1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
#ifndef SCM_PRINT_H
#define SCM_PRINT_H
/* Copyright 1995-1996,1998,2000-2001,2003-2004,2006,2008,2010,2012,2017-2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile 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 3 of the License, or
(at your option) any later version.
Guile 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Guile. If not, see
<https://www.gnu.org/licenses/>. */
#include "libguile/chars.h"
#include <libguile/error.h>
#include <libguile/gc.h>
#include "libguile/options.h"
/* State information passed around during printing.
*/
#define SCM_PRINT_STATE_P(obj) (SCM_STRUCTP(obj) \
&& (scm_is_eq (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_PORT_WITH_PS_P(p) SCM_TYP16_PREDICATE (scm_tc16_port_with_ps, p)
#define SCM_PORT_WITH_PS_PORT(p) SCM_CELL_OBJECT_1 (p)
#define SCM_PORT_WITH_PS_PS(p) SCM_CELL_OBJECT_2 (p)
#define SCM_COERCE_OUTPORT(p) \
(SCM_PORT_WITH_PS_P (p) ? SCM_PORT_WITH_PS_PORT (p) : p)
#define SCM_VALIDATE_OPORT_VALUE(pos, port) \
do { \
SCM_ASSERT (scm_valid_oport_value_p (port), port, pos, FUNC_NAME); \
} while (0)
#define SCM_VALIDATE_PRINTSTATE(pos, a) \
SCM_MAKE_VALIDATE_MSG(pos, a, PRINT_STATE_P, "print-state")
#define SCM_PRINT_STATE_LAYOUT "pwuwuwuwuwuwpwuwuwuwpwpw"
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 length; /* Max number of objects per level */
SCM hot_ref; /* Hot reference */
unsigned long list_offset;
unsigned long top; /* Top of reference stack */
unsigned long ceiling; /* Max size of reference stack */
SCM ref_vect; /* Stack of references used during
circular reference detection;
a vector. */
SCM highlight_objects; /* List of objects to be highlighted */
} scm_print_state;
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_INTERNAL SCM scm_i_port_with_print_state (SCM port, SCM print_state);
SCM_API void scm_intprint (intmax_t n, int radix, SCM port);
SCM_API void scm_uintprint (uintmax_t 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_INTERNAL void scm_init_print (void);
#ifdef GUILE_DEBUG
SCM_API SCM scm_current_pstate (void);
#endif
#endif /* SCM_PRINT_H */
|
