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 #ifndef yarr_ASCIICType_h

 #define yarr_ASCIICType_h

 #include "assembler/wtf/Assertions.h"

 // The behavior of many of the functions in the <ctype.h> header is dependent

 // on the current locale. But in the WebKit project, all uses of those functions

 // are in code processing something that's not locale-specific. These equivalents

 // for some of the <ctype.h> functions are named more explicitly, not dependent

 // on the C library locale, and we should also optimize them as needed.

 // All functions return false or leave the character unchanged if passed a character

 // that is outside the range 0-7F. So they can be used on Unicode strings or

 // characters if the intent is to do processing only if the character is ASCII.

 namespace WTF {

     inline bool isASCII(char c) { return !(c & ~0x7F); }

     inline bool isASCII(unsigned short c) { return !(c & ~0x7F); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCII(wchar_t c) { return !(c & ~0x7F); }

 #endif

     inline bool isASCII(int c) { return !(c & ~0x7F); }

     inline bool isASCII(unsigned c) { return !(c & ~0x7F); }

     inline bool isASCIIAlpha(char c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }

     inline bool isASCIIAlpha(unsigned short c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIAlpha(wchar_t c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }

 #endif

     inline bool isASCIIAlpha(int c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }

     inline bool isASCIIAlpha(unsigned c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }

     inline bool isASCIIAlphanumeric(char c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }

     inline bool isASCIIAlphanumeric(unsigned short c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIAlphanumeric(wchar_t c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }

 #endif

     inline bool isASCIIAlphanumeric(int c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }

     inline bool isASCIIAlphanumeric(unsigned c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }

     inline bool isASCIIDigit(char c) { return (c >= '0') & (c <= '9'); }

     inline bool isASCIIDigit(unsigned short c) { return (c >= '0') & (c <= '9'); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIDigit(wchar_t c) { return (c >= '0') & (c <= '9'); }

 #endif

     inline bool isASCIIDigit(int c) { return (c >= '0') & (c <= '9'); }

     inline bool isASCIIDigit(unsigned c) { return (c >= '0') & (c <= '9'); }

     inline bool isASCIIHexDigit(char c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }

     inline bool isASCIIHexDigit(unsigned short c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIHexDigit(wchar_t c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }

 #endif

     inline bool isASCIIHexDigit(int c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }

     inline bool isASCIIHexDigit(unsigned c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }

     inline bool isASCIIOctalDigit(char c) { return (c >= '0') & (c <= '7'); }

     inline bool isASCIIOctalDigit(unsigned short c) { return (c >= '0') & (c <= '7'); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIOctalDigit(wchar_t c) { return (c >= '0') & (c <= '7'); }

 #endif

     inline bool isASCIIOctalDigit(int c) { return (c >= '0') & (c <= '7'); }

     inline bool isASCIIOctalDigit(unsigned c) { return (c >= '0') & (c <= '7'); }

     inline bool isASCIILower(char c) { return c >= 'a' && c <= 'z'; }

     inline bool isASCIILower(unsigned short c) { return c >= 'a' && c <= 'z'; }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIILower(wchar_t c) { return c >= 'a' && c <= 'z'; }

 #endif

     inline bool isASCIILower(int c) { return c >= 'a' && c <= 'z'; }

     inline bool isASCIILower(unsigned c) { return c >= 'a' && c <= 'z'; }

     inline bool isASCIIUpper(char c) { return c >= 'A' && c <= 'Z'; }

     inline bool isASCIIUpper(unsigned short c) { return c >= 'A' && c <= 'Z'; }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIUpper(wchar_t c) { return c >= 'A' && c <= 'Z'; }

 #endif

     inline bool isASCIIUpper(int c) { return c >= 'A' && c <= 'Z'; }

     inline bool isASCIIUpper(unsigned c) { return c >= 'A' && c <= 'Z'; }

     /*

         Statistics from a run of Apple's page load test for callers of isASCIISpace:

             character          count

             ---------          -----

             non-spaces         689383

         20  space              294720

         0A  \n                 89059

         09  \t                 28320

         0D  \r                 0

         0C  \f                 0

         0B  \v                 0

     */

     inline bool isASCIISpace(char c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }

     inline bool isASCIISpace(unsigned short c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIISpace(wchar_t c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }

 #endif

     inline bool isASCIISpace(int c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }

     inline bool isASCIISpace(unsigned c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }

     inline char toASCIILower(char c) { return c | ((c >= 'A' && c <= 'Z') << 5); }

     inline unsigned short toASCIILower(unsigned short c) { return c | ((c >= 'A' && c <= 'Z') << 5); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline wchar_t toASCIILower(wchar_t c) { return c | ((c >= 'A' && c <= 'Z') << 5); }

 #endif

     inline int toASCIILower(int c) { return c | ((c >= 'A' && c <= 'Z') << 5); }

     inline unsigned toASCIILower(unsigned c) { return c | ((c >= 'A' && c <= 'Z') << 5); }

     // FIXME: Why do these need static_cast?

     inline char toASCIIUpper(char c) { return static_cast<char>(c & ~((c >= 'a' && c <= 'z') << 5)); }

     inline unsigned short toASCIIUpper(unsigned short c) { return static_cast<unsigned short>(c & ~((c >= 'a' && c <= 'z') << 5)); }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline wchar_t toASCIIUpper(wchar_t c) { return static_cast<wchar_t>(c & ~((c >= 'a' && c <= 'z') << 5)); }

 #endif

     inline int toASCIIUpper(int c) { return static_cast<int>(c & ~((c >= 'a' && c <= 'z') << 5)); }

     inline unsigned toASCIIUpper(unsigned c) { return static_cast<unsigned>(c & ~((c >= 'a' && c <= 'z') << 5)); }

     inline int toASCIIHexValue(char c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }

     inline int toASCIIHexValue(unsigned short c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline int toASCIIHexValue(wchar_t c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }

 #endif

     inline int toASCIIHexValue(int c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }

     inline int toASCIIHexValue(unsigned c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }

     inline bool isASCIIPrintable(char c) { return c >= ' ' && c <= '~'; }

     inline bool isASCIIPrintable(unsigned short c) { return c >= ' ' && c <= '~'; }

 #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)

     inline bool isASCIIPrintable(wchar_t c) { return c >= ' ' && c <= '~'; }

 #endif

     inline bool isASCIIPrintable(int c) { return c >= ' ' && c <= '~'; }

     inline bool isASCIIPrintable(unsigned c) { return c >= ' ' && c <= '~'; }

 }

 using WTF::isASCII;

 using WTF::isASCIIAlpha;

 using WTF::isASCIIAlphanumeric;

 using WTF::isASCIIDigit;

 using WTF::isASCIIHexDigit;

 using WTF::isASCIILower;

 using WTF::isASCIIOctalDigit;

 using WTF::isASCIIPrintable;

 using WTF::isASCIISpace;

 using WTF::isASCIIUpper;

 using WTF::toASCIIHexValue;

 using WTF::toASCIILower;

 using WTF::toASCIIUpper;

 #endif /* yarr_ASCIICType_h */