#ifndef SCM_PAIRS_H
#define SCM_PAIRS_H
-/* Copyright (C) 1995,1996,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,2000,2001, 2004, 2006 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 library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser 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, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 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. */
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
\f
\f
#if (SCM_DEBUG_PAIR_ACCESSES == 1)
-# include "libguile/struct.h"
# define SCM_VALIDATE_PAIR(cell, expr) \
- ((!SCM_CONSP (cell) ? scm_error_pair_access (cell), 0 : 0), (expr))
+ ((!scm_is_pair (cell) ? scm_error_pair_access (cell), 0 : 0), (expr))
#else
# define SCM_VALIDATE_PAIR(cell, expr) (expr)
#endif
-#define SCM_NULLP(x) (SCM_EQ_P ((x), SCM_EOL))
-#define SCM_NNULLP(x) (!SCM_NULLP (x))
+#define scm_is_null(x) (scm_is_eq ((x), SCM_EOL))
#define SCM_CAR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_0 (x)))
#define SCM_CDR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_1 (x)))
#if (SCM_DEBUG_PAIR_ACCESSES == 1)
SCM_API void scm_error_pair_access (SCM);
#endif
+
+SCM_API int scm_is_pair (SCM x);
+
SCM_API SCM scm_cons (SCM x, SCM y);
SCM_API SCM scm_cons2 (SCM w, SCM x, SCM y);
SCM_API SCM scm_pair_p (SCM x);
+SCM_API SCM scm_car (SCM x);
+SCM_API SCM scm_cdr (SCM x);
SCM_API SCM scm_set_car_x (SCM pair, SCM value);
SCM_API SCM scm_set_cdr_x (SCM pair, SCM value);
+
+#define SCM_I_D_PAT 0x02 /* 00000010 */
+#define SCM_I_A_PAT 0x03 /* 00000011 */
+#define SCM_I_DD_PAT 0x0a /* 00001010 */
+#define SCM_I_DA_PAT 0x0b /* 00001011 */
+#define SCM_I_AD_PAT 0x0e /* 00001110 */
+#define SCM_I_AA_PAT 0x0f /* 00001111 */
+#define SCM_I_DDD_PAT 0x2a /* 00101010 */
+#define SCM_I_DDA_PAT 0x2b /* 00101011 */
+#define SCM_I_DAD_PAT 0x2e /* 00101110 */
+#define SCM_I_DAA_PAT 0x2f /* 00101111 */
+#define SCM_I_ADD_PAT 0x3a /* 00111010 */
+#define SCM_I_ADA_PAT 0x3b /* 00111011 */
+#define SCM_I_AAD_PAT 0x3e /* 00111110 */
+#define SCM_I_AAA_PAT 0x3f /* 00111111 */
+#define SCM_I_DDDD_PAT 0xaa /* 10101010 */
+#define SCM_I_DDDA_PAT 0xab /* 10101011 */
+#define SCM_I_DDAD_PAT 0xae /* 10101110 */
+#define SCM_I_DDAA_PAT 0xaf /* 10101111 */
+#define SCM_I_DADD_PAT 0xba /* 10111010 */
+#define SCM_I_DADA_PAT 0xbb /* 10111011 */
+#define SCM_I_DAAD_PAT 0xbe /* 10111110 */
+#define SCM_I_DAAA_PAT 0xbf /* 10111111 */
+#define SCM_I_ADDD_PAT 0xea /* 11101010 */
+#define SCM_I_ADDA_PAT 0xeb /* 11101011 */
+#define SCM_I_ADAD_PAT 0xee /* 11101110 */
+#define SCM_I_ADAA_PAT 0xef /* 11101111 */
+#define SCM_I_AADD_PAT 0xfa /* 11111010 */
+#define SCM_I_AADA_PAT 0xfb /* 11111011 */
+#define SCM_I_AAAD_PAT 0xfe /* 11111110 */
+#define SCM_I_AAAA_PAT 0xff /* 11111111 */
+
+SCM_API SCM scm_i_chase_pairs (SCM x, scm_t_uint32 pattern);
+
+#define scm_cddr(x) scm_i_chase_pairs ((x), SCM_I_DD_PAT)
+#define scm_cdar(x) scm_i_chase_pairs ((x), SCM_I_DA_PAT)
+#define scm_cadr(x) scm_i_chase_pairs ((x), SCM_I_AD_PAT)
+#define scm_caar(x) scm_i_chase_pairs ((x), SCM_I_AA_PAT)
+#define scm_cdddr(x) scm_i_chase_pairs ((x), SCM_I_DDD_PAT)
+#define scm_cddar(x) scm_i_chase_pairs ((x), SCM_I_DDA_PAT)
+#define scm_cdadr(x) scm_i_chase_pairs ((x), SCM_I_DAD_PAT)
+#define scm_cdaar(x) scm_i_chase_pairs ((x), SCM_I_DAA_PAT)
+#define scm_caddr(x) scm_i_chase_pairs ((x), SCM_I_ADD_PAT)
+#define scm_cadar(x) scm_i_chase_pairs ((x), SCM_I_ADA_PAT)
+#define scm_caadr(x) scm_i_chase_pairs ((x), SCM_I_AAD_PAT)
+#define scm_caaar(x) scm_i_chase_pairs ((x), SCM_I_AAA_PAT)
+#define scm_cddddr(x) scm_i_chase_pairs ((x), SCM_I_DDDD_PAT)
+#define scm_cdddar(x) scm_i_chase_pairs ((x), SCM_I_DDDA_PAT)
+#define scm_cddadr(x) scm_i_chase_pairs ((x), SCM_I_DDAD_PAT)
+#define scm_cddaar(x) scm_i_chase_pairs ((x), SCM_I_DDAA_PAT)
+#define scm_cdaddr(x) scm_i_chase_pairs ((x), SCM_I_DADD_PAT)
+#define scm_cdadar(x) scm_i_chase_pairs ((x), SCM_I_DADA_PAT)
+#define scm_cdaadr(x) scm_i_chase_pairs ((x), SCM_I_DAAD_PAT)
+#define scm_cdaaar(x) scm_i_chase_pairs ((x), SCM_I_DAAA_PAT)
+#define scm_cadddr(x) scm_i_chase_pairs ((x), SCM_I_ADDD_PAT)
+#define scm_caddar(x) scm_i_chase_pairs ((x), SCM_I_ADDA_PAT)
+#define scm_cadadr(x) scm_i_chase_pairs ((x), SCM_I_ADAD_PAT)
+#define scm_cadaar(x) scm_i_chase_pairs ((x), SCM_I_ADAA_PAT)
+#define scm_caaddr(x) scm_i_chase_pairs ((x), SCM_I_AADD_PAT)
+#define scm_caadar(x) scm_i_chase_pairs ((x), SCM_I_AADA_PAT)
+#define scm_caaadr(x) scm_i_chase_pairs ((x), SCM_I_AAAD_PAT)
+#define scm_caaaar(x) scm_i_chase_pairs ((x), SCM_I_AAAA_PAT)
+
SCM_API void scm_init_pairs (void);
#endif /* SCM_PAIRS_H */
HCoop / bpt / guile.git / blobdiff