Archon::Utilities::Lexer::RuleSet Class Reference

A set of lexer rules. More...

#include <archon/util/lexer.H>

Collaboration diagram for Archon::Utilities::Lexer::RuleSet:

[legend]List of all members.

Public Member Functions
template<typename L>
void	add (const Regex &r, int method, int terminal, L lexemeValue)
	Add a rule.
template<typename L>
void	add (const Regex &r, int method, int terminal, Ref< L > lexemeValue)
void	add (const Regex &r, int method, int terminal, RefAny lexemeValue)
void	add (const Regex &r, int method=-1, int terminal=-1)
Classes
struct	Rule

---

Detailed Description

A set of lexer rules.

A set of lexer rules must be created before the actual lexer can be created. In fact you must furst create a RuleSet object and add rules to it. Then you must create an Engine object from the rule set, and the finally you can create a lexer by associating an input streem with the engine.

Definition at line 258 of file lexer.H.

---

Member Function Documentation

template<typename L> void Archon::Utilities::Lexer::RuleSet::add (  const Regex &  r, int  method, int  terminal, L  lexemeValue )  [inline]

Add a rule. Parameters: method  A method index retrieved by calling Actor<C>::registerMethod(). The order of addition defines the relative priority of each rule (regular expression). That is if a prefix of the input matches more than one rule then the one added first is chosen. Definition at line 286 of file lexer.H. Referenced by Archon::X3D::VRML::Parser::Parser().

---

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

• archon/util/lexer.H

---