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Jasper Expression Language Impl

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BNF for ELParser.jj


BNF for ELParser.jj
NON-TERMINALS


CompositeExpression
::=
( DeferredExpression | DynamicExpression | LiteralExpression )* <EOF>


LiteralExpression
::=
<LITERAL_EXPRESSION>


DeferredExpression
::=
<START_DEFERRED_EXPRESSION> Expression <END_EXPRESSION>


DynamicExpression
::=
<START_DYNAMIC_EXPRESSION> Expression <END_EXPRESSION>


Expression
::=
Choice


Choice
::=
Or ( <QUESTIONMARK> Choice <COLON> Choice )*


Or
::=
And ( ( <OR0> | <OR1> ) And )*


And
::=
Equality ( ( <AND0> | <AND1> ) Equality )*


Equality
::=
Compare ( ( ( <EQ0> | <EQ1> ) Compare ) | ( ( <NE0> | <NE1> ) Compare ) )*


Compare
::=
Math ( ( ( <LT0> | <LT1> ) Math ) | ( ( <GT0> | <GT1> ) Math ) | ( ( <LE0> | <LE1> ) Math ) | ( ( <GE0> | <GE1> ) Math ) )*


Math
::=
Multiplication ( ( <PLUS> Multiplication ) | ( <MINUS> Multiplication ) )*


Multiplication
::=
Unary ( ( <MULT> Unary ) | ( <DIV> Unary ) | ( ( <MOD0> | <MOD1> ) Unary ) )*


Unary
::=
<MINUS> Unary



|
( <NOT0> | <NOT1> ) Unary



|
<EMPTY> Unary



|
Value


Value
::=
( ValuePrefix ( ValueSuffix )* )


ValuePrefix
::=
Literal



|
NonLiteral


ValueSuffix
::=
DotSuffix



|
BracketSuffix


DotSuffix
::=
<DOT> <IDENTIFIER>


BracketSuffix
::=
<LBRACK> Expression <RBRACK>


NonLiteral
::=
<LPAREN> Expression <RPAREN>



|
Function



|
Identifier


Identifier
::=
<IDENTIFIER>


Function
::=
<IDENTIFIER> ( <FUNCTIONSUFFIX> )? <LPAREN> ( Expression ( <COMMA> Expression )* )? <RPAREN>


Literal
::=
Boolean



|
FloatingPoint



|
Integer



|
String



|
Null


Boolean
::=
<TRUE>



|
<FALSE>


FloatingPoint
::=
<FLOATING_POINT_LITERAL>


Integer
::=
<INTEGER_LITERAL>


String
::=
<STRING_LITERAL>


Null
::=
<NULL>

CompositeExpression	::=	( DeferredExpression \| DynamicExpression \| LiteralExpression )* <EOF>
LiteralExpression	::=	<LITERAL_EXPRESSION>
DeferredExpression	::=	<START_DEFERRED_EXPRESSION> Expression <END_EXPRESSION>
DynamicExpression	::=	<START_DYNAMIC_EXPRESSION> Expression <END_EXPRESSION>
Expression	::=	Choice
Choice	::=	Or ( <QUESTIONMARK> Choice <COLON> Choice )*
Or	::=	And ( ( <OR0> \| <OR1> ) And )*
And	::=	Equality ( ( <AND0> \| <AND1> ) Equality )*
Equality	::=	Compare ( ( ( <EQ0> \| <EQ1> ) Compare ) \| ( ( <NE0> \| <NE1> ) Compare ) )*
Compare	::=	Math ( ( ( <LT0> \| <LT1> ) Math ) \| ( ( <GT0> \| <GT1> ) Math ) \| ( ( <LE0> \| <LE1> ) Math ) \| ( ( <GE0> \| <GE1> ) Math ) )*
Math	::=	Multiplication ( ( <PLUS> Multiplication ) \| ( <MINUS> Multiplication ) )*
Multiplication	::=	Unary ( ( <MULT> Unary ) \| ( <DIV> Unary ) \| ( ( <MOD0> \| <MOD1> ) Unary ) )*
Unary	::=	<MINUS> Unary
	\|	( <NOT0> \| <NOT1> ) Unary
	\|	<EMPTY> Unary
	\|	Value
Value	::=	( ValuePrefix ( ValueSuffix )* )
ValuePrefix	::=	Literal
	\|	NonLiteral
ValueSuffix	::=	DotSuffix
	\|	BracketSuffix
DotSuffix	::=	<DOT> <IDENTIFIER>
BracketSuffix	::=	<LBRACK> Expression <RBRACK>
NonLiteral	::=	<LPAREN> Expression <RPAREN>
	\|	Function
	\|	Identifier
Identifier	::=	<IDENTIFIER>
Function	::=	<IDENTIFIER> ( <FUNCTIONSUFFIX> )? <LPAREN> ( Expression ( <COMMA> Expression )* )? <RPAREN>
Literal	::=	Boolean
	\|	FloatingPoint
	\|	Integer
	\|	String
	\|	Null
Boolean	::=	<TRUE>
	\|	<FALSE>
FloatingPoint	::=	<FLOATING_POINT_LITERAL>
Integer	::=	<INTEGER_LITERAL>
String	::=	<STRING_LITERAL>
Null	::=	<NULL>