/****************************************************************************
* Copyright (c) 1998-2015,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/

/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Thomas E. Dickey 1998-on *
****************************************************************************/

/* $Id: term_entry.h,v 1.55 2017/04/06 22:45:34 tom Exp $ */

/*
* term_entry.h -- interface to entry-manipulation code
*/

#ifndef NCURSES_TERM_ENTRY_H_incl
#define NCURSES_TERM_ENTRY_H_incl 1
/* *INDENT-OFF* */

#ifdef __cplusplus
extern "C" {
#endif

#include <term.h>

/*
* These macros may be used by programs that know about TERMTYPE:
*/
#if NCURSES_XNAMES
#define NUM_BOOLEANS(tp) (tp)->num_Booleans
#define NUM_NUMBERS(tp) (tp)->num_Numbers
#define NUM_STRINGS(tp) (tp)->num_Strings
#define EXT_NAMES(tp,i,limit,index,table) (i >= limit) ? tp->ext_Names[index] : table[i]
#else
#define NUM_BOOLEANS(tp) BOOLCOUNT
#define NUM_NUMBERS(tp) NUMCOUNT
#define NUM_STRINGS(tp) STRCOUNT
#define EXT_NAMES(tp,i,limit,index,table) table[i]
#endif

#define NUM_EXT_NAMES(tp) (unsigned) ((tp)->ext_Booleans + (tp)->ext_Numbers + (tp)->ext_Strings)

#define for_each_boolean(n,tp) for(n = 0; n < NUM_BOOLEANS(tp); n++)
#define for_each_number(n,tp) for(n = 0; n < NUM_NUMBERS(tp); n++)
#define for_each_string(n,tp) for(n = 0; n < NUM_STRINGS(tp); n++)

#if NCURSES_XNAMES
#define for_each_ext_boolean(n,tp) for(n = BOOLCOUNT; (int) n < (int) NUM_BOOLEANS(tp); n++)
#define for_each_ext_number(n,tp) for(n = NUMCOUNT; (int) n < (int) NUM_NUMBERS(tp); n++)
#define for_each_ext_string(n,tp) for(n = STRCOUNT; (int) n < (int) NUM_STRINGS(tp); n++)
#endif

#define ExtBoolname(tp,i,names) EXT_NAMES(tp, i, BOOLCOUNT, (i - (tp->num_Booleans - tp->ext_Booleans)), names)
#define ExtNumname(tp,i,names) EXT_NAMES(tp, i, NUMCOUNT, (i - (tp->num_Numbers - tp->ext_Numbers)) + tp->ext_Booleans, names)
#define ExtStrname(tp,i,names) EXT_NAMES(tp, i, STRCOUNT, (i - (tp->num_Strings - tp->ext_Strings)) + (tp->ext_Numbers + tp->ext_Booleans), names)

/*
* The remaining type-definitions and macros are used only internally by the
* ncurses utilities.
*/
#ifdef NCURSES_INTERNALS

/*
* see db_iterator.c - this enumeration lists the places searched for a
* terminal description and defines the order in which they are searched.
*/
typedef enum {
dbdTIC = 0, /* special, used by tic when writing entry */
#if NCURSES_USE_DATABASE
dbdEnvOnce, /* the $TERMINFO environment variable */
dbdHome, /* $HOME/.terminfo */
dbdEnvList, /* the $TERMINFO_DIRS environment variable */
dbdCfgList, /* the compiled-in TERMINFO_DIRS value */
dbdCfgOnce, /* the compiled-in TERMINFO value */
#endif
#if NCURSES_USE_TERMCAP
dbdEnvOnce2, /* the $TERMCAP environment variable */
dbdEnvList2, /* the $TERMPATH environment variable */
dbdCfgList2, /* the compiled-in TERMPATH */
#endif
dbdLAST
} DBDIRS;

#define MAX_USES 32
#define MAX_CROSSLINKS 16

typedef struct entry ENTRY;

typedef struct {
char *name;
ENTRY *link;
long line;
} ENTRY_USES;

struct entry {
TERMTYPE2 tterm;
unsigned nuses;
ENTRY_USES uses[MAX_USES];
int ncrosslinks;
ENTRY *crosslinks[MAX_CROSSLINKS];
long cstart;
long cend;
long startline;
ENTRY *next;
ENTRY *last;
};

extern NCURSES_EXPORT_VAR(ENTRY *) _nc_head;
extern NCURSES_EXPORT_VAR(ENTRY *) _nc_tail;
#define for_entry_list(qp) for (qp = _nc_head; qp; qp = qp->next)

#define MAX_LINE 132

#define NULLHOOK (bool(*)(ENTRY *))0

/*
* Note that WANTED and PRESENT are not simple inverses! If a capability
* has been explicitly cancelled, it's not considered WANTED.
*/
#define WANTED(s) ((s) == ABSENT_STRING)
#define PRESENT(s) (((s) != ABSENT_STRING) && ((s) != CANCELLED_STRING))

#define ANDMISSING(p,q) \
{ \
if (PRESENT(p) && !PRESENT(q)) \
_nc_warning(#p " but no " #q); \
}

#define PAIRED(p,q) \
{ \
if (PRESENT(q) && !PRESENT(p)) \
_nc_warning(#q " but no " #p); \
if (PRESENT(p) && !PRESENT(q)) \
_nc_warning(#p " but no " #q); \
}

/*
* These entrypoints are used only by the ncurses utilities such as tic.
*/

/* alloc_entry.c: elementary allocation code */
extern NCURSES_EXPORT(ENTRY *) _nc_copy_entry (ENTRY *oldp);
extern NCURSES_EXPORT(char *) _nc_save_str (const char *const);
extern NCURSES_EXPORT(void) _nc_init_entry (ENTRY *const);
extern NCURSES_EXPORT(void) _nc_merge_entry (ENTRY *const, ENTRY *const);
extern NCURSES_EXPORT(void) _nc_wrap_entry (ENTRY *const, bool);

/* alloc_ttype.c: elementary allocation code */
extern NCURSES_EXPORT(void) _nc_align_termtype (TERMTYPE2 *, TERMTYPE2 *);

/* free_ttype.c: elementary allocation code */
extern NCURSES_EXPORT(void) _nc_free_termtype2 (TERMTYPE2 *);

/* lib_termcap.c: trim sgr0 string for termcap users */
extern NCURSES_EXPORT(char *) _nc_trim_sgr0 (TERMTYPE2 *);

/* parse_entry.c: entry-parsing code */
#if NCURSES_XNAMES
extern NCURSES_EXPORT_VAR(bool) _nc_user_definable;
extern NCURSES_EXPORT_VAR(bool) _nc_disable_period;
#endif
extern NCURSES_EXPORT(int) _nc_parse_entry (ENTRY *, int, bool);
extern NCURSES_EXPORT(int) _nc_capcmp (const char *, const char *);

/* write_entry.c: writing an entry to the file system */
extern NCURSES_EXPORT(void) _nc_set_writedir (const char *);
extern NCURSES_EXPORT(void) _nc_write_entry (TERMTYPE2 *const);
extern NCURSES_EXPORT(int) _nc_write_object (TERMTYPE2 *, char *, unsigned *, unsigned);

/* comp_parse.c: entry list handling */
extern NCURSES_EXPORT(void) _nc_read_entry_source (FILE*, char*, int, bool, bool (*)(ENTRY*));
extern NCURSES_EXPORT(bool) _nc_entry_match (char *, char *);
extern NCURSES_EXPORT(int) _nc_resolve_uses (bool); /* obs 20040705 */
extern NCURSES_EXPORT(int) _nc_resolve_uses2 (bool, bool);
extern NCURSES_EXPORT(void) _nc_free_entries (ENTRY *);
extern NCURSES_IMPEXP void NCURSES_API (*_nc_check_termtype)(TERMTYPE *); /* obs 20040705 */
extern NCURSES_IMPEXP void NCURSES_API (*_nc_check_termtype2)(TERMTYPE2 *, bool);

/* trace_xnames.c */
extern NCURSES_EXPORT(void) _nc_trace_xnames (TERMTYPE *);

#endif /* NCURSES_INTERNALS */

/*
* These entrypoints are used by tack.
*/

/* alloc_ttype.c: elementary allocation code */
extern NCURSES_EXPORT(void) _nc_copy_termtype (TERMTYPE *, const TERMTYPE *);

/* lib_acs.c */
extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */

/* free_ttype.c: elementary allocation code */
extern NCURSES_EXPORT(void) _nc_free_termtype (TERMTYPE *);

#ifdef __cplusplus
}
#endif

/* *INDENT-ON* */

#endif /* NCURSES_TERM_ENTRY_H_incl */