libguile/gh_eval.c

   1 /*      Copyright (C) 1995,1996,1997,1998 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.
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  28  * the executable file might be covered by the GNU General Public License.
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  30  * This exception applies only to the code released by the
  31  * Free Software Foundation under the name GUILE.  If you copy
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  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.
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  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 <stdio.h>
  46
  47 #include "libguile/gh.h"
  48
  49 typedef SCM (*gh_eval_t) (void *data, SCM jmpbuf);
  50
  51 /* Evaluate the string; toss the value.  */
  52 SCM
  53 gh_eval_str (const char *scheme_code)
  54 {
  55   return scm_eval_0str (scheme_code);
  56 }
  57
  58 /* evaluate the file by passing it to the lower level scm_primitive_load() */
  59 SCM
  60 gh_eval_file (const char *fname)
  61 {
  62   return scm_primitive_load (gh_str02scm (fname));
  63 }
  64
  65 static SCM
  66 eval_str_wrapper (void *data)
  67 {
  68 /*   gh_eval_t real_eval_proc = (gh_eval_t) (* ((gh_eval_t *) data)); */
  69
  70   char *scheme_code = (char *) data;
  71   return gh_eval_str (scheme_code);
  72 }
  73
  74 SCM
  75 gh_eval_str_with_catch (const char *scheme_code, scm_catch_handler_t handler)
  76 {
  77   /* FIXME: not there yet */
  78   return gh_catch (SCM_BOOL_T, (scm_catch_body_t) eval_str_wrapper, (void *) scheme_code,
  79                    (scm_catch_handler_t) handler, (void *) scheme_code);
  80 }
  81
  82 SCM
  83 gh_eval_str_with_standard_handler (const char *scheme_code)
  84 {
  85   return gh_eval_str_with_catch (scheme_code, gh_standard_handler);
  86 }
  87
  88 SCM
  89 gh_eval_str_with_stack_saving_handler (const char *scheme_code)
  90 {
  91   return scm_internal_stack_catch (SCM_BOOL_T,
  92                                    (scm_catch_body_t) eval_str_wrapper,
  93                                    (void *) scheme_code,
  94                                    (scm_catch_handler_t)
  95                                    gh_standard_handler,
  96                                    (void *) scheme_code);
  97 }
  98
  99 static SCM
 100 eval_file_wrapper (void *data)
 101 {
 102 /*   gh_eval_t real_eval_proc = (gh_eval_t) (* ((gh_eval_t *) data)); */
 103
 104   char *scheme_code = (char *) data;
 105   return gh_eval_file (scheme_code);
 106 }
 107
 108 SCM
 109 gh_eval_file_with_catch (const char *scheme_code, scm_catch_handler_t handler)
 110 {
 111   /* FIXME: not there yet */
 112   return gh_catch (SCM_BOOL_T, (scm_catch_body_t) eval_file_wrapper,
 113                    (void *) scheme_code, (scm_catch_handler_t) handler,
 114                    (void *) scheme_code);
 115 }
 116
 117 SCM
 118 gh_eval_file_with_standard_handler (const char *scheme_code)
 119 {
 120   return gh_eval_file_with_catch (scheme_code, gh_standard_handler);
 121 }
 122
 123 /*
 124   Local Variables:
 125   c-file-style: "gnu"
 126   End:
 127 */