Class Group

regex/regex-syntax/src/ast/mod.rs:1192–1199

/// `(?is:a)`.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Group {
    /// The span of this group.
    pub span: Span,
    /// The kind of this group.
    pub kind: GroupKind,
    /// The regular expression in this group.
    pub ast: Box<Ast>,
}

impl Group {
    /// If this group is non-capturing, then this returns the (possibly empty)