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 Free Software Foundation, Inc. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23 24 25 #include "libguile/__scm.h" 26 27 #include "libguile/options.h" 28 29 SCM_API scm_t_option scm_print_opts[]; 30 31 #define SCM_PRINT_CLOSURE (SCM_PACK (scm_print_opts[0].val)) 32 #define SCM_PRINT_SOURCE_P ((int) scm_print_opts[1].val) 33 #define SCM_PRINT_HIGHLIGHT_PREFIX (SCM_PACK (scm_print_opts[2].val)) 34 #define SCM_PRINT_HIGHLIGHT_SUFFIX (SCM_PACK (scm_print_opts[3].val)) 35 #define SCM_PRINT_KEYWORD_STYLE_I 4 36 #define SCM_PRINT_KEYWORD_STYLE (SCM_PACK (scm_print_opts[4].val)) 37 #define SCM_N_PRINT_OPTIONS 5 38 39 /* State information passed around during printing. 40 */ 41 #define SCM_PRINT_STATE_P(obj) (SCM_STRUCTP(obj) \ 42 && (scm_is_eq (SCM_STRUCT_VTABLE(obj), \ 43 scm_print_state_vtable))) 44 #define SCM_PRINT_STATE(obj) ((scm_print_state *) SCM_STRUCT_DATA (obj)) 45 46 #define RESET_PRINT_STATE(pstate) \ 47 do { \ 48 pstate->list_offset = 0; \ 49 pstate->top = 0; \ 50 } while (0) 51 52 #define SCM_WRITINGP(pstate) ((pstate)->writingp) 53 #define SCM_SET_WRITINGP(pstate, x) { (pstate)->writingp = (x); } 54 55 #define SCM_PORT_WITH_PS_P(p) SCM_TYP16_PREDICATE (scm_tc16_port_with_ps, p) 56 #define SCM_PORT_WITH_PS_PORT(p) SCM_CAR (SCM_CELL_OBJECT_1 (p)) 57 #define SCM_PORT_WITH_PS_PS(p) SCM_CDR (SCM_CELL_OBJECT_1 (p)) 58 59 #define SCM_COERCE_OUTPORT(p) \ 60 (SCM_PORT_WITH_PS_P (p) ? SCM_PORT_WITH_PS_PORT (p) : p) 61 62 #define SCM_PRINT_STATE_LAYOUT "sruwuwuwuwuwpwuwuwurprpw" 63 typedef struct scm_print_state { 64 SCM handle; /* Struct handle */ 65 int revealed; /* Has the state escaped to Scheme? */ 66 unsigned long writingp; /* Writing? */ 67 unsigned long fancyp; /* Fancy printing? */ 68 unsigned long level; /* Max level */ 69 unsigned long length; /* Max number of objects per level */ 70 SCM hot_ref; /* Hot reference */ 71 unsigned long list_offset; 72 unsigned long top; /* Top of reference stack */ 73 unsigned long ceiling; /* Max size of reference stack */ 74 SCM ref_vect; /* Stack of references used during 75 circular reference detection; 76 a simple vector. */ 77 SCM highlight_objects; /* List of objects to be highlighted */ 78 } scm_print_state; 79 80 SCM_API SCM scm_print_state_vtable; 81 82 SCM_API scm_t_bits scm_tc16_port_with_ps; 83 84 SCM_API SCM scm_print_options (SCM setting); 85 SCM_API SCM scm_make_print_state (void); 86 SCM_API void scm_free_print_state (SCM print_state); 87 SCM scm_i_port_with_print_state (SCM port, SCM print_state); 88 SCM_API void scm_intprint (scm_t_intmax n, int radix, SCM port); 89 SCM_API void scm_uintprint (scm_t_uintmax n, int radix, SCM port); 90 SCM_API void scm_ipruk (char *hdr, SCM ptr, SCM port); 91 SCM_API void scm_iprlist (char *hdr, SCM exp, int tlr, SCM port, scm_print_state *pstate); 92 SCM_API void scm_print_symbol_name (const char *str, size_t len, SCM port); 93 SCM_API void scm_prin1 (SCM exp, SCM port, int writingp); 94 SCM_API void scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate); 95 SCM_API SCM scm_write (SCM obj, SCM port); 96 SCM_API SCM scm_display (SCM obj, SCM port); 97 SCM_API SCM scm_simple_format (SCM port, SCM message, SCM args); 98 SCM_API SCM scm_newline (SCM port); 99 SCM_API SCM scm_write_char (SCM chr, SCM port); 100 SCM_API SCM scm_printer_apply (SCM proc, SCM exp, SCM port, scm_print_state *); 101 SCM_API SCM scm_port_with_print_state (SCM port, SCM pstate); 102 SCM_API SCM scm_get_print_state (SCM port); 103 SCM_API int scm_valid_oport_value_p (SCM val); 104 SCM_API void scm_init_print (void); 105 106 #ifdef GUILE_DEBUG 107 SCM_API SCM scm_current_pstate (void); 108 #endif 109 110 #endif /* SCM_PRINT_H */ 111 112 /* 113 Local Variables: 114 c-file-style: "gnu" 115 End: 116 */ 117