examples.api/jim_obj.c

   1 /*-
   2  * Copyright (c) 2010 Wojciech A. Koszek <wkoszek@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $Id$
  27  */
  28 #include <assert.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #define JIM_EMBEDDED
  34 #include <jim.h>
  35
  36 #define OBJ_DESC        "hello world"
  37
  38 int
  39 main(int argc, char **argv)
  40 {
  41         Jim_Interp *interp;
  42         Jim_Obj *obj;
  43         const char *obj_desc;
  44         int obj_size;
  45
  46         obj = NULL;
  47         obj_desc = NULL;
  48         obj_size = -1;
  49
  50         /* Create an interpreter */
  51         interp = Jim_CreateInterp();
  52
  53         /* We register base commands, so that we actually implement Tcl. */
  54         Jim_RegisterCoreCommands(interp);
  55
  56         /* And initialise any static extensions */
  57         Jim_InitStaticExtensions(interp);
  58
  59         /* Create a string object */
  60         obj = Jim_NewStringObj(interp, OBJ_DESC, strlen(OBJ_DESC));
  61
  62         /* Obtain internal representation of an object */
  63         obj_desc = Jim_GetString(obj, &obj_size);
  64         assert(obj_desc != NULL && "Jim should return NULL as a description");
  65         printf("Object described as '%s'; object size is %d\n", obj_desc,
  66             obj_size);
  67
  68         Jim_FreeObj(interp, obj);
  69         Jim_FreeInterp(interp);
  70
  71         return (EXIT_SUCCESS);
  72 }