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", 4 },
  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 ontty;
  35         int width = 0;
  36         int i, state, msgnum;
  37         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  38         char *cp, *maildir, *file = NULL, *folder = NULL;
  39         char *form = NULL, buf[BUFSIZ];
  40         char **argp, *nfs, **arguments;
  41         struct msgs_array msgs = { 0, 0, NULL };
  42         struct msgs *mp;
  43         FILE *in;
  44
  45 #ifdef LOCALE
  46         setlocale(LC_ALL, "");
  47 #endif
  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                                 done(1);
  65                         case UNKWNSW:
  66                                 adios(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                                 done(1);
  72                         case VERSIONSW:
  73                                 print_version(invo_name);
  74                                 done(1);
  75
  76                         case FORMSW:
  77                                 if (!(form = *argp++) || *form == '-')
  78                                         adios(NULL, "missing argument to %s",
  79                                                         argp[-2]);
  80                                 continue;
  81
  82                         case WIDTHSW:
  83                                 if (!(cp = *argp++) || *cp == '-')
  84                                         adios(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(NULL, "missing argument to %s",
  92                                                         argp[-2]);
  93                                 if (strcmp(file = cp, "-")!=0)
  94                                         file = getcpy(expanddir(cp));
  95                                 continue;
  96                         }
  97                 }
  98                 if (*cp == '+' || *cp == '@') {
  99                         if (folder)
 100                                 adios(NULL, "only one folder at a time!");
 101                         else
 102                                 folder = getcpy(expandfol(cp));
 103                 } else
 104                         app_msgarg(&msgs, cp);
 105         }
 106
 107         /*
 108         ** Get new format string.  Must be before chdir().
 109         */
 110         nfs = new_fs(form, FORMAT);
 111
 112         /*
 113         ** We are scanning a maildrop file
 114         */
 115         if (file) {
 116                 if (msgs.size)
 117                         adios(NULL, "\"msgs\" not allowed with -file");
 118                 if (folder)
 119                         adios(NULL, "\"+folder\" not allowed with -file");
 120
 121                 /* check if "file" is really stdin */
 122                 if (strcmp(file, "-") == 0) {
 123                         in = stdin;
 124                         file = "stdin";
 125                 } else if (!(in = fopen(file, "r"))) {
 126                         adios(file, "unable to open");
 127                 }
 128
 129                 m_unknown(in);
 130                 for (msgnum = 1; ; ++msgnum) {
 131                         state = scan(in, msgnum, -1, nfs, width, 0, 0,
 132                                         NULL, 0L, 1);
 133                         if (state != SCNMSG && state != SCNENC)
 134                                 break;
 135                 }
 136                 fclose(in);
 137                 done(0);
 138         }
 139
 140         /*
 141         ** We are scanning a folder
 142         */
 143
 144         if (!msgs.size)
 145                 app_msgarg(&msgs, seq_all);
 146         if (!folder)
 147                 folder = getcurfol();
 148         maildir = toabsdir(folder);
 149
 150         if (chdir(maildir) == NOTOK)
 151                 adios(maildir, "unable to change directory to");
 152
 153         /* read folder and create message structure */
 154         if (!(mp = folder_read(folder)))
 155                 adios(NULL, "unable to read folder %s", folder);
 156
 157         /* check for empty folder */
 158         if (mp->nummsg == 0)
 159                 adios(NULL, "no messages in %s", folder);
 160
 161         /* parse all the message ranges/sequences and set SELECTED */
 162         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 163                 if (!m_convert(mp, msgs.msgs[msgnum]))
 164                         done(1);
 165         seq_setprev(mp);  /* set the Previous-Sequence */
 166
 167         context_replace(curfolder, folder);  /* update current folder */
 168         seq_save(mp);  /* synchronize message sequences */
 169         context_save();  /* save the context file */
 170
 171         /*
 172         ** Get the sequence number for each `unseen' sequence
 173         */
 174         if (!(cp = context_find(usequence))) {
 175                 cp = seq_unseen;  /* use default, if not set */
 176         }
 177         if (*cp) {
 178                 char **ap, *dp;
 179
 180                 dp = getcpy(cp);
 181                 ap = brkstring(dp, " ", "\n");
 182                 for (i = 0; ap && *ap; i++, ap++) {
 183                         seqnum[i] = seq_getnum(mp, *ap);
 184                 }
 185                 num_unseen_seq = i;
 186                 if (dp) {
 187                         free(dp);
 188                 }
 189         }
 190
 191         ontty = isatty(fileno(stdout));
 192
 193         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 194                 if (is_selected(mp, msgnum)) {
 195                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 196                                 admonish(cp, "unable to open message");
 197                                 continue;
 198                         }
 199
 200                         /*
 201                         ** Check if message is in any sequence given
 202                         ** by Unseen-Sequence profile entry.
 203                         */
 204                         unseen = 0;
 205                         for (i = 0; i < num_unseen_seq; i++) {
 206                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 207                                         unseen = 1;
 208                                         break;
 209                                 }
 210                         }
 211
 212                         switch (state = scan(in, msgnum, 0, nfs, width,
 213                                                 msgnum == mp->curmsg, unseen,
 214                                                 folder, 0L, 1)) {
 215                         case SCNMSG:
 216                         case SCNENC:
 217                         case SCNERR:
 218                                 break;
 219
 220                         default:
 221                                 adios(NULL, "scan() botch(%d)", state);
 222
 223                         case SCNEOF:
 224                                 advise(NULL, "message %d: empty", msgnum);
 225                                 break;
 226                         }
 227                         fclose(in);
 228                         if (ontty)
 229                                 fflush(stdout);
 230                 }
 231         }
 232
 233         folder_free(mp);  /* free folder/message structure */
 234
 235         done(0);
 236         return 1;
 237 }