ex/ex_perl.c

   1 /*-
   2  * Copyright (c) 1992, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   5  *      Keith Bostic.  All rights reserved.
   6  * Copyright (c) 1995
   7  *      George V. Neville-Neil. All rights reserved.
   8  * Copyright (c) 1996
   9  *      Sven Verdoolaege. All rights reserved.
  10  *
  11  * See the LICENSE file for redistribution information.
  12  */
  13
  14 #include "config.h"
  15
  16 #ifndef lint
  17 static const char sccsid[] = "$Id: ex_perl.c,v 8.10 1996/09/15 16:00:05 bostic Exp $ (Berkeley) $Date: 1996/09/15 16:00:05 $";
  18 #endif /* not lint */
  19
  20 #include <sys/types.h>
  21 #include <sys/queue.h>
  22 #include <sys/time.h>
  23
  24 #include <bitstring.h>
  25 #include <ctype.h>
  26 #include <limits.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <termios.h>
  30 #include <unistd.h>
  31
  32 #include "../common/common.h"
  33
  34 /*
  35  * ex_perl -- :[line [,line]] perl [command]
  36  *      Run a command through the perl interpreter.
  37  *
  38  * ex_perldo -- :[line [,line]] perldo [command]
  39  *      Run a set of lines through the perl interpreter.
  40  *
  41  * PUBLIC: int ex_perl __P((SCR*, EXCMD *));
  42  */
  43 int
  44 ex_perl(sp, cmdp)
  45         SCR *sp;
  46         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 }