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📄 AArch64SVEACLETypes.def(7.09 KB)
📄 ABI.h(5.95 KB)
📄 ASTNode.td(120 B)
📄 AddressSpaces.h(2.59 KB)
📄 AlignedAllocation.h(1.38 KB)
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📄 Attr.td(122.78 KB)
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📄 AttributeCommonInfo.h(7.02 KB)
📄 Attributes.h(1.35 KB)
📄 BitmaskEnum.h(749 B)
📄 Builtins.def(71.64 KB)
📄 Builtins.h(9.13 KB)
📄 BuiltinsAArch64.def(14.31 KB)
📄 BuiltinsAMDGPU.def(13.1 KB)
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📄 BuiltinsBPF.def(1016 B)
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📄 BuiltinsHexagonDep.def(117.26 KB)
📄 BuiltinsHexagonMapCustomDep.def(8.56 KB)
📄 BuiltinsLe64.def(728 B)
📄 BuiltinsMips.def(35.51 KB)
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📄 BuiltinsNVPTX.def(27.63 KB)
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📄 BuiltinsSVE.def(786 B)
📄 BuiltinsSystemZ.def(19.7 KB)
📄 BuiltinsWebAssembly.def(10.17 KB)
📄 BuiltinsX86.def(140.49 KB)
📄 BuiltinsX86_64.def(6.79 KB)
📄 BuiltinsXCore.def(846 B)
📄 CapturedStmt.h(662 B)
📄 CharInfo.h(6.52 KB)
📄 CodeGenOptions.def(21.65 KB)
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📄 CommentNodes.td(1.04 KB)
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📄 Cuda.h(2.3 KB)
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📄 Diagnostic.h(55.73 KB)
📄 Diagnostic.td(5.29 KB)
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📄 DiagnosticASTKinds.td(29.35 KB)
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📄 DiagnosticFrontend.h(933 B)
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📄 DiagnosticGroups.td(59.71 KB)
📄 DiagnosticIDs.h(12.83 KB)
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📄 DiagnosticLexKinds.td(38.36 KB)
📄 DiagnosticOptions.def(4.58 KB)
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📄 DiagnosticSemaKinds.td(546.17 KB)
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📄 ExceptionSpecificationType.h(2.48 KB)
📄 ExpressionTraits.h(1.18 KB)
📄 FPOptions.def(1.16 KB)
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📄 FileManager.h(16.39 KB)
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📄 FixedPoint.h(8.6 KB)
📄 IdentifierTable.h(33.75 KB)
📄 JsonSupport.h(3.69 KB)
📄 LLVM.h(2.43 KB)
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📄 Linkage.h(4.13 KB)
📄 MSP430Target.def(7.04 KB)
📄 MacroBuilder.h(1.34 KB)
📄 Module.h(24.09 KB)
📄 ObjCRuntime.h(14.36 KB)
📄 OpenCLExtensionTypes.def(1.59 KB)
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📄 OpenCLImageTypes.def(4.1 KB)
📄 OpenCLOptions.h(4.42 KB)
📄 OpenMPKinds.def(4.58 KB)
📄 OpenMPKinds.h(9.66 KB)
📄 OperatorKinds.def(6.56 KB)
📄 OperatorKinds.h(1.55 KB)
📄 OperatorPrecedence.h(1.82 KB)
📄 PartialDiagnostic.h(12.96 KB)
📄 PlistSupport.h(4.02 KB)
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📄 PrettyStackTrace.h(1.26 KB)
📄 SanitizerBlacklist.h(1.73 KB)
📄 SanitizerSpecialCaseList.h(1.81 KB)
📄 Sanitizers.def(6.41 KB)
📄 Sanitizers.h(6.57 KB)
📄 SourceLocation.h(15.56 KB)
📄 SourceManager.h(71.11 KB)
📄 SourceManagerInternals.h(4.27 KB)
📄 Specifiers.h(12.68 KB)
📄 Stack.h(1.94 KB)
📄 StmtNodes.td(10.92 KB)
📄 SyncScope.h(4.87 KB)
📄 TargetBuiltins.h(9.18 KB)
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📄 TemplateKinds.h(2.22 KB)
📄 TokenKinds.def(33.83 KB)
📄 TokenKinds.h(3.99 KB)
📄 TypeNodes.td(5.48 KB)
📄 TypeTraits.h(2.67 KB)
📄 Version.h(2.23 KB)
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📄 X86Target.def(5.21 KB)
📄 XRayInstr.h(1.92 KB)
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📄 arm_bf16.td(590 B)
📄 arm_cde.td(9.29 KB)
📄 arm_fp16.td(5.79 KB)
📄 arm_mve.td(70.85 KB)
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📄 arm_neon.td(90.63 KB)
📄 arm_neon_incl.td(13.64 KB)
📄 arm_sve.td(162.48 KB)

Editing: CharInfo.h

//===--- clang/Basic/CharInfo.h - Classifying ASCII Characters --*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_BASIC_CHARINFO_H
#define LLVM_CLANG_BASIC_CHARINFO_H

#include "clang/Basic/LLVM.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataTypes.h"

namespace clang {
namespace charinfo {
  extern const uint16_t InfoTable[256];

enum {
    CHAR_HORZ_WS  = 0x0001,  // '\t', '\f', '\v'.  Note, no '\0'
    CHAR_VERT_WS  = 0x0002,  // '\r', '\n'
    CHAR_SPACE    = 0x0004,  // ' '
    CHAR_DIGIT    = 0x0008,  // 0-9
    CHAR_XLETTER  = 0x0010,  // a-f,A-F
    CHAR_UPPER    = 0x0020,  // A-Z
    CHAR_LOWER    = 0x0040,  // a-z
    CHAR_UNDER    = 0x0080,  // _
    CHAR_PERIOD   = 0x0100,  // .
    CHAR_RAWDEL   = 0x0200,  // {}[]#<>%:;?*+-/^&|~!=,"'
    CHAR_PUNCT    = 0x0400   // `$@()
  };

enum {
    CHAR_XUPPER = CHAR_XLETTER | CHAR_UPPER,
    CHAR_XLOWER = CHAR_XLETTER | CHAR_LOWER
  };
} // end namespace charinfo

/// Returns true if this is an ASCII character.
LLVM_READNONE inline bool isASCII(char c) {
  return static_cast<unsigned char>(c) <= 127;
}

/// Returns true if this is a valid first character of a C identifier,
/// which is [a-zA-Z_].
LLVM_READONLY inline bool isIdentifierHead(unsigned char c,
                                           bool AllowDollar = false) {
  using namespace charinfo;
  if (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_UNDER))
    return true;
  return AllowDollar && c == '$';
}

/// Returns true if this is a body character of a C identifier,
/// which is [a-zA-Z0-9_].
LLVM_READONLY inline bool isIdentifierBody(unsigned char c,
                                           bool AllowDollar = false) {
  using namespace charinfo;
  if (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_DIGIT|CHAR_UNDER))
    return true;
  return AllowDollar && c == '$';
}

/// Returns true if this character is horizontal ASCII whitespace:
/// ' ', '\\t', '\\f', '\\v'.
///
/// Note that this returns false for '\\0'.
LLVM_READONLY inline bool isHorizontalWhitespace(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_HORZ_WS|CHAR_SPACE)) != 0;
}

/// Returns true if this character is vertical ASCII whitespace: '\\n', '\\r'.
///
/// Note that this returns false for '\\0'.
LLVM_READONLY inline bool isVerticalWhitespace(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & CHAR_VERT_WS) != 0;
}

/// Return true if this character is horizontal or vertical ASCII whitespace:
/// ' ', '\\t', '\\f', '\\v', '\\n', '\\r'.
///
/// Note that this returns false for '\\0'.
LLVM_READONLY inline bool isWhitespace(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_HORZ_WS|CHAR_VERT_WS|CHAR_SPACE)) != 0;
}

/// Return true if this character is an ASCII digit: [0-9]
LLVM_READONLY inline bool isDigit(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & CHAR_DIGIT) != 0;
}

/// Return true if this character is a lowercase ASCII letter: [a-z]
LLVM_READONLY inline bool isLowercase(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & CHAR_LOWER) != 0;
}

/// Return true if this character is an uppercase ASCII letter: [A-Z]
LLVM_READONLY inline bool isUppercase(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & CHAR_UPPER) != 0;
}

/// Return true if this character is an ASCII letter: [a-zA-Z]
LLVM_READONLY inline bool isLetter(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER)) != 0;
}

/// Return true if this character is an ASCII letter or digit: [a-zA-Z0-9]
LLVM_READONLY inline bool isAlphanumeric(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_DIGIT|CHAR_UPPER|CHAR_LOWER)) != 0;
}

/// Return true if this character is an ASCII hex digit: [0-9a-fA-F]
LLVM_READONLY inline bool isHexDigit(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_DIGIT|CHAR_XLETTER)) != 0;
}

/// Return true if this character is an ASCII punctuation character.
///
/// Note that '_' is both a punctuation character and an identifier character!
LLVM_READONLY inline bool isPunctuation(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_UNDER|CHAR_PERIOD|CHAR_RAWDEL|CHAR_PUNCT)) != 0;
}

/// Return true if this character is an ASCII printable character; that is, a
/// character that should take exactly one column to print in a fixed-width
/// terminal.
LLVM_READONLY inline bool isPrintable(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_PERIOD|CHAR_PUNCT|
                          CHAR_DIGIT|CHAR_UNDER|CHAR_RAWDEL|CHAR_SPACE)) != 0;
}

/// Return true if this is the body character of a C preprocessing number,
/// which is [a-zA-Z0-9_.].
LLVM_READONLY inline bool isPreprocessingNumberBody(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] &
          (CHAR_UPPER|CHAR_LOWER|CHAR_DIGIT|CHAR_UNDER|CHAR_PERIOD)) != 0;
}

/// Return true if this is the body character of a C++ raw string delimiter.
LLVM_READONLY inline bool isRawStringDelimBody(unsigned char c) {
  using namespace charinfo;
  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_PERIOD|
                          CHAR_DIGIT|CHAR_UNDER|CHAR_RAWDEL)) != 0;
}

/// Converts the given ASCII character to its lowercase equivalent.
///
/// If the character is not an uppercase character, it is returned as is.
LLVM_READONLY inline char toLowercase(char c) {
  if (isUppercase(c))
    return c + 'a' - 'A';
  return c;
}

/// Converts the given ASCII character to its uppercase equivalent.
///
/// If the character is not a lowercase character, it is returned as is.
LLVM_READONLY inline char toUppercase(char c) {
  if (isLowercase(c))
    return c + 'A' - 'a';
  return c;
}

/// Return true if this is a valid ASCII identifier.
///
/// Note that this is a very simple check; it does not accept UCNs as valid
/// identifier characters.
LLVM_READONLY inline bool isValidIdentifier(StringRef S,
                                            bool AllowDollar = false) {
  if (S.empty() || !isIdentifierHead(S[0], AllowDollar))
    return false;

for (StringRef::iterator I = S.begin(), E = S.end(); I != E; ++I)
    if (!isIdentifierBody(*I, AllowDollar))
      return false;

return true;
}

} // end namespace clang

#endif

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