用YACC写的语法分析器

pl0编译器-pl0 compiler

在文本下编辑,把需要分析的程序写在zf-infile.txt内，程序的结尾必须以“@”标志符结束，程序结果输出在同目录内，文件名为zf-outfile.txt,此文件为自动生成。 - Edits under the text, the procedure which needs to analyze writes in zf-infile.txt, the procedure ending must the designator end by "@", the procedure result output in with the table of contents in, document named zf-outfile.txt, this document is the automatic production.

输入已经消除左递归的以及提取公共左因子的LL(1)文法，再输入相应的表达式，若分析成功，则在递归输出过程中输出"acc",若不成功，则有相应的报错以及位置指名。注意，要把同一个非终结符的产生式分成单个输入。他会自动计算first,follow,预测分析表的构造，但并不输出。-importation has been eliminated and left recursive public from the left-LL (1) grammar, further importation of the corresponding expression, if the analysis is successful, the output of the recursive process output "belongs", if successful, there were errors and the corresponding location named. Attention, we should end with a non-escalation of production into a single input. He will be automatically calculated first, follow, and predicting and analyzing the table structure, but does not export.

简单的语法分析,递归下降语法分析-simple syntax analysis, recursive grammar analysis drop

avr 程序开发中可以用到BOOTLOADER程序、ISP汇编程序ISP C程序-avr program development process can be used BootLoader, ISP assembler procedures ISP C

这个是计算器的编程源码- This is the calculator programming source code

本程序是用pascal语言编写的编译原理小程序，包括词法分析，语法分析，语意分析，优化及目标代码生成-this procedure is used pascal language compiler principles of small programs, including lexical analysis, grammar analysis, semantic analysis, optimization and object code generation

词法分析，LL1语法分析，语义分析，中间代码生成，中间代码优化（常表达式优化，公共表达式优化，循环不变式优化），中间代码生成目标代码，目标代码的解释执行，详细地阐述了一个编译器的设计和实现.-lexical analysis, LL1 syntax analysis, semantic analysis and code generation and code optimization (regular expression optimization, public expression optimization, optimization loop invariant), intermediate code generated object code, object code to explain the implementation of a detailed exposition of a compiler the design and implementation.

运用expat解析XML文件接口C源代码-Analysis of the use of XML documents expat interface C source code