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