edit/edit.h

   1 /* edit.h - main include file
   2
   3    Copyright (C) 1996, 1997 the Free Software Foundation
   4
   5    Authors: 1996, 1997 Paul Sheer
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  20    02111-1307, USA.
  21 */
  22
  23 #ifndef __EDIT_H
  24 #define __EDIT_H
  25
  26 #ifdef HAVE_SLANG
  27 #    define HAVE_SYNTAXH 1
  28 #endif
  29
  30 #include <stdio.h>
  31 #include <stdarg.h>
  32 #include <sys/types.h>
  33 #ifdef HAVE_UNISTD_H
  34 #    include <unistd.h>
  35 #endif
  36 #include <string.h>
  37 #include <ctype.h>
  38 #include <errno.h>
  39 #include <sys/stat.h>
  40 #include <errno.h>
  41
  42 #include <fcntl.h>
  43
  44 #include <stdlib.h>
  45 #if !defined(STDC_HEADERS) && defined(HAVE_MALLOC_H)
  46 #    include <malloc.h>
  47 #endif
  48
  49 #if defined(HAVE_RX_H) && defined(HAVE_REGCOMP)
  50 #    include <rx.h>
  51 #else
  52 #    include <regex.h>
  53 #endif
  54
  55 #include "src/global.h"
  56 #include "src/tty.h"
  57 #include "src/main.h"           /* for char *shell */
  58 #include "src/mad.h"
  59 #include "src/dlg.h"
  60 #include "src/widget.h"
  61 #include "src/color.h"
  62 #include "src/dialog.h"
  63 #include "src/mouse.h"
  64 #include "src/help.h"
  65 #include "src/key.h"
  66 #include "src/wtools.h"         /* for QuickWidgets */
  67 #include "src/cmd.h"            /* for menu_edit_cmd */
  68 #include "src/win.h"
  69 #include "vfs/vfs.h"
  70 #include "src/menu.h"
  71 #include "edit-widget.h"
  72 #include "src/user.h" /* for user_menu_cmd, must be after edit-widget.h */
  73
  74 #    define WANT_WIDGETS
  75
  76 #    define WIDGET_COMMAND (WIDGET_USER + 10)
  77 #    define N_menus 5
  78
  79 #define SEARCH_DIALOG_OPTION_NO_SCANF   1
  80 #define SEARCH_DIALOG_OPTION_NO_REGEX   2
  81 #define SEARCH_DIALOG_OPTION_NO_CASE    4
  82 #define SEARCH_DIALOG_OPTION_BACKWARDS  8
  83 #define SEARCH_DIALOG_OPTION_BOOKMARK   16
  84
  85 #define EDIT_KEY_EMULATION_NORMAL 0
  86 #define EDIT_KEY_EMULATION_EMACS  1
  87
  88 #define REDRAW_LINE          (1 << 0)
  89 #define REDRAW_LINE_ABOVE    (1 << 1)
  90 #define REDRAW_LINE_BELOW    (1 << 2)
  91 #define REDRAW_AFTER_CURSOR  (1 << 3)
  92 #define REDRAW_BEFORE_CURSOR (1 << 4)
  93 #define REDRAW_PAGE          (1 << 5)
  94 #define REDRAW_IN_BOUNDS     (1 << 6)
  95 #define REDRAW_CHAR_ONLY     (1 << 7)
  96 #define REDRAW_COMPLETELY    (1 << 8)
  97
  98 #define MOD_ABNORMAL            (1 << 0)
  99 #define MOD_UNDERLINED          (1 << 1)
 100 #define MOD_BOLD                (1 << 2)
 101 #define MOD_HIGHLIGHTED         (1 << 3)
 102 #define MOD_MARKED              (1 << 4)
 103 #define MOD_ITALIC              (1 << 5)
 104 #define MOD_CURSOR              (1 << 6)
 105 #define MOD_INVERSE             (1 << 7)
 106
 107 #define EDIT_TEXT_HORIZONTAL_OFFSET 0
 108 #define EDIT_TEXT_VERTICAL_OFFSET 1
 109 #define FONT_OFFSET_X 0
 110 #define FONT_OFFSET_Y 0
 111
 112 #define EDIT_RIGHT_EXTREME option_edit_right_extreme
 113 #define EDIT_LEFT_EXTREME option_edit_left_extreme
 114 #define EDIT_TOP_EXTREME option_edit_top_extreme
 115 #define EDIT_BOTTOM_EXTREME option_edit_bottom_extreme
 116
 117 /*there are a maximum of ... */
 118 /*... edit buffers, each of which is ... */
 119 #define EDIT_BUF_SIZE 0x10000
 120 /* ...bytes in size. */
 121
 122 /*x / EDIT_BUF_SIZE equals x >> ... */
 123 #define S_EDIT_BUF_SIZE 16
 124
 125 /* x % EDIT_BUF_SIZE is equal to x && ... */
 126 #define M_EDIT_BUF_SIZE 0xFFFF
 127
 128 #define SIZE_LIMIT (EDIT_BUF_SIZE * (MAXBUFF - 2))
 129 /* Note a 16k stack is 64k of data and enough to hold (usually) around 10
 130    pages of undo info. */
 131
 132 /* undo stack */
 133 #define START_STACK_SIZE 32
 134
 135
 136 /*some codes that may be pushed onto or returned from the undo stack: */
 137 #define CURS_LEFT 601
 138 #define CURS_RIGHT 602
 139 #define DELETE 603
 140 #define BACKSPACE 604
 141 #define STACK_BOTTOM 605
 142 #define CURS_LEFT_LOTS 606
 143 #define CURS_RIGHT_LOTS 607
 144 #define COLUMN_ON 608
 145 #define COLUMN_OFF 609
 146 #define MARK_1 1000
 147 #define MARK_2 700000000
 148 #define KEY_PRESS 1400000000
 149
 150 /*Tabs spaces: (sofar only HALF_TAB_SIZE is used: */
 151 #define TAB_SIZE                option_tab_spacing
 152 #define HALF_TAB_SIZE           ((int) option_tab_spacing / 2)
 153
 154 struct selection {
 155    unsigned char * text;
 156    int len;
 157 };
 158
 159 #define MAX_WORDS_PER_CONTEXT   1024
 160 #define MAX_CONTEXTS            128
 161
 162 struct key_word {
 163     char *keyword;
 164     unsigned char first;
 165     char *whole_word_chars_left;
 166     char *whole_word_chars_right;
 167     time_t time;
 168 #define NO_COLOR 0x7FFFFFFF
 169 #define SPELLING_ERROR 0x7EFEFEFE
 170     int line_start;
 171     int bg;
 172     int fg;
 173 };
 174
 175 struct context_rule {
 176     char *left;
 177     unsigned char first_left;
 178     char *right;
 179     unsigned char first_right;
 180     char line_start_left;
 181     char line_start_right;
 182     int single_char;
 183     int between_delimiters;
 184     char *whole_word_chars_left;
 185     char *whole_word_chars_right;
 186     char *keyword_first_chars;
 187     int spelling;
 188 /* first word is word[1] */
 189     struct key_word **keyword;
 190 };
 191
 192 int edit_drop_hotkey_menu (WEdit * e, int key);
 193 void edit_menu_cmd (WEdit * e);
 194 void edit_init_menu_emacs (void);
 195 void edit_init_menu_normal (void);
 196 void edit_done_menu (void);
 197 int edit_raw_key_query (char *heading, char *query, int cancel);
 198 char *strcasechr (const unsigned char *s, int c);
 199 int edit (const char *_file, int line);
 200 int edit_translate_key (WEdit * edit, unsigned int x_keycode, long x_key, int x_state, int *cmd, int *ch);
 201
 202 #ifndef NO_INLINE_GETBYTE
 203 int edit_get_byte (WEdit * edit, long byte_index);
 204 #else
 205 static inline int edit_get_byte (WEdit * edit, long byte_index)
 206 {
 207     unsigned long p;
 208     if (byte_index >= (edit->curs1 + edit->curs2) || byte_index < 0)
 209         return '\n';
 210
 211     if (byte_index >= edit->curs1) {
 212         p = edit->curs1 + edit->curs2 - byte_index - 1;
 213         return edit->buffers2[p >> S_EDIT_BUF_SIZE][EDIT_BUF_SIZE - (p & M_EDIT_BUF_SIZE) - 1];
 214     } else {
 215         return edit->buffers1[byte_index >> S_EDIT_BUF_SIZE][byte_index & M_EDIT_BUF_SIZE];
 216     }
 217 }
 218 #endif
 219
 220 char *edit_get_buffer_as_text (WEdit * edit);
 221 int edit_count_lines (WEdit * edit, long current, int upto);
 222 long edit_move_forward (WEdit * edit, long current, int lines, long upto);
 223 long edit_move_forward3 (WEdit * edit, long current, int cols, long upto);
 224 long edit_move_backward (WEdit * edit, long current, int lines);
 225 void edit_scroll_screen_over_cursor (WEdit * edit);
 226 void edit_render_keypress (WEdit * edit);
 227 void edit_scroll_upward (WEdit * edit, unsigned long i);
 228 void edit_scroll_downward (WEdit * edit, int i);
 229 void edit_scroll_right (WEdit * edit, int i);
 230 void edit_scroll_left (WEdit * edit, int i);
 231 int edit_get_col (WEdit * edit);
 232 long edit_bol (WEdit * edit, long current);
 233 long edit_eol (WEdit * edit, long current);
 234 void edit_update_curs_row (WEdit * edit);
 235 void edit_update_curs_col (WEdit * edit);
 236
 237 void edit_block_copy_cmd (WEdit * edit);
 238 void edit_block_move_cmd (WEdit * edit);
 239 int edit_block_delete_cmd (WEdit * edit);
 240 int edit_block_delete (WEdit * edit);
 241 void edit_delete_line (WEdit * edit);
 242
 243 int edit_delete (WEdit * edit);
 244 void edit_insert (WEdit * edit, int c);
 245 int edit_cursor_move (WEdit * edit, long increment);
 246 void edit_push_action (WEdit * edit, long c,...);
 247 void edit_push_key_press (WEdit * edit);
 248 void edit_insert_ahead (WEdit * edit, int c);
 249 int edit_save_file (WEdit * edit, const char *filename);
 250 long edit_write_stream (WEdit * edit, FILE * f);
 251 char *edit_get_write_filter (char *writename, const char *filename);
 252 int edit_save_cmd (WEdit * edit);
 253 int edit_save_confirm_cmd (WEdit * edit);
 254 int edit_save_as_cmd (WEdit * edit);
 255 WEdit *edit_init (WEdit * edit, int lines, int columns, const char *filename, const char *text, const char *dir, unsigned long text_size);
 256 int edit_clean (WEdit * edit);
 257 int edit_renew (WEdit * edit);
 258 int edit_new_cmd (WEdit * edit);
 259 int edit_reload (WEdit * edit, const char *filename, const char *text, const char *dir, unsigned long text_size);
 260 int edit_load_cmd (WEdit * edit);
 261 void edit_mark_cmd (WEdit * edit, int unmark);
 262 void edit_set_markers (WEdit * edit, long m1, long m2, int c1, int c2);
 263 void edit_push_markers (WEdit * edit);
 264 void edit_quit_cmd (WEdit * edit);
 265 void edit_replace_cmd (WEdit * edit, int again);
 266 void edit_search_cmd (WEdit * edit, int again);
 267 int edit_save_block (WEdit * edit, const char *filename, long start, long finish);
 268 int edit_save_block_cmd (WEdit * edit);
 269 int edit_insert_file_cmd (WEdit * edit);
 270 int edit_insert_file (WEdit * edit, const char *filename);
 271 void edit_block_process_cmd (WEdit * edit, const char *shell_cmd, int block);
 272 char *catstrs (const char *first,...);
 273 void edit_refresh_cmd (WEdit * edit);
 274 void edit_date_cmd (WEdit * edit);
 275 void edit_goto_cmd (WEdit * edit);
 276 int eval_marks (WEdit * edit, long *start_mark, long *end_mark);
 277 void edit_status (WEdit * edit);
 278 int edit_execute_command (WEdit * edit, int command, int char_for_insertion);
 279 int edit_execute_key_command (WEdit * edit, int command, int char_for_insertion);
 280 void edit_update_screen (WEdit * edit);
 281 int edit_printf (WEdit * e, const char *fmt,...);
 282 int edit_print_string (WEdit * e, const char *s);
 283 void edit_move_to_line (WEdit * e, long line);
 284 void edit_move_display (WEdit * e, long line);
 285 void edit_word_wrap (WEdit * edit);
 286 unsigned char *edit_get_block (WEdit * edit, long start, long finish, int *l);
 287 int edit_sort_cmd (WEdit * edit);
 288 void edit_help_cmd (WEdit * edit);
 289 void edit_left_word_move (WEdit * edit, int s);
 290 void edit_right_word_move (WEdit * edit, int s);
 291 void edit_get_selection (WEdit * edit);
 292
 293 int edit_save_macro_cmd (WEdit * edit, struct macro macro[], int n);
 294 int edit_load_macro_cmd (WEdit * edit, struct macro macro[], int *n, int k);
 295 void edit_delete_macro_cmd (WEdit * edit);
 296
 297 int edit_copy_to_X_buf_cmd (WEdit * edit);
 298 int edit_cut_to_X_buf_cmd (WEdit * edit);
 299 void edit_paste_from_X_buf_cmd (WEdit * edit);
 300
 301 void edit_paste_from_history (WEdit *edit);
 302
 303 void edit_split_filename (WEdit * edit, const char *name);
 304
 305 #define CWidget Widget
 306 void edit_set_syntax_change_callback (void (*callback) (CWidget *));
 307 void edit_load_syntax (WEdit * edit, char **names, char *type);
 308 void edit_free_syntax_rules (WEdit * edit);
 309 void edit_get_syntax_color (WEdit * edit, long byte_index, int *fg, int *bg);
 310 int edit_check_spelling (WEdit * edit);
 311
 312
 313 void book_mark_insert (WEdit * edit, int line, int c);
 314 int book_mark_query_color (WEdit * edit, int line, int c);
 315 int book_mark_query_all (WEdit * edit, int line, int *c);
 316 struct _book_mark *book_mark_find (WEdit * edit, int line);
 317 int book_mark_clear (WEdit * edit, int line, int c);
 318 void book_mark_flush (WEdit * edit, int c);
 319 void book_mark_inc (WEdit * edit, int line);
 320 void book_mark_dec (WEdit * edit, int line);
 321
 322 void user_menu (WEdit *edit);
 323
 324 #define CPushFont(x,y)
 325 #define CPopFont()
 326 #define FIXED_FONT 1
 327
 328 /* put OS2/NT/WIN95 defines here */
 329
 330 #ifdef USE_O_TEXT
 331 #    define MY_O_TEXT O_TEXT
 332 #else
 333 #    define MY_O_TEXT 0
 334 #endif
 335
 336 #define FONT_PIX_PER_LINE 1
 337 #define FONT_MEAN_WIDTH 1
 338
 339 #define get_sys_error(s) (s)
 340 #define open mc_open
 341 #define close(f) mc_close(f)
 342 #define read(f,b,c) mc_read(f,b,c)
 343 #define write(f,b,c) mc_write(f,b,c)
 344 #define stat(f,s) mc_stat(f,s)
 345 #define mkdir(s,m) mc_mkdir(s,m)
 346 #define itoa MY_itoa
 347
 348 #define edit_get_load_file(d,f,h) input_dialog (h, " Enter file name: ", f)
 349 #define edit_get_save_file(d,f,h) input_dialog (h, " Enter file name: ", f)
 350 #define CMalloc(x) malloc(x)
 351
 352 #define set_error_msg(s) edit_init_error_msg = strdup(s)
 353
 354 #ifdef _EDIT_C
 355
 356 #define edit_error_dialog(h,s) set_error_msg(s)
 357 char *edit_init_error_msg = NULL;
 358
 359 #else                           /* ! _EDIT_C */
 360
 361 #define edit_error_dialog(h,s) query_dialog (h, s, 0, 1, _("&Dismiss"))
 362 #define edit_message_dialog(h,s) query_dialog (h, s, 0, 1, _("&Ok"))
 363 extern char *edit_init_error_msg;
 364
 365 #endif                          /* ! _EDIT_C */
 366
 367
 368 #define get_error_msg(s) edit_init_error_msg
 369 #define edit_query_dialog2(h,t,a,b) query_dialog(h,t,0,2,a,b)
 370 #define edit_query_dialog3(h,t,a,b,c) query_dialog(h,t,0,3,a,b,c)
 371 #define edit_query_dialog4(h,t,a,b,c,d) query_dialog(h,t,0,4,a,b,c,d)
 372
 373 #define color_palette(x) win->color[x].pixel
 374
 375 extern char *home_dir;
 376
 377 #define NUM_SELECTION_HISTORY 64
 378
 379 #ifndef MAX_PATH_LEN
 380 #ifdef PATH_MAX
 381 #define MAX_PATH_LEN PATH_MAX
 382 #else
 383 #define MAX_PATH_LEN 1024
 384 #endif
 385 #endif
 386
 387 #ifdef _EDIT_C
 388
 389 struct selection selection =
 390 {0, 0};
 391 int current_selection = 0;
 392 /* Note: selection.text = selection_history[current_selection].text */
 393 struct selection selection_history[NUM_SELECTION_HISTORY] =
 394 {
 395     {0, 0},
 396     {0, 0},
 397     {0, 0},
 398     {0, 0},
 399     {0, 0},
 400     {0, 0},
 401     {0, 0},
 402     {0, 0},
 403     {0, 0},
 404     {0, 0}
 405 };
 406
 407 /*
 408    what editor are we going to emulate? one of EDIT_KEY_EMULATION_NORMAL
 409    or EDIT_KEY_EMULATION_EMACS
 410  */
 411 int edit_key_emulation = EDIT_KEY_EMULATION_NORMAL;
 412
 413 int option_word_wrap_line_length = 72;
 414 int option_typewriter_wrap = 0;
 415 int option_auto_para_formatting = 0;
 416 int option_international_characters = 0;
 417 int option_tab_spacing = 8;
 418 int option_fill_tabs_with_spaces = 0;
 419 int option_return_does_auto_indent = 1;
 420 int option_backspace_through_tabs = 0;
 421 int option_fake_half_tabs = 1;
 422 int option_save_mode = 0;
 423 int option_backup_ext_int = -1;
 424 int option_find_bracket = 1;
 425 int option_max_undo = 32768;
 426
 427 int option_editor_fg_normal = 26;
 428 int option_editor_fg_bold = 8;
 429 int option_editor_fg_italic = 10;
 430
 431 int option_edit_right_extreme = 0;
 432 int option_edit_left_extreme = 0;
 433 int option_edit_top_extreme = 0;
 434 int option_edit_bottom_extreme = 0;
 435
 436 int option_editor_bg_normal = 1;
 437 int option_editor_bg_abnormal = 0;
 438 int option_editor_bg_marked = 2;
 439 int option_editor_bg_marked_abnormal = 9;
 440 int option_editor_bg_highlighted = 12;
 441 int option_editor_fg_cursor = 18;
 442
 443 char *option_whole_chars_search = "0123456789abcdefghijklmnopqrstuvwxyz_";
 444 char *option_chars_move_whole_word = "!=&|<>^~ !:;, !'!`!.?!\"!( !) !Aa0 !+-*/= |<> ![ !] !\\#! ";
 445 char *option_backup_ext = "~";
 446
 447 #else                           /* ! _EDIT_C */
 448
 449 extern struct selection selection;
 450 extern struct selection selection_history[];
 451 extern int current_selection;
 452
 453 /*
 454    what editor are we going to emulate? one of EDIT_KEY_EMULATION_NORMAL
 455    or EDIT_KEY_EMULATION_EMACS
 456  */
 457 extern int edit_key_emulation;
 458 extern WEdit *wedit;
 459
 460 extern int option_word_wrap_line_length;
 461 extern int option_typewriter_wrap;
 462 extern int option_auto_para_formatting;
 463 extern int option_international_characters;
 464 extern int option_tab_spacing;
 465 extern int option_fill_tabs_with_spaces;
 466 extern int option_return_does_auto_indent;
 467 extern int option_backspace_through_tabs;
 468 extern int option_fake_half_tabs;
 469 extern int option_save_mode;
 470 extern int option_backup_ext_int;
 471 extern int option_find_bracket;
 472 extern int option_max_undo;
 473
 474 extern int option_editor_fg_normal;
 475 extern int option_editor_fg_bold;
 476 extern int option_editor_fg_italic;
 477
 478 extern int option_edit_right_extreme;
 479 extern int option_edit_left_extreme;
 480 extern int option_edit_top_extreme;
 481 extern int option_edit_bottom_extreme;
 482
 483 extern int option_editor_bg_normal;
 484 extern int option_editor_bg_abnormal;
 485 extern int option_editor_bg_marked;
 486 extern int option_editor_bg_marked_abnormal;
 487 extern int option_editor_bg_highlighted;
 488 extern int option_editor_fg_cursor;
 489
 490 extern char *option_whole_chars_search;
 491 extern char *option_chars_move_whole_word;
 492 extern char *option_backup_ext;
 493
 494 extern int edit_confirm_save;
 495
 496 #endif                          /* ! _EDIT_C */
 497 #endif                          /* __EDIT_H */