diff options
Diffstat (limited to 'libguile/hashtab.c')
-rw-r--r-- | libguile/hashtab.c | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/libguile/hashtab.c b/libguile/hashtab.c new file mode 100644 index 000000000..fd37e2574 --- /dev/null +++ b/libguile/hashtab.c @@ -0,0 +1,651 @@ +/* Copyright (C) 1995,1996 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * As a special exception, the Free Software Foundation gives permission + * for additional uses of the text contained in its release of GUILE. + * + * The exception is that, if you link the GUILE library with other files + * to produce an executable, this does not by itself cause the + * resulting executable to be covered by the GNU General Public License. + * Your use of that executable is in no way restricted on account of + * linking the GUILE library code into it. + * + * This exception does not however invalidate any other reasons why + * the executable file might be covered by the GNU General Public License. + * + * This exception applies only to the code released by the + * Free Software Foundation under the name GUILE. If you copy + * code from other Free Software Foundation releases into a copy of + * GUILE, as the General Public License permits, the exception does + * not apply to the code that you add in this way. To avoid misleading + * anyone as to the status of such modified files, you must delete + * this exception notice from them. + * + * If you write modifications of your own for GUILE, it is your choice + * whether to permit this exception to apply to your modifications. + * If you do not wish that, delete this exception notice. + */ + + +#include <stdio.h> +#include "_scm.h" + + + +#ifdef __STDC__ +SCM +scm_hash_fn_get_handle (SCM table, SCM obj, unsigned int (*hash_fn)(), SCM (*assoc_fn)(), void * closure) +#else +SCM +scm_hash_fn_get_handle (table, obj, hash_fn, assoc_fn, closure) + SCM table; + SCM obj; + unsigned int (*hash_fn)(); + SCM (*assoc_fn)(); + void * closure; +#endif +{ + int k; + SCM h; + + SCM_ASSERT (SCM_NIMP (table) && SCM_VECTORP (table), table, SCM_ARG1, "hash_fn_get_handle"); + if (SCM_LENGTH (table) == 0) + return SCM_EOL; + k = hash_fn (obj, SCM_LENGTH (table), closure); + SCM_ASSERT ((0 <= k) && (k < SCM_LENGTH (table)), + SCM_MAKINUM (k), + SCM_OUTOFRANGE, + "hash_fn_get_handle"); + h = assoc_fn (obj, SCM_VELTS (table)[k], closure); + return h; +} + + +#ifdef __STDC__ +SCM +scm_hash_fn_create_handle_x (SCM table, SCM obj, SCM init, unsigned int (*hash_fn)(), SCM (*assoc_fn)(), void * closure) +#else +SCM +scm_hash_fn_create_handle_x (table, obj, init, hash_fn, assoc_fn, closure) + SCM table; + SCM obj; + SCM init; + unsigned int (*hash_fn)(); + SCM (*assoc_fn)(); + void * closure; +#endif +{ + int k; + SCM it; + + SCM_ASSERT (SCM_NIMP (table) && SCM_VECTORP (table), table, SCM_ARG1, "hash_fn_create_handle_x"); + if (SCM_LENGTH (table) == 0) + return SCM_EOL; + k = hash_fn (obj, SCM_LENGTH (table), closure); + SCM_ASSERT ((0 <= k) && (k < SCM_LENGTH (table)), + SCM_MAKINUM (k), + SCM_OUTOFRANGE, + "hash_fn_create_handle_x"); + SCM_REDEFER_INTS; + it = assoc_fn (obj, SCM_VELTS (table)[k], closure); + if (SCM_NIMP (it)) + { + return it; + } + { + SCM new_bucket; + SCM old_bucket; + old_bucket = SCM_VELTS (table)[k]; + new_bucket = scm_acons (obj, init, old_bucket); + SCM_VELTS(table)[k] = new_bucket; + SCM_REALLOW_INTS; + return SCM_CAR (new_bucket); + } +} + + + +#ifdef __STDC__ +SCM +scm_hash_fn_ref (SCM table, SCM obj, SCM dflt, unsigned int (*hash_fn)(), SCM (*assoc_fn)(), void * closure) +#else +SCM +scm_hash_fn_ref (table, obj, dflt, hash_fn, assoc_fn, closure) + SCM table; + SCM obj; + SCM dflt; + unsigned int (*hash_fn)(); + SCM (*assoc_fn)(); + void * closure; +#endif +{ + SCM it; + + it = scm_hash_fn_get_handle (table, obj, hash_fn, assoc_fn, closure); + if (SCM_IMP (it)) + return dflt; + else + return SCM_CDR (it); +} + + + +#ifdef __STDC__ +SCM +scm_hash_fn_set_x (SCM table, SCM obj, SCM val, unsigned int (*hash_fn)(), SCM (*assoc_fn)(), void * closure) +#else +SCM +scm_hash_fn_set_x (table, obj, val, hash_fn, assoc_fn, closure) + SCM table; + SCM obj; + SCM val; + unsigned int (*hash_fn)(); + SCM (*assoc_fn)(); + void * closure; +#endif +{ + SCM it; + + it = scm_hash_fn_create_handle_x (table, obj, SCM_BOOL_F, hash_fn, assoc_fn, closure); + SCM_SETCDR (it, val); + return val; +} + + + + +#ifdef __STDC__ +SCM +scm_hash_fn_remove_x (SCM table, + SCM obj, + unsigned int (*hash_fn)(), + SCM (*assoc_fn)(), + SCM (*delete_fn)(), + void * closure) +#else +SCM +scm_hash_fn_remove_x (table, obj, hash_fn, assoc_fn, delete_fn, closure) + SCM table; + SCM obj; + unsigned int (*hash_fn)(); + SCM (*assoc_fn)(); + SCM (*delete_fn)(); + void * closure; +#endif +{ + int k; + SCM h; + + SCM_ASSERT (SCM_NIMP (table) && SCM_VECTORP (table), table, SCM_ARG1, "hash_fn_remove_x"); + if (SCM_LENGTH (table) == 0) + return SCM_EOL; + k = hash_fn (obj, SCM_LENGTH (table), closure); + SCM_ASSERT ((0 <= k) && (k < SCM_LENGTH (table)), + SCM_MAKINUM (k), + SCM_OUTOFRANGE, + "hash_fn_remove_x"); + h = assoc_fn (obj, SCM_VELTS (table)[k], closure); + SCM_VELTS(table)[k] = delete_fn (h, SCM_VELTS(table)[k]); + return h; +} + + + + +SCM_PROC (s_hashq_get_handle, "hashq-get-handle", 2, 0, 0, scm_hashq_get_handle); +#ifdef __STDC__ +SCM +scm_hashq_get_handle (SCM table, SCM obj) +#else +SCM +scm_hashq_get_handle (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_get_handle (table, obj, scm_ihashq, scm_sloppy_assq, 0); +} + + +SCM_PROC (s_hashq_create_handle_x, "hashq-create-handle!", 3, 0, 0, scm_hashq_create_handle_x); +#ifdef __STDC__ +SCM +scm_hashq_create_handle_x (SCM table, SCM obj, SCM init) +#else +SCM +scm_hashq_create_handle_x (table, obj, init) + SCM table; + SCM obj; + SCM init; +#endif +{ + return scm_hash_fn_create_handle_x (table, obj, init, scm_ihashq, scm_sloppy_assq, 0); +} + + +SCM_PROC (s_hashq_ref, "hashq-ref", 2, 1, 0, scm_hashq_ref); +#ifdef __STDC__ +SCM +scm_hashq_ref (SCM table, SCM obj, SCM dflt) +#else +SCM +scm_hashq_ref (table, obj, dflt) + SCM table; + SCM obj; + SCM dflt; +#endif +{ + if (dflt == SCM_UNDEFINED) + dflt = SCM_BOOL_F; + return scm_hash_fn_ref (table, obj, dflt, scm_ihashq, scm_sloppy_assq, 0); +} + + + +SCM_PROC (s_hashq_set_x, "hashq-set!", 3, 0, 0, scm_hashq_set_x); +#ifdef __STDC__ +SCM +scm_hashq_set_x (SCM table, SCM obj, SCM val) +#else +SCM +scm_hashq_set_x (table, obj, val) + SCM table; + SCM obj; + SCM val; +#endif +{ + return scm_hash_fn_set_x (table, obj, val, scm_ihashq, scm_sloppy_assq, 0); +} + + + +SCM_PROC (s_hashq_remove_x, "hashq-remove!", 2, 0, 0, scm_hashq_remove_x); +#ifdef __STDC__ +SCM +scm_hashq_remove_x (SCM table, SCM obj) +#else +SCM +scm_hashq_remove_x (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_remove_x (table, obj, scm_ihashq, scm_sloppy_assq, scm_delq_x, 0); +} + + + + +SCM_PROC (s_hashv_get_handle, "hashv-get-handle", 2, 0, 0, scm_hashv_get_handle); +#ifdef __STDC__ +SCM +scm_hashv_get_handle (SCM table, SCM obj) +#else +SCM +scm_hashv_get_handle (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_get_handle (table, obj, scm_ihashv, scm_sloppy_assv, 0); +} + + +SCM_PROC (s_hashv_create_handle_x, "hashv-create-handle!", 3, 0, 0, scm_hashv_create_handle_x); +#ifdef __STDC__ +SCM +scm_hashv_create_handle_x (SCM table, SCM obj, SCM init) +#else +SCM +scm_hashv_create_handle_x (table, obj, init) + SCM table; + SCM obj; + SCM init; +#endif +{ + return scm_hash_fn_create_handle_x (table, obj, init, scm_ihashv, scm_sloppy_assv, 0); +} + + +SCM_PROC (s_hashv_ref, "hashv-ref", 2, 1, 0, scm_hashv_ref); +#ifdef __STDC__ +SCM +scm_hashv_ref (SCM table, SCM obj, SCM dflt) +#else +SCM +scm_hashv_ref (table, obj, dflt) + SCM table; + SCM obj; + SCM dflt; +#endif +{ + if (dflt == SCM_UNDEFINED) + dflt = SCM_BOOL_F; + return scm_hash_fn_ref (table, obj, dflt, scm_ihashv, scm_sloppy_assv, 0); +} + + + +SCM_PROC (s_hashv_set_x, "hashv-set!", 3, 0, 0, scm_hashv_set_x); +#ifdef __STDC__ +SCM +scm_hashv_set_x (SCM table, SCM obj, SCM val) +#else +SCM +scm_hashv_set_x (table, obj, val) + SCM table; + SCM obj; + SCM val; +#endif +{ + return scm_hash_fn_set_x (table, obj, val, scm_ihashv, scm_sloppy_assv, 0); +} + + +SCM_PROC (s_hashv_remove_x, "hashv-remove!", 2, 0, 0, scm_hashv_remove_x); +#ifdef __STDC__ +SCM +scm_hashv_remove_x (SCM table, SCM obj) +#else +SCM +scm_hashv_remove_x (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_remove_x (table, obj, scm_ihashv, scm_sloppy_assv, scm_delv_x, 0); +} + + + +SCM_PROC (s_hash_get_handle, "hash-get-handle", 2, 0, 0, scm_hash_get_handle); +#ifdef __STDC__ +SCM +scm_hash_get_handle (SCM table, SCM obj) +#else +SCM +scm_hash_get_handle (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_get_handle (table, obj, scm_ihash, scm_sloppy_assoc, 0); +} + + +SCM_PROC (s_hash_create_handle_x, "hash-create-handle!", 3, 0, 0, scm_hash_create_handle_x); +#ifdef __STDC__ +SCM +scm_hash_create_handle_x (SCM table, SCM obj, SCM init) +#else +SCM +scm_hash_create_handle_x (table, obj, init) + SCM table; + SCM obj; + SCM init; +#endif +{ + return scm_hash_fn_create_handle_x (table, obj, init, scm_ihash, scm_sloppy_assoc, 0); +} + + +SCM_PROC (s_hash_ref, "hash-ref", 2, 1, 0, scm_hash_ref); +#ifdef __STDC__ +SCM +scm_hash_ref (SCM table, SCM obj, SCM dflt) +#else +SCM +scm_hash_ref (table, obj, dflt) + SCM table; + SCM obj; + SCM dflt; +#endif +{ + if (dflt == SCM_UNDEFINED) + dflt = SCM_BOOL_F; + return scm_hash_fn_ref (table, obj, dflt, scm_ihash, scm_sloppy_assoc, 0); +} + + + +SCM_PROC (s_hash_set_x, "hash-set!", 3, 0, 0, scm_hash_set_x); +#ifdef __STDC__ +SCM +scm_hash_set_x (SCM table, SCM obj, SCM val) +#else +SCM +scm_hash_set_x (table, obj, val) + SCM table; + SCM obj; + SCM val; +#endif +{ + return scm_hash_fn_set_x (table, obj, val, scm_ihash, scm_sloppy_assoc, 0); +} + + + +SCM_PROC (s_hash_remove_x, "hash-remove!", 2, 0, 0, scm_hash_remove_x); +#ifdef __STDC__ +SCM +scm_hash_remove_x (SCM table, SCM obj) +#else +SCM +scm_hash_remove_x (table, obj) + SCM table; + SCM obj; +#endif +{ + return scm_hash_fn_remove_x (table, obj, scm_ihash, scm_sloppy_assoc, scm_delete_x, 0); +} + + + + +struct scm_ihashx_closure +{ + SCM hash; + SCM assoc; + SCM delete; +}; + + +#ifdef __STDC__ +static unsigned int +scm_ihashx (SCM obj, unsigned int n, struct scm_ihashx_closure * closure) +#else +static unsigned int +scm_ihashx (obj, n, closure) + SCM obj; + unsigned int n; + struct scm_ihashx_closure * closure; +#endif +{ + SCM answer; + SCM_ALLOW_INTS; + answer = scm_apply (closure->hash, + scm_listify (obj, scm_ulong2num ((unsigned long)n), SCM_UNDEFINED), + SCM_EOL); + SCM_DEFER_INTS; + return SCM_INUM (answer); +} + + +#ifdef __STDC__ +static SCM +scm_sloppy_assx (SCM obj, SCM alist, struct scm_ihashx_closure * closure) +#else +static SCM +scm_sloppy_assx (obj, alist, closure) + SCM obj; + SCM alist; + struct scm_ihashx_closure * closure; +#endif +{ + SCM answer; + SCM_ALLOW_INTS; + answer = scm_apply (closure->assoc, + scm_listify (obj, alist, SCM_UNDEFINED), + SCM_EOL); + SCM_DEFER_INTS; + return answer; +} + + + +#ifdef __STDC__ +static SCM +scm_delx_x (SCM obj, SCM alist, struct scm_ihashx_closure * closure) +#else +static SCM +scm_delx_x (obj, alist, closure) + SCM obj; + SCM alist; + struct scm_ihashx_closure * closure; +#endif +{ + SCM answer; + SCM_ALLOW_INTS; + answer = scm_apply (closure->delete, + scm_listify (obj, alist, SCM_UNDEFINED), + SCM_EOL); + SCM_DEFER_INTS; + return answer; +} + + + +SCM_PROC (s_hashx_get_handle, "hashx-get-handle", 4, 0, 0, scm_hashx_get_handle); +#ifdef __STDC__ +SCM +scm_hashx_get_handle (SCM hash, SCM assoc, SCM table, SCM obj) +#else +SCM +scm_hashx_get_handle (hash, assoc, table, obj) + SCM hash; + SCM assoc; + SCM table; + SCM obj; +#endif +{ + struct scm_ihashx_closure closure; + closure.hash = hash; + closure.assoc = assoc; + return scm_hash_fn_get_handle (table, obj, scm_ihashx, scm_sloppy_assx, (void *)&closure); +} + + +SCM_PROC (s_hashx_create_handle_x, "hashx-create-handle!", 5, 0, 0, scm_hashx_create_handle_x); +#ifdef __STDC__ +SCM +scm_hashx_create_handle_x (SCM hash, SCM assoc, SCM table, SCM obj, SCM init) +#else +SCM +scm_hashx_create_handle_x (hash, assoc, table, obj, init) + SCM hash; + SCM assoc; + SCM table; + SCM obj; + SCM init; +#endif +{ + struct scm_ihashx_closure closure; + closure.hash = hash; + closure.assoc = assoc; + return scm_hash_fn_create_handle_x (table, obj, init, scm_ihashx, scm_sloppy_assx, (void *)&closure); +} + + + +SCM_PROC (s_hashx_ref, "hashx-ref", 4, 1, 0, scm_hashx_ref); +#ifdef __STDC__ +SCM +scm_hashx_ref (SCM hash, SCM assoc, SCM table, SCM obj, SCM dflt) +#else +SCM +scm_hashx_ref (hash, assoc, table, obj, dflt) + SCM hash; + SCM assoc; + SCM table; + SCM obj; + SCM dflt; +#endif +{ + struct scm_ihashx_closure closure; + if (dflt == SCM_UNDEFINED) + dflt = SCM_BOOL_F; + closure.hash = hash; + closure.assoc = assoc; + return scm_hash_fn_ref (table, obj, dflt, scm_ihashx, scm_sloppy_assx, (void *)&closure); +} + + + + +SCM_PROC (s_hashx_set_x, "hashx-set!", 5, 0, 0, scm_hashx_set_x); +#ifdef __STDC__ +SCM +scm_hashx_set_x (SCM hash, SCM assoc, SCM table, SCM obj, SCM val) +#else +SCM +scm_hashx_set_x (hash, assoc, table, obj, val) + SCM hash; + SCM assoc; + SCM table; + SCM obj; + SCM val; +#endif +{ + struct scm_ihashx_closure closure; + closure.hash = hash; + closure.assoc = assoc; + return scm_hash_fn_set_x (table, obj, val, scm_ihashx, scm_sloppy_assx, (void *)&closure); +} + + +#ifdef __STDC__ +SCM +scm_hashx_remove_x (SCM hash, SCM assoc, SCM delete, SCM table, SCM obj) +#else +SCM +scm_hashx_remove_x (hash, assoc, delete, table, obj) + SCM hash; + SCM assoc; + SCM delete; + SCM table; + SCM obj; +#endif +{ + struct scm_ihashx_closure closure; + closure.hash = hash; + closure.assoc = assoc; + closure.delete = delete; + return scm_hash_fn_remove_x (table, obj, scm_ihashx, scm_sloppy_assx, scm_delx_x, 0); +} + + + +#ifdef __STDC__ +void +scm_init_hashtab (void) +#else +void +scm_init_hashtab () +#endif +{ +#include "hashtab.x" +} + |