ww_availmodes and stuff

[unix-history] / usr / src / usr.bin / window / error.c

#ifndef lint
static  char *sccsid = "@(#)error.c     3.2 83/08/16";
#endif

#include "defs.h"

static char *filename;                  /* source file name */
static struct ww *errwin;               /* window for error reporting */
static int errlineno;                   /* lineno in errwin */
static char baderror;                   /* can't open the error window */

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

/*VARARGS1*/
error(fmt, a, b, c, d, e, f, g, h)
char *fmt;
{
       if (filename == 0) {
               if (terse)
                       wwbell();
               else {
                       (void) wwprintf(cmdwin, fmt, a, b, c, d, e, f, g, h);
                       (void) wwputs("  ", cmdwin);
               }
               return;
       }
       if (baderror)
               return;
       if (errwin == 0) {
               char buf[512];

               (void) sprintf(buf, "Errors from %s", filename);
               if ((errwin = openiwin(ERRLINES, buf)) == 0) {
                       (void) wwprintf(cmdwin, "Can't open error window.  ");
                       baderror++;
                       return;
               }
               errlineno = 0;
       }
       if (errlineno++ > ERRLINES - 4) {
               waitnl(errwin);
               errlineno = 0;
       }
       if (lineno != 0)
               (void) wwprintf(errwin, "line %d: ", lineno);
       (void) wwprintf(errwin, fmt, a, b, c, d, e, f, g, h);
       (void) wwprintf(errwin, "\n");
}

beginerror(fn)
char *fn;
{
       filename = malloc((unsigned) strlen(fn) + 1);
       (void) strcpy(filename, fn);
}

enderror()
{
       if (errwin != 0) {
               waitnl(errwin);
               closeiwin(errwin);
               errwin = 0;
       }
       baderror = 0;
       free(filename);
       filename = 0;
}