contrib/ncurses-5.4/include/tic.h

   1 /****************************************************************************
   2  * Copyright (c) 1998-2001,2003 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 1.46 2003/12/27 19:05:32 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 /*
  87  * The maximum size of individual name or alias is guaranteed in XSI to be at
  88  * least 14, since that corresponds to the older filename lengths.  Newer
  89  * systems allow longer aliases, though not many terminal descriptions are
  90  * written to use them.  The MAX_ALIAS symbol is used for warnings.
  91  */
  92 #if HAVE_LONG_FILE_NAMES
  93 #define MAX_ALIAS       32      /* smaller than POSIX minimum for PATH_MAX */
  94 #else
  95 #define MAX_ALIAS       14      /* SVr3 filename length */
  96 #endif
  97
  98 /* location of user's personal info directory */
  99 #define PRIVATE_INFO    "%s/.terminfo"  /* plug getenv("HOME") into %s */
 100
 101 /*
 102  * Some traces are designed to be used via tic's verbose option (and similar in
 103  * infocmp and toe) rather than the 'trace()' function.  So we use the bits
 104  * above the normal trace() parameter as a debug-level.
 105  */
 106
 107 #define MAX_DEBUG_LEVEL 15
 108 #define DEBUG_LEVEL(n)  ((n) << TRACE_SHIFT)
 109
 110 #define set_trace_level(n) \
 111         _nc_tracing &= DEBUG_LEVEL(MAX_DEBUG_LEVEL), \
 112         _nc_tracing |= DEBUG_LEVEL(n)
 113
 114 #ifdef TRACE
 115 #define DEBUG(n, a)     if (_nc_tracing >= DEBUG_LEVEL(n)) _tracef a
 116 #else
 117 #define DEBUG(n, a)     /*nothing*/
 118 #endif
 119
 120 extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing;
 121 extern NCURSES_EXPORT(void) _nc_tracef (char *, ...) GCC_PRINTFLIKE(1,2);
 122 extern NCURSES_EXPORT(const char *) _nc_visbuf (const char *);
 123 extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
 124
 125 /*
 126  * These are the types of tokens returned by the scanner.  The first
 127  * three are also used in the hash table of capability names.  The scanner
 128  * returns one of these values after loading the specifics into the global
 129  * structure curr_token.
 130  */
 131
 132 #define BOOLEAN 0               /* Boolean capability */
 133 #define NUMBER 1                /* Numeric capability */
 134 #define STRING 2                /* String-valued capability */
 135 #define CANCEL 3                /* Capability to be cancelled in following tc's */
 136 #define NAMES  4                /* The names for a terminal type */
 137 #define UNDEF  5                /* Undefined */
 138
 139 #define NO_PUSHBACK     -1      /* used in pushtype to indicate no pushback */
 140
 141         /*
 142          *      The global structure in which the specific parts of a
 143          *      scanned token are returned.
 144          *
 145          */
 146
 147 struct token
 148 {
 149         char    *tk_name;               /* name of capability */
 150         int     tk_valnumber;   /* value of capability (if a number) */
 151         char    *tk_valstring;  /* value of capability (if a string) */
 152 };
 153
 154 extern NCURSES_EXPORT_VAR(struct token) _nc_curr_token;
 155
 156         /*
 157          * List of keynames with their corresponding code.
 158          */
 159 struct kn {
 160         const char *name;
 161         int code;
 162 };
 163
 164 extern NCURSES_EXPORT_VAR(const struct kn) _nc_key_names[];
 165
 166         /*
 167          * Offsets to string capabilities, with the corresponding functionkey
 168          * codes.
 169          */
 170 struct tinfo_fkeys {
 171         unsigned offset;
 172         chtype code;
 173         };
 174
 175 #if     BROKEN_LINKER
 176
 177 #define _nc_tinfo_fkeys _nc_tinfo_fkeysf()
 178 extern NCURSES_EXPORT(struct tinfo_fkeys *) _nc_tinfo_fkeysf (void);
 179
 180 #else
 181
 182 extern NCURSES_EXPORT_VAR(struct tinfo_fkeys) _nc_tinfo_fkeys[];
 183
 184 #endif
 185
 186         /*
 187          * The file comp_captab.c contains an array of these structures, one
 188          * per possible capability.  These are indexed by a hash table array of
 189          * pointers to the same structures for use by the parser.
 190          */
 191
 192 struct name_table_entry
 193 {
 194         const char *nte_name;   /* name to hash on */
 195         int     nte_type;       /* BOOLEAN, NUMBER or STRING */
 196         short   nte_index;      /* index of associated variable in its array */
 197         short   nte_link;       /* index in table of next hash, or -1 */
 198 };
 199
 200 struct alias
 201 {
 202         const char      *from;
 203         const char      *to;
 204         const char      *source;
 205 };
 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          (char)(-1)      /* 255 */
 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)      /* 254 */
 225 #define CANCELLED_NUMERIC       (-2)
 226 #define CANCELLED_STRING        (char *)(-1)
 227
 228 #define VALID_BOOLEAN(s) ((unsigned char)(s) <= 1) /* reject "-1" */
 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(unsigned) _nc_pathlast (const char *);
 244 extern NCURSES_EXPORT(char *) _nc_basename (char *);
 245 extern NCURSES_EXPORT(char *) _nc_rootname (char *);
 246
 247 /* comp_hash.c: name lookup */
 248 extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_entry
 249         (const char *, const struct name_table_entry *const *);
 250 extern NCURSES_EXPORT(struct name_table_entry const *) _nc_find_type_entry
 251         (const char *, int, const struct name_table_entry *);
 252
 253 /* comp_scan.c: lexical analysis */
 254 extern NCURSES_EXPORT(int)  _nc_get_token (bool);
 255 extern NCURSES_EXPORT(void) _nc_panic_mode (char);
 256 extern NCURSES_EXPORT(void) _nc_push_token (int);
 257 extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *);
 258 extern NCURSES_EXPORT_VAR(int) _nc_curr_col;
 259 extern NCURSES_EXPORT_VAR(int) _nc_curr_line;
 260 extern NCURSES_EXPORT_VAR(int) _nc_syntax;
 261 extern NCURSES_EXPORT_VAR(long) _nc_comment_end;
 262 extern NCURSES_EXPORT_VAR(long) _nc_comment_start;
 263 extern NCURSES_EXPORT_VAR(long) _nc_curr_file_pos;
 264 extern NCURSES_EXPORT_VAR(long) _nc_start_line;
 265 #define SYN_TERMINFO    0
 266 #define SYN_TERMCAP     1
 267
 268 /* comp_error.c: warning & abort messages */
 269 extern NCURSES_EXPORT(void) _nc_set_source (const char *const name);
 270 extern NCURSES_EXPORT(void) _nc_get_type (char *name);
 271 extern NCURSES_EXPORT(void) _nc_set_type (const char *const name);
 272 extern NCURSES_EXPORT(void) _nc_syserr_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
 273 extern NCURSES_EXPORT(void) _nc_err_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
 274 extern NCURSES_EXPORT(void) _nc_warning (const char *const,...) GCC_PRINTFLIKE(1,2);
 275 extern NCURSES_EXPORT_VAR(bool) _nc_suppress_warnings;
 276
 277 /* comp_expand.c: expand string into readable form */
 278 extern NCURSES_EXPORT(char *) _nc_tic_expand (const char *, bool, int);
 279
 280 /* comp_scan.c: decode string from readable form */
 281 extern NCURSES_EXPORT(char) _nc_trans_string (char *, char *);
 282
 283 /* captoinfo.c: capability conversion */
 284 extern NCURSES_EXPORT(char *) _nc_captoinfo (const char *, const char *, int const);
 285 extern NCURSES_EXPORT(char *) _nc_infotocap (const char *, const char *, int const);
 286
 287 /* lib_tparm.c */
 288 #define NUM_PARM 9
 289
 290 extern NCURSES_EXPORT_VAR(int) _nc_tparm_err;
 291
 292 extern NCURSES_EXPORT(int) _nc_tparm_analyze(const char *string, char *p_is_s[NUM_PARM], int *popcount);
 293
 294 /* lib_tputs.c */
 295 extern NCURSES_EXPORT_VAR(int) _nc_nulls_sent;          /* Add one for every null sent */
 296
 297 /* comp_main.c: compiler main */
 298 extern const char * _nc_progname;
 299
 300 /* read_entry.c */
 301 extern NCURSES_EXPORT(const char *) _nc_tic_dir (const char *);
 302
 303 /* write_entry.c */
 304 extern NCURSES_EXPORT(int) _nc_tic_written (void);
 305
 306 #ifdef __cplusplus
 307 }
 308 #endif
 309
 310 #endif /* __TIC_H */