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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
** lib_getstr.c
**
** The routine wgetstr().
**
*/
#include "curses.priv.h"
#include "unctrl.h"
#include <string.h>
int wgetnstr(WINDOW *win, char *str, int maxlen)
{
bool oldnl, oldecho, oldraw, oldcbreak, oldkeypad;
char erasec;
char killc;
char *oldstr;
int ch;
T(("wgetnstr(%p,%p, %d) called", win, str, maxlen));
oldnl = SP->_nl;
oldecho = SP->_echo;
oldraw = SP->_raw;
oldcbreak = SP->_cbreak;
oldkeypad = win->_use_keypad;
nl();
noecho();
noraw();
cbreak();
keypad(win, TRUE);
erasec = erasechar();
killc = killchar();
oldstr = str;
if (is_wintouched(win) || (win->_flags & _HASMOVED))
wrefresh(win);
while ((ch = wgetch(win)) != ERR) {
/*
* Some terminals (the Wyse-50 is the most common) generate
* a \n from the down-arrow key. With this logic, it's the
* user's choice whether to set kcud=\n for wgetch();
* terminating *getstr() with \n should work either way.
*/
if (ch == '\n' || ch == '\r' || ch == KEY_DOWN)
break;
if (ch == erasec || ch == KEY_LEFT || ch == KEY_BACKSPACE) {
if (str > oldstr) {
str--;
if (oldecho == TRUE)
_nc_backspace(win);
}
} else if (ch == killc) {
while (str > oldstr) {
str--;
if (oldecho == TRUE)
_nc_backspace(win);
}
} else if (ch >= KEY_MIN
|| (maxlen >= 0 && str - oldstr >= maxlen)) {
beep();
} else {
if (oldecho == TRUE) {
char *glyph = unctrl(ch);
mvwaddstr(curscr, win->_begy + win->_cury,
win->_begx + win->_curx, glyph);
waddstr(win, glyph);
_nc_outstr(glyph);
SP->_curscol += strlen(glyph);
}
*str++ = ch;
}
}
win->_curx = 0;
win->_flags &= ~_NEED_WRAP;
if (win->_cury < win->_maxy)
win->_cury++;
wrefresh(win);
if (oldnl == FALSE)
nonl();
if (oldecho == TRUE)
echo();
if (oldraw == TRUE)
raw();
if (oldcbreak == FALSE)
nocbreak();
if (oldkeypad == FALSE)
keypad(win, FALSE);
if (ch == ERR) {
*str = '\0';
return ERR;
}
*str = '\0';
T(("wgetnstr returns \"%s\"", _nc_visbuf(oldstr)));
return(OK);
}
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