X-Git-Url: http://git.hcoop.net/bpt/guile.git/blobdiff_plain/bf685b6d20c6cf9e7e49ecc09ab8dbb005a5e4e9..53befeb700c31dec58cec2c8f6f34535541a2f39:/libguile/print.h diff --git a/libguile/print.h b/libguile/print.h dissimilarity index 76% index cb326fb5b..d817a6fc3 100644 --- a/libguile/print.h +++ b/libguile/print.h @@ -1,100 +1,108 @@ -/* classes: h_files */ - -#ifndef PRINTH -#define PRINTH -/* Copyright (C) 1995,1996 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. - * - * 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. - */ - - -#include "libguile/__scm.h" - -#include "libguile/options.h" - -extern scm_option scm_print_opts[]; - -#define SCM_PRINT_CLOSURE ((SCM) 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(obj) ((scm_print_state *) SCM_STRUCT_DATA (obj)) - -#define RESET_PRINT_STATE(pstate) \ -{ \ - pstate->list_offset = 0; \ - pstate->top = 0; \ -} - -#define SCM_WRITINGP(pstate) ((pstate)->writingp) -#define SCM_SET_WRITINGP(pstate, x) { (pstate)->writingp = (x); } - -#define SCM_PRINT_STATE_LAYOUT "sruwuwuwuwpwuwuwuruopr" -typedef struct scm_print_state { - SCM handle; /* Struct handle */ - 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_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 */ +/* classes: h_files */ + +#ifndef SCM_PRINT_H +#define SCM_PRINT_H + +/* Copyright (C) 1995,1996,1998,2000,2001, 2003, 2004, 2006, 2008 Free Software Foundation, Inc. + * + * 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 3 of + * the License, or (at your option) any later version. + * + * 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 + * Lesser General Public License for more details. + * + * 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 + */ + + + +#include "libguile/__scm.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_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 "sruwuwuwuwuwpwuwuwurprpw" +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 simple 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 (scm_t_intmax n, int radix, SCM port); +SCM_API void scm_uintprint (scm_t_uintmax 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 */ + +/* + Local Variables: + c-file-style: "gnu" + End: +*/