diplodocus.org Git - nmh/blob - uip/pick.c

   1
   2 /*
   3  * pick.c -- search for messages by content
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <h/tws.h>
  14 #include <h/picksbr.h>
  15 #include <h/utils.h>
  16
  17 static struct swit switches[] = {
  18 #define ANDSW                   0
  19     { "and", 0 },
  20 #define ORSW                    1
  21     { "or", 0 },
  22 #define NOTSW                   2
  23     { "not", 0 },
  24 #define LBRSW                   3
  25     { "lbrace", 0 },
  26 #define RBRSW                   4
  27     { "rbrace", 0 },
  28 #define CCSW                    5
  29     { "cc  pattern", 0 },
  30 #define DATESW                  6
  31     { "date  pattern", 0 },
  32 #define FROMSW                  7
  33     { "from  pattern", 0 },
  34 #define SRCHSW                  8
  35     { "search  pattern", 0 },
  36 #define SUBJSW                  9
  37     { "subject  pattern", 0 },
  38 #define TOSW                   10
  39     { "to  pattern", 0 },
  40 #define OTHRSW                 11
  41     { "-othercomponent  pattern", 0 },
  42 #define AFTRSW                 12
  43     { "after date", 0 },
  44 #define BEFRSW                 13
  45     { "before date", 0 },
  46 #define DATFDSW                14
  47     { "datefield field", 5 },
  48 #define SEQSW                  15
  49     { "sequence name", 0 },
  50 #define PUBLSW                 16
  51     { "public", 0 },
  52 #define NPUBLSW                17
  53     { "nopublic", 0 },
  54 #define ZEROSW                 18
  55     { "zero", 0 },
  56 #define NZEROSW                19
  57     { "nozero", 0 },
  58 #define LISTSW                 20
  59     { "list", 0 },
  60 #define NLISTSW                21
  61     { "nolist", 0 },
  62 #define VERSIONSW              22
  63     { "version", 0 },
  64 #define HELPSW                 23
  65     { "help", 0 },
  66     { NULL, 0 }
  67 };
  68
  69 static int listsw = -1;
  70
  71
  72 int
  73 main (int argc, char **argv)
  74 {
  75     int publicsw = -1, zerosw = 1, seqp = 0, vecp = 0;
  76     int lo, hi, msgnum;
  77     char *maildir, *folder = NULL, buf[100];
  78     char *cp, **argp, **arguments;
  79     char *seqs[NUMATTRS + 1], *vec[MAXARGS];
  80     struct msgs_array msgs = { 0, 0, NULL };
  81     struct msgs *mp;
  82     register FILE *fp;
  83
  84 #ifdef LOCALE
  85     setlocale(LC_ALL, "");
  86 #endif
  87     invo_name = r1bindex (argv[0], '/');
  88
  89     /* read user profile/context */
  90     context_read();
  91
  92     arguments = getarguments (invo_name, argc, argv, 1);
  93     argp = arguments;
  94
  95     while ((cp = *argp++)) {
  96         if (*cp == '-') {
  97             if (*++cp == '-') {
  98                 vec[vecp++] = --cp;
  99                 goto pattern;
 100             }
 101             switch (smatch (cp, switches)) {
 102             case AMBIGSW:
 103                 ambigsw (cp, switches);
 104                 listsw = 0;     /* HACK */
 105                 done (1);
 106             case UNKWNSW:
 107                 adios (NULL, "-%s unknown", cp);
 108
 109             case HELPSW:
 110                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 111                           invo_name);
 112                 print_help (buf, switches, 1);
 113                 listsw = 0;     /* HACK */
 114                 done (1);
 115             case VERSIONSW:
 116                 print_version(invo_name);
 117                 listsw = 0;     /* HACK */
 118                 done (1);
 119
 120             case CCSW:
 121             case DATESW:
 122             case FROMSW:
 123             case SUBJSW:
 124             case TOSW:
 125             case DATFDSW:
 126             case AFTRSW:
 127             case BEFRSW:
 128             case SRCHSW:
 129                 vec[vecp++] = --cp;
 130             pattern:
 131                 if (!(cp = *argp++))/* allow -xyz arguments */
 132                     adios (NULL, "missing argument to %s", argp[-2]);
 133                 vec[vecp++] = cp;
 134                 continue;
 135             case OTHRSW:
 136                 adios (NULL, "internal error!");
 137
 138             case ANDSW:
 139             case ORSW:
 140             case NOTSW:
 141             case LBRSW:
 142             case RBRSW:
 143                 vec[vecp++] = --cp;
 144                 continue;
 145
 146             case SEQSW:
 147                 if (!(cp = *argp++) || *cp == '-')
 148                     adios (NULL, "missing argument to %s", argp[-2]);
 149
 150                 /* check if too many sequences specified */
 151                 if (seqp >= NUMATTRS)
 152                     adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
 153                 seqs[seqp++] = cp;
 154                 continue;
 155             case PUBLSW:
 156                 publicsw = 1;
 157                 continue;
 158             case NPUBLSW:
 159                 publicsw = 0;
 160                 continue;
 161             case ZEROSW:
 162                 zerosw++;
 163                 continue;
 164             case NZEROSW:
 165                 zerosw = 0;
 166                 continue;
 167
 168             case LISTSW:
 169                 listsw = 1;
 170                 continue;
 171             case NLISTSW:
 172                 listsw = 0;
 173                 continue;
 174             }
 175         }
 176         if (*cp == '+' || *cp == '@') {
 177             if (folder)
 178                 adios (NULL, "only one folder at a time!");
 179             else
 180                 folder = pluspath (cp);
 181         } else
 182                 app_msgarg(&msgs, cp);
 183     }
 184     vec[vecp] = NULL;
 185
 186     if (!context_find ("path"))
 187         free (path ("./", TFOLDER));
 188
 189     /*
 190      * If we didn't specify which messages to search,
 191      * then search the whole folder.
 192      */
 193     if (!msgs.size)
 194         app_msgarg(&msgs, "all");
 195
 196     if (!folder)
 197         folder = getfolder (1);
 198     maildir = m_maildir (folder);
 199
 200     if (chdir (maildir) == NOTOK)
 201         adios (maildir, "unable to change directory to");
 202
 203     /* read folder and create message structure */
 204     if (!(mp = folder_read (folder)))
 205         adios (NULL, "unable to read folder %s", folder);
 206
 207     /* check for empty folder */
 208     if (mp->nummsg == 0)
 209         adios (NULL, "no messages in %s", folder);
 210
 211     /* parse all the message ranges/sequences and set SELECTED */
 212     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 213         if (!m_convert (mp, msgs.msgs[msgnum]))
 214             done (1);
 215     seq_setprev (mp);   /* set the previous-sequence */
 216
 217     /*
 218      * If we aren't saving the results to a sequence,
 219      * we default to list the results.
 220      */
 221     if (listsw == -1)
 222         listsw = !seqp;
 223
 224     if (publicsw == 1 && is_readonly(mp))
 225         adios (NULL, "folder %s is read-only, so -public not allowed", folder);
 226
 227     if (!pcompile (vec, NULL))
 228         done (1);
 229
 230     lo = mp->lowsel;
 231     hi = mp->hghsel;
 232
 233     /*
 234      * Scan through all the SELECTED messages and check for a
 235      * match.  If the message does not match, then unselect it.
 236      */
 237     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 238         if (is_selected (mp, msgnum)) {
 239             if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 240                 admonish (cp, "unable to read message");
 241             if (fp && pmatches (fp, msgnum, 0L, 0L)) {
 242                 if (msgnum < lo)
 243                     lo = msgnum;
 244                 if (msgnum > hi)
 245                     hi = msgnum;
 246             } else {
 247                 /* if it doesn't match, then unselect it */
 248                 unset_selected (mp, msgnum);
 249                 mp->numsel--;
 250             }
 251             if (fp)
 252                 fclose (fp);
 253         }
 254     }
 255
 256     mp->lowsel = lo;
 257     mp->hghsel = hi;
 258
 259     if (mp->numsel <= 0)
 260         adios (NULL, "no messages match specification");
 261
 262     seqs[seqp] = NULL;
 263
 264     /*
 265      * Add the matching messages to sequences
 266      */
 267     for (seqp = 0; seqs[seqp]; seqp++)
 268         if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
 269             done (1);
 270
 271     /*
 272      * Print the name of all the matches
 273      */
 274     if (listsw) {
 275         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 276             if (is_selected (mp, msgnum))
 277                 printf ("%s\n", m_name (msgnum));
 278     } else {
 279         printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
 280     }
 281
 282     context_replace (pfolder, folder);  /* update current folder         */
 283     seq_save (mp);                      /* synchronize message sequences */
 284     context_save ();                    /* save the context file         */
 285     folder_free (mp);                   /* free folder/message structure */
 286     return done (0);
 287 }
 288
 289
 290 int
 291 done (int status)
 292 {
 293     if (listsw && status && !isatty (fileno (stdout)))
 294         printf ("0\n");
 295     exit (status);
 296     return 1;  /* dead code to satisfy the compiler */
 297 }