? SCM_MAKE_ITAG8 ((scm_t_bits) (unsigned char) (x), scm_tc8_char) \
: SCM_MAKE_ITAG8 ((scm_t_bits) (x), scm_tc8_char))
+#define SCM_CODEPOINT_DOTTED_CIRCLE (0x25cc)
+#define SCM_CODEPOINT_SURROGATE_START (0xd800)
+#define SCM_CODEPOINT_SURROGATE_END (0xdfff)
#define SCM_CODEPOINT_MAX (0x10ffff)
#define SCM_IS_UNICODE_CHAR(c) \
- ((scm_t_wchar) (c) <= 0xd7ff \
- || ((scm_t_wchar) (c) >= 0xe000 && (scm_t_wchar) (c) <= SCM_CODEPOINT_MAX))
+ (((scm_t_wchar) (c) >= 0 \
+ && (scm_t_wchar) (c) < SCM_CODEPOINT_SURROGATE_START) \
+ || ((scm_t_wchar) (c) > SCM_CODEPOINT_SURROGATE_END \
+ && (scm_t_wchar) (c) <= SCM_CODEPOINT_MAX))
\f
SCM_API SCM scm_integer_to_char (SCM n);
SCM_API SCM scm_char_upcase (SCM chr);
SCM_API SCM scm_char_downcase (SCM chr);
+SCM_API SCM scm_char_titlecase (SCM chr);
+SCM_API SCM scm_char_general_category (SCM chr);
SCM_API scm_t_wchar scm_c_upcase (scm_t_wchar c);
SCM_API scm_t_wchar scm_c_downcase (scm_t_wchar c);
+SCM_API scm_t_wchar scm_c_titlecase (scm_t_wchar c);
SCM_INTERNAL const char *scm_i_charname (SCM chr);
SCM_INTERNAL SCM scm_i_charname_to_char (const char *charname,
size_t charname_len);