Gallery / EBNF

Recursive nested lists

Family: EBNF. Status: Implemented.

Recursive references describe nested list syntax.

Scope: Grammar structure and bounded exploration only. Parse evidence requires an external engine.

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Source

ebnf-recursive-list.puml

text/plain

@startebnf
title Nested lists
list = "[", [ item, { ",", item } ], "]";
item = word | list;
word = letter, { letter };
letter = ? alphabetic ?;
@endebnf

Download source: ebnf-recursive-list.puml

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