C51编译器的一些优化设置资料，对初学者有些帮助，分享了给大家愿共同进步！...

拿出这个程序来主要是因为原文中只有一个LEX程序,- Puts out this procedure to come mainly is because in the original text only has a LEX procedure,

词法分析程序。用于词法分析器的制作与应用。-lexical analysis procedure. Lexical analyzer for the production and application.

现将本人搜集常用的程序设计语言的词法和形式文法提供给大家。其中，词法是按LEX格式编辑，形式文法是按YACC格式书写，大家可直接用LEX和YACC工具编译生成各类程序设计语言的分析器。-commonly used programming language syntax and grammar forms to the public. Among them, morphology is based on LEX format editing, grammar form is written by YACC format, we can use the LEX and YACC tools various compiler generation programming language analyzer.

一个使用flex和bison的小例子-use of a flex and bison small examples

词法分析，语法分析，以及中间代码生成　 布尔表达式转换为逆波兰式 -lexical analysis, parsing, and the intermediate code generated Boolean expressions into reverse Polish notation

Open Watcom 的 C 编译器源代码，别的就不说了- Open Source Watom C Complier Package.the Complier support IA32,etc. To kown the detail,Please view the Package.

编译的作业，对词法的分析分类以及发现错误，希望与大家交流，谢谢指教-Task of Compiler Implementation,To analyse and find error of Lexical,wish to communication with you,thanks.

词法分析程序，可对以下的C源程序进行分析：main() {int a[12] ,sum for(i=1 i=1 j--){ if(i==j&&i+j==13)sum+=a[i][j] } } printf("%c",sum) }-lexical analysis procedures, right below the C source code analysis : main () (int a [12] [12], the sum for (i = 1 ilt; I = 12) (for (j = 1 JLT; J = 12) Scanf ( "% d", a [i] [j])) for (i = 12 IGT; a = i--) (for (j = 12 IGT; = 1 j--) (if (i == ji j == 13) sum = a [i] [j])) printf ( "% c", sum

一个Pascal子集语言的编译器，将pascal子集语言的源程序存成source.txt文件，经过编译器的处理得到C++语言的code.cpp文件。-Subset of a Pascal language compiler, a subset of the pascal language source.txt Save as source files, compiler after treatment has been C++ Language code.cpp document.