directRecursion {xegaBNF} | R Documentation |
Which production rules contain a direct recursion?
Description
Which production rules contain a direct recursion?
Usage
directRecursion(G)
Arguments
G |
A compiled context-free grammar. |
Details
Direct recursion means the nonterminal on the LHS is also a symbol on RHS of production rule.
Value
Vector of booleans.
See Also
Other Compilation of short production table:
allTerminal()
,
cL()
,
expandGrid()
,
expandRules()
,
findNextRuleForExpansion()
,
finiteRulesOfG()
,
nonTerminalsOfG()
,
smallestRules()
Examples
g<-compileBNF(booleanGrammar())
directRecursion(g)
[Package xegaBNF version 1.0.0.5 Index]