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