aee.h

aee是一种易使用的文本编辑器。你可以不用说明书来使用它。它提供终端接口和本地的X-windows接口。它的特性包括即弹的菜单

/*
 |	aee.h
 |
 |	$Header: /home/hugh/sources/aee/RCS/aee.h,v 1.36 1999/02/01 01:09:37 hugh Exp $
 |
 |	Copyright (c) 1986 - 1988, 1991 - 1996, 1999 Hugh Mahon.
 |
 */

#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <pwd.h>
#include <limits.h>

#ifdef HAS_SYS_WAIT
#include <sys/wait.h>
#endif

#ifdef HAS_STDLIB
#include <stdlib.h>
#endif

#ifdef HAS_STDARG
#include <stdarg.h>
#endif

#ifdef HAS_UNISTD
#include <unistd.h>
#endif

#ifdef HAS_CTYPE
#include <ctype.h>
#endif


extern int eightbit;		/* eight bit character flag		*/

#ifndef XAE
#ifdef NCURSE
#include "new_curse.h"
#else
#include <curses.h>
#endif
#else	/* ifdef XAE	*/
#ifdef xae11
#include "Xcurse.h"
#else
#include "X10curse.h"
#endif	/* xae11 */
#endif	/* XAE */

extern struct stat buf;

#ifndef XAE
#ifdef SYS5			/* System V specific tty operations	*/
extern struct termio old_term;
extern struct termio new_term;
#include <fcntl.h>
#else
extern struct sgttyb old_term;
extern struct sgttyb new_term;
#endif
#endif	/* XAE */

#ifndef SIGCHLD
#define SIGCHLD SIGCLD
#endif

#define TAB 9

#ifdef NAME_MAX
#define MAX_NAME_LEN NAME_MAX
#else
#define MAX_NAME_LEN 15
#endif	/* NAME_MAX	*/

#ifndef NO_CATGETS
#include <locale.h>
#include <nl_types.h>

extern nl_catd catalog;
#else
#define catgetlocal(a, b) (b)
#endif /* NO_CATGETS */

#ifndef max
#define max(a, b) ((a) > (b) ? (a) : (b))
#endif /* max */

#ifndef min
#define min(a, b) ((a) < (b) ? (a) : (b))
#endif /* min */


#define Mark 1	/* mark text (don't keep previous paste buffer contents)  */
#define Append 2	/* place new text into paste buffer after contents  */
#define Prefix 3	/* place new text into paste buffer before contents */

extern int errno;

#define NO_FURTHER_LINES 0x0 /* indicates end of data, since offset 
				will never be zero in journal file (file name 
				is written there, not data)      */

struct ae_file_info {			/* info about line in journal file */
	unsigned long info_location;	/* location of this info in file*/
	unsigned long prev_info;	/* info for previous line	*/
	unsigned long next_info;	/* info for next line		*/
	unsigned long line_location;	/* actual data in line		*/
	/* use length of line in bytes from the text data structure below */
	};

struct text {
	char *line;			/* line of characters		*/
	int line_number;		/* line number			*/
	int line_length;  /* actual number of characters in the line 
					   (includes NULL at end of line) */
	int max_length; /* maximum number of characters the line handles */
	int vert_len;	/* number of lines the current line occupies on the screen */
	struct text *next_line;		/* next line of text		*/
	struct text *prev_line;		/* previous line of text	*/
	struct ae_file_info file_info;
	char changed;		/* flag indicating info in line changed */
	};

extern struct text *first_line;	/* first line of current buffer		*/
extern struct text *dlt_line;	/* structure for info on deleted line	*/
extern struct text *curr_line;	/* current line cursor is on		*/
extern struct text *fpste_line;	/* first line of select buffer		*/
extern struct text *cpste_line;	/* current paste/select line		*/
extern struct text *paste_buff;	/* first line of paste buffer		*/
extern struct text *pste_tmp;	/* temporary paste pointer		*/
extern struct text *tmp_line;	/* temporary line pointer		*/
extern struct text *srch_line;	/* temporary pointer for search routine */


struct files {		/* structure to store names of files to be edited*/
	char *name;		/* name of file				*/
	struct files *next_name;
	};

extern struct files *top_of_stack;

struct bufr {			/* structure for names of buffers	*/
	char *name;		/* name of buffer			*/
	struct text *first_line;/* pointer to first line of buffer	*/
	struct bufr *next_buff; /* pointer to next record		*/
	struct text *curr_line;	/* pointer to the current line in buffer*/
	int scr_vert;		/* the last vertical value of buffer	*/
	int scr_horz;		/* the last horizontal value in buffer	*/
	int scr_pos;		/* horizontal offset from start of line	*/
	int position;		/* the last value of position in buffer */
	int abs_pos;		/* 'absolute' horizontal position	*/
	char *pointer;		/* the last value of point in buffer	*/
	WINDOW *win;		/* the window pointer for buffer	*/
	WINDOW *footer;		/* window containing name of window	*/
	int lines;		/* number of lines			*/
	int last_line;		/* last line visible in window		*/
	int last_col;		/* last column visible in the window	*/
	int num_of_lines;	/* number of lines of text total in buffer  */
	int absolute_lin;	/* number of lines from top		*/
	int window_top;	/* # of lines top of window is from top of screen  */
	int journ_fd;		/* file descriptor for journal file	*/
	char journalling;	/* flag indicating if journalling active 
							for this buffer */
	char *journal_file;	/* name of journal file for this buffer	*/
	char *file_name;	/* name of file being edited		*/
	char *full_name;	/* full name of file being edited	*/
	char changed;		/* contents of the buffer have changed	*/
	char *orig_dir;		/* original directory where edit started */
	char main_buffer;	/* true if this is the first buffer 	*/
	char edit_buffer;	/* true if created as a result of edit cmd */
	char dos_file;		/* true if file uses (or is to use) CR/LF 
				   instead of just LF as line terminator   */
	};

extern struct bufr *first_buff;	/* first buffer in list			*/
extern struct bufr *curr_buff;	/* pointer to current buffer		*/
extern struct bufr *t_buff;	/* temporary pointer for buffers	*/

struct tab_stops {		/* structure to store tab stops		*/
	int column;		/* column for tab			*/
	struct tab_stops *next_stop;
	};

extern struct tab_stops *tabs;

struct del_buffs {
	int flag;
	char character;
	char *string;
	int length;
	struct del_buffs *prev;
	struct del_buffs *next;
	};

/*
 |	structure for mapping journal files to file names
 */

struct journal_db {
	char *file_name;
	char *journal_name;
	struct journal_db *next;
	};

extern struct del_buffs *undel_first;
extern struct del_buffs *undel_current;

extern WINDOW *com_win;		/* command window			*/
extern WINDOW *help_win;	/* window for help facility		*/
extern int windows;		/* flag for windows or no windows	*/
extern WINDOW *info_win;

extern int lines_moved;		/* number of lines moved in search	*/
extern int d_wrd_len;		/* length of deleted word		*/
extern int value;		/* temporary integer value		*/
extern int tmp_pos;		/* temporary position			*/
extern int tmp_vert;		/* temporary vertical position		*/
extern int tmp_horz;		/* temporary horizontal position	*/
extern int repl_length;		/* length of string to replace		*/
extern int pst_pos;		/* position in cpste_line->line		*/
extern int gold_count;		/* number of times to execute pressed key */
extern int fildes;		/* file descriptor			*/
extern int get_fd;		/* get file descriptor			*/
extern int write_fd;		/* write file descriptor		*/
extern int num_of_bufs;		/* the number of buffers that exist	*/
extern int temp_stdin;		/* temporary storage for stdin		*/
extern int temp_stdout;		/* temp storage for stdout descriptor	*/
extern int temp_stderr;		/* temp storage for stderr descriptor	*/
extern int pipe_out[2];		/* pipe file desc for output		*/
extern int pipe_in[2];		/* pipe file descriptors for input	*/
extern int line_wrap;		/* should line extend forever?		*/
extern int right_margin;	/* right margin	(if observ_margins = TRUE) */
extern int left_margin;		/* left margin				*/
extern int info_type;
extern int info_win_height;
extern int local_LINES;	/* copy of LINES, to detect when win resizes	*/
extern int local_COLS;	/* copy of COLS, to detect when win resizes	*/
extern int bit_bucket;	/* file descriptor to /dev/null			*/
extern int tab_spacing;	/* spacing for tabs				*/

/*
 |	boolean flags
 */

extern char mark_text;		/* flag to indicate if MARK is active	*/
extern char journ_on;		/* flag for journaling			*/
extern char input_file;		/* indicate to read input file		*/
extern char recv_file;		/* indicate reading a file		*/
extern char edit;		/* continue executing while true	*/
extern char gold;		/* 'gold' function key pressed		*/
extern char recover;		/* set true if recover operation to occur */
extern char case_sen;		/* case sensitive search flag		*/
extern char change;		/* indicate changes have been made to file*/
extern char go_on;		/* loop control for help function	*/
extern char clr_cmd_line;	/* flag set to clear command line	*/
extern char literal;		/* is search string to be interpreted literally? */
extern char forward;	/* if TRUE, search after cursor, else search before cursor */
extern char echo_flag;		/* allow/disallow echo in init file	*/
extern char status_line;	/* place status info in the bottom line	*/
extern char overstrike;		/* overstrike / insert mode flag	*/
extern char indent;		/* auto-indent mode flag		*/
extern char expand;		/* expand tabs flag			*/
extern char shell_fork;
extern char out_pipe;		/* flag that info is piped out		*/
extern char in_pipe;		/* flag that info is piped in		*/
extern char observ_margins;	/* should margins be observed		*/
extern char right_justify;	/* justify right margin when formatting */
extern char free_d_line;	/* free d_line (already freed from del list) */
extern char free_d_word;	/* free d_word (already freed from del list) */
extern char info_window;	/* is info window displayed?		*/
extern char auto_format;	/* automatically format paragraph	*/
extern char formatted;		/* has paragraph been formatted?	*/
extern char window_resize;	/* flag to indicate a resize has occurred */
extern char change_dir_allowed;	/* flag to indicate if chdir is allowed */
extern char restricted;		/* flag to indicate restricted mode	*/
extern char com_win_initialized;
extern char text_only;		/* editor is to treat file being read as 
				   text only (not a binary file)	*/

#define CHAR_DELETED 1
#define CHAR_BACKSPACE 2
#define WORD_DELETED 3
#define LINE_DELETED 4

extern long mask;		/* mask for sigblock			*/
#ifdef XAE
extern int win_width;		/* width and height of edit session window */
extern int win_height;
extern char *xsrch_string;
extern char *xold_string;
extern char *xnew_string;
extern Window testwin;
#endif

extern char in_string[513];	/* input buffer string			*/
extern char *pst_line;		/* start of paste line			*/
extern char *pst_pnt;		/* current position within paste line	*/
extern char *pste1;		/* temporary pointers for cut/paste ops */
extern char *pste2;
extern char *pste3;
extern char *old_string;	/* old string to be replaced		*/
extern char *u_old_string;	/* upper case verson of old_string	*/
extern char *new_string;	/* new string to insert instead of old	*/
extern char *srch_str;		/* pointer for search string		*/
extern char *u_srch_str;	/* pointer to non-case sensitive search */
extern char *in_file_name;	/* name of input file and path		*/
extern char *short_file_name;	/* name of input file only		*/
extern char *journ;		/* name of journal file			*/
extern char *journal_dir;	/* name of journal directory		*/
extern char *out_file;		/* name of output file if not input file*/
extern char *tmp_file;		/* temporary file name			*/
extern char d_char;		/* deleted character			*/
extern char *d_word;		/* deleted word				*/
extern char *d_line;		/* deleted line				*/
extern char *term_type;		/* type of terminal being used		*/
extern char *help_line;		/* input line for help facility		*/
extern char *sline;		/* temporary line pointer for help fac	*/
extern char *subject;		/* subject user wants to learn about	*/
extern char *start_of_string;	/* start of search string		*/
extern char match_char;		/* character found by search for match	*/
extern char in_buff_name[128];	/* input buffer name			*/
extern char out_buff_name[128];	/* output buffer name			*/
extern char *start_at_line;	/* move to this line at start of session*/
extern char *print_command;	/* string to hold command for printing file */
extern char nohighlight;

extern char *ctr[32];		/* control key strings			*/
extern char ctr_changed[32];	/* control key strings changed flags	*/
extern char *g_ctr[32];		/* gold control key strings		*/
extern char g_ctr_changed[32];	/* gold control key strings changed 	*/
extern char *f[64];		/* function key strings			*/
extern char f_changed[64];	/* function key strings			*/
extern char *g_f[64];		/* gold function key strings		*/
extern char g_f_changed[64];	/* gold function key strings		*/
extern char *ctrl_table[];
extern char *keypads[5];	/* keypad keys from terminfo		*/
extern char *g_keypads[5];	/* keypad keys from terminfo		*/
extern char *ctrl_table[];

extern int in;			/* input character			*/

extern FILE *fp;		/* file pointer for input		*/
extern FILE *outp;		/* pointer for output file		*/
extern FILE *temp_fp;		/* temporary file pointer		*/
extern FILE *get_fp;		/* read file pointer			*/
extern FILE *write_fp;		/* write file pointer			*/

#define MAX_HELP_LINES	15
#define MAX_HELP_COLS	129

extern char info_data[MAX_HELP_LINES][MAX_HELP_COLS];

struct edit_keys {
	char *macro;
	char *description;
	short fkey, gfkey, ckey, gckey;
	};

extern struct edit_keys assignment[];