1 /**************************************************************************** 2 * Copyright (c) 1998-2000 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 /* 35 * $Id: tic.h,v 1.38 2001/03/11 15:12:08 tom Exp $ 36 * tic.h - Global variables and structures for the terminfo 37 * compiler. 38 */ 39 40 #ifndef __TIC_H 41 #define __TIC_H 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 #include <curses.h> /* for the _tracef() prototype, ERR/OK, bool defs */ 48 49 /* 50 ** The format of compiled terminfo files is as follows: 51 ** 52 ** Header (12 bytes), containing information given below 53 ** Names Section, containing the names of the terminal 54 ** Boolean Section, containing the values of all of the 55 ** boolean capabilities 56 ** A null byte may be inserted here to make 57 ** sure that the Number Section begins on an 58 ** even word boundary. 59 ** Number Section, containing the values of all of the numeric 60 ** capabilities, each as a short integer 61 ** String Section, containing short integer offsets into the 62 ** String Table, one per string capability 63 ** String Table, containing the actual characters of the string 64 ** capabilities. 65 ** 66 ** NOTE that all short integers in the file are stored using VAX/PDP-style 67 ** byte-order, i.e., least-significant byte first. 68 ** 69 ** There is no structure definition here because it would only confuse 70 ** matters. Terminfo format is a raw byte layout, not a structure 71 ** dump. If you happen to be on a little-endian machine with 16-bit 72 ** shorts that requires no padding between short members in a struct, 73 ** then there is a natural C structure that captures the header, but 74 ** not very helpfully. 75 */ 76 77 #define MAGIC 0432 /* first two bytes of a compiled entry */ 78 79 /* 80 * The "maximum" here is misleading; XSI guarantees minimum values, which a 81 * given implementation may exceed. 82 */ 83 #define MAX_NAME_SIZE 512 /* maximum legal name field size (XSI:127) */ 84 #define MAX_ENTRY_SIZE 4096 /* maximum legal entry size */ 85 86 /* The maximum size of individual name or alias is guaranteed in XSI to 87 * be 14, since that corresponds to the older filename lengths. Newer 88 * systems allow longer aliases, though not many terminal descriptions 89 * are written to use them. 90 */ 91 #if HAVE_LONG_FILE_NAMES 92 #define MAX_ALIAS 32 /* POSIX minimum for PATH_MAX */ 93 #else 94 #define MAX_ALIAS 14 /* SVr3 filename length */ 95 #endif 96 97 /* location of user's personal info directory */ 98 #define PRIVATE_INFO "%s/.terminfo" /* plug getenv("HOME") into %s */ 99 100 /* 101 * Some traces are designed to be used via tic's verbose option (and similar in 102 * infocmp and toe) rather than the 'trace()' function. So we use the bits 103 * above the normal trace() parameter as a debug-level. 104 */ 105 106 #define MAX_DEBUG_LEVEL 15 107 #define DEBUG_LEVEL(n) ((n) << 12) /* see TRACE_MAXIMUM */ 108 109 #define set_trace_level(n) \ 110 _nc_tracing &= DEBUG_LEVEL(MAX_DEBUG_LEVEL), \ 111 _nc_tracing |= DEBUG_LEVEL(n) 112 113 #ifdef TRACE 114 #define DEBUG(n, a) if (_nc_tracing >= DEBUG_LEVEL(n)) _tracef a 115 #else 116 #define DEBUG(n, a) /*nothing*/ 117 #endif 118 119 extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing; 120 extern NCURSES_EXPORT(void) _nc_tracef (char *, ...) GCC_PRINTFLIKE(1,2); 121 extern NCURSES_EXPORT(const char *) _nc_visbuf (const char *); 122 123 /* 124 * These are the types of tokens returned by the scanner. The first 125 * three are also used in the hash table of capability names. The scanner 126 * returns one of these values after loading the specifics into the global 127 * structure curr_token. 128 */ 129 130 #define BOOLEAN 0 /* Boolean capability */ 131 #define NUMBER 1 /* Numeric capability */ 132 #define STRING 2 /* String-valued capability */ 133 #define CANCEL 3 /* Capability to be cancelled in following tc's */ 134 #define NAMES 4 /* The names for a terminal type */ 135 #define UNDEF 5 /* Undefined */ 136 137 #define NO_PUSHBACK -1 /* used in pushtype to indicate no pushback */ 138 139 /* 140 * The global structure in which the specific parts of a 141 * scanned token are returned. 142 * 143 */ 144 145 struct token 146 { 147 char *tk_name; /* name of capability */ 148 int tk_valnumber; /* value of capability (if a number) */ 149 char *tk_valstring; /* value of capability (if a string) */ 150 }; 151 152 extern NCURSES_EXPORT_VAR(struct token) _nc_curr_token; 153 154 /* 155 * List of keynames with their corresponding code. 156 */ 157 struct kn { 158 const char *name; 159 int code; 160 }; 161 162 extern NCURSES_EXPORT_VAR(const struct kn) _nc_key_names[]; 163 164 /* 165 * Offsets to string capabilities, with the corresponding functionkey 166 * codes. 167 */ 168 struct tinfo_fkeys { 169 unsigned offset; 170 chtype code; 171 }; 172 173 #if BROKEN_LINKER 174 175 #define _nc_tinfo_fkeys _nc_tinfo_fkeysf() 176 extern NCURSES_EXPORT(struct tinfo_fkeys *) _nc_tinfo_fkeysf (void); 177 178 #else 179 180 extern NCURSES_EXPORT_VAR(struct tinfo_fkeys) _nc_tinfo_fkeys[]; 181 182 #endif 183 184 /* 185 * The file comp_captab.c contains an array of these structures, one 186 * per possible capability. These are indexed by a hash table array of 187 * pointers to the same structures for use by the parser. 188 */ 189 190 struct name_table_entry 191 { 192 const char *nte_name; /* name to hash on */ 193 int nte_type; /* BOOLEAN, NUMBER or STRING */ 194 short nte_index; /* index of associated variable in its array */ 195 short nte_link; /* index in table of next hash, or -1 */ 196 }; 197 198 struct alias 199 { 200 const char *from; 201 const char *to; 202 const char *source; 203 }; 204 205 extern NCURSES_EXPORT_VAR(int) _nc_tparm_err; 206 207 extern NCURSES_EXPORT_VAR(const struct name_table_entry * const) _nc_info_hash_table[]; 208 extern NCURSES_EXPORT_VAR(const struct name_table_entry * const) _nc_cap_hash_table[]; 209 210 extern NCURSES_EXPORT_VAR(const struct alias) _nc_capalias_table[]; 211 extern NCURSES_EXPORT_VAR(const struct alias) _nc_infoalias_table[]; 212 213 extern NCURSES_EXPORT(const struct name_table_entry *) _nc_get_table (bool); 214 extern NCURSES_EXPORT(const struct name_table_entry * const *) _nc_get_hash_table (bool); 215 216 #define NOTFOUND ((struct name_table_entry *) 0) 217 218 /* out-of-band values for representing absent capabilities */ 219 #define ABSENT_BOOLEAN -1 220 #define ABSENT_NUMERIC -1 221 #define ABSENT_STRING (char *)0 222 223 /* out-of-band values for representing cancels */ 224 #define CANCELLED_BOOLEAN (char)(-2) 225 #define CANCELLED_NUMERIC -2 226 #define CANCELLED_STRING (char *)-1 227 228 #define VALID_BOOLEAN(s) ((s) >= 0) 229 #define VALID_NUMERIC(s) ((s) >= 0) 230 #define VALID_STRING(s) ((s) != CANCELLED_STRING && (s) != ABSENT_STRING) 231 232 /* termcap entries longer than this may break old binaries */ 233 #define MAX_TERMCAP_LENGTH 1023 234 235 /* this is a documented limitation of terminfo */ 236 #define MAX_TERMINFO_LENGTH 4096 237 238 #ifndef TERMINFO 239 #define TERMINFO "/usr/share/terminfo" 240 #endif 241 242 /* access.c */ 243 extern NCURSES_EXPORT(char *) _nc_basename (char *); 244 245 /* comp_hash.c: name lookup */ 246 extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_entry 247 (const char *, const struct name_table_entry *const *); 248 extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_type_entry 249 (const char *, int, const struct name_table_entry *); 250 251 /* comp_scan.c: lexical analysis */ 252 extern NCURSES_EXPORT(int) _nc_get_token (bool); 253 extern NCURSES_EXPORT(void) _nc_panic_mode (char); 254 extern NCURSES_EXPORT(void) _nc_push_token (int); 255 extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *); 256 extern NCURSES_EXPORT_VAR(int) _nc_curr_col; 257 extern NCURSES_EXPORT_VAR(int) _nc_curr_line; 258 extern NCURSES_EXPORT_VAR(int) _nc_syntax; 259 extern NCURSES_EXPORT_VAR(long) _nc_comment_end; 260 extern NCURSES_EXPORT_VAR(long) _nc_comment_start; 261 extern NCURSES_EXPORT_VAR(long) _nc_curr_file_pos; 262 extern NCURSES_EXPORT_VAR(long) _nc_start_line; 263 #define SYN_TERMINFO 0 264 #define SYN_TERMCAP 1 265 266 /* comp_error.c: warning & abort messages */ 267 extern NCURSES_EXPORT(void) _nc_set_source (const char *const name); 268 extern NCURSES_EXPORT(void) _nc_get_type (char *name); 269 extern NCURSES_EXPORT(void) _nc_set_type (const char *const name); 270 extern NCURSES_EXPORT(void) _nc_syserr_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN; 271 extern NCURSES_EXPORT(void) _nc_err_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN; 272 extern NCURSES_EXPORT(void) _nc_warning (const char *const,...) GCC_PRINTFLIKE(1,2); 273 extern NCURSES_EXPORT_VAR(bool) _nc_suppress_warnings; 274 275 /* comp_expand.c: expand string into readable form */ 276 extern NCURSES_EXPORT(char *) _nc_tic_expand (const char *, bool, int); 277 278 /* comp_scan.c: decode string from readable form */ 279 extern NCURSES_EXPORT(char) _nc_trans_string (char *, char *); 280 281 /* captoinfo.c: capability conversion */ 282 extern NCURSES_EXPORT(char *) _nc_captoinfo (const char *, const char *, int const); 283 extern NCURSES_EXPORT(char *) _nc_infotocap (const char *, const char *, int const); 284 285 /* lib_tputs.c */ 286 extern NCURSES_EXPORT_VAR(int) _nc_nulls_sent; /* Add one for every null sent */ 287 288 /* comp_main.c: compiler main */ 289 extern const char * _nc_progname; 290 291 /* read_entry.c */ 292 extern NCURSES_EXPORT(const char *) _nc_tic_dir (const char *); 293 294 /* write_entry.c */ 295 extern NCURSES_EXPORT(int) _nc_tic_written (void); 296 297 #ifdef __cplusplus 298 } 299 #endif 300 301 #endif /* __TIC_H */ 302