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authorThomas Ulmer <thomasmulmer02@gmail.com>2026-03-01 11:37:31 -0800
committerThomas Ulmer <thomasmulmer02@gmail.com>2026-03-01 11:37:31 -0800
commite01b84a6698f5060fd7dea789fc0ffa872f26b15 (patch)
treeda1d4369048833f0496ae51d400d118f30c499bd /tree/src/vi/ex-070224/ex_get.c
parent6d8430971dada74478a0cd2c9eca2272a105b744 (diff)
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diff --git a/tree/src/vi/ex-070224/ex_get.c b/tree/src/vi/ex-070224/ex_get.c
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-/*
- * This code contains changes by
- * Gunnar Ritter, Freiburg i. Br., Germany, 2002. All rights reserved.
- *
- * Conditions 1, 2, and 4 and the no-warranty notice below apply
- * to these changes.
- *
- *
- * Copyright (c) 1980, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *
- * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * Redistributions of source code and documentation must retain the
- * above copyright notice, this list of conditions and the following
- * disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed or owned by Caldera
- * International, Inc.
- * Neither the name of Caldera International, Inc. nor the names of
- * other contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
- * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE
- * LIABLE FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef lint
-#ifdef DOSCCS
-static char sccsid[] = "@(#)ex_get.c 1.18 (gritter) 8/4/05";
-#endif
-#endif
-
-/* from ex_get.c 7.6 (Berkeley) 6/7/85 */
-
-#include "ex.h"
-#include "ex_tty.h"
-
-/*
- * Input routines for command mode.
- * Since we translate the end of reads into the implied ^D's
- * we have different flavors of routines which do/don't return such.
- */
-static bool junkbs;
-int lastc = '\n';
-
-void
-ignchar(void)
-{
- ignore(getchar());
-}
-
-int
-getach(void)
-{
- register int c;
- static char in_line[BUFSIZ];
- /* struct stat statb; */
-
- c = peekc;
- if (c != 0) {
- peekc = 0;
- return (c);
- }
- if (globp) {
- if (*globp)
- return (*globp++&0377);
- globp = 0;
- return (lastc = EOF);
- }
-top:
- if (input) {
- if (c = *input++&0377) {
- if (verbose && !intty)
- write(2, &input[-1], 1);
- if (c &= TRIM)
- return (lastc = c);
- goto top;
- }
- input = 0;
- }
- flush();
- if (intty) {
- c = read(0, in_line, sizeof in_line - 4);
- if (c < 0)
- return (lastc = EOF);
- if (c == 0 || in_line[c-1] != '\n')
- in_line[c++] = CTRL('d');
- if (in_line[c-1] == '\n')
- noteinp();
- in_line[c] = 0;
- for (c--; c >= 0; c--)
- if (in_line[c] == 0)
-#ifndef BIT8
- in_line[c] = QUOTE;
-#else
- in_line[c] = '\200';
-#endif
- input = in_line;
- goto top;
- }
- c = read(0, in_line, sizeof in_line - 1);
- if(c <= 0)
- return(lastc = EOF);
- in_line[c] = '\0';
- input = in_line;
- goto top;
-}
-
-int
-getchar(void)
-{
- register int c;
-
- do
- c = getcd();
- while (!globp && c == CTRL('d'));
- return (c);
-}
-
-void
-checkjunk(int c)
-{
-
- if (junkbs == 0 && c == '\b') {
- write(2, cntrlhm, 13);
- junkbs = 1;
- }
-}
-
-int
-getcd(void)
-{
- register int c;
-
-again:
- c = getach();
- if (c == EOF)
- return (c);
- c &= TRIM;
- if (!inopen)
- if (!globp && c == CTRL('d'))
- setlastchar('\n');
- else if (junk(c)) {
- checkjunk(c);
- goto again;
- }
- return (c);
-}
-
-int
-peekchar(void)
-{
-
- if (peekc == 0)
- peekc = getchar();
- return (peekc);
-}
-
-int
-peekcd(void)
-{
- if (peekc == 0)
- peekc = getcd();
- return (peekc);
-}
-
-/*
- * Crunch the indent.
- * Hard thing here is that in command mode some of the indent
- * is only implicit, so we must seed the column counter.
- * This should really be done differently so as to use the whitecnt routine
- * and also to hack indenting for LISP.
- */
-int
-smunch(register int col, char *ocp)
-{
- register char *cp;
-
- cp = ocp;
- for (;;)
- switch (*cp++) {
-
- case ' ':
- col++;
- continue;
-
- case '\t':
- col += value(TABSTOP) - (col % value(TABSTOP));
- continue;
-
- default:
- cp--;
- CP(ocp, cp);
- return (col);
- }
-}
-
-/*
- * Input routine for insert/append/change in command mode.
- * Most work here is in handling autoindent.
- */
-static short lastin;
-
-int
-gettty(void)
-{
- register int c = 0;
- register char *cp = genbuf;
- char hadup = 0;
- int offset = Pline == numbline ? 8 : 0;
- int ch;
-
- if (intty && !inglobal) {
- if (offset) {
- holdcm = 1;
- printf(" %4d ", lineDOT() + 1);
- flush();
- holdcm = 0;
- }
- if (value(AUTOINDENT) ^ aiflag) {
- holdcm = 1;
-#ifdef LISPCODE
- if (value(LISP))
- lastin = lindent(dot + 1);
-#endif
- tab(lastin + offset);
- while ((c = getcd()) == CTRL('d')) {
- if (lastin == 0 && isatty(0) == -1) {
- holdcm = 0;
- return (EOF);
- }
- lastin = backtab(lastin);
- tab(lastin + offset);
- }
- switch (c) {
-
- case '^':
- case '0':
- ch = getcd();
- if (ch == CTRL('d')) {
- if (c == '0')
- lastin = 0;
- if (!OS) {
- putchar('\b' | QUOTE);
- putchar(' ' | QUOTE);
- putchar('\b' | QUOTE);
- }
- tab(offset);
- hadup = 1;
- c = getchar();
- } else
- ungetchar(ch);
- break;
-
- case '.':
- if (peekchar() == '\n') {
- ignchar();
- noteinp();
- holdcm = 0;
- return (EOF);
- }
- break;
-
- case '\n':
- hadup = 1;
- break;
- }
- }
- flush();
- holdcm = 0;
- }
- if (c == 0)
- c = getchar();
- while (c != EOF && c != '\n') {
- if (cp > &genbuf[LBSIZE - 2])
- error(catgets(catd, 1, 71, "Input line too long"));
- *cp++ = c;
- c = getchar();
- }
- if (c == EOF) {
- if (inglobal)
- ungetchar(EOF);
- return (EOF);
- }
- *cp = 0;
- cp = linebuf;
- if ((value(AUTOINDENT) ^ aiflag) && hadup == 0 && intty && !inglobal) {
- lastin = c = smunch(lastin, genbuf);
- for (c = lastin; c >= value(TABSTOP); c -= value(TABSTOP))
- *cp++ = '\t';
- for (; c > 0; c--)
- *cp++ = ' ';
- }
- CP(cp, genbuf);
- if (linebuf[0] == '.' && linebuf[1] == 0)
- return (EOF);
- return (0);
-}
-
-void
-setin(line *addr)
-{
-
- if (addr == zero)
- lastin = 0;
- else
- getline(*addr), lastin = smunch(0, linebuf);
-}