libguile/gh.h

   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.
  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)(int, char **));
  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_standard_handler(void *data, SCM tag, SCM throw_args);
  69
  70 SCM gh_eval_str(char *scheme_code);
  71 SCM gh_eval_str_with_catch(char *scheme_code, scm_catch_handler_t handler);
  72 SCM gh_eval_str_with_standard_handler(char *scheme_code);
  73 SCM gh_eval_str_with_stack_saving_handler(char *scheme_code);
  74
  75 SCM gh_eval_file(char *fname);
  76 #define gh_load(fname) gh_eval_file(fname)
  77 SCM gh_eval_file_with_catch(char *scheme_code, scm_catch_handler_t handler);
  78 SCM gh_eval_file_with_standard_handler(char *scheme_code);
  79
  80 #define gh_defer_ints() SCM_DEFER_INTS
  81 #define gh_allow_ints() SCM_ALLOW_INTS
  82
  83 SCM gh_new_procedure(char *proc_name, SCM (*fn)(),
  84                      int n_required_args, int n_optional_args, int varp);
  85 SCM gh_new_procedure0_0(char *proc_name, SCM (*fn)(void));
  86 SCM gh_new_procedure0_1(char *proc_name, SCM (*fn)(SCM));
  87 SCM gh_new_procedure0_2(char *proc_name, SCM (*fn)(SCM, SCM));
  88 SCM gh_new_procedure1_0(char *proc_name, SCM (*fn)(SCM));
  89 SCM gh_new_procedure1_1(char *proc_name, SCM (*fn)(SCM, SCM));
  90 SCM gh_new_procedure1_2(char *proc_name, SCM (*fn)(SCM, SCM, SCM));
  91 SCM gh_new_procedure2_0(char *proc_name, SCM (*fn)(SCM, SCM));
  92 SCM gh_new_procedure2_1(char *proc_name, SCM (*fn)(SCM, SCM, SCM));
  93 SCM gh_new_procedure2_2(char *proc_name, SCM (*fn)(SCM, SCM, SCM, SCM));
  94 SCM gh_new_procedure3_0(char *proc_name, SCM (*fn)(SCM, SCM, SCM));
  95 SCM gh_new_procedure4_0(char *proc_name, SCM (*fn)(SCM, SCM, SCM, SCM));
  96 SCM gh_new_procedure5_0(char *proc_name, SCM (*fn)(SCM, SCM, SCM, SCM, SCM));
  97
  98 /* C to Scheme conversion */
  99 SCM gh_int2scmb(int x);         /* this is being phased out */
 100 SCM gh_bool2scm(int x);
 101 SCM gh_int2scm(int x);
 102 SCM gh_ulong2scm(unsigned long x);
 103 SCM gh_long2scm(long x);
 104 SCM gh_double2scm(double x);
 105 SCM gh_char2scm(char c);
 106 SCM gh_str2scm(char *s, int len);
 107 SCM gh_str02scm(char *s);
 108 void gh_set_substr(char *src, SCM dst, int start, int len);
 109 SCM gh_symbol2scm(char *symbol_str);
 110 SCM gh_ints2scm(int *d, int n);
 111 SCM gh_chars2byvect(char *d, int n);
 112 SCM gh_shorts2svect(short *d, int n);
 113 SCM gh_longs2ivect(long *d, int n);
 114 SCM gh_ulongs2uvect(unsigned long *d, int n);
 115 SCM gh_doubles2scm(double *d, int n);
 116 #ifdef SCM_FLOATS
 117 #ifdef SCM_SINGLES
 118 SCM gh_floats2fvect(float *d, int n);
 119 #endif
 120 SCM gh_doubles2dvect(double *d, int n);
 121 #endif
 122
 123
 124 /* Scheme to C conversion */
 125 int gh_scm2bool(SCM obj);
 126 int gh_scm2int(SCM obj);
 127 unsigned long gh_scm2ulong(SCM obj);
 128 long gh_scm2long(SCM obj);
 129 char gh_scm2char(SCM obj);
 130 double gh_scm2double(SCM obj);
 131 char *gh_scm2newstr(SCM str, int *lenp);
 132 void gh_get_substr(SCM src, char *dst, int start, int len);
 133 char *gh_symbol2newstr(SCM sym, int *lenp);
 134 char *gh_scm2chars(SCM vector, char *result);
 135 short *gh_scm2shorts(SCM vector, short *result);
 136 long *gh_scm2longs(SCM vector, long *result);
 137 float *gh_scm2floats(SCM vector, float *result);
 138 double *gh_scm2doubles(SCM vector, double *result);
 139
 140 /* type predicates: tell you if an SCM object has a given type */
 141 int gh_boolean_p(SCM val);
 142 int gh_symbol_p(SCM val);
 143 int gh_char_p(SCM val);
 144 int gh_vector_p(SCM val);
 145 int gh_pair_p(SCM val);
 146 int gh_number_p(SCM val);
 147 int gh_string_p(SCM val);
 148 int gh_procedure_p(SCM val);
 149 int gh_list_p(SCM val);
 150 int gh_inexact_p(SCM val);
 151 int gh_exact_p(SCM val);
 152
 153 /* more predicates */
 154 int gh_eq_p(SCM x, SCM y);
 155 int gh_eqv_p(SCM x, SCM y);
 156 int gh_equal_p(SCM x, SCM y);
 157 int gh_string_equal_p(SCM s1, SCM s2);
 158 int gh_null_p(SCM l);
 159
 160 /* standard Scheme procedures available from C */
 161
 162 #define gh_not(x) scm_not(x)
 163
 164 SCM gh_define(char *name, SCM val);
 165
 166 /* vector manipulation routines */
 167 /* note that gh_vector() does not behave quite like the Scheme (vector
 168    obj1 obj2 ...), because the interpreter engine does not pass the
 169    data element by element, but rather as a list.  thus, gh_vector()
 170    ends up being identical to gh_list_to_vector() */
 171 #define gh_vector(ls) scm_vector(ls)
 172 SCM gh_make_vector(SCM length, SCM val);
 173 SCM gh_vector_set_x(SCM vec, SCM pos, SCM val);
 174 SCM gh_vector_ref(SCM vec, SCM pos);
 175 unsigned long gh_vector_length (SCM v);
 176 unsigned long gh_uniform_vector_length (SCM v);
 177 SCM gh_uniform_vector_ref (SCM v, SCM ilist);
 178 #define gh_list_to_vector(ls) scm_vector(ls)
 179 #define gh_vector_to_list(v) scm_vector_to_list(ls)
 180
 181 SCM gh_lookup (char *sname);
 182 SCM gh_module_lookup (SCM vector, char *sname);
 183
 184 SCM gh_cons(SCM x, SCM y);
 185 #define gh_list scm_listify
 186 unsigned long gh_length(SCM l);
 187 SCM gh_append(SCM args);
 188 SCM gh_append2(SCM l1, SCM l2);
 189 SCM gh_append3(SCM l1, SCM l2, SCM l3);
 190 SCM gh_append4(SCM l1, SCM l2, SCM l3, SCM l4);
 191 #define gh_reverse(ls) scm_reverse(ls)
 192 #define gh_list_tail(ls, k) scm_list_tail(ls, k)
 193 #define gh_list_ref(ls, k) scm_list_ref(ls, k)
 194 #define gh_memq(x, ls) scm_memq(x, ls)
 195 #define gh_memv(x, ls) scm_memv(x, ls)
 196 #define gh_member(x, ls) scm_member(x, ls)
 197 #define gh_assq(x, alist) scm_assq(x, alist)
 198 #define gh_assv(x, alist) scm_assv(x, alist)
 199 #define gh_assoc(x, alist) scm_assoc(x, alist)
 200
 201 SCM gh_car(SCM x);
 202 SCM gh_cdr(SCM x);
 203
 204 SCM gh_caar(SCM x);
 205 SCM gh_cadr(SCM x);
 206 SCM gh_cdar(SCM x);
 207 SCM gh_cddr(SCM x);
 208
 209 SCM gh_caaar(SCM x);
 210 SCM gh_caadr(SCM x);
 211 SCM gh_cadar(SCM x);
 212 SCM gh_caddr(SCM x);
 213 SCM gh_cdaar(SCM x);
 214 SCM gh_cdadr(SCM x);
 215 SCM gh_cddar(SCM x);
 216 SCM gh_cdddr(SCM x);
 217
 218 SCM gh_set_car_x(SCM pair, SCM value);
 219 SCM gh_set_cdr_x(SCM pair, SCM value);
 220
 221
 222 /* Calling Scheme functions from C.  */
 223 SCM gh_apply (SCM proc, SCM ls);
 224 SCM gh_call0 (SCM proc);
 225 SCM gh_call1 (SCM proc, SCM arg);
 226 SCM gh_call2 (SCM proc, SCM arg1, SCM arg2);
 227 SCM gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3);
 228
 229 /* reading and writing Scheme objects.  */
 230 void gh_display (SCM x);
 231 void gh_write (SCM x);
 232 void gh_newline (void);
 233
 234 /* void  gh_gc_mark(SCM)              : mark an SCM as in use. */
 235 /* void  gh_defer_ints()              : don't interrupt code section. */
 236 /* void  gh_allow_ints()              : see gh_defer_ints(). */
 237 /* void  gh_new_cell(SCM, int tag)    : initialize SCM to be of type 'tag' */
 238 /* int   gh_type_p(SCM, tag)          : test if SCM is of type 'tag' */
 239 /* SCM   gh_intern(char*)             : get symbol corresponding to c-string.*/
 240 /* void  gh_set_ext_data(SCM, void*)  : set extension data on SCM */
 241 /* void *gh_get_ext_data(SCM)         : return extension data from SCM. */
 242
 243 /* void  gh_assert(int cond, char *msg, SCM obj); */
 244
 245 #ifdef __cplusplus
 246 }
 247 #endif
 248
 249 #endif /* __GH_H */