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

   1 /*      $NetBSD: ex_tcl.c,v 1.3 2014/01/26 21:43:45 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 #include <sys/cdefs.h>
  16 #if 0
  17 #ifndef lint
  18 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 ";
  19 #endif /* not lint */
  20 #else
  21 __RCSID("$NetBSD: ex_tcl.c,v 1.3 2014/01/26 21:43:45 christos Exp $");
  22 #endif
  23
  24 #include <sys/types.h>
  25 #include <sys/queue.h>
  26
  27 #include <bitstring.h>
  28 #include <limits.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <termios.h>
  32 #include <unistd.h>
  33
  34 #include "../common/common.h"
  35
  36 #ifdef HAVE_TCL_INTERP
  37 #include <tcl.h>
  38 #endif
  39
  40 /*
  41  * ex_tcl -- :[line [,line]] tcl [command]
  42  *      Run a command through the tcl interpreter.
  43  *
  44  * PUBLIC: int ex_tcl __P((SCR*, EXCMD *));
  45  */
  46 int
  47 ex_tcl(SCR *sp, EXCMD *cmdp)
  48 {
  49 #ifdef HAVE_TCL_INTERP
  50         CHAR_T *p;
  51         GS *gp;
  52         size_t len;
  53         char buf[128];
  54
  55         /* Initialize the interpreter. */
  56         gp = sp->gp;
  57         if (gp->tcl_interp == NULL && tcl_init(gp))
  58                 return (1);
  59
  60         /* Skip leading white space. */
  61         if (cmdp->argc != 0)
  62                 for (p = cmdp->argv[0]->bp,
  63                     len = cmdp->argv[0]->len; len > 0; --len, ++p)
  64                         if (!ISBLANK((UCHAR_T)*p))
  65                                 break;
  66         if (cmdp->argc == 0 || len == 0) {
  67                 ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  68                 return (1);
  69         }
  70
  71         (void)snprintf(buf, sizeof(buf),
  72             "set viScreenId %d\nset viStartLine %lu\nset viStopLine %lu",
  73             sp->id, cmdp->addr1.lno, cmdp->addr2.lno);
  74         if (Tcl_Eval(gp->tcl_interp, buf) == TCL_OK &&
  75             Tcl_Eval(gp->tcl_interp, cmdp->argv[0]->bp) == TCL_OK)
  76                 return (0);
  77
  78         msgq(sp, M_ERR, "Tcl: %s", ((Tcl_Interp *)gp->tcl_interp)->result);
  79         return (1);
  80 #else
  81         msgq(sp, M_ERR, "302|Vi was not loaded with a Tcl interpreter");
  82         return (1);
  83 #endif /* HAVE_TCL_INTERP */
  84 }