itis a program to solve the lexical expressions .its efficeincy is very good in...

一般的FOrtran程序编译器只能检查一般的错误，而这个软件可以起到一般编译器不能起到的错误检查、程序优化作用。-Ftnchek (short for Fortran checker) is designed to detect certain errors in a Fortran program that a compiler usually does not. Ftnchek is not primarily intended to detect syntax errors. Its purpose is to assist the user in finding semantic errors. Semantic errors are legal in the Fortran language but are wasteful or may cause incorrect operation. For example, variables which are never used may indicate some omission in the program uninitialized variables contain garbage which may cause incorrect results to be calculated and variables which are not declared may not have the intended type. Ftnchek is written in C. To build ftnchek, you must have a C compiler for the machine on which you wish to build it. The URL for ftnchek s home page is http://www.dsm.fordham.edu/~ftnchek. Source code, binary executables for some platforms, and other information are available there.

1．词法分析 设计、编制并调试该C语言子集的词法分析程序，要求结果以二元组形式保存在文件中。-1. Lexical analysis design, develop and debug the C language subset of the lexical analysis procedure that requires results to binary form group to preserve the documents.

C语言编写的简单计算程序的语法分析器，可以识别一定的计算功能-C language prepared by the simple calculation procedure syntax analyzer can identify certain computing capabilities

LL(1)的语法分析器，VC6.0编译器通过，输入输出的文件名详见代码，输出文件中的分析过程和编译原理课本要求类似，根据不同的句子可能需要重新调整对齐格式-A LL(1) parser, built by MS VC 6.0, an assignment of my Complier Principles course

一个GNU的C语言编译器源代码,源代码过万行.- A GNU C language compiler source code, source code ten thousand lines

一个小巧而且实现很完整的JAVA虚拟机-achieve a compact but complete Java Virtual Machine

编译原理词法分析的一个小代码-compiler theory lexical analysis of a small code

哈工大，编译原理课程设计，简单的编译器~-HIT, compile the principle of curriculum design, the compiler simple ~

windowns 环境的lex和yacc编译器工具-windowns environment lex and yacc compiler tool

词法分析器生成工具，用Turbo C v2.0编译生成的-lexical analyzer generation tool, Turbo C compiler generated v2.0