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

   1 /*
   2 ** scan.c -- display a one-line "scan" listing of folder or messages
   3 **
   4 ** This code is Copyright (c) 2002, 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/fmt_scan.h>
  11 #include <h/scansbr.h>
  12 #include <h/tws.h>
  13 #include <h/utils.h>
  14 #include <errno.h>
  15 #include <unistd.h>
  16 #include <locale.h>
  17 #include <sysexits.h>
  18
  19 static struct swit switches[] = {
  20 #define FORMSW  0
  21         { "form formatfile", 0 },
  22 #define WIDTHSW  1
  23         { "width columns", 0 },
  24 #define FILESW  2
  25         { "file file", 0 },
  26 #define VERSIONSW 3
  27         { "Version", 0 },
  28 #define HELPSW  4
  29         { "help", 0 },
  30         { NULL, 0 }
  31 };
  32
  33
  34 int
  35 main(int argc, char **argv)
  36 {
  37         int width = 0;
  38         int i, state, msgnum;
  39         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  40         char *cp, *maildir, *file = NULL, *folder = NULL;
  41         char *form = NULL, buf[BUFSIZ];
  42         char **argp, *fmtstr, **arguments;
  43         struct msgs_array msgs = { 0, 0, NULL };
  44         struct msgs *mp;
  45         FILE *in;
  46
  47         setlocale(LC_ALL, "");
  48         invo_name = mhbasename(argv[0]);
  49
  50         /* read user profile/context */
  51         context_read();
  52
  53         arguments = getarguments(invo_name, argc, argv, 1);
  54         argp = arguments;
  55
  56         /*
  57         ** Parse arguments
  58         */
  59         while ((cp = *argp++)) {
  60                 if (*cp == '-') {
  61                         switch (smatch(++cp, switches)) {
  62                         case AMBIGSW:
  63                                 ambigsw(cp, switches);
  64                                 exit(EX_USAGE);
  65                         case UNKWNSW:
  66                                 adios(EX_USAGE, NULL, "-%s unknown", cp);
  67
  68                         case HELPSW:
  69                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  70                                 print_help(buf, switches, 1);
  71                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  72                         case VERSIONSW:
  73                                 print_version(invo_name);
  74                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  75
  76                         case FORMSW:
  77                                 if (!(form = *argp++) || *form == '-')
  78                                         adios(EX_USAGE, NULL, "missing argument to %s",
  79                                                         argp[-2]);
  80                                 continue;
  81
  82                         case WIDTHSW:
  83                                 if (!(cp = *argp++) || *cp == '-')
  84                                         adios(EX_USAGE, NULL, "missing argument to %s",
  85                                                         argp[-2]);
  86                                 width = atoi(cp);
  87                                 continue;
  88
  89                         case FILESW:
  90                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
  91                                         adios(EX_USAGE, NULL, "missing argument to %s",
  92                                                         argp[-2]);
  93                                 if (strcmp(file = cp, "-")!=0)
  94                                         file = mh_xstrdup(expanddir(cp));
  95                                 continue;
  96                         }
  97                 }
  98                 if (*cp == '+' || *cp == '@') {
  99                         if (folder)
 100                                 adios(EX_USAGE, NULL, "only one folder at a time!");
 101                         else
 102                                 folder = mh_xstrdup(expandfol(cp));
 103                 } else
 104                         app_msgarg(&msgs, cp);
 105         }
 106
 107         /* Set format string.  Must be before chdir(). */
 108         fmtstr = new_fs(form, scanformat);
 109
 110         /*
 111         ** We are scanning a maildrop file
 112         */
 113         if (file) {
 114                 if (msgs.size)
 115                         adios(EX_USAGE, NULL, "\"msgs\" not allowed with -file");
 116                 if (folder)
 117                         adios(EX_USAGE, NULL, "\"+folder\" not allowed with -file");
 118
 119                 /* check if "file" is really stdin */
 120                 if (strcmp(file, "-") == 0) {
 121                         in = stdin;
 122                         file = "stdin";
 123                 } else if (!(in = fopen(file, "r"))) {
 124                         adios(EX_IOERR, file, "unable to open");
 125                 }
 126
 127                 for (msgnum = 1; ; ++msgnum) {
 128                         state = scan(in, msgnum, SCN_MBOX, fmtstr, width, 0, 0);
 129                         if (state != SCNMSG)
 130                                 break;
 131                 }
 132                 fclose(in);
 133                 exit(EX_OK);
 134         }
 135
 136         /*
 137         ** We are scanning a folder
 138         */
 139
 140         if (!msgs.size)
 141                 app_msgarg(&msgs, seq_all);
 142         if (!folder)
 143                 folder = getcurfol();
 144         maildir = toabsdir(folder);
 145
 146         if (chdir(maildir) == NOTOK)
 147                 adios(EX_OSERR, maildir, "unable to change directory to");
 148
 149         if (!(mp = folder_read(folder)))
 150                 adios(EX_IOERR, NULL, "unable to read folder %s", folder);
 151
 152         /* check for empty folder */
 153         if (mp->nummsg == 0)
 154                 adios(EX_DATAERR, NULL, "no messages in %s", folder);
 155
 156         /* parse all the message ranges/sequences and set SELECTED */
 157         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 158                 if (!m_convert(mp, msgs.msgs[msgnum]))
 159                         exit(EX_USAGE);
 160         seq_setprev(mp);
 161
 162         context_replace(curfolder, folder);
 163         seq_save(mp);
 164         context_save();
 165
 166         /*
 167         ** Get the sequence number for each `unseen' sequence
 168         */
 169         if (!(cp = context_find(usequence))) {
 170                 cp = seq_unseen;  /* use default, if not set */
 171         }
 172         if (*cp) {
 173                 char **ap, *dp;
 174
 175                 dp = mh_xstrdup(cp);
 176                 ap = brkstring(dp, " ", "\n");
 177                 for (i = 0; ap && *ap; i++, ap++) {
 178                         seqnum[i] = seq_getnum(mp, *ap);
 179                 }
 180                 num_unseen_seq = i;
 181                 if (dp) {
 182                         mh_free0(&dp);
 183                 }
 184         }
 185
 186         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 187                 if (!is_selected(mp, msgnum)) {
 188                         continue;
 189                 }
 190
 191                 if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 192                         admonish(cp, "unable to open message");
 193                         continue;
 194                 }
 195
 196                 /*
 197                 ** Check if message is in any sequence given
 198                 ** by Unseen-Sequence profile entry.
 199                 */
 200                 unseen = 0;
 201                 for (i = 0; i < num_unseen_seq; i++) {
 202                         if (in_sequence(mp, seqnum[i], msgnum)) {
 203                                 unseen = 1;
 204                                 break;
 205                         }
 206                 }
 207
 208                 switch (state = scan(in, msgnum, SCN_FOLD, fmtstr,
 209                                 width, msgnum==mp->curmsg, unseen)) {
 210                 case SCNMSG:
 211                 case SCNERR:
 212                         break;
 213
 214                 default:
 215                         adios(EX_SOFTWARE, NULL, "scan() botch(%d)", state);
 216
 217                 case SCNEOF:
 218                         advise(NULL, "message %d: empty", msgnum);
 219                         break;
 220                 }
 221                 fclose(in);
 222         }
 223         folder_free(mp);
 224
 225         return 0;
 226 }