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tic.h
/**************************************************************************** * Copyright 2018-2020,2021 Thomas E. Dickey * * Copyright 1998-2012,2017 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 1996 on * ****************************************************************************/ /* * $Id: tic.h,v 1.82 2021/03/20 16:06:15 tom Exp $ * tic.h - Global variables and structures for the terminfo compiler. */ #ifndef __TIC_H #define __TIC_H /* *INDENT-OFF* */ #ifdef __cplusplus extern "C" { #endif #include <ncurses_cfg.h> #include <curses.h> /* for the _tracef() prototype, ERR/OK, bool defs */ /* ** The format of SVr2 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. ** ** In the SVr2 format, "short" means signed 16-bit numbers, which is sometimes ** inconvenient. The numbers are signed, to provide for absent and canceled ** values. ncurses6.1 introduced an extension to this compiled format, by ** making the Number Section a list of signed 32-bit integers. ** ** 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 MAGIC2 01036 /* first two bytes of a compiled 32-bit entry */ #undef BYTE #define BYTE(p,n) (unsigned char)((p)[n]) #define IS_NEG1(p) ((BYTE(p,0) == 0377) && (BYTE(p,1) == 0377)) #define IS_NEG2(p) ((BYTE(p,0) == 0376) && (BYTE(p,1) == 0377)) #define LOW_MSB(p) (BYTE(p,0) + 256*BYTE(p,1)) #define IS_TIC_MAGIC(p) (LOW_MSB(p) == MAGIC || LOW_MSB(p) == MAGIC2) #define quick_prefix(s) (!strncmp((s), "b64:", (size_t)4) || !strncmp((s), "hex:", (size_t)4)) /* * The "maximum" here is misleading; XSI guarantees minimum values, which a * given implementation may exceed. */ #define MAX_NAME_SIZE 512 /* maximum legal name field size (XSI:127) */ #define MAX_ENTRY_SIZE1 4096 /* maximum legal entry size (SVr2) */ #define MAX_ENTRY_SIZE2 32768 /* maximum legal entry size (ncurses6.1) */ #if NCURSES_EXT_COLORS && HAVE_INIT_EXTENDED_COLOR #define MAX_ENTRY_SIZE MAX_ENTRY_SIZE2 #else #define MAX_ENTRY_SIZE MAX_ENTRY_SIZE1 #endif /* * The maximum size of individual name or alias is guaranteed in XSI to be at * least 14, since that corresponds to the older filename lengths. Newer * systems allow longer aliases, though not many terminal descriptions are * written to use them. The MAX_ALIAS symbol is used for warnings. */ #if HAVE_LONG_FILE_NAMES #define MAX_ALIAS 32 /* smaller than POSIX minimum for PATH_MAX */ #else #define MAX_ALIAS 14 /* SVr3 filename length */ #endif /* location of user's personal info directory */ #define PRIVATE_INFO "%s/.terminfo" /* plug getenv("HOME") into %s */ /* * Some traces are designed to be used via tic's verbose option (and similar in * infocmp and toe) rather than the 'trace()' function. So we use the bits * above the normal trace() parameter as a debug-level. */ #define MAX_DEBUG_LEVEL 15 #define DEBUG_LEVEL(n) ((n) << TRACE_SHIFT) #define set_trace_level(n) \ _nc_tracing &= DEBUG_LEVEL(MAX_DEBUG_LEVEL) \ + DEBUG_LEVEL(MAX_DEBUG_LEVEL) - 1, \ _nc_tracing |= DEBUG_LEVEL(n) #ifdef TRACE #define DEBUG(n, a) if (_nc_tracing >= DEBUG_LEVEL(n)) _tracef a #else #define DEBUG(n, a) /*nothing*/ #endif /* * 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) */ }; /* * Offsets to string capabilities, with the corresponding functionkey codes. */ struct tinfo_fkeys { unsigned offset; chtype code; }; typedef short HashValue; /* * 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 { const char *nte_name; /* name to hash on */ int nte_type; /* BOOLEAN, NUMBER or STRING */ HashValue nte_index; /* index of associated variable in its array */ HashValue nte_link; /* index in table of next hash, or -1 */ }; /* * Use this structure to hide differences between terminfo and termcap tables. */ typedef struct { unsigned table_size; const HashValue *table_data; HashValue (*hash_of)(const char *); int (*compare_names)(const char *, const char *); } HashData; struct alias { const char *from; const char *to; const char *source; }; #define NOTFOUND ((struct name_table_entry *) 0) /* * The file comp_userdefs.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 user_table_entry { const char *ute_name; /* name to hash on */ int ute_type; /* mask (BOOLEAN, NUMBER, STRING) */ unsigned ute_argc; /* number of parameters */ unsigned ute_args; /* bit-mask for string parameters */ HashValue ute_index; /* index of associated variable in its array */ HashValue ute_link; /* index in table of next hash, or -1 */ }; /* * The casts are required for correct sign-propagation with systems such as * AIX, IRIX64, Solaris which default to unsigned characters. The C standard * leaves this detail unspecified. */ /* out-of-band values for representing absent capabilities */ #define ABSENT_BOOLEAN ((signed char)-1) /* 255 */ #define ABSENT_NUMERIC (-1) #define ABSENT_STRING (char *)0 /* out-of-band values for representing cancels */ #define CANCELLED_BOOLEAN ((signed char)-2) /* 254 */ #define CANCELLED_NUMERIC (-2) #define CANCELLED_STRING (char *)(-1) #define VALID_BOOLEAN(s) ((unsigned char)(s) <= 1) /* reject "-1" */ #define VALID_NUMERIC(s) ((s) >= 0) #define VALID_STRING(s) ((s) != CANCELLED_STRING && (s) != ABSENT_STRING) /* 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 #ifndef TERMINFO #define TERMINFO "/usr/share/terminfo" #endif #ifdef NCURSES_TERM_ENTRY_H_incl /* * These entrypoints are used only by the ncurses utilities such as tic. */ #ifdef NCURSES_INTERNALS /* access.c */ extern NCURSES_EXPORT(unsigned) _nc_pathlast (const char *); extern NCURSES_EXPORT(bool) _nc_is_abs_path (const char *); extern NCURSES_EXPORT(bool) _nc_is_dir_path (const char *); extern NCURSES_EXPORT(bool) _nc_is_file_path (const char *); extern NCURSES_EXPORT(char *) _nc_basename (char *); extern NCURSES_EXPORT(char *) _nc_rootname (char *); /* comp_captab.c */ extern NCURSES_EXPORT(const struct name_table_entry *) _nc_get_table (bool); extern NCURSES_EXPORT(const HashData *) _nc_get_hash_info (bool); extern NCURSES_EXPORT(const struct alias *) _nc_get_alias_table (bool); /* comp_hash.c: name lookup */ extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_type_entry (const char *, int, bool); extern NCURSES_EXPORT(struct user_table_entry const *) _nc_find_user_entry (const char *); /* comp_scan.c: lexical analysis */ extern NCURSES_EXPORT(int) _nc_get_token (bool); extern NCURSES_EXPORT(void) _nc_panic_mode (char); extern NCURSES_EXPORT(void) _nc_push_token (int); extern NCURSES_EXPORT_VAR(int) _nc_curr_col; extern NCURSES_EXPORT_VAR(int) _nc_curr_line; extern NCURSES_EXPORT_VAR(int) _nc_syntax; extern NCURSES_EXPORT_VAR(int) _nc_strict_bsd; extern NCURSES_EXPORT_VAR(long) _nc_comment_end; extern NCURSES_EXPORT_VAR(long) _nc_comment_start; extern NCURSES_EXPORT_VAR(long) _nc_curr_file_pos; extern NCURSES_EXPORT_VAR(long) _nc_start_line; #define SYN_TERMINFO 0 #define SYN_TERMCAP 1 /* comp_error.c: warning & abort messages */ extern NCURSES_EXPORT(const char *) _nc_get_source (void); extern GCC_NORETURN NCURSES_EXPORT(void) _nc_err_abort (const char *const,...) GCC_PRINTFLIKE(1,2); extern NCURSES_EXPORT(void) _nc_get_type (char *name); extern NCURSES_EXPORT(void) _nc_set_source (const char *const); extern NCURSES_EXPORT(void) _nc_set_type (const char *const); extern GCC_NORETURN NCURSES_EXPORT(void) _nc_syserr_abort (const char *const,...) GCC_PRINTFLIKE(1,2); extern NCURSES_EXPORT(void) _nc_warning (const char *const,...) GCC_PRINTFLIKE(1,2); extern NCURSES_EXPORT_VAR(bool) _nc_suppress_warnings; /* comp_scan.c */ extern NCURSES_EXPORT_VAR(struct token) _nc_curr_token; /* comp_userdefs.c */ NCURSES_EXPORT(const struct user_table_entry *) _nc_get_userdefs_table (void); NCURSES_EXPORT(const HashData *) _nc_get_hash_user (void); /* captoinfo.c: capability conversion */ extern NCURSES_EXPORT(char *) _nc_captoinfo (const char *, const char *, int const); extern NCURSES_EXPORT(char *) _nc_infotocap (const char *, const char *, int const); /* home_terminfo.c */ extern NCURSES_EXPORT(char *) _nc_home_terminfo (void); /* init_keytry.c */ #if BROKEN_LINKER #define _nc_tinfo_fkeys _nc_tinfo_fkeysf() extern NCURSES_EXPORT(const struct tinfo_fkeys *) _nc_tinfo_fkeysf (void); #else extern NCURSES_EXPORT_VAR(const struct tinfo_fkeys) _nc_tinfo_fkeys[]; #endif /* lib_tparm.c */ #define NUM_PARM 9 extern NCURSES_EXPORT_VAR(int) _nc_tparm_err; extern NCURSES_EXPORT(int) _nc_tparm_analyze(const char *, char **, int *); /* lib_trace.c */ extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; extern NCURSES_EXPORT(const char *) _nc_visbuf (const char *); extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *); /* lib_tputs.c */ extern NCURSES_EXPORT_VAR(int) _nc_nulls_sent; /* Add one for every null sent */ /* comp_main.c: compiler main */ extern const char * _nc_progname; /* db_iterator.c */ extern NCURSES_EXPORT(const char *) _nc_next_db(DBDIRS *, int *); extern NCURSES_EXPORT(const char *) _nc_tic_dir (const char *); extern NCURSES_EXPORT(void) _nc_first_db(DBDIRS *, int *); extern NCURSES_EXPORT(void) _nc_last_db(void); /* write_entry.c */ extern NCURSES_EXPORT(int) _nc_tic_written (void); #endif /* NCURSES_INTERNALS */ /* * These entrypoints were used by tack before 1.08. */ #undef NCURSES_TACK_1_08 #ifdef NCURSES_INTERNALS #define NCURSES_TACK_1_08 /* nothing */ #else #define NCURSES_TACK_1_08 GCC_DEPRECATED("upgrade to tack 1.08") #endif /* comp_hash.c: name lookup */ extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_entry (const char *, const HashValue *) NCURSES_TACK_1_08; extern NCURSES_EXPORT(const HashValue *) _nc_get_hash_table (bool) NCURSES_TACK_1_08; /* comp_scan.c: lexical analysis */ extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *) NCURSES_TACK_1_08; /* comp_expand.c: expand string into readable form */ extern NCURSES_EXPORT(char *) _nc_tic_expand (const char *, bool, int) NCURSES_TACK_1_08; /* comp_scan.c: decode string from readable form */ extern NCURSES_EXPORT(int) _nc_trans_string (char *, char *) NCURSES_TACK_1_08; #endif /* NCURSES_TERM_ENTRY_H_incl */ #ifdef __cplusplus } #endif /* *INDENT-ON* */ #endif /* __TIC_H */
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