//! 解析器配置接口 —— 对应 Java `freemarker.core.ParserConfiguration`
//! (getTagSyntax/getInterpolationSyntax/getNamingConvention/getWhitespaceStripping/
//! getArithmeticEngine/getOutputFormat 等;Rust 由 Settings 承载对应配置项)
/// 对应 Java `ParserConfiguration`(Rust 由 core::Settings 承载解析器配置语义)
#[allow(dead_code)]
pub(crate) struct ParserConfiguration;