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

198 lines
5.0 KiB
C

/*-
* Copyright (c) 1992, 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.
*/
#ifndef lint
/* from: static char sccsid[] = "@(#)ex_print.c 8.6 (Berkeley) 11/2/93"; */
static char *rcsid = "$Id: ex_print.c,v 1.2 1994/01/24 06:40:30 cgd Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <ctype.h>
#include <string.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;
{
register int ch, col, rlen;
recno_t from, to;
size_t len;
int cnt;
char *p, buf[10];
F_SET(sp, S_INTERRUPTIBLE);
for (from = fp->lno, to = tp->lno; from <= to; ++from) {
/* Display the line number. */
if (LF_ISSET(E_F_HASH))
col = ex_printf(EXCOOKIE, "%7ld ", from);
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);
}
#define WCHECK(ch) { \
if (col == sp->cols) { \
(void)ex_printf(EXCOOKIE, "\n"); \
col = 0; \
} \
(void)ex_printf(EXCOOKIE, "%c", ch); \
++col; \
}
for (rlen = len; rlen--;) {
ch = *p++;
if (LF_ISSET(E_F_LIST))
if (ch != '\t' && isprint(ch)) {
WCHECK(ch);
} else if (ch & 0x80) {
(void)snprintf(buf,
sizeof(buf), "\\%03o", ch);
len = strlen(buf);
for (cnt = 0; cnt < len; ++cnt)
WCHECK(buf[cnt]);
} else {
WCHECK('^');
WCHECK(ch + 0x40);
}
else {
ch &= 0x7f;
if (ch == '\t') {
while (col < sp->cols &&
++col % O_VAL(sp, O_TABSTOP))
(void)ex_printf(EXCOOKIE, " ");
if (col == sp->cols) {
col = 0;
(void)ex_printf(EXCOOKIE, "\n");
}
} else if (isprint(ch)) {
WCHECK(ch);
} else if (ch == '\n') {
col = 0;
(void)ex_printf(EXCOOKIE, "\n");
} else {
WCHECK('^');
WCHECK(ch + 0x40);
}
}
}
if (LF_ISSET(E_F_LIST)) {
WCHECK('$');
} else if (len == 0) {
/*
* If the line is empty, output a space
* to overwrite the colon prompt.
*/
WCHECK(' ');
}
(void)ex_printf(EXCOOKIE, "\n");
if (F_ISSET(sp, S_INTERRUPTED))
break;
}
return (0);
}