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