Parse::Eyapp (Extended yapp) is a collection of modules that extends Francois Desarmenien Parse::Yapp 1.05. Eyapp extends yacc/yapp syntax with functionalities like named attributes, EBNF-like expressions, modifiable default action, grammar reusability, data generation, automatic syntax tree buildin...

Given YACC-like and LEX-like input files, yagg generates a C++ program that generates all strings of a user-specified length. The YACC-like language grammar file provides the grammar productions for string generation, along with optional action blocks that can perform context-sensitive checks in or...

什么是YYParser？ ------------------------------------- YYParser是在Perl的Yapp基础上实现的基于JavaScript的LR(1)文法解析脚本生成器，这样说有一点点绕，但是实际上可以把它简单理解为yacc的Perl/JavaScript混合版，它生成的解释器代码是存JS的，但生成工具是一段Perl脚本。 YYParser的基本原理？ ------------------------------------- 要理解YYParser的工作原理必须要有一点点DFA、LALR(1)、正则表达式方面的知识，如果完全不了解这些，建议...

Jay for C# is the Mono Project's version of Jay. It generates C# based parsers for programming languages.

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Ply is 100% Python implementation of lex and yacc. It provides almost all of the same features as traditional lex/yacc tools including support for LALR(1) parsing, empty productions, ambiguity resolution, and extensive error reporting. code.google is being used for both issue tracking and a subve...

CookCC is a lexer and parser (LALR (1)) generator project, combined. It is written in Java, but the [TargetLanguages target languages] can vary. CookCC comes with two unique features, which were the original motivations for this work. # CookCC uses a unique approach of storing and loading DF...

A parser/lexer generator written in Java. This is a development fork of the well known JavaCC parser generator originally developed at Sun Microsystems.

It is a pascal compiler It takes input a pascal code and gives output a assembly code. The assembly code after compilation and run gives the output of our initial pascal code.

Calculate the first-set, fellow-set, predict-set.