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
  16 static struct swit switches[] = {
  17 #define FORMSW  0
  18         { "form formatfile", 0 },
  19 #define WIDTHSW  1
  20         { "width columns", 0 },
  21 #define FILESW  2
  22         { "file file", 0 },
  23 #define VERSIONSW 3
  24         { "Version", 0 },
  25 #define HELPSW  4
  26         { "help", 0 },
  27         { NULL, 0 }
  28 };
  29
  30
  31 int
  32 main(int argc, char **argv)
  33 {
  34         int width = 0;
  35         int i, state, msgnum;
  36         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  37         char *cp, *maildir, *file = NULL, *folder = NULL;
  38         char *form = NULL, buf[BUFSIZ];
  39         char **argp, *fmtstr, **arguments;
  40         struct msgs_array msgs = { 0, 0, NULL };
  41         struct msgs *mp;
  42         FILE *in;
  43
  44 #ifdef LOCALE
  45         setlocale(LC_ALL, "");
  46 #endif
  47         invo_name = mhbasename(argv[0]);
  48
  49         /* read user profile/context */
  50         context_read();
  51
  52         arguments = getarguments(invo_name, argc, argv, 1);
  53         argp = arguments;
  54
  55         /*
  56         ** Parse arguments
  57         */
  58         while ((cp = *argp++)) {
  59                 if (*cp == '-') {
  60                         switch (smatch(++cp, switches)) {
  61                         case AMBIGSW:
  62                                 ambigsw(cp, switches);
  63                                 done(1);
  64                         case UNKWNSW:
  65                                 adios(NULL, "-%s unknown", cp);
  66
  67                         case HELPSW:
  68                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  69                                 print_help(buf, switches, 1);
  70                                 done(1);
  71                         case VERSIONSW:
  72                                 print_version(invo_name);
  73                                 done(1);
  74
  75                         case FORMSW:
  76                                 if (!(form = *argp++) || *form == '-')
  77                                         adios(NULL, "missing argument to %s",
  78                                                         argp[-2]);
  79                                 continue;
  80
  81                         case WIDTHSW:
  82                                 if (!(cp = *argp++) || *cp == '-')
  83                                         adios(NULL, "missing argument to %s",
  84                                                         argp[-2]);
  85                                 width = atoi(cp);
  86                                 continue;
  87
  88                         case FILESW:
  89                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
  90                                         adios(NULL, "missing argument to %s",
  91                                                         argp[-2]);
  92                                 if (strcmp(file = cp, "-")!=0)
  93                                         file = getcpy(expanddir(cp));
  94                                 continue;
  95                         }
  96                 }
  97                 if (*cp == '+' || *cp == '@') {
  98                         if (folder)
  99                                 adios(NULL, "only one folder at a time!");
 100                         else
 101                                 folder = getcpy(expandfol(cp));
 102                 } else
 103                         app_msgarg(&msgs, cp);
 104         }
 105
 106         /*
 107         ** Get new format string.  Must be before chdir().
 108         */
 109         fmtstr = new_fs(form, FORMAT);
 110
 111         /*
 112         ** We are scanning a maildrop file
 113         */
 114         if (file) {
 115                 if (msgs.size)
 116                         adios(NULL, "\"msgs\" not allowed with -file");
 117                 if (folder)
 118                         adios(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(file, "unable to open");
 126                 }
 127
 128                 thisisanmbox(in);
 129                 for (msgnum = 1; ; ++msgnum) {
 130                         state = scan(in, msgnum, SCN_MBOX, fmtstr, width, 0, 0);
 131                         if (state != SCNMSG)
 132                                 break;
 133                 }
 134                 fclose(in);
 135                 done(0);
 136         }
 137
 138         /*
 139         ** We are scanning a folder
 140         */
 141
 142         if (!msgs.size)
 143                 app_msgarg(&msgs, seq_all);
 144         if (!folder)
 145                 folder = getcurfol();
 146         maildir = toabsdir(folder);
 147
 148         if (chdir(maildir) == NOTOK)
 149                 adios(maildir, "unable to change directory to");
 150
 151         /* read folder and create message structure */
 152         if (!(mp = folder_read(folder)))
 153                 adios(NULL, "unable to read folder %s", folder);
 154
 155         /* check for empty folder */
 156         if (mp->nummsg == 0)
 157                 adios(NULL, "no messages in %s", folder);
 158
 159         /* parse all the message ranges/sequences and set SELECTED */
 160         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 161                 if (!m_convert(mp, msgs.msgs[msgnum]))
 162                         done(1);
 163         seq_setprev(mp);  /* set the Previous-Sequence */
 164
 165         context_replace(curfolder, folder);  /* update current folder */
 166         seq_save(mp);  /* synchronize message sequences */
 167         context_save();  /* save the context file */
 168
 169         /*
 170         ** Get the sequence number for each `unseen' sequence
 171         */
 172         if (!(cp = context_find(usequence))) {
 173                 cp = seq_unseen;  /* use default, if not set */
 174         }
 175         if (*cp) {
 176                 char **ap, *dp;
 177
 178                 dp = getcpy(cp);
 179                 ap = brkstring(dp, " ", "\n");
 180                 for (i = 0; ap && *ap; i++, ap++) {
 181                         seqnum[i] = seq_getnum(mp, *ap);
 182                 }
 183                 num_unseen_seq = i;
 184                 if (dp) {
 185                         free(dp);
 186                 }
 187         }
 188
 189         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 190                 if (is_selected(mp, msgnum)) {
 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(NULL, "scan() botch(%d)", state);
 216
 217                         case SCNEOF:
 218                                 advise(NULL, "message %d: empty", msgnum);
 219                                 break;
 220                         }
 221                         fclose(in);
 222                 }
 223         }
 224
 225         folder_free(mp);  /* free folder/message structure */
 226
 227         done(0);
 228         return 1;
 229 }