--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fschmidt/tools/Replace.java	Sun Oct 05 17:24:15 2025 -0600
@@ -0,0 +1,51 @@
+/*
+Copyright (c) 2008  Franklin Schmidt <fschmidt@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+package fschmidt.tools;
+
+import java.io.InputStreamReader;
+import java.io.File;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import fschmidt.util.java.IoUtils;
+
+
+public final class Replace {
+	public static void main(String args[]) throws Exception {
+		if( args.length==0 ) {
+			System.err.println("usage:\njava fschmidt.tools.Replace [pattern] [files...] <<end\n[replacement_text]\nend");
+			return;
+		}
+		Pattern ptn = Pattern.compile(args[0]);
+		String replacement = IoUtils.readAll(new InputStreamReader(System.in));
+		for( int i=1; i<args.length; i++ ) {
+			File file = new File(args[i]);
+			String content = IoUtils.read(file);
+			Matcher m = ptn.matcher(content);
+			if( m.find() ) {
+				System.out.println("replacing "+file);
+				content = content.substring(0,m.start(1)) + replacement + content.substring(m.end(1));
+				IoUtils.write(file,content);
+			}
+		}
+	}
+}