DynGenPar::Pmcfg Struct Reference

PMCFG. More...

List of all members.

Public Attributes
grammar
QList< Function >	functions
	list of PMCFG functions
RuleSet	rules
	set of PMCFG rules
TokenSet	tokens
	set of true tokens
Cat	startCat
	start category
RuleSet	cfRules
	optional context-free rules
function name tables (optional)
QHash< int, QString >	functionNames
QHash< QString, int >	functionIndices
void	addFunction (const QString &name, const Function &function)
Function	lookupFunction (const QVariant &id) const

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Detailed Description

PMCFG.

Definition at line 906 of file dyngenpar.h.

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Member Function Documentation

void DynGenPar::Pmcfg::addFunction	(	const QString &	name,
		const Function &	function
	)		[inline]

Definition at line 954 of file dyngenpar.h.

Function DynGenPar::Pmcfg::lookupFunction

(

const QVariant &

id

)

const [inline]

Definition at line 960 of file dyngenpar.h.

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Member Data Documentation

RuleSet DynGenPar::Pmcfg::cfRules

optional context-free rules

allows specifying rules for context-free categories which can be used as "token" terms in PMCFG functions, e.g. A -> "a" | "an"

Warning:

The exact expansion used will be reflected only in the parse tree, not in the PMCFG syntax tree. Do not use this feature if you need to know which exact expression was used.

Definition at line 947 of file dyngenpar.h.

QHash<QString, int> DynGenPar::Pmcfg::functionIndices

Definition at line 953 of file dyngenpar.h.

QHash<int, QString> DynGenPar::Pmcfg::functionNames

Definition at line 952 of file dyngenpar.h.

QList<Function> DynGenPar::Pmcfg::functions

list of PMCFG functions

This list does not store function names. They can be optionally used and are stored in functionNames and functionIndices.

Definition at line 913 of file dyngenpar.h.

RuleSet DynGenPar::Pmcfg::rules

set of PMCFG rules

Rules should be labeled with the index of the function in functions or its name as found in functionNames and functionIndices. The expression of the rule is interpreted as the argument list for the function. For example:

  Rule(1) << "A" << "B"; // calls function #1 with (A, B) as parameters
  Rule("f") << "A" << "B"; // calls f(A, B)

In a standard PMCFG, the argument list may contain only PMCFG nonterminals. The syntax tree then only contains the function and the syntax trees for each argument. This implementation also allows tokens and context-free nonterminals as function arguments, in which case the syntax tree will contain the parse tree for the context-free argument. In particular, in the case of a token, the data attached to the token is retained.

Definition at line 932 of file dyngenpar.h.

Cat DynGenPar::Pmcfg::startCat

start category

The start category must be 1-dimensional.

Definition at line 938 of file dyngenpar.h.

TokenSet DynGenPar::Pmcfg::tokens

set of true tokens

(must NOT contain context-free nonterminals)

Definition at line 935 of file dyngenpar.h.

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The documentation for this struct was generated from the following file:

• dyngenpar.h