39f224af48
The posix 'sh' specification defines vi-mode editing quite tightly. The netbsd libedit code (used by sh to do this) was missing several features, there were also minor errors in others. Compare netbsd sh to the definition available from: http://www.opengroup.org/onlinepubs/007904975/utilities/sh.html In particular the following were not supported: U - undo all changes to line | - goto column Y - yank to end of line y - yank # - comment out current line @ - take input from shell alias [1] G - goto numbered line in history buffer v - edit history line with vi _ - append word from last input line . - redo last command Other minor changes have also been made. [1] This needs the shell to define an appropriate routine to return the text of the alias. There is no requirement that such a function exist.
152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/* $NetBSD: el.h,v 1.13 2002/11/15 14:32:33 christos Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Christos Zoulas of Cornell University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)el.h 8.1 (Berkeley) 6/4/93
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*/
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/*
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* el.h: Internal structures.
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*/
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#ifndef _h_el
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#define _h_el
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/*
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* Local defaults
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*/
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#define KSHVI
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#define VIDEFAULT
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#define ANCHOR
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#include <stdio.h>
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#include <sys/types.h>
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#define EL_BUFSIZ 1024 /* Maximum line size */
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#define HANDLE_SIGNALS 1<<0
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#define NO_TTY 1<<1
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#define EDIT_DISABLED 1<<2
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typedef int bool_t; /* True or not */
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typedef unsigned char el_action_t; /* Index to command array */
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typedef struct coord_t { /* Position on the screen */
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int h;
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int v;
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} coord_t;
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typedef struct el_line_t {
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char *buffer; /* Input line */
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char *cursor; /* Cursor position */
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char *lastchar; /* Last character */
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const char *limit; /* Max position */
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} el_line_t;
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/*
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* Editor state
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*/
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typedef struct el_state_t {
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int inputmode; /* What mode are we in? */
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int doingarg; /* Are we getting an argument? */
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int argument; /* Numeric argument */
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int metanext; /* Is the next char a meta char */
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el_action_t lastcmd; /* Previous command */
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el_action_t thiscmd; /* this command */
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char thisch; /* char that generated it */
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} el_state_t;
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/*
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* Until we come up with something better...
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*/
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#define el_malloc(a) malloc(a)
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#define el_realloc(a,b) realloc(a, b)
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#define el_free(a) free(a)
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#include "tty.h"
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#include "prompt.h"
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#include "key.h"
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#include "term.h"
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#include "refresh.h"
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#include "chared.h"
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#include "common.h"
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#include "search.h"
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#include "hist.h"
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#include "map.h"
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#include "parse.h"
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#include "sig.h"
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#include "help.h"
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#include "read.h"
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struct editline {
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char *el_prog; /* the program name */
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FILE *el_outfile; /* Stdio stuff */
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FILE *el_errfile; /* Stdio stuff */
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int el_infd; /* Input file descriptor */
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int el_flags; /* Various flags. */
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coord_t el_cursor; /* Cursor location */
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char **el_display; /* Real screen image = what is there */
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char **el_vdisplay; /* Virtual screen image = what we see */
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void *el_data; /* Client data */
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el_line_t el_line; /* The current line information */
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el_state_t el_state; /* Current editor state */
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el_term_t el_term; /* Terminal dependent stuff */
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el_tty_t el_tty; /* Tty dependent stuff */
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el_refresh_t el_refresh; /* Refresh stuff */
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el_prompt_t el_prompt; /* Prompt stuff */
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el_prompt_t el_rprompt; /* Prompt stuff */
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el_chared_t el_chared; /* Characted editor stuff */
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el_map_t el_map; /* Key mapping stuff */
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el_key_t el_key; /* Key binding stuff */
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el_history_t el_history; /* History stuff */
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el_search_t el_search; /* Search stuff */
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el_signal_t el_signal; /* Signal handling stuff */
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el_read_t el_read; /* Character reading stuff */
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};
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protected int el_editmode(EditLine *, int, const char **);
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#ifdef DEBUG
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#define EL_ABORT(a) do { \
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fprintf(el->el_errfile, "%s, %d: ", \
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__FILE__, __LINE__); \
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fprintf a; \
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abort(); \
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} while( /*CONSTCOND*/0);
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#else
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#define EL_ABORT(a) abort()
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#endif
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#endif /* _h_el */
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