NetBSD/usr.bin/vi/ex/ex_print.c

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/*-
* Copyright (c) 1992, 1993, 1994
* 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.
*/
#ifndef lint
1994-08-18 00:12:00 +04:00
static char sccsid[] = "@(#)ex_print.c 8.16 (Berkeley) 8/17/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <ctype.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include "compat.h"
#include <db.h>
#include <regex.h>
#include "vi.h"
#include "excmd.h"
/*
* ex_list -- :[line [,line]] l[ist] [count] [flags]
*
* Display the addressed lines such that the output is unambiguous.
*/
int
ex_list(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
if (ex_print(sp, ep,
&cmdp->addr1, &cmdp->addr2, cmdp->flags | E_F_LIST))
return (1);
sp->lno = cmdp->addr2.lno;
sp->cno = cmdp->addr2.cno;
return (0);
}
/*
* ex_number -- :[line [,line]] nu[mber] [count] [flags]
*
* Display the addressed lines with a leading line number.
*/
int
ex_number(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
if (ex_print(sp, ep,
&cmdp->addr1, &cmdp->addr2, cmdp->flags | E_F_HASH))
return (1);
sp->lno = cmdp->addr2.lno;
sp->cno = cmdp->addr2.cno;
return (0);
}
/*
* ex_pr -- :[line [,line]] p[rint] [count] [flags]
*
* Display the addressed lines.
*/
int
ex_pr(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
if (ex_print(sp, ep, &cmdp->addr1, &cmdp->addr2, cmdp->flags))
return (1);
sp->lno = cmdp->addr2.lno;
sp->cno = cmdp->addr2.cno;
return (0);
}
/*
* ex_print --
* Print the selected lines.
*/
int
ex_print(sp, ep, fp, tp, flags)
SCR *sp;
EXF *ep;
MARK *fp, *tp;
register int flags;
{
recno_t from, to;
size_t col, len;
char *p;
F_SET(sp, S_INTERRUPTIBLE);
for (from = fp->lno, to = tp->lno; from <= to; ++from) {
/*
* Display the line number. The %6 format is specified
* by POSIX 1003.2, and is almost certainly large enough.
* Check, though, just in case.
*/
if (LF_ISSET(E_F_HASH))
if (from <= 999999)
col = ex_printf(EXCOOKIE, "%6ld ", from);
else
col = ex_printf(EXCOOKIE, "TOOBIG ");
else
col = 0;
/*
* Display the line. The format for E_F_PRINT isn't very good,
* especially in handling end-of-line tabs, but they're almost
* backward compatible.
*/
if ((p = file_gline(sp, ep, from, &len)) == NULL) {
GETLINE_ERR(sp, from);
return (1);
}
if (len == 0 && !LF_ISSET(E_F_LIST))
(void)ex_printf(EXCOOKIE, "\n");
else if (ex_ldisplay(sp, p, len, col, flags))
return (1);
if (INTERRUPTED(sp))
break;
}
return (0);
}
/*
* ex_ldisplay --
* Display a line.
*/
int
ex_ldisplay(sp, lp, len, col, flags)
SCR *sp;
CHAR_T *lp;
size_t len, col;
u_int flags;
{
CHAR_T ch, *kp;
u_long ts;
size_t tlen;
ts = O_VAL(sp, O_TABSTOP);
for (;; --len) {
if (len > 0)
ch = *lp++;
else if (LF_ISSET(E_F_LIST))
ch = '$';
else
break;
if (ch == '\t' && !LF_ISSET(E_F_LIST))
for (tlen = ts - col % ts;
col < sp->cols && tlen--; ++col)
(void)ex_printf(EXCOOKIE, " ");
else {
kp = KEY_NAME(sp, ch);
tlen = KEY_LEN(sp, ch);
if (col + tlen < sp->cols) {
(void)ex_printf(EXCOOKIE, "%s", kp);
col += tlen;
} else
for (; tlen--; ++kp, ++col) {
if (col == sp->cols) {
col = 0;
(void)ex_printf(EXCOOKIE, "\n");
}
(void)ex_printf(EXCOOKIE, "%c", *kp);
}
}
if (len == 0)
break;
}
(void)ex_printf(EXCOOKIE, "\n");
return (0);
}