Enhanced C#
Language of your choice: library documentation
|
A helper class used by LLLPG for backtracking. More...
A helper class used by LLLPG for backtracking.
Public fields | |
BaseParser< Token, MatchType > | _parser |
int | _oldPosition |
Public Member Functions | |
SavePosition (BaseParser< Token, MatchType > parser, int lookaheadAmt) | |
void | Dispose () |
Additional Inherited Members | |
Public static fields inherited from Loyc.Syntax.BaseParser< Token, MatchType > | |
static readonly IMessageSink | FormatExceptionErrorSink |
Throws FormatException when it receives an error. Non-errors are sent to MessageSink.Current. More... | |
Properties inherited from Loyc.Syntax.BaseParser< Token, MatchType > | |
IMessageSink | ErrorSink [get, set] |
Gets or sets the object to which error messages are sent. The default object is FormatExceptionErrorSink, which throws FormatException if an error occurs. More... | |
ISourceFile | SourceFile [get] |
The ISourceFile object that was provided to the constructor, if any. More... | |
Token | LT0 [get] |
Next token to parse (cached; is set to LT(0) whenever InputPosition is changed). More... | |
int | InputPosition [get, set] |
Current position of the next token to be parsed. More... | |
abstract MatchType | LA0Int [get] |
Returns the token type of _lt0 (normally _lt0.TypeInt) More... | |
Protected Member Functions inherited from Loyc.Syntax.BaseParser< Token, MatchType > | |
BaseParser (ISourceFile file=null, int startIndex=0) | |
abstract MatchType | EofInt () |
Returns the value used for EOF (normally 0) More... | |
abstract Token | LT (int i) |
Returns the token at lookahead i (e.g. Source[InputPosition + i] if the tokens come from a list called Source) More... | |
abstract string | ToString (MatchType tokenType) |
Returns a string representation of the specified token type. These strings are used in error messages. More... | |
virtual int | LaIndexToCharIndex (int lookaheadIndex) |
Converts a lookahead token index to a character index (used for error reporting). More... | |
virtual object | LaIndexToSourcePos (int lookaheadIndex) |
Converts a lookahead token index to a SourcePos object using LaIndexToCharIndex and SourceFile. More... | |
virtual void | Error (int lookaheadIndex, string message) |
Records an error or throws an exception. More... | |
virtual void | Error (int lookaheadIndex, string format, params object[] args) |
void | Skip () |
Token | MatchAny () |
Token | Match (HashSet< MatchType > set, bool inverted=false) |
Token | Match (MatchType a) |
Token | Match (MatchType a, MatchType b) |
Token | Match (MatchType a, MatchType b, MatchType c) |
Token | Match (MatchType a, MatchType b, MatchType c, MatchType d) |
Token | MatchExcept () |
Token | MatchExcept (MatchType a) |
Token | MatchExcept (MatchType a, MatchType b) |
Token | MatchExcept (MatchType a, MatchType b, MatchType c) |
Token | MatchExcept (MatchType a, MatchType b, MatchType c, MatchType d) |
Token | MatchExcept (HashSet< MatchType > set) |
bool | TryMatch (HashSet< MatchType > set, bool inverted=false) |
bool | TryMatch (MatchType a) |
bool | TryMatch (MatchType a, MatchType b) |
bool | TryMatch (MatchType a, MatchType b, MatchType c) |
bool | TryMatch (MatchType a, MatchType b, MatchType c, MatchType d) |
bool | TryMatchExcept () |
bool | TryMatchExcept (MatchType a) |
bool | TryMatchExcept (MatchType a, MatchType b) |
bool | TryMatchExcept (MatchType a, MatchType b, MatchType c) |
bool | TryMatchExcept (MatchType a, MatchType b, MatchType c, MatchType d) |
bool | TryMatchExcept (HashSet< MatchType > set) |
void | Error (bool inverted, params MatchType[] expected) |
virtual void | Error (bool inverted, IEnumerable< MatchType > expected) |
virtual string | ToString (bool inverted, IEnumerable< MatchType > expected) |
virtual void | Check (bool expectation, string expectedDescr="") |
Static Protected Member Functions inherited from Loyc.Syntax.BaseParser< Token, MatchType > | |
static HashSet< MatchType > | NewSet (params MatchType[] items) |
Protected fields inherited from Loyc.Syntax.BaseParser< Token, MatchType > | |
ISourceFile | _sourceFile |
Token | _lt0 |
int | _inputPosition |
MatchType | EOF |