Add command to repeat last command.

1 files changed, 10 insertions, 1 deletions

diff --git a/src/main/TweetShell.java b/src/main/TweetShell.java
index 231007f..354bdf9 100644
--- a/src/main/TweetShell.java
+++ b/src/main/TweetShell.java
@@ -126,15 +126,24 @@ public class TweetShell implements TwitterApi.PinSupplier {
      */
     public void process_forever() {
         System.err.println("Entering interactive shell, type 'help' for help "
-                + "or 'exit' to leave.");
+                + "or 'exit' to leave. '.' repeats the previous interactive "
+                + "command.");
         // print prompt for reading first command
         printPrompt();
+        String lastLine = "";
         while (scanner.hasNextLine()) {
             String line = scanner.nextLine().trim();
+            // repeat last command
+            if (line.equals(".")) {
+                line = lastLine;
+            }
             if (!execute(line)) {
                 // requested to terminate
                 break;
             }
+            if (!line.isEmpty()) {
+                lastLine = line;
+            }
             // print prompt for reading next line
             printPrompt();
         }