| | 1 | /* classes: h_files */ |
| | 2 | |
| | 3 | #ifndef SCM_PRINT_H |
| | 4 | #define SCM_PRINT_H |
| | 5 | |
| | 6 | /* Copyright (C) 1995, 1996, 1998, 2000, 2001, 2003, 2004, 2006, 2008, |
| | 7 | * 2010, 2012 Free Software Foundation, Inc. |
| | 8 | * |
| | 9 | * This library is free software; you can redistribute it and/or |
| | 10 | * modify it under the terms of the GNU Lesser General Public License |
| | 11 | * as published by the Free Software Foundation; either version 3 of |
| | 12 | * the License, or (at your option) any later version. |
| | 13 | * |
| | 14 | * This library is distributed in the hope that it will be useful, but |
| | 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 17 | * Lesser General Public License for more details. |
| | 18 | * |
| | 19 | * You should have received a copy of the GNU Lesser General Public |
| | 20 | * License along with this library; if not, write to the Free Software |
| | 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| | 22 | * 02110-1301 USA |
| | 23 | */ |
| | 24 | |
| | 25 | \f |
| | 26 | |
| | 27 | #include "libguile/__scm.h" |
| | 28 | |
| | 29 | #include "libguile/chars.h" |
| | 30 | #include "libguile/options.h" |
| | 31 | \f |
| | 32 | |
| | 33 | /* State information passed around during printing. |
| | 34 | */ |
| | 35 | #define SCM_PRINT_STATE_P(obj) (SCM_STRUCTP(obj) \ |
| | 36 | && (scm_is_eq (SCM_STRUCT_VTABLE(obj), \ |
| | 37 | scm_print_state_vtable))) |
| | 38 | #define SCM_PRINT_STATE(obj) ((scm_print_state *) SCM_STRUCT_DATA (obj)) |
| | 39 | |
| | 40 | #define RESET_PRINT_STATE(pstate) \ |
| | 41 | do { \ |
| | 42 | pstate->list_offset = 0; \ |
| | 43 | pstate->top = 0; \ |
| | 44 | } while (0) |
| | 45 | |
| | 46 | #define SCM_WRITINGP(pstate) ((pstate)->writingp) |
| | 47 | #define SCM_SET_WRITINGP(pstate, x) { (pstate)->writingp = (x); } |
| | 48 | |
| | 49 | #define SCM_PORT_WITH_PS_P(p) SCM_TYP16_PREDICATE (scm_tc16_port_with_ps, p) |
| | 50 | #define SCM_PORT_WITH_PS_PORT(p) SCM_CAR (SCM_CELL_OBJECT_1 (p)) |
| | 51 | #define SCM_PORT_WITH_PS_PS(p) SCM_CDR (SCM_CELL_OBJECT_1 (p)) |
| | 52 | |
| | 53 | #define SCM_COERCE_OUTPORT(p) \ |
| | 54 | (SCM_PORT_WITH_PS_P (p) ? SCM_PORT_WITH_PS_PORT (p) : p) |
| | 55 | |
| | 56 | #define SCM_PRINT_STATE_LAYOUT "sruwuwuwuwuwpwuwuwurprpw" |
| | 57 | typedef struct scm_print_state { |
| | 58 | SCM handle; /* Struct handle */ |
| | 59 | int revealed; /* Has the state escaped to Scheme? */ |
| | 60 | unsigned long writingp; /* Writing? */ |
| | 61 | unsigned long fancyp; /* Fancy printing? */ |
| | 62 | unsigned long level; /* Max level */ |
| | 63 | unsigned long length; /* Max number of objects per level */ |
| | 64 | SCM hot_ref; /* Hot reference */ |
| | 65 | unsigned long list_offset; |
| | 66 | unsigned long top; /* Top of reference stack */ |
| | 67 | unsigned long ceiling; /* Max size of reference stack */ |
| | 68 | SCM ref_vect; /* Stack of references used during |
| | 69 | circular reference detection; |
| | 70 | a simple vector. */ |
| | 71 | SCM highlight_objects; /* List of objects to be highlighted */ |
| | 72 | } scm_print_state; |
| | 73 | |
| | 74 | SCM_API SCM scm_print_state_vtable; |
| | 75 | |
| | 76 | SCM_API scm_t_bits scm_tc16_port_with_ps; |
| | 77 | |
| | 78 | SCM_API SCM scm_print_options (SCM setting); |
| | 79 | SCM_API SCM scm_make_print_state (void); |
| | 80 | SCM_API void scm_free_print_state (SCM print_state); |
| | 81 | SCM_INTERNAL SCM scm_i_port_with_print_state (SCM port, SCM print_state); |
| | 82 | SCM_INTERNAL void scm_i_display_substring (SCM str, size_t start, size_t end, |
| | 83 | SCM port); |
| | 84 | SCM_API void scm_intprint (scm_t_intmax n, int radix, SCM port); |
| | 85 | SCM_API void scm_uintprint (scm_t_uintmax n, int radix, SCM port); |
| | 86 | SCM_API void scm_ipruk (char *hdr, SCM ptr, SCM port); |
| | 87 | SCM_API void scm_iprlist (char *hdr, SCM exp, int tlr, SCM port, scm_print_state *pstate); |
| | 88 | SCM_API void scm_print_symbol_name (const char *str, size_t len, SCM port); |
| | 89 | SCM_API void scm_prin1 (SCM exp, SCM port, int writingp); |
| | 90 | SCM_API void scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate); |
| | 91 | SCM_API SCM scm_write (SCM obj, SCM port); |
| | 92 | SCM_API SCM scm_display (SCM obj, SCM port); |
| | 93 | SCM_API SCM scm_simple_format (SCM port, SCM message, SCM args); |
| | 94 | SCM_API SCM scm_newline (SCM port); |
| | 95 | SCM_API SCM scm_write_char (SCM chr, SCM port); |
| | 96 | SCM_API SCM scm_printer_apply (SCM proc, SCM exp, SCM port, scm_print_state *); |
| | 97 | SCM_API SCM scm_port_with_print_state (SCM port, SCM pstate); |
| | 98 | SCM_API SCM scm_get_print_state (SCM port); |
| | 99 | SCM_API int scm_valid_oport_value_p (SCM val); |
| | 100 | SCM_INTERNAL void scm_init_print (void); |
| | 101 | |
| | 102 | #ifdef GUILE_DEBUG |
| | 103 | SCM_API SCM scm_current_pstate (void); |
| | 104 | #endif |
| | 105 | |
| | 106 | #endif /* SCM_PRINT_H */ |
| | 107 | |
| | 108 | /* |
| | 109 | Local Variables: |
| | 110 | c-file-style: "gnu" |
| | 111 | End: |
| | 112 | */ |
HCoop / bpt / guile.git / blame_incremental