2.9BSD - /usr/src/ucb/vsh/options.c

   1: #include "hd.h"
   2: #include "command.h"
   3: 
   4: #define MAXLINE 16
   5: 
   6: /* Print and modify command tables interactively */
   7: 
   8: options (parm) char **parm; {
   9: 
  10:     int line = 0;       /* Current line number */
  11:     register struct cmdstruct *cmdp;
  12:     register struct classstruct *classp;
  13:     register char **argv;
  14:     struct parmstruct *parmp;
  15: 
  16:     /* Print command tab in .vshrc format */
  17:     /* If parm present, dump to file and quit */
  18:     erase ();
  19:     if (*parm) {
  20:         close (1);  creat ("vsh.out", 0644);  line= -9999;
  21:     }
  22:     for (;;) {
  23:         for (cmdp = cmdtab; cmdp->cmd_char >= 0; cmdp++) {
  24:             if (cmdp->cmd_proc) {
  25:                 for (classp = classtab;
  26:                     *classp->cl_name &&
  27:                     classp->cl_proc !=
  28:                     cmdp->cmd_proc;
  29:                     classp++);
  30: 
  31:                 printf ("%c\t%s", cmdp->cmd_char,
  32:                     classp->cl_name);
  33: 
  34:                 for (argv = cmdp->cmd_argv; *argv;)
  35:                     printf ("  %s", *argv++);
  36: 
  37:                 if (optline (&line) == FAILURE)
  38:                     return REPLOT;
  39:             }
  40:         }
  41:         for (parmp = parmtab; parmp->p_name; parmp++) {
  42:             printf ("%s\t%s", parmp->p_name, parmp->p_val);
  43:             if (optline (&line) == FAILURE) return REPLOT;
  44:         }
  45: 
  46:         if (*parm) leave ();
  47:         if (line != 0 && optcmd () == FAILURE) break;
  48:         erase ();  line = 0;
  49:     }
  50:     return REPLOT;
  51: }
  52: /* Processing for end of each line includes:
  53: 	1.  Print the newline.
  54: 	2.  If the end of the page, prompt for a command.
  55: */
  56: optline (line) int *line; {
  57:     int ret;    /* return from optcmd */
  58: 
  59:     putch (LF);
  60:     if (++*line < MAXLINE) return SUCCESS;
  61: 
  62:     ret = optcmd (); erase ();  *line = 0;
  63:     return ret;
  64: }
  65: 
  66: optcmd () {
  67:     char cbuf [STRMAX], /* Buffer for input parm */
  68:          *argv [ARGVMAX];   /* Pointers to input parm */
  69:     int argc;       /* Number of parm */
  70:     int ret;        /* Return from readarg */
  71: 
  72:     int line = 0;       /* Current line num of rcstream */
  73: 
  74:     printf ("\nType in a new parameter, or\n\
  75: Press ^D to leave.  Press -Return- to display more parameters.\n");
  76:     for (;;) {
  77:         tty_push (COOKEDMODE);
  78:         ret = readarg (stdin, &line, &argc, argv, cbuf);
  79:         tty_pop ();
  80:         if (argc == 0) break;
  81:         if (compe ("quit", argv [0])) {
  82:             ret = FAILURE;  break;
  83:         }
  84:         if (ret != FAILURE) cmdldarg (line, argc, argv);
  85:     }
  86:     return ret;
  87: }

Defined functions

Defined macros