rlprivate.h

   1 /* rlprivate.h -- functions and variables global to the readline library,
   2                   but not intended for use by applications. */
   3
   4 /* Copyright (C) 1999-2022 Free Software Foundation, Inc.
   5
   6    This file is part of the GNU Readline Library (Readline), a library
   7    for reading lines of text with interactive input and history editing.
   8
   9    Readline is free software: you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation, either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    Readline is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with Readline.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #if !defined (_RL_PRIVATE_H_)
  24 #define _RL_PRIVATE_H_
  25
  26 #include "rlconf.h"     /* for VISIBLE_STATS */
  27 #include "rlstdc.h"
  28 #include "posixjmp.h"   /* defines procenv_t */
  29 #include "rlmbutil.h"   /* for HANDLE_MULTIBYTE */
  30
  31 /*************************************************************************
  32  *                                                                       *
  33  * Convenience definitions                                               *
  34  *                                                                       *
  35  *************************************************************************/
  36
  37 #define EMACS_MODE()            (rl_editing_mode == emacs_mode)
  38 #define VI_COMMAND_MODE()       (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap)
  39 #define VI_INSERT_MODE()        (rl_editing_mode == vi_mode && _rl_keymap == vi_insertion_keymap)
  40
  41 #define RL_CHECK_SIGNALS() \
  42         do { \
  43           if (_rl_caught_signal) _rl_signal_handler (_rl_caught_signal); \
  44         } while (0)
  45
  46 #define RL_SIG_RECEIVED() (_rl_caught_signal != 0)
  47 #define RL_SIGINT_RECEIVED() (_rl_caught_signal == SIGINT)
  48 #define RL_SIGWINCH_RECEIVED() (_rl_caught_signal == SIGWINCH)
  49
  50 #define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
  51 #define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
  52
  53 /*************************************************************************
  54  *                                                                       *
  55  * Global structs undocumented in texinfo manual and not in readline.h   *
  56  *                                                                       *
  57  *************************************************************************/
  58 /* search types */
  59 #define RL_SEARCH_ISEARCH       0x01            /* incremental search */
  60 #define RL_SEARCH_NSEARCH       0x02            /* non-incremental search */
  61 #define RL_SEARCH_CSEARCH       0x04            /* intra-line char search */
  62
  63 /* search flags */
  64 #define SF_REVERSE              0x01
  65 #define SF_FOUND                0x02
  66 #define SF_FAILED               0x04
  67 #define SF_CHGKMAP              0x08
  68 #define SF_PATTERN              0x10
  69 #define SF_NOCASE               0x20            /* unused so far */
  70
  71 typedef struct  __rl_search_context
  72 {
  73   int type;
  74   int sflags;
  75
  76   char *search_string;
  77   int search_string_index;
  78   int search_string_size;
  79
  80   char **lines;
  81   char *allocated_line;
  82   int hlen;
  83   int hindex;
  84
  85   int save_point;
  86   int save_mark;
  87   int save_line;
  88   int last_found_line;
  89   char *prev_line_found;
  90
  91   UNDO_LIST *save_undo_list;
  92
  93   Keymap keymap;        /* used when dispatching commands in search string */
  94   Keymap okeymap;       /* original keymap */
  95
  96   int history_pos;
  97   int direction;
  98
  99   int prevc;
 100   int lastc;
 101 #if defined (HANDLE_MULTIBYTE)
 102   char mb[MB_LEN_MAX];
 103   char pmb[MB_LEN_MAX];
 104 #endif
 105
 106   char *sline;
 107   int sline_len;
 108   int sline_index;
 109
 110   char  *search_terminators;
 111 } _rl_search_cxt;
 112
 113 struct _rl_cmd {
 114   Keymap map;
 115   int count;
 116   int key;
 117   rl_command_func_t *func;
 118 };
 119 extern struct _rl_cmd _rl_pending_command;
 120 extern struct _rl_cmd *_rl_command_to_execute;
 121
 122 /* Callback data for reading numeric arguments */
 123 #define NUM_SAWMINUS    0x01
 124 #define NUM_SAWDIGITS   0x02
 125 #define NUM_READONE     0x04
 126
 127 typedef int _rl_arg_cxt;
 128
 129 /* A context for reading key sequences longer than a single character when
 130    using the callback interface. */
 131 #define KSEQ_DISPATCHED 0x01
 132 #define KSEQ_SUBSEQ     0x02
 133 #define KSEQ_RECURSIVE  0x04
 134
 135 typedef struct __rl_keyseq_context
 136 {
 137   int flags;
 138   int subseq_arg;
 139   int subseq_retval;            /* XXX */
 140   int okey;
 141
 142   Keymap dmap;
 143   Keymap oldmap;
 144
 145   struct __rl_keyseq_context *ocxt;
 146   int childval;
 147 } _rl_keyseq_cxt;
 148
 149 /* vi-mode commands that use result of motion command to define boundaries */
 150 #define VIM_DELETE      0x01
 151 #define VIM_CHANGE      0x02
 152 #define VIM_YANK        0x04
 153
 154 /* various states for vi-mode commands that use motion commands.  reflects
 155    RL_READLINE_STATE */
 156 #define VMSTATE_READ    0x01
 157 #define VMSTATE_NUMARG  0x02
 158
 159 typedef struct __rl_vimotion_context
 160 {
 161   int op;
 162   int state;
 163   int flags;            /* reserved */
 164   _rl_arg_cxt ncxt;
 165   int numeric_arg;
 166   int start, end;       /* rl_point, rl_end */
 167   int key, motion;      /* initial key, motion command */
 168 } _rl_vimotion_cxt;
 169
 170 /* fill in more as needed */
 171 /* `Generic' callback data and functions */
 172 typedef struct __rl_callback_generic_arg
 173 {
 174   int count;
 175   int i1, i2;
 176   /* add here as needed */
 177 } _rl_callback_generic_arg;
 178
 179 typedef int _rl_callback_func_t (_rl_callback_generic_arg *);
 180
 181 typedef void _rl_sigcleanup_func_t (int, void *);
 182
 183 /*************************************************************************
 184  *                                                                       *
 185  * Global functions undocumented in texinfo manual and not in readline.h *
 186  *                                                                       *
 187  *************************************************************************/
 188
 189 /*************************************************************************
 190  *                                                                       *
 191  * Global variables undocumented in texinfo manual and not in readline.h *
 192  *                                                                       *
 193  *************************************************************************/
 194
 195 /* complete.c */
 196 extern int rl_complete_with_tilde_expansion;
 197 #if defined (VISIBLE_STATS)
 198 extern int rl_visible_stats;
 199 #endif /* VISIBLE_STATS */
 200 #if defined (COLOR_SUPPORT)
 201 extern int _rl_colored_stats;
 202 extern int _rl_colored_completion_prefix;
 203 #endif
 204
 205 /* readline.c */
 206 extern int rl_line_buffer_len;
 207 extern int rl_arg_sign;
 208 extern int rl_visible_prompt_length;
 209 extern int rl_byte_oriented;
 210
 211 /* display.c */
 212 extern int rl_display_fixed;
 213
 214 /* parens.c */
 215 extern int rl_blink_matching_paren;
 216
 217 /*************************************************************************
 218  *                                                                       *
 219  * Global functions and variables unused and undocumented                *
 220  *                                                                       *
 221  *************************************************************************/
 222
 223 /* kill.c */
 224 extern int rl_set_retained_kills (int);
 225
 226 /* terminal.c */
 227 extern void _rl_set_screen_size (int, int);
 228
 229 /* undo.c */
 230 extern int _rl_fix_last_undo_of_type (int, int, int);
 231
 232 /* util.c */
 233 extern char *_rl_savestring (const char *);
 234
 235 /*************************************************************************
 236  *                                                                       *
 237  * Functions and variables private to the readline library               *
 238  *                                                                       *
 239  *************************************************************************/
 240
 241 /* NOTE: Functions and variables prefixed with `_rl_' are
 242    pseudo-global: they are global so they can be shared
 243    between files in the readline library, but are not intended
 244    to be visible to readline callers. */
 245
 246 /*************************************************************************
 247  * Undocumented private functions                                        *
 248  *************************************************************************/
 249
 250 #if defined(READLINE_CALLBACKS)
 251
 252 /* readline.c */
 253 extern void readline_internal_setup (void);
 254 extern char *readline_internal_teardown (int);
 255 extern int readline_internal_char (void);
 256
 257 extern _rl_keyseq_cxt *_rl_keyseq_cxt_alloc (void);
 258 extern void _rl_keyseq_cxt_dispose (_rl_keyseq_cxt *);
 259 extern void _rl_keyseq_chain_dispose (void);
 260
 261 extern int _rl_dispatch_callback (_rl_keyseq_cxt *);
 262
 263 /* callback.c */
 264 extern _rl_callback_generic_arg *_rl_callback_data_alloc (int);
 265 extern void _rl_callback_data_dispose (_rl_callback_generic_arg *);
 266
 267 #endif /* READLINE_CALLBACKS */
 268
 269 /* bind.c */
 270 extern char *_rl_untranslate_macro_value (char *, int);
 271
 272 /* complete.c */
 273 extern void _rl_reset_completion_state (void);
 274 extern char _rl_find_completion_word (int *, int *);
 275 extern void _rl_free_match_list (char **);
 276
 277 /* display.c */
 278 extern char *_rl_strip_prompt (char *);
 279 extern void _rl_reset_prompt (void);
 280 extern void _rl_move_vert (int);
 281 extern void _rl_save_prompt (void);
 282 extern void _rl_restore_prompt (void);
 283 extern char *_rl_make_prompt_for_search (int);
 284 extern void _rl_erase_at_end_of_line (int);
 285 extern void _rl_clear_to_eol (int);
 286 extern void _rl_clear_screen (int);
 287 extern void _rl_update_final (void);
 288 extern void _rl_optimize_redisplay (void);
 289 extern void _rl_redisplay_after_sigwinch (void);
 290 extern void _rl_clean_up_for_exit (void);
 291 extern void _rl_erase_entire_line (void);
 292 extern int _rl_current_display_line (void);
 293 extern void _rl_refresh_line (void);
 294
 295 /* input.c */
 296 extern int _rl_any_typein (void);
 297 extern int _rl_input_available (void);
 298 extern int _rl_nchars_available (void);
 299 extern int _rl_input_queued (int);
 300 extern void _rl_insert_typein (int);
 301 extern int _rl_unget_char (int);
 302 extern int _rl_pushed_input_available (void);
 303
 304 extern int _rl_timeout_init (void);
 305 extern int _rl_timeout_handle_sigalrm (void);
 306 #if defined (_POSIXSELECT_H_)
 307 /* use as a sentinel for fd_set, struct timeval,  and sigset_t definitions */
 308 extern int _rl_timeout_select (int, fd_set *, fd_set *, fd_set *, const struct timeval *, const sigset_t *);
 309 #endif
 310
 311 /* isearch.c */
 312 extern _rl_search_cxt *_rl_scxt_alloc (int, int);
 313 extern void _rl_scxt_dispose (_rl_search_cxt *, int);
 314
 315 extern int _rl_isearch_dispatch (_rl_search_cxt *, int);
 316 extern int _rl_isearch_callback (_rl_search_cxt *);
 317 extern int _rl_isearch_cleanup (_rl_search_cxt *, int);
 318
 319 extern int _rl_search_getchar (_rl_search_cxt *);
 320
 321 /* kill.c */
 322 #ifndef BRACKETED_PASTE_DEFAULT
 323 #  define BRACKETED_PASTE_DEFAULT       1       /* XXX - for now */
 324 #endif
 325
 326 #define BRACK_PASTE_PREF        "\033[200~"
 327 #define BRACK_PASTE_SUFF        "\033[201~"
 328
 329 #define BRACK_PASTE_LAST        '~'
 330 #define BRACK_PASTE_SLEN        6
 331
 332 #define BRACK_PASTE_INIT        "\033[?2004h"
 333 #define BRACK_PASTE_FINI        "\033[?2004l\r"
 334
 335 extern int _rl_read_bracketed_paste_prefix (int);
 336 extern char *_rl_bracketed_text (size_t *);
 337 extern int _rl_bracketed_read_key (void);
 338 extern int _rl_bracketed_read_mbstring (char *, int);
 339
 340 /* macro.c */
 341 extern void _rl_with_macro_input (char *);
 342 extern int _rl_peek_macro_key (void);
 343 extern int _rl_next_macro_key (void);
 344 extern int _rl_prev_macro_key (void);
 345 extern void _rl_push_executing_macro (void);
 346 extern void _rl_pop_executing_macro (void);
 347 extern void _rl_add_macro_char (int);
 348 extern void _rl_kill_kbd_macro (void);
 349
 350 /* misc.c */
 351 extern int _rl_arg_overflow (void);
 352 extern void _rl_arg_init (void);
 353 extern int _rl_arg_getchar (void);
 354 extern int _rl_arg_callback (_rl_arg_cxt);
 355 extern void _rl_reset_argument (void);
 356
 357 extern void _rl_start_using_history (void);
 358 extern int _rl_free_saved_history_line (void);
 359 extern void _rl_set_insert_mode (int, int);
 360
 361 extern void _rl_revert_previous_lines (void);
 362 extern void _rl_revert_all_lines (void);
 363
 364 /* nls.c */
 365 extern char *_rl_init_locale (void);
 366 extern int _rl_init_eightbit (void);
 367 extern void _rl_reset_locale (void);
 368
 369 /* parens.c */
 370 extern void _rl_enable_paren_matching (int);
 371
 372 /* readline.c */
 373 extern void _rl_init_line_state (void);
 374 extern void _rl_set_the_line (void);
 375 extern int _rl_dispatch (int, Keymap);
 376 extern int _rl_dispatch_subseq (int, Keymap, int);
 377 extern void _rl_internal_char_cleanup (void);
 378
 379 extern void _rl_init_executing_keyseq (void);
 380 extern void _rl_term_executing_keyseq (void);
 381 extern void _rl_end_executing_keyseq (void);
 382 extern void _rl_add_executing_keyseq (int);
 383 extern void _rl_del_executing_keyseq (void);
 384
 385 extern rl_command_func_t *_rl_executing_func;
 386
 387 /* rltty.c */
 388 extern int _rl_disable_tty_signals (void);
 389 extern int _rl_restore_tty_signals (void);
 390
 391 /* search.c */
 392 extern int _rl_nsearch_callback (_rl_search_cxt *);
 393 extern int _rl_nsearch_cleanup (_rl_search_cxt *, int);
 394
 395 /* signals.c */
 396 extern void _rl_signal_handler (int);
 397
 398 extern void _rl_block_sigint (void);
 399 extern void _rl_release_sigint (void);
 400 extern void _rl_block_sigwinch (void);
 401 extern void _rl_release_sigwinch (void);
 402
 403 /* terminal.c */
 404 extern void _rl_get_screen_size (int, int);
 405 extern void _rl_sigwinch_resize_terminal (void);
 406 extern int _rl_init_terminal_io (const char *);
 407 #ifdef _MINIX
 408 extern void _rl_output_character_function (int);
 409 #else
 410 extern int _rl_output_character_function (int);
 411 #endif
 412 extern void _rl_cr (void);
 413 extern void _rl_output_some_chars (const char *, int);
 414 extern int _rl_backspace (int);
 415 extern void _rl_enable_meta_key (void);
 416 extern void _rl_disable_meta_key (void);
 417 extern void _rl_control_keypad (int);
 418 extern void _rl_set_cursor (int, int);
 419 extern void _rl_standout_on (void);
 420 extern void _rl_standout_off (void);
 421 extern int _rl_reset_region_color (int, const char *);
 422 extern void _rl_region_color_on (void);
 423 extern void _rl_region_color_off (void);
 424
 425 /* text.c */
 426 extern void _rl_fix_point (int);
 427 extern void _rl_fix_mark (void);
 428 extern int _rl_replace_text (const char *, int, int);
 429 extern int _rl_forward_char_internal (int);
 430 extern int _rl_backward_char_internal (int);
 431 extern int _rl_insert_char (int, int);
 432 extern int _rl_overwrite_char (int, int);
 433 extern int _rl_overwrite_rubout (int, int);
 434 extern int _rl_rubout_char (int, int);
 435 #if defined (HANDLE_MULTIBYTE)
 436 extern int _rl_char_search_internal (int, int, char *, int);
 437 #else
 438 extern int _rl_char_search_internal (int, int, int);
 439 #endif
 440 extern int _rl_set_mark_at_pos (int);
 441
 442 /* undo.c */
 443 extern UNDO_LIST *_rl_copy_undo_entry (UNDO_LIST *);
 444 extern UNDO_LIST *_rl_copy_undo_list (UNDO_LIST *);
 445 extern void _rl_free_undo_list (UNDO_LIST *);
 446
 447 /* util.c */
 448 #if defined (USE_VARARGS) && defined (PREFER_STDARG)
 449 extern void _rl_ttymsg (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
 450 extern void _rl_errmsg (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
 451 extern void _rl_trace (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
 452 #else
 453 extern void _rl_ttymsg ();
 454 extern void _rl_errmsg ();
 455 extern void _rl_trace ();
 456 #endif
 457 extern void _rl_audit_tty (char *);
 458
 459 extern int _rl_tropen (void);
 460
 461 extern int _rl_abort_internal (void);
 462 extern int _rl_null_function (int, int);
 463 extern char *_rl_strindex (const char *, const char *);
 464 extern int _rl_qsort_string_compare (char **, char **);
 465 extern int (_rl_uppercase_p) (int);
 466 extern int (_rl_lowercase_p) (int);
 467 extern int (_rl_pure_alphabetic) (int);
 468 extern int (_rl_digit_p) (int);
 469 extern int (_rl_to_lower) (int);
 470 extern int (_rl_to_upper) (int);
 471 extern int (_rl_digit_value) (int);
 472
 473 /* vi_mode.c */
 474 extern void _rl_vi_initialize_line (void);
 475 extern void _rl_vi_reset_last (void);
 476 extern void _rl_vi_set_last (int, int, int);
 477 extern int _rl_vi_textmod_command (int);
 478 extern int _rl_vi_motion_command (int);
 479 extern void _rl_vi_done_inserting (void);
 480 extern int _rl_vi_domove_callback (_rl_vimotion_cxt *);
 481 extern int _rl_vi_domove_motion_cleanup (int, _rl_vimotion_cxt *);
 482
 483 /* Use HS_HISTORY_VERSION as the sentinel to see if we've included history.h
 484    and so can use HIST_ENTRY */
 485 #if defined (HS_HISTORY_VERSION)
 486 extern void _rl_free_history_entry (HIST_ENTRY *);
 487 #endif
 488
 489 /*************************************************************************
 490  * Undocumented private variables                                        *
 491  *************************************************************************/
 492
 493 /* bind.c */
 494 extern const char * const _rl_possible_control_prefixes[];
 495 extern const char * const _rl_possible_meta_prefixes[];
 496
 497 /* callback.c */
 498 extern _rl_callback_func_t *_rl_callback_func;
 499 extern _rl_callback_generic_arg *_rl_callback_data;
 500
 501 /* complete.c */
 502 extern int _rl_complete_show_all;
 503 extern int _rl_complete_show_unmodified;
 504 extern int _rl_complete_mark_directories;
 505 extern int _rl_complete_mark_symlink_dirs;
 506 extern int _rl_completion_prefix_display_length;
 507 extern int _rl_completion_columns;
 508 extern int _rl_print_completions_horizontally;
 509 extern int _rl_completion_case_fold;
 510 extern int _rl_completion_case_map;
 511 extern int _rl_match_hidden_files;
 512 extern int _rl_page_completions;
 513 extern int _rl_skip_completed_text;
 514 extern int _rl_menu_complete_prefix_first;
 515
 516 /* display.c */
 517 extern int _rl_vis_botlin;
 518 extern int _rl_last_c_pos;
 519 extern int _rl_suppress_redisplay;
 520 extern int _rl_want_redisplay;
 521
 522 extern char *_rl_emacs_mode_str;
 523 extern int _rl_emacs_modestr_len;
 524 extern char *_rl_vi_ins_mode_str;
 525 extern int _rl_vi_ins_modestr_len;
 526 extern char *_rl_vi_cmd_mode_str;
 527 extern int _rl_vi_cmd_modestr_len;
 528
 529 /* isearch.c */
 530 extern char *_rl_isearch_terminators;
 531
 532 extern _rl_search_cxt *_rl_iscxt;
 533
 534 /* macro.c */
 535 extern char *_rl_executing_macro;
 536
 537 /* misc.c */
 538 extern int _rl_history_preserve_point;
 539 extern int _rl_history_saved_point;
 540
 541 extern _rl_arg_cxt _rl_argcxt;
 542
 543 /* nls.c */
 544 extern int _rl_utf8locale;
 545
 546 /* readline.c */
 547 extern int _rl_echoing_p;
 548 extern int _rl_horizontal_scroll_mode;
 549 extern int _rl_mark_modified_lines;
 550 extern int _rl_bell_preference;
 551 extern int _rl_meta_flag;
 552 extern int _rl_convert_meta_chars_to_ascii;
 553 extern int _rl_output_meta_chars;
 554 extern int _rl_bind_stty_chars;
 555 extern int _rl_revert_all_at_newline;
 556 extern int _rl_echo_control_chars;
 557 extern int _rl_show_mode_in_prompt;
 558 extern int _rl_enable_bracketed_paste;
 559 extern int _rl_enable_active_region;
 560 extern char *_rl_active_region_start_color;
 561 extern char *_rl_active_region_end_color;
 562 extern char *_rl_comment_begin;
 563 extern unsigned char _rl_parsing_conditionalized_out;
 564 extern Keymap _rl_keymap;
 565 extern FILE *_rl_in_stream;
 566 extern FILE *_rl_out_stream;
 567 extern int _rl_last_command_was_kill;
 568 extern int _rl_eof_char;
 569 extern procenv_t _rl_top_level;
 570 extern _rl_keyseq_cxt *_rl_kscxt;
 571 extern int _rl_keyseq_timeout;
 572
 573 extern int _rl_executing_keyseq_size;
 574
 575 extern rl_hook_func_t *_rl_internal_startup_hook;
 576
 577 /* search.c */
 578 extern _rl_search_cxt *_rl_nscxt;
 579 extern int _rl_history_search_pos;
 580
 581 /* signals.c */
 582 extern int volatile _rl_caught_signal;
 583
 584 extern _rl_sigcleanup_func_t *_rl_sigcleanup;
 585 extern void *_rl_sigcleanarg;
 586
 587 extern int _rl_echoctl;
 588
 589 extern int _rl_intr_char;
 590 extern int _rl_quit_char;
 591 extern int _rl_susp_char;
 592
 593 /* terminal.c */
 594 extern int _rl_enable_keypad;
 595 extern int _rl_enable_meta;
 596 extern char *_rl_term_clreol;
 597 extern char *_rl_term_clrpag;
 598 extern char *_rl_term_clrscroll;
 599 extern char *_rl_term_im;
 600 extern char *_rl_term_ic;
 601 extern char *_rl_term_ei;
 602 extern char *_rl_term_DC;
 603 extern char *_rl_term_up;
 604 extern char *_rl_term_dc;
 605 extern char *_rl_term_cr;
 606 extern char *_rl_term_IC;
 607 extern char *_rl_term_forward_char;
 608 extern int _rl_screenheight;
 609 extern int _rl_screenwidth;
 610 extern int _rl_screenchars;
 611 extern int _rl_terminal_can_insert;
 612 extern int _rl_term_autowrap;
 613
 614 /* text.c */
 615 extern int _rl_optimize_typeahead;
 616 extern int _rl_keep_mark_active;
 617
 618 /* undo.c */
 619 extern int _rl_doing_an_undo;
 620 extern int _rl_undo_group_level;
 621
 622 /* vi_mode.c */
 623 extern int _rl_vi_last_command;
 624 extern int _rl_vi_redoing;
 625 extern _rl_vimotion_cxt *_rl_vimvcxt;
 626
 627 /* Use HS_HISTORY_VERSION as the sentinel to see if we've included history.h
 628    and so can use HIST_ENTRY */
 629 #if defined (HS_HISTORY_VERSION)
 630 extern HIST_ENTRY *_rl_saved_line_for_history;
 631 #endif
 632
 633 #endif /* _RL_PRIVATE_H_ */