Link Search Menu Expand Document


Odinson supports a full range of quantifiers which can be applied to any pattern element (i.e., tokens, graph traversals, or combinations of these).

Quantifier Description Example
? indicates a pattern element is optional >amod?
* matches zero or more of an element []*
+ matches one or more of an element (>amod [])+
{m, n} matches at least m and at most n of an element ยป{2,3}

Odinson also supports both greedy and lazy usage of these quantifiers. For example, [tag=/N.*/]+? will perform lazy (or reluctant) matching of nouns.