libncurses: Import https://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.5.tar.gz changes
Change-Id: I3433d30ca01359fd2e3623ede96b531f0b39cbfa
Signed-off-by: micky387 <mickaelsaibi@free.fr>
diff --git a/ncurses/base/lib_addch.c b/ncurses/base/lib_addch.c
index 4b16a47..a14bfd3 100644
--- a/ncurses/base/lib_addch.c
+++ b/ncurses/base/lib_addch.c
@@ -1,5 +1,6 @@
/****************************************************************************
- * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc. *
+ * Copyright 2019-2021,2022 Thomas E. Dickey *
+ * Copyright 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 *
@@ -36,7 +37,7 @@
#include <curses.priv.h>
#include <ctype.h>
-MODULE_ID("$Id: lib_addch.c,v 1.129 2014/08/16 20:41:04 tom Exp $")
+MODULE_ID("$Id: lib_addch.c,v 1.141 2022/06/12 15:16:41 tom Exp $")
static const NCURSES_CH_T blankchar = NewChar(BLANK_TEXT);
@@ -51,7 +52,7 @@
*/
/* Return bit mask for clearing color pair number if given ch has color */
-#define COLOR_MASK(ch) (~(attr_t)((ch) & A_COLOR ? A_COLOR : 0))
+#define COLOR_MASK(ch) (~(attr_t)(((ch) & A_COLOR) ? A_COLOR : 0))
static NCURSES_INLINE NCURSES_CH_T
render_char(WINDOW *win, NCURSES_CH_T ch)
@@ -117,14 +118,18 @@
#endif
static bool
-newline_forces_scroll(WINDOW *win, NCURSES_SIZE_T * ypos)
+newline_forces_scroll(WINDOW *win, NCURSES_SIZE_T *ypos)
{
bool result = FALSE;
- if (*ypos >= win->_regtop && *ypos == win->_regbottom) {
- *ypos = win->_regbottom;
- result = TRUE;
- } else {
+ if (*ypos >= win->_regtop && *ypos <= win->_regbottom) {
+ if (*ypos == win->_regbottom) {
+ *ypos = win->_regbottom;
+ result = TRUE;
+ } else if (*ypos < win->_maxy) {
+ *ypos = (NCURSES_SIZE_T) (*ypos + 1);
+ }
+ } else if (*ypos < win->_maxy) {
*ypos = (NCURSES_SIZE_T) (*ypos + 1);
}
return result;
@@ -135,7 +140,7 @@
* wrapped the cursor. We don't do anything with this flag except set it when
* wrapping, and clear it whenever we move the cursor. If we try to wrap at
* the lower-right corner of a window, we cannot move the cursor (since that
- * wouldn't be legal). So we return an error (which is what SVr4 does).
+ * wouldn't be legal). So we return an error (which is what SVr4 does).
* Unlike SVr4, we can successfully add a character to the lower-right corner
* (Solaris 2.6 does this also, however).
*/
@@ -203,6 +208,20 @@
WINDOW_EXT(win, addch_x) = x;
WINDOW_EXT(win, addch_y) = y;
+ /*
+ * If the background character is a wide-character, that may interfere with
+ * processing multibyte characters in this function.
+ */
+ if (!is8bits(CharOf(CHDEREF(ch)))) {
+ if (WINDOW_EXT(win, addch_used) != 0) {
+ /* discard the incomplete multibyte character */
+ WINDOW_EXT(win, addch_used) = 0;
+ TR(TRACE_VIRTPUT,
+ ("Alert discarded incomplete multibyte"));
+ }
+ return 1;
+ }
+
init_mb(state);
buffer[WINDOW_EXT(win, addch_used)] = (char) CharOf(CHDEREF(ch));
WINDOW_EXT(win, addch_used) += 1;
@@ -270,11 +289,11 @@
/* handle EILSEQ (i.e., when len >= -1) */
if (len == -1 && is8bits(CharOf(ch))) {
- int rc = OK;
const char *s = NCURSES_SP_NAME(unctrl)
(NCURSES_SP_ARGx (chtype) CharOf(ch));
if (s[1] != '\0') {
+ int rc = OK;
while (*s != '\0') {
rc = waddch(win, UChar(*s) | attr);
if (rc != OK)
@@ -299,23 +318,32 @@
* adjustments.
*/
if_WIDEC({
- int len = wcwidth(CharOf(ch));
+ int len = _nc_wacs_width(CharOf(ch));
int i;
int j;
- wchar_t *chars;
if (len == 0) { /* non-spacing */
if ((x > 0 && y >= 0)
|| (win->_maxx >= 0 && win->_cury >= 1)) {
- if (x > 0 && y >= 0)
- chars = (win->_line[y].text[x - 1].chars);
- else
- chars = (win->_line[y - 1].text[win->_maxx].chars);
+ NCURSES_CH_T *dst;
+ wchar_t *chars;
+ if (x > 0 && y >= 0) {
+ for (j = x - 1; j >= 0; --j) {
+ if (!isWidecExt(win->_line[y].text[j])) {
+ win->_curx = (NCURSES_SIZE_T) j;
+ break;
+ }
+ }
+ dst = &(win->_line[y].text[j]);
+ } else {
+ dst = &(win->_line[y - 1].text[win->_maxx]);
+ }
+ chars = dst->chars;
for (i = 0; i < CCHARW_MAX; ++i) {
if (chars[i] == 0) {
TR(TRACE_VIRTPUT,
- ("added non-spacing %d: %x",
- x, (int) CharOf(ch)));
+ ("adding non-spacing %s (level %d)",
+ _tracech_t(CHREF(ch)), i));
chars[i] = CharOf(ch);
break;
}
@@ -339,6 +367,7 @@
return ERR;
x = win->_curx;
y = win->_cury;
+ CHECK_POSITION(win, x, y);
line = win->_line + y;
}
/*
@@ -390,9 +419,9 @@
testwrapping:
);
- TR(TRACE_VIRTPUT, ("cell (%ld, %ld..%d) = %s",
- (long) win->_cury, (long) win->_curx, x - 1,
- _tracech_t(CHREF(ch))));
+ TR(TRACE_VIRTPUT, ("cell (%d, %d..%d) = %s",
+ win->_cury, win->_curx, x - 1,
+ _tracech_t(CHREF(line->text[win->_curx]))));
if (x > win->_maxx) {
return wrap_to_next_line(win);
@@ -427,7 +456,7 @@
s[1] == 0
)
|| (
- (isprint((int)t) && !iscntrl((int)t))
+ (isprint((int) t) && !iscntrl((int) t))
#if USE_WIDEC_SUPPORT
|| ((sp == 0 || !sp->_legacy_coding) &&
(WINDOW_EXT(win, addch_used)
@@ -443,6 +472,7 @@
*/
x = win->_curx;
y = win->_cury;
+ CHECK_POSITION(win, x, y);
switch (t) {
case '\t':