一个FREE编译器原码，用于学习LEX和YA- A FREE compiler original code, uses in to study LEX and YA

Cpress 68013A is the best one -Cypress 68013a appliaction example

附录A S语言说明 A．1 字符集的定义 3数据类型定义-language A. A definition of the character set of data type definition

LL(1)文法使用的是确定的自顶向下的分析技术。LL(1)的含义是：第一个L表明自顶向下分析是从左向右扫描输入串，第2个L表明分析过程中将使用最左推导，1表明只需向右看一个符号便可决定如何推导，即选择哪个产生式(规则)进行推导。 LL(1)文法的判别需要依次计算FIRST集、FOLLOW集和SELLECT集,然后判断是否为LL(1)文法,最后再进行句子分析。 -LL (1) grammar using a set top-down analysis techniques. LL (1) the meaning is: the first one L shows a top-down analysis is a scan input string from left to right, the first two L shows the analysis process will be the most left-derivation, one that will be just right to see a sign can decide how to derive, choose what Production (rules) for derivation. LL (1) grammar, followed by calculation of the discriminant needs FIRST sets, FOLLOW sets and SELLECT set, and then determine whether to LL (1) grammar, the last sentence further analysis.

C编译器,在VC6.0环境下开发，是C的一个简单编译器，但可以运行任何C程序，可以函数嵌套-C compiler, the environment VC6.0 development is a simple C compiler, But can run any C program can be nested function

一个汇编语言编译器源码- A assembly language compiler source code

DOS-intel平台的C编译器以及z80平台的C编译器。自己人写的。还不错啊。可以用之！-DOS-intel platform C compiler and the Z80 platform C compiler. Own writing.错啊not. Can be used!

一个类似于写字板的程序- Is similar to writes the board the procedure

一个类c++语言解释器，由一位国外c++大师所作，喜欢脚本脚本语言的可以-a Class C language interpreter, by a master of his foreign c, like the script scripting language can s

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