edit.h

具有IDE功能的编辑器

/* edit.h - main include file

   Copyright (C) 1996-2000 the Free Software Foundation

   Authors: 1996, 1997 Paul Sheer

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307, USA.
*/

#ifndef __EDIT_H
#define __EDIT_H

#ifdef MIDNIGHT

#ifdef HAVE_SLANG
#define HAVE_SYNTAXH 1
#endif

#    include <stdio.h>
#    include <stdarg.h>
#    include <sys/types.h>
#    ifdef HAVE_UNISTD_H
#    	 include <unistd.h>
#    endif
#    include <string.h>
#    include <ctype.h>
#    include <errno.h>
#    include "src/tty.h"
#    include <sys/stat.h>
#    include <errno.h>

#    include <fcntl.h>

#    include <stdlib.h>
#    include <malloc.h>

#else       /* ! MIDNIGHT */

#    include "global.h"
#    include <stdio.h>
#    include <stdarg.h>
#    include <sys/types.h>
#    ifdef HAVE_WCHAR_H
#    include <wchar.h>
#    endif
     
#    	 ifdef HAVE_UNISTD_H
#    	     include <unistd.h>
#    	 endif
     
#ifdef GTK
#    include <string.h>
#else
#    include <my_string.h>
#endif
#    include <ctype.h>
#    include <errno.h>
#    include <sys/stat.h>
     
#    ifdef HAVE_FCNTL_H
#    	 include <fcntl.h>
#    endif
     
#    include <stdlib.h>
#    include <stdarg.h>

#    if TIME_WITH_SYS_TIME
#    	 include <sys/time.h>
#    	 include <time.h>
#    else
#    	 if HAVE_SYS_TIME_H
#    	     include <sys/time.h>
#    	 else
#    	     include <time.h>
#    	 endif
#    endif
 
#    include "regex.h"

#endif

#ifndef MIDNIGHT

#    include <signal.h>
#    include <X11/Xlib.h>
#    include <X11/Xutil.h>
#    include <X11/Xresource.h>
#    include "lkeysym.h"
#ifndef GTK
#    include "coolwidget.h"
#    include "app_glob.c"
#    include "coollocal.h"
#    include "stringtools.h"
#else
#    include "gtk/gtk.h"
#    include "gdk/gdkprivate.h"
#    include "gdk/gdk.h"
#    include "gtkedit.h"
#    include "editcmddef.h"
#    ifndef _
#        define _(x) x
#        define N_(x) x
#    endif
#endif

#else

#    include "src/global.h"
#    include "src/main.h"		/* for char *shell */
#    include "src/mad.h"
#    include "src/dlg.h"
#    include "src/widget.h"
#    include "src/color.h"
#    include "src/dialog.h"
#    include "src/mouse.h"
#    include "src/help.h"
#    include "src/key.h"
#    include "src/wtools.h"		/* for QuickWidgets */
#    include "src/win.h"
#    include "vfs/vfs.h"
#    include "src/menu.h"
#    include <regex.h>
#    define WANT_WIDGETS
     
#    define WIDGET_COMMAND (WIDGET_USER + 10)
#    define N_menus 5

#endif

#ifdef GTK
/* unistd.h defines _POSIX_VERSION on POSIX.1 systems. */
#if defined(HAVE_DIRENT_H) || defined(_POSIX_VERSION)
#   include <dirent.h>
#   define NLENGTH(dirent) (strlen ((dirent)->d_name))
#else
#   define dirent direct
#   define NLENGTH(dirent) ((dirent)->d_namlen)

#   ifdef HAVE_SYS_NDIR_H
#       include <sys/ndir.h>
#   endif /* HAVE_SYS_NDIR_H */

#   ifdef HAVE_SYS_DIR_H
#       include <sys/dir.h>
#   endif /* HAVE_SYS_DIR_H */

#   ifdef HAVE_NDIR_H
#       include <ndir.h>
#   endif /* HAVE_NDIR_H */
#endif /* not (HAVE_DIRENT_H or _POSIX_VERSION) */
#   ifndef _
#      define _(x) x
#      define N_(x) x
#   endif
#include "vfs/vfs.h"
#    define CDisplay gdk_display
#    define CRoot gdk_root_parent
#    define Window GtkEdit *
#endif

#define SEARCH_DIALOG_OPTION_NO_SCANF	1
#define SEARCH_DIALOG_OPTION_NO_REGEX	2
#define SEARCH_DIALOG_OPTION_NO_CASE	4
#define SEARCH_DIALOG_OPTION_BACKWARDS	8
#define SEARCH_DIALOG_OPTION_BOOKMARK	16

#define SYNTAX_FILE "/.cedit/Syntax"
#define CLIP_FILE "/.cedit/cooledit.clip"
#define MACRO_FILE "/.cedit/cooledit.macros"
#define PARMESS_FILE "/.cedit/no_para_highlight_mess"
#define BLOCK_FILE "/.cedit/cooledit.block"
#define ERROR_FILE "/.cedit/cooledit.error"
#define TEMP_FILE "/.cedit/cooledit.temp"
#define SCRIPT_FILE "/.cedit/cooledit.script"
#define EDIT_DIR "/.cedit"

#define EDIT_KEY_EMULATION_NORMAL 0
#define EDIT_KEY_EMULATION_EMACS  1

#define REDRAW_LINE          (1 << 0)
#define REDRAW_LINE_ABOVE    (1 << 1)
#define REDRAW_LINE_BELOW    (1 << 2)
#define REDRAW_AFTER_CURSOR  (1 << 3)
#define REDRAW_BEFORE_CURSOR (1 << 4)
#define REDRAW_PAGE          (1 << 5)
#define REDRAW_IN_BOUNDS     (1 << 6)
#define REDRAW_CHAR_ONLY     (1 << 7)
#define REDRAW_COMPLETELY    (1 << 8)

#define MOD_ABNORMAL		(1 << 0)
#define MOD_UNDERLINED		(1 << 1)
#define MOD_BOLD		(1 << 2)
#define MOD_HIGHLIGHTED		(1 << 3)
#define MOD_MARKED		(1 << 4)
#define MOD_ITALIC		(1 << 5)
#define MOD_CURSOR		(1 << 6)
#define MOD_INVERSE		(1 << 7)
#define MOD_TAB			(1 << 8)
#define MOD_PIXMAP		(1 << 9)
#define MOD_REVERSE		(1 << 10)

#ifndef MIDNIGHT
#    ifdef GTK
#        define EDIT_TEXT_HORIZONTAL_OFFSET 0
#        define EDIT_TEXT_VERTICAL_OFFSET 0
#    else
#        define EDIT_TEXT_HORIZONTAL_OFFSET 4
#        define EDIT_TEXT_VERTICAL_OFFSET 3
#    endif
#else
#    define EDIT_TEXT_HORIZONTAL_OFFSET 0
#    define EDIT_TEXT_VERTICAL_OFFSET 1
#    define FONT_OFFSET_X 0
#    define FONT_OFFSET_Y 0
#endif

#define EDIT_RIGHT_EXTREME option_edit_right_extreme
#define EDIT_LEFT_EXTREME option_edit_left_extreme
#define EDIT_TOP_EXTREME option_edit_top_extreme
#define EDIT_BOTTOM_EXTREME option_edit_bottom_extreme

#define MAX_MACRO_LENGTH 1024

/*there are a maximum of ... */
#define MAXBUFF 1024
/*... edit buffers, each of which is ... */
#define EDIT_BUF_SIZE 0x10000
/* ...bytes in size. */

/*x / EDIT_BUF_SIZE equals x >> ... */
#define S_EDIT_BUF_SIZE 16

/* x % EDIT_BUF_SIZE is equal to x && ... */
#define M_EDIT_BUF_SIZE 0xFFFF

#define SIZE_LIMIT (EDIT_BUF_SIZE * (MAXBUFF - 2))
/* Note a 16k stack is 64k of data and enough to hold (usually) around 10
   pages of undo info. */

/* undo stack */
#define START_STACK_SIZE 32


/*some codes that may be pushed onto or returned from the undo stack: */
#define CURS_LEFT 601
#define CURS_RIGHT 602
#define DELETE 603
#define BACKSPACE 604
#define STACK_BOTTOM 605
#define CURS_LEFT_LOTS 606
#define CURS_RIGHT_LOTS 607
#define COLUMN_ON 608
#define COLUMN_OFF 609
#define MARK_1 1000
#define MARK_2 700000000
#define KEY_PRESS 1400000000

/*Tabs spaces: (sofar only HALF_TAB_SIZE is used: */
#define TAB_SIZE		option_tab_spacing
#define HALF_TAB_SIZE		((int) option_tab_spacing / 2)

struct macro {
    int command;
    long ch;
};

/* this must be the same as struct edit_selection from rxvtlib.h */
struct selection {
   unsigned char * text;
   int len;
};

struct mb_rule {
    long ch;
    char end;
#ifdef HAVE_WCHAR_H
    mbstate_t shift_state;
#else
    long shift_state;
#endif
};

struct _mb_marker {
    long offset;
    struct mb_rule rule;
    struct _mb_marker *next;
};

#define wc_isgraph(c) (isgraph(c & 0xFF) && (unsigned long) c < 0x100UL)
#define wc_isprint(c) (isprint(c & 0xFF) && (unsigned long) c < 0x100UL)
#define wc_isspace(c) (isspace(c & 0xFF) && (unsigned long) c < 0x100UL)

struct syntax_rule {
    unsigned short keyword;
    unsigned char end;
    unsigned char context;
    unsigned char _context;
#define RULE_ON_LEFT_BORDER 1
#define RULE_ON_RIGHT_BORDER 2
    unsigned char border;
};

#define MAX_WORDS_PER_CONTEXT	1024
#define MAX_CONTEXTS		128

struct key_word {
    char *keyword;
    unsigned char first;
    char *whole_word_chars_left;
    char *whole_word_chars_right;
    time_t time;
#define NO_COLOR 0x7FFFFFFF
#define SPELLING_ERROR 0x7EFEFEFE
    int line_start;
    int bg;
    int fg;
};

struct context_rule {
    char *left;
    unsigned char first_left;
    char *right;
    unsigned char first_right;
    char line_start_left;
    char line_start_right;
    int single_char;
    int between_delimiters;
    char *whole_word_chars_left;
    char *whole_word_chars_right;
    char *keyword_first_chars;
    int spelling;
/* first word is word[1] */
    struct key_word **keyword;
};

struct _syntax_marker {
    long offset;
    struct syntax_rule rule;
    struct _syntax_marker *next;
};

struct _book_mark {
    int line;		/* line number */
#if 0
#define BOOK_MARK_COLOR ((0 << 8) | 26)		/* black on white */
#endif
#define BOOK_MARK_COLOR ((25 << 8) | 5)
#define BOOK_MARK_FOUND_COLOR ((26 << 8) | 4)
    int c;		/* colour */
    struct _book_mark *next;
    struct _book_mark *prev;
};

struct editor_widget {
#ifdef MIDNIGHT
    Widget widget;
#elif defined(GTK)
    GtkEdit *widget;
#else
    struct cool_widget *widget;
#endif
#define from_here num_widget_lines
    int num_widget_lines;
    int num_widget_columns;

#ifdef MIDNIGHT
    int have_frame;
#else
    int stopped;
#endif

    char *filename;		/* Name of the file */
    char *dir;			/* current directory */

/* dynamic buffers and cursor position for editor: */
    long curs1;			/*position of the cursor from the beginning of the file. */
    long curs2;			/*position from the end of the file */
    unsigned char *buffers1[MAXBUFF + 1];	/*all data up to curs1 */
    unsigned char *buffers2[MAXBUFF + 1];	/*all data from end of file down to curs2 */

/* search variables */
    long search_start;		/* First character to start searching from */
    int found_len;		/* Length of found string or 0 if none was found */
    long found_start;		/* the found word from a search - start position */

/* display information */
    long last_byte;		/* Last byte of file */
    long start_display;		/* First char displayed */
    long start_col;		/* First displayed column, negative */
    long max_column;		/* The maximum cursor position ever reached used to calc hori scroll bar */
    long curs_row;		/*row position of cursor on the screen */
    long curs_col;		/*column position on screen */
    int force;			/* how much of the screen do we redraw? */
    unsigned char overwrite;
    unsigned char modified;	/*has the file been changed?: 1 if char inserted or
				   deleted at all since last load or save */
    unsigned char screen_modified;	/* has the file been changed since the last screen draw? */
#if defined(MIDNIGHT) || defined(GTK)
    int delete_file;			/* has the file been created in edit_load_file? Delete
			           it at end of editing when it hasn't been modified 
				   or saved */
#endif				   
    unsigned char highlight;
    long prev_col;		/*recent column position of the cursor - used when moving
				   up or down past lines that are shorter than the current line */
    long curs_line;		/*line number of the cursor. */
    long start_line;		/*line nummber of the top of the page */

/* file info */
    long total_lines;		/*total lines in the file */
    long mark1;			/*position of highlight start */
    long mark2;			/*position of highlight end */
    int column1;			/*position of column highlight start */
    int column2;			/*position of column highlight end */
    long bracket;		/*position of a matching bracket */

/* cache speedup for line lookups */
#define N_LINE_CACHES	32
    int caches_valid;
    int line_numbers[N_LINE_CACHES];
    long line_offsets[N_LINE_CACHES];

    struct _book_mark *book_mark;

/* undo stack and pointers */
    unsigned long stack_pointer;
    long *undo_stack;
    unsigned long stack_size;
    unsigned long stack_size_mask;
    unsigned long stack_bottom;
    struct stat stat;

/* syntax higlighting */
    struct _syntax_marker *syntax_marker;
    struct context_rule **rules;
    long last_get_rule;
    struct syntax_rule rule;
    int syntax_invalidate;
    char *syntax_type;		/* description of syntax highlighting type being used */
    int explicit_syntax;	/* have we forced the syntax hi. type in spite of the filename? */

    struct _mb_marker *mb_marker;
    long last_get_mb_rule;
    struct mb_rule mb_rule;
    int mb_invalidate;

    struct shell_job {
	char *name;
	pid_t pid;
	int in, out, close_on_error;
	struct shell_job *next;
    } *jobs;

    int to_here;		/* dummy marker */


/* macro stuff */
    int macro_i;		/* -1 if not recording index to macro[] otherwise */
    struct macro macro[MAX_MACRO_LENGTH];
};

typedef struct editor_widget WEdit;

#ifndef MIDNIGHT