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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
* tic.h - Global variables and structures for the terminfo
* compiler.
*
*/
#ifndef __TIC_H
#define __TIC_H
#include <curses.h> /* for the _tracef() prototype, ERR/OK, bool defs */
/*
** The format of compiled terminfo files is as follows:
**
** Header (12 bytes), containing information given below
** Names Section, containing the names of the terminal
** Boolean Section, containing the values of all of the
** boolean capabilities
** A null byte may be inserted here to make
** sure that the Number Section begins on an
** even word boundary.
** Number Section, containing the values of all of the numeric
** capabilities, each as a short integer
** String Section, containing short integer offsets into the
** String Table, one per string capability
** String Table, containing the actual characters of the string
** capabilities.
**
** NOTE that all short integers in the file are stored using VAX/PDP-style
** byte-order, i.e., least-significant byte first.
**
** There is no structure definition here because it would only confuse
** matters. Terminfo format is a raw byte layout, not a structure
** dump. If you happen to be on a little-endian machine with 16-bit
** shorts that requires no padding between short members in a struct,
** then there is a natural C structure that captures the header, but
** not very helpfully.
*/
#define MAGIC 0432 /* first two bytes of a compiled entry */
#define MAX_NAME_SIZE 127 /* maximum legal name field size */
#define MAX_ENTRY_SIZE 4096 /* maximum legal entry size */
#define MAX_ALIAS 14 /* maximum size of individual name or alias */
/* location of user's personal info directory */
#define PRIVATE_INFO "%s/.terminfo" /* plug getenv("HOME") into %s */
#define DEBUG(n, a) if (_nc_tracing & (1 << (n - 1))) _tracef a
extern unsigned _nc_tracing;
extern void _nc_tracef(char *, ...);
extern char *_nc_visbuf(const char *);
/*
* These are the types of tokens returned by the scanner. The first
* three are also used in the hash table of capability names. The scanner
* returns one of these values after loading the specifics into the global
* structure curr_token.
*/
#define BOOLEAN 0 /* Boolean capability */
#define NUMBER 1 /* Numeric capability */
#define STRING 2 /* String-valued capability */
#define CANCEL 3 /* Capability to be cancelled in following tc's */
#define NAMES 4 /* The names for a terminal type */
#define UNDEF 5 /* Undefined */
#define NO_PUSHBACK -1 /* used in pushtype to indicate no pushback */
/*
* The global structure in which the specific parts of a
* scanned token are returned.
*
*/
struct token
{
char *tk_name; /* name of capability */
int tk_valnumber; /* value of capability (if a number) */
char *tk_valstring; /* value of capability (if a string) */
};
extern struct token _nc_curr_token;
/*
* The file comp_captab.c contains an array of these structures, one
* per possible capability. These are indexed by a hash table array of
* pointers to the same structures for use by the parser.
*/
struct name_table_entry
{
char *nte_name; /* name to hash on */
int nte_type; /* BOOLEAN, NUMBER or STRING */
short nte_index; /* index of associated variable in its array */
short nte_link; /* index in table of next hash, or -1 */
};
struct alias
{
char *from;
char *to;
char *source;
};
extern const struct name_table_entry * const _nc_info_hash_table[];
extern const struct name_table_entry * const _nc_cap_hash_table[];
extern const struct alias _nc_capalias_table[];
extern const struct alias _nc_infoalias_table[];
extern const struct name_table_entry *_nc_get_table(bool);
#define NOTFOUND ((struct name_table_entry *) 0)
/* out-of-band values for representing absent capabilities */
#define ABSENT_BOOLEAN -1
#define ABSENT_NUMERIC -1
#define ABSENT_STRING (char *)0
/* out-of-band values for representing cancels */
#define CANCELLED_BOOLEAN (char)(-2)
#define CANCELLED_NUMERIC -2
#define CANCELLED_STRING (char *)-1
/* termcap entries longer than this may break old binaries */
#define MAX_TERMCAP_LENGTH 1023
/* this is a documented limitation of terminfo */
#define MAX_TERMINFO_LENGTH 4096
/* comp_hash.c: name lookup */
struct name_table_entry const *_nc_find_entry(const char *,
const struct name_table_entry *const *);
struct name_table_entry const *_nc_find_type_entry(const char *,
int,
const struct name_table_entry *);
/* comp_scan.c: lexical analysis */
extern int _nc_get_token(void);
extern void _nc_push_token(int);
extern void _nc_reset_input(FILE *, char *);
extern void _nc_panic_mode(char);
extern int _nc_curr_line;
extern int _nc_curr_col;
extern long _nc_curr_file_pos;
extern long _nc_comment_start, _nc_comment_end;
extern int _nc_syntax;
extern long _nc_start_line;
#define SYN_TERMINFO 0
#define SYN_TERMCAP 1
/* comp_error.c: warning & abort messages */
extern void _nc_set_source(const char *const name);
extern void _nc_get_type(char *name);
extern void _nc_set_type(const char *const name);
extern void _nc_syserr_abort(const char *const,...);
extern void _nc_err_abort(const char *const,...);
extern void _nc_warning(const char *const,...);
extern bool _nc_suppress_warnings;
/* captoinfo.c: capability conversion */
extern char *_nc_captoinfo(char *const, char *, int const);
extern char *_nc_infotocap(char *const, char *, int const);
/* comp_main.c: compiler main */
extern char *_nc_progname;
#endif /* __TIC_H */
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