/* classes: h_files */
-#ifndef PRINTH
-#define PRINTH
-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
- *
+#ifndef SCM_PRINT_H
+#define SCM_PRINT_H
+
+/* Copyright (C) 1995,1996,1998,2000,2001 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.
+ * 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.
*
* 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.
- */
+ * If you do not wish that, delete this exception notice. */
+
\f
#include "libguile/__scm.h"
#include "libguile/options.h"
\f
-extern scm_option scm_print_opts[];
+SCM_API scm_t_option scm_print_opts[];
-#define SCM_PRINT_CLOSURE ((SCM) scm_print_opts[0].val)
+#define SCM_PRINT_CLOSURE (SCM_PACK (scm_print_opts[0].val))
#define SCM_PRINT_SOURCE_P ((int) scm_print_opts[1].val)
#define SCM_N_PRINT_OPTIONS 2
/* State information passed around during printing.
*/
+#define SCM_PRINT_STATE_P(obj) (SCM_STRUCTP(obj) \
+ && (SCM_EQ_P (SCM_STRUCT_VTABLE(obj), \
+ scm_print_state_vtable)))
#define SCM_PRINT_STATE(obj) ((scm_print_state *) SCM_STRUCT_DATA (obj))
#define RESET_PRINT_STATE(pstate) \
-{ \
+do { \
pstate->list_offset = 0; \
pstate->top = 0; \
-}
+} while (0)
#define SCM_WRITINGP(pstate) ((pstate)->writingp)
#define SCM_SET_WRITINGP(pstate, x) { (pstate)->writingp = (x); }
-#define SCM_PRINT_STATE_LAYOUT "sruwuwuwuwpwuwuwuwpW"
+#define SCM_PORT_WITH_PS_P(p) SCM_TYP16_PREDICATE (scm_tc16_port_with_ps, p)
+#define SCM_PORT_WITH_PS_PORT(p) SCM_CAR (SCM_CELL_OBJECT_1 (p))
+#define SCM_PORT_WITH_PS_PS(p) SCM_CDR (SCM_CELL_OBJECT_1 (p))
+
+#define SCM_COERCE_OUTPORT(p) \
+ (SCM_PORT_WITH_PS_P (p) ? SCM_PORT_WITH_PS_PORT (p) : p)
+
+#define SCM_PRINT_STATE_LAYOUT "sruwuwuwuwuwpwuwuwuruopr"
typedef struct scm_print_state {
SCM handle; /* Struct handle */
+ int revealed; /* Has the state escaped to Scheme? */
unsigned long writingp; /* Writing? */
unsigned long fancyp; /* Fancy printing? */
unsigned long level; /* Max level */
unsigned long list_offset;
unsigned long top; /* Top of reference stack */
unsigned long ceiling; /* Max size of reference stack */
- unsigned long n_refs; /* Size of struct tail array */
- SCM ref_stack[1]; /* Stack of references used during
+ SCM *ref_stack; /* Stack of references used during
circular reference detection */
+ SCM ref_vect;
} scm_print_state;
-extern SCM scm_print_options SCM_P ((SCM setting));
-SCM scm_make_print_state SCM_P ((void));
-void scm_free_print_state SCM_P ((SCM print_state));
-extern void scm_intprint SCM_P ((long n, int radix, SCM port));
-extern void scm_ipruk SCM_P ((char *hdr, SCM ptr, SCM port));
-extern void scm_iprlist SCM_P ((char *hdr, SCM exp, char tlr, SCM port, scm_print_state *pstate));
-extern void scm_prin1 SCM_P ((SCM exp, SCM port, int writingp));
-extern void scm_iprin1 SCM_P ((SCM exp, SCM port, scm_print_state *pstate));
-extern SCM scm_write SCM_P ((SCM obj, SCM port));
-extern SCM scm_display SCM_P ((SCM obj, SCM port));
-extern SCM scm_newline SCM_P ((SCM port));
-extern SCM scm_write_char SCM_P ((SCM chr, SCM port));
-extern void scm_init_print SCM_P ((void));
-
-#endif /* PRINTH */
+SCM_API SCM scm_print_state_vtable;
+
+SCM_API scm_t_bits scm_tc16_port_with_ps;
+
+SCM_API SCM scm_print_options (SCM setting);
+SCM_API SCM scm_make_print_state (void);
+SCM_API void scm_free_print_state (SCM print_state);
+SCM_API void scm_intprint (long n, int radix, SCM port);
+SCM_API void scm_ipruk (char *hdr, SCM ptr, SCM port);
+SCM_API void scm_iprlist (char *hdr, SCM exp, int tlr, SCM port, scm_print_state *pstate);
+SCM_API void scm_print_symbol_name (const char *str, size_t len, SCM port);
+SCM_API void scm_prin1 (SCM exp, SCM port, int writingp);
+SCM_API void scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate);
+SCM_API SCM scm_write (SCM obj, SCM port);
+SCM_API SCM scm_display (SCM obj, SCM port);
+SCM_API SCM scm_simple_format (SCM port, SCM message, SCM args);
+SCM_API SCM scm_newline (SCM port);
+SCM_API SCM scm_write_char (SCM chr, SCM port);
+SCM_API SCM scm_printer_apply (SCM proc, SCM exp, SCM port, scm_print_state *);
+SCM_API SCM scm_port_with_print_state (SCM port, SCM pstate);
+SCM_API SCM scm_get_print_state (SCM port);
+SCM_API int scm_valid_oport_value_p (SCM val);
+SCM_API void scm_init_print (void);
+
+#ifdef GUILE_DEBUG
+SCM_API SCM scm_current_pstate (void);
+#endif
+
+#endif /* SCM_PRINT_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff