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