mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
114 lines
2.1 KiB
C
114 lines
2.1 KiB
C
|
|
/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
|
|
* details. If they are missing then this copy is in violation of *
|
|
* the copyright conditions. */
|
|
|
|
/*
|
|
** lib_getstr.c
|
|
**
|
|
** The routine wgetstr().
|
|
**
|
|
*/
|
|
|
|
#include "curses.priv.h"
|
|
#include "unctrl.h"
|
|
|
|
inline void backspace(WINDOW *win)
|
|
{
|
|
mvwaddstr(curscr, win->_begy + win->_cury, win->_begx + win->_curx,
|
|
"\b \b");
|
|
waddstr(win, "\b \b");
|
|
fputs("\b \b", SP->_ofp);
|
|
fflush(SP->_ofp);
|
|
SP->_curscol--;
|
|
}
|
|
|
|
int wgetnstr(WINDOW *win, char *str, int maxlen)
|
|
{
|
|
bool oldnl, oldecho, oldraw, oldcbreak, oldkeypad;
|
|
char erasec;
|
|
char killc;
|
|
char *oldstr;
|
|
int ch;
|
|
|
|
T(("wgetnstr(%x,%x, %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;
|
|
|
|
vidattr(win->_attrs);
|
|
if (is_wintouched(win) || (win->_flags & _HASMOVED))
|
|
wrefresh(win);
|
|
|
|
while ((ch = wgetch(win)) != ERR) {
|
|
if (ch == '\n' || ch == '\r')
|
|
break;
|
|
if (ch == erasec || ch == KEY_LEFT || ch == KEY_BACKSPACE) {
|
|
if (str > oldstr) {
|
|
str--;
|
|
backspace(win);
|
|
}
|
|
} else if (ch == killc) {
|
|
while (str > oldstr) {
|
|
str--;
|
|
backspace(win);
|
|
}
|
|
} else if (maxlen >= 0 && str - oldstr >= maxlen) {
|
|
beep();
|
|
} else {
|
|
mvwaddstr(curscr, win->_begy + win->_cury,
|
|
win->_begx + win->_curx, unctrl(ch));
|
|
waddstr(win, unctrl(ch));
|
|
if (oldecho == TRUE) {
|
|
fputs(unctrl(ch), SP->_ofp);
|
|
fflush(SP->_ofp);
|
|
}
|
|
SP->_curscol++;
|
|
*str++ = ch;
|
|
}
|
|
}
|
|
|
|
win->_curx = 0;
|
|
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\"", visbuf(oldstr)));
|
|
|
|
return(OK);
|
|
}
|