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, vecp = 0;
  75     size_t seqp = 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     done=putzero_done;
  85
  86 #ifdef LOCALE
  87     setlocale(LC_ALL, "");
  88 #endif
  89     invo_name = r1bindex (argv[0], '/');
  90
  91     /* read user profile/context */
  92     context_read();
  93
  94     arguments = getarguments (invo_name, argc, argv, 1);
  95     argp = arguments;
  96
  97     while ((cp = *argp++)) {
  98         if (*cp == '-') {
  99             if (*++cp == '-') {
 100                 vec[vecp++] = --cp;
 101                 goto pattern;
 102             }
 103             switch (smatch (cp, switches)) {
 104             case AMBIGSW:
 105                 ambigsw (cp, switches);
 106                 listsw = 0;     /* HACK */
 107                 done (1);
 108             case UNKWNSW:
 109                 adios (NULL, "-%s unknown", cp);
 110
 111             case HELPSW:
 112                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 113                           invo_name);
 114                 print_help (buf, switches, 1);
 115                 listsw = 0;     /* HACK */
 116                 done (0);
 117             case VERSIONSW:
 118                 print_version(invo_name);
 119                 listsw = 0;     /* HACK */
 120                 done (0);
 121
 122             case CCSW:
 123             case DATESW:
 124             case FROMSW:
 125             case SUBJSW:
 126             case TOSW:
 127             case DATFDSW:
 128             case AFTRSW:
 129             case BEFRSW:
 130             case SRCHSW:
 131                 vec[vecp++] = --cp;
 132             pattern:
 133                 if (!(cp = *argp++))/* allow -xyz arguments */
 134                     adios (NULL, "missing argument to %s", argp[-2]);
 135                 vec[vecp++] = cp;
 136                 continue;
 137             case OTHRSW:
 138                 adios (NULL, "internal error!");
 139
 140             case ANDSW:
 141             case ORSW:
 142             case NOTSW:
 143             case LBRSW:
 144             case RBRSW:
 145                 vec[vecp++] = --cp;
 146                 continue;
 147
 148             case SEQSW:
 149                 if (!(cp = *argp++) || *cp == '-')
 150                     adios (NULL, "missing argument to %s", argp[-2]);
 151
 152                 /* check if too many sequences specified */
 153                 if (seqp >= NUMATTRS)
 154                     adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
 155
 156                 if (!seq_nameok (cp))
 157                   done (1);
 158
 159                 seqs[seqp++] = cp;
 160                 continue;
 161             case PUBLSW:
 162                 publicsw = 1;
 163                 continue;
 164             case NPUBLSW:
 165                 publicsw = 0;
 166                 continue;
 167             case ZEROSW:
 168                 zerosw++;
 169                 continue;
 170             case NZEROSW:
 171                 zerosw = 0;
 172                 continue;
 173
 174             case LISTSW:
 175                 listsw = 1;
 176                 continue;
 177             case NLISTSW:
 178                 listsw = 0;
 179                 continue;
 180             }
 181         }
 182         if (*cp == '+' || *cp == '@') {
 183             if (folder)
 184                 adios (NULL, "only one folder at a time!");
 185             else
 186                 folder = pluspath (cp);
 187         } else
 188                 app_msgarg(&msgs, cp);
 189     }
 190     vec[vecp] = NULL;
 191
 192     if (!context_find ("path"))
 193         free (path ("./", TFOLDER));
 194
 195     /*
 196      * If we didn't specify which messages to search,
 197      * then search the whole folder.
 198      */
 199     if (!msgs.size)
 200         app_msgarg(&msgs, "all");
 201
 202     if (!folder)
 203         folder = getfolder (1);
 204     maildir = m_maildir (folder);
 205
 206     if (chdir (maildir) == NOTOK)
 207         adios (maildir, "unable to change directory to");
 208
 209     /* read folder and create message structure */
 210     if (!(mp = folder_read (folder)))
 211         adios (NULL, "unable to read folder %s", folder);
 212
 213     /* check for empty folder */
 214     if (mp->nummsg == 0)
 215         adios (NULL, "no messages in %s", folder);
 216
 217     /* parse all the message ranges/sequences and set SELECTED */
 218     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 219         if (!m_convert (mp, msgs.msgs[msgnum]))
 220             done (1);
 221     seq_setprev (mp);   /* set the previous-sequence */
 222
 223     /*
 224      * If we aren't saving the results to a sequence,
 225      * we default to list the results.
 226      */
 227     if (listsw == -1)
 228         listsw = !seqp;
 229
 230     if (publicsw == 1 && is_readonly(mp))
 231         adios (NULL, "folder %s is read-only, so -public not allowed", folder);
 232
 233     if (!pcompile (vec, NULL))
 234         done (1);
 235
 236     lo = mp->lowsel;
 237     hi = mp->hghsel;
 238
 239     /* If printing message numbers to standard out, force line buffering on.
 240      */
 241     if (listsw)
 242         setvbuf (stdout, NULL, _IOLBF, 0);
 243
 244     /*
 245      * Scan through all the SELECTED messages and check for a
 246      * match.  If the message does not match, then unselect it.
 247      */
 248     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 249         if (is_selected (mp, msgnum)) {
 250             if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
 251                 admonish (cp, "unable to read message");
 252             if (fp && pmatches (fp, msgnum, 0L, 0L)) {
 253                 if (msgnum < lo)
 254                     lo = msgnum;
 255                 if (msgnum > hi)
 256                     hi = msgnum;
 257
 258                 if (listsw)
 259                     printf ("%s\n", m_name (msgnum));
 260             } else {
 261                 /* if it doesn't match, then unselect it */
 262                 unset_selected (mp, msgnum);
 263                 mp->numsel--;
 264             }
 265             if (fp)
 266                 fclose (fp);
 267         }
 268     }
 269
 270     mp->lowsel = lo;
 271     mp->hghsel = hi;
 272
 273     if (mp->numsel <= 0)
 274         adios (NULL, "no messages match specification");
 275
 276     seqs[seqp] = NULL;
 277
 278     /*
 279      * Add the matching messages to sequences
 280      */
 281     for (seqp = 0; seqs[seqp]; seqp++)
 282         if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
 283             done (1);
 284
 285     /*
 286      * Print total matched if not printing each matched message number.
 287      */
 288     if (!listsw) {
 289         printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
 290     }
 291
 292     context_replace (pfolder, folder);  /* update current folder         */
 293     seq_save (mp);                      /* synchronize message sequences */
 294     context_save ();                    /* save the context file         */
 295     folder_free (mp);                   /* free folder/message structure */
 296     done (0);
 297     return 1;
 298 }
 299
 300
 301 static void
 302 putzero_done (int status)
 303 {
 304     if (listsw && status && !isatty (fileno (stdout)))
 305         printf ("0\n");
 306     exit (status);
 307 }