static NCURSES_INLINE int wadd_wch_nosync(WINDOW *win, cchar_t ch) /* the workhorse function -- add a character to the given window */ { NCURSES_SIZE_T x, y; wchar_t *s; int tabsize = 8; #if USE_REENTRANT SCREEN *sp = _nc_screen_of(win); #endif /* * If we are using the alternate character set, forget about locale. * Otherwise, if the locale claims the code is printable, treat it that * way. */ if ((AttrOf(ch) & A_ALTCHARSET) || iswprint((wint_t) CharOf(ch))) return wadd_wch_literal(win, ch); /* * Handle carriage control and other codes that are not printable, or are * known to expand to more than one character according to unctrl(). */ x = win->_curx; y = win->_cury; switch (CharOf(ch)) { case '\t': #if USE_REENTRANT tabsize = *ptrTabsize(sp); #else tabsize = TABSIZE; #endif x = (NCURSES_SIZE_T) (x + (tabsize - (x % tabsize))); /* * Space-fill the tab on the bottom line so that we'll get the * "correct" cursor position. */ if ((!win->_scroll && (y == win->_regbottom)) || (x <= win->_maxx)) { cchar_t blank = blankchar; AddAttr(blank, AttrOf(ch)); while (win->_curx < x) { if (wadd_wch_literal(win, blank) == ERR) return (ERR); } break; } else { wclrtoeol(win); win->_flags |= _WRAPPED; if (newline_forces_scroll(win, &y)) { x = win->_maxx; if (win->_scroll) { scroll(win); x = 0; } } else { x = 0; } } break; case '\n': wclrtoeol(win); if (newline_forces_scroll(win, &y)) { if (win->_scroll) scroll(win); else return (ERR); } /* FALLTHRU */ case '\r': x = 0; win->_flags &= ~_WRAPPED; break; case '\b': if (x == 0) return (OK); x--; win->_flags &= ~_WRAPPED; break; default: if ((s = wunctrl(&ch)) != 0) { while (*s) { cchar_t sch; SetChar(sch, *s++, AttrOf(ch)); if_EXT_COLORS(SetPair(sch, GetPair(ch))); if (wadd_wch_literal(win, sch) == ERR) return ERR; } return OK; } return ERR; } win->_curx = x; win->_cury = y; return OK; }
_nc_ptr_Tabsize(SCREEN *sp) { return ptrTabsize(sp); }