diff options
Diffstat (limited to 'unicode.h')
| -rw-r--r-- | unicode.h | 56 |
1 files changed, 44 insertions, 12 deletions
@@ -4,24 +4,56 @@ #include <string> #include <vector> -#define CODEPOINT_TYPE_UNIDENTIFIED 0 -#define CODEPOINT_TYPE_NUMBER 1 -#define CODEPOINT_TYPE_LETTER 2 -#define CODEPOINT_TYPE_SEPARATOR 3 -#define CODEPOINT_TYPE_ACCENT_MARK 4 -#define CODEPOINT_TYPE_PUNCTUATION 5 -#define CODEPOINT_TYPE_SYMBOL 6 -#define CODEPOINT_TYPE_CONTROL 7 +struct codepoint_flags { + enum { + UNDEFINED = 0x0001, + NUMBER = 0x0002, // regex: \p{N} + LETTER = 0x0004, // regex: \p{L} + SEPARATOR = 0x0008, // regex: \p{Z} + ACCENT_MARK = 0x0010, // regex: \p{M} + PUNCTUATION = 0x0020, // regex: \p{P} + SYMBOL = 0x0040, // regex: \p{S} + CONTROL = 0x0080, // regex: \p{C} + MASK_CATEGORIES = 0x00FF, + }; + + // codepoint type + uint16_t is_undefined : 1; + uint16_t is_number : 1; // regex: \p{N} + uint16_t is_letter : 1; // regex: \p{L} + uint16_t is_separator : 1; // regex: \p{Z} + uint16_t is_accent_mark : 1; // regex: \p{M} + uint16_t is_punctuation : 1; // regex: \p{P} + uint16_t is_symbol : 1; // regex: \p{S} + uint16_t is_control : 1; // regex: \p{C} + // helper flags + uint16_t is_whitespace : 1; // regex: \s + uint16_t is_lowercase : 1; + uint16_t is_uppercase : 1; + uint16_t is_nfd : 1; + + // decode from uint16 + inline codepoint_flags(const uint16_t flags=0) { + *reinterpret_cast<uint16_t*>(this) = flags; + } + + inline uint16_t as_uint() const { + return *reinterpret_cast<const uint16_t*>(this); + } + + inline uint16_t category_flag() const { + return this->as_uint() & MASK_CATEGORIES; + } +}; + std::string unicode_cpt_to_utf8(uint32_t cp); std::vector<uint32_t> unicode_cpts_from_utf8(const std::string & utf8); std::vector<uint32_t> unicode_cpts_normalize_nfd(const std::vector<uint32_t> & cpts); -int unicode_cpt_type(uint32_t cp); -int unicode_cpt_type(const std::string & utf8); - -bool unicode_cpt_is_whitespace(uint32_t cp); +codepoint_flags unicode_cpt_flags(const uint32_t cp); +codepoint_flags unicode_cpt_flags(const std::string & utf8); std::string unicode_byte_to_utf8(uint8_t byte); uint8_t unicode_utf8_to_byte(const std::string & utf8); |