Update docs/tcp.txt

[oweals/busybox.git] / include / unicode.h

diff --git a/include/unicode.h b/include/unicode.h
index 7ab044e17cbf998d66750dabddad33099e225c8f..0317a215171e9f5299c1b0384f0e32a3d6ca6709 100644 (file)
--- a/include/unicode.h
+++ b/include/unicode.h
@@ -1,10 +1,15 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 #ifndef UNICODE_H
 #define UNICODE_H 1
 
+#if ENABLE_UNICODE_USING_LOCALE
+# include <wchar.h>
+# include <wctype.h>
+#endif
+
 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
 
 enum {
@@ -13,30 +18,57 @@ enum {
        UNICODE_ON = 2,
 };
 
-#if !ENABLE_FEATURE_ASSUME_UNICODE
+#define unicode_bidi_isrtl(wc) 0
+#define unicode_bidi_is_neutral_wchar(wc) (wc <= 126 && !isalpha(wc))
 
-# define unicode_strlen(string) strlen(string)
+#if !ENABLE_UNICODE_SUPPORT
+
+# define unicode_strlen(string)   strlen(string)
+# define unicode_strwidth(string) strlen(string)
 # define unicode_status UNICODE_OFF
 # define init_unicode() ((void)0)
+# define reinit_unicode(LANG) ((void)0)
 
 #else
 
+# if CONFIG_LAST_SUPPORTED_WCHAR < 126 || CONFIG_LAST_SUPPORTED_WCHAR >= 0x30000
+#  undef CONFIG_LAST_SUPPORTED_WCHAR
+#  define CONFIG_LAST_SUPPORTED_WCHAR 0x2ffff
+# endif
+
+# if CONFIG_LAST_SUPPORTED_WCHAR < 0x300
+#  undef ENABLE_UNICODE_COMBINING_WCHARS
+#  define ENABLE_UNICODE_COMBINING_WCHARS 0
+# endif
+
+# if CONFIG_LAST_SUPPORTED_WCHAR < 0x1100
+#  undef ENABLE_UNICODE_WIDE_WCHARS
+#  define ENABLE_UNICODE_WIDE_WCHARS 0
+# endif
+
+# if CONFIG_LAST_SUPPORTED_WCHAR < 0x590
+#  undef  ENABLE_UNICODE_BIDI_SUPPORT
+#  define ENABLE_UNICODE_BIDI_SUPPORT 0
+# endif
+
+/* Number of unicode chars. Falls back to strlen() on invalid unicode */
 size_t FAST_FUNC unicode_strlen(const char *string);
+/* Width on terminal */
+size_t FAST_FUNC unicode_strwidth(const char *string);
 enum {
        UNI_FLAG_PAD = (1 << 0),
 };
 //UNUSED: unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src);
 //UNUSED: char* FAST_FUNC unicode_conv_to_printable2(uni_stat_t *stats, const char *src, unsigned width, int flags);
 char* FAST_FUNC unicode_conv_to_printable(uni_stat_t *stats, const char *src);
-char* FAST_FUNC unicode_conv_to_printable_maxwidth(uni_stat_t *stats, const char *src, unsigned maxwidth);
-char* FAST_FUNC unicode_conv_to_printable_fixedwidth(uni_stat_t *stats, const char *src, unsigned width);
+//UNUSED: char* FAST_FUNC unicode_conv_to_printable_maxwidth(uni_stat_t *stats, const char *src, unsigned maxwidth);
+char* FAST_FUNC unicode_conv_to_printable_fixedwidth(/*uni_stat_t *stats,*/ const char *src, unsigned width);
 
-# if ENABLE_LOCALE_SUPPORT
+# if ENABLE_UNICODE_USING_LOCALE
 
-#  include <wchar.h>
-#  include <wctype.h>
 extern uint8_t unicode_status;
 void init_unicode(void) FAST_FUNC;
+void reinit_unicode(const char *LANG) FAST_FUNC;
 
 # else
 
@@ -45,9 +77,11 @@ void init_unicode(void) FAST_FUNC;
 #  if !ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
 #   define unicode_status UNICODE_ON
 #   define init_unicode() ((void)0)
+#   define reinit_unicode(LANG) ((void)0)
 #  else
 extern uint8_t unicode_status;
 void init_unicode(void) FAST_FUNC;
+void reinit_unicode(const char *LANG) FAST_FUNC;
 #  endif
 
 #  undef MB_CUR_MAX
@@ -75,11 +109,20 @@ size_t wcrtomb(char *s, wchar_t wc, mbstate_t *ps) FAST_FUNC;
 int iswspace(wint_t wc) FAST_FUNC;
 int iswalnum(wint_t wc) FAST_FUNC;
 int iswpunct(wint_t wc) FAST_FUNC;
+int wcwidth(unsigned ucs) FAST_FUNC;
+#  if ENABLE_UNICODE_BIDI_SUPPORT
+#   undef unicode_bidi_isrtl
+int unicode_bidi_isrtl(wint_t wc) FAST_FUNC;
+#   if ENABLE_UNICODE_NEUTRAL_TABLE
+#    undef unicode_bidi_is_neutral_wchar
+int unicode_bidi_is_neutral_wchar(wint_t wc) FAST_FUNC;
+#   endif
+#  endif
 
 
-# endif /* !LOCALE_SUPPORT */
+# endif /* !UNICODE_USING_LOCALE */
 
-#endif /* FEATURE_ASSUME_UNICODE */
+#endif /* UNICODE_SUPPORT */
 
 POP_SAVED_FUNCTION_VISIBILITY