[Japi-cvs] SF.net SVN: japi: [121] trunk/src/doc/guide/io/src/GrepJAPI.java

[<chr...@us...>]

Revision: 121
Author:   christianhujer
Date:     2006-05-27 15:20:42 -0700 (Sat, 27 May 2006)
ViewCVS:  http://svn.sourceforge.net/japi/?rev=121&view=rev

Log Message:
-----------
Improved Grep example.

Modified Paths:
--------------
    trunk/src/doc/guide/io/src/GrepJAPI.java
Modified: trunk/src/doc/guide/io/src/GrepJAPI.java
===================================================================
--- trunk/src/doc/guide/io/src/GrepJAPI.java	2006-05-27 22:20:16 UTC (rev 120)
+++ trunk/src/doc/guide/io/src/GrepJAPI.java	2006-05-27 22:20:42 UTC (rev 121)
@@ -12,34 +12,51 @@
  */
 public class GrepJAPI implements Command {
 
+    /** Whether to display the total line number. */
+    private boolean totalLine;
+
     /** Main program.
      * @param args command line arguments
      */
     public static void main(final String... args) {
-        final GrepJAPI grepJAPI = new GrepJAPI();
-        ArgParser.parse(grepJAPI, args);
+        ArgParser.parse(new GrepJAPI(), args);
     }
 
     /** {@inheritDoc} */
     @SuppressWarnings({"InstanceMethodNamingConvention"})
     public void run(final List<String> args) {
+        int totalLines = 0;
         final String regex = args.remove(0);
         final Pattern pattern = Pattern.compile(regex);
         final Matcher matcher = pattern.matcher("");
         for (final String line : new ARGV(args.toArray(new String[args.size()]))) {
+            totalLines++;
             if (matcher.reset(line).find()) {
-                System.out.println(line);
+                if (totalLine) {
+                    System.out.format("%d:%s%n", totalLines, line);
+                } else {
+                    System.out.format("%s%n", line);
+                }
             }
         }
     }
 
+    /** Print help and quit. */
     @StopOption @Option({"h", "help"})
     public void help() {
-        System.out.println("help");
+        System.out.println("Usage: java GrepJAPI regex [file...]");
     }
 
+    /** Print version and quit. */
     @StopOption @Option({"V", "version"})
     public void version() {
-        System.out.println("The version.");
+        System.out.println("GrepJAPI V 0.1");
     }
+
+    /** Set displaying the total line number. */
+    @Option({"l", "total-line"})
+    public void totalLine() {
+        totalLine = true;
+    }
+
 } // class GrepJAPI


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