9092259f68
Differences with NetBSD Reapply our local patches on top of it Fix Unicode environement detection Fix reading a line in unicode environment. It allows /bin/sh to works in UTF-8 envs Differential Revision: https://reviews.freebsd.org/D1455 Reviewed by: jilles, pfg Obtained from: NetBSD [1] MFC after: 1 month Relnotes: yes
922 lines
19 KiB
C
922 lines
19 KiB
C
/* $NetBSD: common.c,v 1.29 2012/03/24 20:08:43 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. 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 1.29 2012/03/24 20:08:43 christos Exp $");
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#endif
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#endif /* not lint && not SCCSID */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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 __attribute__((__unused__)))
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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 __attribute__((__unused__)))
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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, (int)(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 __attribute__((__unused__)))
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{
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#ifdef DEBUG_EDIT
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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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/* then do an EOF */
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terminal_writec(el, c);
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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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return CC_ERROR;
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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_map.type == MAP_VI &&
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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 __attribute__((__unused__)))
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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 __attribute__((__unused__)))
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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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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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#ifdef VI_MOVE
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el->el_line.cursor--;
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#endif
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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 __attribute__((__unused__)))
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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(*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 __attribute__((__unused__)))
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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 __attribute__((__unused__)))
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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 __attribute__((__unused__)))
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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 = FUN(el,getc)(el, &tc);
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c = 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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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 __attribute__((__unused__)),
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Int c __attribute__((__unused__)))
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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
|
|
/*ARGSUSED*/
|
|
ed_newline(EditLine *el, Int c __attribute__((__unused__)))
|
|
{
|
|
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
|
|
terminal_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 __attribute__((__unused__)),
|
|
Int c __attribute__((__unused__)))
|
|
{
|
|
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
|
|
ch_reset(el, 0);
|
|
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 __attribute__((__unused__)),
|
|
Int c __attribute__((__unused__)))
|
|
{
|
|
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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;
|
|
|
|
}
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
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 __attribute__((__unused__)))
|
|
{
|
|
Char tmpbuf[EL_BUFSIZ];
|
|
int tmplen;
|
|
|
|
tmplen = c_gets(el, tmpbuf, STR("\n: "));
|
|
terminal__putc(el, '\n');
|
|
|
|
if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
|
|
terminal_beep(el);
|
|
|
|
el->el_map.current = el->el_map.key;
|
|
re_clear_display(el);
|
|
return CC_REFRESH;
|
|
}
|