Loyc.LLParserGenerator.TerminalPred Class Reference

Represents a terminal (which is a token or a character) or a set of possible terminals (e.g. 'A'..'Z'). More...

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Source files:

• /Main/LLLPG/RuleAndPreds/Predicates.cs
• /Main/LLLPG/RuleAndPreds/PredVisitor.cs

Inheritance diagram for Loyc.LLParserGenerator.TerminalPred:

Remarks

Represents a terminal (which is a token or a character) or a set of possible terminals (e.g. 'A'..'Z').

Public fields
new IPGTerminalSet	Set
bool?	Prematched
Public fields inherited from Loyc.LLParserGenerator.Pred
Symbol	VarLabel
bool	VarIsList
Func< LNode, LNode >	ResultSaver
	A function that saves the result produced by the matching code of this predicate (null if the result is not saved). For example, if the parser generator is given the predicate @[ x='a'..'z' ], the default matching code will be @(Match('a', 'z')), and ResultSaver will be set to a function that receives this matching code and returns @(x = Match('a', 'z')) in response. More...

Properties
override bool	IsNullable [get]
Properties inherited from Loyc.LLParserGenerator.Pred
LNode	Basis [get, protected set]
abstract bool	IsNullable [get]
	Returns true if this predicate can match an empty input. More...
object?	Location [get]
Properties inherited from Loyc.IHasLocation
object	Location [get]

Public Member Functions
	TerminalPred (LNode basis, char ch)
	TerminalPred (LNode basis, int ch)
	TerminalPred (LNode basis, char lo, char hi)
	TerminalPred (LNode basis, IPGTerminalSet set, bool allowEOF=false)
	Initializes the object with the specified set. More...
override string	ToString ()
override void	Call (PredVisitor visitor)
Public Member Functions inherited from Loyc.LLParserGenerator.Pred
	Pred (LNode basis)
LNode	AutoSaveResult (LNode matchingCode)
virtual Pred	Clone ()
	Deep-clones a predicate tree. Terminal sets and Nodes referenced by the tree are not cloned; the clone's value of Next will be null. The same Pred cannot appear in two places in a tree, so you must clone before re-use. More...
string	ToStringWithPosition ()
virtual string	ChooseGotoLabel ()
	Optional. If this predicate represents the matching code for a branch of an Alts and this code is reached through a goto statement, this method is used to select a label name. Supported by RuleRef. More...
Public Member Functions inherited from Loyc.ICloneable< Pred >
T	Clone ()

Additional Inherited Members
Static Public Member Functions inherited from Loyc.LLParserGenerator.Pred
static Seq	operator+ (char a, Pred b)
static Seq	operator+ (Pred a, char b)
static Seq	operator+ (Pred a, Pred b)
static Pred	operator| (char a, Pred b)
static Pred	operator| (Pred a, char b)
static Pred	operator| (Pred a, Pred b)
static Pred	operator/ (Pred a, Pred b)
static Pred	operator+ (Pred a)
static Pred	Or (Pred a, Pred b, bool slashJoined)
static Pred	Or (Pred a, Pred b, bool slashJoined, LNode basis, BranchMode aMode=BranchMode.None, BranchMode bMode=BranchMode.None, IMessageSink sink=null)
static Alts	Star (Pred contents, bool? greedy=null)
static Alts	Opt (Pred contents, bool? greedy=null)
static Seq	Plus (Pred contents, bool? greedy=null)
static TerminalPred	Range (char lo, char hi)
static TerminalPred	Set (IPGTerminalSet set)
static TerminalPred	Set (string set)
static TerminalPred	Set (params LNode[] s)
static TerminalPred	Not (params LNode[] s)
static TerminalPred	Char (char c)
static TerminalPred	Chars (params char[] c)
static Seq	Seq (string s, LNode basis=null)
static Rule	Rule (string name, Pred pred, bool isStartingRule=false, bool isToken=false, int maximumK=-1)
static Pred	operator+ (LNode pre, Pred p)
static Pred	operator+ (Pred p, LNode post)
static LNode	MergeActions (LNode action, LNode action2)
static AndPred	And (object test)
static AndPred	AndNot (object test)
static Pred	Set (string varName, Pred pred)
static Pred	SetVar (string varName, Pred pred)
static Pred	AddSet (string varName, Pred pred)
static Pred	Op (string varName, Symbol @operator, Pred pred)

Constructor & Destructor Documentation

TerminalPred()

Loyc.LLParserGenerator.TerminalPred.TerminalPred ( LNode  basis, IPGTerminalSet  set, bool  allowEOF = false  )

inline

Initializes the object with the specified set.