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/mts.h>
  14 #include <h/utils.h>
  15 #include <errno.h>
  16
  17 static struct swit switches[] = {
  18 #define CLRSW  0
  19         { "clear", 0 },
  20 #define NCLRSW  1
  21         { "noclear", 0 },
  22 #define FORMSW  2
  23         { "form formatfile", 0 },
  24 #define FMTSW  3
  25         { "format string", 5 },
  26 #define HEADSW  4
  27         { "header", 0 },
  28 #define NHEADSW  5
  29         { "noheader", 0 },
  30 #define WIDTHSW  6
  31         { "width columns", 0 },
  32 #define REVSW  7
  33         { "reverse", 0 },
  34 #define NREVSW  8
  35         { "noreverse", 0 },
  36 #define FILESW  9
  37         { "file file", 4 },
  38 #define VERSIONSW 10
  39         { "version", 0 },
  40 #define HELPSW  11
  41         { "help", 0 },
  42         { NULL, 0 }
  43 };
  44
  45
  46 /*
  47 ** global for sbr/formatsbr.c - yech!
  48 */
  49 #ifdef LBL
  50 extern struct msgs *fmt_current_folder;
  51 #endif
  52
  53 /*
  54 ** prototypes
  55 */
  56 void clear_screen(void);  /* from termsbr.c */
  57
  58
  59 int
  60 main(int argc, char **argv)
  61 {
  62         int clearflag = 0, hdrflag = 0, ontty;
  63         int width = 0, revflag = 0;
  64         int i, state, msgnum;
  65         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  66         char *cp, *maildir, *file = NULL, *folder = NULL;
  67         char *form = NULL, *format = NULL, buf[BUFSIZ];
  68         char **argp, *nfs, **arguments;
  69         struct msgs_array msgs = { 0, 0, NULL };
  70         struct msgs *mp;
  71         FILE *in;
  72
  73 #ifdef LOCALE
  74         setlocale(LC_ALL, "");
  75 #endif
  76         invo_name = mhbasename(argv[0]);
  77
  78         /* read user profile/context */
  79         context_read();
  80
  81         mts_init(invo_name);
  82         arguments = getarguments(invo_name, argc, argv, 1);
  83         argp = arguments;
  84
  85         /*
  86         ** Parse arguments
  87         */
  88         while ((cp = *argp++)) {
  89                 if (*cp == '-') {
  90                         switch (smatch(++cp, switches)) {
  91                         case AMBIGSW:
  92                                 ambigsw(cp, switches);
  93                                 done(1);
  94                         case UNKWNSW:
  95                                 adios(NULL, "-%s unknown", cp);
  96
  97                         case HELPSW:
  98                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  99                                 print_help(buf, switches, 1);
 100                                 done(1);
 101                         case VERSIONSW:
 102                                 print_version(invo_name);
 103                                 done(1);
 104
 105                         case CLRSW:
 106                                 clearflag++;
 107                                 continue;
 108                         case NCLRSW:
 109                                 clearflag = 0;
 110                                 continue;
 111
 112                         case FORMSW:
 113                                 if (!(form = *argp++) || *form == '-')
 114                                         adios(NULL, "missing argument to %s",
 115                                                         argp[-2]);
 116                                 format = NULL;
 117                                 continue;
 118                         case FMTSW:
 119                                 if (!(format = *argp++) || *format == '-')
 120                                         adios(NULL, "missing argument to %s",
 121                                                         argp[-2]);
 122                                 form = NULL;
 123                                 continue;
 124
 125                         case HEADSW:
 126                                 hdrflag++;
 127                                 continue;
 128                         case NHEADSW:
 129                                 hdrflag = 0;
 130                                 continue;
 131
 132                         case WIDTHSW:
 133                                 if (!(cp = *argp++) || *cp == '-')
 134                                         adios(NULL, "missing argument to %s",
 135                                                         argp[-2]);
 136                                 width = atoi(cp);
 137                                 continue;
 138                         case REVSW:
 139                                 revflag++;
 140                                 continue;
 141                         case NREVSW:
 142                                 revflag = 0;
 143                                 continue;
 144
 145                         case FILESW:
 146                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
 147                                         adios(NULL, "missing argument to %s",
 148                                                         argp[-2]);
 149                                 if (strcmp(file = cp, "-")!=0)
 150                                         file = getcpy(expanddir(cp));
 151                                 continue;
 152                         }
 153                 }
 154                 if (*cp == '+' || *cp == '@') {
 155                         if (folder)
 156                                 adios(NULL, "only one folder at a time!");
 157                         else
 158                                 folder = getcpy(expandfol(cp));
 159                 } else
 160                         app_msgarg(&msgs, cp);
 161         }
 162
 163         /*
 164         ** Get new format string.  Must be before chdir().
 165         */
 166         nfs = new_fs(form, format, FORMAT);
 167
 168         /*
 169         ** We are scanning a maildrop file
 170         */
 171         if (file) {
 172                 if (msgs.size)
 173                         adios(NULL, "\"msgs\" not allowed with -file");
 174                 if (folder)
 175                         adios(NULL, "\"+folder\" not allowed with -file");
 176
 177                 /* check if "file" is really stdin */
 178                 if (strcmp(file, "-") == 0) {
 179                         in = stdin;
 180                         file = "stdin";
 181                 } else if (!(in = fopen(file, "r"))) {
 182                         adios(file, "unable to open");
 183                 }
 184
 185 #ifndef JLR
 186                 if (hdrflag) {
 187                         printf("FOLDER %s\t%s\n", file, dtimenow(1));
 188                 }
 189 #endif /* JLR */
 190
 191                 m_unknown(in);
 192                 for (msgnum = 1; ; ++msgnum) {
 193                         state = scan(in, msgnum, -1, nfs, width, 0, 0,
 194                                         hdrflag ? file : NULL, 0L, 1);
 195                         if (state != SCNMSG && state != SCNENC)
 196                                 break;
 197                 }
 198                 fclose(in);
 199                 done(0);
 200         }
 201
 202         /*
 203         ** We are scanning a folder
 204         */
 205
 206         if (!msgs.size)
 207                 app_msgarg(&msgs, "all");
 208         if (!folder)
 209                 folder = getcurfol();
 210         maildir = toabsdir(folder);
 211
 212         if (chdir(maildir) == NOTOK)
 213                 adios(maildir, "unable to change directory to");
 214
 215         /* read folder and create message structure */
 216         if (!(mp = folder_read(folder)))
 217                 adios(NULL, "unable to read folder %s", folder);
 218
 219         /* check for empty folder */
 220         if (mp->nummsg == 0)
 221                 adios(NULL, "no messages in %s", folder);
 222
 223         /* parse all the message ranges/sequences and set SELECTED */
 224         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 225                 if (!m_convert(mp, msgs.msgs[msgnum]))
 226                         done(1);
 227         seq_setprev(mp);  /* set the Previous-Sequence */
 228
 229         context_replace(curfolder, folder);  /* update current folder */
 230         seq_save(mp);  /* synchronize message sequences */
 231         context_save();  /* save the context file */
 232
 233         /*
 234         ** Get the sequence number for each sequence
 235         ** specified by Unseen-Sequence
 236         */
 237         if ((cp = context_find(usequence)) && *cp) {
 238                 char **ap, *dp;
 239
 240                 dp = getcpy(cp);
 241                 ap = brkstring(dp, " ", "\n");
 242                 for (i = 0; ap && *ap; i++, ap++)
 243                         seqnum[i] = seq_getnum(mp, *ap);
 244
 245                 num_unseen_seq = i;
 246                 if (dp)
 247                         free(dp);
 248         }
 249
 250         ontty = isatty(fileno(stdout));
 251
 252 #ifdef LBL
 253         else
 254                 fmt_current_folder = mp;
 255 #endif
 256
 257         for (msgnum = revflag ? mp->hghsel : mp->lowsel;
 258                  (revflag ? msgnum >= mp->lowsel : msgnum <= mp->hghsel);
 259                  msgnum += (revflag ? -1 : 1)) {
 260                 if (is_selected(mp, msgnum)) {
 261                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 262 #if 0
 263                                 if (errno != EACCES)
 264 #endif
 265                                         admonish(cp, "unable to open message");
 266 #if 0
 267                                 else
 268                                         printf("%*d  unreadable\n",
 269                                                         DMAXFOLDER, msgnum);
 270 #endif
 271                                 continue;
 272                         }
 273
 274 #ifndef JLR
 275                         if (hdrflag) {
 276                                 printf("FOLDER %s\t%s\n", folder, dtimenow(1));
 277                         }
 278 #endif /* JLR */
 279
 280                         /*
 281                         ** Check if message is in any sequence given
 282                         ** by Unseen-Sequence profile entry.
 283                         */
 284                         unseen = 0;
 285                         for (i = 0; i < num_unseen_seq; i++) {
 286                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 287                                         unseen = 1;
 288                                         break;
 289                                 }
 290                         }
 291
 292                         switch (state = scan(in, msgnum, 0, nfs, width,
 293                                                 msgnum == mp->curmsg, unseen,
 294                                                 folder, 0L, 1)) {
 295                         case SCNMSG:
 296                         case SCNENC:
 297                         case SCNERR:
 298                                 break;
 299
 300                         default:
 301                                 adios(NULL, "scan() botch(%d)", state);
 302
 303                         case SCNEOF:
 304 #if 0
 305                                 printf("%*d  empty\n", DMAXFOLDER, msgnum);
 306 #else
 307                                 advise(NULL, "message %d: empty", msgnum);
 308 #endif
 309                                 break;
 310                         }
 311                         hdrflag = 0;
 312                         fclose(in);
 313                         if (ontty)
 314                                 fflush(stdout);
 315                 }
 316         }
 317
 318 #ifdef LBL
 319         seq_save(mp);  /* because formatsbr might have made changes */
 320 #endif
 321
 322         folder_free(mp);  /* free folder/message structure */
 323         if (clearflag)
 324                 clear_screen();
 325
 326         done(0);
 327         return 1;
 328 }