There are special cross-reference tables for the sorts and the keywords used in the grammar. Summary The number of rules, sorts, top sorts, bottom sorts, lexical sorts and keywords are listed. This information is useful to get an impression on the size and the completeness of the grammar. The terms sorts, top sorts, bottom sorts are explained in some detail below. The actual context-free grammar rules are provided in this section.
Concatenation coincides with juxtaposition.
1 or more repetitions are required. Keywords are enclosed in double quotes. There is one non-standard construct for permutation phrases. All sorts This table enumerates all sorts in alphabetical order. Sorts are usually called nonterminals.