1  /*	$NetBSD: el.h,v 1.22 2011/01/27 23:11:40 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	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 "key.h"
104  #include "el_term.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_term_t	  el_term;	/* 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_key_t	  el_key;	/* 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 */