external/bsd/nvi/dist/ex/ex_tcl.c

   1 /*      $NetBSD: ex_tcl.c,v 1.2 2013/11/22 15:52:05 christos Exp $ */
   2 /*-
   3  * Copyright (c) 1992, 1993, 1994
   4  *      The Regents of the University of California.  All rights reserved.
   5  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   6  *      Keith Bostic.  All rights reserved.
   7  * Copyright (c) 1995
   8  *      George V. Neville-Neil.  All rights reserved.
   9  *
  10  * See the LICENSE file for redistribution information.
  11  */
  12
  13 #include "config.h"
  14
  15 #ifndef lint
  16 static const char sccsid[] = "Id: ex_tcl.c,v 8.11 2001/06/25 15:19:21 skimo Exp  (Berkeley) Date: 2001/06/25 15:19:21 ";
  17 #endif /* not lint */
  18
  19 #include <sys/types.h>
  20 #include <sys/queue.h>
  21
  22 #include <bitstring.h>
  23 #include <limits.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <termios.h>
  27 #include <unistd.h>
  28
  29 #include "../common/common.h"
  30
  31 #ifdef HAVE_TCL_INTERP
  32 #include <tcl.h>
  33 #endif
  34
  35 /*
  36  * ex_tcl -- :[line [,line]] tcl [command]
  37  *      Run a command through the tcl interpreter.
  38  *
  39  * PUBLIC: int ex_tcl __P((SCR*, EXCMD *));
  40  */
  41 int
  42 ex_tcl(SCR *sp, EXCMD *cmdp)
  43 {
  44 #ifdef HAVE_TCL_INTERP
  45         CHAR_T *p;
  46         GS *gp;
  47         size_t len;
  48         char buf[128];
  49
  50         /* Initialize the interpreter. */
  51         gp = sp->gp;
  52         if (gp->tcl_interp == NULL && tcl_init(gp))
  53                 return (1);
  54
  55         /* Skip leading white space. */
  56         if (cmdp->argc != 0)
  57                 for (p = cmdp->argv[0]->bp,
  58                     len = cmdp->argv[0]->len; len > 0; --len, ++p)
  59                         if (!ISBLANK((UCHAR_T)*p))
  60                                 break;
  61         if (cmdp->argc == 0 || len == 0) {
  62                 ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  63                 return (1);
  64         }
  65
  66         (void)snprintf(buf, sizeof(buf),
  67             "set viScreenId %d\nset viStartLine %lu\nset viStopLine %lu",
  68             sp->id, cmdp->addr1.lno, cmdp->addr2.lno);
  69         if (Tcl_Eval(gp->tcl_interp, buf) == TCL_OK &&
  70             Tcl_Eval(gp->tcl_interp, cmdp->argv[0]->bp) == TCL_OK)
  71                 return (0);
  72
  73         msgq(sp, M_ERR, "Tcl: %s", ((Tcl_Interp *)gp->tcl_interp)->result);
  74         return (1);
  75 #else
  76         msgq(sp, M_ERR, "302|Vi was not loaded with a Tcl interpreter");
  77         return (1);
  78 #endif /* HAVE_TCL_INTERP */
  79 }