2 Editor low level data handling and cursor fundamentals.
4 Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006,
5 2007, 2008, 2009, 2010, 2011, 2012
6 The Free Software Foundation, Inc.
10 Ilia Maslakov <il.smind@gmail.com> 2009, 2010, 2011
11 Andrew Borodin <aborodin@vmail.ru> 2012.
13 This file is part of the Midnight Commander.
15 The Midnight Commander is free software: you can redistribute it
16 and/or modify it under the terms of the GNU General Public License as
17 published by the Free Software Foundation, either version 3 of the License,
18 or (at your option) any later version.
20 The Midnight Commander is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program. If not, see <http://www.gnu.org/licenses/>.
30 * \brief Source: editor low level data handling and cursor fundamentals
38 #include <sys/types.h>
47 #include "lib/global.h"
49 #include "lib/tty/color.h"
50 #include "lib/tty/tty.h" /* attrset() */
51 #include "lib/tty/key.h" /* is_idle() */
52 #include "lib/skin.h" /* EDITOR_NORMAL_COLOR */
53 #include "lib/vfs/vfs.h"
54 #include "lib/strutil.h" /* utf string functions */
55 #include "lib/util.h" /* load_file_position(), save_file_position() */
56 #include "lib/timefmt.h" /* time formatting */
58 #include "lib/widget.h"
61 #include "lib/charsets.h" /* get_codepage_id */
64 #include "src/filemanager/usermenu.h" /* user_menu_cmd() */
66 #include "src/setup.h" /* option_tab_spacing */
67 #include "src/main.h" /* macro_index */
68 #include "src/learn.h" /* learn_keys */
69 #include "src/keybind-defaults.h"
71 #include "edit-impl.h"
72 #include "editwidget.h"
74 /*** global variables ****************************************************************************/
76 int option_word_wrap_line_length
= DEFAULT_WRAP_LINE_LENGTH
;
77 int option_typewriter_wrap
= 0;
78 int option_auto_para_formatting
= 0;
79 int option_fill_tabs_with_spaces
= 0;
80 int option_return_does_auto_indent
= 1;
81 int option_backspace_through_tabs
= 0;
82 int option_fake_half_tabs
= 1;
83 int option_save_mode
= EDIT_QUICK_SAVE
;
84 int option_save_position
= 1;
85 int option_max_undo
= 32768;
86 int option_persistent_selections
= 1;
87 int option_cursor_beyond_eol
= 0;
88 int option_line_state
= 0;
89 int option_line_state_width
= 0;
91 int option_edit_right_extreme
= 0;
92 int option_edit_left_extreme
= 0;
93 int option_edit_top_extreme
= 0;
94 int option_edit_bottom_extreme
= 0;
95 int enable_show_tabs_tws
= 1;
96 int option_check_nl_at_eof
= 0;
97 int option_group_undo
= 0;
98 int show_right_margin
= 0;
100 const char *option_whole_chars_search
= "0123456789abcdefghijklmnopqrstuvwxyz_";
101 char *option_backup_ext
= NULL
;
103 int edit_stack_iterator
= 0;
104 edit_stack_type edit_history_moveto
[MAX_HISTORY_MOVETO
];
105 /* magic sequense for say than block is vertical */
106 const char VERTICAL_MAGIC
[] = { '\1', '\1', '\1', '\1', '\n' };
108 /*** file scope macro definitions ****************************************************************/
110 #define TEMP_BUF_LEN 1024
112 #define space_width 1
114 /*** file scope type declarations ****************************************************************/
116 /*** file scope variables ************************************************************************/
118 /* detecting an error on save is easy: just check if every byte has been written. */
119 /* detecting an error on read, is not so easy 'cos there is not way to tell
120 whether you read everything or not. */
121 /* FIXME: add proper `triple_pipe_open' to read, write and check errors. */
122 static const struct edit_filters
124 const char *read
, *write
, *extension
;
128 { "xz -cd %s 2>&1", "xz > %s", ".xz"},
129 { "lzma -cd %s 2>&1", "lzma > %s", ".lzma" },
130 { "bzip2 -cd %s 2>&1", "bzip2 > %s", ".bz2" },
131 { "gzip -cd %s 2>&1", "gzip > %s", ".gz" },
132 { "gzip -cd %s 2>&1", "gzip > %s", ".Z" }
136 static long last_bracket
= -1;
138 /*** file scope functions ************************************************************************/
139 /* --------------------------------------------------------------------------------------------- */
143 * here's a quick sketch of the layout: (don't run this through indent.)
145 * (b1 is buffers1 and b2 is buffers2)
148 * \0\0\0\0\0m e _ f i l e . \nf i n . \n|T h i s _ i s _ s o\0\0\0\0\0\0\0\0\0
149 * ______________________________________|______________________________________
151 * ... | b2[2] | b2[1] | b2[0] | b1[0] | b1[1] | b1[2] | ...
152 * |-> |-> |-> |-> |-> |-> |
154 * _<------------------------->|<----------------->_
155 * WEdit->curs2 | WEdit->curs1
160 * file end|||file beginning
169 /* --------------------------------------------------------------------------------------------- */
171 static int left_of_four_spaces (WEdit
* edit
);
173 /* --------------------------------------------------------------------------------------------- */
175 * Initialize the buffers for an empty files.
179 edit_init_buffers (WEdit
* edit
)
183 for (j
= 0; j
<= MAXBUFF
; j
++)
185 edit
->buffers1
[j
] = NULL
;
186 edit
->buffers2
[j
] = NULL
;
191 edit
->buffers2
[0] = g_malloc0 (EDIT_BUF_SIZE
);
194 /* --------------------------------------------------------------------------------------------- */
197 * Load file OR text into buffers. Set cursor to the beginning of file.
199 * @returns FALSE on error.
203 edit_load_file_fast (WEdit
* edit
, const vfs_path_t
* filename_vpath
)
207 gboolean ret
= FALSE
;
209 edit
->curs2
= edit
->last_byte
;
210 buf2
= edit
->curs2
>> S_EDIT_BUF_SIZE
;
212 file
= mc_open (filename_vpath
, O_RDONLY
| O_BINARY
);
215 gchar
*errmsg
, *filename
;
217 filename
= vfs_path_to_str (filename_vpath
);
218 errmsg
= g_strdup_printf (_("Cannot open %s for reading"), filename
);
220 edit_error_dialog (_("Error"), errmsg
);
225 if (!edit
->buffers2
[buf2
])
226 edit
->buffers2
[buf2
] = g_malloc0 (EDIT_BUF_SIZE
);
231 (char *) edit
->buffers2
[buf2
] + EDIT_BUF_SIZE
-
232 (edit
->curs2
& M_EDIT_BUF_SIZE
), edit
->curs2
& M_EDIT_BUF_SIZE
) < 0)
235 for (buf
= buf2
- 1; buf
>= 0; buf
--)
237 /* edit->buffers2[0] is already allocated */
238 if (!edit
->buffers2
[buf
])
239 edit
->buffers2
[buf
] = g_malloc0 (EDIT_BUF_SIZE
);
240 if (mc_read (file
, (char *) edit
->buffers2
[buf
], EDIT_BUF_SIZE
) < 0)
249 gchar
*errmsg
, *filename
;
251 filename
= vfs_path_to_str (filename_vpath
);
252 errmsg
= g_strdup_printf (_("Error reading %s"), filename
);
254 edit_error_dialog (_("Error"), errmsg
);
261 /* --------------------------------------------------------------------------------------------- */
262 /** Return index of the filter or -1 is there is no appropriate filter */
265 edit_find_filter (const vfs_path_t
* filename_vpath
)
270 if (filename_vpath
== NULL
)
273 filename
= vfs_path_to_str (filename_vpath
);
274 l
= strlen (filename
);
275 for (i
= 0; i
< sizeof (all_filters
) / sizeof (all_filters
[0]); i
++)
277 e
= strlen (all_filters
[i
].extension
);
279 if (!strcmp (all_filters
[i
].extension
, filename
+ l
- e
))
289 /* --------------------------------------------------------------------------------------------- */
292 edit_get_filter (const vfs_path_t
* filename_vpath
)
295 char *p
, *quoted_name
, *filename
;
297 i
= edit_find_filter (filename_vpath
);
301 filename
= vfs_path_to_str (filename_vpath
);
302 quoted_name
= name_quote (filename
, 0);
304 p
= g_strdup_printf (all_filters
[i
].read
, quoted_name
);
305 g_free (quoted_name
);
309 /* --------------------------------------------------------------------------------------------- */
312 edit_insert_stream (WEdit
* edit
, FILE * f
)
316 while ((c
= fgetc (f
)) >= 0)
318 edit_insert (edit
, c
);
324 /* --------------------------------------------------------------------------------------------- */
326 * Open file and create it if necessary.
328 * @param edit editor object
329 * @param filename_vpath file name
330 * @param st buffer for store stat info
331 * @returns TRUE for success, FALSE for error.
335 check_file_access (WEdit
* edit
, const vfs_path_t
* filename_vpath
, struct stat
*st
)
338 gchar
*errmsg
= NULL
;
340 /* Try opening an existing file */
341 file
= mc_open (filename_vpath
, O_NONBLOCK
| O_RDONLY
| O_BINARY
, 0666);
345 * Try creating the file. O_EXCL prevents following broken links
346 * and opening existing files.
348 file
= mc_open (filename_vpath
, O_NONBLOCK
| O_RDONLY
| O_BINARY
| O_CREAT
| O_EXCL
, 0666);
353 filename
= vfs_path_to_str (filename_vpath
);
354 errmsg
= g_strdup_printf (_("Cannot open %s for reading"), filename
);
359 /* New file, delete it if it's not modified or saved */
360 edit
->delete_file
= 1;
363 /* Check what we have opened */
364 if (mc_fstat (file
, st
) < 0)
368 filename
= vfs_path_to_str (filename_vpath
);
369 errmsg
= g_strdup_printf (_("Cannot get size/permissions for %s"), filename
);
374 /* We want to open regular files only */
375 if (!S_ISREG (st
->st_mode
))
379 filename
= vfs_path_to_str (filename_vpath
);
380 errmsg
= g_strdup_printf (_("\"%s\" is not a regular file"), filename
);
386 * Don't delete non-empty files.
387 * O_EXCL should prevent it, but let's be on the safe side.
390 edit
->delete_file
= 0;
392 if (st
->st_size
>= SIZE_LIMIT
)
396 filename
= vfs_path_to_str (filename_vpath
);
397 errmsg
= g_strdup_printf (_("File \"%s\" is too large"), filename
);
402 (void) mc_close (file
);
406 edit_error_dialog (_("Error"), errmsg
);
413 /* --------------------------------------------------------------------------------------------- */
416 * Open the file and load it into the buffers, either directly or using
417 * a filter. Return TRUE on success, FALSE on error.
419 * Fast loading (edit_load_file_fast) is used when the file size is
420 * known. In this case the data is read into the buffers by blocks.
421 * If the file size is not known, the data is loaded byte by byte in
424 * @param edit editor object
425 * @return TRUE if file was successfully opened and loaded to buffers, FALSE otherwise
428 edit_load_file (WEdit
* edit
)
430 gboolean fast_load
= TRUE
;
432 /* Cannot do fast load if a filter is used */
433 if (edit_find_filter (edit
->filename_vpath
) >= 0)
437 * FIXME: line end translation should disable fast loading as well
438 * Consider doing fseek() to the end and ftell() for the real size.
440 if (edit
->filename_vpath
!= NULL
)
443 * VFS may report file size incorrectly, and slow load is not a big
444 * deal considering overhead in VFS.
446 if (!vfs_file_is_local (edit
->filename_vpath
))
449 /* If we are dealing with a real file, check that it exists */
450 if (!check_file_access (edit
, edit
->filename_vpath
, &edit
->stat1
))
458 /* nothing to load */
462 edit_init_buffers (edit
);
466 edit
->last_byte
= edit
->stat1
.st_size
;
467 edit_load_file_fast (edit
, edit
->filename_vpath
);
468 /* If fast load was used, the number of lines wasn't calculated */
469 edit
->total_lines
= edit_count_lines (edit
, 0, edit
->last_byte
);
474 if (edit
->filename_vpath
!= NULL
475 && *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) != '\0')
477 edit
->undo_stack_disable
= 1;
478 if (edit_insert_file (edit
, edit
->filename_vpath
) < 0)
483 edit
->undo_stack_disable
= 0;
490 /* --------------------------------------------------------------------------------------------- */
491 /** Restore saved cursor position in the file */
494 edit_load_position (WEdit
* edit
)
499 if (edit
->filename_vpath
== NULL
500 || *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) == '\0')
503 load_file_position (edit
->filename_vpath
, &line
, &column
, &offset
, &edit
->serialized_bookmarks
);
507 edit_move_to_line (edit
, line
- 1);
508 edit
->prev_col
= column
;
512 edit_cursor_move (edit
, offset
);
513 line
= edit
->curs_line
;
514 edit
->search_start
= edit
->curs1
;
517 book_mark_restore (edit
, BOOK_MARK_COLOR
);
519 edit_move_to_prev_col (edit
, edit_bol (edit
, edit
->curs1
));
520 edit_move_display (edit
, line
- (edit
->widget
.lines
/ 2));
523 /* --------------------------------------------------------------------------------------------- */
524 /** Save cursor position in the file */
527 edit_save_position (WEdit
* edit
)
529 if (edit
->filename_vpath
== NULL
530 || *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) == '\0')
533 book_mark_serialize (edit
, BOOK_MARK_COLOR
);
534 save_file_position (edit
->filename_vpath
, edit
->curs_line
+ 1, edit
->curs_col
, edit
->curs1
,
535 edit
->serialized_bookmarks
);
536 edit
->serialized_bookmarks
= NULL
;
539 /* --------------------------------------------------------------------------------------------- */
540 /** Clean the WEdit stricture except the widget part */
543 edit_purge_widget (WEdit
* edit
)
545 size_t len
= sizeof (WEdit
) - sizeof (Widget
);
546 char *start
= (char *) edit
+ sizeof (Widget
);
547 memset (start
, 0, len
);
550 /* --------------------------------------------------------------------------------------------- */
553 TODO: if the user undos until the stack bottom, and the stack has not wrapped,
554 then the file should be as it was when he loaded up. Then set edit->modified to 0.
558 edit_pop_undo_action (WEdit
* edit
)
561 unsigned long sp
= edit
->undo_stack_pointer
;
563 if (sp
== edit
->undo_stack_bottom
)
566 sp
= (sp
- 1) & edit
->undo_stack_size_mask
;
567 c
= edit
->undo_stack
[sp
];
570 /* edit->undo_stack[sp] = '@'; */
571 edit
->undo_stack_pointer
= (edit
->undo_stack_pointer
- 1) & edit
->undo_stack_size_mask
;
575 if (sp
== edit
->undo_stack_bottom
)
578 c
= edit
->undo_stack
[(sp
- 1) & edit
->undo_stack_size_mask
];
579 if (edit
->undo_stack
[sp
] == -2)
581 /* edit->undo_stack[sp] = '@'; */
582 edit
->undo_stack_pointer
= sp
;
585 edit
->undo_stack
[sp
]++;
591 edit_pop_redo_action (WEdit
* edit
)
594 unsigned long sp
= edit
->redo_stack_pointer
;
596 if (sp
== edit
->redo_stack_bottom
)
599 sp
= (sp
- 1) & edit
->redo_stack_size_mask
;
600 c
= edit
->redo_stack
[sp
];
603 edit
->redo_stack_pointer
= (edit
->redo_stack_pointer
- 1) & edit
->redo_stack_size_mask
;
607 if (sp
== edit
->redo_stack_bottom
)
610 c
= edit
->redo_stack
[(sp
- 1) & edit
->redo_stack_size_mask
];
611 if (edit
->redo_stack
[sp
] == -2)
612 edit
->redo_stack_pointer
= sp
;
614 edit
->redo_stack
[sp
]++;
620 get_prev_undo_action (WEdit
* edit
)
623 unsigned long sp
= edit
->undo_stack_pointer
;
625 if (sp
== edit
->undo_stack_bottom
)
628 sp
= (sp
- 1) & edit
->undo_stack_size_mask
;
629 c
= edit
->undo_stack
[sp
];
633 if (sp
== edit
->undo_stack_bottom
)
636 c
= edit
->undo_stack
[(sp
- 1) & edit
->undo_stack_size_mask
];
640 /* --------------------------------------------------------------------------------------------- */
641 /** is called whenever a modification is made by one of the four routines below */
644 edit_modification (WEdit
* edit
)
646 edit
->caches_valid
= 0;
648 /* raise lock when file modified */
649 if (!edit
->modified
&& !edit
->delete_file
)
650 edit
->locked
= lock_file (edit
->filename_vpath
);
654 /* --------------------------------------------------------------------------------------------- */
657 edit_get_byte_ptr (WEdit
* edit
, long byte_index
)
659 if (byte_index
>= (edit
->curs1
+ edit
->curs2
) || byte_index
< 0)
662 if (byte_index
>= edit
->curs1
)
666 p
= edit
->curs1
+ edit
->curs2
- byte_index
- 1;
667 return (char *) (edit
->buffers2
[p
>> S_EDIT_BUF_SIZE
] +
668 (EDIT_BUF_SIZE
- (p
& M_EDIT_BUF_SIZE
) - 1));
671 return (char *) (edit
->buffers1
[byte_index
>> S_EDIT_BUF_SIZE
] +
672 (byte_index
& M_EDIT_BUF_SIZE
));
675 /* --------------------------------------------------------------------------------------------- */
678 edit_get_prev_utf (WEdit
* edit
, long byte_index
, int *char_width
)
681 gchar utf8_buf
[3 * UTF8_CHAR_LEN
+ 1];
683 gchar
*cursor_buf_ptr
;
685 if (byte_index
> (edit
->curs1
+ edit
->curs2
) || byte_index
<= 0)
691 for (i
= 0; i
< (3 * UTF8_CHAR_LEN
); i
++)
692 utf8_buf
[i
] = edit_get_byte (edit
, byte_index
+ i
- (2 * UTF8_CHAR_LEN
));
693 utf8_buf
[3 * UTF8_CHAR_LEN
] = '\0';
695 cursor_buf_ptr
= utf8_buf
+ (2 * UTF8_CHAR_LEN
);
696 str
= g_utf8_find_prev_char (utf8_buf
, cursor_buf_ptr
);
698 if (str
== NULL
|| g_utf8_next_char (str
) != cursor_buf_ptr
)
701 return *(cursor_buf_ptr
- 1);
705 res
= g_utf8_get_char_validated (str
, -1);
710 return *(cursor_buf_ptr
- 1);
714 *char_width
= cursor_buf_ptr
- str
;
720 /* --------------------------------------------------------------------------------------------- */
723 edit_backspace (WEdit
* edit
, const int byte_delete
)
734 if (edit
->mark2
!= edit
->mark1
)
735 edit_push_markers (edit
);
737 if (edit
->utf8
&& byte_delete
== 0)
739 edit_get_prev_utf (edit
, edit
->curs1
, &cw
);
743 for (i
= 1; i
<= cw
; i
++)
745 if (edit
->mark1
>= edit
->curs1
)
748 edit
->end_mark_curs
--;
750 if (edit
->mark2
>= edit
->curs1
)
752 if (edit
->last_get_rule
>= edit
->curs1
)
753 edit
->last_get_rule
--;
755 p
= *(edit
->buffers1
[(edit
->curs1
- 1) >> S_EDIT_BUF_SIZE
] +
756 ((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
));
757 if (!((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
))
759 g_free (edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
]);
760 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = NULL
;
764 edit_push_undo_action (edit
, p
);
766 edit_modification (edit
);
770 book_mark_dec (edit
, edit
->curs_line
);
773 edit
->force
|= REDRAW_AFTER_CURSOR
;
776 if (edit
->curs1
< edit
->start_display
)
778 edit
->start_display
--;
786 /* --------------------------------------------------------------------------------------------- */
787 /* high level cursor movement commands */
788 /* --------------------------------------------------------------------------------------------- */
791 is_in_indent (WEdit
* edit
)
793 long p
= edit_bol (edit
, edit
->curs1
);
794 while (p
< edit
->curs1
)
795 if (!strchr (" \t", edit_get_byte (edit
, p
++)))
800 /* --------------------------------------------------------------------------------------------- */
803 is_blank (WEdit
* edit
, long offset
)
807 s
= edit_bol (edit
, offset
);
808 f
= edit_eol (edit
, offset
) - 1;
811 c
= edit_get_byte (edit
, s
++);
819 /* --------------------------------------------------------------------------------------------- */
820 /** returns the offset of line i */
823 edit_find_line (WEdit
* edit
, int line
)
827 if (!edit
->caches_valid
)
829 for (i
= 0; i
< N_LINE_CACHES
; i
++)
830 edit
->line_numbers
[i
] = edit
->line_offsets
[i
] = 0;
831 /* three offsets that we *know* are line 0 at 0 and these two: */
832 edit
->line_numbers
[1] = edit
->curs_line
;
833 edit
->line_offsets
[1] = edit_bol (edit
, edit
->curs1
);
834 edit
->line_numbers
[2] = edit
->total_lines
;
835 edit
->line_offsets
[2] = edit_bol (edit
, edit
->last_byte
);
836 edit
->caches_valid
= 1;
838 if (line
>= edit
->total_lines
)
839 return edit
->line_offsets
[2];
842 /* find the closest known point */
843 for (i
= 0; i
< N_LINE_CACHES
; i
++)
846 n
= abs (edit
->line_numbers
[i
] - line
);
854 return edit
->line_offsets
[j
]; /* know the offset exactly */
855 if (m
== 1 && j
>= 3)
856 i
= j
; /* one line different - caller might be looping, so stay in this cache */
858 i
= 3 + (rand () % (N_LINE_CACHES
- 3));
859 if (line
> edit
->line_numbers
[j
])
860 edit
->line_offsets
[i
] =
861 edit_move_forward (edit
, edit
->line_offsets
[j
], line
- edit
->line_numbers
[j
], 0);
863 edit
->line_offsets
[i
] =
864 edit_move_backward (edit
, edit
->line_offsets
[j
], edit
->line_numbers
[j
] - line
);
865 edit
->line_numbers
[i
] = line
;
866 return edit
->line_offsets
[i
];
869 /* --------------------------------------------------------------------------------------------- */
870 /** moves up until a blank line is reached, or until just
871 before a non-blank line is reached */
874 edit_move_up_paragraph (WEdit
* edit
, int do_scroll
)
877 if (edit
->curs_line
> 1)
879 if (line_is_blank (edit
, edit
->curs_line
))
881 if (line_is_blank (edit
, edit
->curs_line
- 1))
883 for (i
= edit
->curs_line
- 1; i
; i
--)
884 if (!line_is_blank (edit
, i
))
892 for (i
= edit
->curs_line
- 1; i
; i
--)
893 if (line_is_blank (edit
, i
))
899 for (i
= edit
->curs_line
- 1; i
; i
--)
900 if (line_is_blank (edit
, i
))
904 edit_move_up (edit
, edit
->curs_line
- i
, do_scroll
);
907 /* --------------------------------------------------------------------------------------------- */
908 /** moves down until a blank line is reached, or until just
909 before a non-blank line is reached */
912 edit_move_down_paragraph (WEdit
* edit
, int do_scroll
)
915 if (edit
->curs_line
>= edit
->total_lines
- 1)
917 i
= edit
->total_lines
;
921 if (line_is_blank (edit
, edit
->curs_line
))
923 if (line_is_blank (edit
, edit
->curs_line
+ 1))
925 for (i
= edit
->curs_line
+ 1; i
; i
++)
926 if (!line_is_blank (edit
, i
) || i
> edit
->total_lines
)
934 for (i
= edit
->curs_line
+ 1; i
; i
++)
935 if (line_is_blank (edit
, i
) || i
>= edit
->total_lines
)
941 for (i
= edit
->curs_line
+ 1; i
; i
++)
942 if (line_is_blank (edit
, i
) || i
>= edit
->total_lines
)
946 edit_move_down (edit
, i
- edit
->curs_line
, do_scroll
);
949 /* --------------------------------------------------------------------------------------------- */
952 edit_begin_page (WEdit
* edit
)
954 edit_update_curs_row (edit
);
955 edit_move_up (edit
, edit
->curs_row
, 0);
958 /* --------------------------------------------------------------------------------------------- */
961 edit_end_page (WEdit
* edit
)
963 edit_update_curs_row (edit
);
964 edit_move_down (edit
, edit
->widget
.lines
- edit
->curs_row
- 1, 0);
968 /* --------------------------------------------------------------------------------------------- */
969 /** goto beginning of text */
972 edit_move_to_top (WEdit
* edit
)
976 edit_cursor_move (edit
, -edit
->curs1
);
977 edit_move_to_prev_col (edit
, 0);
978 edit
->force
|= REDRAW_PAGE
;
979 edit
->search_start
= 0;
980 edit_update_curs_row (edit
);
985 /* --------------------------------------------------------------------------------------------- */
986 /** goto end of text */
989 edit_move_to_bottom (WEdit
* edit
)
991 if (edit
->curs_line
< edit
->total_lines
)
993 edit_move_down (edit
, edit
->total_lines
- edit
->curs_row
, 0);
994 edit
->start_display
= edit
->last_byte
;
995 edit
->start_line
= edit
->total_lines
;
996 edit_scroll_upward (edit
, edit
->widget
.lines
- 1);
997 edit
->force
|= REDRAW_PAGE
;
1001 /* --------------------------------------------------------------------------------------------- */
1002 /** goto beginning of line */
1005 edit_cursor_to_bol (WEdit
* edit
)
1007 edit_cursor_move (edit
, edit_bol (edit
, edit
->curs1
) - edit
->curs1
);
1008 edit
->search_start
= edit
->curs1
;
1009 edit
->prev_col
= edit_get_col (edit
);
1013 /* --------------------------------------------------------------------------------------------- */
1014 /** goto end of line */
1017 edit_cursor_to_eol (WEdit
* edit
)
1019 edit_cursor_move (edit
, edit_eol (edit
, edit
->curs1
) - edit
->curs1
);
1020 edit
->search_start
= edit
->curs1
;
1021 edit
->prev_col
= edit_get_col (edit
);
1025 /* --------------------------------------------------------------------------------------------- */
1027 static unsigned long
1032 const char option_chars_move_whole_word
[] =
1033 "!=&|<>^~ !:;, !'!`!.?!\"!( !) !{ !} !Aa0 !+-*/= |<> ![ !] !\\#! ";
1039 if (*option_chars_move_whole_word
== '!')
1041 return 0x80000000UL
;
1043 if (g_ascii_isupper ((gchar
) c
))
1045 else if (g_ascii_islower ((gchar
) c
))
1047 else if (g_ascii_isalpha (c
))
1049 else if (isdigit (c
))
1051 else if (isspace (c
))
1053 q
= strchr (option_chars_move_whole_word
, c
);
1055 return 0xFFFFFFFFUL
;
1058 for (x
= 1, p
= option_chars_move_whole_word
; p
< q
; p
++)
1063 while ((q
= strchr (q
+ 1, c
)));
1067 /* --------------------------------------------------------------------------------------------- */
1070 edit_left_word_move (WEdit
* edit
, int s
)
1075 if (edit
->column_highlight
1076 && edit
->mark1
!= edit
->mark2
1077 && edit
->over_col
== 0 && edit
->curs1
== edit_bol (edit
, edit
->curs1
))
1079 edit_cursor_move (edit
, -1);
1082 c1
= edit_get_byte (edit
, edit
->curs1
- 1);
1083 c2
= edit_get_byte (edit
, edit
->curs1
);
1084 if (c1
== '\n' || c2
== '\n')
1086 if (!(my_type_of (c1
) & my_type_of (c2
)))
1088 if (isspace (c1
) && !isspace (c2
))
1091 if (!isspace (c1
) && isspace (c2
))
1096 /* --------------------------------------------------------------------------------------------- */
1099 edit_left_word_move_cmd (WEdit
* edit
)
1101 edit_left_word_move (edit
, 0);
1102 edit
->force
|= REDRAW_PAGE
;
1105 /* --------------------------------------------------------------------------------------------- */
1108 edit_right_word_move (WEdit
* edit
, int s
)
1113 if (edit
->column_highlight
1114 && edit
->mark1
!= edit
->mark2
1115 && edit
->over_col
== 0 && edit
->curs1
== edit_eol (edit
, edit
->curs1
))
1117 edit_cursor_move (edit
, 1);
1118 if (edit
->curs1
>= edit
->last_byte
)
1120 c1
= edit_get_byte (edit
, edit
->curs1
- 1);
1121 c2
= edit_get_byte (edit
, edit
->curs1
);
1122 if (c1
== '\n' || c2
== '\n')
1124 if (!(my_type_of (c1
) & my_type_of (c2
)))
1126 if (isspace (c1
) && !isspace (c2
))
1129 if (!isspace (c1
) && isspace (c2
))
1134 /* --------------------------------------------------------------------------------------------- */
1137 edit_right_word_move_cmd (WEdit
* edit
)
1139 edit_right_word_move (edit
, 0);
1140 edit
->force
|= REDRAW_PAGE
;
1143 /* --------------------------------------------------------------------------------------------- */
1146 edit_right_char_move_cmd (WEdit
* edit
)
1152 c
= edit_get_utf (edit
, edit
->curs1
, &cw
);
1158 c
= edit_get_byte (edit
, edit
->curs1
);
1160 if (option_cursor_beyond_eol
&& c
== '\n')
1166 edit_cursor_move (edit
, cw
);
1170 /* --------------------------------------------------------------------------------------------- */
1173 edit_left_char_move_cmd (WEdit
* edit
)
1176 if (edit
->column_highlight
1177 && option_cursor_beyond_eol
1178 && edit
->mark1
!= edit
->mark2
1179 && edit
->over_col
== 0 && edit
->curs1
== edit_bol (edit
, edit
->curs1
))
1183 edit_get_prev_utf (edit
, edit
->curs1
, &cw
);
1187 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
1193 edit_cursor_move (edit
, -cw
);
1197 /* --------------------------------------------------------------------------------------------- */
1198 /** Up or down cursor moving.
1199 direction = TRUE - move up
1204 edit_move_updown (WEdit
* edit
, unsigned long i
, int do_scroll
, gboolean direction
)
1207 unsigned long l
= (direction
) ? edit
->curs_line
: edit
->total_lines
- edit
->curs_line
;
1216 edit
->force
|= REDRAW_PAGE
;
1220 edit_scroll_upward (edit
, i
);
1222 edit_scroll_downward (edit
, i
);
1224 p
= edit_bol (edit
, edit
->curs1
);
1226 p
= (direction
) ? edit_move_backward (edit
, p
, i
) : edit_move_forward (edit
, p
, i
, 0);
1228 edit_cursor_move (edit
, p
- edit
->curs1
);
1230 edit_move_to_prev_col (edit
, p
);
1232 /* search start of current multibyte char (like CJK) */
1233 if (edit
->curs1
+ 1 < edit
->last_byte
)
1235 edit_right_char_move_cmd (edit
);
1236 edit_left_char_move_cmd (edit
);
1239 edit
->search_start
= edit
->curs1
;
1240 edit
->found_len
= 0;
1243 /* --------------------------------------------------------------------------------------------- */
1246 edit_right_delete_word (WEdit
* edit
)
1251 if (edit
->curs1
>= edit
->last_byte
)
1253 c1
= edit_delete (edit
, 1);
1254 c2
= edit_get_byte (edit
, edit
->curs1
);
1255 if (c1
== '\n' || c2
== '\n')
1257 if ((isspace (c1
) == 0) != (isspace (c2
) == 0))
1259 if (!(my_type_of (c1
) & my_type_of (c2
)))
1264 /* --------------------------------------------------------------------------------------------- */
1267 edit_left_delete_word (WEdit
* edit
)
1272 if (edit
->curs1
<= 0)
1274 c1
= edit_backspace (edit
, 1);
1275 c2
= edit_get_byte (edit
, edit
->curs1
- 1);
1276 if (c1
== '\n' || c2
== '\n')
1278 if ((isspace (c1
) == 0) != (isspace (c2
) == 0))
1280 if (!(my_type_of (c1
) & my_type_of (c2
)))
1285 /* --------------------------------------------------------------------------------------------- */
1287 the start column position is not recorded, and hence does not
1288 undo as it happed. But who would notice.
1292 edit_do_undo (WEdit
* edit
)
1297 edit
->undo_stack_disable
= 1; /* don't record undo's onto undo stack! */
1299 while ((ac
= edit_pop_undo_action (edit
)) < KEY_PRESS
)
1306 edit_cursor_move (edit
, 1);
1309 edit_cursor_move (edit
, -1);
1313 edit_backspace (edit
, 1);
1317 edit_delete (edit
, 1);
1320 edit
->column_highlight
= 1;
1323 edit
->column_highlight
= 0;
1326 if (ac
>= 256 && ac
< 512)
1327 edit_insert_ahead (edit
, ac
- 256);
1328 if (ac
>= 0 && ac
< 256)
1329 edit_insert (edit
, ac
);
1331 if (ac
>= MARK_1
- 2 && ac
< MARK_2
- 2)
1333 edit
->mark1
= ac
- MARK_1
;
1334 edit
->column1
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark1
), 0, edit
->mark1
);
1336 if (ac
>= MARK_2
- 2 && ac
< MARK_CURS
- 2)
1338 edit
->mark2
= ac
- MARK_2
;
1339 edit
->column2
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark2
), 0, edit
->mark2
);
1341 else if (ac
>= MARK_CURS
- 2 && ac
< KEY_PRESS
)
1343 edit
->end_mark_curs
= ac
- MARK_CURS
;
1346 edit
->force
|= REDRAW_PAGE
; /* more than one pop usually means something big */
1349 if (edit
->start_display
> ac
- KEY_PRESS
)
1351 edit
->start_line
-= edit_count_lines (edit
, ac
- KEY_PRESS
, edit
->start_display
);
1352 edit
->force
|= REDRAW_PAGE
;
1354 else if (edit
->start_display
< ac
- KEY_PRESS
)
1356 edit
->start_line
+= edit_count_lines (edit
, edit
->start_display
, ac
- KEY_PRESS
);
1357 edit
->force
|= REDRAW_PAGE
;
1359 edit
->start_display
= ac
- KEY_PRESS
; /* see push and pop above */
1360 edit_update_curs_row (edit
);
1363 edit
->undo_stack_disable
= 0;
1367 edit_do_redo (WEdit
* edit
)
1372 if (edit
->redo_stack_reset
)
1376 while ((ac
= edit_pop_redo_action (edit
)) < KEY_PRESS
)
1383 edit_cursor_move (edit
, 1);
1386 edit_cursor_move (edit
, -1);
1389 edit_backspace (edit
, 1);
1392 edit_delete (edit
, 1);
1395 edit
->column_highlight
= 1;
1398 edit
->column_highlight
= 0;
1401 if (ac
>= 256 && ac
< 512)
1402 edit_insert_ahead (edit
, ac
- 256);
1403 if (ac
>= 0 && ac
< 256)
1404 edit_insert (edit
, ac
);
1406 if (ac
>= MARK_1
- 2 && ac
< MARK_2
- 2)
1408 edit
->mark1
= ac
- MARK_1
;
1409 edit
->column1
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark1
), 0, edit
->mark1
);
1411 else if (ac
>= MARK_2
- 2 && ac
< KEY_PRESS
)
1413 edit
->mark2
= ac
- MARK_2
;
1414 edit
->column2
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark2
), 0, edit
->mark2
);
1416 /* more than one pop usually means something big */
1418 edit
->force
|= REDRAW_PAGE
;
1421 if (edit
->start_display
> ac
- KEY_PRESS
)
1423 edit
->start_line
-= edit_count_lines (edit
, ac
- KEY_PRESS
, edit
->start_display
);
1424 edit
->force
|= REDRAW_PAGE
;
1426 else if (edit
->start_display
< ac
- KEY_PRESS
)
1428 edit
->start_line
+= edit_count_lines (edit
, edit
->start_display
, ac
- KEY_PRESS
);
1429 edit
->force
|= REDRAW_PAGE
;
1431 edit
->start_display
= ac
- KEY_PRESS
; /* see push and pop above */
1432 edit_update_curs_row (edit
);
1438 edit_group_undo (WEdit
* edit
)
1440 long ac
= KEY_PRESS
;
1441 long cur_ac
= KEY_PRESS
;
1442 while (ac
!= STACK_BOTTOM
&& ac
== cur_ac
)
1444 cur_ac
= get_prev_undo_action (edit
);
1445 edit_do_undo (edit
);
1446 ac
= get_prev_undo_action (edit
);
1447 /* exit from cycle if option_group_undo is not set,
1448 * and make single UNDO operation
1450 if (!option_group_undo
)
1455 /* --------------------------------------------------------------------------------------------- */
1458 edit_delete_to_line_end (WEdit
* edit
)
1460 while (edit_get_byte (edit
, edit
->curs1
) != '\n')
1464 edit_delete (edit
, 1);
1468 /* --------------------------------------------------------------------------------------------- */
1471 edit_delete_to_line_begin (WEdit
* edit
)
1473 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n')
1477 edit_backspace (edit
, 1);
1481 /* --------------------------------------------------------------------------------------------- */
1484 is_aligned_on_a_tab (WEdit
* edit
)
1486 edit_update_curs_col (edit
);
1487 return !((edit
->curs_col
% (TAB_SIZE
* space_width
))
1488 && edit
->curs_col
% (TAB_SIZE
* space_width
) != (HALF_TAB_SIZE
* space_width
));
1491 /* --------------------------------------------------------------------------------------------- */
1494 right_of_four_spaces (WEdit
* edit
)
1497 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
1498 ch
|= edit_get_byte (edit
, edit
->curs1
- i
);
1500 return is_aligned_on_a_tab (edit
);
1504 /* --------------------------------------------------------------------------------------------- */
1507 left_of_four_spaces (WEdit
* edit
)
1510 for (i
= 0; i
< HALF_TAB_SIZE
; i
++)
1511 ch
|= edit_get_byte (edit
, edit
->curs1
+ i
);
1513 return is_aligned_on_a_tab (edit
);
1517 /* --------------------------------------------------------------------------------------------- */
1520 edit_auto_indent (WEdit
* edit
)
1525 /* use the previous line as a template */
1526 p
= edit_move_backward (edit
, p
, 1);
1527 /* copy the leading whitespace of the line */
1529 { /* no range check - the line _is_ \n-terminated */
1530 c
= edit_get_byte (edit
, p
++);
1531 if (c
!= ' ' && c
!= '\t')
1533 edit_insert (edit
, c
);
1537 /* --------------------------------------------------------------------------------------------- */
1540 edit_double_newline (WEdit
* edit
)
1542 edit_insert (edit
, '\n');
1543 if (edit_get_byte (edit
, edit
->curs1
) == '\n')
1545 if (edit_get_byte (edit
, edit
->curs1
- 2) == '\n')
1547 edit
->force
|= REDRAW_PAGE
;
1548 edit_insert (edit
, '\n');
1552 /* --------------------------------------------------------------------------------------------- */
1555 insert_spaces_tab (WEdit
* edit
, gboolean half
)
1559 edit_update_curs_col (edit
);
1560 i
= option_tab_spacing
* space_width
;
1563 i
= ((edit
->curs_col
/ i
) + 1) * i
- edit
->curs_col
;
1566 edit_insert (edit
, ' ');
1571 /* --------------------------------------------------------------------------------------------- */
1574 edit_tab_cmd (WEdit
* edit
)
1578 if (option_fake_half_tabs
)
1580 if (is_in_indent (edit
))
1582 /*insert a half tab (usually four spaces) unless there is a
1583 half tab already behind, then delete it and insert a
1585 if (option_fill_tabs_with_spaces
|| !right_of_four_spaces (edit
))
1586 insert_spaces_tab (edit
, TRUE
);
1589 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
1590 edit_backspace (edit
, 1);
1591 edit_insert (edit
, '\t');
1596 if (option_fill_tabs_with_spaces
)
1597 insert_spaces_tab (edit
, FALSE
);
1599 edit_insert (edit
, '\t');
1602 /* --------------------------------------------------------------------------------------------- */
1605 check_and_wrap_line (WEdit
* edit
)
1608 if (!option_typewriter_wrap
)
1610 edit_update_curs_col (edit
);
1611 if (edit
->curs_col
< option_word_wrap_line_length
)
1617 c
= edit_get_byte (edit
, curs
);
1618 if (c
== '\n' || curs
<= 0)
1620 edit_insert (edit
, '\n');
1623 if (c
== ' ' || c
== '\t')
1625 int current
= edit
->curs1
;
1626 edit_cursor_move (edit
, curs
- edit
->curs1
+ 1);
1627 edit_insert (edit
, '\n');
1628 edit_cursor_move (edit
, current
- edit
->curs1
+ 1);
1634 /* --------------------------------------------------------------------------------------------- */
1635 /** this find the matching bracket in either direction, and sets edit->bracket */
1638 edit_get_bracket (WEdit
* edit
, int in_screen
, unsigned long furthest_bracket_search
)
1640 const char *const b
= "{}{[][()(", *p
;
1641 int i
= 1, a
, inc
= -1, c
, d
, n
= 0;
1642 unsigned long j
= 0;
1644 edit_update_curs_row (edit
);
1645 c
= edit_get_byte (edit
, edit
->curs1
);
1648 if (!furthest_bracket_search
)
1649 furthest_bracket_search
--;
1650 /* not on a bracket at all */
1653 /* the matching bracket */
1655 /* going left or right? */
1656 if (strchr ("{[(", c
))
1658 for (q
= edit
->curs1
+ inc
;; q
+= inc
)
1660 /* out of buffer? */
1661 if (q
>= edit
->last_byte
|| q
< 0)
1663 a
= edit_get_byte (edit
, q
);
1664 /* don't want to eat CPU */
1665 if (j
++ > furthest_bracket_search
)
1667 /* out of screen? */
1670 if (q
< edit
->start_display
)
1672 /* count lines if searching downward */
1673 if (inc
> 0 && a
== '\n')
1674 if (n
++ >= edit
->widget
.lines
- edit
->curs_row
) /* out of screen */
1677 /* count bracket depth */
1678 i
+= (a
== c
) - (a
== d
);
1679 /* return if bracket depth is zero */
1687 /* --------------------------------------------------------------------------------------------- */
1690 edit_goto_matching_bracket (WEdit
* edit
)
1694 q
= edit_get_bracket (edit
, 0, 0);
1697 edit
->bracket
= edit
->curs1
;
1698 edit
->force
|= REDRAW_PAGE
;
1699 edit_cursor_move (edit
, q
- edit
->curs1
);
1703 /* --------------------------------------------------------------------------------------------- */
1706 edit_move_block_to_right (WEdit
* edit
)
1708 long start_mark
, end_mark
;
1709 long cur_bol
, start_bol
;
1711 if (eval_marks (edit
, &start_mark
, &end_mark
))
1714 start_bol
= edit_bol (edit
, start_mark
);
1715 cur_bol
= edit_bol (edit
, end_mark
- 1);
1719 edit_cursor_move (edit
, cur_bol
- edit
->curs1
);
1720 if (option_fill_tabs_with_spaces
)
1721 insert_spaces_tab (edit
, option_fake_half_tabs
);
1723 edit_insert (edit
, '\t');
1724 edit_cursor_move (edit
, edit_bol (edit
, cur_bol
) - edit
->curs1
);
1729 cur_bol
= edit_bol (edit
, cur_bol
- 1);
1731 while (cur_bol
>= start_bol
);
1733 edit
->force
|= REDRAW_PAGE
;
1736 /* --------------------------------------------------------------------------------------------- */
1739 edit_move_block_to_left (WEdit
* edit
)
1741 long start_mark
, end_mark
;
1742 long cur_bol
, start_bol
;
1745 if (eval_marks (edit
, &start_mark
, &end_mark
))
1748 start_bol
= edit_bol (edit
, start_mark
);
1749 cur_bol
= edit_bol (edit
, end_mark
- 1);
1756 edit_cursor_move (edit
, cur_bol
- edit
->curs1
);
1758 if (option_fake_half_tabs
)
1759 del_tab_width
= HALF_TAB_SIZE
;
1761 del_tab_width
= option_tab_spacing
;
1763 next_char
= edit_get_byte (edit
, edit
->curs1
);
1764 if (next_char
== '\t')
1765 edit_delete (edit
, 1);
1766 else if (next_char
== ' ')
1767 for (i
= 1; i
<= del_tab_width
; i
++)
1769 if (next_char
== ' ')
1770 edit_delete (edit
, 1);
1771 next_char
= edit_get_byte (edit
, edit
->curs1
);
1777 cur_bol
= edit_bol (edit
, cur_bol
- 1);
1779 while (cur_bol
>= start_bol
);
1781 edit
->force
|= REDRAW_PAGE
;
1784 /* --------------------------------------------------------------------------------------------- */
1786 * prints at the cursor
1787 * @returns the number of chars printed
1791 edit_print_string (WEdit
* e
, const char *s
)
1795 while (s
[i
] != '\0')
1796 edit_execute_cmd (e
, CK_InsertChar
, (unsigned char) s
[i
++]);
1797 e
->force
|= REDRAW_COMPLETELY
;
1798 edit_update_screen (e
);
1802 /* --------------------------------------------------------------------------------------------- */
1803 /*** public functions ****************************************************************************/
1804 /* --------------------------------------------------------------------------------------------- */
1806 /** User edit menu, like user menu (F2) but only in editor. */
1809 user_menu (WEdit
* edit
, const char *menu_file
, int selected_entry
)
1814 long start_mark
, end_mark
;
1816 vfs_path_t
*block_file_vpath
;
1818 block_file
= mc_config_get_full_path (EDIT_BLOCK_FILE
);
1819 block_file_vpath
= vfs_path_from_str (block_file
);
1821 nomark
= eval_marks (edit
, &start_mark
, &end_mark
);
1823 edit_save_block (edit
, block_file
, start_mark
, end_mark
);
1825 /* run shell scripts from menu */
1826 if (user_menu_cmd (edit
, menu_file
, selected_entry
)
1827 && (mc_stat (block_file_vpath
, &status
) == 0) && (status
.st_size
!= 0))
1832 /* i.e. we have marked block */
1834 rc
= edit_block_delete_cmd (edit
);
1840 ins_len
= edit_insert_file (edit
, block_file_vpath
);
1841 if (nomark
== 0 && ins_len
> 0)
1842 edit_set_markers (edit
, start_mark
, start_mark
+ ins_len
, 0, 0);
1844 /* truncate block file */
1845 fd
= fopen (block_file
, "w");
1849 g_free (block_file
);
1850 vfs_path_free (block_file_vpath
);
1852 edit_cursor_move (edit
, curs
- edit
->curs1
);
1853 edit
->force
|= REDRAW_PAGE
;
1854 send_message ((Widget
*) edit
, WIDGET_DRAW
, 0);
1857 /* --------------------------------------------------------------------------------------------- */
1860 edit_get_byte (WEdit
* edit
, long byte_index
)
1863 if (byte_index
>= (edit
->curs1
+ edit
->curs2
) || byte_index
< 0)
1866 if (byte_index
>= edit
->curs1
)
1868 p
= edit
->curs1
+ edit
->curs2
- byte_index
- 1;
1869 return edit
->buffers2
[p
>> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
- (p
& M_EDIT_BUF_SIZE
) - 1];
1873 return edit
->buffers1
[byte_index
>> S_EDIT_BUF_SIZE
][byte_index
& M_EDIT_BUF_SIZE
];
1877 /* --------------------------------------------------------------------------------------------- */
1880 edit_get_utf (WEdit
* edit
, long byte_index
, int *char_width
)
1885 gchar
*next_ch
= NULL
;
1887 gchar utf8_buf
[UTF8_CHAR_LEN
+ 1];
1889 if (byte_index
>= (edit
->curs1
+ edit
->curs2
) || byte_index
< 0)
1895 str
= edit_get_byte_ptr (edit
, byte_index
);
1903 res
= g_utf8_get_char_validated (str
, -1);
1907 /* Retry with explicit bytes to make sure it's not a buffer boundary */
1909 for (i
= 0; i
< UTF8_CHAR_LEN
; i
++)
1910 utf8_buf
[i
] = edit_get_byte (edit
, byte_index
+ i
);
1911 utf8_buf
[UTF8_CHAR_LEN
] = '\0';
1913 res
= g_utf8_get_char_validated (str
, -1);
1924 /* Calculate UTF-8 char width */
1925 next_ch
= g_utf8_next_char (str
);
1928 width
= next_ch
- str
;
1936 *char_width
= width
;
1940 /* --------------------------------------------------------------------------------------------- */
1943 edit_get_write_filter (const vfs_path_t
* write_name_vpath
, const vfs_path_t
* filename_vpath
)
1946 char *p
, *writename
;
1947 const vfs_path_element_t
*path_element
;
1949 i
= edit_find_filter (filename_vpath
);
1953 path_element
= vfs_path_get_by_index (write_name_vpath
, -1);
1954 writename
= name_quote (path_element
->path
, 0);
1955 p
= g_strdup_printf (all_filters
[i
].write
, writename
);
1960 /* --------------------------------------------------------------------------------------------- */
1963 edit_write_stream (WEdit
* edit
, FILE * f
)
1967 if (edit
->lb
== LB_ASIS
)
1969 for (i
= 0; i
< edit
->last_byte
; i
++)
1970 if (fputc (edit_get_byte (edit
, i
), f
) < 0)
1975 /* change line breaks */
1976 for (i
= 0; i
< edit
->last_byte
; i
++)
1978 unsigned char c
= edit_get_byte (edit
, i
);
1980 if (!(c
== '\n' || c
== '\r'))
1982 /* not line break */
1983 if (fputc (c
, f
) < 0)
1987 { /* (c == '\n' || c == '\r') */
1988 unsigned char c1
= edit_get_byte (edit
, i
+ 1); /* next char */
1992 case LB_UNIX
: /* replace "\r\n" or '\r' to '\n' */
1993 /* put one line break unconditionally */
1994 if (fputc ('\n', f
) < 0)
1997 i
++; /* 2 chars are processed */
1999 if (c
== '\r' && c1
== '\n')
2000 /* Windows line break; go to the next char */
2003 if (c
== '\r' && c1
== '\r')
2005 /* two Macintosh line breaks; put second line break */
2006 if (fputc ('\n', f
) < 0)
2011 if (fputc (c1
, f
) < 0)
2015 case LB_WIN
: /* replace '\n' or '\r' to "\r\n" */
2016 /* put one line break unconditionally */
2017 if (fputc ('\r', f
) < 0 || fputc ('\n', f
) < 0)
2020 if (c
== '\r' && c1
== '\n')
2021 /* Windows line break; go to the next char */
2025 case LB_MAC
: /* replace "\r\n" or '\n' to '\r' */
2026 /* put one line break unconditionally */
2027 if (fputc ('\r', f
) < 0)
2030 i
++; /* 2 chars are processed */
2032 if (c
== '\r' && c1
== '\n')
2033 /* Windows line break; go to the next char */
2036 if (c
== '\n' && c1
== '\n')
2038 /* two Windows line breaks; put second line break */
2039 if (fputc ('\r', f
) < 0)
2044 if (fputc (c1
, f
) < 0)
2047 case LB_ASIS
: /* default without changes */
2053 return edit
->last_byte
;
2056 /* --------------------------------------------------------------------------------------------- */
2057 /** inserts a file at the cursor, returns count of inserted bytes on success */
2059 edit_insert_file (WEdit
* edit
, const vfs_path_t
* filename_vpath
)
2064 p
= edit_get_filter (filename_vpath
);
2068 long current
= edit
->curs1
;
2070 f
= (FILE *) popen (p
, "r");
2073 edit_insert_stream (edit
, f
);
2074 ins_len
= edit
->curs1
- current
;
2075 edit_cursor_move (edit
, -ins_len
);
2080 errmsg
= g_strdup_printf (_("Error reading from pipe: %s"), p
);
2081 edit_error_dialog (_("Error"), errmsg
);
2090 errmsg
= g_strdup_printf (_("Cannot open pipe for reading: %s"), p
);
2091 edit_error_dialog (_("Error"), errmsg
);
2099 int i
, file
, blocklen
;
2100 long current
= edit
->curs1
;
2101 int vertical_insertion
= 0;
2104 file
= mc_open (filename_vpath
, O_RDONLY
| O_BINARY
);
2108 buf
= g_malloc0 (TEMP_BUF_LEN
);
2109 blocklen
= mc_read (file
, buf
, sizeof (VERTICAL_MAGIC
));
2112 /* if contain signature VERTICAL_MAGIC then it vertical block */
2113 if (memcmp (buf
, VERTICAL_MAGIC
, sizeof (VERTICAL_MAGIC
)) == 0)
2114 vertical_insertion
= 1;
2116 mc_lseek (file
, 0, SEEK_SET
);
2119 if (vertical_insertion
)
2124 blocklen
= edit_insert_column_of_text_from_file (edit
, file
, &mark1
, &mark2
, &c1
, &c2
);
2125 edit_set_markers (edit
, edit
->curs1
, mark2
, c1
, c2
);
2126 /* highlight inserted text then not persistent blocks */
2127 if (!option_persistent_selections
)
2129 if (!edit
->column_highlight
)
2130 edit_push_undo_action (edit
, COLUMN_OFF
);
2131 edit
->column_highlight
= 1;
2136 while ((blocklen
= mc_read (file
, (char *) buf
, TEMP_BUF_LEN
)) > 0)
2138 for (i
= 0; i
< blocklen
; i
++)
2139 edit_insert (edit
, buf
[i
]);
2141 /* highlight inserted text then not persistent blocks */
2142 if (!option_persistent_selections
&& edit
->modified
)
2144 edit_set_markers (edit
, edit
->curs1
, current
, 0, 0);
2145 if (edit
->column_highlight
)
2146 edit_push_undo_action (edit
, COLUMN_ON
);
2147 edit
->column_highlight
= 0;
2151 edit
->force
|= REDRAW_PAGE
;
2152 ins_len
= edit
->curs1
- current
;
2153 edit_cursor_move (edit
, -ins_len
);
2163 /* --------------------------------------------------------------------------------------------- */
2165 * Fill in the edit structure. Return NULL on failure. Pass edit as
2166 * NULL to allocate a new structure.
2168 * If line is 0, try to restore saved position. Otherwise put the
2169 * cursor on that line and show it in the middle of the screen.
2173 edit_init (WEdit
* edit
, int y
, int x
, int lines
, int cols
, const vfs_path_t
* filename_vpath
,
2176 gboolean to_free
= FALSE
;
2178 option_auto_syntax
= 1; /* Resetting to auto on every invokation */
2179 option_line_state_width
= option_line_state
? LINE_STATE_WIDTH
: 0;
2182 edit_purge_widget (edit
);
2187 * Expand option_whole_chars_search by national letters using
2191 static char option_whole_chars_search_buf
[256];
2193 if (option_whole_chars_search_buf
!= option_whole_chars_search
)
2196 size_t len
= str_term_width1 (option_whole_chars_search
);
2198 strcpy (option_whole_chars_search_buf
, option_whole_chars_search
);
2200 for (i
= 1; i
<= sizeof (option_whole_chars_search_buf
); i
++)
2202 if (g_ascii_islower ((gchar
) i
) && !strchr (option_whole_chars_search
, i
))
2204 option_whole_chars_search_buf
[len
++] = i
;
2208 option_whole_chars_search_buf
[len
] = 0;
2209 option_whole_chars_search
= option_whole_chars_search_buf
;
2211 #endif /* ENABLE_NLS */
2212 edit
= g_malloc0 (sizeof (WEdit
));
2216 edit
->drag_state
= MCEDIT_DRAG_NORMAL
;
2219 edit
->widget
.lines
= lines
;
2220 edit
->widget
.cols
= cols
;
2221 edit_save_size (edit
);
2222 edit
->fullscreen
= TRUE
;
2224 edit
->stat1
.st_mode
= S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IROTH
;
2225 edit
->stat1
.st_uid
= getuid ();
2226 edit
->stat1
.st_gid
= getgid ();
2227 edit
->stat1
.st_mtime
= 0;
2231 edit
->force
|= REDRAW_PAGE
;
2233 /* set file name before load file */
2234 edit_set_filename (edit
, filename_vpath
);
2236 edit
->undo_stack_size
= START_STACK_SIZE
;
2237 edit
->undo_stack_size_mask
= START_STACK_SIZE
- 1;
2238 edit
->undo_stack
= g_malloc0 ((edit
->undo_stack_size
+ 10) * sizeof (long));
2240 edit
->redo_stack_size
= START_STACK_SIZE
;
2241 edit
->redo_stack_size_mask
= START_STACK_SIZE
- 1;
2242 edit
->redo_stack
= g_malloc0 ((edit
->redo_stack_size
+ 10) * sizeof (long));
2245 edit
->converter
= str_cnv_from_term
;
2246 edit_set_codeset (edit
);
2248 if (!edit_load_file (edit
))
2250 /* edit_load_file already gives an error message */
2256 edit
->loading_done
= 1;
2259 edit_load_syntax (edit
, NULL
, NULL
);
2262 edit_get_syntax_color (edit
, -1, &color
);
2265 /* load saved cursor position */
2266 if ((line
== 0) && option_save_position
)
2267 edit_load_position (edit
);
2272 edit_move_display (edit
, line
- 1);
2273 edit_move_to_line (edit
, line
- 1);
2276 edit_load_macro_cmd (edit
);
2280 /* --------------------------------------------------------------------------------------------- */
2282 /** Clear the edit struct, freeing everything in it. Return TRUE on success */
2284 edit_clean (WEdit
* edit
)
2291 /* a stale lock, remove it */
2293 edit
->locked
= unlock_file (edit
->filename_vpath
);
2295 /* save cursor position */
2296 if (option_save_position
)
2297 edit_save_position (edit
);
2298 else if (edit
->serialized_bookmarks
!= NULL
)
2299 edit
->serialized_bookmarks
= (GArray
*) g_array_free (edit
->serialized_bookmarks
, TRUE
);
2301 /* File specified on the mcedit command line and never saved */
2302 if (edit
->delete_file
)
2303 unlink (vfs_path_get_last_path_str (edit
->filename_vpath
));
2305 edit_free_syntax_rules (edit
);
2306 book_mark_flush (edit
, -1);
2307 for (; j
<= MAXBUFF
; j
++)
2309 g_free (edit
->buffers1
[j
]);
2310 g_free (edit
->buffers2
[j
]);
2313 g_free (edit
->undo_stack
);
2314 g_free (edit
->redo_stack
);
2315 vfs_path_free (edit
->filename_vpath
);
2316 vfs_path_free (edit
->dir_vpath
);
2317 mc_search_free (edit
->search
);
2318 edit
->search
= NULL
;
2320 if (edit
->converter
!= str_cnv_from_term
)
2321 str_close_conv (edit
->converter
);
2323 edit_purge_widget (edit
);
2328 /* --------------------------------------------------------------------------------------------- */
2331 * Load a new file into the editor and set line. If it fails, preserve the old file.
2332 * To do it, allocate a new widget, initialize it and, if the new file
2333 * was loaded, copy the data to the old widget.
2335 * @returns TRUE on success, FALSE on failure.
2338 edit_reload_line (WEdit
* edit
, const vfs_path_t
* filename_vpath
, long line
)
2341 int y
= edit
->widget
.y
;
2342 int x
= edit
->widget
.x
;
2343 int lines
= edit
->widget
.lines
;
2344 int columns
= edit
->widget
.cols
;
2346 e
= g_malloc0 (sizeof (WEdit
));
2347 e
->widget
= edit
->widget
;
2349 if (edit_init (e
, y
, x
, lines
, columns
, filename_vpath
, line
) == NULL
)
2356 memcpy (edit
, e
, sizeof (WEdit
));
2362 /* --------------------------------------------------------------------------------------------- */
2365 edit_set_codeset (WEdit
* edit
)
2371 get_codepage_id (mc_global
.source_codepage
>=
2372 0 ? mc_global
.source_codepage
: mc_global
.display_codepage
);
2377 conv
= str_crt_conv_from (cp_id
);
2378 if (conv
!= INVALID_CONV
)
2380 if (edit
->converter
!= str_cnv_from_term
)
2381 str_close_conv (edit
->converter
);
2382 edit
->converter
= conv
;
2387 edit
->utf8
= str_isutf8 (cp_id
);
2394 /* --------------------------------------------------------------------------------------------- */
2396 Recording stack for undo:
2397 The following is an implementation of a compressed stack. Identical
2398 pushes are recorded by a negative prefix indicating the number of times the
2399 same char was pushed. This saves space for repeated curs-left or curs-right
2416 If the stack long int is 0-255 it represents a normal insert (from a backspace),
2417 256-512 is an insert ahead (from a delete), If it is betwen 600 and 700 it is one
2418 of the cursor functions #define'd in edit-impl.h. 1000 through 700'000'000 is to
2419 set edit->mark1 position. 700'000'000 through 1400'000'000 is to set edit->mark2
2422 The only way the cursor moves or the buffer is changed is through the routines:
2423 insert, backspace, insert_ahead, delete, and cursor_move.
2424 These record the reverse undo movements onto the stack each time they are
2427 Each key press results in a set of actions (insert; delete ...). So each time
2428 a key is pressed the current position of start_display is pushed as
2429 KEY_PRESS + start_display. Then for undoing, we pop until we get to a number
2430 over KEY_PRESS. We then assign this number less KEY_PRESS to start_display. So undo
2431 tracks scrolling and key actions exactly. (KEY_PRESS is about (2^31) * (2/3) = 1400'000'000)
2436 edit_push_undo_action (WEdit
* edit
, long c
, ...)
2438 unsigned long sp
= edit
->undo_stack_pointer
;
2442 /* first enlarge the stack if necessary */
2443 if (sp
> edit
->undo_stack_size
- 10)
2445 if (option_max_undo
< 256)
2446 option_max_undo
= 256;
2447 if (edit
->undo_stack_size
< (unsigned long) option_max_undo
)
2449 t
= g_realloc (edit
->undo_stack
, (edit
->undo_stack_size
* 2 + 10) * sizeof (long));
2452 edit
->undo_stack
= t
;
2453 edit
->undo_stack_size
<<= 1;
2454 edit
->undo_stack_size_mask
= edit
->undo_stack_size
- 1;
2458 spm1
= (edit
->undo_stack_pointer
- 1) & edit
->undo_stack_size_mask
;
2459 if (edit
->undo_stack_disable
)
2461 edit_push_redo_action (edit
, KEY_PRESS
);
2462 edit_push_redo_action (edit
, c
);
2465 else if (edit
->redo_stack_reset
)
2467 edit
->redo_stack_bottom
= edit
->redo_stack_pointer
= 0;
2470 if (edit
->undo_stack_bottom
!= sp
2471 && spm1
!= edit
->undo_stack_bottom
2472 && ((sp
- 2) & edit
->undo_stack_size_mask
) != edit
->undo_stack_bottom
)
2475 if (edit
->undo_stack
[spm1
] < 0)
2477 d
= edit
->undo_stack
[(sp
- 2) & edit
->undo_stack_size_mask
];
2480 if (edit
->undo_stack
[spm1
] > -1000000000)
2482 if (c
< KEY_PRESS
) /* --> no need to push multiple do-nothings */
2484 edit
->undo_stack
[spm1
]--;
2492 d
= edit
->undo_stack
[spm1
];
2496 return; /* --> no need to push multiple do-nothings */
2497 edit
->undo_stack
[sp
] = -2;
2502 edit
->undo_stack
[sp
] = c
;
2505 edit
->undo_stack_pointer
= (edit
->undo_stack_pointer
+ 1) & edit
->undo_stack_size_mask
;
2507 /* if the sp wraps round and catches the undo_stack_bottom then erase
2508 * the first set of actions on the stack to make space - by moving
2509 * undo_stack_bottom forward one "key press" */
2510 c
= (edit
->undo_stack_pointer
+ 2) & edit
->undo_stack_size_mask
;
2511 if ((unsigned long) c
== edit
->undo_stack_bottom
||
2512 (((unsigned long) c
+ 1) & edit
->undo_stack_size_mask
) == edit
->undo_stack_bottom
)
2515 edit
->undo_stack_bottom
= (edit
->undo_stack_bottom
+ 1) & edit
->undo_stack_size_mask
;
2517 while (edit
->undo_stack
[edit
->undo_stack_bottom
] < KEY_PRESS
2518 && edit
->undo_stack_bottom
!= edit
->undo_stack_pointer
);
2520 /*If a single key produced enough pushes to wrap all the way round then we would notice that the [undo_stack_bottom] does not contain KEY_PRESS. The stack is then initialised: */
2521 if (edit
->undo_stack_pointer
!= edit
->undo_stack_bottom
2522 && edit
->undo_stack
[edit
->undo_stack_bottom
] < KEY_PRESS
)
2524 edit
->undo_stack_bottom
= edit
->undo_stack_pointer
= 0;
2529 edit_push_redo_action (WEdit
* edit
, long c
, ...)
2531 unsigned long sp
= edit
->redo_stack_pointer
;
2534 /* first enlarge the stack if necessary */
2535 if (sp
> edit
->redo_stack_size
- 10)
2537 if (option_max_undo
< 256)
2538 option_max_undo
= 256;
2539 if (edit
->redo_stack_size
< (unsigned long) option_max_undo
)
2541 t
= g_realloc (edit
->redo_stack
, (edit
->redo_stack_size
* 2 + 10) * sizeof (long));
2544 edit
->redo_stack
= t
;
2545 edit
->redo_stack_size
<<= 1;
2546 edit
->redo_stack_size_mask
= edit
->redo_stack_size
- 1;
2550 spm1
= (edit
->redo_stack_pointer
- 1) & edit
->redo_stack_size_mask
;
2552 if (edit
->redo_stack_bottom
!= sp
2553 && spm1
!= edit
->redo_stack_bottom
2554 && ((sp
- 2) & edit
->redo_stack_size_mask
) != edit
->redo_stack_bottom
)
2557 if (edit
->redo_stack
[spm1
] < 0)
2559 d
= edit
->redo_stack
[(sp
- 2) & edit
->redo_stack_size_mask
];
2562 if (edit
->redo_stack
[spm1
] > -1000000000)
2564 if (c
< KEY_PRESS
) /* --> no need to push multiple do-nothings */
2565 edit
->redo_stack
[spm1
]--;
2572 d
= edit
->redo_stack
[spm1
];
2576 return; /* --> no need to push multiple do-nothings */
2577 edit
->redo_stack
[sp
] = -2;
2578 goto redo_check_bottom
;
2582 edit
->redo_stack
[sp
] = c
;
2585 edit
->redo_stack_pointer
= (edit
->redo_stack_pointer
+ 1) & edit
->redo_stack_size_mask
;
2587 /* if the sp wraps round and catches the redo_stack_bottom then erase
2588 * the first set of actions on the stack to make space - by moving
2589 * redo_stack_bottom forward one "key press" */
2590 c
= (edit
->redo_stack_pointer
+ 2) & edit
->redo_stack_size_mask
;
2591 if ((unsigned long) c
== edit
->redo_stack_bottom
||
2592 (((unsigned long) c
+ 1) & edit
->redo_stack_size_mask
) == edit
->redo_stack_bottom
)
2595 edit
->redo_stack_bottom
= (edit
->redo_stack_bottom
+ 1) & edit
->redo_stack_size_mask
;
2597 while (edit
->redo_stack
[edit
->redo_stack_bottom
] < KEY_PRESS
2598 && edit
->redo_stack_bottom
!= edit
->redo_stack_pointer
);
2601 * If a single key produced enough pushes to wrap all the way round then
2602 * we would notice that the [redo_stack_bottom] does not contain KEY_PRESS.
2603 * The stack is then initialised:
2606 if (edit
->redo_stack_pointer
!= edit
->redo_stack_bottom
2607 && edit
->redo_stack
[edit
->redo_stack_bottom
] < KEY_PRESS
)
2608 edit
->redo_stack_bottom
= edit
->redo_stack_pointer
= 0;
2612 /* --------------------------------------------------------------------------------------------- */
2614 Basic low level single character buffer alterations and movements at the cursor.
2615 Returns char passed over, inserted or removed.
2619 edit_insert (WEdit
* edit
, int c
)
2621 /* check if file has grown to large */
2622 if (edit
->last_byte
>= SIZE_LIMIT
)
2625 /* first we must update the position of the display window */
2626 if (edit
->curs1
< edit
->start_display
)
2628 edit
->start_display
++;
2633 /* Mark file as modified, unless the file hasn't been fully loaded */
2634 if (edit
->loading_done
)
2636 edit_modification (edit
);
2639 /* now we must update some info on the file and check if a redraw is required */
2642 if (edit
->book_mark
)
2643 book_mark_inc (edit
, edit
->curs_line
);
2645 edit
->total_lines
++;
2646 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
2649 /* save the reverse command onto the undo stack */
2650 /* ordinary char and not space */
2652 edit_push_undo_action (edit
, BACKSPACE
);
2654 edit_push_undo_action (edit
, BACKSPACE_BR
);
2655 /* update markers */
2656 edit
->mark1
+= (edit
->mark1
> edit
->curs1
);
2657 edit
->mark2
+= (edit
->mark2
> edit
->curs1
);
2658 edit
->last_get_rule
+= (edit
->last_get_rule
> edit
->curs1
);
2660 /* add a new buffer if we've reached the end of the last one */
2661 if (!(edit
->curs1
& M_EDIT_BUF_SIZE
))
2662 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2664 /* perform the insertion */
2665 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
][edit
->curs1
& M_EDIT_BUF_SIZE
]
2666 = (unsigned char) c
;
2668 /* update file length */
2671 /* update cursor position */
2675 /* --------------------------------------------------------------------------------------------- */
2676 /** same as edit_insert and move left */
2679 edit_insert_ahead (WEdit
* edit
, int c
)
2681 if (edit
->last_byte
>= SIZE_LIMIT
)
2684 if (edit
->curs1
< edit
->start_display
)
2686 edit
->start_display
++;
2690 edit_modification (edit
);
2693 if (edit
->book_mark
)
2694 book_mark_inc (edit
, edit
->curs_line
);
2695 edit
->total_lines
++;
2696 edit
->force
|= REDRAW_AFTER_CURSOR
;
2698 /* ordinary char and not space */
2700 edit_push_undo_action (edit
, DELCHAR
);
2702 edit_push_undo_action (edit
, DELCHAR_BR
);
2704 edit
->mark1
+= (edit
->mark1
>= edit
->curs1
);
2705 edit
->mark2
+= (edit
->mark2
>= edit
->curs1
);
2706 edit
->last_get_rule
+= (edit
->last_get_rule
>= edit
->curs1
);
2708 if (!((edit
->curs2
+ 1) & M_EDIT_BUF_SIZE
))
2709 edit
->buffers2
[(edit
->curs2
+ 1) >> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2710 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]
2711 [EDIT_BUF_SIZE
- (edit
->curs2
& M_EDIT_BUF_SIZE
) - 1] = c
;
2718 /* --------------------------------------------------------------------------------------------- */
2721 edit_delete (WEdit
* edit
, const int byte_delete
)
2731 /* if byte_delete = 1 then delete only one byte not multibyte char */
2732 if (edit
->utf8
&& byte_delete
== 0)
2734 edit_get_utf (edit
, edit
->curs1
, &cw
);
2739 if (edit
->mark2
!= edit
->mark1
)
2740 edit_push_markers (edit
);
2742 for (i
= 1; i
<= cw
; i
++)
2744 if (edit
->mark1
> edit
->curs1
)
2747 edit
->end_mark_curs
--;
2749 if (edit
->mark2
> edit
->curs1
)
2751 if (edit
->last_get_rule
> edit
->curs1
)
2752 edit
->last_get_rule
--;
2754 p
= edit
->buffers2
[(edit
->curs2
- 1) >> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
2756 1) & M_EDIT_BUF_SIZE
) - 1];
2758 if (!(edit
->curs2
& M_EDIT_BUF_SIZE
))
2760 g_free (edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]);
2761 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
] = NULL
;
2765 edit_push_undo_action (edit
, p
+ 256);
2768 edit_modification (edit
);
2771 if (edit
->book_mark
)
2772 book_mark_dec (edit
, edit
->curs_line
);
2773 edit
->total_lines
--;
2774 edit
->force
|= REDRAW_AFTER_CURSOR
;
2776 if (edit
->curs1
< edit
->start_display
)
2778 edit
->start_display
--;
2786 /* --------------------------------------------------------------------------------------------- */
2787 /** moves the cursor right or left: increment positive or negative respectively */
2790 edit_cursor_move (WEdit
* edit
, long increment
)
2792 /* this is the same as a combination of two of the above routines, with only one push onto the undo stack */
2797 for (; increment
< 0; increment
++)
2802 edit_push_undo_action (edit
, CURS_RIGHT
);
2804 c
= edit_get_byte (edit
, edit
->curs1
- 1);
2805 if (!((edit
->curs2
+ 1) & M_EDIT_BUF_SIZE
))
2806 edit
->buffers2
[(edit
->curs2
+ 1) >> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2807 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
2808 (edit
->curs2
& M_EDIT_BUF_SIZE
) - 1] = c
;
2810 c
= edit
->buffers1
[(edit
->curs1
- 1) >> S_EDIT_BUF_SIZE
][(edit
->curs1
-
2811 1) & M_EDIT_BUF_SIZE
];
2812 if (!((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
))
2814 g_free (edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
]);
2815 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = NULL
;
2821 edit
->force
|= REDRAW_LINE_BELOW
;
2826 else if (increment
> 0)
2828 for (; increment
> 0; increment
--)
2833 edit_push_undo_action (edit
, CURS_LEFT
);
2835 c
= edit_get_byte (edit
, edit
->curs1
);
2836 if (!(edit
->curs1
& M_EDIT_BUF_SIZE
))
2837 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2838 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
][edit
->curs1
& M_EDIT_BUF_SIZE
] = c
;
2840 c
= edit
->buffers2
[(edit
->curs2
- 1) >> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
2842 1) & M_EDIT_BUF_SIZE
) - 1];
2843 if (!(edit
->curs2
& M_EDIT_BUF_SIZE
))
2845 g_free (edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]);
2846 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
] = 0;
2852 edit
->force
|= REDRAW_LINE_ABOVE
;
2858 /* These functions return positions relative to lines */
2860 /* --------------------------------------------------------------------------------------------- */
2861 /** returns index of last char on line + 1 */
2864 edit_eol (WEdit
* edit
, long current
)
2866 if (current
>= edit
->last_byte
)
2867 return edit
->last_byte
;
2870 if (edit_get_byte (edit
, current
) == '\n')
2875 /* --------------------------------------------------------------------------------------------- */
2876 /** returns index of first char on line */
2879 edit_bol (WEdit
* edit
, long current
)
2885 if (edit_get_byte (edit
, current
- 1) == '\n')
2890 /* --------------------------------------------------------------------------------------------- */
2893 edit_count_lines (WEdit
* edit
, long current
, long upto
)
2896 if (upto
> edit
->last_byte
)
2897 upto
= edit
->last_byte
;
2900 while (current
< upto
)
2901 if (edit_get_byte (edit
, current
++) == '\n')
2906 /* --------------------------------------------------------------------------------------------- */
2907 /* If lines is zero this returns the count of lines from current to upto. */
2908 /* If upto is zero returns index of lines forward current. */
2911 edit_move_forward (WEdit
* edit
, long current
, long lines
, long upto
)
2915 return edit_count_lines (edit
, current
, upto
);
2924 next
= edit_eol (edit
, current
) + 1;
2925 if (next
> edit
->last_byte
)
2934 /* --------------------------------------------------------------------------------------------- */
2935 /** Returns offset of 'lines' lines up from current */
2938 edit_move_backward (WEdit
* edit
, long current
, long lines
)
2942 current
= edit_bol (edit
, current
);
2943 while ((lines
--) && current
!= 0)
2944 current
= edit_bol (edit
, current
- 1);
2948 /* --------------------------------------------------------------------------------------------- */
2949 /* If cols is zero this returns the count of columns from current to upto. */
2950 /* If upto is zero returns index of cols across from current. */
2953 edit_move_forward3 (WEdit
* edit
, long current
, int cols
, long upto
)
2964 q
= edit
->last_byte
+ 2;
2966 for (col
= 0, p
= current
; p
< q
; p
++)
2978 orig_c
= c
= edit_get_byte (edit
, p
);
2986 utf_ch
= edit_get_utf (edit
, p
, &cw
);
2987 if (mc_global
.utf8_display
)
2991 if (g_unichar_iswide (utf_ch
))
2994 else if (cw
> 1 && g_unichar_isprint (utf_ch
))
2998 c
= convert_to_display_c (c
);
3002 col
+= TAB_SIZE
- col
% TAB_SIZE
;
3010 else if ((c
< 32 || c
== 127) && (orig_c
== c
|| (!mc_global
.utf8_display
&& !edit
->utf8
)))
3011 /* '\r' is shown as ^M, so we must advance 2 characters */
3012 /* Caret notation for control characters */
3020 /* --------------------------------------------------------------------------------------------- */
3021 /** returns the current column position of the cursor */
3024 edit_get_col (WEdit
* edit
)
3026 return edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0, edit
->curs1
);
3029 /* --------------------------------------------------------------------------------------------- */
3030 /* Scrolling functions */
3031 /* --------------------------------------------------------------------------------------------- */
3034 edit_update_curs_row (WEdit
* edit
)
3036 edit
->curs_row
= edit
->curs_line
- edit
->start_line
;
3039 /* --------------------------------------------------------------------------------------------- */
3042 edit_update_curs_col (WEdit
* edit
)
3044 edit
->curs_col
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0, edit
->curs1
);
3047 /* --------------------------------------------------------------------------------------------- */
3050 edit_get_curs_col (const WEdit
* edit
)
3052 return edit
->curs_col
;
3055 /* --------------------------------------------------------------------------------------------- */
3056 /** moves the display start position up by i lines */
3059 edit_scroll_upward (WEdit
* edit
, unsigned long i
)
3061 unsigned long lines_above
= edit
->start_line
;
3062 if (i
> lines_above
)
3066 edit
->start_line
-= i
;
3067 edit
->start_display
= edit_move_backward (edit
, edit
->start_display
, i
);
3068 edit
->force
|= REDRAW_PAGE
;
3069 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3071 edit_update_curs_row (edit
);
3075 /* --------------------------------------------------------------------------------------------- */
3076 /** returns 1 if could scroll, 0 otherwise */
3079 edit_scroll_downward (WEdit
* edit
, int i
)
3082 lines_below
= edit
->total_lines
- edit
->start_line
- (edit
->widget
.lines
- 1);
3083 if (lines_below
> 0)
3085 if (i
> lines_below
)
3087 edit
->start_line
+= i
;
3088 edit
->start_display
= edit_move_forward (edit
, edit
->start_display
, i
, 0);
3089 edit
->force
|= REDRAW_PAGE
;
3090 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3092 edit_update_curs_row (edit
);
3095 /* --------------------------------------------------------------------------------------------- */
3098 edit_scroll_right (WEdit
* edit
, int i
)
3100 edit
->force
|= REDRAW_PAGE
;
3101 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3102 edit
->start_col
-= i
;
3105 /* --------------------------------------------------------------------------------------------- */
3108 edit_scroll_left (WEdit
* edit
, int i
)
3110 if (edit
->start_col
)
3112 edit
->start_col
+= i
;
3113 if (edit
->start_col
> 0)
3114 edit
->start_col
= 0;
3115 edit
->force
|= REDRAW_PAGE
;
3116 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3120 /* --------------------------------------------------------------------------------------------- */
3121 /* high level cursor movement commands */
3122 /* --------------------------------------------------------------------------------------------- */
3125 edit_move_to_prev_col (WEdit
* edit
, long p
)
3127 int prev
= edit
->prev_col
;
3128 int over
= edit
->over_col
;
3129 edit_cursor_move (edit
, edit_move_forward3 (edit
, p
, prev
+ edit
->over_col
, 0) - edit
->curs1
);
3131 if (option_cursor_beyond_eol
)
3133 long line_len
= edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0,
3134 edit_eol (edit
, edit
->curs1
));
3136 if (line_len
< prev
+ edit
->over_col
)
3138 edit
->over_col
= prev
+ over
- line_len
;
3139 edit
->prev_col
= line_len
;
3140 edit
->curs_col
= line_len
;
3144 edit
->curs_col
= prev
+ over
;
3145 edit
->prev_col
= edit
->curs_col
;
3152 if (is_in_indent (edit
) && option_fake_half_tabs
)
3154 edit_update_curs_col (edit
);
3156 if (edit
->curs_col
% (HALF_TAB_SIZE
* space_width
))
3158 int q
= edit
->curs_col
;
3159 edit
->curs_col
-= (edit
->curs_col
% (HALF_TAB_SIZE
* space_width
));
3160 p
= edit_bol (edit
, edit
->curs1
);
3161 edit_cursor_move (edit
,
3162 edit_move_forward3 (edit
, p
, edit
->curs_col
,
3164 if (!left_of_four_spaces (edit
))
3165 edit_cursor_move (edit
, edit_move_forward3 (edit
, p
, q
, 0) - edit
->curs1
);
3171 /* --------------------------------------------------------------------------------------------- */
3174 line_is_blank (WEdit
* edit
, long line
)
3176 return is_blank (edit
, edit_find_line (edit
, line
));
3179 /* --------------------------------------------------------------------------------------------- */
3180 /** move cursor to line 'line' */
3183 edit_move_to_line (WEdit
* e
, long line
)
3185 if (line
< e
->curs_line
)
3186 edit_move_up (e
, e
->curs_line
- line
, 0);
3188 edit_move_down (e
, line
- e
->curs_line
, 0);
3189 edit_scroll_screen_over_cursor (e
);
3192 /* --------------------------------------------------------------------------------------------- */
3193 /** scroll window so that first visible line is 'line' */
3196 edit_move_display (WEdit
* e
, long line
)
3198 if (line
< e
->start_line
)
3199 edit_scroll_upward (e
, e
->start_line
- line
);
3201 edit_scroll_downward (e
, line
- e
->start_line
);
3204 /* --------------------------------------------------------------------------------------------- */
3205 /** save markers onto undo stack */
3208 edit_push_markers (WEdit
* edit
)
3210 edit_push_undo_action (edit
, MARK_1
+ edit
->mark1
);
3211 edit_push_undo_action (edit
, MARK_2
+ edit
->mark2
);
3212 edit_push_undo_action (edit
, MARK_CURS
+ edit
->end_mark_curs
);
3215 /* --------------------------------------------------------------------------------------------- */
3218 edit_set_markers (WEdit
* edit
, long m1
, long m2
, int c1
, int c2
)
3227 /* --------------------------------------------------------------------------------------------- */
3228 /** highlight marker toggle */
3231 edit_mark_cmd (WEdit
* edit
, int unmark
)
3233 edit_push_markers (edit
);
3236 edit_set_markers (edit
, 0, 0, 0, 0);
3237 edit
->force
|= REDRAW_PAGE
;
3241 if (edit
->mark2
>= 0)
3243 edit
->end_mark_curs
= -1;
3244 edit_set_markers (edit
, edit
->curs1
, -1, edit
->curs_col
+ edit
->over_col
,
3245 edit
->curs_col
+ edit
->over_col
);
3246 edit
->force
|= REDRAW_PAGE
;
3250 edit
->end_mark_curs
= edit
->curs1
;
3251 edit_set_markers (edit
, edit
->mark1
, edit
->curs1
, edit
->column1
,
3252 edit
->curs_col
+ edit
->over_col
);
3257 /* --------------------------------------------------------------------------------------------- */
3258 /** highlight the word under cursor */
3261 edit_mark_current_word_cmd (WEdit
* edit
)
3265 for (pos
= edit
->curs1
; pos
!= 0; pos
--)
3269 c1
= edit_get_byte (edit
, pos
);
3270 c2
= edit_get_byte (edit
, pos
- 1);
3271 if (!isspace (c1
) && isspace (c2
))
3273 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
3278 for (; pos
< edit
->last_byte
; pos
++)
3282 c1
= edit_get_byte (edit
, pos
);
3283 c2
= edit_get_byte (edit
, pos
+ 1);
3284 if (!isspace (c1
) && isspace (c2
))
3286 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
3289 edit
->mark2
= min (pos
+ 1, edit
->last_byte
);
3291 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
3294 /* --------------------------------------------------------------------------------------------- */
3297 edit_mark_current_line_cmd (WEdit
* edit
)
3299 long pos
= edit
->curs1
;
3301 edit
->mark1
= edit_bol (edit
, pos
);
3302 edit
->mark2
= edit_eol (edit
, pos
);
3304 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
3307 /* --------------------------------------------------------------------------------------------- */
3310 edit_delete_line (WEdit
* edit
)
3313 * Delete right part of the line.
3314 * Note that edit_get_byte() returns '\n' when byte position is
3317 while (edit_get_byte (edit
, edit
->curs1
) != '\n')
3319 (void) edit_delete (edit
, 1);
3324 * Note that edit_delete() will not corrupt anything if called while
3325 * cursor position is EOF.
3327 (void) edit_delete (edit
, 1);
3330 * Delete left part of the line.
3331 * Note, that edit_get_byte() returns '\n' when byte position is < 0.
3333 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n')
3335 (void) edit_backspace (edit
, 1);
3339 /* --------------------------------------------------------------------------------------------- */
3342 edit_indent_width (WEdit
* edit
, long p
)
3345 while (strchr ("\t ", edit_get_byte (edit
, q
)) && q
< edit
->last_byte
- 1) /* move to the end of the leading whitespace of the line */
3347 return edit_move_forward3 (edit
, p
, 0, q
); /* count the number of columns of indentation */
3350 /* --------------------------------------------------------------------------------------------- */
3353 edit_insert_indent (WEdit
* edit
, int indent
)
3355 if (!option_fill_tabs_with_spaces
)
3357 while (indent
>= TAB_SIZE
)
3359 edit_insert (edit
, '\t');
3363 while (indent
-- > 0)
3364 edit_insert (edit
, ' ');
3367 /* --------------------------------------------------------------------------------------------- */
3370 edit_push_key_press (WEdit
* edit
)
3372 edit_push_undo_action (edit
, KEY_PRESS
+ edit
->start_display
);
3373 if (edit
->mark2
== -1)
3375 edit_push_undo_action (edit
, MARK_1
+ edit
->mark1
);
3376 edit_push_undo_action (edit
, MARK_CURS
+ edit
->end_mark_curs
);
3380 /* --------------------------------------------------------------------------------------------- */
3383 edit_find_bracket (WEdit
* edit
)
3385 edit
->bracket
= edit_get_bracket (edit
, 1, 10000);
3386 if (last_bracket
!= edit
->bracket
)
3387 edit
->force
|= REDRAW_PAGE
;
3388 last_bracket
= edit
->bracket
;
3391 /* --------------------------------------------------------------------------------------------- */
3393 * This executes a command as though the user initiated it through a key
3394 * press. Callback with WIDGET_KEY as a message calls this after
3395 * translating the key press. This function can be used to pass any
3396 * command to the editor. Note that the screen wouldn't update
3397 * automatically. Either of command or char_for_insertion must be
3398 * passed as -1. Commands are executed, and char_for_insertion is
3399 * inserted at the cursor.
3403 edit_execute_key_command (WEdit
* edit
, unsigned long command
, int char_for_insertion
)
3405 if (command
== CK_MacroStartRecord
|| command
== CK_RepeatStartRecord
3407 && (command
== CK_MacroStartStopRecord
|| command
== CK_RepeatStartStopRecord
)))
3410 edit
->force
|= REDRAW_CHAR_ONLY
| REDRAW_LINE
;
3413 if (macro_index
!= -1)
3415 edit
->force
|= REDRAW_COMPLETELY
;
3416 if (command
== CK_MacroStopRecord
|| command
== CK_MacroStartStopRecord
)
3418 edit_store_macro_cmd (edit
);
3422 else if (command
== CK_RepeatStopRecord
|| command
== CK_RepeatStartStopRecord
)
3424 edit_repeat_macro_cmd (edit
);
3430 if (macro_index
>= 0 && macro_index
< MAX_MACRO_LENGTH
- 1)
3432 record_macro_buf
[macro_index
].action
= command
;
3433 record_macro_buf
[macro_index
++].ch
= char_for_insertion
;
3435 /* record the beginning of a set of editing actions initiated by a key press */
3436 if (command
!= CK_Undo
&& command
!= CK_ExtendedKeyMap
)
3437 edit_push_key_press (edit
);
3439 edit_execute_cmd (edit
, command
, char_for_insertion
);
3440 if (edit
->column_highlight
)
3441 edit
->force
|= REDRAW_PAGE
;
3444 /* --------------------------------------------------------------------------------------------- */
3446 This executes a command at a lower level than macro recording.
3447 It also does not push a key_press onto the undo stack. This means
3448 that if it is called many times, a single undo command will undo
3449 all of them. It also does not check for the Undo command.
3452 edit_execute_cmd (WEdit
* edit
, unsigned long command
, int char_for_insertion
)
3454 if (command
== CK_WindowFullscreen
)
3456 edit_toggle_fullscreen (edit
);
3460 /* handle window state */
3461 if (edit_handle_move_resize (edit
, command
))
3464 edit
->force
|= REDRAW_LINE
;
3466 /* The next key press will unhighlight the found string, so update
3468 if (edit
->found_len
|| edit
->column_highlight
)
3469 edit
->force
|= REDRAW_PAGE
;
3473 /* a mark command with shift-arrow */
3476 case CK_MarkToWordBegin
:
3477 case CK_MarkToWordEnd
:
3483 case CK_MarkPageDown
:
3484 case CK_MarkToFileBegin
:
3485 case CK_MarkToFileEnd
:
3486 case CK_MarkToPageBegin
:
3487 case CK_MarkToPageEnd
:
3488 case CK_MarkScrollUp
:
3489 case CK_MarkScrollDown
:
3490 case CK_MarkParagraphUp
:
3491 case CK_MarkParagraphDown
:
3492 /* a mark command with alt-arrow */
3493 case CK_MarkColumnPageUp
:
3494 case CK_MarkColumnPageDown
:
3495 case CK_MarkColumnLeft
:
3496 case CK_MarkColumnRight
:
3497 case CK_MarkColumnUp
:
3498 case CK_MarkColumnDown
:
3499 case CK_MarkColumnScrollUp
:
3500 case CK_MarkColumnScrollDown
:
3501 case CK_MarkColumnParagraphUp
:
3502 case CK_MarkColumnParagraphDown
:
3503 edit
->column_highlight
= 0;
3504 if (edit
->highlight
== 0 || (edit
->mark2
!= -1 && edit
->mark1
!= edit
->mark2
))
3506 edit_mark_cmd (edit
, 1); /* clear */
3507 edit_mark_cmd (edit
, 0); /* marking on */
3509 edit
->highlight
= 1;
3512 /* any other command */
3514 if (edit
->highlight
)
3515 edit_mark_cmd (edit
, 0); /* clear */
3516 edit
->highlight
= 0;
3519 /* first check for undo */
3520 if (command
== CK_Undo
)
3522 edit
->redo_stack_reset
= 0;
3523 edit_group_undo (edit
);
3524 edit
->found_len
= 0;
3525 edit
->prev_col
= edit_get_col (edit
);
3526 edit
->search_start
= edit
->curs1
;
3529 /* check for redo */
3530 if (command
== CK_Redo
)
3532 edit
->redo_stack_reset
= 0;
3533 edit_do_redo (edit
);
3534 edit
->found_len
= 0;
3535 edit
->prev_col
= edit_get_col (edit
);
3536 edit
->search_start
= edit
->curs1
;
3540 edit
->redo_stack_reset
= 1;
3542 /* An ordinary key press */
3543 if (char_for_insertion
>= 0)
3545 /* if non persistent selection and text selected */
3546 if (!option_persistent_selections
)
3548 if (edit
->mark1
!= edit
->mark2
)
3549 edit_block_delete_cmd (edit
);
3551 if (edit
->overwrite
)
3553 /* remove char only one time, after input first byte, multibyte chars */
3554 if ((!mc_global
.utf8_display
|| edit
->charpoint
== 0)
3555 && edit_get_byte (edit
, edit
->curs1
) != '\n')
3556 edit_delete (edit
, 0);
3558 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3559 edit_insert_over (edit
);
3561 if (char_for_insertion
> 255 && !mc_global
.utf8_display
)
3563 unsigned char str
[6 + 1];
3567 res
= g_unichar_to_utf8 (char_for_insertion
, (char *) str
);
3577 while (str
[i
] != 0 && i
<= 6)
3579 char_for_insertion
= str
[i
];
3580 edit_insert (edit
, char_for_insertion
);
3586 edit_insert (edit
, char_for_insertion
);
3588 if (option_auto_para_formatting
)
3590 format_paragraph (edit
, 0);
3591 edit
->force
|= REDRAW_PAGE
;
3594 check_and_wrap_line (edit
);
3595 edit
->found_len
= 0;
3596 edit
->prev_col
= edit_get_col (edit
);
3597 edit
->search_start
= edit
->curs1
;
3598 edit_find_bracket (edit
);
3604 case CK_TopOnScreen
:
3605 case CK_BottomOnScreen
:
3618 if (edit
->mark2
>= 0)
3620 if (!option_persistent_selections
)
3622 if (edit
->column_highlight
)
3623 edit_push_undo_action (edit
, COLUMN_ON
);
3624 edit
->column_highlight
= 0;
3625 edit_mark_cmd (edit
, 1);
3632 case CK_TopOnScreen
:
3633 case CK_BottomOnScreen
:
3634 case CK_MarkToPageBegin
:
3635 case CK_MarkToPageEnd
:
3640 case CK_MarkToWordBegin
:
3641 case CK_MarkToWordEnd
:
3644 case CK_MarkColumnUp
:
3645 case CK_MarkColumnDown
:
3646 if (edit
->mark2
== -1)
3647 break; /*marking is following the cursor: may need to highlight a whole line */
3652 edit
->force
|= REDRAW_CHAR_ONLY
;
3655 /* basic cursor key commands */
3659 /* if non persistent selection and text selected */
3660 if (!option_persistent_selections
)
3662 if (edit
->mark1
!= edit
->mark2
)
3664 edit_block_delete_cmd (edit
);
3668 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3673 if (option_backspace_through_tabs
&& is_in_indent (edit
))
3675 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n' && edit
->curs1
> 0)
3676 edit_backspace (edit
, 1);
3681 if (option_fake_half_tabs
)
3684 if (is_in_indent (edit
) && right_of_four_spaces (edit
))
3686 for (i
= 0; i
< HALF_TAB_SIZE
; i
++)
3687 edit_backspace (edit
, 1);
3692 edit_backspace (edit
, 0);
3695 /* if non persistent selection and text selected */
3696 if (!option_persistent_selections
)
3698 if (edit
->mark1
!= edit
->mark2
)
3700 edit_block_delete_cmd (edit
);
3705 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3706 edit_insert_over (edit
);
3708 if (option_fake_half_tabs
)
3711 if (is_in_indent (edit
) && left_of_four_spaces (edit
))
3713 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
3714 edit_delete (edit
, 1);
3718 edit_delete (edit
, 0);
3720 case CK_DeleteToWordBegin
:
3722 edit_left_delete_word (edit
);
3724 case CK_DeleteToWordEnd
:
3725 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3726 edit_insert_over (edit
);
3728 edit_right_delete_word (edit
);
3731 edit_delete_line (edit
);
3733 case CK_DeleteToHome
:
3734 edit_delete_to_line_begin (edit
);
3736 case CK_DeleteToEnd
:
3737 edit_delete_to_line_end (edit
);
3741 if (option_auto_para_formatting
)
3743 edit_double_newline (edit
);
3744 if (option_return_does_auto_indent
)
3745 edit_auto_indent (edit
);
3746 format_paragraph (edit
, 0);
3750 edit_insert (edit
, '\n');
3751 if (option_return_does_auto_indent
)
3753 edit_auto_indent (edit
);
3758 edit_insert (edit
, '\n');
3761 case CK_MarkColumnPageUp
:
3762 edit
->column_highlight
= 1;
3765 edit_move_up (edit
, edit
->widget
.lines
- 1, 1);
3767 case CK_MarkColumnPageDown
:
3768 edit
->column_highlight
= 1;
3770 case CK_MarkPageDown
:
3771 edit_move_down (edit
, edit
->widget
.lines
- 1, 1);
3773 case CK_MarkColumnLeft
:
3774 edit
->column_highlight
= 1;
3777 if (option_fake_half_tabs
)
3779 if (is_in_indent (edit
) && right_of_four_spaces (edit
))
3781 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3784 edit_cursor_move (edit
, -HALF_TAB_SIZE
);
3785 edit
->force
&= (0xFFF - REDRAW_CHAR_ONLY
);
3789 edit_left_char_move_cmd (edit
);
3791 case CK_MarkColumnRight
:
3792 edit
->column_highlight
= 1;
3795 if (option_fake_half_tabs
)
3797 if (is_in_indent (edit
) && left_of_four_spaces (edit
))
3799 edit_cursor_move (edit
, HALF_TAB_SIZE
);
3800 edit
->force
&= (0xFFF - REDRAW_CHAR_ONLY
);
3804 edit_right_char_move_cmd (edit
);
3806 case CK_TopOnScreen
:
3807 case CK_MarkToPageBegin
:
3808 edit_begin_page (edit
);
3810 case CK_BottomOnScreen
:
3811 case CK_MarkToPageEnd
:
3812 edit_end_page (edit
);
3815 case CK_MarkToWordBegin
:
3817 edit_left_word_move_cmd (edit
);
3820 case CK_MarkToWordEnd
:
3822 edit_right_word_move_cmd (edit
);
3824 case CK_MarkColumnUp
:
3825 edit
->column_highlight
= 1;
3828 edit_move_up (edit
, 1, 0);
3830 case CK_MarkColumnDown
:
3831 edit
->column_highlight
= 1;
3834 edit_move_down (edit
, 1, 0);
3836 case CK_MarkColumnParagraphUp
:
3837 edit
->column_highlight
= 1;
3838 case CK_ParagraphUp
:
3839 case CK_MarkParagraphUp
:
3840 edit_move_up_paragraph (edit
, 0);
3842 case CK_MarkColumnParagraphDown
:
3843 edit
->column_highlight
= 1;
3844 case CK_ParagraphDown
:
3845 case CK_MarkParagraphDown
:
3846 edit_move_down_paragraph (edit
, 0);
3848 case CK_MarkColumnScrollUp
:
3849 edit
->column_highlight
= 1;
3851 case CK_MarkScrollUp
:
3852 edit_move_up (edit
, 1, 1);
3854 case CK_MarkColumnScrollDown
:
3855 edit
->column_highlight
= 1;
3857 case CK_MarkScrollDown
:
3858 edit_move_down (edit
, 1, 1);
3862 edit_cursor_to_bol (edit
);
3866 edit_cursor_to_eol (edit
);
3869 /* if text marked shift block */
3870 if (edit
->mark1
!= edit
->mark2
&& !option_persistent_selections
)
3872 if (edit
->mark2
< 0)
3873 edit_mark_cmd (edit
, 0);
3874 edit_move_block_to_right (edit
);
3878 if (option_cursor_beyond_eol
)
3879 edit_insert_over (edit
);
3880 edit_tab_cmd (edit
);
3881 if (option_auto_para_formatting
)
3883 format_paragraph (edit
, 0);
3884 edit
->force
|= REDRAW_PAGE
;
3888 check_and_wrap_line (edit
);
3893 case CK_InsertOverwrite
:
3894 edit
->overwrite
= !edit
->overwrite
;
3898 if (edit
->mark2
>= 0)
3900 if (edit
->column_highlight
)
3901 edit_push_undo_action (edit
, COLUMN_ON
);
3902 edit
->column_highlight
= 0;
3904 edit_mark_cmd (edit
, 0);
3907 if (!edit
->column_highlight
)
3908 edit_push_undo_action (edit
, COLUMN_OFF
);
3909 edit
->column_highlight
= 1;
3910 edit_mark_cmd (edit
, 0);
3913 edit_set_markers (edit
, 0, edit
->last_byte
, 0, 0);
3914 edit
->force
|= REDRAW_PAGE
;
3917 if (edit
->column_highlight
)
3918 edit_push_undo_action (edit
, COLUMN_ON
);
3919 edit
->column_highlight
= 0;
3920 edit_mark_cmd (edit
, 1);
3923 if (edit
->column_highlight
)
3924 edit_push_undo_action (edit
, COLUMN_ON
);
3925 edit
->column_highlight
= 0;
3926 edit_mark_current_word_cmd (edit
);
3929 if (edit
->column_highlight
)
3930 edit_push_undo_action (edit
, COLUMN_ON
);
3931 edit
->column_highlight
= 0;
3932 edit_mark_current_line_cmd (edit
);
3936 book_mark_clear (edit
, edit
->curs_line
, BOOK_MARK_FOUND_COLOR
);
3937 if (book_mark_query_color (edit
, edit
->curs_line
, BOOK_MARK_COLOR
))
3938 book_mark_clear (edit
, edit
->curs_line
, BOOK_MARK_COLOR
);
3940 book_mark_insert (edit
, edit
->curs_line
, BOOK_MARK_COLOR
);
3942 case CK_BookmarkFlush
:
3943 book_mark_flush (edit
, BOOK_MARK_COLOR
);
3944 book_mark_flush (edit
, BOOK_MARK_FOUND_COLOR
);
3945 edit
->force
|= REDRAW_PAGE
;
3947 case CK_BookmarkNext
:
3948 if (edit
->book_mark
)
3950 struct _book_mark
*p
;
3951 p
= (struct _book_mark
*) book_mark_find (edit
, edit
->curs_line
);
3955 if (p
->line
>= edit
->start_line
+ edit
->widget
.lines
|| p
->line
< edit
->start_line
)
3956 edit_move_display (edit
, p
->line
- edit
->widget
.lines
/ 2);
3957 edit_move_to_line (edit
, p
->line
);
3961 case CK_BookmarkPrev
:
3962 if (edit
->book_mark
)
3964 struct _book_mark
*p
;
3965 p
= (struct _book_mark
*) book_mark_find (edit
, edit
->curs_line
);
3966 while (p
->line
== edit
->curs_line
)
3971 if (p
->line
>= edit
->start_line
+ edit
->widget
.lines
|| p
->line
< edit
->start_line
)
3972 edit_move_display (edit
, p
->line
- edit
->widget
.lines
/ 2);
3973 edit_move_to_line (edit
, p
->line
);
3979 case CK_MarkToFileBegin
:
3980 edit_move_to_top (edit
);
3983 case CK_MarkToFileEnd
:
3984 edit_move_to_bottom (edit
);
3988 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3989 edit_insert_over (edit
);
3990 edit_block_copy_cmd (edit
);
3993 edit_block_delete_cmd (edit
);
3996 edit_block_move_cmd (edit
);
3999 case CK_BlockShiftLeft
:
4000 if (edit
->mark1
!= edit
->mark2
)
4001 edit_move_block_to_left (edit
);
4003 case CK_BlockShiftRight
:
4004 if (edit
->mark1
!= edit
->mark2
)
4005 edit_move_block_to_right (edit
);
4008 edit_copy_to_X_buf_cmd (edit
);
4011 edit_cut_to_X_buf_cmd (edit
);
4014 /* if non persistent selection and text selected */
4015 if (!option_persistent_selections
)
4017 if (edit
->mark1
!= edit
->mark2
)
4018 edit_block_delete_cmd (edit
);
4020 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
4021 edit_insert_over (edit
);
4022 edit_paste_from_X_buf_cmd (edit
);
4025 edit_paste_from_history (edit
);
4029 edit_save_as_cmd (edit
);
4032 edit_save_confirm_cmd (edit
);
4035 edit_save_block_cmd (edit
);
4038 edit_insert_file_cmd (edit
);
4042 edit_load_back_cmd (edit
);
4045 edit_load_forward_cmd (edit
);
4048 case CK_SyntaxChoose
:
4049 edit_syntax_dialog (edit
);
4053 edit_search_cmd (edit
, FALSE
);
4055 case CK_SearchContinue
:
4056 edit_search_cmd (edit
, TRUE
);
4059 edit_replace_cmd (edit
, 0);
4061 case CK_ReplaceContinue
:
4062 edit_replace_cmd (edit
, 1);
4065 /* if text marked shift block */
4066 if (edit
->mark1
!= edit
->mark2
&& !option_persistent_selections
)
4068 edit_move_block_to_left (edit
);
4072 edit_complete_word_cmd (edit
);
4076 edit_get_match_keyword_cmd (edit
);
4081 /* fool gcc to prevent a Y2K warning */
4082 char time_format
[] = "_c";
4083 time_format
[0] = '%';
4085 FMT_LOCALTIME_CURRENT (s
, sizeof (s
), time_format
);
4086 edit_print_string (edit
, s
);
4087 edit
->force
|= REDRAW_PAGE
;
4092 edit_goto_cmd (edit
);
4094 case CK_ParagraphFormat
:
4095 format_paragraph (edit
, 1);
4096 edit
->force
|= REDRAW_PAGE
;
4098 case CK_MacroDelete
:
4099 edit_delete_macro_cmd (edit
);
4101 case CK_MatchBracket
:
4102 edit_goto_matching_bracket (edit
);
4105 user_menu (edit
, NULL
, -1);
4108 edit_sort_cmd (edit
);
4110 case CK_ExternalCommand
:
4111 edit_ext_cmd (edit
);
4114 edit_mail_dialog (edit
);
4117 case CK_SelectCodepage
:
4118 edit_select_codepage_cmd (edit
);
4121 case CK_InsertLiteral
:
4122 edit_insert_literal_cmd (edit
);
4124 case CK_MacroStartStopRecord
:
4125 edit_begin_end_macro_cmd (edit
);
4127 case CK_RepeatStartStopRecord
:
4128 edit_begin_end_repeat_cmd (edit
);
4130 case CK_ExtendedKeyMap
:
4131 edit
->extmod
= TRUE
;
4138 if ((command
/ CK_PipeBlock (0)) == 1)
4139 edit_block_process_cmd (edit
, command
- CK_PipeBlock (0));
4141 /* keys which must set the col position, and the search vars */
4145 case CK_SearchContinue
:
4147 case CK_ReplaceContinue
:
4149 edit
->prev_col
= edit_get_col (edit
);
4153 case CK_MarkColumnUp
:
4156 case CK_MarkColumnDown
:
4159 case CK_MarkColumnPageUp
:
4161 case CK_MarkPageDown
:
4162 case CK_MarkColumnPageDown
:
4164 case CK_MarkToFileBegin
:
4166 case CK_MarkToFileEnd
:
4167 case CK_ParagraphUp
:
4168 case CK_MarkParagraphUp
:
4169 case CK_MarkColumnParagraphUp
:
4170 case CK_ParagraphDown
:
4171 case CK_MarkParagraphDown
:
4172 case CK_MarkColumnParagraphDown
:
4174 case CK_MarkScrollUp
:
4175 case CK_MarkColumnScrollUp
:
4177 case CK_MarkScrollDown
:
4178 case CK_MarkColumnScrollDown
:
4179 edit
->search_start
= edit
->curs1
;
4180 edit
->found_len
= 0;
4183 edit
->found_len
= 0;
4184 edit
->prev_col
= edit_get_col (edit
);
4185 edit
->search_start
= edit
->curs1
;
4187 edit_find_bracket (edit
);
4189 if (option_auto_para_formatting
)
4195 case CK_DeleteToWordBegin
:
4196 case CK_DeleteToWordEnd
:
4197 case CK_DeleteToHome
:
4198 case CK_DeleteToEnd
:
4199 format_paragraph (edit
, 0);
4200 edit
->force
|= REDRAW_PAGE
;
4205 /* --------------------------------------------------------------------------------------------- */
4208 edit_stack_init (void)
4210 for (edit_stack_iterator
= 0; edit_stack_iterator
< MAX_HISTORY_MOVETO
; edit_stack_iterator
++)
4212 edit_history_moveto
[edit_stack_iterator
].filename_vpath
= NULL
;
4213 edit_history_moveto
[edit_stack_iterator
].line
= -1;
4216 edit_stack_iterator
= 0;
4219 /* --------------------------------------------------------------------------------------------- */
4222 edit_stack_free (void)
4224 for (edit_stack_iterator
= 0; edit_stack_iterator
< MAX_HISTORY_MOVETO
; edit_stack_iterator
++)
4225 vfs_path_free (edit_history_moveto
[edit_stack_iterator
].filename_vpath
);
4228 /* --------------------------------------------------------------------------------------------- */
4232 edit_move_up (WEdit
* edit
, unsigned long i
, int do_scroll
)
4234 edit_move_updown (edit
, i
, do_scroll
, TRUE
);
4237 /* --------------------------------------------------------------------------------------------- */
4241 edit_move_down (WEdit
* edit
, unsigned long i
, int do_scroll
)
4243 edit_move_updown (edit
, i
, do_scroll
, FALSE
);
4246 /* --------------------------------------------------------------------------------------------- */