git.marmaro.de Git - mmh/blob - uip/pick.c

   1 /*
   2 ** pick.c -- search for messages by content
   3 **
   4 ** This code is Copyright (c) 2002, 2008, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/tws.h>
  11 #include <h/picksbr.h>
  12 #include <h/utils.h>
  13
  14 static struct swit switches[] = {
  15 #define ANDSW  0
  16         { "and", 0 },
  17 #define ORSW  1
  18         { "or", 0 },
  19 #define NOTSW  2
  20         { "not", 0 },
  21 #define LBRSW  3
  22         { "lbrace", 0 },
  23 #define RBRSW  4
  24         { "rbrace", 0 },
  25 #define CCSW  5
  26         { "cc  pattern", 0 },
  27 #define DATESW  6
  28         { "date  pattern", 0 },
  29 #define FROMSW  7
  30         { "from  pattern", 0 },
  31 #define SRCHSW  8
  32         { "search  pattern", 0 },
  33 #define SUBJSW  9
  34         { "subject  pattern", 0 },
  35 #define TOSW  10
  36         { "to  pattern", 0 },
  37 #define OTHRSW  11
  38         { "-othercomponent  pattern", 0 },
  39 #define AFTRSW  12
  40         { "after date", 0 },
  41 #define BEFRSW  13
  42         { "before date", 0 },
  43 #define DATFDSW  14
  44         { "datefield field", 5 },
  45 #define SEQSW  15
  46         { "sequence name", 0 },
  47 #define PUBLSW  16
  48         { "public", 0 },
  49 #define NPUBLSW  17
  50         { "nopublic", 0 },
  51 #define ZEROSW  18
  52         { "zero", 0 },
  53 #define NZEROSW  19
  54         { "nozero", 0 },
  55 #define LISTSW  20
  56         { "list", 0 },
  57 #define NLISTSW  21
  58         { "nolist", 0 },
  59 #define VERSIONSW  22
  60         { "version", 0 },
  61 #define HELPSW  23
  62         { "help", 0 },
  63         { NULL, 0 }
  64 };
  65
  66 static int listsw = -1;
  67
  68 static void putzero_done(int) NORETURN;
  69
  70 int
  71 main(int argc, char **argv)
  72 {
  73         int publicsw = -1, zerosw = 1, seqp = 0, vecp = 0;
  74         int lo, hi, msgnum;
  75         char *maildir, *folder = NULL, buf[100];
  76         char *cp, **argp, **arguments;
  77         char *seqs[NUMATTRS + 1], *vec[MAXARGS];
  78         struct msgs_array msgs = { 0, 0, NULL };
  79         struct msgs *mp;
  80         register FILE *fp;
  81
  82         done=putzero_done;
  83
  84 #ifdef LOCALE
  85         setlocale(LC_ALL, "");
  86 #endif
  87         invo_name = mhbasename(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]", invo_name);
 111                                 print_help(buf, switches, 1);
 112                                 listsw = 0;  /* HACK */
 113                                 done(1);
 114                         case VERSIONSW:
 115                                 print_version(invo_name);
 116                                 listsw = 0;  /* HACK */
 117                                 done(1);
 118
 119                         case CCSW:
 120                         case DATESW:
 121                         case FROMSW:
 122                         case SUBJSW:
 123                         case TOSW:
 124                         case DATFDSW:
 125                         case AFTRSW:
 126                         case BEFRSW:
 127                         case SRCHSW:
 128                                 vec[vecp++] = --cp;
 129                         pattern:
 130                                 if (!(cp = *argp++)) /* allow -xyz arguments */
 131                                         adios(NULL, "missing argument to %s",
 132                                                         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",
 149                                                         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 = getcpy(expandfol(cp));
 186                 } else
 187                         app_msgarg(&msgs, cp);
 188         }
 189         vec[vecp] = NULL;
 190
 191         /*
 192         ** If we didn't specify which messages to search,
 193         ** then search the whole folder.
 194         */
 195         if (!msgs.size)
 196                 app_msgarg(&msgs, seq_all);
 197
 198         if (!folder)
 199                 folder = getcurfol();
 200         maildir = toabsdir(folder);
 201
 202         if (chdir(maildir) == NOTOK)
 203                 adios(maildir, "unable to change directory to");
 204
 205         /* read folder and create message structure */
 206         if (!(mp = folder_read(folder)))
 207                 adios(NULL, "unable to read folder %s", folder);
 208
 209         /* check for empty folder */
 210         if (mp->nummsg == 0)
 211                 adios(NULL, "no messages in %s", folder);
 212
 213         /* parse all the message ranges/sequences and set SELECTED */
 214         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 215                 if (!m_convert(mp, msgs.msgs[msgnum]))
 216                         done(1);
 217         seq_setprev(mp);  /* set the previous-sequence */
 218
 219         /*
 220         ** If we aren't saving the results to a sequence,
 221         ** we default to list the results.
 222         */
 223         if (listsw == -1)
 224                 listsw = !seqp;
 225
 226         if (publicsw == 1 && is_readonly(mp))
 227                 adios(NULL, "folder %s is read-only, so -public not allowed",
 228                                 folder);
 229
 230         if (!pcompile(vec, NULL))
 231                 done(1);
 232
 233         lo = mp->lowsel;
 234         hi = mp->hghsel;
 235
 236         /*
 237         ** If printing message numbers to standard out,
 238         ** 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(curfolder, 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 }