Package com.singularsys.jep

Interface Parser

All Superinterfaces:

JepComponent, Serializable

All Known Implementing Classes:

ConfigurableParser, NullParser, StandardConfigurableParser, StandardParser

public interface Parser
extends JepComponent

Defines the methods a parser must implement.

Method Summary

Modifier and Type	Method	Description
Node	continueParse()	Read the next equation from the stream.
Node	parse(Reader stream)	Parse a single equation from a stream
void	restart(Reader stream)	Restart the parser for reentrant parsing of multiple equations.

Methods inherited from interface com.singularsys.jep.JepComponent

getLightWeightInstance, init

Method Details

parse

Node parse(Reader stream)
    throws ParseException

Parse a single equation from a stream

Parameters:

stream - input reader

Returns:

the root node of the expression tree

Throws:

ParseException - on syntax/grammatical error in input

restart

void restart(Reader stream)

Restart the parser for reentrant parsing of multiple equations.

Parameters:

stream - input stream

continueParse

Node continueParse()
            throws ParseException

Read the next equation from the stream. By default, empty expressions should be silently ignored.

Returns:

the root node of the expression tree

Throws:

ParseException - on syntax/grammatical error in input