How buggy this little piece of code could be? Repair strnvis() buffersize
[dragonfly.git] / lib / libedit / el.h
1 /*-
2  * Copyright (c) 1992, 1993
3  *      The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Christos Zoulas of Cornell University.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * @(#)el.h     8.1 (Berkeley) 6/4/93
33  * $NetBSD: el.h,v 1.17 2006/12/15 22:13:33 christos Exp $
34  * $DragonFly: src/lib/libedit/el.h,v 1.3 2007/05/05 00:27:39 pavalos Exp $
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 <stdio.h>
50 #include <sys/types.h>
51
52 #define EL_BUFSIZ       1024            /* Maximum line size            */
53
54 #define HANDLE_SIGNALS  0x01
55 #define NO_TTY          0x02
56 #define EDIT_DISABLED   0x04
57 #define UNBUFFERED      0x08
58
59 typedef int bool_t;                     /* True or not                  */
60
61 typedef unsigned char el_action_t;      /* Index to command array       */
62
63 typedef struct coord_t {                /* Position on the screen       */
64         int     h;
65         int     v;
66 } coord_t;
67
68 typedef struct el_line_t {
69         char    *buffer;                /* Input line                   */
70         char    *cursor;                /* Cursor position              */
71         char    *lastchar;              /* Last character               */
72         const char      *limit;         /* Max position                 */
73 } el_line_t;
74
75 /*
76  * Editor state
77  */
78 typedef struct el_state_t {
79         int             inputmode;      /* What mode are we in?         */
80         int             doingarg;       /* Are we getting an argument?  */
81         int             argument;       /* Numeric argument             */
82         int             metanext;       /* Is the next char a meta char */
83         el_action_t     lastcmd;        /* Previous command             */
84         el_action_t     thiscmd;        /* this command                 */
85         char            thisch;         /* char that generated it       */
86 } el_state_t;
87
88 /*
89  * Until we come up with something better...
90  */
91 #define el_strdup(a)    strdup(a)
92 #define el_malloc(a)    malloc(a)
93 #define el_realloc(a,b) realloc(a, b)
94 #define el_free(a)      free(a)
95
96 #include "tty.h"
97 #include "prompt.h"
98 #include "key.h"
99 #include "term.h"
100 #include "refresh.h"
101 #include "chared.h"
102 #include "common.h"
103 #include "search.h"
104 #include "hist.h"
105 #include "map.h"
106 #include "parse.h"
107 #include "sig.h"
108 #include "help.h"
109 #include "read.h"
110
111 struct editline {
112         char             *el_prog;      /* the program name             */
113         FILE             *el_infile;    /* Stdio stuff                  */
114         FILE             *el_outfile;   /* Stdio stuff                  */
115         FILE             *el_errfile;   /* Stdio stuff                  */
116         int               el_infd;      /* Input file descriptor        */
117         int               el_flags;     /* Various flags.               */
118         coord_t           el_cursor;    /* Cursor location              */
119         char            **el_display;   /* Real screen image = what is there */
120         char            **el_vdisplay;  /* Virtual screen image = what we see */
121         void             *el_data;      /* Client data                  */
122         el_line_t         el_line;      /* The current line information */
123         el_state_t        el_state;     /* Current editor state         */
124         el_term_t         el_term;      /* Terminal dependent stuff     */
125         el_tty_t          el_tty;       /* Tty dependent stuff          */
126         el_refresh_t      el_refresh;   /* Refresh stuff                */
127         el_prompt_t       el_prompt;    /* Prompt stuff                 */
128         el_prompt_t       el_rprompt;   /* Prompt stuff                 */
129         el_chared_t       el_chared;    /* Characted editor stuff       */
130         el_map_t          el_map;       /* Key mapping stuff            */
131         el_key_t          el_key;       /* Key binding stuff            */
132         el_history_t      el_history;   /* History stuff                */
133         el_search_t       el_search;    /* Search stuff                 */
134         el_signal_t       el_signal;    /* Signal handling stuff        */
135         el_read_t         el_read;      /* Character reading stuff      */
136 };
137
138 protected int   el_editmode(EditLine *, int, const char **);
139
140 #ifdef DEBUG
141 #define EL_ABORT(a)     do { \
142                                 fprintf(el->el_errfile, "%s, %d: ", \
143                                          __FILE__, __LINE__); \
144                                 fprintf a; \
145                                 abort(); \
146                         } while( /*CONSTCOND*/0);
147 #else
148 #define EL_ABORT(a)     abort()
149 #endif
150 #endif /* _h_el */