org.luaj.vm2.lib.jse
Class JseIoLib

java.lang.Object
  IoLib
      org.luaj.vm2.lib.jse.JseIoLib

public class JseIoLib
extends IoLib

Subclass of IoLib and therefore LibFunction which implements the lua standard io library for the JSE platform.

It uses RandomAccessFile to implement seek on files.

Typically, this library is included as part of a call to JsePlatform.standardGlobals()

 Globals globals = JsePlatform.standardGlobals();
 globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
  

For special cases where the smallest possible footprint is desired, a minimal set of libraries could be loaded directly via Globals#load(LuaValue) using code such as:

 Globals globals = new Globals();
 globals.load(new JseBaseLib());
 globals.load(new PackageLib());
 globals.load(new JseIoLib());
 globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
  

However, other libraries such as MathLib are not loaded in this case.

This has been implemented to match as closely as possible the behavior in the corresponding library in C.

See Also:

LibFunction, JsePlatform, org.luaj.vm2.lib.jme.JmePlatform, IoLib, JmeIoLib, Lua 5.2 I/O Lib Reference

Constructor Summary

JseIoLib()

Method Summary

protected File	openFile(java.lang.String filename, boolean readMode, boolean appendMode, boolean updateMode, boolean binaryMode)
protected File	openProgram(java.lang.String prog, java.lang.String mode)
protected File	tmpFile()
protected File	wrapStderr()
protected File	wrapStdin()
protected File	wrapStdout()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JseIoLib

public JseIoLib()

Method Detail

wrapStdin

protected File wrapStdin()
                  throws java.io.IOException

Throws:

java.io.IOException

wrapStdout

protected File wrapStdout()
                   throws java.io.IOException

Throws:

java.io.IOException

wrapStderr

protected File wrapStderr()
                   throws java.io.IOException

Throws:

java.io.IOException

openFile

protected File openFile(java.lang.String filename,
                        boolean readMode,
                        boolean appendMode,
                        boolean updateMode,
                        boolean binaryMode)
                 throws java.io.IOException

Throws:

java.io.IOException

openProgram

protected File openProgram(java.lang.String prog,
                           java.lang.String mode)
                    throws java.io.IOException

Throws:

java.io.IOException

tmpFile

protected File tmpFile()
                throws java.io.IOException

Throws:

java.io.IOException