Enum regex_syntax::ast::parse::GroupState

enum GroupState {
    Group {
        concat: Concat,
        group: Group,
        ignore_whitespace: bool,
    },
    Alternation(Alternation),
}

GroupState represents a single stack frame while parsing nested groups and alternations. Each frame records the state up to an opening parenthesis or a alternating bracket |.

Variants

Group

This state is pushed whenever an opening group is found.

Fields

concat: Concat

The concatenation immediately preceding the opening group.

group: Group

The group that has been opened. Its sub-AST is always empty.

ignore_whitespace: bool

Whether this group has the x flag enabled or not.

Alternation(Alternation)

This state is pushed whenever a new alternation branch is found. If an alternation branch is found and this state is at the top of the stack, then this state should be modified to include the new alternation.

Trait Implementations

impl Clone for GroupState

fn clone(&self) -> GroupState

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GroupState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.