正在分析eclipse中的parser和g文件

打算编一个perl 语言的扩展.

所以,初步找了一些资源.

这里记录一下.

eclipse 的epic的org.epic.perleditor

中,

org.epic.core.parser

目录下,有许多.g文件,其中一个就是

perl.g

在文件中查找,只找java文件,

// $ANTLR : "perl.g" -> "PerlLexer.java"$// This source file was generated by ANTLR. Do not edit manually!package org.epic.core.parser;import java.io.InputStream;

// $ANTLR : "perl.g" -> "PerlLexer.java"$// This source file was generated by ANTLR. Do not edit manually!package org.epic.core.parser;public interface PerlTokenTypes {

因为perl.g最开始是这样写的

header
{
// This source file was generated by ANTLR. Do not edit manually!
package org.epic.core.parser;
}

看到这,我对ANTLR的java实现,有些看法.不是很喜欢.

一看就知道不好跟踪.

另外,好象eclipse是用这个东西来编译.g文件的.

JDT Core / HowTo: Generate the ParserWhere to get the parser generatorThe parser files and resources are automatically generated using the Jikespg parser generator. This tools hasbeen renamed Jikes Parser generator. You can find more information and latest releases at this link.The latest tool is provided in source format. We don't provide any help for compiling thesesource files. Refer to the link above if you have trouble to get binaries. Our grammar is generated using the version 1.3 of Jikespg. If newer versions fail to generate resources from ourgrammar, please send request to the Jikes Parser Generator team.

还是喜欢lex&yacc,见很久前我写的例子:

http://download.csdn.net/detail/haoyujie/778790

http://download.csdn.net/detail/haoyujie/778806

自己还是对lex&yacc在中国的发展做出了贡献的.