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      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 }
     85