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el.h
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)4096) /* 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_MULTIBYTE 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 "el_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 /* XXXMYSQL: Bug#23097 mysql can't insert korean on mysql prompt. */
154 #define el_isprint(x) ((unsigned char) (x) < 0x80 ? isprint(x) : 1)
155 
156 #ifdef DEBUG
157 #define EL_ABORT(a) do { \
158  fprintf(el->el_errfile, "%s, %d: ", \
159  __FILE__, __LINE__); \
160  fprintf a; \
161  abort(); \
162  } while( /*CONSTCOND*/0);
163 #else
164 #define EL_ABORT(a) abort()
165 #endif
166 #endif /* _h_el */