java写的词法分析器，写得不好别怪我

编译原理实验之词法分析器，实现对输入的字符或语句进行词法分析器。-Compiler lexical analyzer of principle experiment, the realization of the input of characters or words for lexical analyzer.

自定义简单语法类C语言编译器，具备识别C语言基本语句功能，并生成四元式-Since the definition of simple types of C language syntax compiler, a statement to identify the basic functions of C language and generate quaternion type

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这是一个用来生成表达工的值的程序 它可以输入8进制或十进制的数 建立一棵语法树 并返回表达式的值-This an expression used to generate value for the procedures it can be imported or 8 band of a few decimal establish a syntax tree and return to the value of the expression

test for character recognition sofware

this upload sample-this upload sample................

语义分析的功能： 第一，审查每个语法结构的静态语义，即验证语法结构合法的程序是否真正有意义。有时把这个工作称为静态语义分析或静态审查。第二，如果静态语义正确，语义处理则要执行真正的翻译，即，或者将源程序翻译成程序的一种中间表示形式（中间代码），或者将源程序翻译成目标代码。 有报告-Semantic analysis of the functions: First, review each of the grammatical structure of the static semantics, that is, the grammatical structure to verify whether the procedures legally meaningful. Sometimes this is called static or static semantic analysis review. Secondly, if the correct static semantics, semantic processing should be the implementation of a genuine translation, that is, or will be translated into procedures source an intermediate representation (intermediate code), or source code translated into object code. There are reports

编译原理独立词法分析程序- Translation principle independent lexical analyaer

Java形式文法-BNF.是设计形式文法的好范例。-Java form grammar-BNF. Form design is a good example of grammar.