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Showing content from https://clang.llvm.org/doxygen/CharInfo_8h_source.html below:

clang: include/clang/Basic/CharInfo.h Source File

9#ifndef LLVM_CLANG_BASIC_CHARINFO_H 10#define LLVM_CLANG_BASIC_CHARINFO_H 13#include "llvm/ADT/StringRef.h" 14#include "llvm/Support/Compiler.h" 15#include "llvm/Support/DataTypes.h" 42 return static_cast<unsigned char>

(

) <= 127;

45

LLVM_READNONE

inline bool isASCII

(

unsigned char c

) {

return c

<= 127; }

48

LLVM_READNONE

inline bool isASCII

(uint32_t

) {

return c

<= 127; }

49

LLVM_READNONE

inline bool isASCII

(int64_t

) {

return

0 <=

<= 127; }

54 bool

AllowDollar =

false

) {

55 using namespace

charinfo;

56 if

(

InfoTable

[

] & (CHAR_UPPER|CHAR_LOWER|CHAR_UNDER))

58 return

AllowDollar &&

'$'

;

63 static constexpr unsigned char

IDContinue[256] = {

64

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

65

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

66

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1,

67

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,

68

0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,

69

1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

70

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

71

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

72

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

73

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

74

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

75 return

IDContinue[

];

84 return

AllowDollar &&

'$'

;

92 using namespace

charinfo;

93 return

(

InfoTable

[

] & (CHAR_HORZ_WS|CHAR_SPACE)) != 0;

100 using namespace

charinfo;

101 return

(

InfoTable

[

] & CHAR_VERT_WS) != 0;

109 using namespace

charinfo;

110 return

(

InfoTable

[

] & (CHAR_HORZ_WS|CHAR_VERT_WS|CHAR_SPACE)) != 0;

114

LLVM_READONLY

inline bool isDigit

(

unsigned char c

) {

115 using namespace

charinfo;

121 using namespace

charinfo;

127 using namespace

charinfo;

132

LLVM_READONLY

inline bool isLetter

(

unsigned char c

) {

133 using namespace

charinfo;

134 return

(

InfoTable

[

] & (CHAR_UPPER|CHAR_LOWER)) != 0;

139 using namespace

charinfo;

140 return

(

InfoTable

[

] & (CHAR_DIGIT|CHAR_UPPER|CHAR_LOWER)) != 0;

145 using namespace

charinfo;

146 return

(

InfoTable

[

] & (CHAR_DIGIT|CHAR_XLETTER)) != 0;

153 using namespace

charinfo;

154 return

(

InfoTable

[

] & (CHAR_UNDER | CHAR_PERIOD | CHAR_PUNCT)) != 0;

161 using namespace

charinfo;

162 return

(

InfoTable

[

] & (CHAR_UPPER | CHAR_LOWER | CHAR_PERIOD | CHAR_PUNCT |

163

CHAR_DIGIT | CHAR_UNDER | CHAR_SPACE)) != 0;

169 using namespace

charinfo;

171

(CHAR_UPPER|CHAR_LOWER|CHAR_DIGIT|CHAR_UNDER|CHAR_PERIOD)) != 0;

176 using namespace

charinfo;

177 return

(

InfoTable

[

] & (CHAR_UPPER | CHAR_LOWER | CHAR_PERIOD | CHAR_DIGIT |

178

CHAR_UNDER | CHAR_PUNCT)) != 0 &&

179 c

'('

')'

'\\'

;

190template

<EscapeChar Opt,

class

CharT>

226 return c

'a'

'A'

;

235 return c

'A'

'a'

;

245 bool

AllowDollar =

false

) {

249 for

(StringRef::iterator I = S.begin(),

= S.end(); I !=

; ++I)

static constexpr OptTable::Info InfoTable[]

Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified.

__device__ __2f16 float c

const uint16_t InfoTable[256]

The JSON file list parser is used to communicate input to InstallAPI.

LLVM_READNONE bool isASCII(char c)

Returns true if a byte is an ASCII character.

LLVM_READONLY bool isVerticalWhitespace(unsigned char c)

Returns true if this character is vertical ASCII whitespace: '\n', '\r'.

LLVM_READONLY bool isPrintable(unsigned char c)

Return true if this character is an ASCII printable character; that is, a character that should take ...

LLVM_READONLY bool isAsciiIdentifierContinue(unsigned char c)

LLVM_READONLY auto escapeCStyle(CharT Ch) -> StringRef

Return C-style escaped string for special characters, or an empty string if there is no such mapping.

LLVM_READONLY char toLowercase(char c)

Converts the given ASCII character to its lowercase equivalent.

LLVM_READONLY bool isUppercase(unsigned char c)

Return true if this character is an uppercase ASCII letter: [A-Z].

LLVM_READONLY bool isValidAsciiIdentifier(StringRef S, bool AllowDollar=false)

Return true if this is a valid ASCII identifier.

LLVM_READONLY bool isLetter(unsigned char c)

Return true if this character is an ASCII letter: [a-zA-Z].

LLVM_READONLY bool isAlphanumeric(unsigned char c)

Return true if this character is an ASCII letter or digit: [a-zA-Z0-9].

LLVM_READONLY bool isHorizontalWhitespace(unsigned char c)

Returns true if this character is horizontal ASCII whitespace: ' ', '\t', '\f', '\v'.

LLVM_READONLY bool isRawStringDelimBody(unsigned char c)

Return true if this is the body character of a C++ raw string delimiter.

LLVM_READONLY bool isDigit(unsigned char c)

Return true if this character is an ASCII digit: [0-9].

LLVM_READONLY bool isLowercase(unsigned char c)

Return true if this character is a lowercase ASCII letter: [a-z].

LLVM_READONLY bool isWhitespace(unsigned char c)

Return true if this character is horizontal or vertical ASCII whitespace: ' ', '\t',...

LLVM_READONLY bool isPreprocessingNumberBody(unsigned char c)

Return true if this is the body character of a C preprocessing number, which is [a-zA-Z0-9_.

LLVM_READONLY char toUppercase(char c)

Converts the given ASCII character to its uppercase equivalent.

LLVM_READONLY bool isHexDigit(unsigned char c)

Return true if this character is an ASCII hex digit: [0-9a-fA-F].

LLVM_READONLY bool isPunctuation(unsigned char c)

Return true if this character is an ASCII punctuation character.

LLVM_READONLY bool isAsciiIdentifierStart(unsigned char c, bool AllowDollar=false)

Returns true if this is a valid first character of a C identifier, which is [a-zA-Z_].

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