2007 | OriginalPaper | Chapter
Core Maude Grammar
Authors : Manuel Clavel, Francisco Durán, Steven Eker, Patrick Lincoln, Narciso Martí-Oliet, José Meseguer, Carolyn Talcott
Published in: All About Maude - A High-Performance Logical Framework
Publisher: Springer Berlin Heidelberg
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This chapter describes the syntax of Maude using the following extended BNF notation: the symbols ‘(’ and ‘)’ are used as metaparentheses; the symbol ‘|’ is used to separate alternatives; square bracket pairs, ‘[’ and ‘]’, enclose optional syntax; ‘*’ indicates zero or more repetitions of preceding unit; ‘+’ indicates one or more repetitions of preceding unit; and the string “
x
” denotes
x
literally. As an application of this notation,
A(, A)*
indicates a non-empty list of A’s separated by commas. Finally,
%%%
indicates comments in the syntactic description, as opposed to comments in the Maude code.