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1 /*
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2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
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3
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software, and to permit persons to whom the Software is
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9 furnished to do so, subject to the following conditions:
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10
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11 The above copyright notice and this permission notice shall be included in
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12 all copies or substantial portions of the Software.
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13
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14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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20 THE SOFTWARE.
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21 */
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22
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23 package fschmidt.tools;
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24
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25 import java.io.InputStreamReader;
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26 import java.io.File;
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27 import java.util.regex.Pattern;
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28 import java.util.regex.Matcher;
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29 import fschmidt.util.java.IoUtils;
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30
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31
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32 public final class Replace {
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33 public static void main(String args[]) throws Exception {
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34 if( args.length==0 ) {
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35 System.err.println("usage:\njava fschmidt.tools.Replace [pattern] [files...] <<end\n[replacement_text]\nend");
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36 return;
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37 }
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38 Pattern ptn = Pattern.compile(args[0]);
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39 String replacement = IoUtils.readAll(new InputStreamReader(System.in));
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40 for( int i=1; i<args.length; i++ ) {
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41 File file = new File(args[i]);
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42 String content = IoUtils.read(file);
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43 Matcher m = ptn.matcher(content);
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44 if( m.find() ) {
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45 System.out.println("replacing "+file);
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46 content = content.substring(0,m.start(1)) + replacement + content.substring(m.end(1));
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47 IoUtils.write(file,content);
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48 }
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49 }
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50 }
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51 }
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