diplodocus.org Git - nmh/blob - docs/historical/mh-nov-1983/cmds/show.c

   1 #include "mh.h"
   2 #include <stdio.h>
   3 #include <strings.h>
   4
   5 int vecp;
   6 char *vec[MAXARGS];
   7 struct msgs *mp;
   8 struct swit switches[] = {
   9         "all",         -3,      /* 0 */
  10         "draft",        2,      /* 1 */
  11         "pr",           2,      /* 2 */
  12         "nopr",         2,      /* 3 */
  13         "help",         4,      /* 4 */
  14         0,              0
  15 };
  16
  17 main(argc, argv)
  18 char *argv[];
  19 {
  20         char *folder, *maildir, *msgs[100];
  21         register int msgnum;
  22         register char *cp, **ap;
  23         int msgp, all, drft, pr;
  24         char *arguments[50], **argp;
  25         extern char _sobuf[];
  26
  27         setbuf(stdout, _sobuf);
  28 #ifdef NEWS
  29         m_news();
  30 #endif
  31         folder = (char *) 0;
  32         pr = all = msgp = 0;
  33         vecp = 1;
  34         cp = r1bindex(argv[0], '/');
  35         if((cp = m_find(cp)) != NULL) {
  36                 ap = brkstring(cp = getcpy(cp), " ", "\n");
  37                 ap = copyip(ap, arguments);
  38         } else
  39                 ap = arguments;
  40         copyip(argv+1, ap);
  41         argp = arguments;
  42         while(cp = *argp++) {
  43                 if(*cp == '-')
  44                         switch(smatch(++cp, switches)) {
  45                         case -2:ambigsw(cp, switches);       /* ambiguous */
  46                                 goto leave;
  47                                                              /* unknown */
  48                         case -1:vec[vecp++] = --cp;  continue;
  49                                                              /* -all   */
  50                         case 0: fprintf(stderr, "\"-all\" changed to \"all\"\n");
  51                                 goto leave;
  52                         case 1: drft = 1;  continue;         /* -draft */
  53                         case 2: pr = 1;  continue;           /* -pr    */
  54                         case 3: pr = 0;  vecp = 1;  continue;/* -nopr  */
  55                         case 4:                              /* -help  */
  56   help("show [+folder]  [msgs] [switches] [switches for \"type\" or \"pr\" ]",
  57                                      switches);
  58                                 goto leave;
  59                         }
  60                 if(*cp == '+') {
  61                         if(folder) {
  62                                 fprintf(stderr, "Only one folder at a time.\n");
  63                                 goto leave;
  64                         } else
  65                                 folder = cp + 1;
  66                 } else
  67                         msgs[msgp++] = cp;
  68         }
  69         if(drft)
  70                 maildir = m_maildir("");
  71         else {
  72                 if(!msgp)
  73                         msgs[msgp++] = "cur";
  74                 if(!folder)
  75                         folder = m_getfolder();
  76                 maildir = m_maildir(folder);
  77         }
  78         if(chdir(maildir) < 0) {
  79                 fprintf(stderr, "Can't chdir to: ");
  80                 perror(maildir);
  81                 goto leave;
  82         }
  83         if(drft) {
  84                 vec[vecp++] = draft;
  85                 goto doit;
  86         }
  87         if(!(mp = m_gmsg(folder))) {
  88                 fprintf(stderr, "Can't read folder!?\n");
  89                 goto leave;
  90         }
  91         if(mp->hghmsg == 0) {
  92                 fprintf(stderr, "No messages in \"%s\".\n", folder);
  93                 goto leave;
  94         }
  95         if(msgp)
  96                 for(msgnum = 0; msgnum < msgp; msgnum++)
  97                         if(!m_convert(msgs[msgnum]))
  98                                 goto leave;
  99         if(mp->numsel == 0) {
 100                 fprintf(stderr, "show: potato pancakes.\n");     /* never get here */
 101                 goto leave;
 102         }
 103         if(mp->numsel > MAXARGS-2) {
 104   fprintf(stderr, "show: more than %d messages for show-exec\n", MAXARGS-2);
 105                 goto leave;
 106         }
 107         for(msgnum= mp->lowsel; msgnum<= mp->hghsel; msgnum++)
 108                 if(mp->msgstats[msgnum]&SELECTED)
 109                         vec[vecp++] = getcpy(m_name(msgnum));
 110         m_replace(pfolder, folder);
 111         if(mp->hghsel != mp->curmsg)
 112                 m_setcur(mp->hghsel);
 113         if(vecp == 2 ) {
 114                 printf("(Message %s:%s)\n", folder, vec[1]);
 115         }
 116 doit:   m_update();
 117         fflush(stdout);
 118         vec[vecp] = 0;
 119         if(!pr) {
 120                 vec[0] = "c:mh-type";
 121                 execv(showproc, vec);
 122         } else {
 123                 vec[0] = "mh-pr";
 124                 execv(prproc, vec);
 125         }
 126         perror(pr ? prproc : showproc);
 127  leave:
 128         m_update();
 129         done(0);
 130 }
 131
 132