java写的PLO词法分析,刚交了作业 没什么大内容,仅供参考

词法分析器-lexical analyzer

专门用来包装virtools文件的另一款工具,很好用的-Dedicated to packaging virtools file another tool, a very good use

这是一个编译递归子程序，通过输入语句可以判断是否由指定文法推出-This is a recursive routines compiled by the input to determine whether statements can be specified by the grammar launched

词法分析器 对输入的程序进行分析，将关键字，保留字与系统标识符分开，并对其属性进行说明。 建立数组，将单词读入，对单词的ASCII码进行判断，将在ASCII码值在一定区间进行区分（使用if语句来判断），分开来后，对其所在ASCII值区间的不同，给予以不同的属性(比如：系统保留字…），词法分析器完成后要能识别+,-,=等字符。-lexical analyzer on the importation procedures for analysis, keyword, the word reservation system with separate identifier, and a description of their attributes. The establishment of an array, you read the word, the right word ASCII judgment, in ASCII value in a certain area and distinguish between (use to determine if statements), separately, its value lies ASCII range of different, to give a different properties (such as : system retain the word ...), after the completion of a lexical analyzer to identify,-, =, etc. characters.

VC实现对word文档的操作，在6.0下编译通过-VC realize the operation of the word document, in the 6.0 compiler through

语法分析的功能： 语法分析是编译过程的核心部分，它的主要任务是按照和程序语言的语法规则，从由词法分析输出的源程序符号串中识别出各类语法分析成分，同时进行语法检查，为语义分析和代码生成作准备。 有报告-Parsing functions: syntax analysis is the core of the compiler process, its main tasks and procedures in accordance with the grammatical rules of language, from the output by the lexical analysis of source symbols to identify all types of string parsing components, at the same time syntax checker for semantic analysis and code generation to make preparations. There are reports

一个子集的词法分析器。输入程序，输出TOKEN串各符号表，并存入文件。-A accidence analyzer of subset. which can inpute TOKEN cluster and save if you inpute program

binary operator overloading in c-binary operator overloading in c++

脚本处理控件源码,支持的脚本格式有:Pascal,C++,JScript,Basic- Script processing controls the source code, supports the script form includes: Pascal, C, JScript, Basic

清华教材后面的pl0程序，这个是用c++写的 附带说明和设计文档- Behind the Qinghua teaching material pl0 procedure, this is the supplementary which writes with c explained and designs the documents