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[deliverable/binutils-gdb.git] / readline / rlprivate.h
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1/* rlprivate.h -- functions and variables global to the readline library,
2 but not intended for use by applications. */
3
4/* Copyright (C) 1999-2010 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
30/*************************************************************************
31 * *
32 * Convenience definitions *
33 * *
34 *************************************************************************/
35
36#define EMACS_MODE() (rl_editing_mode == emacs_mode)
37#define VI_COMMAND_MODE() (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap)
38#define VI_INSERT_MODE() (rl_editing_mode == vi_mode && _rl_keymap == vi_insertion_keymap)
39
40#define RL_CHECK_SIGNALS() \
41 do { \
42 if (_rl_caught_signal) _rl_signal_handler (_rl_caught_signal); \
43 } while (0)
44
45/*************************************************************************
46 * *
47 * Global structs undocumented in texinfo manual and not in readline.h *
48 * *
49 *************************************************************************/
50/* search types */
51#define RL_SEARCH_ISEARCH 0x01 /* incremental search */
52#define RL_SEARCH_NSEARCH 0x02 /* non-incremental search */
53#define RL_SEARCH_CSEARCH 0x04 /* intra-line char search */
54
55/* search flags */
56#define SF_REVERSE 0x01
57#define SF_FOUND 0x02
58#define SF_FAILED 0x04
59#define SF_CHGKMAP 0x08
60
61typedef struct __rl_search_context
62{
63 int type;
64 int sflags;
65
66 char *search_string;
67 int search_string_index;
68 int search_string_size;
69
70 char **lines;
71 char *allocated_line;
72 int hlen;
73 int hindex;
74
75 int save_point;
76 int save_mark;
77 int save_line;
78 int last_found_line;
79 char *prev_line_found;
80
81 UNDO_LIST *save_undo_list;
82
83 Keymap keymap; /* used when dispatching commands in search string */
84 Keymap okeymap; /* original keymap */
85
86 int history_pos;
87 int direction;
88
89 int lastc;
90#if defined (HANDLE_MULTIBYTE)
91 char mb[MB_LEN_MAX];
92#endif
93
94 char *sline;
95 int sline_len;
96 int sline_index;
97
98 char *search_terminators;
99} _rl_search_cxt;
100
101/* Callback data for reading numeric arguments */
102#define NUM_SAWMINUS 0x01
103#define NUM_SAWDIGITS 0x02
104#define NUM_READONE 0x04
105
106typedef int _rl_arg_cxt;
107
108/* A context for reading key sequences longer than a single character when
109 using the callback interface. */
110#define KSEQ_DISPATCHED 0x01
111#define KSEQ_SUBSEQ 0x02
112#define KSEQ_RECURSIVE 0x04
113
114typedef struct __rl_keyseq_context
115{
116 int flags;
117 int subseq_arg;
118 int subseq_retval; /* XXX */
119 Keymap dmap;
120
121 Keymap oldmap;
122 int okey;
123 struct __rl_keyseq_context *ocxt;
124 int childval;
125} _rl_keyseq_cxt;
126
127/* vi-mode commands that use result of motion command to define boundaries */
128#define VIM_DELETE 0x01
129#define VIM_CHANGE 0x02
130#define VIM_YANK 0x04
131
132/* various states for vi-mode commands that use motion commands. reflects
133 RL_READLINE_STATE */
134#define VMSTATE_READ 0x01
135#define VMSTATE_NUMARG 0x02
136
137typedef struct __rl_vimotion_context
138{
139 int op;
140 int state;
141 int flags; /* reserved */
142 _rl_arg_cxt ncxt;
143 int numeric_arg;
144 int start, end; /* rl_point, rl_end */
145 int key, motion; /* initial key, motion command */
146} _rl_vimotion_cxt;
147
148/* fill in more as needed */
149/* `Generic' callback data and functions */
150typedef struct __rl_callback_generic_arg
151{
152 int count;
153 int i1, i2;
154 /* add here as needed */
155} _rl_callback_generic_arg;
156
157typedef int _rl_callback_func_t PARAMS((_rl_callback_generic_arg *));
158
159/*************************************************************************
160 * *
161 * Global functions undocumented in texinfo manual and not in readline.h *
162 * *
163 *************************************************************************/
164
165/*************************************************************************
166 * *
167 * Global variables undocumented in texinfo manual and not in readline.h *
168 * *
169 *************************************************************************/
170
171/* complete.c */
172extern int rl_complete_with_tilde_expansion;
173#if defined (VISIBLE_STATS)
174extern int rl_visible_stats;
175#endif /* VISIBLE_STATS */
176
177/* readline.c */
178extern int rl_line_buffer_len;
179extern int rl_arg_sign;
180extern int rl_visible_prompt_length;
181extern int rl_key_sequence_length;
182extern int rl_byte_oriented;
183
184/* display.c */
185extern int rl_display_fixed;
186
187/* parens.c */
188extern int rl_blink_matching_paren;
189
190/*************************************************************************
191 * *
192 * Global functions and variables unsed and undocumented *
193 * *
194 *************************************************************************/
195
196/* kill.c */
197extern int rl_set_retained_kills PARAMS((int));
198
199/* terminal.c */
200extern void _rl_set_screen_size PARAMS((int, int));
201
202/* undo.c */
203extern int _rl_fix_last_undo_of_type PARAMS((int, int, int));
204
205/* util.c */
206extern char *_rl_savestring PARAMS((const char *));
207
208/*************************************************************************
209 * *
210 * Functions and variables private to the readline library *
211 * *
212 *************************************************************************/
213
214/* NOTE: Functions and variables prefixed with `_rl_' are
215 pseudo-global: they are global so they can be shared
216 between files in the readline library, but are not intended
217 to be visible to readline callers. */
218
219/*************************************************************************
220 * Undocumented private functions *
221 *************************************************************************/
222
223#if defined(READLINE_CALLBACKS)
224
225/* readline.c */
226extern void readline_internal_setup PARAMS((void));
227extern char *readline_internal_teardown PARAMS((int));
228extern int readline_internal_char PARAMS((void));
229
230extern _rl_keyseq_cxt *_rl_keyseq_cxt_alloc PARAMS((void));
231extern void _rl_keyseq_cxt_dispose PARAMS((_rl_keyseq_cxt *));
232extern void _rl_keyseq_chain_dispose PARAMS((void));
233
234extern int _rl_dispatch_callback PARAMS((_rl_keyseq_cxt *));
235
236/* callback.c */
237extern _rl_callback_generic_arg *_rl_callback_data_alloc PARAMS((int));
238extern void _rl_callback_data_dispose PARAMS((_rl_callback_generic_arg *));
239
240#endif /* READLINE_CALLBACKS */
241
242/* bind.c */
243
244/* complete.c */
245extern void _rl_reset_completion_state PARAMS((void));
246extern char _rl_find_completion_word PARAMS((int *, int *));
247extern void _rl_free_match_list PARAMS((char **));
248
249/* display.c */
250extern char *_rl_strip_prompt PARAMS((char *));
251extern void _rl_move_cursor_relative PARAMS((int, const char *));
252extern void _rl_move_vert PARAMS((int));
253extern void _rl_save_prompt PARAMS((void));
254extern void _rl_restore_prompt PARAMS((void));
255extern char *_rl_make_prompt_for_search PARAMS((int));
256extern void _rl_erase_at_end_of_line PARAMS((int));
257extern void _rl_clear_to_eol PARAMS((int));
258extern void _rl_clear_screen PARAMS((void));
259extern void _rl_update_final PARAMS((void));
260extern void _rl_redisplay_after_sigwinch PARAMS((void));
261extern void _rl_clean_up_for_exit PARAMS((void));
262extern void _rl_erase_entire_line PARAMS((void));
263extern int _rl_current_display_line PARAMS((void));
264
265/* input.c */
266extern int _rl_any_typein PARAMS((void));
267extern int _rl_input_available PARAMS((void));
268extern int _rl_input_queued PARAMS((int));
269extern void _rl_insert_typein PARAMS((int));
270extern int _rl_unget_char PARAMS((int));
271extern int _rl_pushed_input_available PARAMS((void));
272
273/* isearch.c */
274extern _rl_search_cxt *_rl_scxt_alloc PARAMS((int, int));
275extern void _rl_scxt_dispose PARAMS((_rl_search_cxt *, int));
276
277extern int _rl_isearch_dispatch PARAMS((_rl_search_cxt *, int));
278extern int _rl_isearch_callback PARAMS((_rl_search_cxt *));
279
280extern int _rl_search_getchar PARAMS((_rl_search_cxt *));
281
282/* macro.c */
283extern void _rl_with_macro_input PARAMS((char *));
284extern int _rl_next_macro_key PARAMS((void));
285extern void _rl_push_executing_macro PARAMS((void));
286extern void _rl_pop_executing_macro PARAMS((void));
287extern void _rl_add_macro_char PARAMS((int));
288extern void _rl_kill_kbd_macro PARAMS((void));
289
290/* misc.c */
291extern int _rl_arg_overflow PARAMS((void));
292extern void _rl_arg_init PARAMS((void));
293extern int _rl_arg_getchar PARAMS((void));
294extern int _rl_arg_callback PARAMS((_rl_arg_cxt));
295extern void _rl_reset_argument PARAMS((void));
296
297extern void _rl_start_using_history PARAMS((void));
298extern int _rl_free_saved_history_line PARAMS((void));
299extern void _rl_set_insert_mode PARAMS((int, int));
300
301extern void _rl_revert_all_lines PARAMS((void));
302
303/* nls.c */
304extern int _rl_init_eightbit PARAMS((void));
305
306/* parens.c */
307extern void _rl_enable_paren_matching PARAMS((int));
308
309/* readline.c */
310extern void _rl_init_line_state PARAMS((void));
311extern void _rl_set_the_line PARAMS((void));
312extern int _rl_dispatch PARAMS((int, Keymap));
313extern int _rl_dispatch_subseq PARAMS((int, Keymap, int));
314extern void _rl_internal_char_cleanup PARAMS((void));
315
316/* rltty.c */
317extern int _rl_disable_tty_signals PARAMS((void));
318extern int _rl_restore_tty_signals PARAMS((void));
319
320/* search.c */
321extern int _rl_nsearch_callback PARAMS((_rl_search_cxt *));
322
323/* signals.c */
324extern void _rl_signal_handler PARAMS((int));
325
326extern void _rl_block_sigint PARAMS((void));
327extern void _rl_release_sigint PARAMS((void));
328extern void _rl_block_sigwinch PARAMS((void));
329extern void _rl_release_sigwinch PARAMS((void));
330
331/* terminal.c */
332extern void _rl_get_screen_size PARAMS((int, int));
333extern int _rl_init_terminal_io PARAMS((const char *));
334#ifdef _MINIX
335extern void _rl_output_character_function PARAMS((int));
336#else
337extern int _rl_output_character_function PARAMS((int));
338#endif
339extern void _rl_output_some_chars PARAMS((const char *, int));
340extern int _rl_backspace PARAMS((int));
341extern void _rl_enable_meta_key PARAMS((void));
342extern void _rl_control_keypad PARAMS((int));
343extern void _rl_set_cursor PARAMS((int, int));
344
345/* text.c */
346extern void _rl_fix_point PARAMS((int));
347extern int _rl_replace_text PARAMS((const char *, int, int));
348extern int _rl_forward_char_internal PARAMS((int));
349extern int _rl_insert_char PARAMS((int, int));
350extern int _rl_overwrite_char PARAMS((int, int));
351extern int _rl_overwrite_rubout PARAMS((int, int));
352extern int _rl_rubout_char PARAMS((int, int));
353#if defined (HANDLE_MULTIBYTE)
354extern int _rl_char_search_internal PARAMS((int, int, char *, int));
355#else
356extern int _rl_char_search_internal PARAMS((int, int, int));
357#endif
358extern int _rl_set_mark_at_pos PARAMS((int));
359
360/* undo.c */
361extern UNDO_LIST *_rl_copy_undo_entry PARAMS((UNDO_LIST *));
362extern UNDO_LIST *_rl_copy_undo_list PARAMS((UNDO_LIST *));
363
364/* util.c */
365#if defined (USE_VARARGS) && defined (PREFER_STDARG)
366extern void _rl_ttymsg (const char *, ...) __attribute__((__format__ (printf, 1, 2)));
367extern void _rl_errmsg (const char *, ...) __attribute__((__format__ (printf, 1, 2)));
368extern void _rl_trace (const char *, ...) __attribute__((__format__ (printf, 1, 2)));
369#else
370extern void _rl_ttymsg ();
371extern void _rl_errmsg ();
372extern void _rl_trace ();
373#endif
374
375extern int _rl_tropen PARAMS((void));
376
377extern int _rl_abort_internal PARAMS((void));
378extern int _rl_null_function PARAMS((int, int));
379extern char *_rl_strindex PARAMS((const char *, const char *));
380extern int _rl_qsort_string_compare PARAMS((char **, char **));
381extern int (_rl_uppercase_p) PARAMS((int));
382extern int (_rl_lowercase_p) PARAMS((int));
383extern int (_rl_pure_alphabetic) PARAMS((int));
384extern int (_rl_digit_p) PARAMS((int));
385extern int (_rl_to_lower) PARAMS((int));
386extern int (_rl_to_upper) PARAMS((int));
387extern int (_rl_digit_value) PARAMS((int));
388
389/* vi_mode.c */
390extern void _rl_vi_initialize_line PARAMS((void));
391extern void _rl_vi_reset_last PARAMS((void));
392extern void _rl_vi_set_last PARAMS((int, int, int));
393extern int _rl_vi_textmod_command PARAMS((int));
394extern void _rl_vi_done_inserting PARAMS((void));
395extern int _rl_vi_domove_callback PARAMS((_rl_vimotion_cxt *));
396
397/*************************************************************************
398 * Undocumented private variables *
399 *************************************************************************/
400
401/* bind.c */
402extern const char * const _rl_possible_control_prefixes[];
403extern const char * const _rl_possible_meta_prefixes[];
404
405/* callback.c */
406extern _rl_callback_func_t *_rl_callback_func;
407extern _rl_callback_generic_arg *_rl_callback_data;
408
409/* complete.c */
410extern int _rl_complete_show_all;
411extern int _rl_complete_show_unmodified;
412extern int _rl_complete_mark_directories;
413extern int _rl_complete_mark_symlink_dirs;
414extern int _rl_completion_prefix_display_length;
415extern int _rl_completion_columns;
416extern int _rl_print_completions_horizontally;
417extern int _rl_completion_case_fold;
418extern int _rl_completion_case_map;
419extern int _rl_match_hidden_files;
420extern int _rl_page_completions;
421extern int _rl_skip_completed_text;
422extern int _rl_menu_complete_prefix_first;
423
424/* display.c */
425extern int _rl_vis_botlin;
426extern int _rl_last_c_pos;
427extern int _rl_suppress_redisplay;
428extern int _rl_want_redisplay;
429
430/* isearch.c */
431extern char *_rl_isearch_terminators;
432
433extern _rl_search_cxt *_rl_iscxt;
434
435/* macro.c */
436extern char *_rl_executing_macro;
437
438/* misc.c */
439extern int _rl_history_preserve_point;
440extern int _rl_history_saved_point;
441
442extern _rl_arg_cxt _rl_argcxt;
443
444/* readline.c */
445extern int _rl_echoing_p;
446extern int _rl_horizontal_scroll_mode;
447extern int _rl_mark_modified_lines;
448extern int _rl_bell_preference;
449extern int _rl_meta_flag;
450extern int _rl_convert_meta_chars_to_ascii;
451extern int _rl_output_meta_chars;
452extern int _rl_bind_stty_chars;
453extern int _rl_revert_all_at_newline;
454extern int _rl_echo_control_chars;
455extern char *_rl_comment_begin;
456extern unsigned char _rl_parsing_conditionalized_out;
457extern Keymap _rl_keymap;
458extern FILE *_rl_in_stream;
459extern FILE *_rl_out_stream;
460extern int _rl_last_command_was_kill;
461extern int _rl_eof_char;
462extern procenv_t _rl_top_level;
463extern _rl_keyseq_cxt *_rl_kscxt;
464
465/* search.c */
466extern _rl_search_cxt *_rl_nscxt;
467
468/* signals.c */
469extern int _rl_interrupt_immediately;
470extern int volatile _rl_caught_signal;
471
472extern int _rl_echoctl;
473
474extern int _rl_intr_char;
475extern int _rl_quit_char;
476extern int _rl_susp_char;
477
478/* terminal.c */
479extern int _rl_enable_keypad;
480extern int _rl_enable_meta;
481extern char *_rl_term_clreol;
482extern char *_rl_term_clrpag;
483extern char *_rl_term_im;
484extern char *_rl_term_ic;
485extern char *_rl_term_ei;
486extern char *_rl_term_DC;
487extern char *_rl_term_up;
488extern char *_rl_term_dc;
489extern char *_rl_term_cr;
490extern char *_rl_term_IC;
491extern char *_rl_term_forward_char;
492extern int _rl_screenheight;
493extern int _rl_screenwidth;
494extern int _rl_screenchars;
495extern int _rl_terminal_can_insert;
496extern int _rl_term_autowrap;
497
498/* undo.c */
499extern int _rl_doing_an_undo;
500extern int _rl_undo_group_level;
501
502/* vi_mode.c */
503extern int _rl_vi_last_command;
504extern _rl_vimotion_cxt *_rl_vimvcxt;
505
506#endif /* _RL_PRIVATE_H_ */
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