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el.h revision 1.11 
      1 /*	$NetBSD: el.h,v 1.11 2002/03/18 16:00:52 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. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)el.h	8.1 (Berkeley) 6/4/93
     39  */
     40 
     41 /*
     42  * el.h: Internal structures.
     43  */
     44 #ifndef _h_el
     45 #define	_h_el
     46 /*
     47  * Local defaults
     48  */
     49 #define	KSHVI
     50 #define	VIDEFAULT
     51 #define	ANCHOR
     52 
     53 #include <stdio.h>
     54 #include <sys/types.h>
     55 
     56 #define	EL_BUFSIZ	1024		/* Maximum line size		*/
     57 
     58 #define	HANDLE_SIGNALS	1<<0
     59 #define	NO_TTY		1<<1
     60 #define	EDIT_DISABLED	1<<2
     61 
     62 typedef int bool_t;			/* True or not			*/
     63 
     64 typedef unsigned char el_action_t;	/* Index to command array	*/
     65 
     66 typedef struct coord_t {		/* Position on the screen	*/
     67 	int	h;
     68 	int	v;
     69 } coord_t;
     70 
     71 typedef struct el_line_t {
     72 	char	*buffer;		/* Input line			*/
     73 	char	*cursor;		/* Cursor position		*/
     74 	char	*lastchar;		/* Last character		*/
     75 	const char	*limit;			/* Max position			*/
     76 } el_line_t;
     77 
     78 /*
     79  * Editor state
     80  */
     81 typedef struct el_state_t {
     82 	int		inputmode;	/* What mode are we in?		*/
     83 	int		doingarg;	/* Are we getting an argument?	*/
     84 	int		argument;	/* Numeric argument		*/
     85 	int		metanext;	/* Is the next char a meta char */
     86 	el_action_t	lastcmd;	/* Previous command		*/
     87 } el_state_t;
     88 
     89 /*
     90  * Until we come up with something better...
     91  */
     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_outfile;	/* Stdio stuff			*/
    114 	FILE		 *el_errfile;	/* Stdio stuff			*/
    115 	int		  el_infd;	/* Input file descriptor	*/
    116 	int		  el_flags;	/* Various flags.		*/
    117 	coord_t		  el_cursor;	/* Cursor location		*/
    118 	char		**el_display;	/* Real screen image = what is there */
    119 	char		**el_vdisplay;	/* Virtual screen image = what we see */
    120 	void		 *el_data;	/* Client data			*/
    121 	el_line_t	  el_line;	/* The current line information	*/
    122 	el_state_t	  el_state;	/* Current editor state		*/
    123 	el_term_t	  el_term;	/* Terminal dependent stuff	*/
    124 	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
    125 	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
    126 	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
    127 	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
    128 	el_chared_t	  el_chared;	/* Characted editor stuff	*/
    129 	el_map_t	  el_map;	/* Key mapping stuff		*/
    130 	el_key_t	  el_key;	/* Key binding stuff		*/
    131 	el_history_t	  el_history;	/* History stuff		*/
    132 	el_search_t	  el_search;	/* Search stuff			*/
    133 	el_signal_t	  el_signal;	/* Signal handling stuff	*/
    134 	el_read_t	  el_read;	/* Character reading stuff	*/
    135 };
    136 
    137 protected int	el_editmode(EditLine *, int, const char **);
    138 
    139 #ifdef DEBUG
    140 #define EL_ABORT(a)	(void) (fprintf(el->el_errfile, "%s, %d: ", \
    141 				__FILE__, __LINE__), fprintf a, abort())
    142 #else
    143 #define EL_ABORT(a)	abort()
    144 #endif
    145 #endif /* _h_el */
    146