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 #ifdef __cplusplus
  47 extern "C" {
  48 #endif
  49
  50 #include <stdio.h>
  51
  52 #include <libguile.h>
  53
  54 /* gcc has extern inline functions that are basically as fast as macros */
  55 #ifdef __GNUC__
  56 # define INL inline
  57 # define EXTINL extern inline
  58 #else
  59 # define INL
  60 #define EXTINL
  61 #endif /* __GNUC__ */
  62
  63 void gh_enter(int argc, char *argv[], void (*c_main_prog)());
  64 void gh_repl(int argc, char *argv[]);
  65 SCM gh_catch(SCM tag, scm_catch_body_t body, void *body_data,
  66              scm_catch_handler_t handler, void *handler_data);
  67
  68 /* SCM gh_catch_with_saved_stack (SCM tag,      scm_catch_body_t body, */
  69 /*                             void *body_data, scm_catch_handler_t handler, */
  70 /*                             void *handler_data); */
  71 SCM gh_standard_handler(void *data, SCM tag, SCM throw_args);
  72 #if 0
  73 SCM gh_repl_handler(void *data, SCM tag, SCM throw_args);
  74 void gh_enter_repl(int argc, char *argv[], void (*init_proc)());
  75 #endif /* 0 */
  76
  77 SCM gh_eval_str(char *scheme_code);
  78 SCM gh_eval_str_with_catch(char *scheme_code, scm_catch_handler_t handler);
  79 SCM gh_eval_str_with_standard_handler(char *scheme_code);
  80 SCM gh_eval_str_with_stack_saving_handler(char *scheme_code);
  81
  82 SCM gh_eval_file(char *fname);
  83 #define gh_load(fname) gh_eval_file(fname)
  84 SCM gh_eval_file_with_catch(char *scheme_code, scm_catch_handler_t handler);
  85 SCM gh_eval_file_with_standard_handler(char *scheme_code);
  86
  87 #define gh_defer_ints() SCM_DEFER_INTS
  88 #define gh_allow_ints() SCM_ALLOW_INTS
  89
  90 SCM gh_new_procedure(char *proc_name, SCM (*fn)(),
  91                      int n_required_args, int n_optional_args, int varp);
  92 SCM gh_new_procedure0_0(char *proc_name, SCM (*fn)());
  93 SCM gh_new_procedure0_1(char *proc_name, SCM (*fn)());
  94 SCM gh_new_procedure0_2(char *proc_name, SCM (*fn)());
  95 SCM gh_new_procedure1_0(char *proc_name, SCM (*fn)());
  96 SCM gh_new_procedure1_1(char *proc_name, SCM (*fn)());
  97 SCM gh_new_procedure1_2(char *proc_name, SCM (*fn)());
  98 SCM gh_new_procedure2_0(char *proc_name, SCM (*fn)());
  99 SCM gh_new_procedure2_1(char *proc_name, SCM (*fn)());
 100 SCM gh_new_procedure2_2(char *proc_name, SCM (*fn)());
 101 SCM gh_new_procedure3_0(char *proc_name, SCM (*fn)());
 102 SCM gh_new_procedure4_0(char *proc_name, SCM (*fn)());
 103 SCM gh_new_procedure5_0(char *proc_name, SCM (*fn)());
 104
 105 /* C to Scheme conversion */
 106 SCM gh_bool2scm(int x);
 107 SCM gh_int2scm(int x);
 108 SCM gh_ulong2scm(unsigned long x);
 109 SCM gh_long2scm(long x);
 110 SCM gh_double2scm(double x);
 111 SCM gh_char2scm(char c);
 112 SCM gh_str2scm(char *s, int len);
 113 SCM gh_str02scm(char *s);
 114 void gh_set_substr(char *src, SCM dst, int start, int len);
 115 SCM gh_symbol2scm(char *symbol_str);
 116 SCM gh_doubles2scm(double *d, int n);
 117 #ifdef SCM_FLOATS
 118 SCM gh_doubles2dvect(double *d, int n);
 119 #endif
 120
 121
 122 /* Scheme to C conversion */
 123 int gh_scm2bool(SCM obj);
 124 int gh_scm2int(SCM obj);
 125 unsigned long gh_scm2ulong(SCM obj);
 126 long gh_scm2long(SCM obj);
 127 char gh_scm2char(SCM obj);
 128 double gh_scm2double(SCM obj);
 129 char *gh_scm2newstr(SCM str, int *lenp);
 130 void gh_get_substr(SCM src, char *dst, int start, int len);
 131 char *gh_symbol2newstr(SCM sym, int *lenp);
 132 double *gh_scm2doubles(SCM vector);
 133
 134 /* type predicates: tell you if an SCM object has a given type */
 135 int gh_boolean_p(SCM val);
 136 int gh_symbol_p(SCM val);
 137 int gh_char_p(SCM val);
 138 int gh_vector_p(SCM val);
 139 int gh_pair_p(SCM val);
 140 int gh_number_p(SCM val);
 141 int gh_string_p(SCM val);
 142 int gh_procedure_p(SCM val);
 143 int gh_list_p(SCM val);
 144 int gh_inexact_p(SCM val);
 145 int gh_exact_p(SCM val);
 146
 147 /* more predicates */
 148 int gh_eq_p(SCM x, SCM y);
 149 int gh_eqv_p(SCM x, SCM y);
 150 int gh_equal_p(SCM x, SCM y);
 151 int gh_string_equal_p(SCM s1, SCM s2);
 152 int gh_null_p(SCM l);
 153
 154 /* standard Scheme procedures available from C */
 155
 156 #define gh_not(x) scm_not(x)
 157
 158 SCM gh_define(char *name, SCM val);
 159
 160 /* vector manipulation routines */
 161 /* note that gh_vector() does not behave quite like the Scheme (vector
 162    obj1 obj2 ...), because the interpreter engine does not pass the
 163    data element by element, but rather as a list.  thus, gh_vector()
 164    ends up being identical to gh_list_to_vector() */
 165 #define gh_vector(ls) scm_vector(ls)
 166 SCM gh_make_vector(SCM length, SCM val);
 167 SCM gh_vset(SCM vec, SCM pos, SCM val);
 168 SCM gh_vref(SCM vec, SCM pos);
 169 SCM gh_vector_set_x(SCM vec, SCM pos, SCM val);
 170 SCM gh_vector_ref(SCM vec, SCM pos);
 171 unsigned long gh_vector_length(SCM v);
 172 #define gh_list_to_vector(ls) scm_vector(ls)
 173 #define gh_vector_to_list(v) scm_vector_to_list(ls)
 174
 175 SCM gh_lookup (char *sname);
 176 SCM gh_module_lookup (SCM vector, char *sname);
 177
 178 SCM gh_cons(SCM x, SCM y);
 179 #define gh_list scm_listify
 180 unsigned long gh_length(SCM l);
 181 SCM gh_append(SCM args);
 182 SCM gh_append2(SCM l1, SCM l2);
 183 SCM gh_append3(SCM l1, SCM l2, SCM l3);
 184 SCM gh_append4(SCM l1, SCM l2, SCM l3, SCM l4);
 185 #define gh_reverse(ls) scm_reverse(ls)
 186 #define gh_list_tail(ls, k) scm_list_tail(ls, k)
 187 #define gh_list_ref(ls, k) scm_list_ref(ls, k)
 188 #define gh_memq(x, ls) scm_memq(x, ls)
 189 #define gh_memv(x, ls) scm_memqv(x, ls)
 190 #define gh_member(x, ls) scm_memqber(x, ls)
 191 #define gh_assq(x, alist) scm_assq(x, alist)
 192 #define gh_assv(x, alist) scm_assv(x, alist)
 193 #define gh_assoc(x, alist) scm_assoc(x, alist)
 194
 195 SCM gh_car(SCM x);
 196 SCM gh_cdr(SCM x);
 197
 198 SCM gh_caar(SCM x);
 199 SCM gh_cadr(SCM x);
 200 SCM gh_cdar(SCM x);
 201 SCM gh_cddr(SCM x);
 202
 203 SCM gh_caaar(SCM x);
 204 SCM gh_caadr(SCM x);
 205 SCM gh_cadar(SCM x);
 206 SCM gh_caddr(SCM x);
 207 SCM gh_cdaar(SCM x);
 208 SCM gh_cdadr(SCM x);
 209 SCM gh_cddar(SCM x);
 210 SCM gh_cdddr(SCM x);
 211
 212 SCM gh_set_car_x(SCM pair, SCM value);
 213 SCM gh_set_cdr_x(SCM pair, SCM value);
 214
 215
 216 /* Calling Scheme functions from C.  */
 217 SCM gh_apply (SCM proc, SCM ls);
 218 SCM gh_call0 (SCM proc);
 219 SCM gh_call1 (SCM proc, SCM arg);
 220 SCM gh_call2 (SCM proc, SCM arg1, SCM arg2);
 221 SCM gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3);
 222
 223 /* reading and writing Scheme objects.  */
 224 void gh_display (SCM x);
 225 void gh_newline (void);
 226
 227 /* void  gh_gc_mark(SCM)              : mark an SCM as in use. */
 228 /* void  gh_defer_ints()              : don't interrupt code section. */
 229 /* void  gh_allow_ints()              : see gh_defer_ints(). */
 230 /* void  gh_new_cell(SCM, int tag)    : initialize SCM to be of type 'tag' */
 231 /* int   gh_type_p(SCM, tag)          : test if SCM is of type 'tag' */
 232 /* SCM   gh_intern(char*)             : get symbol corresponding to c-string.*/
 233 /* void  gh_set_ext_data(SCM, void*)  : set extension data on SCM */
 234 /* void *gh_get_ext_data(SCM)         : return extension data from SCM. */
 235
 236 /* void  gh_assert(int cond, char *msg, SCM obj); */
 237
 238 #ifdef __cplusplus
 239 }
 240 #endif
 241
 242 #endif /* __GH_H */