c4fff9dd3a
bin/sh has been taught about el_gets setting the count to -1 on error, so now we can partially revert r238173 to reduce differences with NetBSD's implementation. Unfortunately NetBSD's libedit handling of EINTR (Revision 1.44 in read.c + SIGWINCH fixes) still causes trouble in bin/sh and other utilities and has to be avoided. MFC after: 1 month
152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/*-
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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. 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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* $NetBSD: el.h,v 1.17 2006/12/15 22:13:33 christos Exp $
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* $FreeBSD$
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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 0x01
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#define NO_TTY 0x02
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#define EDIT_DISABLED 0x04
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#define UNBUFFERED 0x08
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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_strdup(a) strdup(a)
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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_infile; /* Stdio stuff */
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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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int el_errno; /* Local copy of errno */
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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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