clang
6.0.0
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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 195 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 1286 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 213 of file LiteralSupport.h.
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Definition at line 232 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 1645 of file LiteralSupport.cpp.
References clang::Token::getLength(), clang::Token::getLocation(), clang::Lexer::getSpelling(), MeasureUCNEscape(), and ProcessCharEscape().
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Definition at line 227 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), LexModuleNameComponent(), and ReadLineMarkerFlags().
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Definition at line 230 of file LiteralSupport.h.
Referenced by StringLiteralParser().
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Definition at line 250 of file LiteralSupport.h.
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Get the spelling offset of the first byte of the ud-suffix.
Definition at line 258 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 253 of file LiteralSupport.h.
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Definition at line 243 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), ReadLineMarkerFlags(), resyncUTF8(), and StringLiteralParser().
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Definition at line 248 of file LiteralSupport.h.
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Definition at line 246 of file LiteralSupport.h.
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Definition at line 247 of file LiteralSupport.h.
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Definition at line 245 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 1724 of file LiteralSupport.cpp.
References clang::NumericLiteralParser::isValidUDSuffix().
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Definition at line 244 of file LiteralSupport.h.
bool clang::StringLiteralParser::hadError |
Definition at line 224 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), clang::ModuleMapParser::getLocation(), LexModuleNameComponent(), ReadLineMarkerFlags(), and StringLiteralParser().
bool clang::StringLiteralParser::Pascal |
Definition at line 225 of file LiteralSupport.h.
Referenced by clang::Preprocessor::FinishLexStringLiteral(), GetLineValue(), ReadLineMarkerFlags(), and StringLiteralParser().