ncursesw-morphos/ncurses/widechar/charable.c
Thomas E. Dickey 7c4bc0fa99 ncurses 5.6 - patch 20080705
+ use NCURSES_MOUSE_MASK() in definition of BUTTON_RELEASE(), etc., to
  make those work properly with the "--enable-ext-mouse" configuration
  (cf: 20050205).
+ improve documentation of build-cc options in INSTALL.
+ work-around a bug in gcc 4.2.4 on AIX, which does not pass the
  -static/-dynamic flags properly to linker, causing test/bs to
  not link.
2008-07-06 00:36:01 +00:00

81 lines
3.0 KiB
C

/****************************************************************************
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/*
** Support functions for wide/narrow conversion.
*/
#include <curses.priv.h>
MODULE_ID("$Id: charable.c,v 1.5 2008/07/05 20:51:41 tom Exp $")
NCURSES_EXPORT(bool) _nc_is_charable(wchar_t ch)
{
bool result;
#if HAVE_WCTOB
result = (wctob((wint_t) ch) == (int) ch);
#else
result = (_nc_to_char(ch) >= 0);
#endif
return result;
}
NCURSES_EXPORT(int) _nc_to_char(wint_t ch)
{
int result;
#if HAVE_WCTOB
result = wctob(ch);
#elif HAVE_WCTOMB
char temp[MB_LEN_MAX];
result = wctomb(temp, ch);
if (strlen(temp) == 1)
result = UChar(temp[0]);
else
result = -1;
#endif
return result;
}
NCURSES_EXPORT(wint_t) _nc_to_widechar(int ch)
{
wint_t result;
#if HAVE_BTOWC
result = btowc(ch);
#elif HAVE_MBTOWC
wchar_t convert;
char temp[2];
temp[0] = ch;
temp[1] = '\0';
if (mbtowc(&convert, temp, 1) >= 0)
result = convert;
else
result = WEOF;
#endif
return result;
}