Question

antlr4-maven-plugin似乎不是Antlr4网站上的文档。

Answer 1

这可能对你没有任何影响，就像我做的那样。试试这个：

mvn org.antlr:antlr4-maven-plugin:help -Ddetail=true

产地：

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- antlr4-maven-plugin:4.0:help (default-cli) @ standalone-pom ---
[INFO] ANTLR 4 Maven plugin 4.0
Maven plugin for ANTLR 4 grammars

This plugin has 2 goals:

antlr4:antlr4
Parses ANTLR 4 grammar files *.g4 and transforms them into Java source files.

Available parameters:

arguments
  A list of additional command line arguments to pass to the ANTLR tool.

atn
  If set to true then the ANTLR tool will generate a description of the ATN
  for each rule in Dot format.

encoding
  specify grammar file encoding; e.g., euc-jp

excludes
  A set of Ant-like exclusion patterns used to prevent certain files from
  being processed. By default, this set is empty such that no files are
  excluded.

forceATN
  Use the ATN simulator for all predictions.

includes
  Provides an explicit list of all the grammars that should be included in
  the generate phase of the plugin. Note that the plugin is smart enough to
  realize that imported grammars should be included but not acted upon
  directly by the ANTLR Tool. A set of Ant-like inclusion patterns used to
  select files from the source directory for processing. By default, the
  pattern **/*.g4 is used to select grammar files.

libDirectory
  Specify location of imported grammars and tokens files.

listener
  Generate parse tree listener interface and base class.

options
  A list of grammar options to explicitly specify to the tool. These options
  are passed to the tool using the -D<option>=<value> syntax.

outputDirectory
  Specify output directory where the Java files are generated.

sourceDirectory
  The directory where the ANTLR grammar files (*.g4) are located.

treatWarningsAsErrors
  Treat warnings as errors.

visitor
  Generate parse tree visitor interface and base class.

antlr4:help
Display help information on antlr4-maven-plugin.
Call mvn antlr4:help -Ddetail=true -Dgoal=<goal-name> to display parameter
details.

Available parameters:

detail
  If true, display all settable properties for each goal.

goal
  The name of the goal for which to show help. If unspecified, all goals
  will be displayed.

indentSize
  The number of spaces per indentation level, should be positive.

lineLength
  The maximum length of a display line, should be positive.


[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.635s
[INFO] Finished at: Wed Jul 03 14:52:12 EDT 2013
[INFO] Final Memory: 3M/81M
[INFO] ------------------------------------------------------------------------

Answer 2

以下是两个现在提供帮助的链接：

我们正努力在线托管Maven网站文档。

我将我的语法放在与Java文件相同的文件夹中（在我想要生成代码的包中）。

因为我将源目录声明为顶层，如下所示：

<build>
  <sourceDirectory>src</sourceDirectory>
</build>

我会对ANTLR 4 Maven插件使用以下配置：

<plugin>
    <groupId>org.antlr</groupId>
    <artifactId>antlr4-maven-plugin</artifactId>
    <version>4.0</version>
    <configuration>
        <sourceDirectory>${basedir}/src</sourceDirectory>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>antlr4</goal>
            </goals>
        </execution>
    </executions>
</plugin>

Answer 3

antlr4-maven-plugin有一个帮助目标，可以使用maven执行，如下所示：

mvn antlr4:help -Ddetail=true

Answer 4

帮助有限，但（除了这些问题的其他答案之外）我发现以下地方很有用：

GitHub abntlr4-maven-plugin documentation site（似乎是权威文档并包含示例）
ANTLR4 Wiki - Java IDE Integration（底部的mvn部分有一些基本信息）

Answer 5

您还可以查看following blog，其中介绍了用于生成和测试ANTLR 4语法的插件。

Answer 6

看起来maven插件网站现已发布：

http://www.antlr.org/api/maven-plugin/latest/index.html

我如何获得antlr4-maven-plugin的帮助

6 个答案: