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22a52da1 | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
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. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
a0599745 MD |
47 | #include "libguile/_scm.h" |
48 | #include "libguile/alist.h" | |
49 | #include "libguile/hash.h" | |
50 | #include "libguile/eval.h" | |
51 | #include "libguile/vectors.h" | |
52 | ||
53 | #include "libguile/validate.h" | |
54 | #include "libguile/hashtab.h" | |
0f2d19dd JB |
55 | \f |
56 | ||
00ffa0e7 | 57 | SCM |
c014a02e | 58 | scm_c_make_hash_table (unsigned long k) |
00ffa0e7 KN |
59 | { |
60 | return scm_c_make_vector (k, SCM_EOL); | |
61 | } | |
1cc91f1b | 62 | |
22a52da1 | 63 | |
0f2d19dd | 64 | SCM |
c014a02e | 65 | scm_hash_fn_get_handle (SCM table,SCM obj,unsigned long (*hash_fn)(),SCM (*assoc_fn)(),void * closure) |
22a52da1 | 66 | #define FUNC_NAME "scm_hash_fn_get_handle" |
0f2d19dd | 67 | { |
c014a02e | 68 | unsigned long k; |
0f2d19dd JB |
69 | SCM h; |
70 | ||
22a52da1 | 71 | SCM_VALIDATE_VECTOR (1, table); |
bfa974f0 | 72 | if (SCM_VECTOR_LENGTH (table) == 0) |
22a52da1 | 73 | return SCM_BOOL_F; |
bfa974f0 DH |
74 | k = hash_fn (obj, SCM_VECTOR_LENGTH (table), closure); |
75 | if (k >= SCM_VECTOR_LENGTH (table)) | |
685c0d71 | 76 | scm_out_of_range ("hash_fn_get_handle", scm_ulong2num (k)); |
0f2d19dd JB |
77 | h = assoc_fn (obj, SCM_VELTS (table)[k], closure); |
78 | return h; | |
79 | } | |
22a52da1 | 80 | #undef FUNC_NAME |
0f2d19dd JB |
81 | |
82 | ||
0f2d19dd | 83 | SCM |
c014a02e ML |
84 | scm_hash_fn_create_handle_x (SCM table,SCM obj,SCM init,unsigned long (*hash_fn)(), |
85 | SCM (*assoc_fn)(),void * closure) | |
cbaadf02 | 86 | #define FUNC_NAME "scm_hash_fn_create_handle_x" |
0f2d19dd | 87 | { |
c014a02e | 88 | unsigned long k; |
0f2d19dd JB |
89 | SCM it; |
90 | ||
0c95b57d | 91 | SCM_ASSERT (SCM_VECTORP (table), table, SCM_ARG1, "hash_fn_create_handle_x"); |
bfa974f0 | 92 | if (SCM_VECTOR_LENGTH (table) == 0) |
cbaadf02 DH |
93 | SCM_MISC_ERROR ("void hashtable", SCM_EOL); |
94 | ||
bfa974f0 DH |
95 | k = hash_fn (obj, SCM_VECTOR_LENGTH (table), closure); |
96 | if (k >= SCM_VECTOR_LENGTH (table)) | |
685c0d71 | 97 | scm_out_of_range ("hash_fn_create_handle_x", scm_ulong2num (k)); |
0f2d19dd JB |
98 | SCM_REDEFER_INTS; |
99 | it = assoc_fn (obj, SCM_VELTS (table)[k], closure); | |
100 | if (SCM_NIMP (it)) | |
101 | { | |
686765af | 102 | SCM_REALLOW_INTS; |
0f2d19dd JB |
103 | return it; |
104 | } | |
105 | { | |
106 | SCM new_bucket; | |
107 | SCM old_bucket; | |
108 | old_bucket = SCM_VELTS (table)[k]; | |
109 | new_bucket = scm_acons (obj, init, old_bucket); | |
110 | SCM_VELTS(table)[k] = new_bucket; | |
111 | SCM_REALLOW_INTS; | |
112 | return SCM_CAR (new_bucket); | |
113 | } | |
114 | } | |
cbaadf02 | 115 | #undef FUNC_NAME |
0f2d19dd | 116 | |
1cc91f1b | 117 | |
0f2d19dd | 118 | SCM |
c014a02e ML |
119 | scm_hash_fn_ref (SCM table,SCM obj,SCM dflt,unsigned long (*hash_fn)(), |
120 | SCM (*assoc_fn)(),void * closure) | |
0f2d19dd | 121 | { |
22a52da1 DH |
122 | SCM it = scm_hash_fn_get_handle (table, obj, hash_fn, assoc_fn, closure); |
123 | if (SCM_CONSP (it)) | |
0f2d19dd | 124 | return SCM_CDR (it); |
22a52da1 DH |
125 | else |
126 | return dflt; | |
0f2d19dd JB |
127 | } |
128 | ||
129 | ||
130 | ||
1cc91f1b | 131 | |
0f2d19dd | 132 | SCM |
c014a02e ML |
133 | scm_hash_fn_set_x (SCM table,SCM obj,SCM val,unsigned long (*hash_fn)(), |
134 | SCM (*assoc_fn)(),void * closure) | |
0f2d19dd JB |
135 | { |
136 | SCM it; | |
137 | ||
138 | it = scm_hash_fn_create_handle_x (table, obj, SCM_BOOL_F, hash_fn, assoc_fn, closure); | |
139 | SCM_SETCDR (it, val); | |
140 | return val; | |
141 | } | |
142 | ||
143 | ||
144 | ||
145 | ||
1cc91f1b | 146 | |
0f2d19dd | 147 | SCM |
c014a02e ML |
148 | scm_hash_fn_remove_x (SCM table,SCM obj,unsigned long (*hash_fn)(),SCM (*assoc_fn)(), |
149 | SCM (*delete_fn)(),void * closure) | |
0f2d19dd | 150 | { |
c014a02e | 151 | unsigned long k; |
0f2d19dd JB |
152 | SCM h; |
153 | ||
0c95b57d | 154 | SCM_ASSERT (SCM_VECTORP (table), table, SCM_ARG1, "hash_fn_remove_x"); |
bfa974f0 | 155 | if (SCM_VECTOR_LENGTH (table) == 0) |
0f2d19dd | 156 | return SCM_EOL; |
bfa974f0 DH |
157 | k = hash_fn (obj, SCM_VECTOR_LENGTH (table), closure); |
158 | if (k >= SCM_VECTOR_LENGTH (table)) | |
685c0d71 | 159 | scm_out_of_range ("hash_fn_remove_x", scm_ulong2num (k)); |
0f2d19dd JB |
160 | h = assoc_fn (obj, SCM_VELTS (table)[k], closure); |
161 | SCM_VELTS(table)[k] = delete_fn (h, SCM_VELTS(table)[k]); | |
162 | return h; | |
163 | } | |
164 | ||
165 | ||
166 | \f | |
167 | ||
a1ec6916 | 168 | SCM_DEFINE (scm_hashq_get_handle, "hashq-get-handle", 2, 0, 0, |
22a52da1 DH |
169 | (SCM table, SCM key), |
170 | "This procedure returns the @code{(key . value)} pair from the\n" | |
171 | "hash table @var{table}. If @var{table} does not hold an\n" | |
172 | "associated value for @var{key}, @code{#f} is returned.\n" | |
173 | "Uses @code{eq?} for equality testing.") | |
1bbd0b84 | 174 | #define FUNC_NAME s_scm_hashq_get_handle |
0f2d19dd | 175 | { |
22a52da1 | 176 | return scm_hash_fn_get_handle (table, key, scm_ihashq, scm_sloppy_assq, 0); |
0f2d19dd | 177 | } |
1bbd0b84 | 178 | #undef FUNC_NAME |
0f2d19dd JB |
179 | |
180 | ||
a1ec6916 | 181 | SCM_DEFINE (scm_hashq_create_handle_x, "hashq-create-handle!", 3, 0, 0, |
d550d22a GB |
182 | (SCM table, SCM key, SCM init), |
183 | "This function looks up @var{key} in @var{table} and returns its handle.\n" | |
b380b885 MD |
184 | "If @var{key} is not already present, a new handle is created which\n" |
185 | "associates @var{key} with @var{init}.") | |
1bbd0b84 | 186 | #define FUNC_NAME s_scm_hashq_create_handle_x |
0f2d19dd | 187 | { |
d550d22a | 188 | return scm_hash_fn_create_handle_x (table, key, init, scm_ihashq, scm_sloppy_assq, 0); |
0f2d19dd | 189 | } |
1bbd0b84 | 190 | #undef FUNC_NAME |
0f2d19dd JB |
191 | |
192 | ||
a1ec6916 | 193 | SCM_DEFINE (scm_hashq_ref, "hashq-ref", 2, 1, 0, |
1e6808ea | 194 | (SCM table, SCM key, SCM dflt), |
b380b885 MD |
195 | "Look up @var{key} in the hash table @var{table}, and return the\n" |
196 | "value (if any) associated with it. If @var{key} is not found,\n" | |
5352393c MG |
197 | "return @var{default} (or @code{#f} if no @var{default} argument\n" |
198 | "is supplied). Uses @code{eq?} for equality testing.") | |
1bbd0b84 | 199 | #define FUNC_NAME s_scm_hashq_ref |
0f2d19dd | 200 | { |
54778cd3 | 201 | if (SCM_UNBNDP (dflt)) |
0f2d19dd | 202 | dflt = SCM_BOOL_F; |
1e6808ea | 203 | return scm_hash_fn_ref (table, key, dflt, scm_ihashq, scm_sloppy_assq, 0); |
0f2d19dd | 204 | } |
1bbd0b84 | 205 | #undef FUNC_NAME |
0f2d19dd JB |
206 | |
207 | ||
208 | ||
a1ec6916 | 209 | SCM_DEFINE (scm_hashq_set_x, "hashq-set!", 3, 0, 0, |
1e6808ea | 210 | (SCM table, SCM key, SCM val), |
5352393c MG |
211 | "Find the entry in @var{table} associated with @var{key}, and\n" |
212 | "store @var{value} there. Uses @code{eq?} for equality testing.") | |
1bbd0b84 | 213 | #define FUNC_NAME s_scm_hashq_set_x |
0f2d19dd | 214 | { |
1e6808ea | 215 | return scm_hash_fn_set_x (table, key, val, scm_ihashq, scm_sloppy_assq, 0); |
0f2d19dd | 216 | } |
1bbd0b84 | 217 | #undef FUNC_NAME |
0f2d19dd JB |
218 | |
219 | ||
220 | ||
a1ec6916 | 221 | SCM_DEFINE (scm_hashq_remove_x, "hashq-remove!", 2, 0, 0, |
1e6808ea | 222 | (SCM table, SCM key), |
5352393c MG |
223 | "Remove @var{key} (and any value associated with it) from\n" |
224 | "@var{table}. Uses @code{eq?} for equality tests.") | |
1bbd0b84 | 225 | #define FUNC_NAME s_scm_hashq_remove_x |
0f2d19dd | 226 | { |
1e6808ea MG |
227 | return scm_hash_fn_remove_x (table, key, scm_ihashq, scm_sloppy_assq, |
228 | scm_delq_x, 0); | |
0f2d19dd | 229 | } |
1bbd0b84 | 230 | #undef FUNC_NAME |
0f2d19dd JB |
231 | |
232 | ||
233 | \f | |
234 | ||
a1ec6916 | 235 | SCM_DEFINE (scm_hashv_get_handle, "hashv-get-handle", 2, 0, 0, |
22a52da1 DH |
236 | (SCM table, SCM key), |
237 | "This procedure returns the @code{(key . value)} pair from the\n" | |
238 | "hash table @var{table}. If @var{table} does not hold an\n" | |
239 | "associated value for @var{key}, @code{#f} is returned.\n" | |
240 | "Uses @code{eqv?} for equality testing.") | |
1bbd0b84 | 241 | #define FUNC_NAME s_scm_hashv_get_handle |
0f2d19dd | 242 | { |
22a52da1 | 243 | return scm_hash_fn_get_handle (table, key, scm_ihashv, scm_sloppy_assv, 0); |
0f2d19dd | 244 | } |
1bbd0b84 | 245 | #undef FUNC_NAME |
0f2d19dd JB |
246 | |
247 | ||
a1ec6916 | 248 | SCM_DEFINE (scm_hashv_create_handle_x, "hashv-create-handle!", 3, 0, 0, |
d550d22a GB |
249 | (SCM table, SCM key, SCM init), |
250 | "This function looks up @var{key} in @var{table} and returns its handle.\n" | |
251 | "If @var{key} is not already present, a new handle is created which\n" | |
252 | "associates @var{key} with @var{init}.") | |
1bbd0b84 | 253 | #define FUNC_NAME s_scm_hashv_create_handle_x |
0f2d19dd | 254 | { |
1e6808ea MG |
255 | return scm_hash_fn_create_handle_x (table, key, init, scm_ihashv, |
256 | scm_sloppy_assv, 0); | |
0f2d19dd | 257 | } |
1bbd0b84 | 258 | #undef FUNC_NAME |
0f2d19dd JB |
259 | |
260 | ||
a1ec6916 | 261 | SCM_DEFINE (scm_hashv_ref, "hashv-ref", 2, 1, 0, |
1e6808ea | 262 | (SCM table, SCM key, SCM dflt), |
d550d22a GB |
263 | "Look up @var{key} in the hash table @var{table}, and return the\n" |
264 | "value (if any) associated with it. If @var{key} is not found,\n" | |
5352393c MG |
265 | "return @var{default} (or @code{#f} if no @var{default} argument\n" |
266 | "is supplied). Uses @code{eqv?} for equality testing.") | |
1bbd0b84 | 267 | #define FUNC_NAME s_scm_hashv_ref |
0f2d19dd | 268 | { |
54778cd3 | 269 | if (SCM_UNBNDP (dflt)) |
0f2d19dd | 270 | dflt = SCM_BOOL_F; |
1e6808ea | 271 | return scm_hash_fn_ref (table, key, dflt, scm_ihashv, scm_sloppy_assv, 0); |
0f2d19dd | 272 | } |
1bbd0b84 | 273 | #undef FUNC_NAME |
0f2d19dd JB |
274 | |
275 | ||
276 | ||
a1ec6916 | 277 | SCM_DEFINE (scm_hashv_set_x, "hashv-set!", 3, 0, 0, |
1e6808ea | 278 | (SCM table, SCM key, SCM val), |
5352393c MG |
279 | "Find the entry in @var{table} associated with @var{key}, and\n" |
280 | "store @var{value} there. Uses @code{eqv?} for equality testing.") | |
1bbd0b84 | 281 | #define FUNC_NAME s_scm_hashv_set_x |
0f2d19dd | 282 | { |
1e6808ea | 283 | return scm_hash_fn_set_x (table, key, val, scm_ihashv, scm_sloppy_assv, 0); |
0f2d19dd | 284 | } |
1bbd0b84 | 285 | #undef FUNC_NAME |
0f2d19dd JB |
286 | |
287 | ||
a1ec6916 | 288 | SCM_DEFINE (scm_hashv_remove_x, "hashv-remove!", 2, 0, 0, |
1e6808ea | 289 | (SCM table, SCM key), |
5352393c MG |
290 | "Remove @var{key} (and any value associated with it) from\n" |
291 | "@var{table}. Uses @code{eqv?} for equality tests.") | |
1bbd0b84 | 292 | #define FUNC_NAME s_scm_hashv_remove_x |
0f2d19dd | 293 | { |
1e6808ea MG |
294 | return scm_hash_fn_remove_x (table, key, scm_ihashv, scm_sloppy_assv, |
295 | scm_delv_x, 0); | |
0f2d19dd | 296 | } |
1bbd0b84 | 297 | #undef FUNC_NAME |
0f2d19dd JB |
298 | |
299 | \f | |
300 | ||
a1ec6916 | 301 | SCM_DEFINE (scm_hash_get_handle, "hash-get-handle", 2, 0, 0, |
22a52da1 DH |
302 | (SCM table, SCM key), |
303 | "This procedure returns the @code{(key . value)} pair from the\n" | |
304 | "hash table @var{table}. If @var{table} does not hold an\n" | |
305 | "associated value for @var{key}, @code{#f} is returned.\n" | |
306 | "Uses @code{equal?} for equality testing.") | |
1bbd0b84 | 307 | #define FUNC_NAME s_scm_hash_get_handle |
0f2d19dd | 308 | { |
22a52da1 | 309 | return scm_hash_fn_get_handle (table, key, scm_ihash, scm_sloppy_assoc, 0); |
0f2d19dd | 310 | } |
1bbd0b84 | 311 | #undef FUNC_NAME |
0f2d19dd JB |
312 | |
313 | ||
a1ec6916 | 314 | SCM_DEFINE (scm_hash_create_handle_x, "hash-create-handle!", 3, 0, 0, |
d550d22a GB |
315 | (SCM table, SCM key, SCM init), |
316 | "This function looks up @var{key} in @var{table} and returns its handle.\n" | |
317 | "If @var{key} is not already present, a new handle is created which\n" | |
318 | "associates @var{key} with @var{init}.") | |
1bbd0b84 | 319 | #define FUNC_NAME s_scm_hash_create_handle_x |
0f2d19dd | 320 | { |
d550d22a | 321 | return scm_hash_fn_create_handle_x (table, key, init, scm_ihash, scm_sloppy_assoc, 0); |
0f2d19dd | 322 | } |
1bbd0b84 | 323 | #undef FUNC_NAME |
0f2d19dd JB |
324 | |
325 | ||
a1ec6916 | 326 | SCM_DEFINE (scm_hash_ref, "hash-ref", 2, 1, 0, |
1e6808ea | 327 | (SCM table, SCM key, SCM dflt), |
d550d22a GB |
328 | "Look up @var{key} in the hash table @var{table}, and return the\n" |
329 | "value (if any) associated with it. If @var{key} is not found,\n" | |
5352393c MG |
330 | "return @var{default} (or @code{#f} if no @var{default} argument\n" |
331 | "is supplied). Uses @code{equal?} for equality testing.") | |
1bbd0b84 | 332 | #define FUNC_NAME s_scm_hash_ref |
0f2d19dd | 333 | { |
54778cd3 | 334 | if (SCM_UNBNDP (dflt)) |
0f2d19dd | 335 | dflt = SCM_BOOL_F; |
1e6808ea | 336 | return scm_hash_fn_ref (table, key, dflt, scm_ihash, scm_sloppy_assoc, 0); |
0f2d19dd | 337 | } |
1bbd0b84 | 338 | #undef FUNC_NAME |
0f2d19dd JB |
339 | |
340 | ||
341 | ||
a1ec6916 | 342 | SCM_DEFINE (scm_hash_set_x, "hash-set!", 3, 0, 0, |
1e6808ea | 343 | (SCM table, SCM key, SCM val), |
5352393c MG |
344 | "Find the entry in @var{table} associated with @var{key}, and\n" |
345 | "store @var{value} there. Uses @code{equal?} for equality\n" | |
346 | "testing.") | |
1bbd0b84 | 347 | #define FUNC_NAME s_scm_hash_set_x |
0f2d19dd | 348 | { |
1e6808ea | 349 | return scm_hash_fn_set_x (table, key, val, scm_ihash, scm_sloppy_assoc, 0); |
0f2d19dd | 350 | } |
1bbd0b84 | 351 | #undef FUNC_NAME |
0f2d19dd JB |
352 | |
353 | ||
354 | ||
a1ec6916 | 355 | SCM_DEFINE (scm_hash_remove_x, "hash-remove!", 2, 0, 0, |
1e6808ea | 356 | (SCM table, SCM key), |
5352393c MG |
357 | "Remove @var{key} (and any value associated with it) from\n" |
358 | "@var{table}. Uses @code{equal?} for equality tests.") | |
1bbd0b84 | 359 | #define FUNC_NAME s_scm_hash_remove_x |
0f2d19dd | 360 | { |
1e6808ea MG |
361 | return scm_hash_fn_remove_x (table, key, scm_ihash, scm_sloppy_assoc, |
362 | scm_delete_x, 0); | |
0f2d19dd | 363 | } |
1bbd0b84 | 364 | #undef FUNC_NAME |
0f2d19dd JB |
365 | |
366 | \f | |
367 | ||
368 | ||
1be6b49c | 369 | typedef struct scm_ihashx_closure_t |
0f2d19dd JB |
370 | { |
371 | SCM hash; | |
372 | SCM assoc; | |
373 | SCM delete; | |
1be6b49c | 374 | } scm_ihashx_closure_t; |
0f2d19dd JB |
375 | |
376 | ||
1cc91f1b | 377 | |
c014a02e ML |
378 | static unsigned long |
379 | scm_ihashx (SCM obj, unsigned long n, scm_ihashx_closure_t *closure) | |
0f2d19dd JB |
380 | { |
381 | SCM answer; | |
44d3cb0d | 382 | SCM_DEFER_INTS; |
0f2d19dd | 383 | answer = scm_apply (closure->hash, |
c014a02e | 384 | SCM_LIST2 (obj, scm_ulong2num ((unsigned long)n)), |
0f2d19dd | 385 | SCM_EOL); |
44d3cb0d | 386 | SCM_ALLOW_INTS; |
0f2d19dd JB |
387 | return SCM_INUM (answer); |
388 | } | |
389 | ||
390 | ||
1cc91f1b | 391 | |
0f2d19dd | 392 | static SCM |
1be6b49c | 393 | scm_sloppy_assx (SCM obj, SCM alist, scm_ihashx_closure_t *closure) |
0f2d19dd JB |
394 | { |
395 | SCM answer; | |
44d3cb0d | 396 | SCM_DEFER_INTS; |
0f2d19dd | 397 | answer = scm_apply (closure->assoc, |
e0c08f17 | 398 | SCM_LIST2 (obj, alist), |
0f2d19dd | 399 | SCM_EOL); |
44d3cb0d | 400 | SCM_ALLOW_INTS; |
0f2d19dd JB |
401 | return answer; |
402 | } | |
403 | ||
404 | ||
405 | ||
1cc91f1b | 406 | |
0f2d19dd | 407 | static SCM |
1be6b49c | 408 | scm_delx_x (SCM obj, SCM alist, scm_ihashx_closure_t *closure) |
0f2d19dd JB |
409 | { |
410 | SCM answer; | |
44d3cb0d | 411 | SCM_DEFER_INTS; |
0f2d19dd | 412 | answer = scm_apply (closure->delete, |
e0c08f17 | 413 | SCM_LIST2 (obj, alist), |
0f2d19dd | 414 | SCM_EOL); |
44d3cb0d | 415 | SCM_ALLOW_INTS; |
0f2d19dd JB |
416 | return answer; |
417 | } | |
418 | ||
419 | ||
420 | ||
a1ec6916 | 421 | SCM_DEFINE (scm_hashx_get_handle, "hashx-get-handle", 4, 0, 0, |
1e6808ea MG |
422 | (SCM hash, SCM assoc, SCM table, SCM key), |
423 | "This behaves the same way as the corresponding\n" | |
424 | "@code{-get-handle} function, but uses @var{hash} as a hash\n" | |
425 | "function and @var{assoc} to compare keys. @code{hash} must be\n" | |
426 | "a function that takes two arguments, a key to be hashed and a\n" | |
d550d22a GB |
427 | "table size. @code{assoc} must be an associator function, like\n" |
428 | "@code{assoc}, @code{assq} or @code{assv}.") | |
1bbd0b84 | 429 | #define FUNC_NAME s_scm_hashx_get_handle |
0f2d19dd | 430 | { |
1be6b49c | 431 | scm_ihashx_closure_t closure; |
0f2d19dd JB |
432 | closure.hash = hash; |
433 | closure.assoc = assoc; | |
1e6808ea MG |
434 | return scm_hash_fn_get_handle (table, key, scm_ihashx, scm_sloppy_assx, |
435 | (void *)&closure); | |
0f2d19dd | 436 | } |
1bbd0b84 | 437 | #undef FUNC_NAME |
0f2d19dd JB |
438 | |
439 | ||
a1ec6916 | 440 | SCM_DEFINE (scm_hashx_create_handle_x, "hashx-create-handle!", 5, 0, 0, |
1e6808ea MG |
441 | (SCM hash, SCM assoc, SCM table, SCM key, SCM init), |
442 | "This behaves the same way as the corresponding\n" | |
443 | "@code{-create-handle} function, but uses @var{hash} as a hash\n" | |
444 | "function and @var{assoc} to compare keys. @code{hash} must be\n" | |
445 | "a function that takes two arguments, a key to be hashed and a\n" | |
d550d22a GB |
446 | "table size. @code{assoc} must be an associator function, like\n" |
447 | "@code{assoc}, @code{assq} or @code{assv}.") | |
1bbd0b84 | 448 | #define FUNC_NAME s_scm_hashx_create_handle_x |
0f2d19dd | 449 | { |
1be6b49c | 450 | scm_ihashx_closure_t closure; |
0f2d19dd JB |
451 | closure.hash = hash; |
452 | closure.assoc = assoc; | |
1e6808ea MG |
453 | return scm_hash_fn_create_handle_x (table, key, init, scm_ihashx, |
454 | scm_sloppy_assx, (void *)&closure); | |
0f2d19dd | 455 | } |
1bbd0b84 | 456 | #undef FUNC_NAME |
0f2d19dd JB |
457 | |
458 | ||
459 | ||
a1ec6916 | 460 | SCM_DEFINE (scm_hashx_ref, "hashx-ref", 4, 1, 0, |
1e6808ea | 461 | (SCM hash, SCM assoc, SCM table, SCM key, SCM dflt), |
d550d22a | 462 | "This behaves the same way as the corresponding @code{ref}\n" |
1e6808ea MG |
463 | "function, but uses @var{hash} as a hash function and\n" |
464 | "@var{assoc} to compare keys. @code{hash} must be a function\n" | |
465 | "that takes two arguments, a key to be hashed and a table size.\n" | |
466 | "@code{assoc} must be an associator function, like @code{assoc},\n" | |
467 | "@code{assq} or @code{assv}.\n" | |
468 | "\n" | |
469 | "By way of illustration, @code{hashq-ref table key} is\n" | |
470 | "equivalent to @code{hashx-ref hashq assq table key}.") | |
1bbd0b84 | 471 | #define FUNC_NAME s_scm_hashx_ref |
0f2d19dd | 472 | { |
1be6b49c | 473 | scm_ihashx_closure_t closure; |
54778cd3 | 474 | if (SCM_UNBNDP (dflt)) |
0f2d19dd JB |
475 | dflt = SCM_BOOL_F; |
476 | closure.hash = hash; | |
477 | closure.assoc = assoc; | |
1e6808ea MG |
478 | return scm_hash_fn_ref (table, key, dflt, scm_ihashx, scm_sloppy_assx, |
479 | (void *)&closure); | |
0f2d19dd | 480 | } |
1bbd0b84 | 481 | #undef FUNC_NAME |
0f2d19dd JB |
482 | |
483 | ||
484 | ||
485 | ||
a1ec6916 | 486 | SCM_DEFINE (scm_hashx_set_x, "hashx-set!", 5, 0, 0, |
1e6808ea | 487 | (SCM hash, SCM assoc, SCM table, SCM key, SCM val), |
d550d22a | 488 | "This behaves the same way as the corresponding @code{set!}\n" |
1e6808ea MG |
489 | "function, but uses @var{hash} as a hash function and\n" |
490 | "@var{assoc} to compare keys. @code{hash} must be a function\n" | |
491 | "that takes two arguments, a key to be hashed and a table size.\n" | |
492 | "@code{assoc} must be an associator function, like @code{assoc},\n" | |
493 | "@code{assq} or @code{assv}.\n" | |
494 | "\n" | |
495 | " By way of illustration, @code{hashq-set! table key} is\n" | |
496 | "equivalent to @code{hashx-set! hashq assq table key}.") | |
1bbd0b84 | 497 | #define FUNC_NAME s_scm_hashx_set_x |
0f2d19dd | 498 | { |
1be6b49c | 499 | scm_ihashx_closure_t closure; |
0f2d19dd JB |
500 | closure.hash = hash; |
501 | closure.assoc = assoc; | |
1e6808ea MG |
502 | return scm_hash_fn_set_x (table, key, val, scm_ihashx, scm_sloppy_assx, |
503 | (void *)&closure); | |
0f2d19dd | 504 | } |
1bbd0b84 | 505 | #undef FUNC_NAME |
0f2d19dd JB |
506 | |
507 | ||
1cc91f1b | 508 | |
0f2d19dd | 509 | SCM |
1be6b49c | 510 | scm_hashx_remove_x (SCM hash, SCM assoc, SCM delete, SCM table, SCM obj) |
0f2d19dd | 511 | { |
1be6b49c | 512 | scm_ihashx_closure_t closure; |
0f2d19dd JB |
513 | closure.hash = hash; |
514 | closure.assoc = assoc; | |
515 | closure.delete = delete; | |
516 | return scm_hash_fn_remove_x (table, obj, scm_ihashx, scm_sloppy_assx, scm_delx_x, 0); | |
517 | } | |
518 | ||
b94903c2 MD |
519 | static SCM |
520 | fold_proc (void *proc, SCM key, SCM data, SCM value) | |
521 | { | |
54778cd3 | 522 | return scm_apply (SCM_PACK (proc), SCM_LIST3 (key, data, value), SCM_EOL); |
b94903c2 MD |
523 | } |
524 | ||
a1ec6916 | 525 | SCM_DEFINE (scm_hash_fold, "hash-fold", 3, 0, 0, |
1bbd0b84 | 526 | (SCM proc, SCM init, SCM table), |
d550d22a GB |
527 | "An iterator over hash-table elements.\n" |
528 | "Accumulates and returns a result by applying PROC successively.\n" | |
529 | "The arguments to PROC are \"(key value prior-result)\" where key\n" | |
530 | "and value are successive pairs from the hash table TABLE, and\n" | |
531 | "prior-result is either INIT (for the first application of PROC)\n" | |
532 | "or the return value of the previous application of PROC.\n" | |
533 | "For example, @code{(hash-fold acons () tab)} will convert a hash\n" | |
534 | "table into an a-list of key-value pairs.\n") | |
1bbd0b84 | 535 | #define FUNC_NAME s_scm_hash_fold |
b94903c2 | 536 | { |
3b3b36dd GB |
537 | SCM_VALIDATE_PROC (1,proc); |
538 | SCM_VALIDATE_VECTOR (3,table); | |
54778cd3 | 539 | return scm_internal_hash_fold (fold_proc, (void *) SCM_UNPACK (proc), init, table); |
b94903c2 | 540 | } |
1bbd0b84 | 541 | #undef FUNC_NAME |
c7df61cd MD |
542 | |
543 | SCM | |
8cd5191b | 544 | scm_internal_hash_fold (SCM (*fn) (), void *closure, SCM init, SCM table) |
c7df61cd | 545 | { |
c014a02e | 546 | long i, n = SCM_VECTOR_LENGTH (table); |
c7df61cd MD |
547 | SCM result = init; |
548 | for (i = 0; i < n; ++i) | |
549 | { | |
550 | SCM ls = SCM_VELTS (table)[i], handle; | |
22a52da1 | 551 | while (!SCM_NULLP (ls)) |
c7df61cd | 552 | { |
0c95b57d | 553 | SCM_ASSERT (SCM_CONSP (ls), |
dd85ce47 | 554 | table, SCM_ARG3, s_scm_hash_fold); |
c7df61cd | 555 | handle = SCM_CAR (ls); |
0c95b57d | 556 | SCM_ASSERT (SCM_CONSP (handle), |
dd85ce47 | 557 | table, SCM_ARG3, s_scm_hash_fold); |
c7df61cd MD |
558 | result = fn (closure, SCM_CAR (handle), SCM_CDR (handle), result); |
559 | ls = SCM_CDR (ls); | |
560 | } | |
561 | } | |
562 | return result; | |
563 | } | |
564 | ||
0f2d19dd JB |
565 | \f |
566 | ||
1cc91f1b | 567 | |
0f2d19dd JB |
568 | void |
569 | scm_init_hashtab () | |
0f2d19dd | 570 | { |
8dc9439f | 571 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 572 | #include "libguile/hashtab.x" |
8dc9439f | 573 | #endif |
0f2d19dd | 574 | } |
89e00824 ML |
575 | |
576 | /* | |
577 | Local Variables: | |
578 | c-file-style: "gnu" | |
579 | End: | |
580 | */ |