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

   1 /*      $NetBSD: ex_perl.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  * 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 #ifndef lint
  18 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 ";
  19 #endif /* not lint */
  20
  21 #include <sys/types.h>
  22 #include <sys/queue.h>
  23 #include <sys/time.h>
  24
  25 #include <bitstring.h>
  26 #include <ctype.h>
  27 #include <limits.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <termios.h>
  31 #include <unistd.h>
  32
  33 #include "../common/common.h"
  34
  35 /*
  36  * ex_perl -- :[line [,line]] perl [command]
  37  *      Run a command through the perl interpreter.
  38  *
  39  * ex_perldo -- :[line [,line]] perldo [command]
  40  *      Run a set of lines through the perl interpreter.
  41  *
  42  * PUBLIC: int ex_perl __P((SCR*, EXCMD *));
  43  */
  44 int
  45 ex_perl(SCR *sp, EXCMD *cmdp)
  46 {
  47 #ifdef HAVE_PERL_INTERP
  48         CHAR_T *p;
  49         size_t len;
  50
  51         /* Skip leading white space. */
  52         if (cmdp->argc != 0)
  53                 for (p = cmdp->argv[0]->bp,
  54                     len = cmdp->argv[0]->len; len > 0; --len, ++p)
  55                         if (!ISBLANK((UCHAR_T)*p))
  56                                 break;
  57         if (cmdp->argc == 0 || len == 0) {
  58                 ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  59                 return (1);
  60         }
  61         return (cmdp->cmd == &cmds[C_PERLCMD] ?
  62             perl_ex_perl(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno) :
  63             perl_ex_perldo(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno));
  64 #else
  65         msgq(sp, M_ERR, "306|Vi was not loaded with a Perl interpreter");
  66         return (1);
  67 #endif
  68 }