编译原理词法分析+SLR语法分析+SLR语义分析_slr语法分析器设计实验原理资源-CSDN文库

共32个文件

txt：15个

o：4个

cpp：3个

3星 · 超过75%的资源需积分: 11 69 浏览量 2009-05-29 14:09:21 上传评论 7 收藏 227KB RAR 举报

编译原理是计算机科学中的重要领域，主要研究如何将高级编程语言转换为机器可以理解的低级语言。词法分析、SLR语法分析和SLR语义分析是编译器设计与实现的关键步骤，让我们逐一深入探讨这些概念。词法分析（Lexical Analysis）是编译过程的第一步。它将源代码按照字符流进行扫描，识别出有意义的符号单元，即词法单元（Token）。词法单元是程序语言的基本构建块，如关键字、标识符、常量、运算符等。词法分析器通常使用正则表达式来定义不同类型的词法单元，并通过匹配规则将源代码分割成一系列的词法单元序列，为后续的语法分析提供输入。接着，SLR（Simple Left-to-right, Rightmost Derivation）语法分析是一种自底向上的解析方法，主要用于确定性上下文无关文法（DCFG）。SLR分析器的工作原理是构建一个分析表，该表包含每个非终结符在当前输入串前缀下的动作和状态转移。这些动作可以是“接受”、“移进”（读入下一个输入符号）或“归约”（根据产生式减少符号栈）。SLR分析的关键在于避免出现冲突，即在某状态下，针对同一输入符号同时存在移进和归约的操作。如果分析表中存在冲突，那么该文法可能不适合SLR分析。 SLR语义分析（Semantic Analysis）是在语法分析之后进行的，它的目标是确保程序的语义正确。语义分析可以分为两部分：类型检查和语义动作。类型检查主要验证变量和表达式的类型是否符合语法规则，防止类型错误。语义动作则用于执行计算，比如赋值操作、函数调用等，或者生成中间代码。在SLR语义分析中，通常会使用属性文法或者操作符优先级来指导具体的语义处理。在这个实验中，你将学习如何使用SLR方法来实现一个简单的编译器。你需要设计词法分析器，定义各类词法单元的正则表达式并生成词法分析器。然后，你需要构造SLR分析表，解决可能的冲突，实现语法分析。你需要添加语义规则，完成语义分析，确保程序的逻辑正确。通过这个实验，你可以深入理解编译器的工作原理，掌握编译技术的基本流程，并锻炼实际编程能力。如果你在实验过程中遇到任何问题，可以通过邮件zuopengperfect@163.com与作者联系，获取帮助和建议。这是一个很好的机会，不仅能提升你的理论知识，还能锻炼你的实践技能。

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_词法分析_SLR语法分析_SLR语义分析.rar （32个子文件）

编译原理_词法分析_SLR语法分析_SLR语义分析

SLR

Follow.txt 720B

main.cpp 481B

main.c 396B

GotoFuncs.txt 10KB

bin

Debug

SLR.exe 692KB

SLR.layout 749B

归约函数表.txt 825B

SLR_Analyse.cpp 10KB

obj

Debug

SLR.o 32KB

main.o 6KB

Lex.o 14KB

SLR_Analyse.o 167KB

Lex.c 10KB

Digit.txt 21B

StateSets.txt 10KB

1.txt 146B

Identifiers_Table.txt 19B

SLROut.txt 594B

PSets.txt 1KB

SLR.c 20KB

Lex.cpp 9KB

ID.txt 85B

new.txt 293B

SLR.h 676B

SLR.cbp 1KB

Lex.h 1KB

First.txt 700B

TokenTable.txt 291B

SLR_Analyse.txt 164B

SLR_Analyse.h 123B

SLR.depend 1KB

ActionAndGoto.txt 18KB

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