针对虎书（现代编译原理-C语言描述）Tiger Language的词法分析器，包含testcase和reference-A lexical analysis for the tiger language in the tiger book (Modern Compiler Implementation in C), including testcases and references.

针对虎书（现代编译原理-C语言描述）Tiger Language的Straight-Line Program Interpreter，包含testcase-A Straight-Line Program Interpreter for the Tiger Language in the Tiger Book (Modern Compiler Implementation in C) with testcases.