com.satline.expr.compiler
Class ExpressionCompiler

java.lang.Object
  com.satline.expr.compiler.ExpressionCompiler

public class ExpressionCompiler
extends java.lang.Object

Author:

tomas

Field Summary

protected java.util.Locale	locale
protected int	nextToken
static int	PRESERVE_NEWLINES_IN_STRINGS
protected java.lang.String[]	tokenStream

Constructor Summary

ExpressionCompiler(java.lang.String expr, java.util.Locale locale, int options)

Method Summary

protected java.lang.Class<? extends BinaryTerm>	additionOperator(java.lang.String string)
protected java.lang.Class<? extends BinaryTerm>	comparisonOperator(java.lang.String string)
protected java.lang.String	currentToken()
protected java.lang.String	followingToken()
protected java.lang.Class<? extends FunctionCall>	function(java.lang.String name)
protected java.util.List<java.lang.String>	getTokenStream(java.lang.String expr, int options)
protected java.lang.Class<? extends BinaryTerm>	multiplicationOperator(java.lang.String string)
protected java.lang.Class<? extends FunctionCall>	noArgFunction(java.lang.String name)
protected Expression	parse()
static Expression	parse(java.lang.String expr, java.util.Locale locale, int options)
protected Expression	parseAddition()
protected Expression	parseAnd()
protected Expression	parseAtom()
protected Expression	parseComparison()
protected Expression	parseMultiplication()
protected Expression	parseOr()
protected Expression	parseUnaryTerm()
protected Expression	resolveName(java.lang.String name)
protected java.lang.Class<? extends UnaryTerm>	unaryFunction(java.lang.String name)
protected java.lang.Class<? extends UnaryTerm>	unaryPostfix(java.lang.String string)
protected java.lang.Class<? extends UnaryTerm>	unaryPrefix(java.lang.String string)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PRESERVE_NEWLINES_IN_STRINGS

public static final int PRESERVE_NEWLINES_IN_STRINGS

See Also:

Constant Field Values

locale

protected java.util.Locale locale

tokenStream

protected java.lang.String[] tokenStream

nextToken

protected int nextToken

Constructor Detail

ExpressionCompiler

public ExpressionCompiler(java.lang.String expr,
                          java.util.Locale locale,
                          int options)
                   throws ExpressionException

Throws:

ExpressionException

Method Detail

getTokenStream

protected java.util.List<java.lang.String> getTokenStream(java.lang.String expr,
                                                          int options)
                                                   throws ExpressionException

Throws:

ExpressionException

currentToken

protected java.lang.String currentToken()

followingToken

protected java.lang.String followingToken()

parse

protected Expression parse()
                    throws ExpressionException

Throws:

ExpressionException

parseOr

protected Expression parseOr()
                      throws ExpressionException

Returns:

Throws:

ExpressionException

parseAnd

protected Expression parseAnd()
                       throws ExpressionException

Returns:

Throws:

ExpressionException

parseComparison

protected Expression parseComparison()
                              throws ExpressionException

Returns:

Throws:

ExpressionException

comparisonOperator

protected java.lang.Class<? extends BinaryTerm> comparisonOperator(java.lang.String string)

Parameters:

string -

Returns:

parseAddition

protected Expression parseAddition()
                            throws ExpressionException

Returns:

Throws:

ExpressionException

additionOperator

protected java.lang.Class<? extends BinaryTerm> additionOperator(java.lang.String string)

Parameters:

string -

Returns:

parseMultiplication

protected Expression parseMultiplication()
                                  throws ExpressionException

Returns:

Throws:

ExpressionException

multiplicationOperator

protected java.lang.Class<? extends BinaryTerm> multiplicationOperator(java.lang.String string)

Parameters:

string -

Returns:

parseUnaryTerm

protected Expression parseUnaryTerm()
                             throws ExpressionException

Returns:

Throws:

ExpressionException

unaryPostfix

protected java.lang.Class<? extends UnaryTerm> unaryPostfix(java.lang.String string)

Parameters:

string -

Returns:

unaryPrefix

protected java.lang.Class<? extends UnaryTerm> unaryPrefix(java.lang.String string)

Parameters:

string -

Returns:

parseAtom

protected Expression parseAtom()
                        throws ExpressionException

Returns:

Throws:

ExpressionException

resolveName

protected Expression resolveName(java.lang.String name)
                          throws ExpressionException

Throws:

ExpressionException

noArgFunction

protected java.lang.Class<? extends FunctionCall> noArgFunction(java.lang.String name)

Parameters:

name -

Returns:

unaryFunction

protected java.lang.Class<? extends UnaryTerm> unaryFunction(java.lang.String name)

Parameters:

name -

Returns:

function

protected java.lang.Class<? extends FunctionCall> function(java.lang.String name)

Parameters:

name -

Returns:

parse

public static Expression parse(java.lang.String expr,
                               java.util.Locale locale,
                               int options)
                        throws ExpressionException

Throws:

ExpressionException