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.
81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/* $NetBSD: hist.h,v 1.8 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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* @(#)hist.h 8.1 (Berkeley) 6/4/93
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*/
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/*
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* el.hist.c: History functions
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*/
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#ifndef _h_el_hist
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#define _h_el_hist
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#include "histedit.h"
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typedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...);
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typedef struct el_history_t {
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char *buf; /* The history buffer */
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size_t sz; /* Size of history buffer */
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char *last; /* The last character */
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int eventno; /* Event we are looking for */
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ptr_t ref; /* Argument for history fcns */
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hist_fun_t fun; /* Event access */
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HistEvent ev; /* Event cookie */
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} el_history_t;
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#define HIST_FUN(el, fn, arg) \
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((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
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fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
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#define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL)
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#define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL)
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#define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL)
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#define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL)
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#define HIST_SET(el, num) HIST_FUN(el, H_SET, num)
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#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
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#define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname)
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protected int hist_init(EditLine *);
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protected void hist_end(EditLine *);
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protected el_action_t hist_get(EditLine *);
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protected int hist_set(EditLine *, hist_fun_t, ptr_t);
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protected int hist_list(EditLine *, int, const char **);
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protected int hist_enlargebuf(EditLine *, size_t, size_t);
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#endif /* _h_el_hist */
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