org.apache.regexp
Class recompile

java.lang.Object
  |
  +--org.apache.regexp.recompile

public class recompile
extends java.lang.Object

'recompile' is a command line tool that pre-compiles one or more regular expressions for use with the regular expression matcher class 'RE'. For example, the command java org.apache.regexp.recompile re1 "a*b" produces output like this:


    // Pre-compiled regular expression 'a*b'
    private static final char[] re1Instructions =
    {
        0x002a, 0x0000, 0x0007, 0x0041, 0x0001, 0xfffd, 0x0061,
        0x0041, 0x0001, 0x0004, 0x0062, 0x0045, 0x0000, 0x0000,
    };

    private static final REProgram re1 = new REProgram(re1Instructions);

 
By pasting this output into your code, you can construct a regular expression matcher (RE) object directly from the pre-compiled data (the character array re1), thus avoiding the overhead of compiling the expression at runtime. For example:

    RE r = new RE(re1);

 

Version:
$Id: recompile.java 518156 2007-03-14 14:31:26Z vgritsenko $
Author:
Jonathan Locke
See Also:
RE, RECompiler

Constructor Summary
recompile()
           
 
Method Summary
static void main(java.lang.String[] arg)
          Main application entrypoint.
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait
 

Constructor Detail

recompile

public recompile()
Method Detail

main

public static void main(java.lang.String[] arg)
Main application entrypoint.
Parameters:
arg - Command line arguments


Copyright © 2001-2007 Apache Software Foundation. All Rights Reserved.