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chared.h revision 1.27
      1 /*	$NetBSD: chared.h,v 1.27 2016/02/16 22:53:14 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 #define	EL_MAXMACRO	10
     44 
     45 /*
     46  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
     47  * like real vi: i.e. the transition from command<->insert modes moves
     48  * the cursor.
     49  *
     50  * On the other hand we really don't want to move the cursor, because
     51  * all the editing commands don't include the character under the cursor.
     52  * Probably the best fix is to make all the editing commands aware of
     53  * this fact.
     54  */
     55 #define	VI_MOVE
     56 
     57 
     58 typedef struct c_macro_t {
     59 	int	  level;
     60 	int	  offset;
     61 	Char	**macro;
     62 } c_macro_t;
     63 
     64 /*
     65  * Undo information for vi - no undo in emacs (yet)
     66  */
     67 typedef struct c_undo_t {
     68 	ssize_t	 len;			/* length of saved line */
     69 	int	 cursor;		/* position of saved cursor */
     70 	Char	*buf;			/* full saved text */
     71 } c_undo_t;
     72 
     73 /* redo for vi */
     74 typedef struct c_redo_t {
     75 	Char	*buf;			/* redo insert key sequence */
     76 	Char	*pos;
     77 	Char	*lim;
     78 	el_action_t	cmd;		/* command to redo */
     79 	Char	ch;			/* char that invoked it */
     80 	int	count;
     81 	int	action;			/* from cv_action() */
     82 } c_redo_t;
     83 
     84 /*
     85  * Current action information for vi
     86  */
     87 typedef struct c_vcmd_t {
     88 	int	 action;
     89 	Char	*pos;
     90 } c_vcmd_t;
     91 
     92 /*
     93  * Kill buffer for emacs
     94  */
     95 typedef struct c_kill_t {
     96 	Char	*buf;
     97 	Char	*last;
     98 	Char	*mark;
     99 } c_kill_t;
    100 
    101 typedef void (*el_zfunc_t)(EditLine *, void *);
    102 typedef const char *(*el_afunc_t)(void *, const char *);
    103 
    104 /*
    105  * Note that we use both data structures because the user can bind
    106  * commands from both editors!
    107  */
    108 typedef struct el_chared_t {
    109 	c_undo_t	c_undo;
    110 	c_kill_t	c_kill;
    111 	c_redo_t	c_redo;
    112 	c_vcmd_t	c_vcmd;
    113 	c_macro_t	c_macro;
    114 	el_zfunc_t	c_resizefun;
    115 	el_afunc_t	c_aliasfun;
    116 	void *		c_resizearg;
    117 	void *		c_aliasarg;
    118 } el_chared_t;
    119 
    120 
    121 #define	STRQQ		"\"\""
    122 
    123 #define	isglob(a)	(strchr("*[]?", (a)) != NULL)
    124 
    125 #define	NOP		0x00
    126 #define	DELETE		0x01
    127 #define	INSERT		0x02
    128 #define	YANK		0x04
    129 
    130 #define	CHAR_FWD	(+1)
    131 #define	CHAR_BACK	(-1)
    132 
    133 #define	MODE_INSERT	0
    134 #define	MODE_REPLACE	1
    135 #define	MODE_REPLACE_1	2
    136 
    137 
    138 protected int	 cv__isword(wint_t);
    139 protected int	 cv__isWord(wint_t);
    140 protected void	 cv_delfini(EditLine *);
    141 protected Char	*cv__endword(Char *, Char *, int, int (*)(wint_t));
    142 protected int	 ce__isword(wint_t);
    143 protected void	 cv_undo(EditLine *);
    144 protected void	 cv_yank(EditLine *, const Char *, int);
    145 protected Char	*cv_next_word(EditLine*, Char *, Char *, int, int (*)(wint_t));
    146 protected Char	*cv_prev_word(Char *, Char *, int, int (*)(wint_t));
    147 protected Char	*c__next_word(Char *, Char *, int, int (*)(wint_t));
    148 protected Char	*c__prev_word(Char *, Char *, int, int (*)(wint_t));
    149 protected void	 c_insert(EditLine *, int);
    150 protected void	 c_delbefore(EditLine *, int);
    151 protected void	 c_delbefore1(EditLine *);
    152 protected void	 c_delafter(EditLine *, int);
    153 protected void	 c_delafter1(EditLine *);
    154 protected int	 c_gets(EditLine *, Char *, const Char *);
    155 protected int	 c_hpos(EditLine *);
    156 
    157 protected int	 ch_init(EditLine *);
    158 protected void	 ch_reset(EditLine *, int);
    159 protected int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
    160 protected int	 ch_aliasfun(EditLine *, el_afunc_t, void *);
    161 protected int	 ch_enlargebufs(EditLine *, size_t);
    162 protected void	 ch_end(EditLine *);
    163 
    164 #endif /* _h_el_chared */
    165