/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
#include <curses.priv.h>
-MODULE_ID("$Id: lib_instr.c,v 1.12 2002/10/05 23:23:05 tom Exp $")
+MODULE_ID("$Id: lib_instr.c,v 1.23 2017/04/29 21:16:20 tom Exp $")
NCURSES_EXPORT(int)
winnstr(WINDOW *win, char *str, int n)
{
- int i = 0, row, col;
+ int i = 0;
- T((T_CALLED("winnstr(%p,%p,%d)"), win, str, n));
+ T((T_CALLED("winnstr(%p,%p,%d)"), (void *) win, str, n));
- if (!str)
- returnCode(0);
-
- if (win) {
- getyx(win, row, col);
+ if (!win || !str) {
+ i = ERR;
+ } else {
+ int row = win->_cury;
+ int col = win->_curx;
+ NCURSES_CH_T *text = win->_line[row].text;
if (n < 0)
- n = win->_maxx - win->_curx + 1;
+ n = win->_maxx - col + 1;
for (; i < n;) {
- str[i++] = CharOf(win->_line[row].text[col]);
+#if USE_WIDEC_SUPPORT
+ cchar_t *cell = &(text[col]);
+ attr_t attrs;
+ NCURSES_PAIRS_T pair;
+ mbstate_t state;
+ char *tmp;
+
+ if (!isWidecExt(*cell)) {
+ wchar_t *wch;
+ int n2;
+
+ n2 = getcchar(cell, 0, 0, 0, 0);
+ if (n2 > 0
+ && (wch = typeCalloc(wchar_t, (unsigned) n2 + 1)) != 0) {
+ bool done = FALSE;
+
+ if (getcchar(cell, wch, &attrs, &pair, 0) == OK) {
+ size_t n3;
+
+ init_mb(state);
+ n3 = wcstombs(0, wch, (size_t) 0);
+ if (!isEILSEQ(n3) && (n3 != 0)) {
+ size_t need = n3 + 10 + (size_t) i;
+ int have = (int) n3 + i;
+
+ /* check for loop-done as well as overflow */
+ if (have > n || (int) need <= 0) {
+ done = TRUE;
+ } else if ((tmp = typeCalloc(char, need)) == 0) {
+ done = TRUE;
+ } else {
+ size_t i3;
+
+ init_mb(state);
+ wcstombs(tmp, wch, n3);
+ for (i3 = 0; i3 < n3; ++i3)
+ str[i++] = tmp[i3];
+ free(tmp);
+ }
+ }
+ }
+ free(wch);
+ if (done)
+ break;
+ }
+ }
+#else
+ str[i++] = (char) CharOf(text[col]);
+#endif
if (++col > win->_maxx) {
- col = 0;
- if (++row > win->_maxy)
- break;
+ break;
}
}
+ str[i] = '\0'; /* SVr4 does not seem to count the null */
}
- str[i] = '\0'; /* SVr4 does not seem to count the null */
T(("winnstr returns %s", _nc_visbuf(str)));
returnCode(i);
}