X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/6b4bc4a25eaac2eddd1bef51e3f00c21f98ed32d..3c5fba356eb42adf87e7d6e8728c55dd4fcd658f:/uip/pick.c?ds=inline

diff --git a/uip/pick.c b/uip/pick.c
index 281a1ac7..fba190a2 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) \
@@ -36,6 +37,7 @@
     X("nozero", 0, NZEROSW) \
     X("list", 0, LISTSW) \
     X("nolist", 0, NLISTSW) \
+    X("debug", 0, DEBUGSW) \
     X("version", 0, VERSIONSW) \
     X("help", 0, HELPSW) \
 
@@ -56,23 +58,25 @@ main (int argc, char **argv)
 {
     int publicsw = -1, zerosw = 1, vecp = 0;
     size_t seqp = 0;
-    int lo, hi, msgnum;
+    int msgnum;
     char *maildir, *folder = NULL, buf[100];
     char *cp, **argp, **arguments;
-    char *seqs[NUMATTRS + 1], *vec[MAXARGS];
+    svector_t seqs = svector_create (0);
+    char *vec[MAXARGS];
     struct msgs_array msgs = { 0, 0, NULL };
-    struct msgs *mp;
+    struct msgnum_array nums = { 0, 0, NULL };
+    struct msgs *mp, *mp2;
     register FILE *fp;
+    int debug = 0;
+    int reverse = 0;
 
-    done=putzero_done;
+    if (nmh_init(argv[0], 1)) { return 1; }
 
-#ifdef LOCALE
-    setlocale(LC_ALL, "");
-#endif
-    invo_name = r1bindex (argv[0], '/');
+    done=putzero_done;
 
-    /* read user profile/context */
-    context_read();
+    /* Deprecated.  Use -debug instead. */
+    if ((cp = getenv ("MHPDEBUG")) && *cp)
+	++debug;
 
     arguments = getarguments (invo_name, argc, argv, 1);
     argp = arguments;
@@ -102,6 +106,10 @@ main (int argc, char **argv)
 		listsw = 0;	/* HACK */
 		done (0);
 
+            case REVSW:
+                reverse = 1;
+                continue;
+
 	    case CCSW: 
 	    case DATESW: 
 	    case FROMSW: 
@@ -132,14 +140,11 @@ main (int argc, char **argv)
 		if (!(cp = *argp++) || *cp == '-')
 		    adios (NULL, "missing argument to %s", argp[-2]);
 
-		/* check if too many sequences specified */
-		if (seqp >= NUMATTRS)
-		    adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
-
                 if (!seq_nameok (cp))
                   done (1);
 
-		seqs[seqp++] = cp;
+		svector_push_back (seqs, cp);
+		seqp++;
 		continue;
 	    case NSEQSW:
 		seqp = 0;
@@ -163,6 +168,10 @@ main (int argc, char **argv)
 	    case NLISTSW: 
 		listsw = 0;
 		continue;
+
+	    case DEBUGSW:
+		++debug;
+		continue;
 	    }
 	}
 	if (*cp == '+' || *cp == '@') {
@@ -204,7 +213,6 @@ main (int argc, char **argv)
     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 	if (!m_convert (mp, msgs.msgs[msgnum]))
 	    done (1);
-    seq_setprev (mp);	/* set the previous-sequence */
 
     /*
      * If we aren't saving the results to a sequence,
@@ -219,9 +227,6 @@ main (int argc, char **argv)
     if (!pcompile (vec, NULL))
 	done (1);
 
-    lo = mp->lowsel;
-    hi = mp->hghsel;
-
     /* If printing message numbers to standard out, force line buffering on.
      */
     if (listsw)
@@ -229,56 +234,79 @@ main (int argc, char **argv)
 
     /*
      * Scan through all the SELECTED messages and check for a
-     * match.  If the message does not match, then unselect it.
+     * 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++) {
+    for (msgnum = reverse ? mp->hghsel : mp->lowsel;
+         reverse ? msgnum >= mp->lowsel : msgnum <= mp->hghsel;
+         msgnum += reverse ? -1 : 1) {
 	if (is_selected (mp, msgnum)) {
 	    if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 		admonish (cp, "unable to read message");
-	    if (fp && pmatches (fp, msgnum, 0L, 0L)) {
-		if (msgnum < lo)
-		    lo = msgnum;
-		if (msgnum > hi)
-		    hi = msgnum;
-
+	    if (fp && pmatches (fp, msgnum, 0L, 0L, debug)) {
 		if (listsw)
 		    printf ("%s\n", m_name (msgnum));
 	    } else {
-		/* if it doesn't match, then unselect it */
-		unset_selected (mp, msgnum);
-		mp->numsel--;
+	    	app_msgnum(&nums, msgnum);
 	    }
 	    if (fp)
 		fclose (fp);
 	}
     }
 
-    mp->lowsel = lo;
-    mp->hghsel = hi;
-
-    if (mp->numsel <= 0)
+    if (nums.size >= mp->numsel)
 	adios (NULL, "no messages match specification");
 
-    seqs[seqp] = NULL;
+    /*
+     * So, what's happening here?
+     *
+     * - Re-read the folder and sequences, but with locking.
+     * - Recreate the original set of selected messages from the command line
+     * - Set the previous sequence
+     * - Remove any messages that did NOT result in hits from the selection
+     * - Add to any new sequences
+     */
+
+    if (!(mp2 = folder_read (folder, 1)))
+	adios (NULL, "unable to reread folder %s", folder);
+
+    for (msgnum = 0; msgnum < msgs.size; msgnum++)
+	if (!m_convert (mp2, msgs.msgs[msgnum]))
+	    done (1);
+    seq_setprev (mp2);	/* set the previous-sequence */
+
+    /*
+     * Nums contains a list of messages that we did NOT match.  Remove
+     * that from the selection.
+     */
+
+    for (msgnum = 0; msgnum < nums.size; msgnum++) {
+    	unset_selected(mp2, nums.msgnums[msgnum]);
+	mp2->numsel--;
+    }
 
     /*
      * Add the matching messages to sequences
      */
-    for (seqp = 0; seqs[seqp]; seqp++)
-	if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
-	    done (1);
+    if (seqp > 0) {
+	for (seqp = 0; seqp < svector_size (seqs); seqp++)
+	    if (!seq_addsel (mp2, svector_at (seqs, seqp), publicsw, zerosw))
+		done (1);
+    }
 
     /*
      * Print total matched if not printing each matched message number.
      */
     if (!listsw) {
-	printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
+	printf ("%d hit%s\n", mp2->numsel, mp2->numsel == 1 ? "" : "s");
     }
 
+    svector_free (seqs);
     context_replace (pfolder, folder);	/* update current folder         */
-    seq_save (mp);			/* synchronize message sequences */
+    seq_save (mp2);			/* synchronize message sequences */
     context_save ();			/* save the context file         */
     folder_free (mp);			/* free folder/message structure */
+    folder_free (mp2);
     done (0);
     return 1;
 }