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  • Abstract-syntax

Rule

Fixtype of rules.

This is a product type introduced by fty::defprod.

Fields
name — rulename
incremental — booleanp
definiens — alternation

In the abstract syntax, we formalize a rule as consisting of a rule name, an indication of whether the rule provides incremental alternatives [RFC:3.3], and an alternation that defines the rule. This corresponds to rule rule in [RFC:4], abstracting away comments and blank space.

Subtopics

Rule-fix
Fixing function for rule structures.
Rulep
Recognizer for rule structures.
Rule-equiv
Basic equivalence relation for rule structures.
Make-rule
Basic constructor macro for rule structures.
Rule->incremental
Get the incremental field from a rule.
Change-rule
Modifying constructor for rule structures.
Rule->definiens
Get the definiens field from a rule.
Rule->name
Get the name field from a rule.