Invert ternary condition to remove one negative.

[nmh] / uip / pick.c

diff --git a/uip/pick.c b/uip/pick.c
index 66198ff26627958c29661e20cf03b5b01e60f92d..1084a478ba755f67415c49ac5be01d47aacebb1c 100644 (file)
--- a/uip/pick.c
+++ b/uip/pick.c
@@ -1,6 +1,4 @@
-
-/*
- * pick.c -- search for messages by content
+/* pick.c -- search for messages by content
  *
  * This code is Copyright (c) 2002, 2008, by the authors of nmh.  See the
  * COPYRIGHT file in the root directory of the nmh distribution for
@@ -11,8 +9,10 @@
 #include <h/tws.h>
 #include <h/picksbr.h>
 #include <h/utils.h>
+#include "sbr/m_maildir.h"
 
 #define PICK_SWITCHES \
+    X("reverse", 0, REVSW) \
     X("and", 0, ANDSW) \
     X("or", 0, ORSW) \
     X("not", 0, NOTSW) \
@@ -36,6 +36,7 @@
     X("nozero", 0, NZEROSW) \
     X("list", 0, LISTSW) \
     X("nolist", 0, NLISTSW) \
+    X("debug", 0, DEBUGSW) \
     X("version", 0, VERSIONSW) \
     X("help", 0, HELPSW) \
 
@@ -59,21 +60,19 @@ main (int argc, char **argv)
     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 msgnum_array nums = { 0, 0, NULL };
     struct msgs *mp, *mp2;
-    register FILE *fp;
-
-    done=putzero_done;
+    FILE *fp;
+    int debug = 0;
+    int reverse = 0;
+    int start, end, inc;
 
-#ifdef LOCALE
-    setlocale(LC_ALL, "");
-#endif
-    invo_name = r1bindex (argv[0], '/');
+    if (nmh_init(argv[0], 1)) { return 1; }
 
-    /* read user profile/context */
-    context_read();
+    done=putzero_done;
 
     arguments = getarguments (invo_name, argc, argv, 1);
     argp = arguments;
@@ -103,6 +102,10 @@ main (int argc, char **argv)
                listsw = 0;     /* HACK */
                done (0);
 
+            case REVSW:
+                reverse = 1;
+                continue;
+
            case CCSW: 
            case DATESW: 
            case FROMSW: 
@@ -133,14 +136,11 @@ 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;
@@ -164,13 +164,16 @@ main (int argc, char **argv)
            case NLISTSW: 
                listsw = 0;
                continue;
+
+           case DEBUGSW:
+               ++debug;
+               continue;
            }
        }
        if (*cp == '+' || *cp == '@') {
            if (folder)
                adios (NULL, "only one folder at a time!");
-           else
-               folder = pluspath (cp);
+            folder = pluspath (cp);
        } else
                app_msgarg(&msgs, cp);
     }
@@ -229,13 +232,22 @@ 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");
-           if (fp && pmatches (fp, msgnum, 0L, 0L)) {
+           if (fp && pmatches (fp, msgnum, 0L, 0L, debug)) {
                if (listsw)
-                   printf ("%s\n", m_name (msgnum));
+                   puts(m_name (msgnum));
            } else {
                app_msgnum(&nums, msgnum);
            }
@@ -247,8 +259,6 @@ main (int argc, char **argv)
     if (nums.size >= mp->numsel)
        adios (NULL, "no messages match specification");
 
-    seqs[seqp] = NULL;
-
     /*
      * So, what's happening here?
      *
@@ -280,17 +290,20 @@ main (int argc, char **argv)
     /*
      * Add the matching messages to sequences
      */
-    for (seqp = 0; seqs[seqp]; seqp++)
-       if (!seq_addsel (mp2, 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", mp2->numsel, mp2->numsel == 1 ? "" : "s");
+       printf ("%d hit%s\n", mp2->numsel, PLURALS(mp2->numsel));
     }
 
+    svector_free (seqs);
     context_replace (pfolder, folder); /* update current folder         */
     seq_save (mp2);                    /* synchronize message sequences */
     context_save ();                   /* save the context file         */
@@ -301,10 +314,10 @@ main (int argc, char **argv)
 }
 
 
-static void
+static void NORETURN
 putzero_done (int status)
 {
     if (listsw && status && !isatty (fileno (stdout)))
-       printf ("0\n");
+       puts("0");
     exit (status);
 }