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swh/web/tests/resources/contents/code/extensions/test.bnf
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<syntax> ::= <rule> | <rule> <syntax> | |||||
<rule> ::= <opt-whitespace> "<" <rule-name> ">" <opt-whitespace> "::=" <opt-whitespace> <expression> <line-end> | |||||
<opt-whitespace> ::= " " <opt-whitespace> | "" | |||||
<expression> ::= <list> | <list> <opt-whitespace> "|" <opt-whitespace> <expression> | |||||
<line-end> ::= <opt-whitespace> <EOL> | <line-end> <line-end> | |||||
<list> ::= <term> | <term> <opt-whitespace> <list> | |||||
<term> ::= <literal> | "<" <rule-name> ">" | |||||
<literal> ::= '"' <text> '"' | "'" <text> "'" |