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, 2013
6 The Free Software Foundation, Inc.
10 Ilia Maslakov <il.smind@gmail.com> 2009, 2010, 2011
11 Andrew Borodin <aborodin@vmail.ru> 2012, 2013
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/learn.h" /* learn_keys */
68 #include "src/keybind-defaults.h"
70 #include "edit-impl.h"
71 #include "editwidget.h"
76 /*** global variables ****************************************************************************/
78 int option_word_wrap_line_length
= DEFAULT_WRAP_LINE_LENGTH
;
79 int option_typewriter_wrap
= 0;
80 int option_auto_para_formatting
= 0;
81 int option_fill_tabs_with_spaces
= 0;
82 int option_return_does_auto_indent
= 1;
83 int option_backspace_through_tabs
= 0;
84 int option_fake_half_tabs
= 1;
85 int option_save_mode
= EDIT_QUICK_SAVE
;
86 int option_save_position
= 1;
87 int option_max_undo
= 32768;
88 int option_persistent_selections
= 1;
89 int option_cursor_beyond_eol
= 0;
90 int option_line_state
= 0;
91 int option_line_state_width
= 0;
92 gboolean option_cursor_after_inserted_block
= FALSE
;
94 int option_edit_right_extreme
= 0;
95 int option_edit_left_extreme
= 0;
96 int option_edit_top_extreme
= 0;
97 int option_edit_bottom_extreme
= 0;
98 int enable_show_tabs_tws
= 1;
99 int option_check_nl_at_eof
= 0;
100 int option_group_undo
= 0;
101 int show_right_margin
= 0;
103 const char *option_whole_chars_search
= "0123456789abcdefghijklmnopqrstuvwxyz_";
104 char *option_backup_ext
= NULL
;
106 unsigned int edit_stack_iterator
= 0;
107 edit_stack_type edit_history_moveto
[MAX_HISTORY_MOVETO
];
108 /* magic sequense for say than block is vertical */
109 const char VERTICAL_MAGIC
[] = { '\1', '\1', '\1', '\1', '\n' };
111 /*** file scope macro definitions ****************************************************************/
113 #define TEMP_BUF_LEN 1024
115 #define space_width 1
117 /*** file scope type declarations ****************************************************************/
119 /*** file scope variables ************************************************************************/
121 /* detecting an error on save is easy: just check if every byte has been written. */
122 /* detecting an error on read, is not so easy 'cos there is not way to tell
123 whether you read everything or not. */
124 /* FIXME: add proper `triple_pipe_open' to read, write and check errors. */
125 static const struct edit_filters
127 const char *read
, *write
, *extension
;
131 { "xz -cd %s 2>&1", "xz > %s", ".xz"},
132 { "lzma -cd %s 2>&1", "lzma > %s", ".lzma" },
133 { "bzip2 -cd %s 2>&1", "bzip2 > %s", ".bz2" },
134 { "gzip -cd %s 2>&1", "gzip > %s", ".gz" },
135 { "gzip -cd %s 2>&1", "gzip > %s", ".Z" }
139 static off_t last_bracket
= -1;
141 /*** file scope functions ************************************************************************/
142 /* --------------------------------------------------------------------------------------------- */
146 * here's a quick sketch of the layout: (don't run this through indent.)
148 * (b1 is buffers1 and b2 is buffers2)
151 * \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
152 * ______________________________________|______________________________________
154 * ... | b2[2] | b2[1] | b2[0] | b1[0] | b1[1] | b1[2] | ...
155 * |-> |-> |-> |-> |-> |-> |
157 * _<------------------------->|<----------------->_
158 * WEdit->curs2 | WEdit->curs1
163 * file end|||file beginning
172 /* --------------------------------------------------------------------------------------------- */
174 * Initialize the buffers for an empty files.
178 edit_init_buffers (WEdit
* edit
)
182 for (j
= 0; j
<= MAXBUFF
; j
++)
184 edit
->buffers1
[j
] = NULL
;
185 edit
->buffers2
[j
] = NULL
;
190 edit
->buffers2
[0] = g_malloc0 (EDIT_BUF_SIZE
);
193 /* --------------------------------------------------------------------------------------------- */
196 * Load file OR text into buffers. Set cursor to the beginning of file.
198 * @return FALSE on error.
202 edit_load_file_fast (WEdit
* edit
, const vfs_path_t
* filename_vpath
)
206 gboolean ret
= FALSE
;
208 edit
->curs2
= edit
->last_byte
;
209 buf2
= edit
->curs2
>> S_EDIT_BUF_SIZE
;
211 file
= mc_open (filename_vpath
, O_RDONLY
| O_BINARY
);
214 gchar
*errmsg
, *filename
;
216 filename
= vfs_path_to_str (filename_vpath
);
217 errmsg
= g_strdup_printf (_("Cannot open %s for reading"), filename
);
219 edit_error_dialog (_("Error"), errmsg
);
224 if (!edit
->buffers2
[buf2
])
225 edit
->buffers2
[buf2
] = g_malloc0 (EDIT_BUF_SIZE
);
230 (char *) edit
->buffers2
[buf2
] + EDIT_BUF_SIZE
-
231 (edit
->curs2
& M_EDIT_BUF_SIZE
), edit
->curs2
& M_EDIT_BUF_SIZE
) < 0)
234 for (buf
= buf2
- 1; buf
>= 0; buf
--)
236 /* edit->buffers2[0] is already allocated */
237 if (!edit
->buffers2
[buf
])
238 edit
->buffers2
[buf
] = g_malloc0 (EDIT_BUF_SIZE
);
239 if (mc_read (file
, (char *) edit
->buffers2
[buf
], EDIT_BUF_SIZE
) < 0)
248 gchar
*errmsg
, *filename
;
250 filename
= vfs_path_to_str (filename_vpath
);
251 errmsg
= g_strdup_printf (_("Error reading %s"), filename
);
253 edit_error_dialog (_("Error"), errmsg
);
260 /* --------------------------------------------------------------------------------------------- */
261 /** Return index of the filter or -1 is there is no appropriate filter */
264 edit_find_filter (const vfs_path_t
* filename_vpath
)
269 if (filename_vpath
== NULL
)
272 filename
= vfs_path_to_str (filename_vpath
);
273 l
= strlen (filename
);
274 for (i
= 0; i
< sizeof (all_filters
) / sizeof (all_filters
[0]); i
++)
276 e
= strlen (all_filters
[i
].extension
);
278 if (!strcmp (all_filters
[i
].extension
, filename
+ l
- e
))
288 /* --------------------------------------------------------------------------------------------- */
291 edit_get_filter (const vfs_path_t
* filename_vpath
)
294 char *p
, *quoted_name
, *filename
;
296 i
= edit_find_filter (filename_vpath
);
300 filename
= vfs_path_to_str (filename_vpath
);
301 quoted_name
= name_quote (filename
, 0);
303 p
= g_strdup_printf (all_filters
[i
].read
, quoted_name
);
304 g_free (quoted_name
);
308 /* --------------------------------------------------------------------------------------------- */
311 edit_insert_stream (WEdit
* edit
, FILE * f
)
315 while ((c
= fgetc (f
)) >= 0)
317 edit_insert (edit
, c
);
323 /* --------------------------------------------------------------------------------------------- */
325 * Open file and create it if necessary.
327 * @param edit editor object
328 * @param filename_vpath file name
329 * @param st buffer for store stat info
330 * @return TRUE for success, FALSE for error.
334 check_file_access (WEdit
* edit
, const vfs_path_t
* filename_vpath
, struct stat
*st
)
337 gchar
*errmsg
= NULL
;
339 /* Try opening an existing file */
340 file
= mc_open (filename_vpath
, O_NONBLOCK
| O_RDONLY
| O_BINARY
, 0666);
344 * Try creating the file. O_EXCL prevents following broken links
345 * and opening existing files.
347 file
= mc_open (filename_vpath
, O_NONBLOCK
| O_RDONLY
| O_BINARY
| O_CREAT
| O_EXCL
, 0666);
352 filename
= vfs_path_to_str (filename_vpath
);
353 errmsg
= g_strdup_printf (_("Cannot open %s for reading"), filename
);
358 /* New file, delete it if it's not modified or saved */
359 edit
->delete_file
= 1;
362 /* Check what we have opened */
363 if (mc_fstat (file
, st
) < 0)
367 filename
= vfs_path_to_str (filename_vpath
);
368 errmsg
= g_strdup_printf (_("Cannot get size/permissions for %s"), filename
);
373 /* We want to open regular files only */
374 if (!S_ISREG (st
->st_mode
))
378 filename
= vfs_path_to_str (filename_vpath
);
379 errmsg
= g_strdup_printf (_("\"%s\" is not a regular file"), filename
);
385 * Don't delete non-empty files.
386 * O_EXCL should prevent it, but let's be on the safe side.
389 edit
->delete_file
= 0;
391 if (st
->st_size
>= SIZE_LIMIT
)
395 filename
= vfs_path_to_str (filename_vpath
);
396 errmsg
= g_strdup_printf (_("File \"%s\" is too large"), filename
);
401 (void) mc_close (file
);
405 edit_error_dialog (_("Error"), errmsg
);
412 /* --------------------------------------------------------------------------------------------- */
415 * Open the file and load it into the buffers, either directly or using
416 * a filter. Return TRUE on success, FALSE on error.
418 * Fast loading (edit_load_file_fast) is used when the file size is
419 * known. In this case the data is read into the buffers by blocks.
420 * If the file size is not known, the data is loaded byte by byte in
423 * @param edit editor object
424 * @return TRUE if file was successfully opened and loaded to buffers, FALSE otherwise
427 edit_load_file (WEdit
* edit
)
429 gboolean fast_load
= TRUE
;
431 /* Cannot do fast load if a filter is used */
432 if (edit_find_filter (edit
->filename_vpath
) >= 0)
436 * FIXME: line end translation should disable fast loading as well
437 * Consider doing fseek() to the end and ftell() for the real size.
439 if (edit
->filename_vpath
!= NULL
)
442 * VFS may report file size incorrectly, and slow load is not a big
443 * deal considering overhead in VFS.
445 if (!vfs_file_is_local (edit
->filename_vpath
))
448 /* If we are dealing with a real file, check that it exists */
449 if (!check_file_access (edit
, edit
->filename_vpath
, &edit
->stat1
))
457 /* nothing to load */
461 edit_init_buffers (edit
);
465 edit
->last_byte
= edit
->stat1
.st_size
;
466 edit_load_file_fast (edit
, edit
->filename_vpath
);
467 /* If fast load was used, the number of lines wasn't calculated */
468 edit
->total_lines
= edit_count_lines (edit
, 0, edit
->last_byte
);
473 if (edit
->filename_vpath
!= NULL
474 && *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) != '\0')
476 edit
->undo_stack_disable
= 1;
477 if (edit_insert_file (edit
, edit
->filename_vpath
) < 0)
482 edit
->undo_stack_disable
= 0;
489 /* --------------------------------------------------------------------------------------------- */
490 /** Restore saved cursor position in the file */
493 edit_load_position (WEdit
* edit
)
498 if (edit
->filename_vpath
== NULL
499 || *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) == '\0')
502 load_file_position (edit
->filename_vpath
, &line
, &column
, &offset
, &edit
->serialized_bookmarks
);
506 edit_move_to_line (edit
, line
- 1);
507 edit
->prev_col
= column
;
511 edit_cursor_move (edit
, offset
);
512 line
= edit
->curs_line
;
513 edit
->search_start
= edit
->curs1
;
516 book_mark_restore (edit
, BOOK_MARK_COLOR
);
518 edit_move_to_prev_col (edit
, edit_bol (edit
, edit
->curs1
));
519 edit_move_display (edit
, line
- (WIDGET (edit
)->lines
/ 2));
522 /* --------------------------------------------------------------------------------------------- */
523 /** Save cursor position in the file */
526 edit_save_position (WEdit
* edit
)
528 if (edit
->filename_vpath
== NULL
529 || *(vfs_path_get_by_index (edit
->filename_vpath
, 0)->path
) == '\0')
532 book_mark_serialize (edit
, BOOK_MARK_COLOR
);
533 save_file_position (edit
->filename_vpath
, edit
->curs_line
+ 1, edit
->curs_col
, edit
->curs1
,
534 edit
->serialized_bookmarks
);
535 edit
->serialized_bookmarks
= NULL
;
538 /* --------------------------------------------------------------------------------------------- */
539 /** Clean the WEdit stricture except the widget part */
542 edit_purge_widget (WEdit
* edit
)
544 size_t len
= sizeof (WEdit
) - sizeof (Widget
);
545 char *start
= (char *) edit
+ sizeof (Widget
);
546 memset (start
, 0, len
);
549 /* --------------------------------------------------------------------------------------------- */
552 TODO: if the user undos until the stack bottom, and the stack has not wrapped,
553 then the file should be as it was when he loaded up. Then set edit->modified to 0.
557 edit_pop_undo_action (WEdit
* edit
)
560 unsigned long sp
= edit
->undo_stack_pointer
;
562 if (sp
== edit
->undo_stack_bottom
)
565 sp
= (sp
- 1) & edit
->undo_stack_size_mask
;
566 c
= edit
->undo_stack
[sp
];
569 /* edit->undo_stack[sp] = '@'; */
570 edit
->undo_stack_pointer
= (edit
->undo_stack_pointer
- 1) & edit
->undo_stack_size_mask
;
574 if (sp
== edit
->undo_stack_bottom
)
577 c
= edit
->undo_stack
[(sp
- 1) & edit
->undo_stack_size_mask
];
578 if (edit
->undo_stack
[sp
] == -2)
580 /* edit->undo_stack[sp] = '@'; */
581 edit
->undo_stack_pointer
= sp
;
584 edit
->undo_stack
[sp
]++;
590 edit_pop_redo_action (WEdit
* edit
)
593 unsigned long sp
= edit
->redo_stack_pointer
;
595 if (sp
== edit
->redo_stack_bottom
)
598 sp
= (sp
- 1) & edit
->redo_stack_size_mask
;
599 c
= edit
->redo_stack
[sp
];
602 edit
->redo_stack_pointer
= (edit
->redo_stack_pointer
- 1) & edit
->redo_stack_size_mask
;
606 if (sp
== edit
->redo_stack_bottom
)
609 c
= edit
->redo_stack
[(sp
- 1) & edit
->redo_stack_size_mask
];
610 if (edit
->redo_stack
[sp
] == -2)
611 edit
->redo_stack_pointer
= sp
;
613 edit
->redo_stack
[sp
]++;
619 get_prev_undo_action (WEdit
* edit
)
622 unsigned long sp
= edit
->undo_stack_pointer
;
624 if (sp
== edit
->undo_stack_bottom
)
627 sp
= (sp
- 1) & edit
->undo_stack_size_mask
;
628 c
= edit
->undo_stack
[sp
];
632 if (sp
== edit
->undo_stack_bottom
)
635 c
= edit
->undo_stack
[(sp
- 1) & edit
->undo_stack_size_mask
];
639 /* --------------------------------------------------------------------------------------------- */
640 /** is called whenever a modification is made by one of the four routines below */
643 edit_modification (WEdit
* edit
)
645 edit
->caches_valid
= FALSE
;
647 /* raise lock when file modified */
648 if (!edit
->modified
&& !edit
->delete_file
)
649 edit
->locked
= lock_file (edit
->filename_vpath
);
653 /* --------------------------------------------------------------------------------------------- */
656 edit_get_byte_ptr (const WEdit
* edit
, off_t byte_index
)
658 if (byte_index
>= (edit
->curs1
+ edit
->curs2
) || byte_index
< 0)
661 if (byte_index
>= edit
->curs1
)
665 p
= edit
->curs1
+ edit
->curs2
- byte_index
- 1;
666 return (char *) (edit
->buffers2
[p
>> S_EDIT_BUF_SIZE
] +
667 (EDIT_BUF_SIZE
- (p
& M_EDIT_BUF_SIZE
) - 1));
670 return (char *) (edit
->buffers1
[byte_index
>> S_EDIT_BUF_SIZE
] +
671 (byte_index
& M_EDIT_BUF_SIZE
));
674 /* --------------------------------------------------------------------------------------------- */
678 edit_get_prev_utf (const WEdit
* edit
, off_t 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
;
721 /* --------------------------------------------------------------------------------------------- */
722 /* high level cursor movement commands */
723 /* --------------------------------------------------------------------------------------------- */
724 /** check whether cursor is in indent part of line
726 * @param edit editor object
728 * @return TRUE if cursor is in indent, FALSE otherwise
732 is_in_indent (const WEdit
* edit
)
736 for (p
= edit_bol (edit
, edit
->curs1
); p
< edit
->curs1
; p
++)
737 if (strchr (" \t", edit_get_byte (edit
, p
)) == NULL
)
743 /* --------------------------------------------------------------------------------------------- */
744 /** check whether line in editor is blank or not
746 * @param edit editor object
747 * @param offset position in file
749 * @return TRUE if line in blank, FALSE otherwise
753 is_blank (const WEdit
* edit
, off_t offset
)
758 s
= edit_bol (edit
, offset
);
759 f
= edit_eol (edit
, offset
) - 1;
762 c
= edit_get_byte (edit
, s
++);
769 /* --------------------------------------------------------------------------------------------- */
770 /** returns the offset of line i */
773 edit_find_line (WEdit
* edit
, long line
)
776 long m
= 2000000000; /* what is the magic number? */
778 if (!edit
->caches_valid
)
780 memset (edit
->line_numbers
, 0, sizeof (edit
->line_numbers
));
781 memset (edit
->line_offsets
, 0, sizeof (edit
->line_offsets
));
782 /* three offsets that we *know* are line 0 at 0 and these two: */
783 edit
->line_numbers
[1] = edit
->curs_line
;
784 edit
->line_offsets
[1] = edit_bol (edit
, edit
->curs1
);
785 edit
->line_numbers
[2] = edit
->total_lines
;
786 edit
->line_offsets
[2] = edit_bol (edit
, edit
->last_byte
);
787 edit
->caches_valid
= TRUE
;
789 if (line
>= edit
->total_lines
)
790 return edit
->line_offsets
[2];
793 /* find the closest known point */
794 for (i
= 0; i
< N_LINE_CACHES
; i
++)
798 n
= abs (edit
->line_numbers
[i
] - line
);
806 return edit
->line_offsets
[j
]; /* know the offset exactly */
807 if (m
== 1 && j
>= 3)
808 i
= j
; /* one line different - caller might be looping, so stay in this cache */
810 i
= 3 + (rand () % (N_LINE_CACHES
- 3));
811 if (line
> edit
->line_numbers
[j
])
812 edit
->line_offsets
[i
] =
813 edit_move_forward (edit
, edit
->line_offsets
[j
], line
- edit
->line_numbers
[j
], 0);
815 edit
->line_offsets
[i
] =
816 edit_move_backward (edit
, edit
->line_offsets
[j
], edit
->line_numbers
[j
] - line
);
817 edit
->line_numbers
[i
] = line
;
818 return edit
->line_offsets
[i
];
821 /* --------------------------------------------------------------------------------------------- */
822 /** moves up until a blank line is reached, or until just
823 before a non-blank line is reached */
826 edit_move_up_paragraph (WEdit
* edit
, gboolean do_scroll
)
830 if (edit
->curs_line
> 1)
832 if (!edit_line_is_blank (edit
, edit
->curs_line
))
834 for (i
= edit
->curs_line
- 1; i
!= 0; i
--)
835 if (edit_line_is_blank (edit
, i
))
838 else if (edit_line_is_blank (edit
, edit
->curs_line
- 1))
840 for (i
= edit
->curs_line
- 1; i
!= 0; i
--)
841 if (!edit_line_is_blank (edit
, i
))
849 for (i
= edit
->curs_line
- 1; i
!= 0; i
--)
850 if (edit_line_is_blank (edit
, i
))
855 edit_move_up (edit
, edit
->curs_line
- i
, do_scroll
);
858 /* --------------------------------------------------------------------------------------------- */
859 /** moves down until a blank line is reached, or until just
860 before a non-blank line is reached */
863 edit_move_down_paragraph (WEdit
* edit
, gboolean do_scroll
)
867 if (edit
->curs_line
>= edit
->total_lines
- 1)
868 i
= edit
->total_lines
;
869 else if (!edit_line_is_blank (edit
, edit
->curs_line
))
871 for (i
= edit
->curs_line
+ 1; i
!= 0; i
++)
872 if (edit_line_is_blank (edit
, i
) || i
>= edit
->total_lines
)
875 else if (edit_line_is_blank (edit
, edit
->curs_line
+ 1))
877 for (i
= edit
->curs_line
+ 1; i
!= 0; i
++)
878 if (!edit_line_is_blank (edit
, i
) || i
> edit
->total_lines
)
886 for (i
= edit
->curs_line
+ 1; i
!= 0; i
++)
887 if (edit_line_is_blank (edit
, i
) || i
>= edit
->total_lines
)
890 edit_move_down (edit
, i
- edit
->curs_line
, do_scroll
);
893 /* --------------------------------------------------------------------------------------------- */
896 edit_begin_page (WEdit
* edit
)
898 edit_update_curs_row (edit
);
899 edit_move_up (edit
, edit
->curs_row
, 0);
902 /* --------------------------------------------------------------------------------------------- */
905 edit_end_page (WEdit
* edit
)
907 edit_update_curs_row (edit
);
908 edit_move_down (edit
, WIDGET (edit
)->lines
- edit
->curs_row
- 1, 0);
912 /* --------------------------------------------------------------------------------------------- */
913 /** goto beginning of text */
916 edit_move_to_top (WEdit
* edit
)
920 edit_cursor_move (edit
, -edit
->curs1
);
921 edit_move_to_prev_col (edit
, 0);
922 edit
->force
|= REDRAW_PAGE
;
923 edit
->search_start
= 0;
924 edit_update_curs_row (edit
);
929 /* --------------------------------------------------------------------------------------------- */
930 /** goto end of text */
933 edit_move_to_bottom (WEdit
* edit
)
935 if (edit
->curs_line
< edit
->total_lines
)
937 edit_move_down (edit
, edit
->total_lines
- edit
->curs_row
, 0);
938 edit
->start_display
= edit
->last_byte
;
939 edit
->start_line
= edit
->total_lines
;
940 edit_scroll_upward (edit
, WIDGET (edit
)->lines
- 1);
941 edit
->force
|= REDRAW_PAGE
;
945 /* --------------------------------------------------------------------------------------------- */
946 /** goto beginning of line */
949 edit_cursor_to_bol (WEdit
* edit
)
951 edit_cursor_move (edit
, edit_bol (edit
, edit
->curs1
) - edit
->curs1
);
952 edit
->search_start
= edit
->curs1
;
953 edit
->prev_col
= edit_get_col (edit
);
957 /* --------------------------------------------------------------------------------------------- */
958 /** goto end of line */
961 edit_cursor_to_eol (WEdit
* edit
)
963 edit_cursor_move (edit
, edit_eol (edit
, edit
->curs1
) - edit
->curs1
);
964 edit
->search_start
= edit
->curs1
;
965 edit
->prev_col
= edit_get_col (edit
);
969 /* --------------------------------------------------------------------------------------------- */
976 const char option_chars_move_whole_word
[] =
977 "!=&|<>^~ !:;, !'!`!.?!\"!( !) !{ !} !Aa0 !+-*/= |<> ![ !] !\\#! ";
983 if (*option_chars_move_whole_word
== '!')
987 if (g_ascii_isupper ((gchar
) c
))
989 else if (g_ascii_islower ((gchar
) c
))
991 else if (g_ascii_isalpha (c
))
993 else if (isdigit (c
))
995 else if (isspace (c
))
997 q
= strchr (option_chars_move_whole_word
, c
);
1002 for (x
= 1, p
= option_chars_move_whole_word
; p
< q
; p
++)
1007 while ((q
= strchr (q
+ 1, c
)));
1011 /* --------------------------------------------------------------------------------------------- */
1014 edit_left_word_move (WEdit
* edit
, int s
)
1020 if (edit
->column_highlight
1021 && edit
->mark1
!= edit
->mark2
1022 && edit
->over_col
== 0 && edit
->curs1
== edit_bol (edit
, edit
->curs1
))
1024 edit_cursor_move (edit
, -1);
1025 if (edit
->curs1
== 0)
1027 c1
= edit_get_byte (edit
, edit
->curs1
- 1);
1028 c2
= edit_get_byte (edit
, edit
->curs1
);
1029 if (c1
== '\n' || c2
== '\n')
1031 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
1033 if (isspace (c1
) && !isspace (c2
))
1035 if (s
!= 0 && !isspace (c1
) && isspace (c2
))
1040 /* --------------------------------------------------------------------------------------------- */
1043 edit_left_word_move_cmd (WEdit
* edit
)
1045 edit_left_word_move (edit
, 0);
1046 edit
->force
|= REDRAW_PAGE
;
1049 /* --------------------------------------------------------------------------------------------- */
1052 edit_right_word_move (WEdit
* edit
, int s
)
1058 if (edit
->column_highlight
1059 && edit
->mark1
!= edit
->mark2
1060 && edit
->over_col
== 0 && edit
->curs1
== edit_eol (edit
, edit
->curs1
))
1062 edit_cursor_move (edit
, 1);
1063 if (edit
->curs1
>= edit
->last_byte
)
1065 c1
= edit_get_byte (edit
, edit
->curs1
- 1);
1066 c2
= edit_get_byte (edit
, edit
->curs1
);
1067 if (c1
== '\n' || c2
== '\n')
1069 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
1071 if (isspace (c1
) && !isspace (c2
))
1073 if (s
!= 0 && !isspace (c1
) && isspace (c2
))
1078 /* --------------------------------------------------------------------------------------------- */
1081 edit_right_word_move_cmd (WEdit
* edit
)
1083 edit_right_word_move (edit
, 0);
1084 edit
->force
|= REDRAW_PAGE
;
1087 /* --------------------------------------------------------------------------------------------- */
1090 edit_right_char_move_cmd (WEdit
* edit
)
1097 c
= edit_get_utf (edit
, edit
->curs1
, &cw
);
1104 c
= edit_get_byte (edit
, edit
->curs1
);
1106 if (option_cursor_beyond_eol
&& c
== '\n')
1112 edit_cursor_move (edit
, cw
);
1116 /* --------------------------------------------------------------------------------------------- */
1119 edit_left_char_move_cmd (WEdit
* edit
)
1122 if (edit
->column_highlight
1123 && option_cursor_beyond_eol
1124 && edit
->mark1
!= edit
->mark2
1125 && edit
->over_col
== 0 && edit
->curs1
== edit_bol (edit
, edit
->curs1
))
1130 edit_get_prev_utf (edit
, edit
->curs1
, &cw
);
1135 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
1141 edit_cursor_move (edit
, -cw
);
1145 /* --------------------------------------------------------------------------------------------- */
1146 /** Up or down cursor moving.
1147 direction = TRUE - move up
1152 edit_move_updown (WEdit
* edit
, long lines
, gboolean do_scroll
, gboolean direction
)
1155 long l
= direction
? edit
->curs_line
: edit
->total_lines
- edit
->curs_line
;
1164 edit
->force
|= REDRAW_PAGE
;
1168 edit_scroll_upward (edit
, lines
);
1170 edit_scroll_downward (edit
, lines
);
1172 p
= edit_bol (edit
, edit
->curs1
);
1174 p
= direction
? edit_move_backward (edit
, p
, lines
) : edit_move_forward (edit
, p
, lines
, 0);
1176 edit_cursor_move (edit
, p
- edit
->curs1
);
1178 edit_move_to_prev_col (edit
, p
);
1180 /* search start of current multibyte char (like CJK) */
1181 if (edit
->curs1
+ 1 < edit
->last_byte
)
1183 edit_right_char_move_cmd (edit
);
1184 edit_left_char_move_cmd (edit
);
1187 edit
->search_start
= edit
->curs1
;
1188 edit
->found_len
= 0;
1191 /* --------------------------------------------------------------------------------------------- */
1194 edit_right_delete_word (WEdit
* edit
)
1196 while (edit
->curs1
< edit
->last_byte
)
1200 c1
= edit_delete (edit
, TRUE
);
1201 c2
= edit_get_byte (edit
, edit
->curs1
);
1202 if (c1
== '\n' || c2
== '\n')
1204 if ((isspace (c1
) == 0) != (isspace (c2
) == 0))
1206 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
1211 /* --------------------------------------------------------------------------------------------- */
1214 edit_left_delete_word (WEdit
* edit
)
1216 while (edit
->curs1
> 0)
1220 c1
= edit_backspace (edit
, TRUE
);
1221 c2
= edit_get_byte (edit
, edit
->curs1
- 1);
1222 if (c1
== '\n' || c2
== '\n')
1224 if ((isspace (c1
) == 0) != (isspace (c2
) == 0))
1226 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
1231 /* --------------------------------------------------------------------------------------------- */
1233 the start column position is not recorded, and hence does not
1234 undo as it happed. But who would notice.
1238 edit_do_undo (WEdit
* edit
)
1243 edit
->undo_stack_disable
= 1; /* don't record undo's onto undo stack! */
1245 while ((ac
= edit_pop_undo_action (edit
)) < KEY_PRESS
)
1252 edit_cursor_move (edit
, 1);
1255 edit_cursor_move (edit
, -1);
1259 edit_backspace (edit
, TRUE
);
1263 edit_delete (edit
, TRUE
);
1266 edit
->column_highlight
= 1;
1269 edit
->column_highlight
= 0;
1272 if (ac
>= 256 && ac
< 512)
1273 edit_insert_ahead (edit
, ac
- 256);
1274 if (ac
>= 0 && ac
< 256)
1275 edit_insert (edit
, ac
);
1277 if (ac
>= MARK_1
- 2 && ac
< MARK_2
- 2)
1279 edit
->mark1
= ac
- MARK_1
;
1281 (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark1
), 0, edit
->mark1
);
1283 if (ac
>= MARK_2
- 2 && ac
< MARK_CURS
- 2)
1285 edit
->mark2
= ac
- MARK_2
;
1287 (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark2
), 0, edit
->mark2
);
1289 else if (ac
>= MARK_CURS
- 2 && ac
< KEY_PRESS
)
1291 edit
->end_mark_curs
= ac
- MARK_CURS
;
1294 edit
->force
|= REDRAW_PAGE
; /* more than one pop usually means something big */
1297 if (edit
->start_display
> ac
- KEY_PRESS
)
1299 edit
->start_line
-= edit_count_lines (edit
, ac
- KEY_PRESS
, edit
->start_display
);
1300 edit
->force
|= REDRAW_PAGE
;
1302 else if (edit
->start_display
< ac
- KEY_PRESS
)
1304 edit
->start_line
+= edit_count_lines (edit
, edit
->start_display
, ac
- KEY_PRESS
);
1305 edit
->force
|= REDRAW_PAGE
;
1307 edit
->start_display
= ac
- KEY_PRESS
; /* see push and pop above */
1308 edit_update_curs_row (edit
);
1311 edit
->undo_stack_disable
= 0;
1314 /* --------------------------------------------------------------------------------------------- */
1317 edit_do_redo (WEdit
* edit
)
1322 if (edit
->redo_stack_reset
)
1326 while ((ac
= edit_pop_redo_action (edit
)) < KEY_PRESS
)
1333 edit_cursor_move (edit
, 1);
1336 edit_cursor_move (edit
, -1);
1339 edit_backspace (edit
, TRUE
);
1342 edit_delete (edit
, TRUE
);
1345 edit
->column_highlight
= 1;
1348 edit
->column_highlight
= 0;
1351 if (ac
>= 256 && ac
< 512)
1352 edit_insert_ahead (edit
, ac
- 256);
1353 if (ac
>= 0 && ac
< 256)
1354 edit_insert (edit
, ac
);
1356 if (ac
>= MARK_1
- 2 && ac
< MARK_2
- 2)
1358 edit
->mark1
= ac
- MARK_1
;
1360 (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark1
), 0, edit
->mark1
);
1362 else if (ac
>= MARK_2
- 2 && ac
< KEY_PRESS
)
1364 edit
->mark2
= ac
- MARK_2
;
1366 (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->mark2
), 0, edit
->mark2
);
1368 /* more than one pop usually means something big */
1370 edit
->force
|= REDRAW_PAGE
;
1373 if (edit
->start_display
> ac
- KEY_PRESS
)
1375 edit
->start_line
-= edit_count_lines (edit
, ac
- KEY_PRESS
, edit
->start_display
);
1376 edit
->force
|= REDRAW_PAGE
;
1378 else if (edit
->start_display
< ac
- KEY_PRESS
)
1380 edit
->start_line
+= edit_count_lines (edit
, edit
->start_display
, ac
- KEY_PRESS
);
1381 edit
->force
|= REDRAW_PAGE
;
1383 edit
->start_display
= ac
- KEY_PRESS
; /* see push and pop above */
1384 edit_update_curs_row (edit
);
1390 /* --------------------------------------------------------------------------------------------- */
1393 edit_group_undo (WEdit
* edit
)
1395 long ac
= KEY_PRESS
;
1396 long cur_ac
= KEY_PRESS
;
1397 while (ac
!= STACK_BOTTOM
&& ac
== cur_ac
)
1399 cur_ac
= get_prev_undo_action (edit
);
1400 edit_do_undo (edit
);
1401 ac
= get_prev_undo_action (edit
);
1402 /* exit from cycle if option_group_undo is not set,
1403 * and make single UNDO operation
1405 if (!option_group_undo
)
1410 /* --------------------------------------------------------------------------------------------- */
1413 edit_delete_to_line_end (WEdit
* edit
)
1415 while (edit_get_byte (edit
, edit
->curs1
) != '\n' && edit
->curs2
!= 0)
1416 edit_delete (edit
, TRUE
);
1419 /* --------------------------------------------------------------------------------------------- */
1422 edit_delete_to_line_begin (WEdit
* edit
)
1424 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n' && edit
->curs1
!= 0)
1425 edit_backspace (edit
, TRUE
);
1428 /* --------------------------------------------------------------------------------------------- */
1431 is_aligned_on_a_tab (WEdit
* edit
)
1435 edit_update_curs_col (edit
);
1436 curs_col
= edit
->curs_col
% (TAB_SIZE
* space_width
);
1437 return (curs_col
== 0 || curs_col
== (HALF_TAB_SIZE
* space_width
));
1440 /* --------------------------------------------------------------------------------------------- */
1443 right_of_four_spaces (WEdit
* edit
)
1447 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
1448 ch
|= edit_get_byte (edit
, edit
->curs1
- i
);
1450 return (ch
== ' ' && is_aligned_on_a_tab (edit
));
1453 /* --------------------------------------------------------------------------------------------- */
1456 left_of_four_spaces (WEdit
* edit
)
1460 for (i
= 0; i
< HALF_TAB_SIZE
; i
++)
1461 ch
|= edit_get_byte (edit
, edit
->curs1
+ i
);
1463 return (ch
== ' ' && is_aligned_on_a_tab (edit
));
1466 /* --------------------------------------------------------------------------------------------- */
1469 edit_auto_indent (WEdit
* edit
)
1475 /* use the previous line as a template */
1476 p
= edit_move_backward (edit
, p
, 1);
1477 /* copy the leading whitespace of the line */
1479 { /* no range check - the line _is_ \n-terminated */
1480 c
= edit_get_byte (edit
, p
++);
1481 if (c
!= ' ' && c
!= '\t')
1483 edit_insert (edit
, c
);
1487 /* --------------------------------------------------------------------------------------------- */
1490 edit_double_newline (WEdit
* edit
)
1492 edit_insert (edit
, '\n');
1493 if (edit_get_byte (edit
, edit
->curs1
) == '\n' || edit_get_byte (edit
, edit
->curs1
- 2) == '\n')
1495 edit
->force
|= REDRAW_PAGE
;
1496 edit_insert (edit
, '\n');
1499 /* --------------------------------------------------------------------------------------------- */
1502 insert_spaces_tab (WEdit
* edit
, gboolean half
)
1506 edit_update_curs_col (edit
);
1507 i
= option_tab_spacing
* space_width
;
1512 i
= ((edit
->curs_col
/ i
) + 1) * i
- edit
->curs_col
;
1515 edit_insert (edit
, ' ');
1521 /* --------------------------------------------------------------------------------------------- */
1524 edit_tab_cmd (WEdit
* edit
)
1526 if (option_fake_half_tabs
&& is_in_indent (edit
))
1528 /* insert a half tab (usually four spaces) unless there is a
1529 half tab already behind, then delete it and insert a
1531 if (option_fill_tabs_with_spaces
|| !right_of_four_spaces (edit
))
1532 insert_spaces_tab (edit
, TRUE
);
1537 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
1538 edit_backspace (edit
, TRUE
);
1539 edit_insert (edit
, '\t');
1542 else if (option_fill_tabs_with_spaces
)
1543 insert_spaces_tab (edit
, FALSE
);
1545 edit_insert (edit
, '\t');
1548 /* --------------------------------------------------------------------------------------------- */
1551 check_and_wrap_line (WEdit
* edit
)
1556 if (!option_typewriter_wrap
)
1558 edit_update_curs_col (edit
);
1559 if (edit
->curs_col
< option_word_wrap_line_length
)
1565 c
= edit_get_byte (edit
, curs
);
1566 if (c
== '\n' || curs
<= 0)
1568 edit_insert (edit
, '\n');
1571 if (c
== ' ' || c
== '\t')
1573 off_t current
= edit
->curs1
;
1574 edit_cursor_move (edit
, curs
- edit
->curs1
+ 1);
1575 edit_insert (edit
, '\n');
1576 edit_cursor_move (edit
, current
- edit
->curs1
+ 1);
1582 /* --------------------------------------------------------------------------------------------- */
1583 /** this find the matching bracket in either direction, and sets edit->bracket
1585 * @param edit editor object
1586 * @param in_screen seach only on the current screen
1587 * @param furthest_bracket_search count of the bytes for search
1589 * @return position of the found bracket (-1 if no match)
1593 edit_get_bracket (WEdit
* edit
, gboolean in_screen
, unsigned long furthest_bracket_search
)
1595 const char *const b
= "{}{[][()(", *p
;
1596 int i
= 1, a
, inc
= -1, c
, d
, n
= 0;
1597 unsigned long j
= 0;
1599 edit_update_curs_row (edit
);
1600 c
= edit_get_byte (edit
, edit
->curs1
);
1603 if (!furthest_bracket_search
)
1604 furthest_bracket_search
--;
1605 /* not on a bracket at all */
1608 /* the matching bracket */
1610 /* going left or right? */
1611 if (strchr ("{[(", c
))
1613 for (q
= edit
->curs1
+ inc
;; q
+= inc
)
1615 /* out of buffer? */
1616 if (q
>= edit
->last_byte
|| q
< 0)
1618 a
= edit_get_byte (edit
, q
);
1619 /* don't want to eat CPU */
1620 if (j
++ > furthest_bracket_search
)
1622 /* out of screen? */
1625 if (q
< edit
->start_display
)
1627 /* count lines if searching downward */
1628 if (inc
> 0 && a
== '\n')
1629 if (n
++ >= WIDGET (edit
)->lines
- edit
->curs_row
) /* out of screen */
1632 /* count bracket depth */
1633 i
+= (a
== c
) - (a
== d
);
1634 /* return if bracket depth is zero */
1642 /* --------------------------------------------------------------------------------------------- */
1645 edit_goto_matching_bracket (WEdit
* edit
)
1649 q
= edit_get_bracket (edit
, 0, 0);
1652 edit
->bracket
= edit
->curs1
;
1653 edit
->force
|= REDRAW_PAGE
;
1654 edit_cursor_move (edit
, q
- edit
->curs1
);
1658 /* --------------------------------------------------------------------------------------------- */
1661 edit_move_block_to_right (WEdit
* edit
)
1663 off_t start_mark
, end_mark
;
1664 long cur_bol
, start_bol
;
1666 if (eval_marks (edit
, &start_mark
, &end_mark
))
1669 start_bol
= edit_bol (edit
, start_mark
);
1670 cur_bol
= edit_bol (edit
, end_mark
- 1);
1674 edit_cursor_move (edit
, cur_bol
- edit
->curs1
);
1675 if (!edit_line_is_blank (edit
, edit
->curs_line
))
1677 if (option_fill_tabs_with_spaces
)
1678 insert_spaces_tab (edit
, option_fake_half_tabs
);
1680 edit_insert (edit
, '\t');
1681 edit_cursor_move (edit
, edit_bol (edit
, cur_bol
) - edit
->curs1
);
1687 cur_bol
= edit_bol (edit
, cur_bol
- 1);
1689 while (cur_bol
>= start_bol
);
1691 edit
->force
|= REDRAW_PAGE
;
1694 /* --------------------------------------------------------------------------------------------- */
1697 edit_move_block_to_left (WEdit
* edit
)
1699 off_t start_mark
, end_mark
;
1700 off_t cur_bol
, start_bol
;
1703 if (eval_marks (edit
, &start_mark
, &end_mark
))
1706 start_bol
= edit_bol (edit
, start_mark
);
1707 cur_bol
= edit_bol (edit
, end_mark
- 1);
1714 edit_cursor_move (edit
, cur_bol
- edit
->curs1
);
1716 if (option_fake_half_tabs
)
1717 del_tab_width
= HALF_TAB_SIZE
;
1719 del_tab_width
= option_tab_spacing
;
1721 next_char
= edit_get_byte (edit
, edit
->curs1
);
1722 if (next_char
== '\t')
1723 edit_delete (edit
, TRUE
);
1724 else if (next_char
== ' ')
1725 for (i
= 1; i
<= del_tab_width
; i
++)
1727 if (next_char
== ' ')
1728 edit_delete (edit
, TRUE
);
1729 next_char
= edit_get_byte (edit
, edit
->curs1
);
1735 cur_bol
= edit_bol (edit
, cur_bol
- 1);
1737 while (cur_bol
>= start_bol
);
1739 edit
->force
|= REDRAW_PAGE
;
1742 /* --------------------------------------------------------------------------------------------- */
1744 * prints at the cursor
1745 * @return number of chars printed
1749 edit_print_string (WEdit
* e
, const char *s
)
1753 while (s
[i
] != '\0')
1754 edit_execute_cmd (e
, CK_InsertChar
, (unsigned char) s
[i
++]);
1755 e
->force
|= REDRAW_COMPLETELY
;
1756 edit_update_screen (e
);
1760 /* --------------------------------------------------------------------------------------------- */
1763 edit_insert_column_from_file (WEdit
* edit
, int file
, off_t
* start_pos
, off_t
* end_pos
,
1764 long *col1
, long *col2
)
1768 off_t blocklen
= -1, width
= 0;
1769 unsigned char *data
;
1771 cursor
= edit
->curs1
;
1772 col
= edit_get_col (edit
);
1773 data
= g_malloc0 (TEMP_BUF_LEN
);
1775 while ((blocklen
= mc_read (file
, (char *) data
, TEMP_BUF_LEN
)) > 0)
1780 pn
= strchr ((char *) data
, '\n');
1781 width
= pn
== NULL
? blocklen
: pn
- (char *) data
;
1783 for (i
= 0; i
< blocklen
; i
++)
1785 if (data
[i
] != '\n')
1786 edit_insert (edit
, data
[i
]);
1788 { /* fill in and move to next line */
1792 if (edit_get_byte (edit
, edit
->curs1
) != '\n')
1793 for (l
= width
- (edit_get_col (edit
) - col
); l
> 0; l
-= space_width
)
1794 edit_insert (edit
, ' ');
1796 for (p
= edit
->curs1
;; p
++)
1798 if (p
== edit
->last_byte
)
1800 edit_cursor_move (edit
, edit
->last_byte
- edit
->curs1
);
1801 edit_insert_ahead (edit
, '\n');
1805 if (edit_get_byte (edit
, p
) == '\n')
1812 edit_cursor_move (edit
, edit_move_forward3 (edit
, p
, col
, 0) - edit
->curs1
);
1814 for (l
= col
- edit_get_col (edit
); l
>= space_width
; l
-= space_width
)
1815 edit_insert (edit
, ' ');
1820 *col2
= col
+ width
;
1821 *start_pos
= cursor
;
1822 *end_pos
= edit
->curs1
;
1823 edit_cursor_move (edit
, cursor
- edit
->curs1
);
1829 /* --------------------------------------------------------------------------------------------- */
1830 /*** public functions ****************************************************************************/
1831 /* --------------------------------------------------------------------------------------------- */
1833 /** User edit menu, like user menu (F2) but only in editor. */
1836 user_menu (WEdit
* edit
, const char *menu_file
, int selected_entry
)
1841 off_t start_mark
, end_mark
;
1843 vfs_path_t
*block_file_vpath
;
1845 block_file
= mc_config_get_full_path (EDIT_BLOCK_FILE
);
1846 block_file_vpath
= vfs_path_from_str (block_file
);
1848 nomark
= eval_marks (edit
, &start_mark
, &end_mark
);
1850 edit_save_block (edit
, block_file
, start_mark
, end_mark
);
1852 /* run shell scripts from menu */
1853 if (user_menu_cmd (edit
, menu_file
, selected_entry
)
1854 && (mc_stat (block_file_vpath
, &status
) == 0) && (status
.st_size
!= 0))
1859 /* i.e. we have marked block */
1861 rc
= edit_block_delete_cmd (edit
);
1867 ins_len
= edit_insert_file (edit
, block_file_vpath
);
1868 if (nomark
== 0 && ins_len
> 0)
1869 edit_set_markers (edit
, start_mark
, start_mark
+ ins_len
, 0, 0);
1871 /* truncate block file */
1872 fd
= fopen (block_file
, "w");
1876 g_free (block_file
);
1877 vfs_path_free (block_file_vpath
);
1879 edit_cursor_move (edit
, curs
- edit
->curs1
);
1880 edit
->force
|= REDRAW_PAGE
;
1881 widget_redraw (WIDGET (edit
));
1884 /* --------------------------------------------------------------------------------------------- */
1887 edit_get_byte (const WEdit
* edit
, off_t byte_index
)
1891 p
= edit_get_byte_ptr (edit
, byte_index
);
1893 return (p
!= NULL
) ? *(unsigned char *) p
: '\n';
1896 /* --------------------------------------------------------------------------------------------- */
1900 edit_get_utf (const WEdit
* edit
, off_t byte_index
, int *char_width
)
1905 gchar
*next_ch
= NULL
;
1907 gchar utf8_buf
[UTF8_CHAR_LEN
+ 1];
1909 if (byte_index
>= (edit
->curs1
+ edit
->curs2
) || byte_index
< 0)
1915 str
= edit_get_byte_ptr (edit
, byte_index
);
1923 res
= g_utf8_get_char_validated (str
, -1);
1927 /* Retry with explicit bytes to make sure it's not a buffer boundary */
1929 for (i
= 0; i
< UTF8_CHAR_LEN
; i
++)
1930 utf8_buf
[i
] = edit_get_byte (edit
, byte_index
+ i
);
1931 utf8_buf
[UTF8_CHAR_LEN
] = '\0';
1933 res
= g_utf8_get_char_validated (str
, -1);
1944 /* Calculate UTF-8 char width */
1945 next_ch
= g_utf8_next_char (str
);
1948 width
= next_ch
- str
;
1956 *char_width
= width
;
1961 /* --------------------------------------------------------------------------------------------- */
1964 edit_get_write_filter (const vfs_path_t
* write_name_vpath
, const vfs_path_t
* filename_vpath
)
1967 char *p
, *writename
;
1968 const vfs_path_element_t
*path_element
;
1970 i
= edit_find_filter (filename_vpath
);
1974 path_element
= vfs_path_get_by_index (write_name_vpath
, -1);
1975 writename
= name_quote (path_element
->path
, 0);
1976 p
= g_strdup_printf (all_filters
[i
].write
, writename
);
1981 /* --------------------------------------------------------------------------------------------- */
1983 * @param edit editor object
1984 * @param f value of stream file
1985 * @return the length of the file
1989 edit_write_stream (WEdit
* edit
, FILE * f
)
1993 if (edit
->lb
== LB_ASIS
)
1995 for (i
= 0; i
< edit
->last_byte
; i
++)
1996 if (fputc (edit_get_byte (edit
, i
), f
) < 0)
2001 /* change line breaks */
2002 for (i
= 0; i
< edit
->last_byte
; i
++)
2004 unsigned char c
= edit_get_byte (edit
, i
);
2006 if (!(c
== '\n' || c
== '\r'))
2008 /* not line break */
2009 if (fputc (c
, f
) < 0)
2013 { /* (c == '\n' || c == '\r') */
2014 unsigned char c1
= edit_get_byte (edit
, i
+ 1); /* next char */
2018 case LB_UNIX
: /* replace "\r\n" or '\r' to '\n' */
2019 /* put one line break unconditionally */
2020 if (fputc ('\n', f
) < 0)
2023 i
++; /* 2 chars are processed */
2025 if (c
== '\r' && c1
== '\n')
2026 /* Windows line break; go to the next char */
2029 if (c
== '\r' && c1
== '\r')
2031 /* two Macintosh line breaks; put second line break */
2032 if (fputc ('\n', f
) < 0)
2037 if (fputc (c1
, f
) < 0)
2041 case LB_WIN
: /* replace '\n' or '\r' to "\r\n" */
2042 /* put one line break unconditionally */
2043 if (fputc ('\r', f
) < 0 || fputc ('\n', f
) < 0)
2046 if (c
== '\r' && c1
== '\n')
2047 /* Windows line break; go to the next char */
2051 case LB_MAC
: /* replace "\r\n" or '\n' to '\r' */
2052 /* put one line break unconditionally */
2053 if (fputc ('\r', f
) < 0)
2056 i
++; /* 2 chars are processed */
2058 if (c
== '\r' && c1
== '\n')
2059 /* Windows line break; go to the next char */
2062 if (c
== '\n' && c1
== '\n')
2064 /* two Windows line breaks; put second line break */
2065 if (fputc ('\r', f
) < 0)
2070 if (fputc (c1
, f
) < 0)
2073 case LB_ASIS
: /* default without changes */
2079 return edit
->last_byte
;
2082 /* --------------------------------------------------------------------------------------------- */
2085 is_break_char (char c
)
2087 return (isspace (c
) || strchr ("{}[]()<>=|/\\!?~-+`'\",.;:#$%^&*", c
));
2090 /* --------------------------------------------------------------------------------------------- */
2093 edit_get_word_from_pos (const WEdit
* edit
, off_t start_pos
, off_t
* start
, gsize
* len
,
2098 GString
*match_expr
;
2101 for (word_start
= start_pos
; word_start
!= 0; word_start
--, cut_len
++)
2103 c1
= edit_get_byte (edit
, word_start
);
2104 c2
= edit_get_byte (edit
, word_start
- 1);
2106 if (is_break_char (c1
) != is_break_char (c2
) || c1
== '\n' || c2
== '\n')
2110 match_expr
= g_string_sized_new (16);
2114 c1
= edit_get_byte (edit
, word_start
+ match_expr
->len
);
2115 c2
= edit_get_byte (edit
, word_start
+ match_expr
->len
+ 1);
2116 g_string_append_c (match_expr
, c1
);
2118 while (!(is_break_char (c1
) != is_break_char (c2
) || c1
== '\n' || c2
== '\n'));
2120 *len
= match_expr
->len
;
2121 *start
= word_start
;
2124 return g_string_free (match_expr
, FALSE
);
2127 /* --------------------------------------------------------------------------------------------- */
2128 /** inserts a file at the cursor, returns count of inserted bytes on success */
2131 edit_insert_file (WEdit
* edit
, const vfs_path_t
* filename_vpath
)
2137 p
= edit_get_filter (filename_vpath
);
2138 current
= edit
->curs1
;
2144 f
= (FILE *) popen (p
, "r");
2147 edit_insert_stream (edit
, f
);
2149 /* Place cursor at the end of text selection */
2150 if (!option_cursor_after_inserted_block
)
2152 ins_len
= edit
->curs1
- current
;
2153 edit_cursor_move (edit
, -ins_len
);
2159 errmsg
= g_strdup_printf (_("Error reading from pipe: %s"), p
);
2160 edit_error_dialog (_("Error"), errmsg
);
2169 errmsg
= g_strdup_printf (_("Cannot open pipe for reading: %s"), p
);
2170 edit_error_dialog (_("Error"), errmsg
);
2180 int vertical_insertion
= 0;
2183 file
= mc_open (filename_vpath
, O_RDONLY
| O_BINARY
);
2187 buf
= g_malloc0 (TEMP_BUF_LEN
);
2188 blocklen
= mc_read (file
, buf
, sizeof (VERTICAL_MAGIC
));
2191 /* if contain signature VERTICAL_MAGIC then it vertical block */
2192 if (memcmp (buf
, VERTICAL_MAGIC
, sizeof (VERTICAL_MAGIC
)) == 0)
2193 vertical_insertion
= 1;
2195 mc_lseek (file
, 0, SEEK_SET
);
2198 if (vertical_insertion
)
2203 blocklen
= edit_insert_column_from_file (edit
, file
, &mark1
, &mark2
, &c1
, &c2
);
2204 edit_set_markers (edit
, edit
->curs1
, mark2
, c1
, c2
);
2206 /* highlight inserted text then not persistent blocks */
2207 if (!option_persistent_selections
&& edit
->modified
)
2209 if (!edit
->column_highlight
)
2210 edit_push_undo_action (edit
, COLUMN_OFF
);
2211 edit
->column_highlight
= 1;
2218 while ((blocklen
= mc_read (file
, (char *) buf
, TEMP_BUF_LEN
)) > 0)
2220 for (i
= 0; i
< blocklen
; i
++)
2221 edit_insert (edit
, buf
[i
]);
2223 /* highlight inserted text then not persistent blocks */
2224 if (!option_persistent_selections
&& edit
->modified
)
2226 edit_set_markers (edit
, edit
->curs1
, current
, 0, 0);
2227 if (edit
->column_highlight
)
2228 edit_push_undo_action (edit
, COLUMN_ON
);
2229 edit
->column_highlight
= 0;
2232 /* Place cursor at the end of text selection */
2233 if (!option_cursor_after_inserted_block
)
2235 ins_len
= edit
->curs1
- current
;
2236 edit_cursor_move (edit
, -ins_len
);
2240 edit
->force
|= REDRAW_PAGE
;
2250 /* --------------------------------------------------------------------------------------------- */
2252 * Fill in the edit structure. Return NULL on failure. Pass edit as
2253 * NULL to allocate a new structure.
2255 * If line is 0, try to restore saved position. Otherwise put the
2256 * cursor on that line and show it in the middle of the screen.
2260 edit_init (WEdit
* edit
, int y
, int x
, int lines
, int cols
, const vfs_path_t
* filename_vpath
,
2263 gboolean to_free
= FALSE
;
2265 option_auto_syntax
= 1; /* Resetting to auto on every invokation */
2266 option_line_state_width
= option_line_state
? LINE_STATE_WIDTH
: 0;
2270 /* save some widget parameters */
2271 gboolean fullscreen
= edit
->fullscreen
;
2272 int y_prev
= edit
->y_prev
;
2273 int x_prev
= edit
->x_prev
;
2274 int lines_prev
= edit
->lines_prev
;
2275 int cols_prev
= edit
->cols_prev
;
2277 edit_purge_widget (edit
);
2279 /* restore saved parameters */
2280 edit
->fullscreen
= fullscreen
;
2281 edit
->y_prev
= y_prev
;
2282 edit
->x_prev
= x_prev
;
2283 edit
->lines_prev
= lines_prev
;
2284 edit
->cols_prev
= cols_prev
;
2290 * Expand option_whole_chars_search by national letters using
2294 static char option_whole_chars_search_buf
[256];
2296 if (option_whole_chars_search_buf
!= option_whole_chars_search
)
2299 size_t len
= str_term_width1 (option_whole_chars_search
);
2301 strcpy (option_whole_chars_search_buf
, option_whole_chars_search
);
2303 for (i
= 1; i
<= sizeof (option_whole_chars_search_buf
); i
++)
2305 if (g_ascii_islower ((gchar
) i
) && !strchr (option_whole_chars_search
, i
))
2307 option_whole_chars_search_buf
[len
++] = i
;
2311 option_whole_chars_search_buf
[len
] = 0;
2312 option_whole_chars_search
= option_whole_chars_search_buf
;
2314 #endif /* ENABLE_NLS */
2315 edit
= g_malloc0 (sizeof (WEdit
));
2318 init_widget (WIDGET (edit
), y
, x
, lines
, cols
, NULL
, NULL
);
2319 edit
->fullscreen
= TRUE
;
2320 edit_save_size (edit
);
2323 edit
->drag_state
= MCEDIT_DRAG_NORMAL
;
2325 edit
->stat1
.st_mode
= S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IROTH
;
2326 edit
->stat1
.st_uid
= getuid ();
2327 edit
->stat1
.st_gid
= getgid ();
2328 edit
->stat1
.st_mtime
= 0;
2332 edit
->force
|= REDRAW_PAGE
;
2334 /* set file name before load file */
2335 edit_set_filename (edit
, filename_vpath
);
2337 edit
->undo_stack_size
= START_STACK_SIZE
;
2338 edit
->undo_stack_size_mask
= START_STACK_SIZE
- 1;
2339 edit
->undo_stack
= g_malloc0 ((edit
->undo_stack_size
+ 10) * sizeof (long));
2341 edit
->redo_stack_size
= START_STACK_SIZE
;
2342 edit
->redo_stack_size_mask
= START_STACK_SIZE
- 1;
2343 edit
->redo_stack
= g_malloc0 ((edit
->redo_stack_size
+ 10) * sizeof (long));
2347 edit
->converter
= str_cnv_from_term
;
2348 edit_set_codeset (edit
);
2351 if (!edit_load_file (edit
))
2353 /* edit_load_file already gives an error message */
2359 edit
->loading_done
= 1;
2362 edit_load_syntax (edit
, NULL
, NULL
);
2363 edit_get_syntax_color (edit
, -1);
2365 /* load saved cursor position */
2366 if ((line
== 0) && option_save_position
)
2367 edit_load_position (edit
);
2372 edit_move_display (edit
, line
- 1);
2373 edit_move_to_line (edit
, line
- 1);
2376 edit_load_macro_cmd (edit
);
2381 /* --------------------------------------------------------------------------------------------- */
2383 /** Clear the edit struct, freeing everything in it. Return TRUE on success */
2385 edit_clean (WEdit
* edit
)
2392 /* a stale lock, remove it */
2394 edit
->locked
= unlock_file (edit
->filename_vpath
);
2396 /* save cursor position */
2397 if (option_save_position
)
2398 edit_save_position (edit
);
2399 else if (edit
->serialized_bookmarks
!= NULL
)
2400 edit
->serialized_bookmarks
= (GArray
*) g_array_free (edit
->serialized_bookmarks
, TRUE
);
2402 /* File specified on the mcedit command line and never saved */
2403 if (edit
->delete_file
)
2404 unlink (vfs_path_get_last_path_str (edit
->filename_vpath
));
2406 edit_free_syntax_rules (edit
);
2407 book_mark_flush (edit
, -1);
2408 for (; j
<= MAXBUFF
; j
++)
2410 g_free (edit
->buffers1
[j
]);
2411 g_free (edit
->buffers2
[j
]);
2414 g_free (edit
->undo_stack
);
2415 g_free (edit
->redo_stack
);
2416 vfs_path_free (edit
->filename_vpath
);
2417 vfs_path_free (edit
->dir_vpath
);
2418 mc_search_free (edit
->search
);
2419 edit
->search
= NULL
;
2422 if (edit
->converter
!= str_cnv_from_term
)
2423 str_close_conv (edit
->converter
);
2426 edit_purge_widget (edit
);
2431 /* --------------------------------------------------------------------------------------------- */
2434 * Load a new file into the editor and set line. If it fails, preserve the old file.
2435 * To do it, allocate a new widget, initialize it and, if the new file
2436 * was loaded, copy the data to the old widget.
2438 * @return TRUE on success, FALSE on failure.
2441 edit_reload_line (WEdit
* edit
, const vfs_path_t
* filename_vpath
, long line
)
2443 Widget
*w
= WIDGET (edit
);
2446 e
= g_malloc0 (sizeof (WEdit
));
2448 /* save some widget parameters */
2449 e
->fullscreen
= edit
->fullscreen
;
2450 e
->y_prev
= edit
->y_prev
;
2451 e
->x_prev
= edit
->x_prev
;
2452 e
->lines_prev
= edit
->lines_prev
;
2453 e
->cols_prev
= edit
->cols_prev
;
2455 if (edit_init (e
, w
->y
, w
->x
, w
->lines
, w
->cols
, filename_vpath
, line
) == NULL
)
2462 memcpy (edit
, e
, sizeof (WEdit
));
2468 /* --------------------------------------------------------------------------------------------- */
2472 edit_set_codeset (WEdit
* edit
)
2477 get_codepage_id (mc_global
.source_codepage
>=
2478 0 ? mc_global
.source_codepage
: mc_global
.display_codepage
);
2483 conv
= str_crt_conv_from (cp_id
);
2484 if (conv
!= INVALID_CONV
)
2486 if (edit
->converter
!= str_cnv_from_term
)
2487 str_close_conv (edit
->converter
);
2488 edit
->converter
= conv
;
2493 edit
->utf8
= str_isutf8 (cp_id
);
2498 /* --------------------------------------------------------------------------------------------- */
2501 * Recording stack for undo:
2502 * The following is an implementation of a compressed stack. Identical
2503 * pushes are recorded by a negative prefix indicating the number of times the
2504 * same char was pushed. This saves space for repeated curs-left or curs-right
2521 * If the stack long int is 0-255 it represents a normal insert (from a backspace),
2522 * 256-512 is an insert ahead (from a delete), If it is betwen 600 and 700 it is one
2523 * of the cursor functions define'd in edit-impl.h. 1000 through 700'000'000 is to
2524 * set edit->mark1 position. 700'000'000 through 1400'000'000 is to set edit->mark2
2527 * The only way the cursor moves or the buffer is changed is through the routines:
2528 * insert, backspace, insert_ahead, delete, and cursor_move.
2529 * These record the reverse undo movements onto the stack each time they are
2532 * Each key press results in a set of actions (insert; delete ...). So each time
2533 * a key is pressed the current position of start_display is pushed as
2534 * KEY_PRESS + start_display. Then for undoing, we pop until we get to a number
2535 * over KEY_PRESS. We then assign this number less KEY_PRESS to start_display. So undo
2536 * tracks scrolling and key actions exactly. (KEY_PRESS is about (2^31) * (2/3) = 1400'000'000)
2540 * @param edit editor object
2541 * @param c code of the action
2545 edit_push_undo_action (WEdit
* edit
, long c
)
2547 unsigned long sp
= edit
->undo_stack_pointer
;
2551 /* first enlarge the stack if necessary */
2552 if (sp
> edit
->undo_stack_size
- 10)
2554 if (option_max_undo
< 256)
2555 option_max_undo
= 256;
2556 if (edit
->undo_stack_size
< (unsigned long) option_max_undo
)
2558 t
= g_realloc (edit
->undo_stack
, (edit
->undo_stack_size
* 2 + 10) * sizeof (long));
2561 edit
->undo_stack
= t
;
2562 edit
->undo_stack_size
<<= 1;
2563 edit
->undo_stack_size_mask
= edit
->undo_stack_size
- 1;
2567 spm1
= (edit
->undo_stack_pointer
- 1) & edit
->undo_stack_size_mask
;
2568 if (edit
->undo_stack_disable
)
2570 edit_push_redo_action (edit
, KEY_PRESS
);
2571 edit_push_redo_action (edit
, c
);
2575 if (edit
->redo_stack_reset
)
2576 edit
->redo_stack_bottom
= edit
->redo_stack_pointer
= 0;
2578 if (edit
->undo_stack_bottom
!= sp
2579 && spm1
!= edit
->undo_stack_bottom
2580 && ((sp
- 2) & edit
->undo_stack_size_mask
) != edit
->undo_stack_bottom
)
2583 if (edit
->undo_stack
[spm1
] < 0)
2585 d
= edit
->undo_stack
[(sp
- 2) & edit
->undo_stack_size_mask
];
2586 if (d
== c
&& edit
->undo_stack
[spm1
] > -1000000000)
2588 if (c
< KEY_PRESS
) /* --> no need to push multiple do-nothings */
2589 edit
->undo_stack
[spm1
]--;
2595 d
= edit
->undo_stack
[spm1
];
2599 return; /* --> no need to push multiple do-nothings */
2600 edit
->undo_stack
[sp
] = -2;
2605 edit
->undo_stack
[sp
] = c
;
2608 edit
->undo_stack_pointer
= (edit
->undo_stack_pointer
+ 1) & edit
->undo_stack_size_mask
;
2610 /* if the sp wraps round and catches the undo_stack_bottom then erase
2611 * the first set of actions on the stack to make space - by moving
2612 * undo_stack_bottom forward one "key press" */
2613 c
= (edit
->undo_stack_pointer
+ 2) & edit
->undo_stack_size_mask
;
2614 if ((unsigned long) c
== edit
->undo_stack_bottom
||
2615 (((unsigned long) c
+ 1) & edit
->undo_stack_size_mask
) == edit
->undo_stack_bottom
)
2618 edit
->undo_stack_bottom
= (edit
->undo_stack_bottom
+ 1) & edit
->undo_stack_size_mask
;
2620 while (edit
->undo_stack
[edit
->undo_stack_bottom
] < KEY_PRESS
2621 && edit
->undo_stack_bottom
!= edit
->undo_stack_pointer
);
2623 /*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: */
2624 if (edit
->undo_stack_pointer
!= edit
->undo_stack_bottom
2625 && edit
->undo_stack
[edit
->undo_stack_bottom
] < KEY_PRESS
)
2627 edit
->undo_stack_bottom
= edit
->undo_stack_pointer
= 0;
2632 edit_push_redo_action (WEdit
* edit
, long c
)
2634 unsigned long sp
= edit
->redo_stack_pointer
;
2637 /* first enlarge the stack if necessary */
2638 if (sp
> edit
->redo_stack_size
- 10)
2640 if (option_max_undo
< 256)
2641 option_max_undo
= 256;
2642 if (edit
->redo_stack_size
< (unsigned long) option_max_undo
)
2644 t
= g_realloc (edit
->redo_stack
, (edit
->redo_stack_size
* 2 + 10) * sizeof (long));
2647 edit
->redo_stack
= t
;
2648 edit
->redo_stack_size
<<= 1;
2649 edit
->redo_stack_size_mask
= edit
->redo_stack_size
- 1;
2653 spm1
= (edit
->redo_stack_pointer
- 1) & edit
->redo_stack_size_mask
;
2655 if (edit
->redo_stack_bottom
!= sp
2656 && spm1
!= edit
->redo_stack_bottom
2657 && ((sp
- 2) & edit
->redo_stack_size_mask
) != edit
->redo_stack_bottom
)
2660 if (edit
->redo_stack
[spm1
] < 0)
2662 d
= edit
->redo_stack
[(sp
- 2) & edit
->redo_stack_size_mask
];
2663 if (d
== c
&& edit
->redo_stack
[spm1
] > -1000000000)
2665 if (c
< KEY_PRESS
) /* --> no need to push multiple do-nothings */
2666 edit
->redo_stack
[spm1
]--;
2672 d
= edit
->redo_stack
[spm1
];
2676 return; /* --> no need to push multiple do-nothings */
2677 edit
->redo_stack
[sp
] = -2;
2678 goto redo_check_bottom
;
2682 edit
->redo_stack
[sp
] = c
;
2685 edit
->redo_stack_pointer
= (edit
->redo_stack_pointer
+ 1) & edit
->redo_stack_size_mask
;
2687 /* if the sp wraps round and catches the redo_stack_bottom then erase
2688 * the first set of actions on the stack to make space - by moving
2689 * redo_stack_bottom forward one "key press" */
2690 c
= (edit
->redo_stack_pointer
+ 2) & edit
->redo_stack_size_mask
;
2691 if ((unsigned long) c
== edit
->redo_stack_bottom
||
2692 (((unsigned long) c
+ 1) & edit
->redo_stack_size_mask
) == edit
->redo_stack_bottom
)
2695 edit
->redo_stack_bottom
= (edit
->redo_stack_bottom
+ 1) & edit
->redo_stack_size_mask
;
2697 while (edit
->redo_stack
[edit
->redo_stack_bottom
] < KEY_PRESS
2698 && edit
->redo_stack_bottom
!= edit
->redo_stack_pointer
);
2701 * If a single key produced enough pushes to wrap all the way round then
2702 * we would notice that the [redo_stack_bottom] does not contain KEY_PRESS.
2703 * The stack is then initialised:
2706 if (edit
->redo_stack_pointer
!= edit
->redo_stack_bottom
2707 && edit
->redo_stack
[edit
->redo_stack_bottom
] < KEY_PRESS
)
2708 edit
->redo_stack_bottom
= edit
->redo_stack_pointer
= 0;
2711 /* --------------------------------------------------------------------------------------------- */
2713 Basic low level single character buffer alterations and movements at the cursor.
2714 Returns char passed over, inserted or removed.
2718 edit_insert (WEdit
* edit
, int c
)
2720 /* check if file has grown to large */
2721 if (edit
->last_byte
>= SIZE_LIMIT
)
2724 /* first we must update the position of the display window */
2725 if (edit
->curs1
< edit
->start_display
)
2727 edit
->start_display
++;
2732 /* Mark file as modified, unless the file hasn't been fully loaded */
2733 if (edit
->loading_done
)
2734 edit_modification (edit
);
2736 /* now we must update some info on the file and check if a redraw is required */
2739 book_mark_inc (edit
, edit
->curs_line
);
2741 edit
->total_lines
++;
2742 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
2745 /* save the reverse command onto the undo stack */
2746 /* ordinary char and not space */
2748 edit_push_undo_action (edit
, BACKSPACE
);
2750 edit_push_undo_action (edit
, BACKSPACE_BR
);
2751 /* update markers */
2752 edit
->mark1
+= (edit
->mark1
> edit
->curs1
);
2753 edit
->mark2
+= (edit
->mark2
> edit
->curs1
);
2754 edit
->last_get_rule
+= (edit
->last_get_rule
> edit
->curs1
);
2756 /* add a new buffer if we've reached the end of the last one */
2757 if (!(edit
->curs1
& M_EDIT_BUF_SIZE
))
2758 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2760 /* perform the insertion */
2761 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
][edit
->curs1
& M_EDIT_BUF_SIZE
]
2762 = (unsigned char) c
;
2764 /* update file length */
2767 /* update cursor position */
2771 /* --------------------------------------------------------------------------------------------- */
2772 /** same as edit_insert and move left */
2775 edit_insert_ahead (WEdit
* edit
, int c
)
2777 if (edit
->last_byte
>= SIZE_LIMIT
)
2780 if (edit
->curs1
< edit
->start_display
)
2782 edit
->start_display
++;
2786 edit_modification (edit
);
2789 book_mark_inc (edit
, edit
->curs_line
);
2790 edit
->total_lines
++;
2791 edit
->force
|= REDRAW_AFTER_CURSOR
;
2793 /* ordinary char and not space */
2795 edit_push_undo_action (edit
, DELCHAR
);
2797 edit_push_undo_action (edit
, DELCHAR_BR
);
2799 edit
->mark1
+= (edit
->mark1
>= edit
->curs1
);
2800 edit
->mark2
+= (edit
->mark2
>= edit
->curs1
);
2801 edit
->last_get_rule
+= (edit
->last_get_rule
>= edit
->curs1
);
2803 if (!((edit
->curs2
+ 1) & M_EDIT_BUF_SIZE
))
2804 edit
->buffers2
[(edit
->curs2
+ 1) >> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2805 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]
2806 [EDIT_BUF_SIZE
- (edit
->curs2
& M_EDIT_BUF_SIZE
) - 1] = c
;
2812 /* --------------------------------------------------------------------------------------------- */
2815 edit_insert_over (WEdit
* edit
)
2819 for (i
= 0; i
< edit
->over_col
; i
++)
2820 edit_insert (edit
, ' ');
2825 /* --------------------------------------------------------------------------------------------- */
2828 edit_delete (WEdit
* edit
, gboolean byte_delete
)
2834 if (edit
->curs2
== 0)
2838 /* if byte_delete == TRUE then delete only one byte not multibyte char */
2839 if (edit
->utf8
&& !byte_delete
)
2841 edit_get_utf (edit
, edit
->curs1
, &cw
);
2849 if (edit
->mark2
!= edit
->mark1
)
2850 edit_push_markers (edit
);
2852 for (i
= 1; i
<= cw
; i
++)
2854 if (edit
->mark1
> edit
->curs1
)
2857 edit
->end_mark_curs
--;
2859 if (edit
->mark2
> edit
->curs1
)
2861 if (edit
->last_get_rule
> edit
->curs1
)
2862 edit
->last_get_rule
--;
2864 p
= edit
->buffers2
[(edit
->curs2
- 1) >> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
2866 1) & M_EDIT_BUF_SIZE
) - 1];
2868 if (!(edit
->curs2
& M_EDIT_BUF_SIZE
))
2870 g_free (edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]);
2871 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
] = NULL
;
2875 edit_push_undo_action (edit
, p
+ 256);
2878 edit_modification (edit
);
2881 book_mark_dec (edit
, edit
->curs_line
);
2882 edit
->total_lines
--;
2883 edit
->force
|= REDRAW_AFTER_CURSOR
;
2885 if (edit
->curs1
< edit
->start_display
)
2887 edit
->start_display
--;
2895 /* --------------------------------------------------------------------------------------------- */
2898 edit_backspace (WEdit
* edit
, gboolean byte_delete
)
2904 if (edit
->curs1
== 0)
2907 if (edit
->mark2
!= edit
->mark1
)
2908 edit_push_markers (edit
);
2911 if (edit
->utf8
&& !byte_delete
)
2913 edit_get_prev_utf (edit
, edit
->curs1
, &cw
);
2921 for (i
= 1; i
<= cw
; i
++)
2923 if (edit
->mark1
>= edit
->curs1
)
2926 edit
->end_mark_curs
--;
2928 if (edit
->mark2
>= edit
->curs1
)
2930 if (edit
->last_get_rule
>= edit
->curs1
)
2931 edit
->last_get_rule
--;
2933 p
= *(edit
->buffers1
[(edit
->curs1
- 1) >> S_EDIT_BUF_SIZE
] +
2934 ((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
));
2935 if (((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
) == 0)
2937 g_free (edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
]);
2938 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = NULL
;
2942 edit_push_undo_action (edit
, p
);
2944 edit_modification (edit
);
2947 book_mark_dec (edit
, edit
->curs_line
);
2949 edit
->total_lines
--;
2950 edit
->force
|= REDRAW_AFTER_CURSOR
;
2953 if (edit
->curs1
< edit
->start_display
)
2955 edit
->start_display
--;
2963 /* --------------------------------------------------------------------------------------------- */
2964 /** moves the cursor right or left: increment positive or negative respectively */
2967 edit_cursor_move (WEdit
* edit
, off_t increment
)
2969 /* this is the same as a combination of two of the above routines, with only one push onto the undo stack */
2974 for (; increment
< 0; increment
++)
2976 if (edit
->curs1
== 0)
2979 edit_push_undo_action (edit
, CURS_RIGHT
);
2981 c
= edit_get_byte (edit
, edit
->curs1
- 1);
2982 if (!((edit
->curs2
+ 1) & M_EDIT_BUF_SIZE
))
2983 edit
->buffers2
[(edit
->curs2
+ 1) >> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
2984 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
2985 (edit
->curs2
& M_EDIT_BUF_SIZE
) - 1] = c
;
2987 c
= edit
->buffers1
[(edit
->curs1
- 1) >> S_EDIT_BUF_SIZE
][(edit
->curs1
-
2988 1) & M_EDIT_BUF_SIZE
];
2989 if (!((edit
->curs1
- 1) & M_EDIT_BUF_SIZE
))
2991 g_free (edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
]);
2992 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = NULL
;
2998 edit
->force
|= REDRAW_LINE_BELOW
;
3005 for (; increment
> 0; increment
--)
3007 if (edit
->curs2
== 0)
3010 edit_push_undo_action (edit
, CURS_LEFT
);
3012 c
= edit_get_byte (edit
, edit
->curs1
);
3013 if (!(edit
->curs1
& M_EDIT_BUF_SIZE
))
3014 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
] = g_malloc0 (EDIT_BUF_SIZE
);
3015 edit
->buffers1
[edit
->curs1
>> S_EDIT_BUF_SIZE
][edit
->curs1
& M_EDIT_BUF_SIZE
] = c
;
3017 c
= edit
->buffers2
[(edit
->curs2
- 1) >> S_EDIT_BUF_SIZE
][EDIT_BUF_SIZE
-
3019 1) & M_EDIT_BUF_SIZE
) - 1];
3020 if (!(edit
->curs2
& M_EDIT_BUF_SIZE
))
3022 g_free (edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
]);
3023 edit
->buffers2
[edit
->curs2
>> S_EDIT_BUF_SIZE
] = 0;
3029 edit
->force
|= REDRAW_LINE_ABOVE
;
3035 /* These functions return positions relative to lines */
3037 /* --------------------------------------------------------------------------------------------- */
3038 /** returns index of last char on line + 1 */
3041 edit_eol (const WEdit
* edit
, off_t current
)
3043 if (current
>= edit
->last_byte
)
3044 return edit
->last_byte
;
3046 for (; edit_get_byte (edit
, current
) != '\n'; current
++)
3052 /* --------------------------------------------------------------------------------------------- */
3053 /** returns index of first char on line */
3056 edit_bol (const WEdit
* edit
, off_t current
)
3061 for (; edit_get_byte (edit
, current
- 1) != '\n'; current
--)
3067 /* --------------------------------------------------------------------------------------------- */
3070 edit_count_lines (const WEdit
* edit
, off_t current
, off_t upto
)
3074 if (upto
> edit
->last_byte
)
3075 upto
= edit
->last_byte
;
3078 while (current
< upto
)
3079 if (edit_get_byte (edit
, current
++) == '\n')
3084 /* --------------------------------------------------------------------------------------------- */
3085 /* If lines is zero this returns the count of lines from current to upto. */
3086 /* If upto is zero returns index of lines forward current. */
3089 edit_move_forward (const WEdit
* edit
, off_t current
, long lines
, off_t upto
)
3093 return (off_t
) edit_count_lines (edit
, current
, upto
);
3100 while (lines
-- != 0)
3102 next
= edit_eol (edit
, current
) + 1;
3103 if (next
> edit
->last_byte
)
3112 /* --------------------------------------------------------------------------------------------- */
3113 /** Returns offset of 'lines' lines up from current */
3116 edit_move_backward (const WEdit
* edit
, off_t current
, long lines
)
3120 current
= edit_bol (edit
, current
);
3121 while (lines
-- != 0 && current
!= 0)
3122 current
= edit_bol (edit
, current
- 1);
3126 /* --------------------------------------------------------------------------------------------- */
3127 /* If cols is zero this returns the count of columns from current to upto. */
3128 /* If upto is zero returns index of cols across from current. */
3131 edit_move_forward3 (const WEdit
* edit
, off_t current
, long cols
, off_t upto
)
3142 q
= edit
->last_byte
+ 2;
3144 for (col
= 0, p
= current
; p
< q
; p
++)
3156 orig_c
= c
= edit_get_byte (edit
, p
);
3164 utf_ch
= edit_get_utf (edit
, p
, &cw
);
3165 if (mc_global
.utf8_display
)
3169 if (g_unichar_iswide (utf_ch
))
3172 else if (cw
> 1 && g_unichar_isprint (utf_ch
))
3176 c
= convert_to_display_c (c
);
3180 return (upto
!= 0 ? (off_t
) col
: p
);
3182 col
+= TAB_SIZE
- col
% TAB_SIZE
;
3183 else if ((c
< 32 || c
== 127) && (orig_c
== c
3185 || (!mc_global
.utf8_display
&& !edit
->utf8
)
3188 /* '\r' is shown as ^M, so we must advance 2 characters */
3189 /* Caret notation for control characters */
3197 /* --------------------------------------------------------------------------------------------- */
3198 /** returns the current column position of the cursor */
3201 edit_get_col (const WEdit
* edit
)
3203 return (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0, edit
->curs1
);
3206 /* --------------------------------------------------------------------------------------------- */
3207 /* Scrolling functions */
3208 /* --------------------------------------------------------------------------------------------- */
3211 edit_update_curs_row (WEdit
* edit
)
3213 edit
->curs_row
= edit
->curs_line
- edit
->start_line
;
3216 /* --------------------------------------------------------------------------------------------- */
3219 edit_update_curs_col (WEdit
* edit
)
3221 edit
->curs_col
= (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0, edit
->curs1
);
3224 /* --------------------------------------------------------------------------------------------- */
3227 edit_get_curs_col (const WEdit
* edit
)
3229 return edit
->curs_col
;
3232 /* --------------------------------------------------------------------------------------------- */
3233 /** moves the display start position up by i lines */
3236 edit_scroll_upward (WEdit
* edit
, long i
)
3238 long lines_above
= edit
->start_line
;
3240 if (i
> lines_above
)
3244 edit
->start_line
-= i
;
3245 edit
->start_display
= edit_move_backward (edit
, edit
->start_display
, i
);
3246 edit
->force
|= REDRAW_PAGE
;
3247 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3249 edit_update_curs_row (edit
);
3253 /* --------------------------------------------------------------------------------------------- */
3256 edit_scroll_downward (WEdit
* edit
, long i
)
3260 lines_below
= edit
->total_lines
- edit
->start_line
- (WIDGET (edit
)->lines
- 1);
3261 if (lines_below
> 0)
3263 if (i
> lines_below
)
3265 edit
->start_line
+= i
;
3266 edit
->start_display
= edit_move_forward (edit
, edit
->start_display
, i
, 0);
3267 edit
->force
|= REDRAW_PAGE
;
3268 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3270 edit_update_curs_row (edit
);
3273 /* --------------------------------------------------------------------------------------------- */
3276 edit_scroll_right (WEdit
* edit
, long i
)
3278 edit
->force
|= REDRAW_PAGE
;
3279 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3280 edit
->start_col
-= i
;
3283 /* --------------------------------------------------------------------------------------------- */
3286 edit_scroll_left (WEdit
* edit
, long i
)
3288 if (edit
->start_col
)
3290 edit
->start_col
+= i
;
3291 if (edit
->start_col
> 0)
3292 edit
->start_col
= 0;
3293 edit
->force
|= REDRAW_PAGE
;
3294 edit
->force
&= (0xfff - REDRAW_CHAR_ONLY
);
3298 /* --------------------------------------------------------------------------------------------- */
3299 /* high level cursor movement commands */
3300 /* --------------------------------------------------------------------------------------------- */
3303 edit_move_to_prev_col (WEdit
* edit
, off_t p
)
3305 long prev
= edit
->prev_col
;
3306 long over
= edit
->over_col
;
3308 edit_cursor_move (edit
, edit_move_forward3 (edit
, p
, prev
+ edit
->over_col
, 0) - edit
->curs1
);
3310 if (option_cursor_beyond_eol
)
3314 line_len
= (long) edit_move_forward3 (edit
, edit_bol (edit
, edit
->curs1
), 0,
3315 edit_eol (edit
, edit
->curs1
));
3316 if (line_len
< prev
+ edit
->over_col
)
3318 edit
->over_col
= prev
+ over
- line_len
;
3319 edit
->prev_col
= line_len
;
3320 edit
->curs_col
= line_len
;
3324 edit
->curs_col
= prev
+ over
;
3325 edit
->prev_col
= edit
->curs_col
;
3332 if (option_fake_half_tabs
&& is_in_indent (edit
))
3334 long fake_half_tabs
;
3336 edit_update_curs_col (edit
);
3338 fake_half_tabs
= HALF_TAB_SIZE
* space_width
;
3339 if (fake_half_tabs
!= 0 && edit
->curs_col
% fake_half_tabs
!= 0)
3344 edit
->curs_col
-= (edit
->curs_col
% fake_half_tabs
);
3345 p
= edit_bol (edit
, edit
->curs1
);
3346 edit_cursor_move (edit
,
3347 edit_move_forward3 (edit
, p
, edit
->curs_col
, 0) - edit
->curs1
);
3348 if (!left_of_four_spaces (edit
))
3349 edit_cursor_move (edit
, edit_move_forward3 (edit
, p
, q
, 0) - edit
->curs1
);
3355 /* --------------------------------------------------------------------------------------------- */
3356 /** check whether line in editor is blank or not
3358 * @param edit editor object
3359 * @param line number of line
3361 * @return TRUE if line in blank, FALSE otherwise
3365 edit_line_is_blank (WEdit
* edit
, long line
)
3367 return is_blank (edit
, edit_find_line (edit
, line
));
3370 /* --------------------------------------------------------------------------------------------- */
3371 /** move cursor to line 'line' */
3374 edit_move_to_line (WEdit
* e
, long line
)
3376 if (line
< e
->curs_line
)
3377 edit_move_up (e
, e
->curs_line
- line
, 0);
3379 edit_move_down (e
, line
- e
->curs_line
, 0);
3380 edit_scroll_screen_over_cursor (e
);
3383 /* --------------------------------------------------------------------------------------------- */
3384 /** scroll window so that first visible line is 'line' */
3387 edit_move_display (WEdit
* e
, long line
)
3389 if (line
< e
->start_line
)
3390 edit_scroll_upward (e
, e
->start_line
- line
);
3392 edit_scroll_downward (e
, line
- e
->start_line
);
3395 /* --------------------------------------------------------------------------------------------- */
3396 /** save markers onto undo stack */
3399 edit_push_markers (WEdit
* edit
)
3401 edit_push_undo_action (edit
, MARK_1
+ edit
->mark1
);
3402 edit_push_undo_action (edit
, MARK_2
+ edit
->mark2
);
3403 edit_push_undo_action (edit
, MARK_CURS
+ edit
->end_mark_curs
);
3406 /* --------------------------------------------------------------------------------------------- */
3409 edit_set_markers (WEdit
* edit
, off_t m1
, off_t m2
, long c1
, long c2
)
3418 /* --------------------------------------------------------------------------------------------- */
3419 /** highlight marker toggle */
3422 edit_mark_cmd (WEdit
* edit
, gboolean unmark
)
3424 edit_push_markers (edit
);
3427 edit_set_markers (edit
, 0, 0, 0, 0);
3428 edit
->force
|= REDRAW_PAGE
;
3430 else if (edit
->mark2
>= 0)
3432 edit
->end_mark_curs
= -1;
3433 edit_set_markers (edit
, edit
->curs1
, -1, edit
->curs_col
+ edit
->over_col
,
3434 edit
->curs_col
+ edit
->over_col
);
3435 edit
->force
|= REDRAW_PAGE
;
3439 edit
->end_mark_curs
= edit
->curs1
;
3440 edit_set_markers (edit
, edit
->mark1
, edit
->curs1
, edit
->column1
,
3441 edit
->curs_col
+ edit
->over_col
);
3445 /* --------------------------------------------------------------------------------------------- */
3446 /** highlight the word under cursor */
3449 edit_mark_current_word_cmd (WEdit
* edit
)
3453 for (pos
= edit
->curs1
; pos
!= 0; pos
--)
3457 c1
= edit_get_byte (edit
, pos
);
3458 c2
= edit_get_byte (edit
, pos
- 1);
3459 if (!isspace (c1
) && isspace (c2
))
3461 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
3466 for (; pos
< edit
->last_byte
; pos
++)
3470 c1
= edit_get_byte (edit
, pos
);
3471 c2
= edit_get_byte (edit
, pos
+ 1);
3472 if (!isspace (c1
) && isspace (c2
))
3474 if ((my_type_of (c1
) & my_type_of (c2
)) == 0)
3477 edit
->mark2
= min (pos
+ 1, edit
->last_byte
);
3479 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
3482 /* --------------------------------------------------------------------------------------------- */
3485 edit_mark_current_line_cmd (WEdit
* edit
)
3487 long pos
= edit
->curs1
;
3489 edit
->mark1
= edit_bol (edit
, pos
);
3490 edit
->mark2
= edit_eol (edit
, pos
);
3492 edit
->force
|= REDRAW_LINE_ABOVE
| REDRAW_AFTER_CURSOR
;
3495 /* --------------------------------------------------------------------------------------------- */
3498 edit_delete_line (WEdit
* edit
)
3501 * Delete right part of the line.
3502 * Note that edit_get_byte() returns '\n' when byte position is
3505 while (edit_get_byte (edit
, edit
->curs1
) != '\n')
3506 (void) edit_delete (edit
, TRUE
);
3510 * Note that edit_delete() will not corrupt anything if called while
3511 * cursor position is EOF.
3513 (void) edit_delete (edit
, TRUE
);
3516 * Delete left part of the line.
3517 * Note, that edit_get_byte() returns '\n' when byte position is < 0.
3519 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n')
3520 (void) edit_backspace (edit
, TRUE
);
3523 /* --------------------------------------------------------------------------------------------- */
3526 edit_indent_width (const WEdit
* edit
, off_t p
)
3530 /* move to the end of the leading whitespace of the line */
3531 while (strchr ("\t ", edit_get_byte (edit
, q
)) && q
< edit
->last_byte
- 1)
3533 /* count the number of columns of indentation */
3534 return (long) edit_move_forward3 (edit
, p
, 0, q
);
3537 /* --------------------------------------------------------------------------------------------- */
3540 edit_insert_indent (WEdit
* edit
, int indent
)
3542 if (!option_fill_tabs_with_spaces
)
3544 while (indent
>= TAB_SIZE
)
3546 edit_insert (edit
, '\t');
3550 while (indent
-- > 0)
3551 edit_insert (edit
, ' ');
3554 /* --------------------------------------------------------------------------------------------- */
3557 edit_push_key_press (WEdit
* edit
)
3559 edit_push_undo_action (edit
, KEY_PRESS
+ edit
->start_display
);
3560 if (edit
->mark2
== -1)
3562 edit_push_undo_action (edit
, MARK_1
+ edit
->mark1
);
3563 edit_push_undo_action (edit
, MARK_CURS
+ edit
->end_mark_curs
);
3567 /* --------------------------------------------------------------------------------------------- */
3570 edit_find_bracket (WEdit
* edit
)
3572 edit
->bracket
= edit_get_bracket (edit
, 1, 10000);
3573 if (last_bracket
!= edit
->bracket
)
3574 edit
->force
|= REDRAW_PAGE
;
3575 last_bracket
= edit
->bracket
;
3578 /* --------------------------------------------------------------------------------------------- */
3580 * This executes a command as though the user initiated it through a key
3581 * press. Callback with MSG_KEY as a message calls this after
3582 * translating the key press. This function can be used to pass any
3583 * command to the editor. Note that the screen wouldn't update
3584 * automatically. Either of command or char_for_insertion must be
3585 * passed as -1. Commands are executed, and char_for_insertion is
3586 * inserted at the cursor.
3590 edit_execute_key_command (WEdit
* edit
, unsigned long command
, int char_for_insertion
)
3592 if (command
== CK_MacroStartRecord
|| command
== CK_RepeatStartRecord
3594 && (command
== CK_MacroStartStopRecord
|| command
== CK_RepeatStartStopRecord
)))
3597 edit
->force
|= REDRAW_CHAR_ONLY
| REDRAW_LINE
;
3600 if (macro_index
!= -1)
3602 edit
->force
|= REDRAW_COMPLETELY
;
3603 if (command
== CK_MacroStopRecord
|| command
== CK_MacroStartStopRecord
)
3605 edit_store_macro_cmd (edit
);
3609 if (command
== CK_RepeatStopRecord
|| command
== CK_RepeatStartStopRecord
)
3611 edit_repeat_macro_cmd (edit
);
3617 if (macro_index
>= 0 && macro_index
< MAX_MACRO_LENGTH
- 1)
3619 record_macro_buf
[macro_index
].action
= command
;
3620 record_macro_buf
[macro_index
++].ch
= char_for_insertion
;
3622 /* record the beginning of a set of editing actions initiated by a key press */
3623 if (command
!= CK_Undo
&& command
!= CK_ExtendedKeyMap
)
3624 edit_push_key_press (edit
);
3626 edit_execute_cmd (edit
, command
, char_for_insertion
);
3627 if (edit
->column_highlight
)
3628 edit
->force
|= REDRAW_PAGE
;
3631 /* --------------------------------------------------------------------------------------------- */
3633 This executes a command at a lower level than macro recording.
3634 It also does not push a key_press onto the undo stack. This means
3635 that if it is called many times, a single undo command will undo
3636 all of them. It also does not check for the Undo command.
3639 edit_execute_cmd (WEdit
* edit
, unsigned long command
, int char_for_insertion
)
3641 Widget
*w
= WIDGET (edit
);
3643 if (command
== CK_WindowFullscreen
)
3645 edit_toggle_fullscreen (edit
);
3649 /* handle window state */
3650 if (edit_handle_move_resize (edit
, command
))
3653 edit
->force
|= REDRAW_LINE
;
3655 /* The next key press will unhighlight the found string, so update
3657 if (edit
->found_len
|| edit
->column_highlight
)
3658 edit
->force
|= REDRAW_PAGE
;
3662 /* a mark command with shift-arrow */
3665 case CK_MarkToWordBegin
:
3666 case CK_MarkToWordEnd
:
3672 case CK_MarkPageDown
:
3673 case CK_MarkToFileBegin
:
3674 case CK_MarkToFileEnd
:
3675 case CK_MarkToPageBegin
:
3676 case CK_MarkToPageEnd
:
3677 case CK_MarkScrollUp
:
3678 case CK_MarkScrollDown
:
3679 case CK_MarkParagraphUp
:
3680 case CK_MarkParagraphDown
:
3681 /* a mark command with alt-arrow */
3682 case CK_MarkColumnPageUp
:
3683 case CK_MarkColumnPageDown
:
3684 case CK_MarkColumnLeft
:
3685 case CK_MarkColumnRight
:
3686 case CK_MarkColumnUp
:
3687 case CK_MarkColumnDown
:
3688 case CK_MarkColumnScrollUp
:
3689 case CK_MarkColumnScrollDown
:
3690 case CK_MarkColumnParagraphUp
:
3691 case CK_MarkColumnParagraphDown
:
3692 edit
->column_highlight
= 0;
3693 if (edit
->highlight
== 0 || (edit
->mark2
!= -1 && edit
->mark1
!= edit
->mark2
))
3695 edit_mark_cmd (edit
, TRUE
); /* clear */
3696 edit_mark_cmd (edit
, FALSE
); /* marking on */
3698 edit
->highlight
= 1;
3701 /* any other command */
3703 if (edit
->highlight
)
3704 edit_mark_cmd (edit
, FALSE
); /* clear */
3705 edit
->highlight
= 0;
3708 /* first check for undo */
3709 if (command
== CK_Undo
)
3711 edit
->redo_stack_reset
= 0;
3712 edit_group_undo (edit
);
3713 edit
->found_len
= 0;
3714 edit
->prev_col
= edit_get_col (edit
);
3715 edit
->search_start
= edit
->curs1
;
3718 /* check for redo */
3719 if (command
== CK_Redo
)
3721 edit
->redo_stack_reset
= 0;
3722 edit_do_redo (edit
);
3723 edit
->found_len
= 0;
3724 edit
->prev_col
= edit_get_col (edit
);
3725 edit
->search_start
= edit
->curs1
;
3729 edit
->redo_stack_reset
= 1;
3731 /* An ordinary key press */
3732 if (char_for_insertion
>= 0)
3734 /* if non persistent selection and text selected */
3735 if (!option_persistent_selections
&& edit
->mark1
!= edit
->mark2
)
3736 edit_block_delete_cmd (edit
);
3738 if (edit
->overwrite
)
3740 /* remove char only one time, after input first byte, multibyte chars */
3742 if (!mc_global
.utf8_display
|| edit
->charpoint
== 0)
3744 if (edit_get_byte (edit
, edit
->curs1
) != '\n')
3746 edit_delete (edit
, FALSE
);
3748 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3749 edit_insert_over (edit
);
3751 if (char_for_insertion
> 255 && !mc_global
.utf8_display
)
3753 unsigned char str
[6 + 1];
3757 res
= g_unichar_to_utf8 (char_for_insertion
, (char *) str
);
3767 while (str
[i
] != 0 && i
<= 6)
3769 char_for_insertion
= str
[i
];
3770 edit_insert (edit
, char_for_insertion
);
3776 edit_insert (edit
, char_for_insertion
);
3778 if (option_auto_para_formatting
)
3780 format_paragraph (edit
, 0);
3781 edit
->force
|= REDRAW_PAGE
;
3784 check_and_wrap_line (edit
);
3785 edit
->found_len
= 0;
3786 edit
->prev_col
= edit_get_col (edit
);
3787 edit
->search_start
= edit
->curs1
;
3788 edit_find_bracket (edit
);
3794 case CK_TopOnScreen
:
3795 case CK_BottomOnScreen
:
3808 if (!option_persistent_selections
&& edit
->mark2
>= 0)
3810 if (edit
->column_highlight
)
3811 edit_push_undo_action (edit
, COLUMN_ON
);
3812 edit
->column_highlight
= 0;
3813 edit_mark_cmd (edit
, TRUE
);
3819 case CK_TopOnScreen
:
3820 case CK_BottomOnScreen
:
3821 case CK_MarkToPageBegin
:
3822 case CK_MarkToPageEnd
:
3827 case CK_MarkToWordBegin
:
3828 case CK_MarkToWordEnd
:
3831 case CK_MarkColumnUp
:
3832 case CK_MarkColumnDown
:
3833 if (edit
->mark2
== -1)
3834 break; /*marking is following the cursor: may need to highlight a whole line */
3839 edit
->force
|= REDRAW_CHAR_ONLY
;
3842 /* basic cursor key commands */
3846 /* if non persistent selection and text selected */
3847 if (!option_persistent_selections
&& edit
->mark1
!= edit
->mark2
)
3848 edit_block_delete_cmd (edit
);
3849 else if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3851 else if (option_backspace_through_tabs
&& is_in_indent (edit
))
3853 while (edit_get_byte (edit
, edit
->curs1
- 1) != '\n' && edit
->curs1
> 0)
3854 edit_backspace (edit
, TRUE
);
3856 else if (option_fake_half_tabs
&& is_in_indent (edit
) && right_of_four_spaces (edit
))
3860 for (i
= 0; i
< HALF_TAB_SIZE
; i
++)
3861 edit_backspace (edit
, TRUE
);
3864 edit_backspace (edit
, FALSE
);
3867 /* if non persistent selection and text selected */
3868 if (!option_persistent_selections
&& edit
->mark1
!= edit
->mark2
)
3869 edit_block_delete_cmd (edit
);
3872 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3873 edit_insert_over (edit
);
3875 if (option_fake_half_tabs
&& is_in_indent (edit
) && left_of_four_spaces (edit
))
3879 for (i
= 1; i
<= HALF_TAB_SIZE
; i
++)
3880 edit_delete (edit
, TRUE
);
3883 edit_delete (edit
, FALSE
);
3886 case CK_DeleteToWordBegin
:
3888 edit_left_delete_word (edit
);
3890 case CK_DeleteToWordEnd
:
3891 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3892 edit_insert_over (edit
);
3894 edit_right_delete_word (edit
);
3897 edit_delete_line (edit
);
3899 case CK_DeleteToHome
:
3900 edit_delete_to_line_begin (edit
);
3902 case CK_DeleteToEnd
:
3903 edit_delete_to_line_end (edit
);
3907 if (option_auto_para_formatting
)
3909 edit_double_newline (edit
);
3910 if (option_return_does_auto_indent
)
3911 edit_auto_indent (edit
);
3912 format_paragraph (edit
, 0);
3916 edit_insert (edit
, '\n');
3917 if (option_return_does_auto_indent
)
3918 edit_auto_indent (edit
);
3922 edit_insert (edit
, '\n');
3925 case CK_MarkColumnPageUp
:
3926 edit
->column_highlight
= 1;
3929 edit_move_up (edit
, w
->lines
- 1, 1);
3931 case CK_MarkColumnPageDown
:
3932 edit
->column_highlight
= 1;
3934 case CK_MarkPageDown
:
3935 edit_move_down (edit
, w
->lines
- 1, 1);
3937 case CK_MarkColumnLeft
:
3938 edit
->column_highlight
= 1;
3941 if (option_fake_half_tabs
&& is_in_indent (edit
) && right_of_four_spaces (edit
))
3943 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
3946 edit_cursor_move (edit
, -HALF_TAB_SIZE
);
3947 edit
->force
&= (0xFFF - REDRAW_CHAR_ONLY
);
3950 edit_left_char_move_cmd (edit
);
3952 case CK_MarkColumnRight
:
3953 edit
->column_highlight
= 1;
3956 if (option_fake_half_tabs
&& is_in_indent (edit
) && left_of_four_spaces (edit
))
3958 edit_cursor_move (edit
, HALF_TAB_SIZE
);
3959 edit
->force
&= (0xFFF - REDRAW_CHAR_ONLY
);
3962 edit_right_char_move_cmd (edit
);
3964 case CK_TopOnScreen
:
3965 case CK_MarkToPageBegin
:
3966 edit_begin_page (edit
);
3968 case CK_BottomOnScreen
:
3969 case CK_MarkToPageEnd
:
3970 edit_end_page (edit
);
3973 case CK_MarkToWordBegin
:
3975 edit_left_word_move_cmd (edit
);
3978 case CK_MarkToWordEnd
:
3980 edit_right_word_move_cmd (edit
);
3982 case CK_MarkColumnUp
:
3983 edit
->column_highlight
= 1;
3986 edit_move_up (edit
, 1, 0);
3988 case CK_MarkColumnDown
:
3989 edit
->column_highlight
= 1;
3992 edit_move_down (edit
, 1, 0);
3994 case CK_MarkColumnParagraphUp
:
3995 edit
->column_highlight
= 1;
3996 case CK_ParagraphUp
:
3997 case CK_MarkParagraphUp
:
3998 edit_move_up_paragraph (edit
, 0);
4000 case CK_MarkColumnParagraphDown
:
4001 edit
->column_highlight
= 1;
4002 case CK_ParagraphDown
:
4003 case CK_MarkParagraphDown
:
4004 edit_move_down_paragraph (edit
, 0);
4006 case CK_MarkColumnScrollUp
:
4007 edit
->column_highlight
= 1;
4009 case CK_MarkScrollUp
:
4010 edit_move_up (edit
, 1, 1);
4012 case CK_MarkColumnScrollDown
:
4013 edit
->column_highlight
= 1;
4015 case CK_MarkScrollDown
:
4016 edit_move_down (edit
, 1, 1);
4020 edit_cursor_to_bol (edit
);
4024 edit_cursor_to_eol (edit
);
4027 /* if text marked shift block */
4028 if (edit
->mark1
!= edit
->mark2
&& !option_persistent_selections
)
4030 if (edit
->mark2
< 0)
4031 edit_mark_cmd (edit
, FALSE
);
4032 edit_move_block_to_right (edit
);
4036 if (option_cursor_beyond_eol
)
4037 edit_insert_over (edit
);
4038 edit_tab_cmd (edit
);
4039 if (option_auto_para_formatting
)
4041 format_paragraph (edit
, 0);
4042 edit
->force
|= REDRAW_PAGE
;
4045 check_and_wrap_line (edit
);
4049 case CK_InsertOverwrite
:
4050 edit
->overwrite
= !edit
->overwrite
;
4054 if (edit
->mark2
>= 0)
4056 if (edit
->column_highlight
)
4057 edit_push_undo_action (edit
, COLUMN_ON
);
4058 edit
->column_highlight
= 0;
4060 edit_mark_cmd (edit
, FALSE
);
4063 if (!edit
->column_highlight
)
4064 edit_push_undo_action (edit
, COLUMN_OFF
);
4065 edit
->column_highlight
= 1;
4066 edit_mark_cmd (edit
, FALSE
);
4069 edit_set_markers (edit
, 0, edit
->last_byte
, 0, 0);
4070 edit
->force
|= REDRAW_PAGE
;
4073 if (edit
->column_highlight
)
4074 edit_push_undo_action (edit
, COLUMN_ON
);
4075 edit
->column_highlight
= 0;
4076 edit_mark_cmd (edit
, TRUE
);
4079 if (edit
->column_highlight
)
4080 edit_push_undo_action (edit
, COLUMN_ON
);
4081 edit
->column_highlight
= 0;
4082 edit_mark_current_word_cmd (edit
);
4085 if (edit
->column_highlight
)
4086 edit_push_undo_action (edit
, COLUMN_ON
);
4087 edit
->column_highlight
= 0;
4088 edit_mark_current_line_cmd (edit
);
4092 book_mark_clear (edit
, edit
->curs_line
, BOOK_MARK_FOUND_COLOR
);
4093 if (book_mark_query_color (edit
, edit
->curs_line
, BOOK_MARK_COLOR
))
4094 book_mark_clear (edit
, edit
->curs_line
, BOOK_MARK_COLOR
);
4096 book_mark_insert (edit
, edit
->curs_line
, BOOK_MARK_COLOR
);
4098 case CK_BookmarkFlush
:
4099 book_mark_flush (edit
, BOOK_MARK_COLOR
);
4100 book_mark_flush (edit
, BOOK_MARK_FOUND_COLOR
);
4101 edit
->force
|= REDRAW_PAGE
;
4103 case CK_BookmarkNext
:
4104 if (edit
->book_mark
!= NULL
)
4106 edit_book_mark_t
*p
;
4108 p
= book_mark_find (edit
, edit
->curs_line
);
4109 if (p
->next
!= NULL
)
4112 if (p
->line
>= edit
->start_line
+ w
->lines
|| p
->line
< edit
->start_line
)
4113 edit_move_display (edit
, p
->line
- w
->lines
/ 2);
4114 edit_move_to_line (edit
, p
->line
);
4118 case CK_BookmarkPrev
:
4119 if (edit
->book_mark
!= NULL
)
4121 edit_book_mark_t
*p
;
4123 p
= book_mark_find (edit
, edit
->curs_line
);
4124 while (p
->line
== edit
->curs_line
)
4125 if (p
->prev
!= NULL
)
4129 if (p
->line
>= edit
->start_line
+ w
->lines
|| p
->line
< edit
->start_line
)
4130 edit_move_display (edit
, p
->line
- w
->lines
/ 2);
4131 edit_move_to_line (edit
, p
->line
);
4137 case CK_MarkToFileBegin
:
4138 edit_move_to_top (edit
);
4141 case CK_MarkToFileEnd
:
4142 edit_move_to_bottom (edit
);
4146 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
4147 edit_insert_over (edit
);
4148 edit_block_copy_cmd (edit
);
4151 edit_block_delete_cmd (edit
);
4154 edit_block_move_cmd (edit
);
4157 case CK_BlockShiftLeft
:
4158 if (edit
->mark1
!= edit
->mark2
)
4159 edit_move_block_to_left (edit
);
4161 case CK_BlockShiftRight
:
4162 if (edit
->mark1
!= edit
->mark2
)
4163 edit_move_block_to_right (edit
);
4166 edit_copy_to_X_buf_cmd (edit
);
4169 edit_cut_to_X_buf_cmd (edit
);
4172 /* if non persistent selection and text selected */
4173 if (!option_persistent_selections
&& edit
->mark1
!= edit
->mark2
)
4174 edit_block_delete_cmd (edit
);
4175 if (option_cursor_beyond_eol
&& edit
->over_col
> 0)
4176 edit_insert_over (edit
);
4177 edit_paste_from_X_buf_cmd (edit
);
4178 if (!option_persistent_selections
&& edit
->mark2
>= 0)
4180 if (edit
->column_highlight
)
4181 edit_push_undo_action (edit
, COLUMN_ON
);
4182 edit
->column_highlight
= 0;
4183 edit_mark_cmd (edit
, TRUE
);
4187 edit_paste_from_history (edit
);
4191 edit_save_as_cmd (edit
);
4194 edit_save_confirm_cmd (edit
);
4197 edit_save_block_cmd (edit
);
4200 edit_insert_file_cmd (edit
);
4204 edit_load_back_cmd (edit
);
4207 edit_load_forward_cmd (edit
);
4210 case CK_SyntaxChoose
:
4211 edit_syntax_dialog (edit
);
4215 edit_search_cmd (edit
, FALSE
);
4217 case CK_SearchContinue
:
4218 edit_search_cmd (edit
, TRUE
);
4221 edit_replace_cmd (edit
, 0);
4223 case CK_ReplaceContinue
:
4224 edit_replace_cmd (edit
, 1);
4227 /* if text marked shift block */
4228 if (edit
->mark1
!= edit
->mark2
&& !option_persistent_selections
)
4229 edit_move_block_to_left (edit
);
4231 edit_complete_word_cmd (edit
);
4234 edit_get_match_keyword_cmd (edit
);
4238 case CK_SpellCheckCurrentWord
:
4239 edit_suggest_current_word (edit
);
4242 edit_spellcheck_file (edit
);
4244 case CK_SpellCheckSelectLang
:
4245 edit_set_spell_lang ();
4252 /* fool gcc to prevent a Y2K warning */
4253 char time_format
[] = "_c";
4254 time_format
[0] = '%';
4256 FMT_LOCALTIME_CURRENT (s
, sizeof (s
), time_format
);
4257 edit_print_string (edit
, s
);
4258 edit
->force
|= REDRAW_PAGE
;
4262 edit_goto_cmd (edit
);
4264 case CK_ParagraphFormat
:
4265 format_paragraph (edit
, 1);
4266 edit
->force
|= REDRAW_PAGE
;
4268 case CK_MacroDelete
:
4269 edit_delete_macro_cmd (edit
);
4271 case CK_MatchBracket
:
4272 edit_goto_matching_bracket (edit
);
4275 user_menu (edit
, NULL
, -1);
4278 edit_sort_cmd (edit
);
4280 case CK_ExternalCommand
:
4281 edit_ext_cmd (edit
);
4284 edit_mail_dialog (edit
);
4287 case CK_SelectCodepage
:
4288 edit_select_codepage_cmd (edit
);
4291 case CK_InsertLiteral
:
4292 edit_insert_literal_cmd (edit
);
4294 case CK_MacroStartStopRecord
:
4295 edit_begin_end_macro_cmd (edit
);
4297 case CK_RepeatStartStopRecord
:
4298 edit_begin_end_repeat_cmd (edit
);
4300 case CK_ExtendedKeyMap
:
4301 edit
->extmod
= TRUE
;
4308 if ((command
/ CK_PipeBlock (0)) == 1)
4309 edit_block_process_cmd (edit
, command
- CK_PipeBlock (0));
4311 /* keys which must set the col position, and the search vars */
4315 case CK_SearchContinue
:
4317 case CK_ReplaceContinue
:
4319 edit
->prev_col
= edit_get_col (edit
);
4323 case CK_MarkColumnUp
:
4326 case CK_MarkColumnDown
:
4329 case CK_MarkColumnPageUp
:
4331 case CK_MarkPageDown
:
4332 case CK_MarkColumnPageDown
:
4334 case CK_MarkToFileBegin
:
4336 case CK_MarkToFileEnd
:
4337 case CK_ParagraphUp
:
4338 case CK_MarkParagraphUp
:
4339 case CK_MarkColumnParagraphUp
:
4340 case CK_ParagraphDown
:
4341 case CK_MarkParagraphDown
:
4342 case CK_MarkColumnParagraphDown
:
4344 case CK_MarkScrollUp
:
4345 case CK_MarkColumnScrollUp
:
4347 case CK_MarkScrollDown
:
4348 case CK_MarkColumnScrollDown
:
4349 edit
->search_start
= edit
->curs1
;
4350 edit
->found_len
= 0;
4353 edit
->found_len
= 0;
4354 edit
->prev_col
= edit_get_col (edit
);
4355 edit
->search_start
= edit
->curs1
;
4357 edit_find_bracket (edit
);
4359 if (option_auto_para_formatting
)
4365 case CK_DeleteToWordBegin
:
4366 case CK_DeleteToWordEnd
:
4367 case CK_DeleteToHome
:
4368 case CK_DeleteToEnd
:
4369 format_paragraph (edit
, 0);
4370 edit
->force
|= REDRAW_PAGE
;
4375 /* --------------------------------------------------------------------------------------------- */
4378 edit_stack_init (void)
4380 for (edit_stack_iterator
= 0; edit_stack_iterator
< MAX_HISTORY_MOVETO
; edit_stack_iterator
++)
4382 edit_history_moveto
[edit_stack_iterator
].filename_vpath
= NULL
;
4383 edit_history_moveto
[edit_stack_iterator
].line
= -1;
4386 edit_stack_iterator
= 0;
4389 /* --------------------------------------------------------------------------------------------- */
4392 edit_stack_free (void)
4394 for (edit_stack_iterator
= 0; edit_stack_iterator
< MAX_HISTORY_MOVETO
; edit_stack_iterator
++)
4395 vfs_path_free (edit_history_moveto
[edit_stack_iterator
].filename_vpath
);
4398 /* --------------------------------------------------------------------------------------------- */
4402 edit_move_up (WEdit
* edit
, long i
, gboolean do_scroll
)
4404 edit_move_updown (edit
, i
, do_scroll
, TRUE
);
4407 /* --------------------------------------------------------------------------------------------- */
4411 edit_move_down (WEdit
* edit
, long i
, gboolean do_scroll
)
4413 edit_move_updown (edit
, i
, do_scroll
, FALSE
);
4416 /* --------------------------------------------------------------------------------------------- */