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Diffstat (limited to 'include/clang/Basic/CharInfo.h')
| -rw-r--r-- | include/clang/Basic/CharInfo.h | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/include/clang/Basic/CharInfo.h b/include/clang/Basic/CharInfo.h deleted file mode 100644 index dd9c554..0000000 --- a/include/clang/Basic/CharInfo.h +++ /dev/null @@ -1,198 +0,0 @@ -//===--- clang/Basic/CharInfo.h - Classifying ASCII Characters ------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#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 // `$@() - }; - - enum { - CHAR_XUPPER = CHAR_XLETTER | CHAR_UPPER, - CHAR_XLOWER = CHAR_XLETTER | CHAR_LOWER - }; -} // end namespace charinfo - -/// Returns true if this is an ASCII character. -LLVM_READNONE static inline bool isASCII(char c) { - return static_cast<unsigned char>(c) <= 127; -} - -/// Returns true if this is a valid first character of a C identifier, -/// which is [a-zA-Z_]. -LLVM_READONLY static inline bool isIdentifierHead(unsigned char c, - bool AllowDollar = false) { - using namespace charinfo; - if (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_UNDER)) - return true; - return AllowDollar && c == '$'; -} - -/// Returns true if this is a body character of a C identifier, -/// which is [a-zA-Z0-9_]. -LLVM_READONLY static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 '$' or UCNs as -/// valid identifier characters. -LLVM_READONLY static inline bool isValidIdentifier(StringRef S) { - if (S.empty() || !isIdentifierHead(S[0])) - return false; - - for (StringRef::iterator I = S.begin(), E = S.end(); I != E; ++I) - if (!isIdentifierBody(*I)) - return false; - - return true; -} - -} // end namespace clang - -#endif |
