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6b5d023516
was followed by an ex command that also yanked or deleted some text, a following 'p' vi command pasted the text affected by the former vi command. It now pastes the text of the last yank or delete even if that was an ex command.
978 lines
18 KiB
C
978 lines
18 KiB
C
/*
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* This code contains changes by
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* Gunnar Ritter, Freiburg i. Br., Germany, 2002. All rights reserved.
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*
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* Conditions 1, 2, and 4 and the no-warranty notice below apply
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* to these changes.
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*
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*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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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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*
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* Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
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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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* Redistributions of source code and documentation must retain the
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* above copyright notice, this list of conditions and the following
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* disclaimer.
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* 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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* 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 or owned by Caldera
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* International, Inc.
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* Neither the name of Caldera International, Inc. nor the names of
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* other contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
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* INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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#ifdef DOSCCS
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static char sccsid[] = "@(#)ex_cmds.c 1.18 (gritter) 1/2/05";
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#endif
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#endif
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/* from ex_cmds.c 7.10.1 (2.11BSD) 1996/11/23 */
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#include "ex.h"
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#include "ex_argv.h"
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#include "ex_temp.h"
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#include "ex_tty.h"
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#include "ex_vis.h"
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bool pflag, nflag;
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int poffset;
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#define nochng() lchng = chng
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/*
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* Main loop for command mode command decoding.
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* A few commands are executed here, but main function
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* is to strip command addresses, do a little address oriented
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* processing and call command routines to do the real work.
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*/
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void
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commands(int noprompt, int exitoneof)
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{
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register line *addr;
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register int c;
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register int lchng;
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int given;
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int seensemi;
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int cnt;
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bool hadpr = 0;
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resetflav();
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nochng();
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for (;;) {
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/*
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* If dot at last command
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* ended up at zero, advance to one if there is a such.
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*/
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if (dot <= zero) {
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dot = zero;
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if (dol > zero)
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dot = one;
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}
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shudclob = 0;
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/*
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* If autoprint or trailing print flags,
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* print the line at the specified offset
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* before the next command.
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*/
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if (pflag ||
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lchng != chng && value(AUTOPRINT) && !inglobal && !inopen && endline) {
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pflag = 0;
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nochng();
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if (dol != zero) {
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addr1 = addr2 = dot + poffset;
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if (addr1 < one || addr1 > dol)
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error(catgets(catd, 1, 17,
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"Offset out-of-bounds|Offset after command too large"));
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setdot1();
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goto print;
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}
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}
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nochng();
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/*
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* Print prompt if appropriate.
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* If not in global flush output first to prevent
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* going into pfast mode unreasonably.
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*/
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if (inglobal == 0) {
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flush();
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if (!hush && value(PROMPT) && !globp && !noprompt && endline) {
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putchar(':');
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hadpr = 1;
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}
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TSYNC();
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}
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/*
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* Gobble up the address.
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* Degenerate addresses yield ".".
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*/
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addr2 = 0;
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given = seensemi = 0;
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do {
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addr1 = addr2;
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addr = address(0);
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c = getcd();
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if (addr == 0)
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if (c == ',')
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addr = dot;
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else if (addr1 != 0) {
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addr2 = dot;
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break;
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} else
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break;
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addr2 = addr;
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given++;
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if (c == ';') {
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c = ',';
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dot = addr;
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seensemi = 1;
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}
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} while (c == ',');
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if (c == '%') {
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/* %: same as 1,$ */
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addr1 = one;
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addr2 = dol;
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given = 2;
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c = getchar();
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}
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if (addr1 == 0)
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addr1 = addr2;
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if (c == ':')
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c = getchar();
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/*
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* Set command name for special character commands.
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*/
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tailspec(c);
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/*
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* If called via : escape from open or visual, limit
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* the set of available commands here to save work below.
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*/
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if (inopen) {
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if (c=='\n' || c=='\r' || c==CTRL('d') || c==EOF) {
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if (addr2)
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dot = addr2;
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if (c == EOF)
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return;
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continue;
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}
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if (any(c, "o"))
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notinvis:
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tailprim(Command, 1, 1);
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}
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/* choice: */
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switch (c) {
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case 'a':
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switch(peekchar()) {
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case 'b':
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/* abbreviate */
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tail("abbreviate");
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setnoaddr();
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mapcmd(0, 1);
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anyabbrs = 1;
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continue;
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case 'r':
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/* args */
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tail("args");
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setnoaddr();
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eol();
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pargs();
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continue;
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}
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/* append */
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if (inopen)
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goto notinvis;
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tail("append");
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setdot();
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aiflag = exclam();
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newline();
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vmacchng(0);
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deletenone();
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setin(addr2);
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inappend = 1;
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ignore(append(gettty, addr2));
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inappend = 0;
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nochng();
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continue;
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case 'c':
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switch (peekchar()) {
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/* copy */
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case 'o':
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tail("copy");
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vmacchng(0);
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move();
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continue;
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#ifdef CHDIR
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/* cd */
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case 'd':
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tail("cd");
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goto changdir;
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/* chdir */
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case 'h':
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ignchar();
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if (peekchar() == 'd') {
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register char *p;
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tail2of("chdir");
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changdir:
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if (savedfile[0] == '/' || !value(WARN))
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ignore(exclam());
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else
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ignore(quickly());
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if (skipend()) {
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p = getenv("HOME");
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if (p == NULL)
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error(catgets(catd, 1,
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18, "Home directory unknown"));
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} else
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getone(), p = file;
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eol();
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if (chdir(p) < 0)
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filioerr(p);
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if (savedfile[0] != '/')
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edited = 0;
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continue;
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}
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if (inopen)
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tailprim("change", 2, 1);
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tail2of("change");
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break;
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#endif
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default:
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if (inopen)
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goto notinvis;
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tail("change");
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break;
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}
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/* change */
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aiflag = exclam();
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setCNL();
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vmacchng(0);
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setin(addr1);
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delete(0);
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inappend = 1;
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ignore(append(gettty, addr1 - 1));
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inappend = 0;
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nochng();
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continue;
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/* delete */
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case 'd':
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/*
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* Caution: dp and dl have special meaning already.
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*/
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tail("delete");
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c = cmdreg();
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setCNL();
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vmacchng(0);
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if (c)
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YANKreg(c);
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delete(0);
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appendnone();
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vkillDEL();
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continue;
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/* edit */
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/* ex */
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case 'e':
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tail(peekchar() == 'x' ? "ex" : "edit");
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editcmd:
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if (!exclam() && chng)
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c = 'E';
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filename(c);
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if (c == 'E') {
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ungetchar(lastchar());
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ignore(quickly());
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}
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setnoaddr();
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doecmd:
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init();
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addr2 = zero;
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laste++;
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synced();
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rop(c);
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#ifdef INCORB
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tlaste();
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#endif
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laste = 0;
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synced();
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nochng();
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continue;
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/* file */
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case 'f':
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tail("file");
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setnoaddr();
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filename(c);
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noonl();
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/*
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synctmp();
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*/
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continue;
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/* global */
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case 'g':
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tail("global");
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global(!exclam());
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nochng();
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continue;
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/* insert */
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case 'i':
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if (inopen)
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goto notinvis;
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tail("insert");
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setdot();
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nonzero();
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aiflag = exclam();
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newline();
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vmacchng(0);
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deletenone();
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setin(addr2);
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inappend = 1;
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ignore(append(gettty, addr2 - 1));
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inappend = 0;
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if (dot == zero && dol > zero)
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dot = one;
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nochng();
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continue;
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/* join */
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case 'j':
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tail("join");
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c = exclam();
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setcount();
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nonzero();
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newline();
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vmacchng(0);
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if (given < 2 && addr2 != dol)
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addr2++;
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join(c);
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continue;
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/* k */
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case 'k':
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casek:
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pastwh();
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c = getchar();
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if (endcmd(c))
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serror(catgets(catd, 1, 19,
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"Mark what?|%s requires following letter"), Command);
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newline();
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if (!islower(c))
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error(catgets(catd, 1, 20,
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"Bad mark|Mark must specify a letter"));
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setdot();
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nonzero();
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names[c - 'a'] = *addr2 &~ 01;
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anymarks = 1;
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continue;
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/* list */
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case 'l':
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tail("list");
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setCNL();
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ignorf(setlist(1));
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pflag = 0;
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goto print;
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case 'm':
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if (peekchar() == 'a') {
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ignchar();
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if (peekchar() == 'p') {
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/* map */
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tail2of("map");
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setnoaddr();
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mapcmd(0, 0);
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continue;
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}
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/* mark */
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tail2of("mark");
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goto casek;
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}
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/* move */
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tail("move");
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vmacchng(0);
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move();
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continue;
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case 'n':
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if (peekchar() == 'u') {
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tail("number");
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goto numberit;
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}
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/* next */
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tail("next");
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setnoaddr();
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ckaw();
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ignore(quickly());
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if (getargs())
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makargs();
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next();
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c = 'e';
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filename(c);
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if (recov)
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goto recovnext;
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goto doecmd;
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/* open */
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case 'o':
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tail("open");
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oop();
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pflag = 0;
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nochng();
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continue;
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case 'p':
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case 'P':
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switch (peekchar()) {
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/* put */
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case 'u':
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tail("put");
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setdot();
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c = cmdreg();
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eol();
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vmacchng(0);
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if (c)
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putreg(c);
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else
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put(0);
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continue;
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case 'r':
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ignchar();
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if (peekchar() == 'e') {
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/* preserve */
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tail2of("preserve");
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eol();
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if (preserve() == 0)
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error(catgets(catd, 1, 21,
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"Preserve failed!"));
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|
else
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error(catgets(catd, 1, 22,
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"File preserved."));
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}
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tail2of("print");
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break;
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|
default:
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tail("print");
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break;
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}
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/* print */
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setCNL();
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pflag = 0;
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print:
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nonzero();
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if (CL && span() > TLINES) {
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flush1();
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vclear();
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}
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plines(addr1, addr2, 1);
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continue;
|
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|
|
/* quit */
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|
case 'q':
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|
tail("quit");
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setnoaddr();
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|
c = quickly();
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eol();
|
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if (!c)
|
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quit:
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nomore();
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if (inopen) {
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vgoto(WECHO, 0);
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|
if (!ateopr())
|
|
vnfl();
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|
else {
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|
tostop();
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|
}
|
|
flush();
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|
setty(normf);
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|
}
|
|
cleanup(1);
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|
exitex(0);
|
|
|
|
case 'r':
|
|
if (peekchar() == 'e') {
|
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ignchar();
|
|
switch (peekchar()) {
|
|
|
|
/* rewind */
|
|
case 'w':
|
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tail2of("rewind");
|
|
setnoaddr();
|
|
if (!exclam()) {
|
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ckaw();
|
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if (chng && dol > zero)
|
|
error(catgets(catd,
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1, 23, "No write@since last change (:rewind! overrides)"));
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}
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eol();
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erewind();
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next();
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c = 'e';
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ungetchar(lastchar());
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filename(c);
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goto doecmd;
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|
|
/* recover */
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case 'c':
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tail2of("recover");
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setnoaddr();
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c = 'e';
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if (!exclam() && chng)
|
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c = 'E';
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|
filename(c);
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if (c == 'E') {
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ungetchar(lastchar());
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ignore(quickly());
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}
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recovnext:
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init();
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addr2 = zero;
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laste++;
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|
synced();
|
|
recover();
|
|
rop2();
|
|
revocer();
|
|
if (status == 0)
|
|
rop3(c);
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|
if (dol != zero)
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|
change();
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#ifdef INCORB
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tlaste();
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#endif
|
|
laste = 0;
|
|
nochng();
|
|
continue;
|
|
}
|
|
tail2of("read");
|
|
} else
|
|
tail("read");
|
|
/* read */
|
|
if (savedfile[0] == 0 && dol == zero)
|
|
c = 'e';
|
|
pastwh();
|
|
vmacchng(0);
|
|
if (peekchar() == '!') {
|
|
setdot();
|
|
ignchar();
|
|
unix0(0);
|
|
filter(0);
|
|
continue;
|
|
}
|
|
filename(c);
|
|
rop(c);
|
|
nochng();
|
|
if (inopen && endline && addr1 > zero && addr1 < dol)
|
|
dot = addr1 + 1;
|
|
continue;
|
|
|
|
case 's':
|
|
switch (peekchar()) {
|
|
/*
|
|
* Caution: 2nd char cannot be c, g, or r
|
|
* because these have meaning to substitute.
|
|
*/
|
|
|
|
/* set */
|
|
case 'e':
|
|
tail("set");
|
|
setnoaddr();
|
|
set();
|
|
continue;
|
|
|
|
/* shell */
|
|
case 'h':
|
|
tail("shell");
|
|
setNAEOL();
|
|
vnfl();
|
|
putpad(TE);
|
|
flush();
|
|
unixwt(1, unixex("-i", (char *) 0, 0, 0));
|
|
vcontin(0);
|
|
continue;
|
|
|
|
/* source */
|
|
case 'o':
|
|
#ifdef notdef
|
|
if (inopen)
|
|
goto notinvis;
|
|
#endif
|
|
tail("source");
|
|
setnoaddr();
|
|
getone();
|
|
eol();
|
|
source(file, 0);
|
|
continue;
|
|
#ifdef SIGTSTP
|
|
/* stop, suspend */
|
|
case 't':
|
|
tail("stop");
|
|
goto suspend;
|
|
case 'u':
|
|
tail("suspend");
|
|
suspend:
|
|
if (!ldisc)
|
|
error(catgets(catd, 1, 24,
|
|
"Old tty driver|Not using new tty driver/shell"));
|
|
c = exclam();
|
|
eol();
|
|
if (!c)
|
|
ckaw();
|
|
#ifdef SIGTSTP
|
|
onsusp(SIGTSTP);
|
|
#endif
|
|
continue;
|
|
#endif
|
|
|
|
}
|
|
/* fall into ... */
|
|
|
|
/* & */
|
|
/* ~ */
|
|
/* substitute */
|
|
case '&':
|
|
case '~':
|
|
Command = "substitute";
|
|
if (c == 's')
|
|
tail(Command);
|
|
vmacchng(0);
|
|
if (!substitute(c))
|
|
pflag = 0;
|
|
continue;
|
|
|
|
/* t */
|
|
case 't':
|
|
if (peekchar() == 'a') {
|
|
tail("tag");
|
|
tagfind(exclam());
|
|
if (!inopen)
|
|
lchng = chng - 1;
|
|
else
|
|
nochng();
|
|
continue;
|
|
}
|
|
tail("t");
|
|
vmacchng(0);
|
|
move();
|
|
continue;
|
|
|
|
case 'u':
|
|
if (peekchar() == 'n') {
|
|
ignchar();
|
|
switch(peekchar()) {
|
|
/* unmap */
|
|
case 'm':
|
|
tail2of("unmap");
|
|
setnoaddr();
|
|
mapcmd(1, 0);
|
|
continue;
|
|
/* unabbreviate */
|
|
case 'a':
|
|
tail2of("unabbreviate");
|
|
setnoaddr();
|
|
mapcmd(1, 1);
|
|
anyabbrs = 1;
|
|
continue;
|
|
}
|
|
/* undo */
|
|
tail2of("undo");
|
|
} else
|
|
tail("undo");
|
|
setnoaddr();
|
|
markDOT();
|
|
c = exclam();
|
|
newline();
|
|
undo(c);
|
|
continue;
|
|
|
|
case 'v':
|
|
switch (peekchar()) {
|
|
|
|
case 'e':
|
|
/* version */
|
|
tail("version");
|
|
setNAEOL();
|
|
printver();
|
|
noonl();
|
|
continue;
|
|
|
|
/* visual */
|
|
case 'i':
|
|
tail("visual");
|
|
if (inopen) {
|
|
c = 'e';
|
|
goto editcmd;
|
|
}
|
|
vop();
|
|
pflag = 0;
|
|
nochng();
|
|
continue;
|
|
}
|
|
/* v */
|
|
tail("v");
|
|
global(0);
|
|
nochng();
|
|
continue;
|
|
|
|
/* write */
|
|
case 'w':
|
|
c = peekchar();
|
|
tail(c == 'q' ? "wq" : "write");
|
|
wq:
|
|
if (skipwh() && peekchar() == '!') {
|
|
pofix();
|
|
ignchar();
|
|
setall();
|
|
unix0(0);
|
|
filter(1);
|
|
} else {
|
|
setall();
|
|
wop(1);
|
|
nochng();
|
|
}
|
|
if (c == 'q')
|
|
goto quit;
|
|
continue;
|
|
|
|
/* xit */
|
|
case 'x':
|
|
tail("xit");
|
|
if (!chng)
|
|
goto quit;
|
|
c = 'q';
|
|
goto wq;
|
|
|
|
/* yank */
|
|
case 'y':
|
|
tail("yank");
|
|
c = cmdreg();
|
|
setcount();
|
|
eol();
|
|
vmacchng(0);
|
|
if (c)
|
|
YANKreg(c);
|
|
else
|
|
yank(0);
|
|
vkillDEL();
|
|
continue;
|
|
|
|
/* z */
|
|
case 'z':
|
|
zop(0);
|
|
pflag = 0;
|
|
continue;
|
|
|
|
/* * */
|
|
/* @ */
|
|
case '*':
|
|
case '@':
|
|
c = getchar();
|
|
if (c=='\n' || c=='\r')
|
|
ungetchar(c);
|
|
if (any(c, "@*\n\r"))
|
|
c = lastmac;
|
|
if (isupper(c))
|
|
c = tolower(c);
|
|
if (!islower(c))
|
|
error(catgets(catd, 1, 25, "Bad register"));
|
|
newline();
|
|
setdot();
|
|
cmdmac(c);
|
|
continue;
|
|
|
|
/* | */
|
|
case '|':
|
|
endline = 0;
|
|
goto caseline;
|
|
|
|
/* \n */
|
|
case '\n':
|
|
endline = 1;
|
|
caseline:
|
|
notempty();
|
|
if (addr2 == 0) {
|
|
if (UP != NOSTR && c == '\n' && !inglobal)
|
|
c = CTRL('k');
|
|
if (inglobal)
|
|
addr1 = addr2 = dot;
|
|
else {
|
|
if (dot == dol)
|
|
error(catgets(catd, 1, 26,
|
|
"At EOF|At end-of-file"));
|
|
addr1 = addr2 = dot + 1;
|
|
}
|
|
}
|
|
setdot();
|
|
nonzero();
|
|
if (seensemi)
|
|
addr1 = addr2;
|
|
getline(*addr1);
|
|
if (c == CTRL('k')) {
|
|
flush1();
|
|
destline--;
|
|
if (hadpr)
|
|
shudclob = 1;
|
|
}
|
|
plines(addr1, addr2, 1);
|
|
continue;
|
|
|
|
/* " */
|
|
case '"':
|
|
comment();
|
|
continue;
|
|
|
|
/* # */
|
|
case '#':
|
|
numberit:
|
|
setCNL();
|
|
ignorf(setnumb(1));
|
|
pflag = 0;
|
|
goto print;
|
|
|
|
/* = */
|
|
case '=':
|
|
newline();
|
|
setall();
|
|
if (inglobal == 2)
|
|
pofix();
|
|
printf("%d", lineno(addr2));
|
|
noonl();
|
|
continue;
|
|
|
|
/* ! */
|
|
case '!':
|
|
if (addr2 != 0) {
|
|
vmacchng(0);
|
|
unix0(0);
|
|
setdot();
|
|
filter(2);
|
|
} else {
|
|
unix0(1);
|
|
pofix();
|
|
putpad(TE);
|
|
flush();
|
|
unixwt(1, unixex("-c", uxb, 0, 0));
|
|
vclrech(1); /* vcontin(0); */
|
|
nochng();
|
|
}
|
|
continue;
|
|
|
|
/* < */
|
|
/* > */
|
|
case '<':
|
|
case '>':
|
|
for (cnt = 1; peekchar() == c; cnt++)
|
|
ignchar();
|
|
setCNL();
|
|
vmacchng(0);
|
|
shift(c, cnt);
|
|
continue;
|
|
|
|
/* ^D */
|
|
/* EOF */
|
|
case CTRL('d'):
|
|
case EOF:
|
|
if (exitoneof) {
|
|
if (addr2 != 0)
|
|
dot = addr2;
|
|
return;
|
|
}
|
|
if (!isatty(0)) {
|
|
if (intty)
|
|
/*
|
|
* Chtty sys call at UCB may cause a
|
|
* input which was a tty to suddenly be
|
|
* turned into /dev/null.
|
|
*/
|
|
onhup(SIGHUP);
|
|
return;
|
|
}
|
|
if (addr2 != 0) {
|
|
setlastchar('\n');
|
|
putnl();
|
|
}
|
|
if (dol == zero) {
|
|
if (addr2 == 0)
|
|
putnl();
|
|
notempty();
|
|
}
|
|
ungetchar(EOF);
|
|
zop(hadpr);
|
|
continue;
|
|
|
|
default:
|
|
if (!isalpha(c) && (c&0200) == 0)
|
|
break;
|
|
ungetchar(c);
|
|
tailprim("", 0, 0);
|
|
}
|
|
error(catgets(catd, 1, 27,
|
|
"What?|Unknown command character '%c'"), c);
|
|
}
|
|
}
|