Characters + Mark-up = Z Lexis

  • Authors:
  • Ian Toyn;Susan Stepney

  • Affiliations:
  • -;-

  • Venue:
  • ZB '02 Proceedings of the 2nd International Conference of B and Z Users on Formal Specification and Development in Z and B
  • Year:
  • 2002

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Abstract

The mathematical symbols in Z have caused problems for users and tool builders in the past--precisely what is allowed? ISO Standard Z answers this question. This paper considers the Z notation at the level of the individual characters that make up a specification. For Z authors: it reviews the internationalisation of Z, discusses what characters can be used in forming names, and summarises the changes made to LATEX mark-up in ISO Standard Z. For Z tool builders: it explains the sequence of processing that is prerequisite to the lexing of a Standard Z specification, and considers in detail the processing of LATEX mark-up.