dist/nvi/ex/ex_perl.c

   1 /*      $NetBSD$ */
   2
   3 /*-
   4  * Copyright (c) 1992, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   7  *      Keith Bostic.  All rights reserved.
   8  * Copyright (c) 1995
   9  *      George V. Neville-Neil. All rights reserved.
  10  * Copyright (c) 1996
  11  *      Sven Verdoolaege. All rights reserved.
  12  *
  13  * See the LICENSE file for redistribution information.
  14  */
  15
  16 #include "config.h"
  17
  18 #ifndef lint
  19 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";
  20 #endif /* not lint */
  21
  22 #include <sys/types.h>
  23 #include <sys/queue.h>
  24 #include <sys/time.h>
  25
  26 #include <bitstring.h>
  27 #include <ctype.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 /*
  37  * ex_perl -- :[line [,line]] perl [command]
  38  *      Run a command through the perl interpreter.
  39  *
  40  * ex_perldo -- :[line [,line]] perldo [command]
  41  *      Run a set of lines through the perl interpreter.
  42  *
  43  * PUBLIC: int ex_perl __P((SCR*, EXCMD *));
  44  */
  45 int
  46 ex_perl(SCR *sp, EXCMD *cmdp)
  47 {
  48 #ifdef HAVE_PERL_INTERP
  49         CHAR_T *p;
  50         size_t len;
  51
  52         /* Skip leading white space. */
  53         if (cmdp->argc != 0)
  54                 for (p = cmdp->argv[0]->bp,
  55                     len = cmdp->argv[0]->len; len > 0; --len, ++p)
  56                         if (!isblank(*p))
  57                                 break;
  58         if (cmdp->argc == 0 || len == 0) {
  59                 ex_emsg(sp, cmdp->cmd->usage, EXM_USAGE);
  60                 return (1);
  61         }
  62         return (cmdp->cmd == &cmds[C_PERLCMD] ?
  63             perl_ex_perl(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno) :
  64             perl_ex_perldo(sp, p, len, cmdp->addr1.lno, cmdp->addr2.lno));
  65 #else
  66         msgq(sp, M_ERR, "306|Vi was not loaded with a Perl interpreter");
  67         return (1);
  68 #endif
  69 }