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