added simplified Unicode support for non-locale-enabled builds

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/include/unicode.h b/include/unicode.h
new file mode 100644
index 000000000..be64a50e2
--- /dev/null
+++ b/include/unicode.h
@@ -0,0 +1,57 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ */
+#ifndef UNICODE_H
+#define UNICODE_H 1
+
+#if !ENABLE_FEATURE_ASSUME_UNICODE
+
+# define check_unicode_in_env() ((void)0)
+
+#else
+
+# if ENABLE_LOCALE_SUPPORT
+
+#  include <wchar.h>
+#  include <wctype.h>
+#  define check_unicode_in_env() ((void)0)
+
+# else
+
+#  if !ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
+#   define check_unicode_in_env() ((void)0)
+#  else
+void check_unicode_in_env(void) FAST_FUNC;
+#  endif
+
+#  undef MB_CUR_MAX
+#  define MB_CUR_MAX 6
+
+/* Prevent name collisions */
+#  define wint_t    bb_wint_t
+#  define mbstate_t bb_mbstate_t
+#  define mbstowcs  bb_mbstowcs
+#  define wcstombs  bb_wcstombs
+#  define wcrtomb   bb_wcrtomb
+#  define iswspace  bb_iswspace
+#  define iswalnum  bb_iswalnum
+#  define iswpunct  bb_iswpunct
+
+typedef int32_t wint_t;
+typedef struct {
+	char bogus;
+} mbstate_t;
+
+size_t mbstowcs(wchar_t *dest, const char *src, size_t n) FAST_FUNC;
+size_t wcstombs(char *dest, const wchar_t *src, size_t n) FAST_FUNC;
+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;
+
+# endif
+
+#endif
+
+#endif