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 char *version=VERSION;
  34
  35 int
  36 main(int argc, char **argv)
  37 {
  38         int width = 0;
  39         int i, state, msgnum;
  40         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  41         char *cp, *maildir, *file = NULL, *folder = NULL;
  42         char *form = NULL, buf[BUFSIZ];
  43         char **argp, *fmtstr, **arguments;
  44         struct msgs_array msgs = { 0, 0, NULL };
  45         struct msgs *mp;
  46         FILE *in;
  47
  48         setlocale(LC_ALL, "");
  49         invo_name = mhbasename(argv[0]);
  50
  51         /* read user profile/context */
  52         context_read();
  53
  54         arguments = getarguments(invo_name, argc, argv, 1);
  55         argp = arguments;
  56
  57         /*
  58         ** Parse arguments
  59         */
  60         while ((cp = *argp++)) {
  61                 if (*cp == '-') {
  62                         switch (smatch(++cp, switches)) {
  63                         case AMBIGSW:
  64                                 ambigsw(cp, switches);
  65                                 exit(EX_USAGE);
  66                         case UNKWNSW:
  67                                 adios(EX_USAGE, NULL, "-%s unknown", cp);
  68
  69                         case HELPSW:
  70                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  71                                 print_help(buf, switches, 1);
  72                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  73                         case VERSIONSW:
  74                                 print_version(invo_name);
  75                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  76
  77                         case FORMSW:
  78                                 if (!(form = *argp++) || *form == '-')
  79                                         adios(EX_USAGE, NULL, "missing argument to %s",
  80                                                         argp[-2]);
  81                                 continue;
  82
  83                         case WIDTHSW:
  84                                 if (!(cp = *argp++) || *cp == '-')
  85                                         adios(EX_USAGE, NULL, "missing argument to %s",
  86                                                         argp[-2]);
  87                                 width = atoi(cp);
  88                                 continue;
  89
  90                         case FILESW:
  91                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
  92                                         adios(EX_USAGE, NULL, "missing argument to %s",
  93                                                         argp[-2]);
  94                                 if (strcmp(file = cp, "-")!=0)
  95                                         file = mh_xstrdup(expanddir(cp));
  96                                 continue;
  97                         }
  98                 }
  99                 if (*cp == '+' || *cp == '@') {
 100                         if (folder)
 101                                 adios(EX_USAGE, NULL, "only one folder at a time!");
 102                         else
 103                                 folder = mh_xstrdup(expandfol(cp));
 104                 } else
 105                         app_msgarg(&msgs, cp);
 106         }
 107
 108         /* Set format string.  Must be before chdir(). */
 109         fmtstr = new_fs(form, scanformat);
 110
 111         /*
 112         ** We are scanning a maildrop file
 113         */
 114         if (file) {
 115                 if (msgs.size)
 116                         adios(EX_USAGE, NULL, "\"msgs\" not allowed with -file");
 117                 if (folder)
 118                         adios(EX_USAGE, NULL, "\"+folder\" not allowed with -file");
 119
 120                 /* check if "file" is really stdin */
 121                 if (strcmp(file, "-") == 0) {
 122                         in = stdin;
 123                         file = "stdin";
 124                 } else if (!(in = fopen(file, "r"))) {
 125                         adios(EX_IOERR, file, "unable to open");
 126                 }
 127
 128                 for (msgnum = 1; ; ++msgnum) {
 129                         state = scan(in, msgnum, SCN_MBOX, fmtstr, width, 0, 0);
 130                         if (state != SCNMSG)
 131                                 break;
 132                 }
 133                 fclose(in);
 134                 exit(EX_OK);
 135         }
 136
 137         /*
 138         ** We are scanning a folder
 139         */
 140
 141         if (!msgs.size)
 142                 app_msgarg(&msgs, seq_all);
 143         if (!folder)
 144                 folder = getcurfol();
 145         maildir = toabsdir(folder);
 146
 147         if (chdir(maildir) == NOTOK)
 148                 adios(EX_OSERR, maildir, "unable to change directory to");
 149
 150         if (!(mp = folder_read(folder)))
 151                 adios(EX_IOERR, NULL, "unable to read folder %s", folder);
 152
 153         /* check for empty folder */
 154         if (mp->nummsg == 0)
 155                 adios(EX_DATAERR, NULL, "no messages in %s", folder);
 156
 157         /* parse all the message ranges/sequences and set SELECTED */
 158         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 159                 if (!m_convert(mp, msgs.msgs[msgnum]))
 160                         exit(EX_USAGE);
 161         seq_setprev(mp);
 162
 163         context_replace(curfolder, folder);
 164         seq_save(mp);
 165         context_save();
 166
 167         /*
 168         ** Get the sequence number for each `unseen' sequence
 169         */
 170         if (!(cp = context_find(usequence))) {
 171                 cp = seq_unseen;  /* use default, if not set */
 172         }
 173         if (*cp) {
 174                 char **ap, *dp;
 175
 176                 dp = mh_xstrdup(cp);
 177                 ap = brkstring(dp, " ", "\n");
 178                 for (i = 0; ap && *ap; i++, ap++) {
 179                         seqnum[i] = seq_getnum(mp, *ap);
 180                 }
 181                 num_unseen_seq = i;
 182                 if (dp) {
 183                         mh_free0(&dp);
 184                 }
 185         }
 186
 187         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 188                 if (!is_selected(mp, msgnum)) {
 189                         continue;
 190                 }
 191
 192                 if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 193                         admonish(cp, "unable to open message");
 194                         continue;
 195                 }
 196
 197                 /*
 198                 ** Check if message is in any sequence given
 199                 ** by Unseen-Sequence profile entry.
 200                 */
 201                 unseen = 0;
 202                 for (i = 0; i < num_unseen_seq; i++) {
 203                         if (in_sequence(mp, seqnum[i], msgnum)) {
 204                                 unseen = 1;
 205                                 break;
 206                         }
 207                 }
 208
 209                 switch (state = scan(in, msgnum, SCN_FOLD, fmtstr,
 210                                 width, msgnum==mp->curmsg, unseen)) {
 211                 case SCNMSG:
 212                 case SCNERR:
 213                         break;
 214
 215                 default:
 216                         adios(EX_SOFTWARE, NULL, "scan() botch(%d)", state);
 217
 218                 case SCNEOF:
 219                         advise(NULL, "message %d: empty", msgnum);
 220                         break;
 221                 }
 222                 fclose(in);
 223         }
 224         folder_free(mp);
 225
 226         return 0;
 227 }