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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
37 ** The routine wgetstr().
41 #include <curses.priv.h>
44 MODULE_ID("$Id: lib_getstr.c,v 1.24 2002/09/01 17:31:12 tom Exp $")
47 * This wipes out the last character, no matter whether it was a tab, control
48 * or other character, and handles reverse wraparound.
51 WipeOut(WINDOW *win, int y, int x, char *first, char *last, bool echoed)
62 while (win->_cury < y1
63 || (win->_cury == y1 && win->_curx < x1))
64 waddch(win, (chtype) ' ');
73 wgetnstr_events(WINDOW *win,
76 EVENTLIST_1st(_nc_eventlist * evl))
79 bool oldnl, oldecho, oldraw, oldcbreak;
86 T((T_CALLED("wgetnstr(%p,%p, %d)"), win, str, maxlen));
91 _nc_get_tty_mode(&buf);
96 oldcbreak = SP->_cbreak;
102 erasec = erasechar();
108 if (is_wintouched(win) || (win->_flags & _HASMOVED))
111 while ((ch = wgetch_events(win, evl)) != ERR) {
113 * Some terminals (the Wyse-50 is the most common) generate
114 * a \n from the down-arrow key. With this logic, it's the
115 * user's choice whether to set kcud=\n for wgetch();
116 * terminating *getstr() with \n should work either way.
121 || ch == KEY_ENTER) {
123 && win->_cury == win->_maxy
125 wechochar(win, (chtype) '\n');
132 if (ch == erasec || ch == KEY_LEFT || ch == KEY_BACKSPACE) {
134 str = WipeOut(win, y, x, oldstr, str, oldecho);
136 } else if (ch == killc) {
137 while (str > oldstr) {
138 str = WipeOut(win, y, x, oldstr, str, oldecho);
140 } else if (ch >= KEY_MIN
141 || (maxlen >= 0 && str - oldstr >= maxlen)) {
145 if (oldecho == TRUE) {
146 int oldy = win->_cury;
147 if (waddch(win, (chtype) ch) == ERR) {
149 * We can't really use the lower-right
150 * corner for input, since it'll mess
151 * up bookkeeping for erases.
153 win->_flags &= ~_WRAPPED;
154 waddch(win, (chtype) ' ');
155 str = WipeOut(win, y, x, oldstr, str, oldecho);
157 } else if (win->_flags & _WRAPPED) {
159 * If the last waddch forced a wrap &
160 * scroll, adjust our reference point
164 && oldy == win->_maxy
165 && win->_cury == win->_maxy) {
170 win->_flags &= ~_WRAPPED;
178 win->_flags &= ~_WRAPPED;
179 if (win->_cury < win->_maxy)
183 /* Restore with a single I/O call, to fix minor asymmetry between
189 SP->_cbreak = oldcbreak;
191 _nc_set_tty_mode(&buf);
201 T(("wgetnstr returns %s", _nc_visbuf(oldstr)));
206 #ifdef NCURSES_WGETCH_EVENTS
208 wgetnstr(WINDOW *win, char *str, int maxlen)
210 returnCode(wgetnstr_events(win,
213 EVENTLIST_1st((_nc_eventlist *) 0)));