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