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 FMTSW  3
  24         { "format string", 5 },
  25 #define WIDTHSW  4
  26         { "width columns", 0 },
  27 #define FILESW  5
  28         { "file file", 4 },
  29 #define VERSIONSW 6
  30         { "version", 0 },
  31 #define HELPSW  7
  32         { "help", 0 },
  33         { NULL, 0 }
  34 };
  35
  36
  37 /*
  38 ** prototypes
  39 */
  40 void clear_screen(void);  /* from termsbr.c */
  41
  42
  43 int
  44 main(int argc, char **argv)
  45 {
  46         int clearflag = 0, ontty;
  47         int width = 0;
  48         int i, state, msgnum;
  49         int seqnum[NUMATTRS], unseen, num_unseen_seq = 0;
  50         char *cp, *maildir, *file = NULL, *folder = NULL;
  51         char *form = NULL, *format = NULL, buf[BUFSIZ];
  52         char **argp, *nfs, **arguments;
  53         struct msgs_array msgs = { 0, 0, NULL };
  54         struct msgs *mp;
  55         FILE *in;
  56
  57 #ifdef LOCALE
  58         setlocale(LC_ALL, "");
  59 #endif
  60         invo_name = mhbasename(argv[0]);
  61
  62         /* read user profile/context */
  63         context_read();
  64
  65         arguments = getarguments(invo_name, argc, argv, 1);
  66         argp = arguments;
  67
  68         /*
  69         ** Parse arguments
  70         */
  71         while ((cp = *argp++)) {
  72                 if (*cp == '-') {
  73                         switch (smatch(++cp, switches)) {
  74                         case AMBIGSW:
  75                                 ambigsw(cp, switches);
  76                                 done(1);
  77                         case UNKWNSW:
  78                                 adios(NULL, "-%s unknown", cp);
  79
  80                         case HELPSW:
  81                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  82                                 print_help(buf, switches, 1);
  83                                 done(1);
  84                         case VERSIONSW:
  85                                 print_version(invo_name);
  86                                 done(1);
  87
  88                         case CLRSW:
  89                                 clearflag++;
  90                                 continue;
  91                         case NCLRSW:
  92                                 clearflag = 0;
  93                                 continue;
  94
  95                         case FORMSW:
  96                                 if (!(form = *argp++) || *form == '-')
  97                                         adios(NULL, "missing argument to %s",
  98                                                         argp[-2]);
  99                                 format = NULL;
 100                                 continue;
 101                         case FMTSW:
 102                                 if (!(format = *argp++) || *format == '-')
 103                                         adios(NULL, "missing argument to %s",
 104                                                         argp[-2]);
 105                                 form = NULL;
 106                                 continue;
 107
 108                         case WIDTHSW:
 109                                 if (!(cp = *argp++) || *cp == '-')
 110                                         adios(NULL, "missing argument to %s",
 111                                                         argp[-2]);
 112                                 width = atoi(cp);
 113                                 continue;
 114
 115                         case FILESW:
 116                                 if (!(cp = *argp++) || (cp[0] == '-' && cp[1]))
 117                                         adios(NULL, "missing argument to %s",
 118                                                         argp[-2]);
 119                                 if (strcmp(file = cp, "-")!=0)
 120                                         file = getcpy(expanddir(cp));
 121                                 continue;
 122                         }
 123                 }
 124                 if (*cp == '+' || *cp == '@') {
 125                         if (folder)
 126                                 adios(NULL, "only one folder at a time!");
 127                         else
 128                                 folder = getcpy(expandfol(cp));
 129                 } else
 130                         app_msgarg(&msgs, cp);
 131         }
 132
 133         /*
 134         ** Get new format string.  Must be before chdir().
 135         */
 136         nfs = new_fs(form, format, NULL, FORMAT);
 137
 138         /*
 139         ** We are scanning a maildrop file
 140         */
 141         if (file) {
 142                 if (msgs.size)
 143                         adios(NULL, "\"msgs\" not allowed with -file");
 144                 if (folder)
 145                         adios(NULL, "\"+folder\" not allowed with -file");
 146
 147                 /* check if "file" is really stdin */
 148                 if (strcmp(file, "-") == 0) {
 149                         in = stdin;
 150                         file = "stdin";
 151                 } else if (!(in = fopen(file, "r"))) {
 152                         adios(file, "unable to open");
 153                 }
 154
 155                 m_unknown(in);
 156                 for (msgnum = 1; ; ++msgnum) {
 157                         state = scan(in, msgnum, -1, nfs, width, 0, 0,
 158                                         NULL, 0L, 1);
 159                         if (state != SCNMSG && state != SCNENC)
 160                                 break;
 161                 }
 162                 fclose(in);
 163                 done(0);
 164         }
 165
 166         /*
 167         ** We are scanning a folder
 168         */
 169
 170         if (!msgs.size)
 171                 app_msgarg(&msgs, seq_all);
 172         if (!folder)
 173                 folder = getcurfol();
 174         maildir = toabsdir(folder);
 175
 176         if (chdir(maildir) == NOTOK)
 177                 adios(maildir, "unable to change directory to");
 178
 179         /* read folder and create message structure */
 180         if (!(mp = folder_read(folder)))
 181                 adios(NULL, "unable to read folder %s", folder);
 182
 183         /* check for empty folder */
 184         if (mp->nummsg == 0)
 185                 adios(NULL, "no messages in %s", folder);
 186
 187         /* parse all the message ranges/sequences and set SELECTED */
 188         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 189                 if (!m_convert(mp, msgs.msgs[msgnum]))
 190                         done(1);
 191         seq_setprev(mp);  /* set the Previous-Sequence */
 192
 193         context_replace(curfolder, folder);  /* update current folder */
 194         seq_save(mp);  /* synchronize message sequences */
 195         context_save();  /* save the context file */
 196
 197         /*
 198         ** Get the sequence number for each `unseen' sequence
 199         */
 200         if (!(cp = context_find(usequence))) {
 201                 cp = seq_unseen;  /* use default, if not set */
 202         }
 203         if (*cp) {
 204                 char **ap, *dp;
 205
 206                 dp = getcpy(cp);
 207                 ap = brkstring(dp, " ", "\n");
 208                 for (i = 0; ap && *ap; i++, ap++) {
 209                         seqnum[i] = seq_getnum(mp, *ap);
 210                 }
 211                 num_unseen_seq = i;
 212                 if (dp) {
 213                         free(dp);
 214                 }
 215         }
 216
 217         ontty = isatty(fileno(stdout));
 218
 219         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 220                 if (is_selected(mp, msgnum)) {
 221                         if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 222                                 admonish(cp, "unable to open message");
 223                                 continue;
 224                         }
 225
 226                         /*
 227                         ** Check if message is in any sequence given
 228                         ** by Unseen-Sequence profile entry.
 229                         */
 230                         unseen = 0;
 231                         for (i = 0; i < num_unseen_seq; i++) {
 232                                 if (in_sequence(mp, seqnum[i], msgnum)) {
 233                                         unseen = 1;
 234                                         break;
 235                                 }
 236                         }
 237
 238                         switch (state = scan(in, msgnum, 0, nfs, width,
 239                                                 msgnum == mp->curmsg, unseen,
 240                                                 folder, 0L, 1)) {
 241                         case SCNMSG:
 242                         case SCNENC:
 243                         case SCNERR:
 244                                 break;
 245
 246                         default:
 247                                 adios(NULL, "scan() botch(%d)", state);
 248
 249                         case SCNEOF:
 250                                 advise(NULL, "message %d: empty", msgnum);
 251                                 break;
 252                         }
 253                         fclose(in);
 254                         if (ontty)
 255                                 fflush(stdout);
 256                 }
 257         }
 258
 259         folder_free(mp);  /* free folder/message structure */
 260         if (clearflag)
 261                 clear_screen();
 262
 263         done(0);
 264         return 1;
 265 }