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