Implement . (period) command for repeating commands.

1 files changed, 20 insertions, 3 deletions

diff --git a/pw.c b/pw.c
index 307863f..7ceb695 100644
--- a/pw.c
+++ b/pw.c
@@ -1036,7 +1036,7 @@ int main(int argc, char **argv)
 
   for (int kbd_state = kbd_cmd, kbd_prev = kbd_cmd, lasttime = -1,
        workbout = workmax, work = workbout, histpos = 0,
-       cmdcount = INT_MAX;
+       cmdcount = INT_MAX, prevcmd = 0, prevcount = 0;
        kbd_state != kbd_exit ;)
   {
     int force = 0, nfds = 2, pollms = poll_interval;
@@ -1419,6 +1419,13 @@ int main(int argc, char **argv)
             pw.curcmd = pw.cmdbuf;
             kbd_state = kbd_result;
             break;
+          case '.':
+            if (prevcmd) {
+              ch = prevcmd;
+              cmdcount = prevcount;
+              goto fakecmd;
+            }
+            break;
           case '0':
             if (cmdcount == INT_MAX) {
               pw.hpos = 0;
@@ -1431,10 +1438,19 @@ int main(int argc, char **argv)
               if (cmdcount == INT_MAX)
                 cmdcount = 0;
               cmdcount = (cmdcount * 10 + (ch - '0')) % 1000;
+              break;
             }
+            ch = 0;
+            break;
+          }
+          if (!isdigit(ch)) {
+            if (ch && ch != '.') {
+              prevcmd = ch;
+              prevcount = cmdcount;
+            }
+            if (kbd_state == kbd_cmd)
+              cmdcount = INT_MAX;
           }
-          if (kbd_state == kbd_cmd && !isdigit(ch))
-            cmdcount = INT_MAX;
           break;
         case kbd_esc:
           if (ch == '[') {
@@ -1558,6 +1574,7 @@ int main(int argc, char **argv)
             kbd_state = kbd_cmd;
             pw.curcmd = 0;
             cmdcount = INT_MAX;
+            prevcmd = 0;
             break;
           case BS: case DEL:
             {