umanwizard

umanwizard / optional_capgroup.rs

Last active January 22, 2020 21:42

Visitor to output the list of groups that may not exist in the output

	use regex::Regex;
	use regex_syntax::hir::visit;
	use regex_syntax::hir::Group;
	use regex_syntax::hir::GroupKind;
	use regex_syntax::hir::Hir;
	use regex_syntax::hir::HirKind;
	use regex_syntax::hir::RepetitionKind;
	use regex_syntax::hir::RepetitionRange;
	use regex_syntax::hir::Visitor;