fila-lang：Filament编程语言

这是实现Filament语言的解析器和运行时库。 与安装 npm install --save filament-lang 评估代码： //read the source grammar first let grammar_source = ( await fs . readFile ( 'node_modules/filament-lang/src/filament.ohm' ) ) . toString ( ) ; await setup_parser ( grammar_source ) let ret = await eval_code ( '42ft' ) console . log ( "we should have a scalar with 42 and feet for the unit:" , ret ) 产生值为42英尺的标量对象 ( ret . value