Gramur/net.archandle.gramur.parser/RuleBuilder/zeroOrOne

zeroOrOne

fun zeroOrOne(pattern: RuleBuilder<*>.() -> Unit): RuleBuilder<N>

Adds an OptionalElement (matches 0 or 1 times).

This is an alias for option.

Return

this RuleBuilder for chaining

Parameters

pattern

A lambda defining the optional element(s)