usr/src/lib/libcurses/scanw.c

/*
 * Copyright (c) 1981 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)scanw.c     5.14 (Berkeley) %G%";
#endif  /* not lint */

/*
 * scanw and friends.
 */

#include <curses.h>

#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif

/*
 * scanw --
 *      Implement a scanf on the standard screen.
 */
int
#if __STDC__
scanw(const char *fmt, ...)
#else
scanw(fmt, va_alist)
        char *fmt;
        va_dcl
#endif
{
        va_list ap;
        int ret;

#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        ret = vwscanw(stdscr, fmt, ap);
        va_end(ap);
        return (ret);
}

/*
 * wscanw --
 *      Implements a scanf on the given window.
 */
int
#if __STDC__
wscanw(WINDOW *win, const char *fmt, ...)
#else
wscanw(win, fmt, va_alist)
        WINDOW *win;
        char *fmt;
        va_dcl
#endif
{
        va_list ap;
        int ret;

#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        ret = vwscanw(win, fmt, ap);
        va_end(ap);
        return (ret);
}

/*
 * mvscanw, mvwscanw --
 *      Implement the mvscanw commands.  Due to the variable number of
 *      arguments, they cannot be macros.  Another sigh....
 */
int
#if __STDC__
mvscanw(register int y, register int x, const char *fmt,...)
#else
mvscanw(y, x, fmt, va_alist)
        register int y, x;
        char *fmt;
        va_dcl
#endif
{
        va_list ap;
        int ret;

        if (move(y, x) != OK)
                return (ERR);
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        ret = vwscanw(stdscr, fmt, ap);
        va_end(ap);
        return (ret);
}

int
#if __STDC__
mvwscanw(register WINDOW * win, register int y, register int x,
    const char *fmt, ...)
#else
mvwscanw(win, y, x, fmt, va_alist)
        register WINDOW *win;
        register int y, x;
        char *fmt;
        va_dcl
#endif
{
        va_list ap;
        int ret;

        if (move(y, x) != OK)
                return (ERR);
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        ret = vwscanw(win, fmt, ap);
        va_end(ap);
        return (ret);
}

/*
 * vwscanw --
 *      This routine actually executes the scanf from the window.
 */
int
vwscanw(win, fmt, ap)
        WINDOW *win;
        const char *fmt;
        va_list ap;
{

        char buf[1024];

        return (wgetstr(win, buf) == OK ?
            vsscanf(buf, fmt, ap) : ERR);
}