## org.apache.tools.ant.taskdefs.optional
Class ANTLR

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.tools.ant.taskdefs.optional.ANTLR

All Implemented Interfaces:
  java.lang.Cloneable

    public class ANTLR

extends Task

Invokes the ANTLR Translator generator on a grammar file.

Field Summary

Fields inherited from class org.apache.tools.ant.Task
`target, taskName, taskType, wrapper`

Fields inherited from class org.apache.tools.ant.ProjectComponent
`description, location, project`

Constructor Summary
`ANTLR()` Constructor for ANTLR task.

Method Summary
`protected void` `addClasspathEntry(java.lang.String resource)` Search for the given resource and add the directory or archive that contains it to the classpath.
`Path` `createClasspath()` Adds a classpath to be set because a directory might be given for Antlr debug.
`Commandline.Argument` `createJvmarg()` Adds a new JVM argument.
`void` `execute()` Execute the task.
`void` `init()` Adds the jars or directories containing Antlr this should make the forked JVM work without having to specify it directly.
`protected boolean` `is272()` Whether the antlr version is 2.7.2 (or higher).
`void` `setDebug(boolean enable)` Sets a flag to enable ParseView debugging
`void` `setDiagnostic(boolean enable)` Sets a flag to emit diagnostic text
`void` `setDir(java.io.File d)` The working directory of the process
`void` `setFork(boolean s)`
`void` `setGlib(java.io.File superGrammar)` Sets an optional super grammar file
`void` `setGlib(java.lang.String superGrammar)` Deprecated. since ant 1.6
`void` `setHtml(boolean enable)` If true, emit html
`void` `setOutputdirectory(java.io.File outputDirectory)` The directory to write the generated files to.
`void` `setTarget(java.io.File target)` The grammar file to process.
`void` `setTrace(boolean enable)` If true, enables all tracing.
`void` `setTraceLexer(boolean enable)` If true, enables lexer tracing.
`void` `setTraceParser(boolean enable)` If true, enables parser tracing.
`void` `setTraceTreeWalker(boolean enable)` Sets a flag to allow the user to enable tree walker tracing

Methods inherited from class org.apache.tools.ant.Task
`bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ANTLR

    public ANTLR()

  Constructor for ANTLR task.

Method Detail

### setTarget

    public void setTarget(java.io.File target)

  The grammar file to process.

  Parameters:
    `target` - the gramer file

### setOutputdirectory

    public void setOutputdirectory(java.io.File outputDirectory)

  The directory to write the generated files to.

  Parameters:
    `outputDirectory` - the output directory

### setGlib

    public void setGlib(java.lang.String superGrammar)

  Deprecated. since ant 1.6

  Sets an optional super grammar file. Use setGlib(File superGrammar) instead.

  Parameters:
    `superGrammar` - the super grammar filename

### setGlib

    public void setGlib(java.io.File superGrammar)

  Sets an optional super grammar file

  Parameters:
    `superGrammar` - the super grammar file
  Since:
    ant 1.6

### setDebug

    public void setDebug(boolean enable)

  Sets a flag to enable ParseView debugging

  Parameters:
    `enable` - a `boolean` value

### setHtml

    public void setHtml(boolean enable)

  If true, emit html

  Parameters:
    `enable` - a `boolean` value

### setDiagnostic

    public void setDiagnostic(boolean enable)

  Sets a flag to emit diagnostic text

  Parameters:
    `enable` - a `boolean` value

### setTrace

    public void setTrace(boolean enable)

  If true, enables all tracing.

  Parameters:
    `enable` - a `boolean` value

### setTraceParser

    public void setTraceParser(boolean enable)

  If true, enables parser tracing.

  Parameters:
    `enable` - a `boolean` value

### setTraceLexer

    public void setTraceLexer(boolean enable)

  If true, enables lexer tracing.

  Parameters:
    `enable` - a `boolean` value

### setTraceTreeWalker

    public void setTraceTreeWalker(boolean enable)

  Sets a flag to allow the user to enable tree walker tracing

  Parameters:
    `enable` - a `boolean` value

### setFork

    public void setFork(boolean s)

  Parameters:
    `s` - a `boolean` value

### setDir

    public void setDir(java.io.File d)

  The working directory of the process

  Parameters:
    `d` - the working directory

### createClasspath

    public Path createClasspath()

  Adds a classpath to be set because a directory might be given for Antlr debug.

  Returns:
    a path to be configured

### createJvmarg

    public Commandline.Argument createJvmarg()

  Adds a new JVM argument.

  Returns:
    create a new JVM argument so that any argument can be passed to the JVM.
  See Also:
    `setFork(boolean)`

### init

    public void init()
              throws BuildException

  Adds the jars or directories containing Antlr this should make the forked JVM work without having to specify it directly.

  Overrides:
    `init` in class `Task`
  Throws:
    `BuildException` - on error

### addClasspathEntry

    protected void addClasspathEntry(java.lang.String resource)

  Search for the given resource and add the directory or archive that contains it to the classpath.

  Doesn't work for archives in JDK 1.1 as the URL returned by getResource doesn't contain the name of the archive.

  Parameters:
    `resource` - the resource name to search for

### execute

    public void execute()
                 throws BuildException

  Execute the task.

  Overrides:
    `execute` in class `Task`
  Throws:
    `BuildException` - on error

### is272

    protected boolean is272()

  Whether the antlr version is 2.7.2 (or higher).

  Returns:
    true if the version of Antlr present is 2.7.2 or later.
  Since:
    Ant 1.6