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 CLRSW  0
  18         { "clear", 0 },
  19 #define NCLRSW  1
  20         { "noclear", 0 },
  21 #define FORMSW  2
  22         { "form formatfile", 0 },
  23 #define WIDTHSW  3
  24         { "width columns", 0 },
  25 #define FILESW  4
  26         { "file file", 4 },
  27 #define VERSIONSW 5
  28         { "version", 0 },
  29 #define HELPSW  6
  30         { "help", 0 },
  31         { NULL, 0 }
  32 };
  33
  34
  35 /*
  36 ** prototypes
  37 */
  38 void clear_screen(void);  /* from termsbr.c */
  39
  40
  41 int
  42 main(int argc, char **argv)
  43 {
  44         int clearflag = 0, ontty;
  45         int width = 0;
  46         int i, state, msgnum;
  47         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  48         char *cp, *maildir, *file = NULL, *folder = NULL;
  49         char *form = NULL, buf[BUFSIZ];
  50         char **argp, *nfs, **arguments;
  51         struct msgs_array msgs = { 0, 0, NULL };
  52         struct msgs *mp;
  53         FILE *in;
  54
  55 #ifdef LOCALE
  56         setlocale(LC_ALL, "");
  57 #endif
  58         invo_name = mhbasename(argv[0]);
  59
  60         /* read user profile/context */
  61         context_read();
  62
  63         arguments = getarguments(invo_name, argc, argv, 1);
  64         argp = arguments;
  65
  66         /*
  67         ** Parse arguments
  68         */
  69         while ((cp = *argp++)) {
  70                 if (*cp == '-') {
  71                         switch (smatch(++cp, switches)) {
  72                         case AMBIGSW:
  73                                 ambigsw(cp, switches);
  74                                 done(1);
  75                         case UNKWNSW:
  76                                 adios(NULL, "-%s unknown", cp);
  77
  78                         case HELPSW:
  79                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  80                                 print_help(buf, switches, 1);
  81                                 done(1);
  82                         case VERSIONSW:
  83                                 print_version(invo_name);
  84                                 done(1);
  85
  86                         case CLRSW:
  87                                 clearflag++;
  88                                 continue;
  89                         case NCLRSW:
  90                                 clearflag = 0;
  91                                 continue;
  92
  93                         case FORMSW:
  94                                 if (!(form = *argp++) || *form == '-')
  95                                         adios(NULL, "missing argument to %s",
  96                                                         argp[-2]);
  97                                 continue;
  98
  99                         case WIDTHSW:
 100                                 if (!(cp = *argp++) || *cp == '-')
 101                                         adios(NULL, "missing argument to %s",
 102                                                         argp[-2]);
 103                                 width = atoi(cp);
 104                                 continue;
 105
 106                         case FILESW:
 107                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
 108                                         adios(NULL, "missing argument to %s",
 109                                                         argp[-2]);
 110                                 if (strcmp(file = cp, "-")!=0)
 111                                         file = getcpy(expanddir(cp));
 112                                 continue;
 113                         }
 114                 }
 115                 if (*cp == '+' || *cp == '@') {
 116                         if (folder)
 117                                 adios(NULL, "only one folder at a time!");
 118                         else
 119                                 folder = getcpy(expandfol(cp));
 120                 } else
 121                         app_msgarg(&msgs, cp);
 122         }
 123
 124         /*
 125         ** Get new format string.  Must be before chdir().
 126         */
 127         nfs = new_fs(form, FORMAT);
 128
 129         /*
 130         ** We are scanning a maildrop file
 131         */
 132         if (file) {
 133                 if (msgs.size)
 134                         adios(NULL, "\"msgs\" not allowed with -file");
 135                 if (folder)
 136                         adios(NULL, "\"+folder\" not allowed with -file");
 137
 138                 /* check if "file" is really stdin */
 139                 if (strcmp(file, "-") == 0) {
 140                         in = stdin;
 141                         file = "stdin";
 142                 } else if (!(in = fopen(file, "r"))) {
 143                         adios(file, "unable to open");
 144                 }
 145
 146                 m_unknown(in);
 147                 for (msgnum = 1; ; ++msgnum) {
 148                         state = scan(in, msgnum, -1, nfs, width, 0, 0,
 149                                         NULL, 0L, 1);
 150                         if (state != SCNMSG && state != SCNENC)
 151                                 break;
 152                 }
 153                 fclose(in);
 154                 done(0);
 155         }
 156
 157         /*
 158         ** We are scanning a folder
 159         */
 160
 161         if (!msgs.size)
 162                 app_msgarg(&msgs, seq_all);
 163         if (!folder)
 164                 folder = getcurfol();
 165         maildir = toabsdir(folder);
 166
 167         if (chdir(maildir) == NOTOK)
 168                 adios(maildir, "unable to change directory to");
 169
 170         /* read folder and create message structure */
 171         if (!(mp = folder_read(folder)))
 172                 adios(NULL, "unable to read folder %s", folder);
 173
 174         /* check for empty folder */
 175         if (mp->nummsg == 0)
 176                 adios(NULL, "no messages in %s", folder);
 177
 178         /* parse all the message ranges/sequences and set SELECTED */
 179         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 180                 if (!m_convert(mp, msgs.msgs[msgnum]))
 181                         done(1);
 182         seq_setprev(mp);  /* set the Previous-Sequence */
 183
 184         context_replace(curfolder, folder);  /* update current folder */
 185         seq_save(mp);  /* synchronize message sequences */
 186         context_save();  /* save the context file */
 187
 188         /*
 189         ** Get the sequence number for each `unseen' sequence
 190         */
 191         if (!(cp = context_find(usequence))) {
 192                 cp = seq_unseen;  /* use default, if not set */
 193         }
 194         if (*cp) {
 195                 char **ap, *dp;
 196
 197                 dp = getcpy(cp);
 198                 ap = brkstring(dp, " ", "\n");
 199                 for (i = 0; ap && *ap; i++, ap++) {
 200                         seqnum[i] = seq_getnum(mp, *ap);
 201                 }
 202                 num_unseen_seq = i;
 203                 if (dp) {
 204                         free(dp);
 205                 }
 206         }
 207
 208         ontty = isatty(fileno(stdout));
 209
 210         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 211                 if (is_selected(mp, msgnum)) {
 212                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 213                                 admonish(cp, "unable to open message");
 214                                 continue;
 215                         }
 216
 217                         /*
 218                         ** Check if message is in any sequence given
 219                         ** by Unseen-Sequence profile entry.
 220                         */
 221                         unseen = 0;
 222                         for (i = 0; i < num_unseen_seq; i++) {
 223                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 224                                         unseen = 1;
 225                                         break;
 226                                 }
 227                         }
 228
 229                         switch (state = scan(in, msgnum, 0, nfs, width,
 230                                                 msgnum == mp->curmsg, unseen,
 231                                                 folder, 0L, 1)) {
 232                         case SCNMSG:
 233                         case SCNENC:
 234                         case SCNERR:
 235                                 break;
 236
 237                         default:
 238                                 adios(NULL, "scan() botch(%d)", state);
 239
 240                         case SCNEOF:
 241                                 advise(NULL, "message %d: empty", msgnum);
 242                                 break;
 243                         }
 244                         fclose(in);
 245                         if (ontty)
 246                                 fflush(stdout);
 247                 }
 248         }
 249
 250         folder_free(mp);  /* free folder/message structure */
 251         if (clearflag)
 252                 clear_screen();
 253
 254         done(0);
 255         return 1;
 256 }