Question

我正在使用Antlrworks2。有词法语法有词法模式＆＃39;在其中定义。我结合语法导入lexer语法。从组合语法生成代码后，它将生成两个.java文件。例如：如果我的组合语法文件名是＆＃39; xyz.g4＆＃39; java文件名是＆＃39; xyzLexer.java＆＃39;，＆＃39; xyzParser.java＆＃39;。但是当我点击“运行TestRig＆＃39;在Antlrworks2中，它将通过控制台中的以下错误。

Compiling grammar files...
warning: Supported source version 'RELEASE_6' from annotation processor 'org.netbeans.modules.openide.modules.PatchedPublicProcessor' less than -source '1.7'
warning: Supported source version 'RELEASE_6' from annotation processor 'org.netbeans.modules.openide.util.ServiceProviderProcessor' less than -source '1.7'
warning: Supported source version 'RELEASE_6' from annotation processor 'org.netbeans.modules.openide.util.NamedServiceProcessor' less than -source '1.7'
warning: Supported source version 'RELEASE_6' from annotation processor 'org.netbeans.modules.openide.util.NbBundleProcessor' less than -source '1.7'
C:\Users\cc91kor\AppData\Local\Temp\TestRigTask-1361256016169\CDFCombinedGrammarLexer.java:144: error: cannot find symbol
        case 1: _mode = INSIDE_BRACKETS;  break;
                        ^
  symbol:   variable INSIDE_BRACKETS
  location: class CDFCombinedGrammarLexer
C:\Users\cc91kor\AppData\Local\Temp\TestRigTask-1361256016169\CDFCombinedGrammarLexer.java:149: error: cannot find symbol
        case 0: _mode = INSIDE_BRACKETS;  break;
                        ^
  symbol:   variable INSIDE_BRACKETS
  location: class CDFCombinedGrammarLexer
2 errors
4 warnings
Arguments: [CDFCombinedGrammar, vt, -tokens, -tree, -gui, C:\Users\cc91kor\Desktop\vt.txt]
Can't load CDFCombinedGrammar as lexer or parser

正如我在CDFCombinedGrammarLexer.java中观察到的那样（在上面的例子中是xyzLexer.java），＆＃39; lexical mode＆＃39;不在场。我可以在java文件中找到由实际词法分析器文件生成的模式代码。

下面是我在实际词法分析器生成的java文件中可以看到的代码。

public static final int INSIDE_BRACKETS = 1;
    public static String[] modeNames = {
        "DEFAULT_MODE", "INSIDE_BRACKETS"
    };

对此有任何帮助???我在等待!!!

提前致谢！

Answer 1

ANTLR 4尚不支持导入多模词法分析器语法。以下问题将跟踪此功能的进度：

Support importing multi-mode lexer grammars

导入语法中的词汇模式未在组合语法中识别。单击“在testRig中运行”Antlrworks2后出现编译错误

1 个答案: