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      1 /*	$NetBSD: chared.h,v 1.30 2016/05/22 19:44:26 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  *	@(#)chared.h	8.1 (Berkeley) 6/4/93
     35  */
     36 
     37 /*
     38  * el.chared.h: Character editor interface
     39  */
     40 #ifndef _h_el_chared
     41 #define	_h_el_chared
     42 
     43 /*
     44  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
     45  * like real vi: i.e. the transition from command<->insert modes moves
     46  * the cursor.
     47  *
     48  * On the other hand we really don't want to move the cursor, because
     49  * all the editing commands don't include the character under the cursor.
     50  * Probably the best fix is to make all the editing commands aware of
     51  * this fact.
     52  */
     53 #define	VI_MOVE
     54 
     55 /*
     56  * Undo information for vi - no undo in emacs (yet)
     57  */
     58 typedef struct c_undo_t {
     59 	ssize_t	 len;			/* length of saved line */
     60 	int	 cursor;		/* position of saved cursor */
     61 	wchar_t	*buf;			/* full saved text */
     62 } c_undo_t;
     63 
     64 /* redo for vi */
     65 typedef struct c_redo_t {
     66 	wchar_t	*buf;			/* redo insert key sequence */
     67 	wchar_t	*pos;
     68 	wchar_t	*lim;
     69 	el_action_t	cmd;		/* command to redo */
     70 	wchar_t	ch;			/* char that invoked it */
     71 	int	count;
     72 	int	action;			/* from cv_action() */
     73 } c_redo_t;
     74 
     75 /*
     76  * Current action information for vi
     77  */
     78 typedef struct c_vcmd_t {
     79 	int	 action;
     80 	wchar_t	*pos;
     81 } c_vcmd_t;
     82 
     83 /*
     84  * Kill buffer for emacs
     85  */
     86 typedef struct c_kill_t {
     87 	wchar_t	*buf;
     88 	wchar_t	*last;
     89 	wchar_t	*mark;
     90 } c_kill_t;
     91 
     92 typedef void (*el_zfunc_t)(EditLine *, void *);
     93 typedef const char *(*el_afunc_t)(void *, const char *);
     94 
     95 /*
     96  * Note that we use both data structures because the user can bind
     97  * commands from both editors!
     98  */
     99 typedef struct el_chared_t {
    100 	c_undo_t	c_undo;
    101 	c_kill_t	c_kill;
    102 	c_redo_t	c_redo;
    103 	c_vcmd_t	c_vcmd;
    104 	el_zfunc_t	c_resizefun;
    105 	el_afunc_t	c_aliasfun;
    106 	void *		c_resizearg;
    107 	void *		c_aliasarg;
    108 } el_chared_t;
    109 
    110 
    111 #define	STRQQ		"\"\""
    112 
    113 #define	isglob(a)	(strchr("*[]?", (a)) != NULL)
    114 
    115 #define	NOP		0x00
    116 #define	DELETE		0x01
    117 #define	INSERT		0x02
    118 #define	YANK		0x04
    119 
    120 #define	CHAR_FWD	(+1)
    121 #define	CHAR_BACK	(-1)
    122 
    123 #define	MODE_INSERT	0
    124 #define	MODE_REPLACE	1
    125 #define	MODE_REPLACE_1	2
    126 
    127 
    128 libedit_private int	 cv__isword(wint_t);
    129 libedit_private int	 cv__isWord(wint_t);
    130 libedit_private void	 cv_delfini(EditLine *);
    131 libedit_private wchar_t *cv__endword(wchar_t *, wchar_t *, int, int (*)(wint_t));
    132 libedit_private int	 ce__isword(wint_t);
    133 libedit_private void	 cv_undo(EditLine *);
    134 libedit_private void	 cv_yank(EditLine *, const wchar_t *, int);
    135 libedit_private wchar_t *cv_next_word(EditLine*, wchar_t *, wchar_t *, int,
    136 			int (*)(wint_t));
    137 libedit_private wchar_t *cv_prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
    138 libedit_private wchar_t *c__next_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
    139 libedit_private wchar_t *c__prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
    140 libedit_private void	 c_insert(EditLine *, int);
    141 libedit_private void	 c_delbefore(EditLine *, int);
    142 libedit_private void	 c_delbefore1(EditLine *);
    143 libedit_private void	 c_delafter(EditLine *, int);
    144 libedit_private void	 c_delafter1(EditLine *);
    145 libedit_private int	 c_gets(EditLine *, wchar_t *, const wchar_t *);
    146 libedit_private int	 c_hpos(EditLine *);
    147 
    148 libedit_private int	 ch_init(EditLine *);
    149 libedit_private void	 ch_reset(EditLine *);
    150 libedit_private int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
    151 libedit_private int	 ch_aliasfun(EditLine *, el_afunc_t, void *);
    152 libedit_private int	 ch_enlargebufs(EditLine *, size_t);
    153 libedit_private void	 ch_end(EditLine *);
    154 
    155 #endif /* _h_el_chared */
    156