libguile/gh_eval.c

   1 /*      Copyright (C) 1995,1996,1997,1998, 2000 Free Software Foundation, Inc.
   2
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2, or (at your option)
   6  * any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this software; see the file COPYING.  If not, write to
  15  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  16  * Boston, MA 02111-1307 USA
  17  *
  18  * As a special exception, the Free Software Foundation gives permission
  19  * for additional uses of the text contained in its release of GUILE.
  20  *
  21  * The exception is that, if you link the GUILE library with other files
  22  * to produce an executable, this does not by itself cause the
  23  * resulting executable to be covered by the GNU General Public License.
  24  * Your use of that executable is in no way restricted on account of
  25  * linking the GUILE library code into it.
  26  *
  27  * This exception does not however invalidate any other reasons why
  28  * the executable file might be covered by the GNU General Public License.
  29  *
  30  * This exception applies only to the code released by the
  31  * Free Software Foundation under the name GUILE.  If you copy
  32  * code from other Free Software Foundation releases into a copy of
  33  * GUILE, as the General Public License permits, the exception does
  34  * not apply to the code that you add in this way.  To avoid misleading
  35  * anyone as to the status of such modified files, you must delete
  36  * this exception notice from them.
  37  *
  38  * If you write modifications of your own for GUILE, it is your choice
  39  * whether to permit this exception to apply to your modifications.
  40  * If you do not wish that, delete this exception notice.  */
  41 \f
  42
  43 /* routines to evaluate Scheme code */
  44
  45 #include "libguile/gh.h"
  46
  47 typedef SCM (*gh_eval_t) (void *data, SCM jmpbuf);
  48
  49 /* Evaluate the string; toss the value.  */
  50 SCM
  51 gh_eval_str (const char *scheme_code)
  52 {
  53   return scm_eval_0str (scheme_code);
  54 }
  55
  56 /* evaluate the file by passing it to the lower level scm_primitive_load() */
  57 SCM
  58 gh_eval_file (const char *fname)
  59 {
  60   return scm_primitive_load (gh_str02scm (fname));
  61 }
  62
  63 static SCM
  64 eval_str_wrapper (void *data)
  65 {
  66 /*   gh_eval_t real_eval_proc = (gh_eval_t) (* ((gh_eval_t *) data)); */
  67
  68   char *scheme_code = (char *) data;
  69   return gh_eval_str (scheme_code);
  70 }
  71
  72 SCM
  73 gh_eval_str_with_catch (const char *scheme_code, scm_catch_handler_t handler)
  74 {
  75   /* FIXME: not there yet */
  76   return gh_catch (SCM_BOOL_T, (scm_catch_body_t) eval_str_wrapper, (void *) scheme_code,
  77                    (scm_catch_handler_t) handler, (void *) scheme_code);
  78 }
  79
  80 SCM
  81 gh_eval_str_with_standard_handler (const char *scheme_code)
  82 {
  83   return gh_eval_str_with_catch (scheme_code, gh_standard_handler);
  84 }
  85
  86 SCM
  87 gh_eval_str_with_stack_saving_handler (const char *scheme_code)
  88 {
  89   return scm_internal_stack_catch (SCM_BOOL_T,
  90                                    (scm_catch_body_t) eval_str_wrapper,
  91                                    (void *) scheme_code,
  92                                    (scm_catch_handler_t)
  93                                    gh_standard_handler,
  94                                    (void *) scheme_code);
  95 }
  96
  97 static SCM
  98 eval_file_wrapper (void *data)
  99 {
 100 /*   gh_eval_t real_eval_proc = (gh_eval_t) (* ((gh_eval_t *) data)); */
 101
 102   char *scheme_code = (char *) data;
 103   return gh_eval_file (scheme_code);
 104 }
 105
 106 SCM
 107 gh_eval_file_with_catch (const char *scheme_code, scm_catch_handler_t handler)
 108 {
 109   /* FIXME: not there yet */
 110   return gh_catch (SCM_BOOL_T, (scm_catch_body_t) eval_file_wrapper,
 111                    (void *) scheme_code, (scm_catch_handler_t) handler,
 112                    (void *) scheme_code);
 113 }
 114
 115 SCM
 116 gh_eval_file_with_standard_handler (const char *scheme_code)
 117 {
 118   return gh_eval_file_with_catch (scheme_code, gh_standard_handler);
 119 }
 120
 121 /*
 122   Local Variables:
 123   c-file-style: "gnu"
 124   End:
 125 */