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

   1
   2 /*
   3  * pick.c -- search for messages by content
   4  *
   5  * This code is Copyright (c) 2002, 2008, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/tws.h>
  12 #include <h/picksbr.h>
  13 #include <h/utils.h>
  14
  15 static struct swit switches[] = {
  16 #define ANDSW                   0
  17     { "and", 0 },
  18 #define ORSW                    1
  19     { "or", 0 },
  20 #define NOTSW                   2
  21     { "not", 0 },
  22 #define LBRSW                   3
  23     { "lbrace", 0 },
  24 #define RBRSW                   4
  25     { "rbrace", 0 },
  26 #define CCSW                    5
  27     { "cc  pattern", 0 },
  28 #define DATESW                  6
  29     { "date  pattern", 0 },
  30 #define FROMSW                  7
  31     { "from  pattern", 0 },
  32 #define SRCHSW                  8
  33     { "search  pattern", 0 },
  34 #define SUBJSW                  9
  35     { "subject  pattern", 0 },
  36 #define TOSW                   10
  37     { "to  pattern", 0 },
  38 #define OTHRSW                 11
  39     { "-othercomponent  pattern", 0 },
  40 #define AFTRSW                 12
  41     { "after date", 0 },
  42 #define BEFRSW                 13
  43     { "before date", 0 },
  44 #define DATFDSW                14
  45     { "datefield field", 5 },
  46 #define SEQSW                  15
  47     { "sequence name", 0 },
  48 #define NSEQSW                 16
  49     { "nosequence", 0 },
  50 #define PUBLSW                 17
  51     { "public", 0 },
  52 #define NPUBLSW                18
  53     { "nopublic", 0 },
  54 #define ZEROSW                 19
  55     { "zero", 0 },
  56 #define NZEROSW                20
  57     { "nozero", 0 },
  58 #define LISTSW                 21
  59     { "list", 0 },
  60 #define NLISTSW                22
  61     { "nolist", 0 },
  62 #define VERSIONSW              23
  63     { "version", 0 },
  64 #define HELPSW                 24
  65     { "help", 0 },
  66     { NULL, 0 }
  67 };
  68
  69 static int listsw = -1;
  70
  71 static void putzero_done (int) NORETURN;
  72
  73 int
  74 main (int argc, char **argv)
  75 {
  76     int publicsw = -1, zerosw = 1, vecp = 0;
  77     size_t seqp = 0;
  78     int lo, hi, msgnum;
  79     char *maildir, *folder = NULL, buf[100];
  80     char *cp, **argp, **arguments;
  81     char *seqs[NUMATTRS + 1], *vec[MAXARGS];
  82     struct msgs_array msgs = { 0, 0, NULL };
  83     struct msgs *mp;
  84     register FILE *fp;
  85
  86     done=putzero_done;
  87
  88 #ifdef LOCALE
  89     setlocale(LC_ALL, "");
  90 #endif
  91     invo_name = r1bindex (argv[0], '/');
  92
  93     /* read user profile/context */
  94     context_read();
  95
  96     arguments = getarguments (invo_name, argc, argv, 1);
  97     argp = arguments;
  98
  99     while ((cp = *argp++)) {
 100         if (*cp == '-') {
 101             if (*++cp == '-') {
 102                 vec[vecp++] = --cp;
 103                 goto pattern;
 104             }
 105             switch (smatch (cp, switches)) {
 106             case AMBIGSW:
 107                 ambigsw (cp, switches);
 108                 listsw = 0;     /* HACK */
 109                 done (1);
 110             case UNKWNSW:
 111                 adios (NULL, "-%s unknown", cp);
 112
 113             case HELPSW:
 114                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 115                           invo_name);
 116                 print_help (buf, switches, 1);
 117                 listsw = 0;     /* HACK */
 118                 done (0);
 119             case VERSIONSW:
 120                 print_version(invo_name);
 121                 listsw = 0;     /* HACK */
 122                 done (0);
 123
 124             case CCSW:
 125             case DATESW:
 126             case FROMSW:
 127             case SUBJSW:
 128             case TOSW:
 129             case DATFDSW:
 130             case AFTRSW:
 131             case BEFRSW:
 132             case SRCHSW:
 133                 vec[vecp++] = --cp;
 134             pattern:
 135                 if (!(cp = *argp++))/* allow -xyz arguments */
 136                     adios (NULL, "missing argument to %s", argp[-2]);
 137                 vec[vecp++] = cp;
 138                 continue;
 139             case OTHRSW:
 140                 adios (NULL, "internal error!");
 141
 142             case ANDSW:
 143             case ORSW:
 144             case NOTSW:
 145             case LBRSW:
 146             case RBRSW:
 147                 vec[vecp++] = --cp;
 148                 continue;
 149
 150             case SEQSW:
 151                 if (!(cp = *argp++) || *cp == '-')
 152                     adios (NULL, "missing argument to %s", argp[-2]);
 153
 154                 /* check if too many sequences specified */
 155                 if (seqp >= NUMATTRS)
 156                     adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
 157
 158                 if (!seq_nameok (cp))
 159                   done (1);
 160
 161                 seqs[seqp++] = cp;
 162                 continue;
 163             case NSEQSW:
 164                 seqp = 0;
 165                 continue;
 166             case PUBLSW:
 167                 publicsw = 1;
 168                 continue;
 169             case NPUBLSW:
 170                 publicsw = 0;
 171                 continue;
 172             case ZEROSW:
 173                 zerosw++;
 174                 continue;
 175             case NZEROSW:
 176                 zerosw = 0;
 177                 continue;
 178
 179             case LISTSW:
 180                 listsw = 1;
 181                 continue;
 182             case NLISTSW:
 183                 listsw = 0;
 184                 continue;
 185             }
 186         }
 187         if (*cp == '+' || *cp == '@') {
 188             if (folder)
 189                 adios (NULL, "only one folder at a time!");
 190             else
 191                 folder = pluspath (cp);
 192         } else
 193                 app_msgarg(&msgs, cp);
 194     }
 195     vec[vecp] = NULL;
 196
 197     if (!context_find ("path"))
 198         free (path ("./", TFOLDER));
 199
 200     /*
 201      * If we didn't specify which messages to search,
 202      * then search the whole folder.
 203      */
 204     if (!msgs.size)
 205         app_msgarg(&msgs, "all");
 206
 207     if (!folder)
 208         folder = getfolder (1);
 209     maildir = m_maildir (folder);
 210
 211     if (chdir (maildir) == NOTOK)
 212         adios (maildir, "unable to change directory to");
 213
 214     /* read folder and create message structure */
 215     if (!(mp = folder_read (folder)))
 216         adios (NULL, "unable to read folder %s", folder);
 217
 218     /* check for empty folder */
 219     if (mp->nummsg == 0)
 220         adios (NULL, "no messages in %s", folder);
 221
 222     /* parse all the message ranges/sequences and set SELECTED */
 223     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 224         if (!m_convert (mp, msgs.msgs[msgnum]))
 225             done (1);
 226     seq_setprev (mp);   /* set the previous-sequence */
 227
 228     /*
 229      * If we aren't saving the results to a sequence,
 230      * we default to list the results.
 231      */
 232     if (listsw == -1)
 233         listsw = !seqp;
 234
 235     if (publicsw == 1 && is_readonly(mp))
 236         adios (NULL, "folder %s is read-only, so -public not allowed", folder);
 237
 238     if (!pcompile (vec, NULL))
 239         done (1);
 240
 241     lo = mp->lowsel;
 242     hi = mp->hghsel;
 243
 244     /* If printing message numbers to standard out, force line buffering on.
 245      */
 246     if (listsw)
 247         setvbuf (stdout, NULL, _IOLBF, 0);
 248
 249     /*
 250      * Scan through all the SELECTED messages and check for a
 251      * match.  If the message does not match, then unselect it.
 252      */
 253     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 254         if (is_selected (mp, msgnum)) {
 255             if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 256                 admonish (cp, "unable to read message");
 257             if (fp && pmatches (fp, msgnum, 0L, 0L)) {
 258                 if (msgnum < lo)
 259                     lo = msgnum;
 260                 if (msgnum > hi)
 261                     hi = msgnum;
 262
 263                 if (listsw)
 264                     printf ("%s\n", m_name (msgnum));
 265             } else {
 266                 /* if it doesn't match, then unselect it */
 267                 unset_selected (mp, msgnum);
 268                 mp->numsel--;
 269             }
 270             if (fp)
 271                 fclose (fp);
 272         }
 273     }
 274
 275     mp->lowsel = lo;
 276     mp->hghsel = hi;
 277
 278     if (mp->numsel <= 0)
 279         adios (NULL, "no messages match specification");
 280
 281     seqs[seqp] = NULL;
 282
 283     /*
 284      * Add the matching messages to sequences
 285      */
 286     for (seqp = 0; seqs[seqp]; seqp++)
 287         if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
 288             done (1);
 289
 290     /*
 291      * Print total matched if not printing each matched message number.
 292      */
 293     if (!listsw) {
 294         printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
 295     }
 296
 297     context_replace (pfolder, folder);  /* update current folder         */
 298     seq_save (mp);                      /* synchronize message sequences */
 299     context_save ();                    /* save the context file         */
 300     folder_free (mp);                   /* free folder/message structure */
 301     done (0);
 302     return 1;
 303 }
 304
 305
 306 static void
 307 putzero_done (int status)
 308 {
 309     if (listsw && status && !isatty (fileno (stdout)))
 310         printf ("0\n");
 311     exit (status);
 312 }