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", argp[-2]);
 115                                         format = NULL;
 116                                         continue;
 117                                 case FMTSW:
 118                                         if (!(format = *argp++) ||
 119                                                         *format == '-')
 120                                                 adios(NULL, "missing argument to %s", argp[-2]);
 121                                         form = NULL;
 122                                         continue;
 123
 124                                 case HEADSW:
 125                                         hdrflag++;
 126                                         continue;
 127                                 case NHEADSW:
 128                                         hdrflag = 0;
 129                                         continue;
 130
 131                                 case WIDTHSW:
 132                                         if (!(cp = *argp++) || *cp == '-')
 133                                                 adios(NULL, "missing argument to %s", argp[-2]);
 134                                         width = atoi(cp);
 135                                         continue;
 136                                 case REVSW:
 137                                         revflag++;
 138                                         continue;
 139                                 case NREVSW:
 140                                         revflag = 0;
 141                                         continue;
 142
 143                                 case FILESW:
 144                                         if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
 145                                                 adios(NULL, "missing argument to %s", argp[-2]);
 146                                         if (strcmp(file = cp, "-")!=0)
 147                                                 file = getcpy(expanddir(cp));
 148                                         continue;
 149                         }
 150                 }
 151                 if (*cp == '+' || *cp == '@') {
 152                         if (folder)
 153                                 adios(NULL, "only one folder at a time!");
 154                         else
 155                                 folder = getcpy(expandfol(cp));
 156                 } else
 157                         app_msgarg(&msgs, cp);
 158         }
 159
 160         /*
 161         ** Get new format string.  Must be before chdir().
 162         */
 163         nfs = new_fs(form, format, FORMAT);
 164
 165         /*
 166         ** We are scanning a maildrop file
 167         */
 168         if (file) {
 169                 if (msgs.size)
 170                         adios(NULL, "\"msgs\" not allowed with -file");
 171                 if (folder)
 172                         adios(NULL, "\"+folder\" not allowed with -file");
 173
 174                 /* check if "file" is really stdin */
 175                 if (strcmp(file, "-") == 0) {
 176                         in = stdin;
 177                         file = "stdin";
 178                 } else if (!(in = fopen(file, "r"))) {
 179                         adios(file, "unable to open");
 180                 }
 181
 182 #ifndef JLR
 183                 if (hdrflag) {
 184                         printf("FOLDER %s\t%s\n", file, dtimenow(1));
 185                 }
 186 #endif /* JLR */
 187
 188                 m_unknown(in);
 189                 for (msgnum = 1; ; ++msgnum) {
 190                         state = scan(in, msgnum, -1, nfs, width, 0, 0,
 191                                         hdrflag ? file : NULL, 0L, 1);
 192                         if (state != SCNMSG && state != SCNENC)
 193                                 break;
 194                 }
 195                 fclose(in);
 196                 done(0);
 197         }
 198
 199         /*
 200         ** We are scanning a folder
 201         */
 202
 203         if (!msgs.size)
 204                 app_msgarg(&msgs, "all");
 205         if (!folder)
 206                 folder = getcurfol();
 207         maildir = toabsdir(folder);
 208
 209         if (chdir(maildir) == NOTOK)
 210                 adios(maildir, "unable to change directory to");
 211
 212         /* read folder and create message structure */
 213         if (!(mp = folder_read(folder)))
 214                 adios(NULL, "unable to read folder %s", folder);
 215
 216         /* check for empty folder */
 217         if (mp->nummsg == 0)
 218                 adios(NULL, "no messages in %s", folder);
 219
 220         /* parse all the message ranges/sequences and set SELECTED */
 221         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 222                 if (!m_convert(mp, msgs.msgs[msgnum]))
 223                         done(1);
 224         seq_setprev(mp);  /* set the Previous-Sequence */
 225
 226         context_replace(curfolder, folder);  /* update current folder */
 227         seq_save(mp);  /* synchronize message sequences */
 228         context_save();  /* save the context file */
 229
 230         /*
 231         ** Get the sequence number for each sequence
 232         ** specified by Unseen-Sequence
 233         */
 234         if ((cp = context_find(usequence)) && *cp) {
 235                 char **ap, *dp;
 236
 237                 dp = getcpy(cp);
 238                 ap = brkstring(dp, " ", "\n");
 239                 for (i = 0; ap && *ap; i++, ap++)
 240                         seqnum[i] = seq_getnum(mp, *ap);
 241
 242                 num_unseen_seq = i;
 243                 if (dp)
 244                         free(dp);
 245         }
 246
 247         ontty = isatty(fileno(stdout));
 248
 249 #ifdef LBL
 250         else
 251                 fmt_current_folder = mp;
 252 #endif
 253
 254         for (msgnum = revflag ? mp->hghsel : mp->lowsel;
 255                  (revflag ? msgnum >= mp->lowsel : msgnum <= mp->hghsel);
 256                  msgnum += (revflag ? -1 : 1)) {
 257                 if (is_selected(mp, msgnum)) {
 258                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 259 #if 0
 260                                 if (errno != EACCES)
 261 #endif
 262                                         admonish(cp, "unable to open message");
 263 #if 0
 264                                 else
 265                                         printf("%*d  unreadable\n",
 266                                                         DMAXFOLDER, msgnum);
 267 #endif
 268                                 continue;
 269                         }
 270
 271 #ifndef JLR
 272                         if (hdrflag) {
 273                                 printf("FOLDER %s\t%s\n", folder, dtimenow(1));
 274                         }
 275 #endif /* JLR */
 276
 277                         /*
 278                         ** Check if message is in any sequence given
 279                         ** by Unseen-Sequence profile entry.
 280                         */
 281                         unseen = 0;
 282                         for (i = 0; i < num_unseen_seq; i++) {
 283                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 284                                         unseen = 1;
 285                                         break;
 286                                 }
 287                         }
 288
 289                         switch (state = scan(in, msgnum, 0, nfs, width,
 290                                                 msgnum == mp->curmsg, unseen,
 291                                                 folder, 0L, 1)) {
 292                                 case SCNMSG:
 293                                 case SCNENC:
 294                                 case SCNERR:
 295                                         break;
 296
 297                                 default:
 298                                         adios(NULL, "scan() botch(%d)", state);
 299
 300                                 case SCNEOF:
 301 #if 0
 302                                         printf("%*d  empty\n", DMAXFOLDER,
 303                                                         msgnum);
 304 #else
 305                                         advise(NULL, "message %d: empty",
 306                                                         msgnum);
 307 #endif
 308                                         break;
 309                         }
 310                         hdrflag = 0;
 311                         fclose(in);
 312                         if (ontty)
 313                                 fflush(stdout);
 314                 }
 315         }
 316
 317 #ifdef LBL
 318         seq_save(mp);  /* because formatsbr might have made changes */
 319 #endif
 320
 321         folder_free(mp);  /* free folder/message structure */
 322         if (clearflag)
 323                 clear_screen();
 324
 325         done(0);
 326         return 1;
 327 }