Example #1
0
int XttTbl::command( char* input_str)
{
  char     	command[1000];
  int		sts, sym_sts;
  char		symbol_value[DCLI_SYM_VALUE_SIZE];


  if ( input_str[0] == '@')
  {
    sts = dcli_replace_symbol( input_str, command, sizeof(command));
    if (EVEN(sts)) return sts;

    /* Read command file */
    sts = readcmdfile( &command[1]);
    if ( sts == DCLI__NOFILE)
    {
      message('E',"Unable to open file");
      return DCLI__SUCCESS;
    }
    else if ( EVEN(sts)) return sts;
    return DCLI__SUCCESS;
  }
  dcli_toupper( input_str, input_str);
  sts = dcli_replace_symbol( input_str, command, sizeof(command));
  if ( EVEN(sts)) return sts;

  sts = dcli_cli( (dcli_tCmdTable *)&xtttbl_command_table, command, (void *) this, 0);
  if ( sts == DCLI__COM_NODEF)
  {
    /* Try to find a matching symbol */
    sym_sts = dcli_get_symbol_cmd( command, symbol_value);
    if ( ODD(sym_sts))
    {
      if ( symbol_value[0] == '@')
      {
        /* Read command file */
        sts = readcmdfile( &symbol_value[1]);
        if ( sts == DCLI__NOFILE)
        {
          message('E',"Unable to open file");
          return DCLI__SUCCESS;
        }
        else if ( EVEN(sts)) return sts;
        return DCLI__SUCCESS;
      }
      sts = dcli_cli( (dcli_tCmdTable *)&xtttbl_command_table, symbol_value, (void *) this, 0);
    }
    else if ( sym_sts == DCLI__SYMBOL_AMBIG)
      sts = sym_sts;
  }
  if (sts == DCLI__COM_AMBIG) message('E',"Ambiguous command");
  else if (sts == DCLI__COM_NODEF) message('E',"Undefined command");
  else if (sts == DCLI__QUAL_AMBIG) message('E',"Ambiguous qualifier");
  else if (sts == DCLI__QUAL_NODEF) message('E',"Undefined qualifier");
  else if (sts == DCLI__SYMBOL_AMBIG) message('E', "Ambiguous symbol abbrevation");

  command_sts = sts;
  return DCLI__SUCCESS;
}
Example #2
0
/*
 *  This command is provided since POSIX decided to standardize
 *  the Korn shell fc command.  Oh well...
 */
int
histcmd(volatile int argc, char ** volatile argv)
{
	int ch;
	const char * volatile editor = NULL;
	HistEvent he;
	volatile int lflg = 0, nflg = 0, rflg = 0, sflg = 0;
	int i, retval;
	const char *firststr, *laststr;
	int first, last, direction;
	char * volatile pat = NULL, * volatile repl;	/* ksh "fc old=new" crap */
	static int active = 0;
	struct jmploc jmploc;
	struct jmploc *volatile savehandler;
	char editfile[MAXPATHLEN + 1];
	FILE * volatile efp;
#ifdef __GNUC__
	repl = NULL;	/* XXX gcc4 */
	efp = NULL;	/* XXX gcc4 */
#endif

	if (hist == NULL)
		error("history not active");

	if (argc == 1)
		error("missing history argument");

	optreset = 1; optind = 1; /* initialize getopt */
	while (not_fcnumber(argv[optind]) &&
	      (ch = getopt(argc, argv, ":e:lnrs")) != -1)
		switch ((char)ch) {
		case 'e':
			editor = optionarg;
			break;
		case 'l':
			lflg = 1;
			break;
		case 'n':
			nflg = 1;
			break;
		case 'r':
			rflg = 1;
			break;
		case 's':
			sflg = 1;
			break;
		case ':':
			error("option -%c expects argument", optopt);
			/* NOTREACHED */
		case '?':
		default:
			error("unknown option: -%c", optopt);
			/* NOTREACHED */
		}
	argc -= optind, argv += optind;

	/*
	 * If executing...
	 */
	if (lflg == 0 || editor || sflg) {
		lflg = 0;	/* ignore */
		editfile[0] = '\0';
		/*
		 * Catch interrupts to reset active counter and
		 * cleanup temp files.
		 */
		savehandler = handler;
		if (setjmp(jmploc.loc)) {
			active = 0;
			if (*editfile)
				unlink(editfile);
			handler = savehandler;
			longjmp(handler->loc, 1);
		}
		handler = &jmploc;
		if (++active > MAXHISTLOOPS) {
			active = 0;
			displayhist = 0;
			error("called recursively too many times");
		}
		/*
		 * Set editor.
		 */
		if (sflg == 0) {
			if (editor == NULL &&
			    (editor = bltinlookup("FCEDIT", 1)) == NULL &&
			    (editor = bltinlookup("EDITOR", 1)) == NULL)
				editor = DEFEDITOR;
			if (editor[0] == '-' && editor[1] == '\0') {
				sflg = 1;	/* no edit */
				editor = NULL;
			}
		}
	}

	/*
	 * If executing, parse [old=new] now
	 */
	if (lflg == 0 && argc > 0 &&
	     ((repl = strchr(argv[0], '=')) != NULL)) {
		pat = argv[0];
		*repl++ = '\0';
		argc--, argv++;
	}

	/*
	 * If -s is specified, accept only one operand
	 */
	if (sflg && argc >= 2)
		error("too many args");

	/*
	 * determine [first] and [last]
	 */
	switch (argc) {
	case 0:
		firststr = lflg ? "-16" : "-1";
		laststr = "-1";
		break;
	case 1:
		firststr = argv[0];
		laststr = lflg ? "-1" : argv[0];
		break;
	case 2:
		firststr = argv[0];
		laststr = argv[1];
		break;
	default:
		error("too many args");
		/* NOTREACHED */
	}
	/*
	 * Turn into event numbers.
	 */
	first = str_to_event(firststr, 0);
	last = str_to_event(laststr, 1);

	if (rflg) {
		i = last;
		last = first;
		first = i;
	}
	/*
	 * XXX - this should not depend on the event numbers
	 * always increasing.  Add sequence numbers or offset
	 * to the history element in next (diskbased) release.
	 */
	direction = first < last ? H_PREV : H_NEXT;

	/*
	 * If editing, grab a temp file.
	 */
	if (editor) {
		int fd;
		INTOFF;		/* easier */
		snprintf(editfile, sizeof(editfile), "%s_shXXXXXX", _PATH_TMP);
		if ((fd = mkstemp(editfile)) < 0)
			error("can't create temporary file %s", editfile);
		if ((efp = fdopen(fd, "w")) == NULL) {
			close(fd);
			error("can't allocate stdio buffer for temp");
		}
	}

	/*
	 * Loop through selected history events.  If listing or executing,
	 * do it now.  Otherwise, put into temp file and call the editor
	 * after.
	 *
	 * The history interface needs rethinking, as the following
	 * convolutions will demonstrate.
	 */
	history(hist, &he, H_FIRST);
	retval = history(hist, &he, H_NEXT_EVENT, first);
	for (;retval != -1; retval = history(hist, &he, direction)) {
		if (lflg) {
			if (!nflg)
				out1fmt("%5d ", he.num);
			out1str(he.str);
		} else {
			const char *s = pat ?
			   fc_replace(he.str, pat, repl) : he.str;

			if (sflg) {
				if (displayhist) {
					out2str(s);
				}

				evalstring(strcpy(stalloc(strlen(s) + 1), s), 0);
				if (displayhist && hist) {
					/*
					 *  XXX what about recursive and
					 *  relative histnums.
					 */
					history(hist, &he, H_ENTER, s);
				}

				break;
			} else
				fputs(s, efp);
		}
		/*
		 * At end?  (if we were to lose last, we'd sure be
		 * messed up).
		 */
		if (he.num == last)
			break;
	}
	if (editor) {
		char *editcmd;
		size_t cmdlen;

		fclose(efp);
		cmdlen = strlen(editor) + strlen(editfile) + 2;
		editcmd = stalloc(cmdlen);
		snprintf(editcmd, cmdlen, "%s %s", editor, editfile);
		evalstring(editcmd, 0);	/* XXX - should use no JC command */
		INTON;
		readcmdfile(editfile);	/* XXX - should read back - quick tst */
		unlink(editfile);
	}

	if (lflg == 0 && active > 0)
		--active;
	if (displayhist)
		displayhist = 0;
	return 0;
}