libguile/gh.h

   1 /*      Copyright (C) 1995,1996,1997 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 #ifndef __GH_H
  44 #define __GH_H
  45
  46 #include <stdio.h>
  47
  48 #include <libguile.h>
  49
  50 /* gcc has extern inline functions that are basically as fast as macros */
  51 #ifdef __GNUC__
  52 # define INL inline
  53 # define EXTINL extern inline
  54 #else
  55 # define INL
  56 #define EXTINL
  57 #endif /* __GNUC__ */
  58
  59 void gh_enter(int argc, char *argv[], void (*c_main_prog)());
  60 void gh_repl();
  61 SCM gh_catch(SCM tag, scm_catch_body_t body, void *body_data,
  62              scm_catch_handler_t handler, void *handler_data);
  63
  64 /* SCM gh_catch_with_saved_stack (SCM tag,      scm_catch_body_t body, */
  65 /*                             void *body_data, scm_catch_handler_t handler, */
  66 /*                             void *handler_data); */
  67 SCM gh_standard_handler(void *data, SCM tag, SCM throw_args);
  68 #if 0
  69 SCM gh_repl_handler(void *data, SCM tag, SCM throw_args);
  70 void gh_enter_repl(int argc, char *argv[], void (*init_proc)());
  71 #endif /* 0 */
  72
  73 SCM gh_eval_str(char *scheme_code);
  74 SCM gh_eval_str_with_catch(char *scheme_code, scm_catch_handler_t handler);
  75 SCM gh_eval_str_with_standard_handler(char *scheme_code);
  76 SCM gh_eval_str_with_stack_saving_handler(char *scheme_code);
  77
  78 SCM gh_eval_file(char *fname);
  79 #define gh_load(fname) gh_eval_file(fname)
  80 SCM gh_eval_file_with_catch(char *scheme_code, scm_catch_handler_t handler);
  81 SCM gh_eval_file_with_standard_handler(char *scheme_code);
  82
  83 #define gh_defer_ints() SCM_DEFER_INTS
  84 #define gh_allow_ints() SCM_ALLOW_INTS
  85
  86 SCM gh_new_procedure(char *proc_name, SCM (*fn)(),
  87                      int n_required_args, int n_optional_args, int varp);
  88 SCM gh_new_procedure0_0(char *proc_name, SCM (*fn)());
  89 SCM gh_new_procedure0_1(char *proc_name, SCM (*fn)());
  90 SCM gh_new_procedure0_2(char *proc_name, SCM (*fn)());
  91 SCM gh_new_procedure1_0(char *proc_name, SCM (*fn)());
  92 SCM gh_new_procedure1_1(char *proc_name, SCM (*fn)());
  93 SCM gh_new_procedure1_2(char *proc_name, SCM (*fn)());
  94 SCM gh_new_procedure2_0(char *proc_name, SCM (*fn)());
  95 SCM gh_new_procedure2_1(char *proc_name, SCM (*fn)());
  96 SCM gh_new_procedure2_2(char *proc_name, SCM (*fn)());
  97 SCM gh_new_procedure3_0(char *proc_name, SCM (*fn)());
  98 SCM gh_new_procedure4_0(char *proc_name, SCM (*fn)());
  99 SCM gh_new_procedure5_0(char *proc_name, SCM (*fn)());
 100
 101 /* C to Scheme conversion */
 102 SCM gh_bool2scm(int x);
 103 SCM gh_int2scm(int x);
 104 SCM gh_ulong2scm(unsigned long x);
 105 SCM gh_long2scm(long x);
 106 SCM gh_double2scm(double x);
 107 SCM gh_char2scm(char c);
 108 SCM gh_str2scm(char *s, int len);
 109 SCM gh_str02scm(char *s);
 110 void gh_set_substr(char *src, SCM dst, int start, int len);
 111 SCM gh_symbol2scm(char *symbol_str);
 112
 113
 114 /* Scheme to C conversion */
 115 int gh_scm2bool(SCM obj);
 116 int gh_scm2int(SCM obj);
 117 unsigned long gh_scm2ulong(SCM obj);
 118 long gh_scm2long(SCM obj);
 119 char gh_scm2char(SCM obj);
 120 double gh_scm2double(SCM obj);
 121 char *gh_scm2newstr(SCM str, int *lenp);
 122 void gh_get_substr(SCM src, char *dst, int start, int len);
 123 char *gh_symbol2newstr(SCM sym, int *lenp);
 124
 125 /* type predicates: tell you if an SCM object has a given type */
 126 int gh_boolean_p(SCM val);
 127 int gh_symbol_p(SCM val);
 128 int gh_char_p(SCM val);
 129 int gh_vector_p(SCM val);
 130 int gh_pair_p(SCM val);
 131 int gh_number_p(SCM val);
 132 int gh_string_p(SCM val);
 133 int gh_procedure_p(SCM val);
 134 int gh_list_p(SCM val);
 135 int gh_inexact_p(SCM val);
 136 int gh_exact_p(SCM val);
 137
 138 /* more predicates */
 139 int gh_eq_p(SCM x, SCM y);
 140 int gh_eqv_p(SCM x, SCM y);
 141 int gh_equal_p(SCM x, SCM y);
 142
 143 /* standard Scheme procedures available from C */
 144
 145 SCM gh_define(char *name, SCM val);
 146
 147 /* vector manipulation routines */
 148 /* note that gh_vector() does not behave quite like the Scheme (vector
 149    obj1 obj2 ...), because the interpreter engine does not pass the
 150    data element by element, but rather as a list.  thus, gh_vector()
 151    ends up being identical to gh_list_to_vector() */
 152 #define gh_vector(ls) scm_vector(ls)
 153 SCM gh_make_vector(SCM length, SCM val);
 154 SCM gh_vset(SCM vec, SCM pos, SCM val);
 155 SCM gh_vref(SCM vec, SCM pos);
 156 SCM gh_vector_set(SCM vec, SCM pos, SCM val);
 157 SCM gh_vector_ref(SCM vec, SCM pos);
 158 unsigned long gh_vector_length(SCM v);
 159 #define gh_list_to_vector(ls) scm_vector(ls)
 160 #define gh_vector_to_list(v) scm_vector_to_list(ls)
 161
 162 SCM gh_lookup (char *sname);
 163 SCM gh_module_lookup (SCM vector, char *sname);
 164
 165 SCM gh_cons(SCM x, SCM y);
 166 #define gh_list scm_listify
 167 unsigned long gh_length(SCM l);
 168
 169 SCM gh_car(SCM x);
 170 SCM gh_cdr(SCM x);
 171
 172 SCM gh_caar(SCM x);
 173 SCM gh_cadr(SCM x);
 174 SCM gh_cdar(SCM x);
 175 SCM gh_cddr(SCM x);
 176
 177 SCM gh_caaar(SCM x);
 178 SCM gh_caadr(SCM x);
 179 SCM gh_cadar(SCM x);
 180 SCM gh_caddr(SCM x);
 181 SCM gh_cdaar(SCM x);
 182 SCM gh_cdadr(SCM x);
 183 SCM gh_cddar(SCM x);
 184 SCM gh_cdddr(SCM x);
 185
 186 /* Calling Scheme functions from C.  */
 187 SCM gh_apply (SCM proc, SCM ls);
 188 SCM gh_call0 (SCM proc);
 189 SCM gh_call1 (SCM proc, SCM arg);
 190 SCM gh_call2 (SCM proc, SCM arg1, SCM arg2);
 191 SCM gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3);
 192
 193 /* reading and writing Scheme objects.  */
 194 void gh_display (SCM x);
 195 void gh_newline (void);
 196
 197 /* void  gh_gc_mark(SCM)              : mark an SCM as in use. */
 198 /* void  gh_defer_ints()              : don't interrupt code section. */
 199 /* void  gh_allow_ints()              : see gh_defer_ints(). */
 200 /* void  gh_new_cell(SCM, int tag)    : initialize SCM to be of type 'tag' */
 201 /* int   gh_type_p(SCM, tag)          : test if SCM is of type 'tag' */
 202 /* SCM   gh_intern(char*)             : get symbol corresponding to c-string.*/
 203 /* void  gh_set_ext_data(SCM, void*)  : set extension data on SCM */
 204 /* void *gh_get_ext_data(SCM)         : return extension data from SCM. */
 205
 206 /* void  gh_assert(int cond, char *msg, SCM obj); */
 207
 208
 209 #endif /* __GH_H */