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-rw-r--r--readline/rlmbutil.h49
1 files changed, 48 insertions, 1 deletions
diff --git a/readline/rlmbutil.h b/readline/rlmbutil.h
index dab954fad90..cf6ef9e4dbe 100644
--- a/readline/rlmbutil.h
+++ b/readline/rlmbutil.h
@@ -45,12 +45,28 @@
#if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H)
# include <wchar.h>
# include <wctype.h>
-# if defined (HAVE_MBSTATE_T) && defined (HAVE_MBSRTOWCS)
+# if defined (HAVE_MBSTATE_T) && defined (HAVE_MBSRTOWCS) && defined (HAVE_MBRTOWC) && defined (HAVE_MBRLEN) && defined (HAVE_WCWIDTH)
/* system is supposed to support XPG5 */
# define HANDLE_MULTIBYTE 1
# endif
#endif
+/* If we don't want multibyte chars even on a system that supports them, let
+ the configuring user turn multibyte support off. */
+#if defined (NO_MULTIBYTE_SUPPORT)
+# undef HANDLE_MULTIBYTE
+#endif
+
+/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
+#if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
+# define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
+# define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
+# define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
+# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
+# define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
+# define mbstate_t int
+#endif
+
/* Make sure MB_LEN_MAX is at least 16 on systems that claim to be able to
handle multibyte chars (some systems define MB_LEN_MAX as 1) */
#ifdef HANDLE_MULTIBYTE
@@ -91,6 +107,24 @@ extern int _rl_read_mbstring PARAMS((int, char *, int));
extern int _rl_is_mbchar_matched PARAMS((char *, int, int, char *, int));
+extern wchar_t _rl_char_value PARAMS((char *, int));
+extern int _rl_walphabetic PARAMS((wchar_t));
+
+#define _rl_to_wupper(wc) (iswlower (wc) ? towupper (wc) : (wc))
+#define _rl_to_wlower(wc) (iswupper (wc) ? towlower (wc) : (wc))
+
+#define MB_NEXTCHAR(b,s,c,f) \
+ ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
+ ? _rl_find_next_mbchar ((b), (s), (c), (f)) \
+ : ((s) + (c)))
+#define MB_PREVCHAR(b,s,f) \
+ ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
+ ? _rl_find_prev_mbchar ((b), (s), (f)) \
+ : ((s) - 1))
+
+#define MB_INVALIDCH(x) ((x) == (size_t)-1 || (x) == (size_t)-2)
+#define MB_NULLWCH(x) ((x) == 0)
+
#else /* !HANDLE_MULTIBYTE */
#undef MB_LEN_MAX
@@ -102,6 +136,19 @@ extern int _rl_is_mbchar_matched PARAMS((char *, int, int, char *, int));
#define _rl_find_prev_mbchar(b, i, f) (((i) == 0) ? (i) : ((i) - 1))
#define _rl_find_next_mbchar(b, i1, i2, f) ((i1) + (i2))
+#define _rl_char_value(buf,ind) ((buf)[(ind)])
+
+#define _rl_walphabetic(c) (rl_alphabetic (c))
+
+#define _rl_to_wupper(c) (_rl_to_upper (c))
+#define _rl_to_wlower(c) (_rl_to_lower (c))
+
+#define MB_NEXTCHAR(b,s,c,f) ((s) + (c))
+#define MB_PREVCHAR(b,s,f) ((s) - 1)
+
+#define MB_INVALIDCH(x) (0)
+#define MB_NULLWCH(x) (0)
+
#endif /* !HANDLE_MULTIBYTE */
extern int rl_byte_oriented;