boolean (PsiBuilder b, int l) { if (!recursion_guard_(b, l, "vars")) return false; boolean r; r = variable(b, l + 1); if (!r) r = composed_var(b, l + 1); if (!r) r = command_substitution_command(b, l + 1); if (!r) r = old_arithmetic_expansion(b, l + 1); return r; }