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1 /*	$NetBSD: el.h,v 1.25 2011/07/29 23:44:44 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 1992, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Christos Zoulas of Cornell University.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *	@(#)el.h	8.1 (Berkeley) 6/4/93
35  */
36 
37 /*
38  * el.h: Internal structures.
39  */
40 #ifndef _h_el
41 #define	_h_el
42 /*
43  * Local defaults
44  */
45 #define	KSHVI
46 #define	VIDEFAULT
47 #define	ANCHOR
48 
49 #include "histedit.h"
50 #include "chartype.h"
51 #include <stdio.h>
52 #include <sys/types.h>
53 
54 #define	EL_BUFSIZ	((size_t)1024)	/* Maximum line size		*/
55 
56 #define	HANDLE_SIGNALS	0x01
57 #define	NO_TTY		0x02
58 #define	EDIT_DISABLED	0x04
59 #define	UNBUFFERED	0x08
60 #define	CHARSET_IS_UTF8 0x10
61 #define	IGNORE_EXTCHARS 0x20            /* Ignore characters read > 0xff */
62 #define	NARROW_HISTORY	0x40
63 #define	NARROW_READ	0x80
64 
65 typedef int bool_t;			/* True or not			*/
66 
67 typedef unsigned char el_action_t;	/* Index to command array	*/
68 
69 typedef struct coord_t {		/* Position on the screen	*/
70 	int	h;
71 	int	v;
72 } coord_t;
73 
74 typedef struct el_line_t {
75 	Char 		*buffer;	/* Input line			*/
76 	Char	        *cursor;	/* Cursor position		*/
77 	Char	        *lastchar;	/* Last character		*/
78 	const Char	*limit;		/* Max position			*/
79 } el_line_t;
80 
81 /*
82  * Editor state
83  */
84 typedef struct el_state_t {
85 	int		inputmode;	/* What mode are we in?		*/
86 	int		doingarg;	/* Are we getting an argument?	*/
87 	int		argument;	/* Numeric argument		*/
88 	int		metanext;	/* Is the next char a meta char */
89 	el_action_t	lastcmd;	/* Previous command		*/
90 	el_action_t	thiscmd;	/* this command 		*/
91 	Char		thisch;		/* char that generated it	*/
92 } el_state_t;
93 
94 /*
95  * Until we come up with something better...
96  */
97 #define	el_malloc(a)	malloc(a)
98 #define	el_realloc(a,b)	realloc(a, b)
99 #define	el_free(a)	free(a)
100 
101 #include "tty.h"
102 #include "prompt.h"
103 #include "keymacro.h"
104 #include "terminal.h"
105 #include "refresh.h"
106 #include "chared.h"
107 #include "common.h"
108 #include "search.h"
109 #include "hist.h"
110 #include "map.h"
111 #include "parse.h"
112 #include "sig.h"
113 #include "help.h"
114 #include "read.h"
115 
116 struct editline {
117 	Char		 *el_prog;	/* the program name		*/
118 	FILE		 *el_infile;	/* Stdio stuff			*/
119 	FILE		 *el_outfile;	/* Stdio stuff			*/
120 	FILE		 *el_errfile;	/* Stdio stuff			*/
121 	int		  el_infd;	/* Input file descriptor	*/
122 	int		  el_outfd;	/* Output file descriptor	*/
123 	int		  el_errfd;	/* Error file descriptor	*/
124 	int		  el_flags;	/* Various flags.		*/
125 	int		  el_errno;	/* Local copy of errno		*/
126 	coord_t		  el_cursor;	/* Cursor location		*/
127 	Char		**el_display;	/* Real screen image = what is there */
128 	Char		**el_vdisplay;	/* Virtual screen image = what we see */
129 	void		 *el_data;	/* Client data			*/
130 	el_line_t	  el_line;	/* The current line information	*/
131 	el_state_t	  el_state;	/* Current editor state		*/
132 	el_terminal_t	  el_terminal;	/* Terminal dependent stuff	*/
133 	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
134 	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
135 	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
136 	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
137 	el_chared_t	  el_chared;	/* Characted editor stuff	*/
138 	el_map_t	  el_map;	/* Key mapping stuff		*/
139 	el_keymacro_t	  el_keymacro;	/* Key binding stuff		*/
140 	el_history_t	  el_history;	/* History stuff		*/
141 	el_search_t	  el_search;	/* Search stuff			*/
142 	el_signal_t	  el_signal;	/* Signal handling stuff	*/
143 	el_read_t	  el_read;	/* Character reading stuff	*/
144 #ifdef WIDECHAR
145 	ct_buffer_t       el_scratch;   /* Scratch conversion buffer    */
146 	ct_buffer_t       el_lgcyconv;  /* Buffer for legacy wrappers   */
147 	LineInfo          el_lgcylinfo; /* Legacy LineInfo buffer       */
148 #endif
149 };
150 
151 protected int	el_editmode(EditLine *, int, const Char **);
152 
153 #ifdef DEBUG
154 #define	EL_ABORT(a)	do { \
155 				fprintf(el->el_errfile, "%s, %d: ", \
156 					 __FILE__, __LINE__); \
157 				fprintf a; \
158 				abort(); \
159 			} while( /*CONSTCOND*/0);
160 #else
161 #define EL_ABORT(a)	abort()
162 #endif
163 #endif /* _h_el */
164