/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2010,2011 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> *
+ * *
+ * Rewritten 2001-2004 to support wide-characters by *
+ * Sven Verdoolaege *
+ * Thomas Dickey *
****************************************************************************/
/*
#include <curses.priv.h>
-MODULE_ID("$Id: lib_addstr.c,v 1.34 2002/10/06 00:25:25 tom Exp $")
-
-#if USE_WIDEC_SUPPORT
-#define CONV_DATA mbstate_t state; wchar_t cached; int clen = 0
-#define CONV_INIT memset (&state, '\0', sizeof (state)); cached = (wchar_t)WEOF
-#define NEXT_CHAR(s,ch, n) \
- { \
- int len, i = 0; \
- memset(&ch, 0, sizeof(cchar_t)); \
- if (cached != (wchar_t) WEOF) { \
- ch.chars[i++] = cached; \
- cached = (wchar_t) WEOF; \
- n -= clen; \
- s += clen; \
- } \
- for (; i < CCHARW_MAX && n > 0; ++i) { \
- if ((len = mbrtowc(&ch.chars[i], s, n, &state)) < 0) { \
- code = ERR; \
- break; \
- } \
- if (i == 0 || wcwidth(ch.chars[i]) == 0) { \
- n -= len; \
- s += len; \
- } else { \
- cached = ch.chars[i]; \
- clen = len; \
- ch.chars[i] = L'\0'; \
- break; \
- } \
- } \
- if (code == ERR) \
- break; \
- }
-#else
-#define CONV_DATA
-#define CONV_INIT
-#define NEXT_CHAR(s,ch, n) \
- ch = *s++; \
- --n
-#endif
+MODULE_ID("$Id: lib_addstr.c,v 1.52 2011/05/28 23:02:09 tom Exp $")
NCURSES_EXPORT(int)
waddnstr(WINDOW *win, const char *astr, int n)
{
- unsigned const char *str = (unsigned const char *) astr;
+ const char *str = astr;
int code = ERR;
- CONV_DATA;
- T((T_CALLED("waddnstr(%p,%s,%d)"), win, _nc_visbufn(astr, n), n));
+ T((T_CALLED("waddnstr(%p,%s,%d)"), (void *) win, _nc_visbufn(astr, n), n));
if (win && (str != 0)) {
- TR(TRACE_VIRTPUT | TRACE_ATTRS, ("... current %s", _traceattr(win->_attrs)));
+ TR(TRACE_VIRTPUT | TRACE_ATTRS,
+ ("... current %s", _traceattr(WINDOW_ATTRS(win))));
code = OK;
if (n < 0)
n = (int) strlen(astr);
TR(TRACE_VIRTPUT, ("str is not null, length = %d", n));
- CONV_INIT;
- while ((n > 0) && (*str != '\0')) {
+ while ((n-- > 0) && (*str != '\0')) {
NCURSES_CH_T ch;
- TR(TRACE_VIRTPUT, ("*str = %#x", *str));
- NEXT_CHAR(str, ch, n);
+ TR(TRACE_VIRTPUT, ("*str = %#o", UChar(*str)));
+ SetChar(ch, UChar(*str++), A_NORMAL);
if (_nc_waddch_nosync(win, ch) == ERR) {
code = ERR;
break;
}
NCURSES_EXPORT(int)
-waddchnstr(WINDOW *win, const chtype * astr, int n)
+waddchnstr(WINDOW *win, const chtype *astr, int n)
{
- NCURSES_SIZE_T y = win->_cury;
- NCURSES_SIZE_T x = win->_curx;
+ NCURSES_SIZE_T y, x;
int code = OK;
+ int i;
struct ldat *line;
- T((T_CALLED("waddchnstr(%p,%p,%d)"), win, astr, n));
+ T((T_CALLED("waddchnstr(%p,%p,%d)"), (void *) win, (const void *) astr, n));
if (!win)
returnCode(ERR);
+ y = win->_cury;
+ x = win->_curx;
if (n < 0) {
const chtype *str;
n = 0;
returnCode(code);
line = &(win->_line[y]);
-#if USE_WIDEC_SUPPORT
- {
- int i;
- for (i = 0; i < n; ++i)
- SetChar(line->text[i + x], ChCharOf(astr[i]), ChAttrOf(astr[i]));
+ for (i = 0; i < n && ChCharOf(astr[i]) != '\0'; ++i) {
+ SetChar2(line->text[i + x], astr[i]);
}
-#else
- memcpy(line->text + x, astr, n * sizeof(*astr));
-#endif
- CHANGED_RANGE(line, x, x + n - 1);
+ CHANGED_RANGE(line, x, (NCURSES_SIZE_T) (x + n - 1));
_nc_synchook(win);
returnCode(code);
#if USE_WIDEC_SUPPORT
-int
-_nc_wchstrlen(const cchar_t * s)
+NCURSES_EXPORT(int)
+_nc_wchstrlen(const cchar_t *s)
{
int result = 0;
- while (CharOf(s[result]) != L'\0') {
- result++;
+ if (s != 0) {
+ while (CharOf(s[result]) != L'\0') {
+ result++;
+ }
}
return result;
}
NCURSES_EXPORT(int)
-wadd_wchnstr(WINDOW *win, const cchar_t * const astr, int n)
+wadd_wchnstr(WINDOW *win, const cchar_t *astr, int n)
{
- NCURSES_SIZE_T y = win->_cury;
- NCURSES_SIZE_T x = win->_curx;
+ static const NCURSES_CH_T blank = NewChar(BLANK_TEXT);
+ NCURSES_SIZE_T y;
+ NCURSES_SIZE_T x;
int code = OK;
struct ldat *line;
- int i, start, end;
+ int i, j, start, len, end;
- T((T_CALLED("wadd_wchnstr(%p,%s,%d)"), win, _nc_viscbuf(astr, n), n));
+ T((T_CALLED("wadd_wchnstr(%p,%s,%d)"),
+ (void *) win,
+ _nc_viscbuf(astr, n),
+ n));
if (!win)
returnCode(ERR);
+ y = win->_cury;
+ x = win->_curx;
if (n < 0) {
n = _nc_wchstrlen(astr);
}
line = &(win->_line[y]);
start = x;
end = x + n - 1;
- if (isnac(line->text[x])) {
- line->text[x - 1] = win->_nc_bkgd;
- --start;
+
+ /*
+ * Reset orphaned cells of multi-column characters that extend up to the
+ * new string's location to blanks.
+ */
+ if (x > 0 && isWidecExt(line->text[x])) {
+ for (i = 0; i <= x; ++i) {
+ if (!isWidecExt(line->text[x - i])) {
+ /* must be isWidecBase() */
+ start -= i;
+ while (i > 0) {
+ line->text[x - i--] = _nc_render(win, blank);
+ }
+ break;
+ }
+ }
}
- for (i = 0; i < n && x <= win->_maxx; ++i) {
- line->text[x++] = astr[i];
- if (wcwidth(CharOf(astr[i])) > 1) {
- if (x <= win->_maxx)
- AddAttr(line->text[x++], WA_NAC);
- else
- line->text[x - 1] = win->_nc_bkgd;
+
+ /*
+ * Copy the new string to the window.
+ */
+ for (i = 0; i < n && CharOf(astr[i]) != L'\0' && x <= win->_maxx; ++i) {
+ if (isWidecExt(astr[i]))
+ continue;
+
+ len = wcwidth(CharOf(astr[i]));
+
+ if (x + len - 1 <= win->_maxx) {
+ line->text[x] = _nc_render(win, astr[i]);
+ if (len > 1) {
+ for (j = 0; j < len; ++j) {
+ if (j != 0) {
+ line->text[x + j] = line->text[x];
+ }
+ SetWidecExt(line->text[x + j], j);
+ }
+ }
+ x = (NCURSES_SIZE_T) (x + len);
+ end += len - 1;
+ } else {
+ break;
}
}
- if (x <= win->_maxx && isnac(line->text[x])) {
- line->text[x] = win->_nc_bkgd;
+
+ /*
+ * Set orphaned cells of multi-column characters which lie after the new
+ * string to blanks.
+ */
+ while (x <= win->_maxx && isWidecExt(line->text[x])) {
+ line->text[x] = _nc_render(win, blank);
++end;
+ ++x;
}
CHANGED_RANGE(line, start, end);
}
NCURSES_EXPORT(int)
-waddnwstr(WINDOW *win, const wchar_t * str, int n)
+waddnwstr(WINDOW *win, const wchar_t *str, int n)
{
int code = ERR;
- int i;
- T((T_CALLED("waddnwstr(%p,%s,%d)"), win, _nc_viswbufn(str,n), n));
+ T((T_CALLED("waddnwstr(%p,%s,%d)"), (void *) win, _nc_viswbufn(str, n), n));
if (win && (str != 0)) {
- TR(TRACE_VIRTPUT | TRACE_ATTRS, ("... current %s", _traceattr(win->_attrs)));
+ TR(TRACE_VIRTPUT | TRACE_ATTRS,
+ ("... current %s", _traceattr(WINDOW_ATTRS(win))));
code = OK;
if (n < 0)
n = (int) wcslen(str);
TR(TRACE_VIRTPUT, ("str is not null, length = %d", n));
while ((n-- > 0) && (*str != L('\0'))) {
NCURSES_CH_T ch;
- TR(TRACE_VIRTPUT, ("*str[0] = %#lx", *str));
+ TR(TRACE_VIRTPUT, ("*str[0] = %#lx", (unsigned long) *str));
SetChar(ch, *str++, A_NORMAL);
- i = 1;
- while (i < CCHARW_MAX && n > 0 && (*str != L('\0'))
- && wcwidth(*str) == 0) {
- TR(TRACE_VIRTPUT, ("*str[%d] = %#lx", i, *str));
- ch.chars[i++] = *str++;
- --n;
- }
- if (_nc_waddch_nosync(win, ch) == ERR) {
+ if (wadd_wch(win, &ch) == ERR) {
code = ERR;
break;
}
projects / ncurses.git / blobdiff