems from command-line interpreters. Plat@W, on the other hand, is a system with a new protocol tailored to transparently integrate theorem provers into text editors like that support semi-structured XML input files and multiple foci of attention. In this paper we extend the PGIP protocol and middleware broker to support the functionalities provided by Plat@W and beyond. More specifically, we extend PGIP (i) to support multiple foci in provers; (ii) to display semi-structured documents; (iii) to combine prover updates with user edits; (iv) to support context-sensitive service menus, and (v) to allow multiple displays. As well as supporting , the extended PGIP protocol in principle can support other editors such as OpenOffice, Word 2007 and graph viewers; we hope it will also provide guidance for extending provers to handle multiple foci.