pub fn sequence(items: Vec<GrammarExpr>) -> GrammarExprExpand description
Flattens nested sequences and drops empty items, as the JavaScript
sequence builder does: no items build GrammarExpr::Empty and one item
builds itself.
pub fn sequence(items: Vec<GrammarExpr>) -> GrammarExprFlattens nested sequences and drops empty items, as the JavaScript
sequence builder does: no items build GrammarExpr::Empty and one item
builds itself.