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.
930 lines
19 KiB
C
930 lines
19 KiB
C
/* $NetBSD: common.c,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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#include "config.h"
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#if !defined(lint) && !defined(SCCSID)
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#if 0
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static char sccsid[] = "@(#)common.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: common.c,v 1.13 2002/11/15 14:32:33 christos Exp $");
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#endif
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#endif /* not lint && not SCCSID */
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/*
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* common.c: Common Editor functions
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*/
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#include "el.h"
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/* ed_end_of_file():
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* Indicate end of file
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* [^D]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_end_of_file(EditLine *el, int c)
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{
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re_goto_bottom(el);
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*el->el_line.lastchar = '\0';
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return (CC_EOF);
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}
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/* ed_insert():
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* Add character to the line
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* Insert a character [bound to all insert keys]
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*/
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protected el_action_t
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ed_insert(EditLine *el, int c)
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{
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int count = el->el_state.argument;
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if (c == '\0')
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return (CC_ERROR);
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if (el->el_line.lastchar + el->el_state.argument >=
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el->el_line.limit) {
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/* end of buffer space, try to allocate more */
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if (!ch_enlargebufs(el, (size_t) count))
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return CC_ERROR; /* error allocating more */
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}
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if (count == 1) {
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if (el->el_state.inputmode == MODE_INSERT
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|| el->el_line.cursor >= el->el_line.lastchar)
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c_insert(el, 1);
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*el->el_line.cursor++ = c;
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re_fastaddc(el); /* fast refresh for one char. */
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} else {
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if (el->el_state.inputmode != MODE_REPLACE_1)
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c_insert(el, el->el_state.argument);
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while (count-- && el->el_line.cursor < el->el_line.lastchar)
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*el->el_line.cursor++ = c;
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re_refresh(el);
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}
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if (el->el_state.inputmode == MODE_REPLACE_1)
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return vi_command_mode(el, 0);
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return (CC_NORM);
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}
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/* ed_delete_prev_word():
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* Delete from beginning of current word to cursor
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* [M-^?] [^W]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_delete_prev_word(EditLine *el, int c)
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{
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char *cp, *p, *kp;
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if (el->el_line.cursor == el->el_line.buffer)
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return (CC_ERROR);
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cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
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el->el_state.argument, ce__isword);
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for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
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*kp++ = *p;
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el->el_chared.c_kill.last = kp;
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c_delbefore(el, el->el_line.cursor - cp); /* delete before dot */
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el->el_line.cursor = cp;
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if (el->el_line.cursor < el->el_line.buffer)
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el->el_line.cursor = el->el_line.buffer; /* bounds check */
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return (CC_REFRESH);
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}
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/* ed_delete_next_char():
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* Delete character under cursor
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* [^D] [x]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_delete_next_char(EditLine *el, int c)
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{
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#ifdef notdef /* XXX */
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#define EL el->el_line
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(void) fprintf(el->el_errlfile,
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"\nD(b: %x(%s) c: %x(%s) last: %x(%s) limit: %x(%s)\n",
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EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
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EL.lastchar, EL.limit, EL.limit);
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#endif
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if (el->el_line.cursor == el->el_line.lastchar) {
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/* if I'm at the end */
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if (el->el_map.type == MAP_VI) {
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if (el->el_line.cursor == el->el_line.buffer) {
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/* if I'm also at the beginning */
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#ifdef KSHVI
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return (CC_ERROR);
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#else
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term_overwrite(el, STReof, 4);
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/* then do a EOF */
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term__flush();
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return (CC_EOF);
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#endif
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} else {
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#ifdef KSHVI
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el->el_line.cursor--;
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#else
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return (CC_ERROR);
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#endif
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}
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} else {
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if (el->el_line.cursor != el->el_line.buffer)
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el->el_line.cursor--;
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else
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return (CC_ERROR);
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}
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}
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c_delafter(el, el->el_state.argument); /* delete after dot */
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if (el->el_line.cursor >= el->el_line.lastchar &&
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el->el_line.cursor > el->el_line.buffer)
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/* bounds check */
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el->el_line.cursor = el->el_line.lastchar - 1;
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return (CC_REFRESH);
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}
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/* ed_kill_line():
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* Cut to the end of line
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* [^K] [^K]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_kill_line(EditLine *el, int c)
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{
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char *kp, *cp;
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cp = el->el_line.cursor;
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kp = el->el_chared.c_kill.buf;
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while (cp < el->el_line.lastchar)
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*kp++ = *cp++; /* copy it */
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el->el_chared.c_kill.last = kp;
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/* zap! -- delete to end */
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el->el_line.lastchar = el->el_line.cursor;
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return (CC_REFRESH);
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}
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/* ed_move_to_end():
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* Move cursor to the end of line
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* [^E] [^E]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_move_to_end(EditLine *el, int c)
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{
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el->el_line.cursor = el->el_line.lastchar;
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if (el->el_map.type == MAP_VI) {
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#ifdef VI_MOVE
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el->el_line.cursor--;
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#endif
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if (el->el_chared.c_vcmd.action != NOP) {
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cv_delfini(el);
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return (CC_REFRESH);
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}
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}
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return (CC_CURSOR);
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}
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/* ed_move_to_beg():
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* Move cursor to the beginning of line
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* [^A] [^A]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_move_to_beg(EditLine *el, int c)
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{
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el->el_line.cursor = el->el_line.buffer;
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if (el->el_map.type == MAP_VI) {
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/* We want FIRST non space character */
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while (isspace((unsigned char) *el->el_line.cursor))
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el->el_line.cursor++;
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if (el->el_chared.c_vcmd.action != NOP) {
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cv_delfini(el);
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return (CC_REFRESH);
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}
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}
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return (CC_CURSOR);
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}
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/* ed_transpose_chars():
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* Exchange the character to the left of the cursor with the one under it
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* [^T] [^T]
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*/
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protected el_action_t
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ed_transpose_chars(EditLine *el, int c)
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{
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if (el->el_line.cursor < el->el_line.lastchar) {
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if (el->el_line.lastchar <= &el->el_line.buffer[1])
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return (CC_ERROR);
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else
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el->el_line.cursor++;
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}
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if (el->el_line.cursor > &el->el_line.buffer[1]) {
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/* must have at least two chars entered */
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c = el->el_line.cursor[-2];
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el->el_line.cursor[-2] = el->el_line.cursor[-1];
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el->el_line.cursor[-1] = c;
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return (CC_REFRESH);
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} else
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return (CC_ERROR);
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}
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/* ed_next_char():
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* Move to the right one character
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* [^F] [^F]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_next_char(EditLine *el, int c)
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{
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char *lim = el->el_line.lastchar;
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if (el->el_line.cursor >= lim ||
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(el->el_line.cursor == lim - 1 &&
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el->el_map.type == MAP_VI &&
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el->el_chared.c_vcmd.action == NOP))
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return (CC_ERROR);
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el->el_line.cursor += el->el_state.argument;
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if (el->el_line.cursor > lim)
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el->el_line.cursor = lim;
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if (el->el_map.type == MAP_VI)
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if (el->el_chared.c_vcmd.action != NOP) {
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cv_delfini(el);
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return (CC_REFRESH);
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}
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return (CC_CURSOR);
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}
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/* ed_prev_word():
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* Move to the beginning of the current word
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* [M-b] [b]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_prev_word(EditLine *el, int c)
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{
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if (el->el_line.cursor == el->el_line.buffer)
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return (CC_ERROR);
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el->el_line.cursor = c__prev_word(el->el_line.cursor,
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el->el_line.buffer,
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el->el_state.argument,
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ce__isword);
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if (el->el_map.type == MAP_VI)
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if (el->el_chared.c_vcmd.action != NOP) {
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cv_delfini(el);
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return (CC_REFRESH);
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}
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return (CC_CURSOR);
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}
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/* ed_prev_char():
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* Move to the left one character
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* [^B] [^B]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_prev_char(EditLine *el, int c)
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{
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if (el->el_line.cursor > el->el_line.buffer) {
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el->el_line.cursor -= el->el_state.argument;
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if (el->el_line.cursor < el->el_line.buffer)
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el->el_line.cursor = el->el_line.buffer;
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if (el->el_map.type == MAP_VI)
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if (el->el_chared.c_vcmd.action != NOP) {
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cv_delfini(el);
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return (CC_REFRESH);
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}
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return (CC_CURSOR);
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} else
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return (CC_ERROR);
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}
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/* ed_quoted_insert():
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* Add the next character typed verbatim
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* [^V] [^V]
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*/
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protected el_action_t
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ed_quoted_insert(EditLine *el, int c)
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{
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int num;
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char tc;
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tty_quotemode(el);
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num = el_getc(el, &tc);
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c = (unsigned char) tc;
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tty_noquotemode(el);
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if (num == 1)
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return (ed_insert(el, c));
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else
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return (ed_end_of_file(el, 0));
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}
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/* ed_digit():
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* Adds to argument or enters a digit
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*/
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protected el_action_t
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ed_digit(EditLine *el, int c)
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{
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if (!isdigit(c))
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return (CC_ERROR);
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if (el->el_state.doingarg) {
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/* if doing an arg, add this in... */
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if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
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el->el_state.argument = c - '0';
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else {
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if (el->el_state.argument > 1000000)
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return (CC_ERROR);
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el->el_state.argument =
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(el->el_state.argument * 10) + (c - '0');
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}
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return (CC_ARGHACK);
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}
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return ed_insert(el, c);
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}
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/* ed_argument_digit():
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* Digit that starts argument
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* For ESC-n
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*/
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protected el_action_t
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ed_argument_digit(EditLine *el, int c)
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{
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if (!isdigit(c))
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return (CC_ERROR);
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if (el->el_state.doingarg) {
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if (el->el_state.argument > 1000000)
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return (CC_ERROR);
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el->el_state.argument = (el->el_state.argument * 10) +
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(c - '0');
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} else { /* else starting an argument */
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el->el_state.argument = c - '0';
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el->el_state.doingarg = 1;
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}
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return (CC_ARGHACK);
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}
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/* ed_unassigned():
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* Indicates unbound character
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* Bound to keys that are not assigned
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_unassigned(EditLine *el, int c)
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{
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return (CC_ERROR);
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}
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/**
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** TTY key handling.
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**/
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/* ed_tty_sigint():
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* Tty interrupt character
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* [^C]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_sigint(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_dsusp():
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* Tty delayed suspend character
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* [^Y]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_dsusp(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_flush_output():
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* Tty flush output characters
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* [^O]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_flush_output(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_sigquit():
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* Tty quit character
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* [^\]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_sigquit(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_sigtstp():
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* Tty suspend character
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* [^Z]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_sigtstp(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_stop_output():
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* Tty disallow output characters
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* [^S]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_stop_output(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_tty_start_output():
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* Tty allow output characters
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* [^Q]
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*/
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protected el_action_t
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/*ARGSUSED*/
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ed_tty_start_output(EditLine *el, int c)
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{
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return (CC_NORM);
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}
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/* ed_newline():
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* Execute command
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* [^J]
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*/
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protected el_action_t
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/*ARGSUSED*/
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|
ed_newline(EditLine *el, int c)
|
|
{
|
|
|
|
re_goto_bottom(el);
|
|
*el->el_line.lastchar++ = '\n';
|
|
*el->el_line.lastchar = '\0';
|
|
return (CC_NEWLINE);
|
|
}
|
|
|
|
|
|
/* ed_delete_prev_char():
|
|
* Delete the character to the left of the cursor
|
|
* [^?]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_delete_prev_char(EditLine *el, int c)
|
|
{
|
|
|
|
if (el->el_line.cursor <= el->el_line.buffer)
|
|
return (CC_ERROR);
|
|
|
|
c_delbefore(el, el->el_state.argument);
|
|
el->el_line.cursor -= el->el_state.argument;
|
|
if (el->el_line.cursor < el->el_line.buffer)
|
|
el->el_line.cursor = el->el_line.buffer;
|
|
return (CC_REFRESH);
|
|
}
|
|
|
|
|
|
/* ed_clear_screen():
|
|
* Clear screen leaving current line at the top
|
|
* [^L]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_clear_screen(EditLine *el, int c)
|
|
{
|
|
|
|
term_clear_screen(el); /* clear the whole real screen */
|
|
re_clear_display(el); /* reset everything */
|
|
return (CC_REFRESH);
|
|
}
|
|
|
|
|
|
/* ed_redisplay():
|
|
* Redisplay everything
|
|
* ^R
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_redisplay(EditLine *el, int c)
|
|
{
|
|
|
|
return (CC_REDISPLAY);
|
|
}
|
|
|
|
|
|
/* ed_start_over():
|
|
* Erase current line and start from scratch
|
|
* [^G]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_start_over(EditLine *el, int c)
|
|
{
|
|
|
|
ch_reset(el);
|
|
return (CC_REFRESH);
|
|
}
|
|
|
|
|
|
/* ed_sequence_lead_in():
|
|
* First character in a bound sequence
|
|
* Placeholder for external keys
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_sequence_lead_in(EditLine *el, int c)
|
|
{
|
|
|
|
return (CC_NORM);
|
|
}
|
|
|
|
|
|
/* ed_prev_history():
|
|
* Move to the previous history line
|
|
* [^P] [k]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_prev_history(EditLine *el, int c)
|
|
{
|
|
char beep = 0;
|
|
int sv_event = el->el_history.eventno;
|
|
|
|
el->el_chared.c_undo.len = -1;
|
|
*el->el_line.lastchar = '\0'; /* just in case */
|
|
|
|
if (el->el_history.eventno == 0) { /* save the current buffer
|
|
* away */
|
|
(void) strncpy(el->el_history.buf, el->el_line.buffer,
|
|
EL_BUFSIZ);
|
|
el->el_history.last = el->el_history.buf +
|
|
(el->el_line.lastchar - el->el_line.buffer);
|
|
}
|
|
el->el_history.eventno += el->el_state.argument;
|
|
|
|
if (hist_get(el) == CC_ERROR) {
|
|
if (el->el_map.type == MAP_VI) {
|
|
el->el_history.eventno = sv_event;
|
|
return CC_ERROR;
|
|
}
|
|
beep = 1;
|
|
/* el->el_history.eventno was fixed by first call */
|
|
(void) hist_get(el);
|
|
}
|
|
if (beep)
|
|
return CC_REFRESH_BEEP;
|
|
return CC_REFRESH;
|
|
}
|
|
|
|
|
|
/* ed_next_history():
|
|
* Move to the next history line
|
|
* [^N] [j]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_next_history(EditLine *el, int c)
|
|
{
|
|
el_action_t beep = CC_REFRESH, rval;
|
|
|
|
el->el_chared.c_undo.len = -1;
|
|
*el->el_line.lastchar = '\0'; /* just in case */
|
|
|
|
el->el_history.eventno -= el->el_state.argument;
|
|
|
|
if (el->el_history.eventno < 0) {
|
|
el->el_history.eventno = 0;
|
|
beep = CC_REFRESH_BEEP;
|
|
}
|
|
rval = hist_get(el);
|
|
if (rval == CC_REFRESH)
|
|
return beep;
|
|
return rval;
|
|
|
|
}
|
|
|
|
|
|
/* ed_search_prev_history():
|
|
* Search previous in history for a line matching the current
|
|
* next search history [M-P] [K]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_search_prev_history(EditLine *el, int c)
|
|
{
|
|
const char *hp;
|
|
int h;
|
|
bool_t found = 0;
|
|
|
|
el->el_chared.c_vcmd.action = NOP;
|
|
el->el_chared.c_undo.len = -1;
|
|
*el->el_line.lastchar = '\0'; /* just in case */
|
|
if (el->el_history.eventno < 0) {
|
|
#ifdef DEBUG_EDIT
|
|
(void) fprintf(el->el_errfile,
|
|
"e_prev_search_hist(): eventno < 0;\n");
|
|
#endif
|
|
el->el_history.eventno = 0;
|
|
return (CC_ERROR);
|
|
}
|
|
if (el->el_history.eventno == 0) {
|
|
(void) strncpy(el->el_history.buf, el->el_line.buffer,
|
|
EL_BUFSIZ);
|
|
el->el_history.last = el->el_history.buf +
|
|
(el->el_line.lastchar - el->el_line.buffer);
|
|
}
|
|
if (el->el_history.ref == NULL)
|
|
return (CC_ERROR);
|
|
|
|
hp = HIST_FIRST(el);
|
|
if (hp == NULL)
|
|
return (CC_ERROR);
|
|
|
|
c_setpat(el); /* Set search pattern !! */
|
|
|
|
for (h = 1; h <= el->el_history.eventno; h++)
|
|
hp = HIST_NEXT(el);
|
|
|
|
while (hp != NULL) {
|
|
#ifdef SDEBUG
|
|
(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
|
|
#endif
|
|
if ((strncmp(hp, el->el_line.buffer, (size_t)
|
|
(el->el_line.lastchar - el->el_line.buffer)) ||
|
|
hp[el->el_line.lastchar - el->el_line.buffer]) &&
|
|
c_hmatch(el, hp)) {
|
|
found++;
|
|
break;
|
|
}
|
|
h++;
|
|
hp = HIST_NEXT(el);
|
|
}
|
|
|
|
if (!found) {
|
|
#ifdef SDEBUG
|
|
(void) fprintf(el->el_errfile, "not found\n");
|
|
#endif
|
|
return (CC_ERROR);
|
|
}
|
|
el->el_history.eventno = h;
|
|
|
|
return (hist_get(el));
|
|
}
|
|
|
|
|
|
/* ed_search_next_history():
|
|
* Search next in history for a line matching the current
|
|
* [M-N] [J]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_search_next_history(EditLine *el, int c)
|
|
{
|
|
const char *hp;
|
|
int h;
|
|
bool_t found = 0;
|
|
|
|
el->el_chared.c_vcmd.action = NOP;
|
|
el->el_chared.c_undo.len = -1;
|
|
*el->el_line.lastchar = '\0'; /* just in case */
|
|
|
|
if (el->el_history.eventno == 0)
|
|
return (CC_ERROR);
|
|
|
|
if (el->el_history.ref == NULL)
|
|
return (CC_ERROR);
|
|
|
|
hp = HIST_FIRST(el);
|
|
if (hp == NULL)
|
|
return (CC_ERROR);
|
|
|
|
c_setpat(el); /* Set search pattern !! */
|
|
|
|
for (h = 1; h < el->el_history.eventno && hp; h++) {
|
|
#ifdef SDEBUG
|
|
(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
|
|
#endif
|
|
if ((strncmp(hp, el->el_line.buffer, (size_t)
|
|
(el->el_line.lastchar - el->el_line.buffer)) ||
|
|
hp[el->el_line.lastchar - el->el_line.buffer]) &&
|
|
c_hmatch(el, hp))
|
|
found = h;
|
|
hp = HIST_NEXT(el);
|
|
}
|
|
|
|
if (!found) { /* is it the current history number? */
|
|
if (!c_hmatch(el, el->el_history.buf)) {
|
|
#ifdef SDEBUG
|
|
(void) fprintf(el->el_errfile, "not found\n");
|
|
#endif
|
|
return (CC_ERROR);
|
|
}
|
|
}
|
|
el->el_history.eventno = found;
|
|
|
|
return (hist_get(el));
|
|
}
|
|
|
|
|
|
/* ed_prev_line():
|
|
* Move up one line
|
|
* Could be [k] [^p]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_prev_line(EditLine *el, int c)
|
|
{
|
|
char *ptr;
|
|
int nchars = c_hpos(el);
|
|
|
|
/*
|
|
* Move to the line requested
|
|
*/
|
|
if (*(ptr = el->el_line.cursor) == '\n')
|
|
ptr--;
|
|
|
|
for (; ptr >= el->el_line.buffer; ptr--)
|
|
if (*ptr == '\n' && --el->el_state.argument <= 0)
|
|
break;
|
|
|
|
if (el->el_state.argument > 0)
|
|
return (CC_ERROR);
|
|
|
|
/*
|
|
* Move to the beginning of the line
|
|
*/
|
|
for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
|
|
continue;
|
|
|
|
/*
|
|
* Move to the character requested
|
|
*/
|
|
for (ptr++;
|
|
nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
|
|
ptr++)
|
|
continue;
|
|
|
|
el->el_line.cursor = ptr;
|
|
return (CC_CURSOR);
|
|
}
|
|
|
|
|
|
/* ed_next_line():
|
|
* Move down one line
|
|
* Could be [j] [^n]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_next_line(EditLine *el, int c)
|
|
{
|
|
char *ptr;
|
|
int nchars = c_hpos(el);
|
|
|
|
/*
|
|
* Move to the line requested
|
|
*/
|
|
for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
|
|
if (*ptr == '\n' && --el->el_state.argument <= 0)
|
|
break;
|
|
|
|
if (el->el_state.argument > 0)
|
|
return (CC_ERROR);
|
|
|
|
/*
|
|
* Move to the character requested
|
|
*/
|
|
for (ptr++;
|
|
nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
|
|
ptr++)
|
|
continue;
|
|
|
|
el->el_line.cursor = ptr;
|
|
return (CC_CURSOR);
|
|
}
|
|
|
|
|
|
/* ed_command():
|
|
* Editline extended command
|
|
* [M-X] [:]
|
|
*/
|
|
protected el_action_t
|
|
/*ARGSUSED*/
|
|
ed_command(EditLine *el, int c)
|
|
{
|
|
char tmpbuf[EL_BUFSIZ];
|
|
int tmplen;
|
|
|
|
el->el_line.buffer[0] = '\0';
|
|
el->el_line.lastchar = el->el_line.buffer;
|
|
el->el_line.cursor = el->el_line.buffer;
|
|
|
|
c_insert(el, 3); /* prompt + ": " */
|
|
*el->el_line.cursor++ = '\n';
|
|
*el->el_line.cursor++ = ':';
|
|
*el->el_line.cursor++ = ' ';
|
|
re_refresh(el);
|
|
|
|
tmplen = c_gets(el, tmpbuf);
|
|
tmpbuf[tmplen] = '\0';
|
|
|
|
el->el_line.buffer[0] = '\0';
|
|
el->el_line.lastchar = el->el_line.buffer;
|
|
el->el_line.cursor = el->el_line.buffer;
|
|
|
|
if (parse_line(el, tmpbuf) == -1)
|
|
return (CC_ERROR);
|
|
else
|
|
return (CC_REFRESH);
|
|
}
|