X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/ca5ae3e652ed0fb43efaabd697162fd1c28d09ba..ef1ba39e8dae81091b6c3e73e72825ef6edea3c6:/uip/pick.c?ds=sidebyside

diff --git a/uip/pick.c b/uip/pick.c
index d29799b7..9b2e0cde 100644
--- a/uip/pick.c
+++ b/uip/pick.c
@@ -13,6 +13,7 @@
 #include <h/utils.h>
 
 #define PICK_SWITCHES \
+    X("reverse", 0, REVSW) \
     X("and", 0, ANDSW) \
     X("or", 0, ORSW) \
     X("not", 0, NOTSW) \
@@ -65,8 +66,10 @@ main (int argc, char **argv)
     struct msgs_array msgs = { 0, 0, NULL };
     struct msgnum_array nums = { 0, 0, NULL };
     struct msgs *mp, *mp2;
-    register FILE *fp;
+    FILE *fp;
     int debug = 0;
+    int reverse = 0;
+    int start, end, inc;
 
     if (nmh_init(argv[0], 1)) { return 1; }
 
@@ -104,6 +107,10 @@ main (int argc, char **argv)
 		listsw = 0;	/* HACK */
 		done (0);
 
+            case REVSW:
+                reverse = 1;
+                continue;
+
 	    case CCSW: 
 	    case DATESW: 
 	    case FROMSW: 
@@ -231,7 +238,16 @@ main (int argc, char **argv)
      * match.  If there is NOT a match, then add it to a list to
      * remove from the final sequence (it will make sense later)
      */
-    for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
+    if (!reverse) { /* Overflow or underflow is fine. */
+        start = mp->lowsel;
+        end = mp->hghsel + 1;
+        inc = 1;
+    } else {
+        start = mp->hghsel;
+        end = mp->lowsel - 1;
+        inc = -1;
+    }
+    for (msgnum = start; msgnum != end; msgnum += inc) {
 	if (is_selected (mp, msgnum)) {
 	    if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 		admonish (cp, "unable to read message");