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/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "$Id: v_util.c,v 10.14 2001/06/25 15:19:36 skimo Exp $";
#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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../common/common.h"
#include "vi.h"
/*
* v_eof --
* Vi end-of-file error.
*
* PUBLIC: void v_eof(SCR *, MARK *);
*/
void
v_eof(SCR *sp, MARK *mp)
{
recno_t lno;
if (mp == NULL)
v_emsg(sp, NULL, VIM_EOF);
else {
if (db_last(sp, &lno))
return;
if (mp->lno >= lno)
v_emsg(sp, NULL, VIM_EOF);
else
msgq(sp, M_BERR, "195|Movement past the end-of-file");
}
}
/*
* v_eol --
* Vi end-of-line error.
*
* PUBLIC: void v_eol(SCR *, MARK *);
*/
void
v_eol(SCR *sp, MARK *mp)
{
size_t len;
if (mp == NULL)
v_emsg(sp, NULL, VIM_EOL);
else {
if (db_get(sp, mp->lno, DBG_FATAL, NULL, &len))
return;
if (mp->cno == len - 1)
v_emsg(sp, NULL, VIM_EOL);
else
msgq(sp, M_BERR, "196|Movement past the end-of-line");
}
}
/*
* v_nomove --
* Vi no cursor movement error.
*
* PUBLIC: void v_nomove(SCR *);
*/
void
v_nomove(SCR *sp)
{
msgq(sp, M_BERR, "197|No cursor movement made");
}
/*
* v_sof --
* Vi start-of-file error.
*
* PUBLIC: void v_sof(SCR *, MARK *);
*/
void
v_sof(SCR *sp, MARK *mp)
{
if (mp == NULL || mp->lno == 1)
msgq(sp, M_BERR, "198|Already at the beginning of the file");
else
msgq(sp, M_BERR, "199|Movement past the beginning of the file");
}
/*
* v_sol --
* Vi start-of-line error.
*
* PUBLIC: void v_sol(SCR *);
*/
void
v_sol(SCR *sp)
{
msgq(sp, M_BERR, "200|Already in the first column");
}
/*
* v_isempty --
* Return if the line contains nothing but white-space characters.
*
* PUBLIC: int v_isempty(CHAR_T *, size_t);
*/
int
v_isempty(CHAR_T *p, size_t len)
{
for (; len--; ++p)
if (!isblank(*p))
return (0);
return (1);
}
/*
* v_emsg --
* Display a few common vi messages.
*
* PUBLIC: void v_emsg(SCR *, char *, vim_t);
*/
void
v_emsg(SCR *sp, char *p, vim_t which)
{
switch (which) {
case VIM_COMBUF:
msgq(sp, M_ERR,
"201|Buffers should be specified before the command");
break;
case VIM_EMPTY:
msgq(sp, M_BERR, "209|The file is empty");
break;
case VIM_EOF:
msgq(sp, M_BERR, "202|Already at end-of-file");
break;
case VIM_EOL:
msgq(sp, M_BERR, "203|Already at end-of-line");
break;
case VIM_NOCOM:
case VIM_NOCOM_B:
msgq(sp,
which == VIM_NOCOM_B ? M_BERR : M_ERR,
"204|%s isn't a vi command", p);
break;
case VIM_WRESIZE:
msgq(sp, M_ERR, "Window resize interrupted text input mode");
break;
case VIM_USAGE:
msgq(sp, M_ERR, "205|Usage: %s", p);
break;
}
}
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