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         setlocale(LC_ALL, "");
  45         invo_name = mhbasename(argv[0]);
  46
  47         /* read user profile/context */
  48         context_read();
  49
  50         arguments = getarguments(invo_name, argc, argv, 1);
  51         argp = arguments;
  52
  53         /*
  54         ** Parse arguments
  55         */
  56         while ((cp = *argp++)) {
  57                 if (*cp == '-') {
  58                         switch (smatch(++cp, switches)) {
  59                         case AMBIGSW:
  60                                 ambigsw(cp, switches);
  61                                 exit(1);
  62                         case UNKWNSW:
  63                                 adios(NULL, "-%s unknown", cp);
  64
  65                         case HELPSW:
  66                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  67                                 print_help(buf, switches, 1);
  68                                 exit(0);
  69                         case VERSIONSW:
  70                                 print_version(invo_name);
  71                                 exit(0);
  72
  73                         case FORMSW:
  74                                 if (!(form = *argp++) || *form == '-')
  75                                         adios(NULL, "missing argument to %s",
  76                                                         argp[-2]);
  77                                 continue;
  78
  79                         case WIDTHSW:
  80                                 if (!(cp = *argp++) || *cp == '-')
  81                                         adios(NULL, "missing argument to %s",
  82                                                         argp[-2]);
  83                                 width = atoi(cp);
  84                                 continue;
  85
  86                         case FILESW:
  87                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
  88                                         adios(NULL, "missing argument to %s",
  89                                                         argp[-2]);
  90                                 if (strcmp(file = cp, "-")!=0)
  91                                         file = getcpy(expanddir(cp));
  92                                 continue;
  93                         }
  94                 }
  95                 if (*cp == '+' || *cp == '@') {
  96                         if (folder)
  97                                 adios(NULL, "only one folder at a time!");
  98                         else
  99                                 folder = getcpy(expandfol(cp));
 100                 } else
 101                         app_msgarg(&msgs, cp);
 102         }
 103
 104         /*
 105         ** Get new format string.  Must be before chdir().
 106         */
 107         fmtstr = new_fs(form, FORMAT);
 108
 109         /*
 110         ** We are scanning a maildrop file
 111         */
 112         if (file) {
 113                 if (msgs.size)
 114                         adios(NULL, "\"msgs\" not allowed with -file");
 115                 if (folder)
 116                         adios(NULL, "\"+folder\" not allowed with -file");
 117
 118                 /* check if "file" is really stdin */
 119                 if (strcmp(file, "-") == 0) {
 120                         in = stdin;
 121                         file = "stdin";
 122                 } else if (!(in = fopen(file, "r"))) {
 123                         adios(file, "unable to open");
 124                 }
 125
 126                 thisisanmbox(in);
 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(0);
 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(maildir, "unable to change directory to");
 148
 149         /* read folder and create message structure */
 150         if (!(mp = folder_read(folder)))
 151                 adios(NULL, "unable to read folder %s", folder);
 152
 153         /* check for empty folder */
 154         if (mp->nummsg == 0)
 155                 adios(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(1);
 161         seq_setprev(mp);  /* set the Previous-Sequence */
 162
 163         context_replace(curfolder, folder);  /* update current folder */
 164         seq_save(mp);  /* synchronize message sequences */
 165         context_save();  /* save the context file */
 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 = getcpy(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                         free(dp);
 184                 }
 185         }
 186
 187         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 188                 if (is_selected(mp, msgnum)) {
 189                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 190                                 admonish(cp, "unable to open message");
 191                                 continue;
 192                         }
 193
 194                         /*
 195                         ** Check if message is in any sequence given
 196                         ** by Unseen-Sequence profile entry.
 197                         */
 198                         unseen = 0;
 199                         for (i = 0; i < num_unseen_seq; i++) {
 200                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 201                                         unseen = 1;
 202                                         break;
 203                                 }
 204                         }
 205
 206                         switch (state = scan(in, msgnum, SCN_FOLD, fmtstr,
 207                                         width, msgnum==mp->curmsg, unseen)) {
 208                         case SCNMSG:
 209                         case SCNERR:
 210                                 break;
 211
 212                         default:
 213                                 adios(NULL, "scan() botch(%d)", state);
 214
 215                         case SCNEOF:
 216                                 advise(NULL, "message %d: empty", msgnum);
 217                                 break;
 218                         }
 219                         fclose(in);
 220                 }
 221         }
 222
 223         folder_free(mp);  /* free folder/message structure */
 224
 225         return 0;
 226 }