xref: /minix/external/bsd/nvi/dist/ex/ex_perl.c (revision 0a6a1f1d)
1 /*	$NetBSD: ex_perl.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  * Copyright (c) 1996
10  *	Sven Verdoolaege. All rights reserved.
11  *
12  * See the LICENSE file for redistribution information.
13  */
14 
15 #include "config.h"
16 
17 #include <sys/cdefs.h>
18 #if 0
19 #ifndef lint
20 static const char sccsid[] = "Id: ex_perl.c,v 8.11 2001/06/25 15:19:18 skimo Exp  (Berkeley) Date: 2001/06/25 15:19:18 ";
21 #endif /* not lint */
22 #else
23 __RCSID("$NetBSD: ex_perl.c,v 1.3 2014/01/26 21:43:45 christos Exp $");
24 #endif
25 
26 #include <sys/types.h>
27 #include <sys/queue.h>
28 #include <sys/time.h>
29 
30 #include <bitstring.h>
31 #include <ctype.h>
32 #include <limits.h>
33 #include <stdio.h>
34 #include <string.h>
35 #include <termios.h>
36 #include <unistd.h>
37 
38 #include "../common/common.h"
39 
40 /*
41  * ex_perl -- :[line [,line]] perl [command]
42  *	Run a command through the perl interpreter.
43  *
44  * ex_perldo -- :[line [,line]] perldo [command]
45  *	Run a set of lines through the perl interpreter.
46  *
47  * PUBLIC: int ex_perl __P((SCR*, EXCMD *));
48  */
49 int
ex_perl(SCR * sp,EXCMD * cmdp)50 ex_perl(SCR *sp, EXCMD *cmdp)
51 {
52 #ifdef HAVE_PERL_INTERP
53 	CHAR_T *p;
54 	size_t len;
55 
56 	/* Skip leading white space. */
57 	if (cmdp->argc != 0)
58 		for (p = cmdp->argv[0]->bp,
59 		    len = cmdp->argv[0]->len; len > 0; --len, ++p)
60 			if (!ISBLANK((UCHAR_T)*p))
61 				break;
62 	if (cmdp->argc == 0 || len == 0) {
63 		ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
64 		return (1);
65 	}
66 	return (cmdp->cmd == &cmds[C_PERLCMD] ?
67 	    perl_ex_perl(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno) :
68 	    perl_ex_perldo(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno));
69 #else
70 	msgq(sp, M_ERR, "306|Vi was not loaded with a Perl interpreter");
71 	return (1);
72 #endif
73 }
74