Method at_linebreak

crates/sre_engine/src/engine.rs:1127–1129

(&self, req: &Request<'_, S>)

    }

    fn at_linebreak<S: StrDrive>(&self, req: &Request<'_, S>) -> bool {
        !self.at_end(req) && is_linebreak(self.peek_char::<S>())
    }

    fn at_boundary<S: StrDrive, F: FnMut(u32) -> bool>(
        &self,