Return-Path: Mailing-List: contact tomcat-dev-help@jakarta.apache.org; run by ezmlm Delivered-To: mailing list tomcat-dev@jakarta.apache.org Received: (qmail 6391 invoked by uid 2016); 24 Nov 1999 20:04:08 -0000 Delivered-To: apcore-jakarta-tools-cvs@apache.org Received: (qmail 6260 invoked by uid 221); 24 Nov 1999 20:04:03 -0000 Date: 24 Nov 1999 20:04:02 -0000 Message-ID: <19991124200402.6259.qmail@hyperreal.org> From: jons@hyperreal.org To: jakarta-tools-cvs@apache.org Subject: cvs commit: jakarta-tools/ant/src/main/org/apache/tools/ant/taskdefs KeySubst.java defaults.properties jons 99/11/24 12:04:01 Modified: ant/src/main/org/apache/tools/ant/taskdefs defaults.properties Added: ant/src/main/org/apache/tools/ant/taskdefs KeySubst.java Log: added keyword substitution feature. ;-) Revision Changes Path 1.6 +2 -1 jakarta-tools/ant/src/main/org/apache/tools/ant/taskdefs/defaults.properties Index: defaults.properties =================================================================== RCS file: /home/cvs/jakarta-tools/ant/src/main/org/apache/tools/ant/taskdefs/defaults.properties,v retrieving revision 1.5 retrieving revision 1.6 diff -u -r1.5 -r1.6 --- defaults.properties 1999/11/24 01:38:50 1.5 +++ defaults.properties 1999/11/24 20:03:58 1.6 @@ -10,4 +10,5 @@ get=org.apache.tools.ant.taskdefs.Get expand=org.apache.tools.ant.taskdefs.Expand echo=org.apache.tools.ant.taskdefs.Echo -javadoc2=org.apache.tools.ant.taskdefs.Javadoc2 \ No newline at end of file +javadoc2=org.apache.tools.ant.taskdefs.Javadoc2 +keysubst=org.apache.tools.ant.taskdefs.KeySubst \ No newline at end of file 1.1 jakarta-tools/ant/src/main/org/apache/tools/ant/taskdefs/KeySubst.java Index: KeySubst.java =================================================================== /* * The Apache Software License, Version 1.1 * * Copyright (c) 1999 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * . */ package org.apache.tools.ant.taskdefs; import org.apache.tools.ant.*; import java.io.*; import java.util.*; /** * Keyword substitution. Input file is written to output file. * Do not make input file same as output file. * Keywords in input files look like this: @foo@. See the docs for the * setKeys method to understand how to do the substitutions. * * @author Jon S. Stevens jon@clearink.com */ public class KeySubst extends Task { private File source; // required private File dest; // required private String sep = "*"; private static String delim = "@"; private Hashtable replacements = new Hashtable(); /** Do the execution. */ public void execute() throws BuildException { project.log("Performing Substitions"); if ( source == null || dest == null ) { project.log("Source and destinations must not be null"); return; } BufferedReader br = null; BufferedWriter bw = null; try { br = new BufferedReader(new FileReader(source)); bw = new BufferedWriter(new FileWriter(dest)); String line = null; String newline = null; int length; line = br.readLine(); while (line != null) { newline = replace ( line, replacements ); bw.write ( newline ); bw.newLine(); line = br.readLine(); } bw.flush(); bw.close(); br.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } /** Set the source file. */ public void setSrc(String s) { this.source=project.resolveFile(s); } /** Set the destination file. */ public void setDest(String dest) { this.dest = project.resolveFile(dest); } /** Sets the seperator between name=value arguments in setKeys(). By default it is "*". */ public void setSep(String sep) { this.sep = sep; } /** Sets the deliminator characters that go around the keywords. Ie: @foo@. The "@" in this case is the deliminator. It is also the default. */ public void setDelim(String delim) { this.delim = delim; } /** Format string is like this:

name=value*name2=value

Names are case sensitive.

Use the setSep() method to change the * to something else if you need to use * as a name or value. */ public void setKeys(String keys) { if (keys != null && keys.length() > 0) { StringTokenizer tok = new StringTokenizer(keys, this.sep, false); while (tok.hasMoreTokens()) { String token = tok.nextToken().trim(); StringTokenizer itok = new StringTokenizer(token, "=", false); String name = itok.nextToken(); String value = itok.nextToken(); // System.out.println ( "KeySubst Name: " + name ); // System.out.println ( "KeySubst Value: " + value ); replacements.put ( name, value ); } } } /* public static void main(String[] args) { try{ Hashtable hash = new Hashtable(); hash.put ( "w", "yoaaaau" ); hash.put ( "a", "ffff" ); System.out.println ( KeySubst.replace ( "f @w@ - @a@ are", hash ) ); }catch ( Exception e) { e.printStackTrace(); } } */ /** Does replacement on text using the hashtable of keys. This could probably be done a lot better, but for now it does the job and this isn't a time criticial application. @returns the string with the replacements in it. */ public static String replace ( String text, Hashtable keys ) throws BuildException { StringBuffer sb=new StringBuffer(); int i=0; int prev=0; int pos=0; while( (pos=text.indexOf( delim, prev )) >= 0 ) { if(pos>0) sb.append( text.substring( prev, pos ) ); pos++; int endName=text.indexOf( delim, pos ); String n=text.substring( pos, endName ); if ( keys.containsKey( n ) ) { sb.append ( (String) keys.get(n) ); sb.append ( text.charAt( pos + n.length() + 1 ) ); prev=pos + n.length() + 2; } else { sb.append ( delim + n + delim); prev=endName + 1; } } if( prev < text.length() ) sb.append( text.substring( prev ) ); return sb.toString(); } }