usr/src/usr.bin/window/error.c

#ifndef lint
static char sccsid[] = "@(#)error.c     3.12 %G%";
#endif

/*
 * Copyright (c) 1983 Regents of the University of California,
 * All rights reserved.  Redistribution permitted subject to
 * the terms of the Berkeley Software License Agreement.
 */

#include "defs.h"
#include "value.h"
#include "context.h"
#include "char.h"

#define ERRLINES 10                     /* number of lines for errwin */

/*VARARGS1*/
error(fmt, a, b, c, d, e, f, g, h)
char *fmt;
{
        register struct context *x;
        register struct ww *w;

        for (x = &cx; x != 0 && x->x_type != X_FILE; x = x->x_link)
                ;
        if (x == 0) {
                if (terse)
                        wwbell();
                else {
                        wwprintf(cmdwin, fmt, a, b, c, d, e, f, g, h);
                        wwputs("  ", cmdwin);
                }
                return;
        }
        if (x->x_noerr)
                return;
        if ((w = x->x_errwin) == 0) {
                char buf[512];

                (void) sprintf(buf, "Errors from %s", x->x_filename);
                if ((w = x->x_errwin = openiwin(ERRLINES, buf)) == 0) {
                        wwputs("Can't open error window.  ", cmdwin);
                        x->x_noerr = 1;
                        return;
                }
        }
        if (more(w, 0) == 2) {
                x->x_noerr = 1;
                return;
        }
        wwprintf(w, "line %d: ", x->x_lineno);
        wwprintf(w, fmt, a, b, c, d, e, f, g, h);
        wwputc('\n', w);
}

err_end()
{
        if (cx.x_type == X_FILE && cx.x_errwin != 0) {
                if (!cx.x_noerr)
                        waitnl(cx.x_errwin);
                closeiwin(cx.x_errwin);
                cx.x_errwin = 0;
        }
}