clang
8.0.0
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StringLiteralParser - This decodes string escape characters and performs wide string analysis and Translation Phase #6 (concatenation of string literals) (C99 5.1.1.2p1). More...
#include "clang/Lex/LiteralSupport.h"
Public Member Functions | |
StringLiteralParser (ArrayRef< Token > StringToks, Preprocessor &PP, bool Complain=true) | |
StringLiteralParser (ArrayRef< Token > StringToks, const SourceManager &sm, const LangOptions &features, const TargetInfo &target, DiagnosticsEngine *diags=nullptr) | |
StringRef | GetString () const |
unsigned | GetStringLength () const |
unsigned | GetNumStringChars () const |
unsigned | getOffsetOfStringByte (const Token &TheTok, unsigned ByteNo) const |
getOffsetOfStringByte - This function returns the offset of the specified byte of the string data represented by Token. More... | |
bool | isAscii () const |
bool | isWide () const |
bool | isUTF8 () const |
bool | isUTF16 () const |
bool | isUTF32 () const |
bool | isPascal () const |
StringRef | getUDSuffix () const |
unsigned | getUDSuffixToken () const |
Get the index of a token containing a ud-suffix. More... | |
unsigned | getUDSuffixOffset () const |
Get the spelling offset of the first byte of the ud-suffix. More... | |
Static Public Member Functions | |
static bool | isValidUDSuffix (const LangOptions &LangOpts, StringRef Suffix) |
Determine whether a suffix is a valid ud-suffix. More... | |
Public Attributes | |
bool | hadError |
bool | Pascal |
StringLiteralParser - This decodes string escape characters and performs wide string analysis and Translation Phase #6 (concatenation of string literals) (C99 5.1.1.2p1).
Definition at line 206 of file LiteralSupport.h.
StringLiteralParser::StringLiteralParser | ( | ArrayRef< Token > | StringToks, |
Preprocessor & | PP, | ||
bool | Complain = true |
||
) |
/// string-literal: [C++0x lex.string] /// encoding-prefix " [s-char-sequence] " /// encoding-prefix R raw-string /// encoding-prefix: /// u8 /// u /// U /// L /// s-char-sequence: /// s-char /// s-char-sequence s-char /// s-char: /// any member of the source character set except the double-quote ", /// backslash \, or new-line character /// escape-sequence /// universal-character-name /// raw-string: /// " d-char-sequence ( r-char-sequence ) d-char-sequence " /// r-char-sequence: /// r-char /// r-char-sequence r-char /// r-char: /// any member of the source character set, except a right parenthesis ) /// followed by the initial d-char-sequence (which may be empty) /// followed by a double quote ". /// d-char-sequence: /// d-char /// d-char-sequence d-char /// d-char: /// any member of the basic source character set except: /// space, the left parenthesis (, the right parenthesis ), /// the backslash \, and the control characters representing horizontal /// tab, vertical tab, form feed, and newline. /// escape-sequence: [C++0x lex.ccon] /// simple-escape-sequence /// octal-escape-sequence /// hexadecimal-escape-sequence /// simple-escape-sequence: /// one of \' \" \? \\ \a \b \f \n \r \t \v /// octal-escape-sequence: /// \ octal-digit /// \ octal-digit octal-digit /// \ octal-digit octal-digit octal-digit /// hexadecimal-escape-sequence: /// \x hexadecimal-digit /// hexadecimal-escape-sequence hexadecimal-digit /// universal-character-name: /// \u hex-quad /// \U hex-quad hex-quad /// hex-quad: /// hex-digit hex-digit hex-digit hex-digit ///
Definition at line 1451 of file LiteralSupport.cpp.
References EncodeUCNEscape(), clang::expandUCNs(), getCharWidth(), GetNumStringChars(), clang::Lexer::getSpelling(), GetStringLength(), hadError, isAscii(), Pascal, ProcessCharEscape(), and clang::DiagnosticsEngine::Report().
Referenced by clang::CharLiteralParser::CharLiteralParser().
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Definition at line 224 of file LiteralSupport.h.
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Definition at line 243 of file LiteralSupport.h.
Referenced by StringLiteralParser().
unsigned StringLiteralParser::getOffsetOfStringByte | ( | const Token & | Tok, |
unsigned | ByteNo | ||
) | const |
getOffsetOfStringByte - This function returns the offset of the specified byte of the string data represented by Token.
This handles advancing over escape sequences in the string.
If the Diagnostics pointer is non-null, then this will do semantic checking of the string literal and emit errors and warnings.
This handles advancing over escape sequences in the string.
Definition at line 1810 of file LiteralSupport.cpp.
References clang::Token::getLength(), clang::Token::getLocation(), clang::Lexer::getSpelling(), MeasureUCNEscape(), and ProcessCharEscape().
Referenced by clang::StringLiteral::getLocationOfByte().
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Definition at line 238 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), clang::ModuleMapParser::getLocation(), LexModuleNameComponent(), clang::Preprocessor::LexOnOffSwitch(), and ReadLineMarkerFlags().
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Definition at line 241 of file LiteralSupport.h.
Referenced by clang::ModuleMapParser::getLocation(), clang::StringLiteral::getLocationOfByte(), and StringLiteralParser().
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Definition at line 261 of file LiteralSupport.h.
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Get the spelling offset of the first byte of the ud-suffix.
Definition at line 269 of file LiteralSupport.h.
References clang::NumericLiteralParser::isValidUDSuffix(), and clang::format::Tok.
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Get the index of a token containing a ud-suffix.
Definition at line 264 of file LiteralSupport.h.
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Definition at line 254 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), ReadLineMarkerFlags(), resyncUTF8(), and StringLiteralParser().
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Definition at line 259 of file LiteralSupport.h.
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Definition at line 257 of file LiteralSupport.h.
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Definition at line 258 of file LiteralSupport.h.
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Definition at line 256 of file LiteralSupport.h.
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Determine whether a suffix is a valid ud-suffix.
We avoid treating reserved suffixes as ud-suffixes, because the diagnostic experience is better if we treat it as an invalid suffix.
Definition at line 1889 of file LiteralSupport.cpp.
References clang::NumericLiteralParser::isValidUDSuffix().
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Definition at line 255 of file LiteralSupport.h.
bool clang::StringLiteralParser::hadError |
Definition at line 235 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), clang::ModuleMapParser::getLocation(), LexModuleNameComponent(), clang::Preprocessor::LexOnOffSwitch(), ReadLineMarkerFlags(), and StringLiteralParser().
bool clang::StringLiteralParser::Pascal |
Definition at line 236 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), ReadLineMarkerFlags(), and StringLiteralParser().