+# Ignore intermediate build directories and files
+/jvm/
+/javac/*.class
+/javac/*.java
+
+# Ignore the generated ANTLR files
+/javac/antlr/
+
+# Ignore build directories for other tools
/linker/
/machine/
+
+/compiled/
+/temporary/
+/experiment/
+/deprecated/
+/test/
grammar GQL;
-options { caseInsensitive = true; }
+root: query+ EOF;
-// 6 <GQL-program>
+query: '{' field+ '}';
-gqlProgram
- : programActivity sessionCloseCommand? EOF
- | sessionCloseCommand EOF
- ;
+field: ID ':' value;
-programActivity
- : sessionActivity
- | transactionActivity
- ;
+value: STRING | number;
-sessionActivity
- : sessionResetCommand+
- | sessionSetCommand+ sessionResetCommand*
- ;
+number: INT | FLOAT;
-transactionActivity
- : startTransactionCommand (procedureSpecification endTransactionCommand?)?
- | procedureSpecification endTransactionCommand?
- | endTransactionCommand
- ;
-
-endTransactionCommand
- : rollbackCommand
- | commitCommand
- ;
-
-// 7.1 <session set command>
-
-sessionSetCommand
- : SESSION SET (sessionSetSchemaClause | sessionSetGraphClause | sessionSetTimeZoneClause | sessionSetParameterClause)
- ;
-
-sessionSetSchemaClause
- : SCHEMA schemaReference
- ;
-
-sessionSetGraphClause
- : PROPERTY? GRAPH graphExpression
- ;
-
-sessionSetTimeZoneClause
- : TIME ZONE setTimeZoneValue
- ;
-
-setTimeZoneValue
- : timeZoneString
- ;
-
-sessionSetParameterClause
- : sessionSetGraphParameterClause
- | sessionSetBindingTableParameterClause
- | sessionSetValueParameterClause
- ;
-
-sessionSetGraphParameterClause
- : PROPERTY? GRAPH sessionSetParameterName optTypedGraphInitializer
- ;
-
-sessionSetBindingTableParameterClause
- : BINDING? TABLE sessionSetParameterName optTypedBindingTableInitializer
- ;
-
-sessionSetValueParameterClause
- : VALUE sessionSetParameterName optTypedValueInitializer
- ;
-
-sessionSetParameterName
- : (IF NOT EXISTS)? sessionParameterSpecification
- ;
-
-// 7.2 <session reset command>
-
-sessionResetCommand
- : SESSION RESET sessionResetArguments?
- ;
-
-sessionResetArguments
- : ALL? (PARAMETERS | CHARACTERISTICS)
- | SCHEMA
- | PROPERTY? GRAPH
- | TIME ZONE
- | PARAMETER? sessionParameterSpecification
- ;
-
-// 7.3 <session close command>
-
-sessionCloseCommand
- : SESSION CLOSE
- ;
-
-// 7.4 <session parameter specification>
-
-sessionParameterSpecification
- : GENERAL_PARAMETER_REFERENCE
- ;
-
-// 8.1 <start transaction command>
-
-startTransactionCommand
- : START TRANSACTION transactionCharacteristics?
- ;
-
-// 8.2 <transaction characteristics>
-
-transactionCharacteristics
- : transactionMode (COMMA transactionMode)*
- ;
-
-transactionMode
- : transactionAccessMode
- ;
-
-transactionAccessMode
- : READ ONLY
- | READ WRITE
- ;
-
-// 8.3 <rollback command>
-
-rollbackCommand
- : ROLLBACK
- ;
-
-// 8.4 <commit command>
-
-commitCommand
- : COMMIT
- ;
-
-// 9.1 <nested procedure specification>
-
-nestedProcedureSpecification
- : LEFT_BRACE procedureSpecification RIGHT_BRACE
- ;
-
-// <catalog-modifying procedure specification>, <data-modifying procedure specification> and <query specification> are
-// identical productions. The specification distinguishes them in the BNF, but in the implementation, the distinction
-// has to be made sematically, in code, based on the kind of statements contained in the <procedure specification>.
-procedureSpecification
- : procedureBody
-// : catalogModifyingProcedureSpecification
-// | dataModifyingProcedureSpecification
-// | querySpecification
- ;
-
-//catalogModifyingProcedureSpecification
-// : procedureBody
-// ;
-
-nestedDataModifyingProcedureSpecification
- : LEFT_BRACE procedureBody RIGHT_BRACE
- ;
-
-//dataModifyingProcedureSpecification
-// : procedureBody
-// ;
-
-nestedQuerySpecification
- : LEFT_BRACE procedureBody RIGHT_BRACE
- ;
-
-//querySpecification
-// : procedureBody
-// ;
-
-// 9.2 <procedure body>
-
-procedureBody
- : atSchemaClause? bindingVariableDefinitionBlock? statementBlock
- ;
-
-bindingVariableDefinitionBlock
- : bindingVariableDefinition+
- ;
-
-bindingVariableDefinition
- : graphVariableDefinition
- | bindingTableVariableDefinition
- | valueVariableDefinition
- ;
-
-statementBlock
- : statement nextStatement*
- ;
-
-statement
- : linearCatalogModifyingStatement
- | linearDataModifyingStatement
- | compositeQueryStatement
- ;
-
-nextStatement
- : NEXT yieldClause? statement
- ;
-
-// 10.1 <graph variable definition>
-
-graphVariableDefinition
- : PROPERTY? GRAPH bindingVariable optTypedGraphInitializer
- ;
-
-optTypedGraphInitializer
- : (typed? graphReferenceValueType)? graphInitializer
- ;
-
-graphInitializer
- : EQUALS_OPERATOR graphExpression
- ;
-
-// 10.2 <binding table variable definition>
-
-bindingTableVariableDefinition
- : BINDING? TABLE bindingVariable optTypedBindingTableInitializer
- ;
-
-optTypedBindingTableInitializer
- : (typed? bindingTableReferenceValueType)? bindingTableInitializer
- ;
-
-bindingTableInitializer
- : EQUALS_OPERATOR bindingTableExpression
- ;
-
-// 10.3 <value variable definition>
-
-valueVariableDefinition
- : VALUE bindingVariable optTypedValueInitializer
- ;
-
-optTypedValueInitializer
- : (typed? valueType)? valueInitializer
- ;
-
-valueInitializer
- : EQUALS_OPERATOR valueExpression
- ;
-
-// 11.1 <graph expression>
-
-graphExpression
- : objectExpressionPrimary
- | graphReference
- | objectNameOrBindingVariable
- | currentGraph
- ;
-
-currentGraph
- : CURRENT_PROPERTY_GRAPH
- | CURRENT_GRAPH
- ;
-
-// 11.2 <binding table expression>
-
-bindingTableExpression
- : nestedBindingTableQuerySpecification
- | objectExpressionPrimary
- | bindingTableReference
- | objectNameOrBindingVariable
- ;
-
-nestedBindingTableQuerySpecification
- : nestedQuerySpecification
- ;
-
-// 11.3 <object expression primary>
-
-objectExpressionPrimary
- : VARIABLE valueExpressionPrimary
- | parenthesizedValueExpression
- | nonParenthesizedValueExpressionPrimarySpecialCase
- ;
-
-// 12.1 <linear catalog-modifying statement>
-
-linearCatalogModifyingStatement
- : simpleCatalogModifyingStatement+
- ;
-
-simpleCatalogModifyingStatement
- : primitiveCatalogModifyingStatement
- | callCatalogModifyingProcedureStatement
- ;
-
-primitiveCatalogModifyingStatement
- : createSchemaStatement
- | dropSchemaStatement
- | createGraphStatement
- | dropGraphStatement
- | createGraphTypeStatement
- | dropGraphTypeStatement
- ;
-
-// 12.2 <insert schema statement>
-
-createSchemaStatement
- : CREATE SCHEMA (IF NOT EXISTS)? catalogSchemaParentAndName
- ;
-
-// 12.3 <drop schema statement>
-
-dropSchemaStatement
- : DROP SCHEMA (IF EXISTS)? catalogSchemaParentAndName
- ;
-
-// 12.4 <insert graph statement>
-
-createGraphStatement
- : CREATE (PROPERTY? GRAPH (IF NOT EXISTS)? | OR REPLACE PROPERTY? GRAPH) catalogGraphParentAndName (openGraphType | ofGraphType) graphSource?
- ;
-
-openGraphType
- : typed? ANY (PROPERTY? GRAPH)?
- ;
-
-ofGraphType
- : graphTypeLikeGraph
- | typed? graphTypeReference
- | typed? (PROPERTY? GRAPH)? nestedGraphTypeSpecification
- ;
-
-graphTypeLikeGraph
- : LIKE graphExpression
- ;
-
-graphSource
- : AS COPY OF graphExpression
- ;
-
-// 12.5 <drop graph statement>
-
-dropGraphStatement
- : DROP PROPERTY? GRAPH (IF EXISTS)? catalogGraphParentAndName
- ;
-
-// 12.6 <graph type statement>
-
-createGraphTypeStatement
- : CREATE (PROPERTY? GRAPH TYPE (IF NOT EXISTS)? | OR REPLACE PROPERTY? GRAPH TYPE) catalogGraphTypeParentAndName graphTypeSource
- ;
-
-graphTypeSource
- : AS? copyOfGraphType
- | graphTypeLikeGraph
- | AS? nestedGraphTypeSpecification
- ;
-
-copyOfGraphType
- : COPY OF graphTypeReference
- ;
-
-// 12.7 <drop graph statement>
-
-dropGraphTypeStatement
- : DROP PROPERTY? GRAPH TYPE (IF EXISTS)? catalogGraphTypeParentAndName
- ;
-
-// 12.8 <call catalog-modifying statement>
-
-callCatalogModifyingProcedureStatement
- : callProcedureStatement
- ;
-
-// 13.1 <linear data-modifying statement>
-
-linearDataModifyingStatement
- : focusedLinearDataModifyingStatement
- | ambientLinearDataModifyingStatement
- ;
-
-focusedLinearDataModifyingStatement
- : focusedLinearDataModifyingStatementBody
- | focusedNestedDataModifyingProcedureSpecification
- ;
-
-focusedLinearDataModifyingStatementBody
- : useGraphClause simpleLinearDataAccessingStatement primitiveResultStatement?
- ;
-
-focusedNestedDataModifyingProcedureSpecification
- : useGraphClause nestedDataModifyingProcedureSpecification
- ;
-
-ambientLinearDataModifyingStatement
- : ambientLinearDataModifyingStatementBody
- | nestedDataModifyingProcedureSpecification
- ;
-
-ambientLinearDataModifyingStatementBody
- : simpleLinearDataAccessingStatement primitiveResultStatement?
- ;
-
-simpleLinearDataAccessingStatement
- : simpleQueryStatement* simpleDataModifyingStatement+
- ;
-
-// Subsumed by previous rule to enforce 13.1 SR 5
-//simpleDataAccessingStatement
-// : simpleQueryStatement
-// | simpleDataModifyingStatement
-// ;
-
-simpleDataModifyingStatement
- : primitiveDataModifyingStatement
- | callDataModifyingProcedureStatement
- ;
-
-primitiveDataModifyingStatement
- : insertStatement
- | setStatement
- | removeStatement
- | deleteStatement
- ;
-
-// 13.2 <insertStatement>
-
-insertStatement
- : INSERT insertGraphPattern
- ;
-
-// 13.3 <set statement>
-
-setStatement
- : SET setItemList
- ;
-
-setItemList
- : setItem (COMMA setItem)*
- ;
-
-setItem
- : setPropertyItem
- | setAllPropertiesItem
- | setLabelItem
- ;
-
-setPropertyItem
- : bindingVariableReference PERIOD propertyName EQUALS_OPERATOR valueExpression
- ;
-
-setAllPropertiesItem
- : bindingVariableReference EQUALS_OPERATOR LEFT_BRACE propertyKeyValuePairList? RIGHT_BRACE
- ;
-
-setLabelItem
- : bindingVariableReference isOrColon labelName
- ;
-
-// 13.4 <remove statement>
-
-removeStatement
- : REMOVE removeItemList
- ;
-
-removeItemList
- : removeItem (COMMA removeItem)*
- ;
-
-removeItem
- : removePropertyItem
- | removeLabelItem
- ;
-
-removePropertyItem
- : bindingVariableReference PERIOD propertyName
- ;
-
-removeLabelItem
- : bindingVariableReference isOrColon labelName
- ;
-
-// 13.5 <delete statement>
-
-deleteStatement
- : (DETACH | NODETACH)? DELETE deleteItemList
- ;
-
-deleteItemList
- : deleteItem (COMMA deleteItem)*
- ;
-
-deleteItem
- : valueExpression
- ;
-
-// 13.6 <call data-modifying procedure statement>
-
-callDataModifyingProcedureStatement
- : callProcedureStatement
- ;
-
-// 14.1 <composite query statement>
-
-compositeQueryStatement
- : compositeQueryExpression
- ;
-
-// 14.2 <composite query expression>
-
-compositeQueryExpression
- : compositeQueryExpression queryConjunction compositeQueryPrimary
- | compositeQueryPrimary
- ;
-
-queryConjunction
- : setOperator
- | OTHERWISE
- ;
-
-setOperator
- : UNION setQuantifier?
- | EXCEPT setQuantifier?
- | INTERSECT setQuantifier?
- ;
-
-compositeQueryPrimary
- : linearQueryStatement
- ;
-
-// 14.3 <linear query statement> and <simple query statement>
-
-linearQueryStatement
- : focusedLinearQueryStatement
- | ambientLinearQueryStatement
- ;
-
-focusedLinearQueryStatement
- : focusedLinearQueryStatementPart* focusedLinearQueryAndPrimitiveResultStatementPart
- | focusedPrimitiveResultStatement
- | focusedNestedQuerySpecification
- | selectStatement
- ;
-
-focusedLinearQueryStatementPart
- : useGraphClause simpleLinearQueryStatement
- ;
-
-focusedLinearQueryAndPrimitiveResultStatementPart
- : useGraphClause simpleLinearQueryStatement primitiveResultStatement
- ;
-
-focusedPrimitiveResultStatement
- : useGraphClause primitiveResultStatement
- ;
-
-focusedNestedQuerySpecification
- : useGraphClause nestedQuerySpecification
- ;
-
-ambientLinearQueryStatement
- : simpleLinearQueryStatement? primitiveResultStatement
- | nestedQuerySpecification
- ;
-
-simpleLinearQueryStatement
- : simpleQueryStatement+
- ;
-
-simpleQueryStatement
- : primitiveQueryStatement
- | callQueryStatement
- ;
-
-primitiveQueryStatement
- : matchStatement
- | letStatement
- | forStatement
- | filterStatement
- | orderByAndPageStatement
- ;
-
-// 14.4 <match statement>
-
-matchStatement
- : simpleMatchStatement
- | optionalMatchStatement
- ;
-
-simpleMatchStatement
- : MATCH graphPatternBindingTable
- ;
-
-optionalMatchStatement
- : OPTIONAL optionalOperand
- ;
-
-optionalOperand
- : simpleMatchStatement
- | LEFT_BRACE matchStatementBlock RIGHT_BRACE
- | LEFT_PAREN matchStatementBlock RIGHT_PAREN
- ;
-
-matchStatementBlock
- : matchStatement+
- ;
-
-// 14.5 <call query statement>
-
-callQueryStatement
- : callProcedureStatement
- ;
-
-// 14.6 <filter statement>
-
-filterStatement
- : FILTER (whereClause | searchCondition)
- ;
-
-// 14.7 <let statement>
-
-letStatement
- : LET letVariableDefinitionList
- ;
-
-letVariableDefinitionList
- : letVariableDefinition (COMMA letVariableDefinition)*
- ;
-
-letVariableDefinition
- : valueVariableDefinition
- | bindingVariable EQUALS_OPERATOR valueExpression
- ;
-
-// 14.8 <for statement>
-
-forStatement
- : FOR forItem forOrdinalityOrOffset?
- ;
-
-forItem
- : forItemAlias forItemSource
- ;
-
-forItemAlias
- : bindingVariable IN
- ;
-
-forItemSource
- : valueExpression
- ;
-
-forOrdinalityOrOffset
- : WITH (ORDINALITY | OFFSET) bindingVariable
- ;
-
-// 14.9 <order by and page statement>
-
-orderByAndPageStatement
- : orderByClause offsetClause? limitClause?
- | offsetClause limitClause?
- | limitClause
- ;
-
-// 14.10 <primitive result statement>
-
-primitiveResultStatement
- : returnStatement orderByAndPageStatement?
- | FINISH
- ;
-
-// 14.11 <return statement>
-
-returnStatement
- : RETURN returnStatementBody
- ;
-
-returnStatementBody
- : setQuantifier? (ASTERISK | returnItemList) groupByClause?
- | NO BINDINGS
- ;
-
-returnItemList
- : returnItem (COMMA returnItem)*
- ;
-
-returnItem
- : aggregatingValueExpression returnItemAlias?
- ;
-
-returnItemAlias
- : AS identifier
- ;
-
-// 14.12 <select statement>
-
-selectStatement
- : SELECT setQuantifier? (ASTERISK | selectItemList) (selectStatementBody whereClause? groupByClause? havingClause? orderByClause? offsetClause? limitClause?)?
- ;
-
-selectItemList
- : selectItem (COMMA selectItem)*
- ;
-
-selectItem
- : aggregatingValueExpression selectItemAlias?
- ;
-
-selectItemAlias
- : AS identifier
- ;
-
-havingClause
- : HAVING searchCondition
- ;
-
-selectStatementBody
- : FROM (selectGraphMatchList | selectQuerySpecification)
- ;
-
-selectGraphMatchList
- : selectGraphMatch (COMMA selectGraphMatch)*
- ;
-
-selectGraphMatch
- : graphExpression matchStatement
- ;
-
-selectQuerySpecification
- : nestedQuerySpecification
- | graphExpression nestedQuerySpecification
- ;
-
-// 15.1 <call procedure statement> and <procedure call>
-
-callProcedureStatement
- : OPTIONAL? CALL procedureCall
- ;
-
-procedureCall
- : inlineProcedureCall
- | namedProcedureCall
- ;
-
-// 15.2 <inline procedure call>
-
-inlineProcedureCall
- : variableScopeClause? nestedProcedureSpecification
- ;
-
-variableScopeClause
- : LEFT_PAREN bindingVariableReferenceList? RIGHT_PAREN
- ;
-
-bindingVariableReferenceList
- : bindingVariableReference (COMMA bindingVariableReference)*
- ;
-
-// 15.3 <named procedure call>
-
-namedProcedureCall
- : procedureReference LEFT_PAREN procedureArgumentList? RIGHT_PAREN yieldClause?
- ;
-
-procedureArgumentList
- : procedureArgument (COMMA procedureArgument)*
- ;
-
-procedureArgument
- : valueExpression
- ;
-
-// 16.1 <at schema clasue>
-
-atSchemaClause
- : AT schemaReference
- ;
-
-// 16.2 <use graph clause>
-
-useGraphClause
- : USE graphExpression
- ;
-
-// 16.3 <graph pattern binding table>
-
-graphPatternBindingTable
- : graphPattern graphPatternYieldClause?
- ;
-
-graphPatternYieldClause
- : YIELD graphPatternYieldItemList
- ;
-
-graphPatternYieldItemList
- : graphPatternYieldItem (COMMA graphPatternYieldItem)*
- | NO BINDINGS
- ;
-
-// <elemement variable reference> and <path variable reference> are identical productions, both consisting
-// of a single non-terminal <binding variable reference>. Thus <graph pattern yield item> is ambiguous
-// from a parsing standpoint. So here we simply use bindingVariableReference. Post parsing code must
-// apply the semantics assocaited with each type of <binding variable reference>.
-graphPatternYieldItem
- : bindingVariableReference
-// : elementVariableReference
-// | pathVariableReference
- ;
-
-// 16.4 <graph pattern>
-
-graphPattern
- : matchMode? pathPatternList keepClause? graphPatternWhereClause?
- ;
-
-matchMode
- : repeatableElementsMatchMode
- | differentEdgesMatchMode
- ;
-
-repeatableElementsMatchMode
- : REPEATABLE elementBindingsOrElements
- ;
-
-differentEdgesMatchMode
- : DIFFERENT edgeBindingsOrEdges
- ;
-
-elementBindingsOrElements
- : ELEMENT BINDINGS?
- | ELEMENTS
- ;
-
-edgeBindingsOrEdges
- : edgeSynonym BINDINGS?
- | edgesSynonym
- ;
-
-pathPatternList
- : pathPattern (COMMA pathPattern)*
- ;
-
-pathPattern
- : pathVariableDeclaration? pathPatternPrefix? pathPatternExpression
- ;
-
-pathVariableDeclaration
- : pathVariable EQUALS_OPERATOR
- ;
-
-keepClause
- : KEEP pathPatternPrefix
- ;
-
-graphPatternWhereClause
- : WHERE searchCondition
- ;
-
-// 16.5 <insert graph pattern>
-
-insertGraphPattern
- : insertPathPatternList
- ;
-
-insertPathPatternList
- : insertPathPattern (COMMA insertPathPattern)*
- ;
-
-insertPathPattern
- : insertNodePattern (insertEdgePattern insertNodePattern)*
- ;
-
-insertNodePattern
- : LEFT_PAREN insertElementPatternFiller? RIGHT_PAREN
- ;
-
-insertEdgePattern
- : insertEdgePointingLeft
- | insertEdgePointingRight
- | insertEdgeUndirected
- ;
-
-insertEdgePointingLeft
- : LEFT_ARROW_BRACKET insertElementPatternFiller? RIGHT_BRACKET_MINUS
- ;
-
-insertEdgePointingRight
- : MINUS_LEFT_BRACKET insertElementPatternFiller? BRACKET_RIGHT_ARROW
- ;
-
-insertEdgeUndirected
- : TILDE_LEFT_BRACKET insertElementPatternFiller? RIGHT_BRACKET_TILDE
- ;
-
-insertElementPatternFiller
- : elementVariableDeclaration labelAndPropertySetSpecification?
- | elementVariableDeclaration? labelAndPropertySetSpecification
- ;
-
-labelAndPropertySetSpecification
- : isOrColon labelSetSpecification elementPropertySpecification?
- | (isOrColon labelSetSpecification)? elementPropertySpecification
- ;
-
-// 16.6 <path pattern prefix>
-
-pathPatternPrefix
- : pathModePrefix
- | pathSearchPrefix
- ;
-
-pathModePrefix
- : pathMode pathOrPaths?
- ;
-
-pathMode
- : WALK
- | TRAIL
- | SIMPLE
- | ACYCLIC
- ;
-
-pathSearchPrefix
- : allPathSearch
- | anyPathSearch
- | shortestPathSearch
- ;
-
-allPathSearch
- : ALL pathMode? pathOrPaths?
- ;
-
-pathOrPaths
- : PATH
- | PATHS
- ;
-
-anyPathSearch
- : ANY numberOfPaths? pathMode? pathOrPaths?
- ;
-
-numberOfPaths
- : nonNegativeIntegerSpecification
- ;
-
-shortestPathSearch
- : allShortestPathSearch
- | anyShortestPathSearch
- | countedShortestPathSearch
- | countedShortestGroupSearch
- ;
-
-allShortestPathSearch
- : ALL SHORTEST pathMode? pathOrPaths?
- ;
-
-anyShortestPathSearch
- : ANY SHORTEST pathMode? pathOrPaths?
- ;
-
-countedShortestPathSearch
- : SHORTEST numberOfPaths pathMode? pathOrPaths?
- ;
-
-countedShortestGroupSearch
- : SHORTEST numberOfGroups? pathMode? pathOrPaths? (GROUP | GROUPS)
- ;
-
-numberOfGroups
- : nonNegativeIntegerSpecification
- ;
-
-// 16.7 <path pattern expression>
-
-pathPatternExpression
- : pathTerm #ppePathTerm
- | pathTerm (MULTISET_ALTERNATION_OPERATOR pathTerm)+ #ppeMultisetAlternation
- | pathTerm (VERTICAL_BAR pathTerm)+ #ppePatternUnion
- ;
-
-pathTerm
- : pathFactor+
- ;
-
-pathFactor
- : pathPrimary #pfPathPrimary
- | pathPrimary graphPatternQuantifier #pfQuantifiedPathPrimary
- | pathPrimary QUESTION_MARK #pfQuestionedPathPrimary
- ;
-
-pathPrimary
- : elementPattern #ppElementPattern
- | parenthesizedPathPatternExpression #ppParenthesizedPathPatternExpression
- | simplifiedPathPatternExpression #ppSimplifiedPathPatternExpression
- ;
-
-elementPattern
- : nodePattern
- | edgePattern
- ;
-
-nodePattern
- : LEFT_PAREN elementPatternFiller RIGHT_PAREN
- ;
-
-elementPatternFiller
- : elementVariableDeclaration? isLabelExpression? elementPatternPredicate?
- ;
-
-elementVariableDeclaration
- : TEMP? elementVariable
- ;
-
-isLabelExpression
- : isOrColon labelExpression
- ;
-
-isOrColon
- : IS
- | COLON
- ;
-
-elementPatternPredicate
- : elementPatternWhereClause
- | elementPropertySpecification
- ;
-
-elementPatternWhereClause
- : WHERE searchCondition
- ;
-
-elementPropertySpecification
- : LEFT_BRACE propertyKeyValuePairList RIGHT_BRACE
- ;
-
-propertyKeyValuePairList
- : propertyKeyValuePair (COMMA propertyKeyValuePair)*
- ;
-
-propertyKeyValuePair
- : propertyName COLON valueExpression
- ;
-
-edgePattern
- : fullEdgePattern
- | abbreviatedEdgePattern
- ;
-
-fullEdgePattern
- : fullEdgePointingLeft
- | fullEdgeUndirected
- | fullEdgePointingRight
- | fullEdgeLeftOrUndirected
- | fullEdgeUndirectedOrRight
- | fullEdgeLeftOrRight
- | fullEdgeAnyDirection
- ;
-
-fullEdgePointingLeft
- : LEFT_ARROW_BRACKET elementPatternFiller RIGHT_BRACKET_MINUS
- ;
-
-fullEdgeUndirected
- : TILDE_LEFT_BRACKET elementPatternFiller RIGHT_BRACKET_TILDE
- ;
-
-fullEdgePointingRight
- : MINUS_LEFT_BRACKET elementPatternFiller BRACKET_RIGHT_ARROW
- ;
-
-fullEdgeLeftOrUndirected
- : LEFT_ARROW_TILDE_BRACKET elementPatternFiller RIGHT_BRACKET_TILDE
- ;
-
-fullEdgeUndirectedOrRight
- : TILDE_LEFT_BRACKET elementPatternFiller BRACKET_TILDE_RIGHT_ARROW
- ;
-
-fullEdgeLeftOrRight
- : LEFT_ARROW_BRACKET elementPatternFiller BRACKET_RIGHT_ARROW
- ;
-
-fullEdgeAnyDirection
- : MINUS_LEFT_BRACKET elementPatternFiller RIGHT_BRACKET_MINUS
- ;
-
-abbreviatedEdgePattern
- : LEFT_ARROW
- | TILDE
- | RIGHT_ARROW
- | LEFT_ARROW_TILDE
- | TILDE_RIGHT_ARROW
- | LEFT_MINUS_RIGHT
- | MINUS_SIGN
- ;
-
-parenthesizedPathPatternExpression
- : LEFT_PAREN subpathVariableDeclaration? pathModePrefix? pathPatternExpression parenthesizedPathPatternWhereClause? RIGHT_PAREN
- ;
-
-subpathVariableDeclaration
- : subpathVariable EQUALS_OPERATOR
- ;
-
-parenthesizedPathPatternWhereClause
- : WHERE searchCondition
- ;
-
-// 16.8 <label expression>
-
-labelExpression
- : EXCLAMATION_MARK labelExpression #labelExpressionNegation
- | labelExpression AMPERSAND labelExpression #labelExpressionConjunction
- | labelExpression VERTICAL_BAR labelExpression #labelExpressionDisjunction
- | labelName #labelExpressionName
- | PERCENT #labelExpressionWildcard
- | LEFT_PAREN labelExpression RIGHT_PAREN #labelExpressionParenthesized
- ;
-
-// 16.9 <path variable reference>
-
-pathVariableReference
- : bindingVariableReference
- ;
-
-// 16.10 <element variable reference>
-
-elementVariableReference
- : bindingVariableReference
- ;
-
-// 16.11 <graph pattern quantifier>
-
-graphPatternQuantifier
- : ASTERISK
- | PLUS_SIGN
- | fixedQuantifier
- | generalQuantifier
- ;
-
-fixedQuantifier
- : LEFT_BRACE unsignedInteger RIGHT_BRACE
- ;
-
-generalQuantifier
- : LEFT_BRACE lowerBound? COMMA upperBound? RIGHT_BRACE
- ;
-
-lowerBound
- : unsignedInteger
- ;
-
-upperBound
- : unsignedInteger
- ;
-
-// 16.12 <simplified path pattern expression>
-
-simplifiedPathPatternExpression
- : simplifiedDefaultingLeft
- | simplifiedDefaultingUndirected
- | simplifiedDefaultingRight
- | simplifiedDefaultingLeftOrUndirected
- | simplifiedDefaultingUndirectedOrRight
- | simplifiedDefaultingLeftOrRight
- | simplifiedDefaultingAnyDirection
- ;
-
-simplifiedDefaultingLeft
- : LEFT_MINUS_SLASH simplifiedContents SLASH_MINUS
- ;
-
-simplifiedDefaultingUndirected
- : TILDE_SLASH simplifiedContents SLASH_TILDE
- ;
-
-simplifiedDefaultingRight
- : MINUS_SLASH simplifiedContents SLASH_MINUS_RIGHT
- ;
-
-simplifiedDefaultingLeftOrUndirected
- : LEFT_TILDE_SLASH simplifiedContents SLASH_TILDE
- ;
-
-simplifiedDefaultingUndirectedOrRight
- : TILDE_SLASH simplifiedContents SLASH_TILDE_RIGHT
- ;
-
-simplifiedDefaultingLeftOrRight
- : LEFT_MINUS_SLASH simplifiedContents SLASH_MINUS_RIGHT
- ;
-
-simplifiedDefaultingAnyDirection
- : MINUS_SLASH simplifiedContents SLASH_MINUS
- ;
-
-simplifiedContents
- : simplifiedTerm
- | simplifiedPathUnion
- | simplifiedMultisetAlternation
- ;
-
-simplifiedPathUnion
- : simplifiedTerm VERTICAL_BAR simplifiedTerm (VERTICAL_BAR simplifiedTerm)*
- ;
-
-simplifiedMultisetAlternation
- : simplifiedTerm MULTISET_ALTERNATION_OPERATOR simplifiedTerm (MULTISET_ALTERNATION_OPERATOR simplifiedTerm)*
- ;
-
-simplifiedTerm
- : simplifiedFactorLow #simplifiedFactorLowLabel
- | simplifiedTerm simplifiedFactorLow #simplifiedConcatenationLabel
- ;
-
-simplifiedFactorLow
- : simplifiedFactorHigh #simplifiedFactorHighLabel
- | simplifiedFactorLow AMPERSAND simplifiedFactorHigh #simplifiedConjunctionLabel
- ;
-
-simplifiedFactorHigh
- : simplifiedTertiary
- | simplifiedQuantified
- | simplifiedQuestioned
- ;
-
-simplifiedQuantified
- : simplifiedTertiary graphPatternQuantifier
- ;
-
-simplifiedQuestioned
- : simplifiedTertiary QUESTION_MARK
- ;
-
-simplifiedTertiary
- : simplifiedDirectionOverride
- | simplifiedSecondary
- ;
-
-simplifiedDirectionOverride
- : simplifiedOverrideLeft
- | simplifiedOverrideUndirected
- | simplifiedOverrideRight
- | simplifiedOverrideLeftOrUndirected
- | simplifiedOverrideUndirectedOrRight
- | simplifiedOverrideLeftOrRight
- | simplifiedOverrideAnyDirection
- ;
-
-simplifiedOverrideLeft
- : LEFT_ANGLE_BRACKET simplifiedSecondary
- ;
-
-simplifiedOverrideUndirected
- : TILDE simplifiedSecondary
- ;
-
-simplifiedOverrideRight
- : simplifiedSecondary RIGHT_ANGLE_BRACKET
- ;
-
-simplifiedOverrideLeftOrUndirected
- : LEFT_ARROW_TILDE simplifiedSecondary
- ;
-
-simplifiedOverrideUndirectedOrRight
- : TILDE simplifiedSecondary RIGHT_ANGLE_BRACKET
- ;
-
-simplifiedOverrideLeftOrRight
- : LEFT_ANGLE_BRACKET simplifiedSecondary RIGHT_ANGLE_BRACKET
- ;
-
-simplifiedOverrideAnyDirection
- : MINUS_SIGN simplifiedSecondary
- ;
-
-simplifiedSecondary
- : simplifiedPrimary
- | simplifiedNegation
- ;
-
-simplifiedNegation
- : EXCLAMATION_MARK simplifiedPrimary
- ;
-
-simplifiedPrimary
- : labelName
- | LEFT_PAREN simplifiedContents RIGHT_PAREN
- ;
-
-// 16.13 <where clause>
-
-whereClause
- : WHERE searchCondition
- ;
-
-// 16.14 <yield clause>
-
-yieldClause
- : YIELD yieldItemList
- ;
-
-yieldItemList
- : yieldItem (COMMA yieldItem)*
- ;
-
-yieldItem
- : (yieldItemName yieldItemAlias?)
- ;
-
-yieldItemName
- : fieldName
- ;
-
-yieldItemAlias
- : AS bindingVariable
- ;
-
-// 16.15 <group by clasue>
-
-groupByClause
- : GROUP BY groupingElementList
- ;
-
-groupingElementList
- : groupingElement (COMMA groupingElement)*
- | emptyGroupingSet
- ;
-
-groupingElement
- : bindingVariableReference
- ;
-
-emptyGroupingSet
- : LEFT_PAREN RIGHT_PAREN
- ;
-
-// 16.16 <order by clasue>
-
-orderByClause
- : ORDER BY sortSpecificationList
- ;
-
-// 16.17 <sort specification list>
-
-sortSpecificationList
- : sortSpecification (COMMA sortSpecification)*
- ;
-
-sortSpecification
- : sortKey orderingSpecification? nullOrdering?
- ;
-
-sortKey
- : aggregatingValueExpression
- ;
-
-orderingSpecification
- : ASC
- | ASCENDING
- | DESC
- | DESCENDING
- ;
-
-nullOrdering
- : NULLS FIRST
- | NULLS LAST
- ;
-
-// 16.18 <limit clause>
-
-limitClause
- : LIMIT nonNegativeIntegerSpecification
- ;
-
-// 16.19 <offset clause>
-
-offsetClause
- : offsetSynonym nonNegativeIntegerSpecification
- ;
-
-offsetSynonym
- : OFFSET
- | SKIP_RESERVED_WORD
- ;
-
-// 17.1 <schema reference> and <catalog schema parent name>
-
-schemaReference
- : absoluteCatalogSchemaReference
- | relativeCatalogSchemaReference
- | referenceParameterSpecification
- ;
-
-absoluteCatalogSchemaReference
- : SOLIDUS
- | absoluteDirectoryPath schemaName
- ;
-
-catalogSchemaParentAndName
- : absoluteDirectoryPath schemaName
- ;
-
-relativeCatalogSchemaReference
- : predefinedSchemaReference
- | relativeDirectoryPath schemaName
- ;
-
-predefinedSchemaReference
- : HOME_SCHEMA
- | CURRENT_SCHEMA
- | PERIOD
- ;
-
-absoluteDirectoryPath
- : SOLIDUS simpleDirectoryPath?
- ;
-
-relativeDirectoryPath
- : DOUBLE_PERIOD (SOLIDUS DOUBLE_PERIOD)* SOLIDUS simpleDirectoryPath?
- ;
-
-simpleDirectoryPath
- : (directoryName SOLIDUS)+
- ;
-
-// 17.2 <graph reference> and <catalog graph parent and name>
-
-graphReference
- : catalogObjectParentReference graphName
- | delimitedGraphName
- | homeGraph
- | referenceParameterSpecification
- ;
-
-catalogGraphParentAndName
- : catalogObjectParentReference? graphName
- ;
-
-homeGraph
- : HOME_PROPERTY_GRAPH
- | HOME_GRAPH
- ;
-
-// 17.3 <graph type reference> and <catalog graph type parent and name>
-
-graphTypeReference
- : catalogGraphTypeParentAndName
- | referenceParameterSpecification
- ;
-
-catalogGraphTypeParentAndName
- : catalogObjectParentReference? graphTypeName
- ;
-
-// 17.4 <binding table reference> and <catalog binding table parent name>
-
-bindingTableReference
- : catalogObjectParentReference bindingTableName
- | delimitedBindingTableName
- | referenceParameterSpecification
- ;
-
-// 17.5 <procedure reference> and <catalog procedure parent and name>
-
-procedureReference
- : catalogProcedureParentAndName
- | referenceParameterSpecification
- ;
-
-catalogProcedureParentAndName
- : catalogObjectParentReference? procedureName
- ;
-
-// 17.6 <catalog object parent reference>
-
-catalogObjectParentReference
- : schemaReference SOLIDUS? (objectName PERIOD)*
- | (objectName PERIOD)+
- ;
-
-// 17.7 <reference parameter specification>
-
-referenceParameterSpecification
- : SUBSTITUTED_PARAMETER_REFERENCE
- ;
-
-// 18.1 <nested graph type specification>
-
-nestedGraphTypeSpecification
- : LEFT_BRACE graphTypeSpecificationBody RIGHT_BRACE
- ;
-
-graphTypeSpecificationBody
- : elementTypeList
- ;
-
-elementTypeList
- : elementTypeSpecification (COMMA elementTypeSpecification)*
- ;
-
-elementTypeSpecification
- : nodeTypeSpecification
- | edgeTypeSpecification
- ;
-
-// 18.2 <node type specification>
-
-nodeTypeSpecification
- : nodeTypePattern
- | nodeTypePhrase
- ;
-
-nodeTypePattern
- : (nodeSynonym TYPE? nodeTypeName)? LEFT_PAREN localNodeTypeAlias? nodeTypeFiller? RIGHT_PAREN
- ;
-
-nodeTypePhrase
- : nodeSynonym TYPE? nodeTypePhraseFiller (AS localNodeTypeAlias)?
- ;
-
-nodeTypePhraseFiller
- : nodeTypeName nodeTypeFiller?
- | nodeTypeFiller
- ;
-
-nodeTypeFiller
- : nodeTypeKeyLabelSet nodeTypeImpliedContent?
- | nodeTypeImpliedContent
- ;
-
-localNodeTypeAlias
- : regularIdentifier
- ;
-
-nodeTypeImpliedContent
- : nodeTypeLabelSet
- | nodeTypePropertyTypes
- | nodeTypeLabelSet nodeTypePropertyTypes
- ;
-
-nodeTypeKeyLabelSet
- : labelSetPhrase? IMPLIES
- ;
-
-nodeTypeLabelSet
- : labelSetPhrase
- ;
-
-nodeTypePropertyTypes
- : propertyTypesSpecification
- ;
-
-// 18.3 <edge type specification>
-
-edgeTypeSpecification
- : edgeTypePattern
- | edgeTypePhrase
- ;
-
-edgeTypePattern
- : (edgeKind? edgeSynonym TYPE? edgeTypeName)? (edgeTypePatternDirected | edgeTypePatternUndirected)
- ;
-
-edgeTypePhrase
- : edgeKind edgeSynonym TYPE? edgeTypePhraseFiller endpointPairPhrase
- ;
-
-edgeTypePhraseFiller
- : edgeTypeName edgeTypeFiller?
- | edgeTypeFiller
- ;
-
-edgeTypeFiller
- : edgeTypeKeyLabelSet edgeTypeImpliedContent?
- | edgeTypeImpliedContent
- ;
-
-edgeTypeImpliedContent
- : edgeTypeLabelSet
- | edgeTypePropertyTypes
- | edgeTypeLabelSet edgeTypePropertyTypes
- ;
-
-edgeTypeKeyLabelSet
- : labelSetPhrase? IMPLIES
- ;
-
-edgeTypeLabelSet
- : labelSetPhrase
- ;
-
-edgeTypePropertyTypes
- : propertyTypesSpecification
- ;
-
-edgeTypePatternDirected
- : edgeTypePatternPointingRight
- | edgeTypePatternPointingLeft
- ;
-
-edgeTypePatternPointingRight
- : sourceNodeTypeReference arcTypePointingRight destinationNodeTypeReference
- ;
-
-edgeTypePatternPointingLeft
- : destinationNodeTypeReference arcTypePointingLeft sourceNodeTypeReference
- ;
-
-edgeTypePatternUndirected
- : sourceNodeTypeReference arcTypeUndirected destinationNodeTypeReference
- ;
-
-arcTypePointingRight
- : MINUS_LEFT_BRACKET edgeTypeFiller BRACKET_RIGHT_ARROW
- ;
-
-arcTypePointingLeft
- : LEFT_ARROW_BRACKET edgeTypeFiller RIGHT_BRACKET_MINUS
- ;
-
-arcTypeUndirected
- : TILDE_LEFT_BRACKET edgeTypeFiller RIGHT_BRACKET_TILDE
- ;
-
-sourceNodeTypeReference
- : LEFT_PAREN sourceNodeTypeAlias RIGHT_PAREN
- | LEFT_PAREN nodeTypeFiller? RIGHT_PAREN
- ;
-
-destinationNodeTypeReference
- : LEFT_PAREN destinationNodeTypeAlias RIGHT_PAREN
- | LEFT_PAREN nodeTypeFiller? RIGHT_PAREN
- ;
-
-edgeKind
- : DIRECTED
- | UNDIRECTED
- ;
-
-endpointPairPhrase
- : CONNECTING endpointPair
- ;
-
-endpointPair
- : endpointPairDirected
- | endpointPairUndirected
- ;
-
-endpointPairDirected
- : endpointPairPointingRight
- | endpointPairPointingLeft
- ;
-
-endpointPairPointingRight
- : LEFT_PAREN sourceNodeTypeAlias connectorPointingRight destinationNodeTypeAlias RIGHT_PAREN
- ;
-
-endpointPairPointingLeft
- : LEFT_PAREN destinationNodeTypeAlias LEFT_ARROW sourceNodeTypeAlias RIGHT_PAREN
- ;
-
-endpointPairUndirected
- : LEFT_PAREN sourceNodeTypeAlias connectorUndirected destinationNodeTypeAlias RIGHT_PAREN
- ;
-
-connectorPointingRight
- : TO
- | RIGHT_ARROW
- ;
-
-connectorUndirected
- : TO
- | TILDE
- ;
-
-sourceNodeTypeAlias
- : regularIdentifier
- ;
-
-destinationNodeTypeAlias
- : regularIdentifier
- ;
-
-// 18.4 <label set phrase> and <label set specification>
-
-labelSetPhrase
- : LABEL labelName
- | LABELS labelSetSpecification
- | isOrColon labelSetSpecification
- ;
-
-labelSetSpecification
- : labelName (AMPERSAND labelName)*
- ;
-
-// 18.5 <property types specification>
-
-propertyTypesSpecification
- : LEFT_BRACE propertyTypeList? RIGHT_BRACE
- ;
-
-propertyTypeList
- : propertyType (COMMA propertyType)*
- ;
-
-// 18.6 <property type>
-
-propertyType
- : propertyName typed? propertyValueType
- ;
-
-// 18.7 <property value type>
-
-propertyValueType
- : valueType
- ;
-
-// 18.8 <binding table type>
-
-bindingTableType
- : BINDING? TABLE fieldTypesSpecification
- ;
-
-// 18.9 <value type>
-
-valueType
- : predefinedType #predefinedTypeLabel
- // <constructed value type>
- | pathValueType #pathValueTypeLabel
- | listValueTypeName LEFT_ANGLE_BRACKET valueType RIGHT_ANGLE_BRACKET (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt1
- | valueType listValueTypeName (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt2
- | listValueTypeName (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt3
- | recordType #recordTypeLabel
- // <dynamic union type>
- | ANY VALUE? notNull? #openDynamicUnionTypeLabel
- | ANY? PROPERTY VALUE notNull? #dynamicPropertyValueTypeLabel
- // <closed dynamic union type>
- | ANY VALUE? LEFT_ANGLE_BRACKET valueType (VERTICAL_BAR valueType)* RIGHT_ANGLE_BRACKET #closedDynamicUnionTypeAtl1
- | valueType VERTICAL_BAR valueType #closedDynamicUnionTypeAtl2
- ;
-
-typed
- : DOUBLE_COLON
- | TYPED
- ;
-
-predefinedType
- : booleanType
- | characterStringType
- | byteStringType
- | numericType
- | temporalType
- | referenceValueType
- | immaterialValueType
- ;
-
-booleanType
- : (BOOL | BOOLEAN) notNull?
- ;
-
-characterStringType
- : STRING (LEFT_PAREN (minLength COMMA)? maxLength RIGHT_PAREN)? notNull?
- | CHAR (LEFT_PAREN fixedLength RIGHT_PAREN)? notNull?
- | VARCHAR (LEFT_PAREN maxLength RIGHT_PAREN)? notNull?
- ;
-
-byteStringType
- : BYTES (LEFT_PAREN (minLength COMMA)? maxLength RIGHT_PAREN)? notNull?
- | BINARY (LEFT_PAREN fixedLength RIGHT_PAREN)? notNull?
- | VARBINARY (LEFT_PAREN maxLength RIGHT_PAREN)? notNull?
- ;
-
-minLength
- : unsignedInteger
- ;
-
-maxLength
- : unsignedInteger
- ;
-
-fixedLength
- : unsignedInteger
- ;
-
-numericType
- : exactNumericType
- | approximateNumericType
- ;
-
-exactNumericType
- : binaryExactNumericType
- | decimalExactNumericType
- ;
-
-binaryExactNumericType
- : signedBinaryExactNumericType
- | unsignedBinaryExactNumericType
- ;
-
-signedBinaryExactNumericType
- : INT8 notNull?
- | INT16 notNull?
- | INT32 notNull?
- | INT64 notNull?
- | INT128 notNull?
- | INT256 notNull?
- | SMALLINT notNull?
- | INT (LEFT_PAREN precision RIGHT_PAREN)? notNull?
- | BIGINT notNull?
- | SIGNED? verboseBinaryExactNumericType
- ;
-
-unsignedBinaryExactNumericType
- : UINT8 notNull?
- | UINT16 notNull?
- | UINT32 notNull?
- | UINT64 notNull?
- | UINT128 notNull?
- | UINT256 notNull?
- | USMALLINT notNull?
- | UINT (LEFT_PAREN precision RIGHT_PAREN)? notNull?
- | UBIGINT notNull?
- | UNSIGNED verboseBinaryExactNumericType
- ;
-
-verboseBinaryExactNumericType
- : INTEGER8 notNull?
- | INTEGER16 notNull?
- | INTEGER32 notNull?
- | INTEGER64 notNull?
- | INTEGER128 notNull?
- | INTEGER256 notNull?
- | SMALL INTEGER notNull?
- | INTEGER (LEFT_PAREN precision RIGHT_PAREN)? notNull?
- | BIG INTEGER notNull?
- ;
-
-decimalExactNumericType
- : (DECIMAL | DEC) (LEFT_PAREN precision (COMMA scale)? RIGHT_PAREN notNull?)?
- ;
-
-precision
- : unsignedDecimalInteger
- ;
-
-scale
- : unsignedDecimalInteger
- ;
-
-approximateNumericType
- : FLOAT16 notNull?
- | FLOAT32 notNull?
- | FLOAT64 notNull?
- | FLOAT128 notNull?
- | FLOAT256 notNull?
- | FLOAT (LEFT_PAREN precision (COMMA scale)? RIGHT_PAREN)? notNull?
- | REAL notNull?
- | DOUBLE PRECISION? notNull?
- ;
-
-temporalType
- : temporalInstantType
- | temporalDurationType
- ;
-
-temporalInstantType
- : datetimeType
- | localdatetimeType
- | dateType
- | timeType
- | localtimeType
- ;
-
-datetimeType
- : ZONED DATETIME notNull?
- | TIMESTAMP WITH TIME ZONE notNull?
- ;
-
-localdatetimeType
- : LOCAL DATETIME notNull?
- | TIMESTAMP (WITHOUT TIME ZONE)? notNull?
- ;
-
-dateType
- : DATE notNull?
- ;
-
-timeType
- : ZONED TIME notNull?
- | TIME WITH TIME ZONE notNull?
- ;
-
-localtimeType
- : LOCAL TIME notNull?
- | TIME WITHOUT TIME ZONE notNull?
- ;
-
-temporalDurationType
- : DURATION LEFT_PAREN temporalDurationQualifier RIGHT_PAREN notNull?
- ;
-
-temporalDurationQualifier
- : YEAR TO MONTH
- | DAY TO SECOND
- ;
-
-referenceValueType
- : graphReferenceValueType
- | bindingTableReferenceValueType
- | nodeReferenceValueType
- | edgeReferenceValueType
- ;
-
-immaterialValueType
- : nullType
- | emptyType
- ;
-
-nullType
- : NULL
- ;
-
-emptyType
- : NULL notNull
- | NOTHING
- ;
-
-graphReferenceValueType
- : openGraphReferenceValueType
- | closedGraphReferenceValueType
- ;
-
-closedGraphReferenceValueType
- : PROPERTY? GRAPH nestedGraphTypeSpecification notNull?
- ;
-
-openGraphReferenceValueType
- : ANY PROPERTY? GRAPH notNull?
- ;
-
-bindingTableReferenceValueType
- : bindingTableType notNull?
- ;
-
-nodeReferenceValueType
- : openNodeReferenceValueType
- | closedNodeReferenceValueType
- ;
-
-closedNodeReferenceValueType
- : nodeTypeSpecification notNull?
- ;
-
-openNodeReferenceValueType
- : ANY? nodeSynonym notNull?
- ;
-
-edgeReferenceValueType
- : openEdgeReferenceValueType
- | closedEdgeReferenceValueType
- ;
-
-closedEdgeReferenceValueType
- : edgeTypeSpecification notNull?
- ;
-
-openEdgeReferenceValueType
- : ANY? edgeSynonym notNull?
- ;
-
-pathValueType
- : PATH notNull?
- ;
-
-listValueTypeName
- : GROUP? listValueTypeNameSynonym
- ;
-
-listValueTypeNameSynonym
- : LIST
- | ARRAY
- ;
-
-recordType
- : ANY? RECORD notNull?
- | RECORD? fieldTypesSpecification notNull?
- ;
-
-fieldTypesSpecification
- : LEFT_BRACE fieldTypeList? RIGHT_BRACE
- ;
-
-fieldTypeList
- : fieldType (COMMA fieldType)*
- ;
-
-notNull
- : NOT NULL
- ;
-
-// 18.10 <field type>
-
-fieldType
- : fieldName typed? valueType
- ;
-
-// 19.1 <search condition>
-
-searchCondition
- : booleanValueExpression
- ;
-
-// 19.2 <predicate>
-
-predicate
- : existsPredicate
- | nullPredicate
- | valueTypePredicate
- | directedPredicate
- | labeledPredicate
- | sourceDestinationPredicate
- | all_differentPredicate
- | samePredicate
- | property_existsPredicate
- ;
-
-// 19.3 <comparison predicate>
-
-// The <comparison predicate> productions moved to valueExpression
-// to avoid left mutually recursive productions.
-
-comparisonPredicatePart2
- : compOp valueExpression
- ;
-
-compOp
- : EQUALS_OPERATOR
- | NOT_EQUALS_OPERATOR
- | LEFT_ANGLE_BRACKET
- | RIGHT_ANGLE_BRACKET
- | LESS_THAN_OR_EQUALS_OPERATOR
- | GREATER_THAN_OR_EQUALS_OPERATOR
- ;
-
-// 19.4 <exists predicate>
-
-existsPredicate
- : EXISTS (LEFT_BRACE graphPattern RIGHT_BRACE | LEFT_PAREN graphPattern RIGHT_PAREN | LEFT_BRACE matchStatementBlock RIGHT_BRACE | LEFT_PAREN matchStatementBlock RIGHT_PAREN | nestedQuerySpecification)
- ;
-
-// 19.5 <null predicate>
-
-nullPredicate
- : valueExpressionPrimary nullPredicatePart2
- ;
-
-nullPredicatePart2
- : IS NOT? NULL
- ;
-
-// 19.6 <value type predicate>
-
-valueTypePredicate
- : valueExpressionPrimary valueTypePredicatePart2
- ;
-
-valueTypePredicatePart2
- : IS NOT? typed valueType
- ;
-
-// 19.7 <normalized predicate>
-
-normalizedPredicatePart2
- : IS NOT? normalForm? NORMALIZED
- ;
-
-// 19.8 <directed predicate>
-
-directedPredicate
- : elementVariableReference directedPredicatePart2
- ;
-
-directedPredicatePart2
- : IS NOT? DIRECTED
- ;
-
-// 19.9 <labled predicate>
-
-labeledPredicate
- : elementVariableReference labeledPredicatePart2
- ;
-
-labeledPredicatePart2
- : isLabeledOrColon labelExpression
- ;
-
-isLabeledOrColon
- : IS NOT? LABELED
- | COLON
- ;
-
-// 19.10 <source/destination predicate>
-
-sourceDestinationPredicate
- : nodeReference sourcePredicatePart2
- | nodeReference destinationPredicatePart2
- ;
-
-nodeReference
- : elementVariableReference
- ;
-
-sourcePredicatePart2
- : IS NOT? SOURCE OF edgeReference
- ;
-
-destinationPredicatePart2
- : IS NOT? DESTINATION OF edgeReference
- ;
-
-edgeReference
- : elementVariableReference
- ;
-
-// 19.11 <all different predicate>
-
-all_differentPredicate
- : ALL_DIFFERENT LEFT_PAREN elementVariableReference COMMA elementVariableReference (COMMA elementVariableReference)* RIGHT_PAREN
- ;
-
-// 19.12 <same predicate>
-
-samePredicate
- : SAME LEFT_PAREN elementVariableReference COMMA elementVariableReference (COMMA elementVariableReference)* RIGHT_PAREN
- ;
-
-// 19.13 <property exists predicate>
-
-property_existsPredicate
- : PROPERTY_EXISTS LEFT_PAREN elementVariableReference COMMA propertyName RIGHT_PAREN
- ;
-
-// 20.1 <value expression>
-
-// This version of valueExpression sucks up rules broken out in the standard to a single production. This
-// eliminates ambiguity in multiple rules specifying valueExpressionPrimary.
-
-valueExpression
- // Numeric, datetime and duration types all support roughly the same expressions. So here
- // we define a rule that deals with all of them. It is up to the implementation to post
- // process the sytnax tree and flag invalid type and function combinations.
- : sign = (PLUS_SIGN | MINUS_SIGN) valueExpression #signedExprAlt
- | valueExpression operator = (ASTERISK | SOLIDUS) valueExpression #multDivExprAlt
- | valueExpression operator = (PLUS_SIGN | MINUS_SIGN) valueExpression #addSubtractExprAlt
- // Character strings, byte strings, lists and paths all support the same concatenation
- // operator. So here we define a rule that deals with all of them. Of course the types
- // cannot be combined. So it is up to implementation to post process the sytax tree
- // and flag invalid type and function combinations.
- | valueExpression CONCATENATION_OPERATOR valueExpression #concatenationExprAlt
- // Boolean value expression included here.
- | NOT valueExpression #notExprAlt
- | valueExpression IS NOT? truthValue #isNotExprAlt
- | valueExpression AND valueExpression #conjunctiveExprAlt
- | valueExpression operator = (OR | XOR) valueExpression #disjunctiveExprAlt
- // The comparisonPredicate productions moved here to eliminate left mutual recursion.
- | valueExpression comparisonPredicatePart2 #comparisonExprAlt
- | predicate #predicateExprAlt
- // The normalizedPredicate productions moved here to eliminate left mutual recursion.
- | valueExpression normalizedPredicatePart2 #normalizedPredicateExprAlt
- | PROPERTY? GRAPH graphExpression #propertyGraphExprAlt
- | BINDING? TABLE bindingTableExpression #bindingTableExprAlt
- | valueFunction #valueFunctionExprAlt
- | valueExpressionPrimary #primaryExprAlt
- ;
-
-valueFunction
- : numericValueFunction
- | datetimeSubtraction
- | datetimeValueFunction
- | durationValueFunction
- | characterOrByteStringFunction
- | listValueFunction
- ;
-
-booleanValueExpression
- : valueExpression
- ;
-
-characterOrByteStringFunction
- : subCharacterOrByteString
- | trimSingleCharacterOrByteString
- | foldCharacterString
- | trimMultiCharacterCharacterString
- | normalizeCharacterString
- ;
-
-subCharacterOrByteString
- : (LEFT | RIGHT) LEFT_PAREN valueExpression COMMA stringLength RIGHT_PAREN
- ;
-
-trimSingleCharacterOrByteString
- : TRIM LEFT_PAREN trimOperands RIGHT_PAREN
- ;
-
-foldCharacterString
- : (UPPER | LOWER) LEFT_PAREN valueExpression RIGHT_PAREN
- ;
-
-trimMultiCharacterCharacterString
- : (BTRIM | LTRIM | RTRIM) LEFT_PAREN valueExpression (COMMA valueExpression)? RIGHT_PAREN
- ;
-
-normalizeCharacterString
- : NORMALIZE LEFT_PAREN valueExpression (COMMA normalForm)? RIGHT_PAREN
- ;
-
-nodeReferenceValueExpression
- : valueExpressionPrimary
- ;
-
-edgeReferenceValueExpression
- : valueExpressionPrimary
- ;
-
-aggregatingValueExpression
- : valueExpression
- ;
-
-// 20.2 <value expression primary>
-
-valueExpressionPrimary
- : parenthesizedValueExpression
- | aggregateFunction
- | unsignedValueSpecification
-// List and Record literals are reduntantly/abiguously part of the literal production
-// | listValueConstructor
-// | recordConstructor
- | pathValueConstructor
- | valueExpressionPrimary PERIOD propertyName // <propertyReference
- | valueQueryExpression
- | caseExpression
- | castSpecification
- | element_idFunction
- | letValueExpression
- | bindingVariableReference
- ;
-
-parenthesizedValueExpression
- : LEFT_PAREN valueExpression RIGHT_PAREN
- ;
-
-nonParenthesizedValueExpressionPrimary
- : nonParenthesizedValueExpressionPrimarySpecialCase
- | bindingVariableReference
- ;
-
-nonParenthesizedValueExpressionPrimarySpecialCase
- : aggregateFunction
- | unsignedValueSpecification
-// List and Record literals are reduntantly/abiguously part of the literal production
-// | listValueConstructor
-// | recordConstructor
- | pathValueConstructor
- | valueExpressionPrimary PERIOD propertyName // <property reference>
- | valueQueryExpression
- | caseExpression
- | castSpecification
- | element_idFunction
- | letValueExpression
- ;
-
-// 20.3 <value specification>
-
-unsignedValueSpecification
- : unsignedLiteral
- | generalValueSpecification
- ;
-
-nonNegativeIntegerSpecification
- : unsignedInteger
- | dynamicParameterSpecification
- ;
-
-generalValueSpecification
- : dynamicParameterSpecification
- | SESSION_USER
- ;
-
-// 20.4 <dynamic parameter specification>
-
-dynamicParameterSpecification
- : GENERAL_PARAMETER_REFERENCE
- ;
-
-// 20.5 <let value expression>
-
-letValueExpression
- : LET letVariableDefinitionList IN valueExpression END
- ;
-
-// 20.6 <value query expression>
-
-valueQueryExpression
- : VALUE nestedQuerySpecification
- ;
-
-// 20.7 <case expression>
-
-caseExpression
- : caseAbbreviation
- | caseSpecification
- ;
-
-caseAbbreviation
- : NULLIF LEFT_PAREN valueExpression COMMA valueExpression RIGHT_PAREN
- | COALESCE LEFT_PAREN valueExpression (COMMA valueExpression)+ RIGHT_PAREN
- ;
-
-caseSpecification
- : simpleCase
- | searchedCase
- ;
-
-simpleCase
- : CASE caseOperand simpleWhenClause+ elseClause? END
- ;
-
-searchedCase
- : CASE searchedWhenClause+ elseClause? END
- ;
-
-simpleWhenClause
- : WHEN whenOperandList THEN result
- ;
-
-searchedWhenClause
- : WHEN searchCondition THEN result
- ;
-
-elseClause
- : ELSE result
- ;
-
-caseOperand
- : nonParenthesizedValueExpressionPrimary
- | elementVariableReference
- ;
-
-whenOperandList
- : whenOperand (COMMA whenOperand)*
- ;
-
-whenOperand
- : nonParenthesizedValueExpressionPrimary
- | comparisonPredicatePart2
- | nullPredicatePart2
- | valueTypePredicatePart2
- | normalizedPredicatePart2
- | directedPredicatePart2
- | labeledPredicatePart2
- | sourcePredicatePart2
- | destinationPredicatePart2
- ;
-
-result
- : resultExpression
- | nullLiteral
- ;
-
-resultExpression
- : valueExpression
- ;
-
-// 20.8 <cast specification>
-
-castSpecification
- : CAST LEFT_PAREN castOperand AS castTarget RIGHT_PAREN
- ;
-
-castOperand
- : valueExpression
- | nullLiteral
- ;
-
-castTarget
- : valueType
- ;
-
-// 20.9 <aggregate function>
-
-aggregateFunction
- : COUNT LEFT_PAREN ASTERISK RIGHT_PAREN
- | generalSetFunction
- | binarySetFunction
- ;
-
-generalSetFunction
- : generalSetFunctionType LEFT_PAREN setQuantifier? valueExpression RIGHT_PAREN
- ;
-
-binarySetFunction
- : binarySetFunctionType LEFT_PAREN dependentValueExpression COMMA independentValueExpression RIGHT_PAREN
- ;
-
-generalSetFunctionType
- : AVG
- | COUNT
- | MAX
- | MIN
- | SUM
- | COLLECT_LIST
- | STDDEV_SAMP
- | STDDEV_POP
- ;
-
-setQuantifier
- : DISTINCT
- | ALL
- ;
-
-binarySetFunctionType
- : PERCENTILE_CONT
- | PERCENTILE_DISC
- ;
-
-dependentValueExpression
- : setQuantifier? numericValueExpression
- ;
-
-independentValueExpression
- : numericValueExpression
- ;
-
-// 20.10 <element_id function>
-
-element_idFunction
- : ELEMENT_ID LEFT_PAREN elementVariableReference RIGHT_PAREN
- ;
-
-// 20.11 <property reference>
-
-// 20.12 <binding variable reference>
-
-bindingVariableReference
- : bindingVariable
- ;
-
-// The path value expression was combined with list and string value expressions.
-// See listStringOrPathValueExpression.
-
-pathValueExpression
- : valueExpression
- ;
-
-// 20.14 <path value constructor>
-
-pathValueConstructor
- : pathValueConstructorByEnumeration
- ;
-
-pathValueConstructorByEnumeration
- : PATH LEFT_BRACKET pathElementList RIGHT_BRACKET
- ;
-
-pathElementList
- : pathElementListStart pathElementListStep*
- ;
-
-pathElementListStart
- : nodeReferenceValueExpression
- ;
-
-pathElementListStep
- : COMMA edgeReferenceValueExpression COMMA nodeReferenceValueExpression
- ;
-
-// 20.15 <list value expression>
-
-// The list value expression was combined with path and string value expressions.
-// See listStringOrPathValueExpression.
-
-listValueExpression
- : valueExpression
- ;
-
-// 20.16 <list value function>
-
-// Note: ByteString functions were moved to characterByteStringOrListFunction, some alternatives
-// apply to characterString, byteString and list. Breaking them out separately resulted in
-// ambiguity.
-
-listValueFunction
- : trimListFunction
- | elementsFunction
- ;
-
-trimListFunction
- : TRIM LEFT_PAREN listValueExpression COMMA numericValueExpression RIGHT_PAREN
- ;
-
-elementsFunction
- : ELEMENTS LEFT_PAREN pathValueExpression RIGHT_PAREN
- ;
-
-// 20.17 <list value constructor>
-
-listValueConstructor
- : listValueConstructorByEnumeration
- ;
-
-listValueConstructorByEnumeration
- : listValueTypeName? LEFT_BRACKET listElementList? RIGHT_BRACKET
- ;
-
-listElementList
- : listElement (COMMA listElement)*
- ;
-
-listElement
- : valueExpression
- ;
-
-// 20.18 <record constructor>
-
-recordConstructor
- : RECORD? fieldsSpecification
- ;
-
-fieldsSpecification
- : LEFT_BRACE fieldList? RIGHT_BRACE
- ;
-
-fieldList
- : field (COMMA field)*
- ;
-
-// 20.19 <field>
-
-field
- : fieldName COLON valueExpression
- ;
-
-// 20.20 <boolean value expression>
-
-// Most of <boolean value expression> is incorporated in valueExpression
-
-truthValue
- : BOOLEAN_LITERAL
- ;
-
-// 20.21 <numeric value expression>
-
-numericValueExpression
- : sign = (PLUS_SIGN | MINUS_SIGN) numericValueExpression
- | numericValueExpression operator = (ASTERISK | SOLIDUS) numericValueExpression
- | numericValueExpression operator = (PLUS_SIGN | MINUS_SIGN) numericValueExpression
- | valueExpressionPrimary
- | numericValueFunction
- ;
-
-// 20.22 <numeric value function>
-
-numericValueFunction
- : lengthExpression
- | cardinalityExpression
- | absoluteValueExpression
- | modulusExpression
- | trigonometricFunction
- | generalLogarithmFunction
- | commonLogarithm
- | naturalLogarithm
- | exponentialFunction
- | powerFunction
- | squareRoot
- | floorFunction
- | ceilingFunction
- ;
-
-lengthExpression
- : charLengthExpression
- | byteLengthExpression
- | pathLengthExpression
- ;
-
-cardinalityExpression
- : CARDINALITY LEFT_PAREN cardinalityExpressionArgument RIGHT_PAREN
- | SIZE LEFT_PAREN listValueExpression RIGHT_PAREN
- ;
-
-cardinalityExpressionArgument
- : valueExpression
- ;
-
-charLengthExpression
- : (CHAR_LENGTH | CHARACTER_LENGTH) LEFT_PAREN characterStringValueExpression RIGHT_PAREN
- ;
-
-byteLengthExpression
- : (BYTE_LENGTH | OCTET_LENGTH) LEFT_PAREN byteStringValueExpression RIGHT_PAREN
- ;
-
-pathLengthExpression
- : PATH_LENGTH LEFT_PAREN pathValueExpression RIGHT_PAREN
- ;
-
-// absoluteValueExpression applies to both numeric types and duration types. They have the same syntax.
-absoluteValueExpression
- : ABS LEFT_PAREN valueExpression RIGHT_PAREN
- ;
-
-modulusExpression
- : MOD LEFT_PAREN numericValueExpressionDividend COMMA numericValueExpressionDivisor RIGHT_PAREN
- ;
-
-numericValueExpressionDividend
- : numericValueExpression
- ;
-
-numericValueExpressionDivisor
- : numericValueExpression
- ;
-
-trigonometricFunction
- : trigonometricFunctionName LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-trigonometricFunctionName
- : SIN
- | COS
- | TAN
- | COT
- | SINH
- | COSH
- | TANH
- | ASIN
- | ACOS
- | ATAN
- | DEGREES
- | RADIANS
- ;
-
-generalLogarithmFunction
- : LOG LEFT_PAREN generalLogarithmBase COMMA generalLogarithmArgument RIGHT_PAREN
- ;
-
-generalLogarithmBase
- : numericValueExpression
- ;
-
-generalLogarithmArgument
- : numericValueExpression
- ;
-
-commonLogarithm
- : LOG10 LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-naturalLogarithm
- : LN LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-exponentialFunction
- : EXP LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-powerFunction
- : POWER LEFT_PAREN numericValueExpressionBase COMMA numericValueExpressionExponent RIGHT_PAREN
- ;
-
-numericValueExpressionBase
- : numericValueExpression
- ;
-
-numericValueExpressionExponent
- : numericValueExpression
- ;
-
-squareRoot
- : SQRT LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-floorFunction
- : FLOOR LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-ceilingFunction
- : (CEIL | CEILING) LEFT_PAREN numericValueExpression RIGHT_PAREN
- ;
-
-// 20.23 <string value expression>
-
-// The string value expressions were combined with list and path value expressions.
-
-characterStringValueExpression
- : valueExpression
- ;
-
-byteStringValueExpression
- : valueExpression
- ;
-
-// 20.24 <string value function>
-
-// Note: String functions were moved to characterByteStringOrListFunction, some alternatives
-// apply to characterString, byteString and list. Breaking them out separately resulted in
-// ambiguity.
-
-trimOperands
- : (trimSpecification? trimCharacterOrByteString? FROM)? trimCharacterOrByteStringSource
- ;
-
-trimCharacterOrByteStringSource
- : valueExpression
- ;
-
-trimSpecification
- : LEADING
- | TRAILING
- | BOTH
- ;
-
-trimCharacterOrByteString
- : valueExpression
- ;
-
-normalForm
- : NFC
- | NFD
- | NFKC
- | NFKD
- ;
-
-stringLength
- : numericValueExpression
- ;
-
-// 20.25 <byte string function>
-
-// Note: ByteString functions were moved to characterByteStringOrListFunction, some alternatives
-// apply to characterString, byteString and list. Breaking them out separately resulted in
-// ambiguity.
-
-// 20.26 <datetime value expression>
-
-// The implementation should enforce that the data type is a datetime value.
-datetimeValueExpression
- : valueExpression
- ;
-
-// 20.27 <datetime value function>
-
-datetimeValueFunction
- : dateFunction
- | timeFunction
- | datetimeFunction
- | localtimeFunction
- | localdatetimeFunction
- ;
-
-dateFunction
- : CURRENT_DATE
- | DATE LEFT_PAREN dateFunctionParameters? RIGHT_PAREN
- ;
-
-timeFunction
- : CURRENT_TIME
- | ZONED_TIME LEFT_PAREN timeFunctionParameters? RIGHT_PAREN
- ;
-
-localtimeFunction
- : LOCAL_TIME (LEFT_PAREN timeFunctionParameters? RIGHT_PAREN)?
- ;
-
-datetimeFunction
- : CURRENT_TIMESTAMP
- | ZONED_DATETIME LEFT_PAREN datetimeFunctionParameters? RIGHT_PAREN
- ;
-
-localdatetimeFunction
- : LOCAL_TIMESTAMP
- | LOCAL_DATETIME LEFT_PAREN datetimeFunctionParameters? RIGHT_PAREN
- ;
-
-dateFunctionParameters
- : dateString
- | recordConstructor
- ;
-
-timeFunctionParameters
- : timeString
- | recordConstructor
- ;
-
-datetimeFunctionParameters
- : datetimeString
- | recordConstructor
- ;
-
-// 20.28 <duration value expression>
-
-// The implemenation should enforce that the data type is a duration value.
-durationValueExpression
- : valueExpression
- ;
-
-datetimeSubtraction
- : DURATION_BETWEEN LEFT_PAREN datetimeSubtractionParameters RIGHT_PAREN temporalDurationQualifier?
- ;
-
-datetimeSubtractionParameters
- : datetimeValueExpression1 COMMA datetimeValueExpression2
- ;
-
-datetimeValueExpression1
- : datetimeValueExpression
- ;
-
-datetimeValueExpression2
- : datetimeValueExpression
- ;
-
-// 20.29 <duration value function>
-
-durationValueFunction
- : durationFunction
- | absoluteValueExpression
- ;
-
-durationFunction
- : DURATION LEFT_PAREN durationFunctionParameters RIGHT_PAREN
- ;
-
-durationFunctionParameters
- : durationString
- | recordConstructor
- ;
-
-// 21.1 Names and Variables
-
-objectName
- : identifier
- ;
-
-objectNameOrBindingVariable
- : regularIdentifier
- ;
-
-directoryName
- : identifier
- ;
-
-schemaName
- : identifier
- ;
-
-graphName
- : regularIdentifier
- | delimitedGraphName
- ;
-
-delimitedGraphName
- // DELIMITED_IDENTIFIER
- : DOUBLE_QUOTED_CHARACTER_SEQUENCE
- | ACCENT_QUOTED_CHARACTER_SEQUENCE
- ;
-
-graphTypeName
- : identifier
- ;
-
-nodeTypeName
- : identifier
- ;
-
-edgeTypeName
- : identifier
- ;
-
-bindingTableName
- : regularIdentifier
- | delimitedBindingTableName
- ;
-
-delimitedBindingTableName
- // DELIMITED_IDENTIFIER
- : DOUBLE_QUOTED_CHARACTER_SEQUENCE
- | ACCENT_QUOTED_CHARACTER_SEQUENCE
- ;
-
-procedureName
- : identifier
- ;
-
-labelName
- : identifier
- ;
-
-propertyName
- : identifier
- ;
-
-fieldName
- : identifier
- ;
-
-elementVariable
- : bindingVariable
- ;
-
-pathVariable
- : bindingVariable
- ;
-
-subpathVariable
- : regularIdentifier
- ;
-
-bindingVariable
- : regularIdentifier
- ;
-
-// 21.2 <literal>
-
-unsignedLiteral
- : unsignedNumericLiteral
- | generalLiteral
- ;
-
-generalLiteral
- : BOOLEAN_LITERAL
- | characterStringLiteral
- | BYTE_STRING_LITERAL
- | temporalLiteral
- | durationLiteral
- | nullLiteral
- | listLiteral
- | recordLiteral
- ;
-
-temporalLiteral
- : dateLiteral
- | timeLiteral
- | datetimeLiteral
-// | sqlDatetimeLiteral
- ;
-
-dateLiteral
- : DATE dateString
- ;
-
-timeLiteral
- : TIME timeString
- ;
-
-datetimeLiteral
- : (DATETIME | TIMESTAMP) datetimeString
- ;
-
-listLiteral
- : listValueConstructorByEnumeration
- ;
-
-recordLiteral
- : recordConstructor
- ;
-
-identifier
- : regularIdentifier
- // DELIMITED_IDENTIFIER
- | DOUBLE_QUOTED_CHARACTER_SEQUENCE
- | ACCENT_QUOTED_CHARACTER_SEQUENCE
- ;
-
-regularIdentifier
- : REGULAR_IDENTIFIER
- | nonReservedWords
- ;
-
-timeZoneString
- : characterStringLiteral
- ;
-
-characterStringLiteral
- : SINGLE_QUOTED_CHARACTER_SEQUENCE
- | DOUBLE_QUOTED_CHARACTER_SEQUENCE
- ;
-
-unsignedNumericLiteral
- : exactNumericLiteral
- | approximateNumericLiteral
- ;
-
-exactNumericLiteral
- : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_EXACT_NUMBER_SUFFIX
- | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_EXACT_NUMBER_SUFFIX
- | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITHOUT_SUFFIX
- | UNSIGNED_DECIMAL_INTEGER_WITH_EXACT_NUMBER_SUFFIX
- | unsignedInteger
- ;
-
-approximateNumericLiteral
- : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
- | UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITHOUT_SUFFIX
- | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
- | UNSIGNED_DECIMAL_INTEGER_WITH_APPROXIMATE_NUMBER_SUFFIX
- ;
-
-unsignedInteger
- : UNSIGNED_DECIMAL_INTEGER
- | UNSIGNED_HEXADECIMAL_INTEGER
- | UNSIGNED_OCTAL_INTEGER
- | UNSIGNED_BINARY_INTEGER
- ;
-
-unsignedDecimalInteger
- : UNSIGNED_DECIMAL_INTEGER
- ;
-
-nullLiteral
- : NULL
- ;
-
-dateString
- : characterStringLiteral
- ;
-
-timeString
- : characterStringLiteral
- ;
-
-datetimeString
- : characterStringLiteral
- ;
-
-durationLiteral
- : DURATION durationString
-// | sqlIntervalLiteral
- ;
-
-durationString
- : characterStringLiteral
- ;
-
-nodeSynonym
- : NODE
- | VERTEX
- ;
-
-edgesSynonym
- : EDGES
- | RELATIONSHIPS
- ;
-
-edgeSynonym
- : EDGE
- | RELATIONSHIP
- ;
-
-// 21.1 Names and Variables
-
-IMPLIES
- : RIGHT_DOUBLE_ARROW
- | 'IMPLIES'
- ;
-
-fragment PARAMETER_NAME
- : SEPARATED_IDENTIFIER
- ;
-
-// 21.2 <literal>
-
-nonReservedWords
- : ACYCLIC
- | BINDING
- | BINDINGS
- | CONNECTING
- | DESTINATION
- | DIFFERENT
- | DIRECTED
- | EDGE
- | EDGES
- | ELEMENT
- | ELEMENTS
- | FIRST
- | GRAPH
- | GROUPS
- | KEEP
- | LABEL
- | LABELED
- | LABELS
- | LAST
- | NFC
- | NFD
- | NFKC
- | NFKD
- | NO
- | NODE
- | NORMALIZED
- | ONLY
- | ORDINALITY
- | PROPERTY
- | READ
- | RELATIONSHIP
- | RELATIONSHIPS
- | REPEATABLE
- | SHORTEST
- | SIMPLE
- | SOURCE
- | TABLE
- | TEMP
- | TO
- | TRAIL
- | TRANSACTION
- | TYPE
- | UNDIRECTED
- | VERTEX
- | WALK
- | WITHOUT
- | WRITE
- | ZONE
- ;
-
-BOOLEAN_LITERAL
- : 'TRUE'
- | 'FALSE'
- | 'UNKNOWN'
- ;
-
-SINGLE_QUOTED_CHARACTER_SEQUENCE
- : NO_ESCAPE? UNBROKEN_SINGLE_QUOTED_CHARACTER_SEQUENCE
- ;
-
-DOUBLE_QUOTED_CHARACTER_SEQUENCE
- : NO_ESCAPE? UNBROKEN_DOUBLE_QUOTED_CHARACTER_SEQUENCE
- ;
-
-ACCENT_QUOTED_CHARACTER_SEQUENCE
- :NO_ESCAPE? UNBROKEN_ACCENT_QUOTED_CHARACTER_SEQUENCE
- ;
-
-NO_ESCAPE
- : COMMERCIAL_AT
- ;
-
-fragment UNBROKEN_SINGLE_QUOTED_CHARACTER_SEQUENCE
- : QUOTE SINGLE_QUOTED_CHARACTER_REPRESENTATION* QUOTE
- ;
-
-fragment UNBROKEN_DOUBLE_QUOTED_CHARACTER_SEQUENCE
- : DOUBLE_QUOTE DOUBLE_QUOTED_CHARACTER_REPRESENTATION* DOUBLE_QUOTE
- ;
-
-fragment UNBROKEN_ACCENT_QUOTED_CHARACTER_SEQUENCE
- : GRAVE_ACCENT ACCENT_QUOTED_CHARACTER_REPRESENTATION* GRAVE_ACCENT
- ;
-
-fragment SINGLE_QUOTED_CHARACTER_REPRESENTATION:
- (ESCAPED_CHARACTER | ~['\\\r\n])+
- ;
-
-fragment DOUBLE_QUOTED_CHARACTER_REPRESENTATION:
- (ESCAPED_CHARACTER | ~["\\\r\n])+
- ;
-
-fragment ACCENT_QUOTED_CHARACTER_REPRESENTATION:
- (ESCAPED_CHARACTER | ~[`\\\r\n])+
- ;
-
-fragment ESCAPED_CHARACTER
- : ESCAPED_REVERSE_SOLIDUS
- | ESCAPED_QUOTE
- | ESCAPED_DOUBLE_QUOTE
- | ESCAPED_GRAVE_ACCENT
- | ESCAPED_TAB
- | ESCAPED_BACKSPACE
- | ESCAPED_NEW_LINE
- | ESCAPED_CARRIAGE_RETURN
- | ESCAPED_FORM_FEED
- | ESCAPED_UNICODE4_DIGIT_VALUE
- | ESCAPED_UNICODE6_DIGIT_VALUE
- ;
-
-fragment ESCAPED_REVERSE_SOLIDUS: REVERSE_SOLIDUS REVERSE_SOLIDUS;
-fragment ESCAPED_QUOTE: REVERSE_SOLIDUS QUOTE;
-fragment ESCAPED_DOUBLE_QUOTE: REVERSE_SOLIDUS DOUBLE_QUOTE;
-fragment ESCAPED_GRAVE_ACCENT: REVERSE_SOLIDUS GRAVE_ACCENT;
-fragment ESCAPED_TAB: REVERSE_SOLIDUS 't';
-fragment ESCAPED_BACKSPACE: REVERSE_SOLIDUS 'b';
-fragment ESCAPED_NEW_LINE: REVERSE_SOLIDUS 'n';
-fragment ESCAPED_CARRIAGE_RETURN: REVERSE_SOLIDUS 'r';
-fragment ESCAPED_FORM_FEED: REVERSE_SOLIDUS 'f';
-fragment ESCAPED_UNICODE4_DIGIT_VALUE:
- REVERSE_SOLIDUS 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT;
-fragment ESCAPED_UNICODE6_DIGIT_VALUE:
- REVERSE_SOLIDUS 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT;
-
-// Todo: Finish this. It is tricky how it interacts with <separator>
-BYTE_STRING_LITERAL
- : 'X' QUOTE SPACE* (HEX_DIGIT SPACE* HEX_DIGIT SPACE*)* QUOTE
- ;
-
-UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_EXACT_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION EXACT_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITHOUT_SUFFIX
- : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION
- ;
-
-UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION APPROXIMATE_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_EXACT_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_IN_COMMON_NOTATION EXACT_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITHOUT_SUFFIX
- : UNSIGNED_DECIMAL_IN_COMMON_NOTATION
- ;
-
-UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_IN_COMMON_NOTATION APPROXIMATE_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_INTEGER_WITH_EXACT_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_INTEGER EXACT_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_INTEGER_WITH_APPROXIMATE_NUMBER_SUFFIX
- : UNSIGNED_DECIMAL_INTEGER APPROXIMATE_NUMBER_SUFFIX
- ;
-
-UNSIGNED_DECIMAL_INTEGER
- : DIGIT (UNDERSCORE? DIGIT)*
- ;
-
-fragment EXACT_NUMBER_SUFFIX
- : 'M'
- ;
-
-fragment UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION
- : MANTISSA 'E' EXPONENT
- ;
-
-fragment MANTISSA
- : UNSIGNED_DECIMAL_IN_COMMON_NOTATION
- | UNSIGNED_DECIMAL_INTEGER
- ;
-
-fragment EXPONENT
- : SIGNED_DECIMAL_INTEGER
- ;
-
-fragment UNSIGNED_DECIMAL_IN_COMMON_NOTATION
- : UNSIGNED_DECIMAL_INTEGER (PERIOD UNSIGNED_DECIMAL_INTEGER?)
- | PERIOD UNSIGNED_DECIMAL_INTEGER
- ;
-
-fragment SIGNED_DECIMAL_INTEGER
- : (PLUS_SIGN | MINUS_SIGN)? UNSIGNED_DECIMAL_INTEGER
- ;
-
-UNSIGNED_HEXADECIMAL_INTEGER
- : '0x' ('_'? HEX_DIGIT)+
- ;
-
-UNSIGNED_OCTAL_INTEGER
- : '0o' ('_'? OCTAL_DIGIT)+
- ;
-
-UNSIGNED_BINARY_INTEGER
- : '0b' ('_'? BINARY_DIGIT)+
- ;
-
-fragment APPROXIMATE_NUMBER_SUFFIX
- : 'F'
- | 'D'
- ;
-
-// 21.3 <token>, <separator>, and <identifier>
-
-// Reserved words
-ABS: 'ABS';
-ACOS: 'ACOS';
-ALL: 'ALL';
-ALL_DIFFERENT: 'ALL_DIFFERENT';
-AND: 'AND';
-ANY: 'ANY';
-ARRAY: 'ARRAY';
-AS: 'AS';
-ASC: 'ASC';
-ASCENDING: 'ASCENDING';
-ASIN: 'ASIN';
-AT: 'AT';
-ATAN: 'ATAN';
-AVG: 'AVG';
-BIG: 'BIG';
-BIGINT: 'BIGINT';
-BINARY: 'BINARY';
-BOOL: 'BOOL';
-BOOLEAN: 'BOOLEAN';
-BOTH: 'BOTH';
-BTRIM: 'BTRIM';
-BY: 'BY';
-BYTE_LENGTH: 'BYTE_LENGTH';
-BYTES: 'BYTES';
-CALL: 'CALL';
-CARDINALITY: 'CARDINALITY';
-CASE: 'CASE';
-CAST: 'CAST';
-CEIL: 'CEIL';
-CEILING: 'CEILING';
-CHAR: 'CHAR';
-CHAR_LENGTH: 'CHAR_LENGTH';
-CHARACTER_LENGTH: 'CHARACTER_LENGTH';
-CHARACTERISTICS: 'CHARACTERISTICS';
-CLOSE: 'CLOSE';
-COALESCE: 'COALESCE';
-COLLECT_LIST: 'COLLECT_LIST';
-COMMIT: 'COMMIT';
-COPY: 'COPY';
-COS: 'COS';
-COSH: 'COSH';
-COT: 'COT';
-COUNT: 'COUNT';
-CREATE: 'CREATE';
-CURRENT_DATE: 'CURRENT_DATE';
-CURRENT_GRAPH: 'CURRENT_GRAPH';
-CURRENT_PROPERTY_GRAPH: 'CURRENT_PROPERTY_GRAPH';
-CURRENT_SCHEMA: 'CURRENT_SCHEMA';
-CURRENT_TIME: 'CURRENT_TIME';
-CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP';
-DATE: 'DATE';
-DATETIME: 'DATETIME';
-DAY: 'DAY';
-DEC: 'DEC';
-DECIMAL: 'DECIMAL';
-DEGREES: 'DEGREES';
-DELETE: 'DELETE';
-DESC: 'DESC';
-DESCENDING: 'DESCENDING';
-DETACH: 'DETACH';
-DISTINCT: 'DISTINCT';
-DOUBLE: 'DOUBLE';
-DROP: 'DROP';
-DURATION: 'DURATION';
-DURATION_BETWEEN: 'DURATION_BETWEEN';
-ELEMENT_ID: 'ELEMENT_ID';
-ELSE: 'ELSE';
-END: 'END';
-EXCEPT: 'EXCEPT';
-EXISTS: 'EXISTS';
-EXP: 'EXP';
-FILTER: 'FILTER';
-FINISH: 'FINISH';
-FLOAT: 'FLOAT';
-FLOAT16: 'FLOAT16';
-FLOAT32: 'FLOAT32';
-FLOAT64: 'FLOAT64';
-FLOAT128: 'FLOAT128';
-FLOAT256: 'FLOAT256';
-FLOOR: 'FLOOR';
-FOR: 'FOR';
-FROM: 'FROM';
-GROUP: 'GROUP';
-HAVING: 'HAVING';
-HOME_GRAPH: 'HOME_GRAPH';
-HOME_PROPERTY_GRAPH: 'HOME_PROPERTY_GRAPH';
-HOME_SCHEMA: 'HOME_SCHEMA';
-HOUR: 'HOUR';
-IF: 'IF';
-IN: 'IN';
-INSERT: 'INSERT';
-INT: 'INT';
-INTEGER: 'INTEGER';
-INT8: 'INT8';
-INTEGER8: 'INTEGER8';
-INT16: 'INT16';
-INTEGER16: 'INTEGER16';
-INT32: 'INT32';
-INTEGER32: 'INTEGER32';
-INT64: 'INT64';
-INTEGER64: 'INTEGER64';
-INT128: 'INT128';
-INTEGER128: 'INTEGER128';
-INT256: 'INT256';
-INTEGER256: 'INTEGER256';
-INTERSECT: 'INTERSECT';
-INTERVAL: 'INTERVAL';
-IS: 'IS';
-LEADING: 'LEADING';
-LEFT: 'LEFT';
-LET: 'LET';
-LIKE: 'LIKE';
-LIMIT: 'LIMIT';
-LIST: 'LIST';
-LN: 'LN';
-LOCAL: 'LOCAL';
-LOCAL_DATETIME: 'LOCAL_DATETIME';
-LOCAL_TIME: 'LOCAL_TIME';
-LOCAL_TIMESTAMP: 'LOCAL_TIMESTAMP';
-LOG: 'LOG';
-LOG10: 'LOG10';
-LOWER: 'LOWER';
-LTRIM: 'LTRIM';
-MATCH: 'MATCH';
-MAX: 'MAX';
-MIN: 'MIN';
-MINUTE: 'MINUTE';
-MOD: 'MOD';
-MONTH: 'MONTH';
-NEXT: 'NEXT';
-NODETACH: 'NODETACH';
-NORMALIZE: 'NORMALIZE';
-NOT: 'NOT';
-NOTHING: 'NOTHING';
-NULL: 'NULL';
-NULLS: 'NULLS';
-NULLIF: 'NULLIF';
-OCTET_LENGTH: 'OCTET_LENGTH';
-OF: 'OF';
-OFFSET: 'OFFSET';
-OPTIONAL: 'OPTIONAL';
-OR: 'OR';
-ORDER: 'ORDER';
-OTHERWISE: 'OTHERWISE';
-PARAMETER: 'PARAMETER';
-PARAMETERS: 'PARAMETERS';
-PATH: 'PATH';
-PATH_LENGTH: 'PATH_LENGTH';
-PATHS: 'PATHS';
-PERCENTILE_CONT: 'PERCENTILE_CONT';
-PERCENTILE_DISC: 'PERCENTILE_DISC';
-POWER: 'POWER';
-PRECISION: 'PRECISION';
-PROPERTY_EXISTS: 'PROPERTY_EXISTS';
-RADIANS: 'RADIANS';
-REAL: 'REAL';
-RECORD: 'RECORD';
-REMOVE: 'REMOVE';
-REPLACE: 'REPLACE';
-RESET: 'RESET';
-RETURN: 'RETURN';
-RIGHT: 'RIGHT';
-ROLLBACK: 'ROLLBACK';
-RTRIM: 'RTRIM';
-SAME: 'SAME';
-SCHEMA: 'SCHEMA';
-SECOND: 'SECOND';
-SELECT: 'SELECT';
-SESSION: 'SESSION';
-SESSION_USER: 'SESSION_USER';
-SET: 'SET';
-SIGNED: 'SIGNED';
-SIN: 'SIN';
-SINH: 'SINH';
-SIZE: 'SIZE';
-SKIP_RESERVED_WORD: 'SKIP';
-SMALL: 'SMALL';
-SMALLINT: 'SMALLINT';
-SQRT: 'SQRT';
-START: 'START';
-STDDEV_POP: 'STDDEV_POP';
-STDDEV_SAMP: 'STDDEV_SAMP';
-STRING: 'STRING';
-SUM: 'SUM';
-TAN: 'TAN';
-TANH: 'TANH';
-THEN: 'THEN';
-TIME: 'TIME';
-TIMESTAMP: 'TIMESTAMP';
-TRAILING: 'TRAILING';
-TRIM: 'TRIM';
-TYPED: 'TYPED';
-UBIGINT: 'UBIGINT';
-UINT: 'UINT';
-UINT8: 'UINT8';
-UINT16: 'UINT16';
-UINT32: 'UINT32';
-UINT64: 'UINT64';
-UINT128: 'UINT128';
-UINT256: 'UINT256';
-UNION: 'UNION';
-UNSIGNED: 'UNSIGNED';
-UPPER: 'UPPER';
-USE: 'USE';
-USMALLINT: 'USMALLINT';
-VALUE: 'VALUE';
-VARBINARY: 'VARBINARY';
-VARCHAR: 'VARCHAR';
-VARIABLE: 'VARIABLE';
-WHEN: 'WHEN';
-WHERE: 'WHERE';
-WITH: 'WITH';
-XOR: 'XOR';
-YEAR: 'YEAR';
-YIELD: 'YIELD';
-ZONED: 'ZONED';
-ZONED_DATETIME: 'ZONED_DATETIME';
-ZONED_TIME: 'ZONED_TIME';
-
-// Prereserved words
-ABSTRACT: 'ABSTRACT';
-AGGREGATE: 'AGGREGATE';
-AGGREGATES: 'AGGREGATES';
-ALTER: 'ALTER';
-CATALOG: 'CATALOG';
-CLEAR: 'CLEAR';
-CLONE: 'CLONE';
-CONSTRAINT: 'CONSTRAINT';
-CURRENT_ROLE: 'CURRENT_ROLE';
-CURRENT_USER: 'CURRENT_USER';
-DATA: 'DATA';
-DIRECTORY: 'DIRECTORY';
-DRYRUN: 'DRYRUN';
-EXACT: 'EXACT';
-EXISTING: 'EXISTING';
-FUNCTION: 'FUNCTION';
-GQLSTATUS: 'GQLSTATUS';
-GRANT: 'GRANT';
-INSTANT: 'INSTANT';
-INFINITY: 'INFINITY';
-NUMBER: 'NUMBER';
-NUMERIC: 'NUMERIC';
-ON: 'ON';
-OPEN: 'OPEN';
-PARTITION: 'PARTITION';
-PROCEDURE: 'PROCEDURE';
-PRODUCT: 'PRODUCT';
-PROJECT: 'PROJECT';
-QUERY: 'QUERY';
-RECORDS: 'RECORDS';
-REFERENCE: 'REFERENCE';
-RENAME: 'RENAME';
-REVOKE: 'REVOKE';
-SUBSTRING: 'SUBSTRING';
-SYSTEM_USER: 'SYSTEM_USER';
-TEMPORAL: 'TEMPORAL';
-UNIQUE: 'UNIQUE';
-UNIT: 'UNIT';
-VALUES: 'VALUES';
-
-// Nonreserved words
-ACYCLIC: 'ACYCLIC';
-BINDING: 'BINDING';
-BINDINGS: 'BINDINGS';
-CONNECTING: 'CONNECTING';
-DESTINATION: 'DESTINATION';
-DIFFERENT: 'DIFFERENT';
-DIRECTED: 'DIRECTED';
-EDGE: 'EDGE';
-EDGES: 'EDGES';
-ELEMENT: 'ELEMENT';
-ELEMENTS: 'ELEMENTS';
-FIRST: 'FIRST';
-GRAPH: 'GRAPH';
-GROUPS: 'GROUPS';
-KEEP: 'KEEP';
-LABEL: 'LABEL';
-LABELED: 'LABELED';
-LABELS: 'LABELS';
-LAST: 'LAST';
-NFC: 'NFC';
-NFD: 'NFD';
-NFKC: 'NFKC';
-NFKD: 'NFKD';
-NO: 'NO';
-NODE: 'NODE';
-NORMALIZED: 'NORMALIZED';
-ONLY: 'ONLY';
-ORDINALITY: 'ORDINALITY';
-PROPERTY: 'PROPERTY';
-READ: 'READ';
-RELATIONSHIP: 'RELATIONSHIP';
-RELATIONSHIPS: 'RELATIONSHIPS';
-REPEATABLE: 'REPEATABLE';
-SHORTEST: 'SHORTEST';
-SIMPLE: 'SIMPLE';
-SOURCE: 'SOURCE';
-TABLE: 'TABLE';
-TEMP: 'TEMP';
-TO: 'TO';
-TRAIL: 'TRAIL';
-TRANSACTION: 'TRANSACTION';
-TYPE: 'TYPE';
-UNDIRECTED: 'UNDIRECTED';
-VERTEX: 'VERTEX';
-WALK: 'WALK';
-WITHOUT: 'WITHOUT';
-WRITE: 'WRITE';
-ZONE: 'ZONE';
-
-fragment SEPARATED_IDENTIFIER
- : DELIMITED_IDENTIFIER
- | EXTENDED_IDENTIFIER
- ;
-
-REGULAR_IDENTIFIER
- : IDENTIFIER_START IDENTIFIER_EXTEND*
- ;
-
-fragment EXTENDED_IDENTIFIER
- : IDENTIFIER_EXTEND+
- ;
-
-fragment DELIMITED_IDENTIFIER
- : DOUBLE_QUOTED_CHARACTER_SEQUENCE
- | ACCENT_QUOTED_CHARACTER_SEQUENCE
- ;
-
-SUBSTITUTED_PARAMETER_REFERENCE
- : DOUBLE_DOLLAR_SIGN PARAMETER_NAME
- ;
-
-GENERAL_PARAMETER_REFERENCE
- : DOLLAR_SIGN PARAMETER_NAME
- ;
-
-fragment IDENTIFIER_START
- : ID_Start
- | Pc
- ;
-
-fragment IDENTIFIER_EXTEND
- : ID_Continue
- ;
-
-fragment ID_Start
- : [\p{ID_Start}]
- ;
-
-fragment ID_Continue
- : [\p{ID_Continue}]
- ;
-
-MULTISET_ALTERNATION_OPERATOR: '|+|';
-
-BRACKET_RIGHT_ARROW: ']->';
-BRACKET_TILDE_RIGHT_ARROW: ']~>';
-CONCATENATION_OPERATOR: '||';
-DOUBLE_COLON: '::';
-DOUBLE_DOLLAR_SIGN: '$$';
-DOUBLE_PERIOD: '..';
-GREATER_THAN_OR_EQUALS_OPERATOR: '>=';
-LEFT_ARROW: '<-';
-LEFT_ARROW_TILDE: '<~';
-LEFT_ARROW_BRACKET: '<-[';
-LEFT_ARROW_TILDE_BRACKET: '<~[';
-LEFT_MINUS_RIGHT: '<->';
-LEFT_MINUS_SLASH: '<-/';
-LEFT_TILDE_SLASH: '<~/';
-LESS_THAN_OR_EQUALS_OPERATOR: '<=';
-MINUS_LEFT_BRACKET: '-[';
-MINUS_SLASH: '-/';
-NOT_EQUALS_OPERATOR: '<>';
-RIGHT_ARROW: '->';
-RIGHT_BRACKET_MINUS: ']-';
-RIGHT_BRACKET_TILDE: ']~';
-RIGHT_DOUBLE_ARROW: '=>';
-SLASH_MINUS: '/-';
-SLASH_MINUS_RIGHT: '/->';
-SLASH_TILDE: '/~';
-SLASH_TILDE_RIGHT: '/~>';
-TILDE_LEFT_BRACKET: '~[';
-TILDE_RIGHT_ARROW: '~>';
-TILDE_SLASH: '~/';
-
-// 21.4 GQL terminal characters
-
-AMPERSAND: '&';
-ASTERISK: '*';
-COLON: ':';
-COMMA: ',';
-COMMERCIAL_AT: '@';
-DOLLAR_SIGN: '$';
-DOUBLE_QUOTE: '"';
-EQUALS_OPERATOR: '=';
-EXCLAMATION_MARK: '!';
-RIGHT_ANGLE_BRACKET: '>';
-GRAVE_ACCENT: '`';
-LEFT_BRACE: '{';
-LEFT_BRACKET: '[';
-LEFT_PAREN: '(';
-LEFT_ANGLE_BRACKET: '<';
-MINUS_SIGN: '-';
-PERCENT: '%';
-PERIOD: '.';
-PLUS_SIGN: '+';
-QUESTION_MARK: '?';
-QUOTE: '\'';
-REVERSE_SOLIDUS: '\\';
-RIGHT_BRACE: '}';
-RIGHT_BRACKET: ']';
-RIGHT_PAREN: ')';
-SOLIDUS: '/';
-TILDE: '~';
-UNDERSCORE: '_';
-VERTICAL_BAR: '|';
-
-fragment HEX_DIGIT
- : [0-9a-f]
- ;
-
-fragment DIGIT
- : [0-9]
- ;
-
-fragment OCTAL_DIGIT
- : [0-7]
- ;
-
-fragment BINARY_DIGIT
- : [0-1]
- ;
-
-SP
- : (WHITESPACE)+
- -> channel(HIDDEN)
- ;
-
-WHITESPACE
- : SPACE
- | TAB
- | LF
- | VT
- | FF
- | CR
- | FS
- | GS
- | RS
- | US
- | '\u1680'
- | '\u180e'
- | '\u2000'
- | '\u2001'
- | '\u2002'
- | '\u2003'
- | '\u2004'
- | '\u2005'
- | '\u2006'
- | '\u2008'
- | '\u2009'
- | '\u200a'
- | '\u2028'
- | '\u2029'
- | '\u205f'
- | '\u3000'
- | '\u00a0'
- | '\u2007'
- | '\u202f'
- ;
-
-BRACKETED_COMMENT: '/*' .*? '*/' -> channel(HIDDEN);
-
-SIMPLE_COMMENT_SOLIDUS: '//' ~[\r\n]* -> channel(HIDDEN);
-
-SIMPLE_COMMENT_MINUS: '--' ~[\r\n]* -> channel(HIDDEN);
-
-fragment GS : [\u001D];
-
-fragment FS : [\u001C];
-
-fragment CR : [\r];
-
-fragment Sc : [\p{Sc}];
-
-fragment SPACE : [ ];
-
-fragment Pc : [\p{Pc}];
-
-fragment TAB : [\t];
-
-fragment LF : [\n];
-
-fragment VT : [\u000B];
-
-fragment US : [\u001F];
-
-fragment FF: [\f];
-
-fragment RS: [\u001E];
+ID: [a-zA-Z_][a-zA-Z_0-9]*;
+STRING: '"' .*? '"';
+INT: [0-9]+;
+FLOAT: [0-9]+ '.' [0-9]+;
+WS: [ \t\n\r]+ -> skip;
--- /dev/null
+grammar GQL;
+
+options { caseInsensitive = true; }
+
+// 6 <GQL-program>
+
+gqlProgram
+ : programActivity sessionCloseCommand? EOF
+ | sessionCloseCommand EOF
+ ;
+
+programActivity
+ : sessionActivity
+ | transactionActivity
+ ;
+
+sessionActivity
+ : sessionResetCommand+
+ | sessionSetCommand+ sessionResetCommand*
+ ;
+
+transactionActivity
+ : startTransactionCommand (procedureSpecification endTransactionCommand?)?
+ | procedureSpecification endTransactionCommand?
+ | endTransactionCommand
+ ;
+
+endTransactionCommand
+ : rollbackCommand
+ | commitCommand
+ ;
+
+// 7.1 <session set command>
+
+sessionSetCommand
+ : SESSION SET (sessionSetSchemaClause | sessionSetGraphClause | sessionSetTimeZoneClause | sessionSetParameterClause)
+ ;
+
+sessionSetSchemaClause
+ : SCHEMA schemaReference
+ ;
+
+sessionSetGraphClause
+ : PROPERTY? GRAPH graphExpression
+ ;
+
+sessionSetTimeZoneClause
+ : TIME ZONE setTimeZoneValue
+ ;
+
+setTimeZoneValue
+ : timeZoneString
+ ;
+
+sessionSetParameterClause
+ : sessionSetGraphParameterClause
+ | sessionSetBindingTableParameterClause
+ | sessionSetValueParameterClause
+ ;
+
+sessionSetGraphParameterClause
+ : PROPERTY? GRAPH sessionSetParameterName optTypedGraphInitializer
+ ;
+
+sessionSetBindingTableParameterClause
+ : BINDING? TABLE sessionSetParameterName optTypedBindingTableInitializer
+ ;
+
+sessionSetValueParameterClause
+ : VALUE sessionSetParameterName optTypedValueInitializer
+ ;
+
+sessionSetParameterName
+ : (IF NOT EXISTS)? sessionParameterSpecification
+ ;
+
+// 7.2 <session reset command>
+
+sessionResetCommand
+ : SESSION RESET sessionResetArguments?
+ ;
+
+sessionResetArguments
+ : ALL? (PARAMETERS | CHARACTERISTICS)
+ | SCHEMA
+ | PROPERTY? GRAPH
+ | TIME ZONE
+ | PARAMETER? sessionParameterSpecification
+ ;
+
+// 7.3 <session close command>
+
+sessionCloseCommand
+ : SESSION CLOSE
+ ;
+
+// 7.4 <session parameter specification>
+
+sessionParameterSpecification
+ : GENERAL_PARAMETER_REFERENCE
+ ;
+
+// 8.1 <start transaction command>
+
+startTransactionCommand
+ : START TRANSACTION transactionCharacteristics?
+ ;
+
+// 8.2 <transaction characteristics>
+
+transactionCharacteristics
+ : transactionMode (COMMA transactionMode)*
+ ;
+
+transactionMode
+ : transactionAccessMode
+ ;
+
+transactionAccessMode
+ : READ ONLY
+ | READ WRITE
+ ;
+
+// 8.3 <rollback command>
+
+rollbackCommand
+ : ROLLBACK
+ ;
+
+// 8.4 <commit command>
+
+commitCommand
+ : COMMIT
+ ;
+
+// 9.1 <nested procedure specification>
+
+nestedProcedureSpecification
+ : LEFT_BRACE procedureSpecification RIGHT_BRACE
+ ;
+
+// <catalog-modifying procedure specification>, <data-modifying procedure specification> and <query specification> are
+// identical productions. The specification distinguishes them in the BNF, but in the implementation, the distinction
+// has to be made sematically, in code, based on the kind of statements contained in the <procedure specification>.
+procedureSpecification
+ : procedureBody
+// : catalogModifyingProcedureSpecification
+// | dataModifyingProcedureSpecification
+// | querySpecification
+ ;
+
+//catalogModifyingProcedureSpecification
+// : procedureBody
+// ;
+
+nestedDataModifyingProcedureSpecification
+ : LEFT_BRACE procedureBody RIGHT_BRACE
+ ;
+
+//dataModifyingProcedureSpecification
+// : procedureBody
+// ;
+
+nestedQuerySpecification
+ : LEFT_BRACE procedureBody RIGHT_BRACE
+ ;
+
+//querySpecification
+// : procedureBody
+// ;
+
+// 9.2 <procedure body>
+
+procedureBody
+ : atSchemaClause? bindingVariableDefinitionBlock? statementBlock
+ ;
+
+bindingVariableDefinitionBlock
+ : bindingVariableDefinition+
+ ;
+
+bindingVariableDefinition
+ : graphVariableDefinition
+ | bindingTableVariableDefinition
+ | valueVariableDefinition
+ ;
+
+statementBlock
+ : statement nextStatement*
+ ;
+
+statement
+ : linearCatalogModifyingStatement
+ | linearDataModifyingStatement
+ | compositeQueryStatement
+ ;
+
+nextStatement
+ : NEXT yieldClause? statement
+ ;
+
+// 10.1 <graph variable definition>
+
+graphVariableDefinition
+ : PROPERTY? GRAPH bindingVariable optTypedGraphInitializer
+ ;
+
+optTypedGraphInitializer
+ : (typed? graphReferenceValueType)? graphInitializer
+ ;
+
+graphInitializer
+ : EQUALS_OPERATOR graphExpression
+ ;
+
+// 10.2 <binding table variable definition>
+
+bindingTableVariableDefinition
+ : BINDING? TABLE bindingVariable optTypedBindingTableInitializer
+ ;
+
+optTypedBindingTableInitializer
+ : (typed? bindingTableReferenceValueType)? bindingTableInitializer
+ ;
+
+bindingTableInitializer
+ : EQUALS_OPERATOR bindingTableExpression
+ ;
+
+// 10.3 <value variable definition>
+
+valueVariableDefinition
+ : VALUE bindingVariable optTypedValueInitializer
+ ;
+
+optTypedValueInitializer
+ : (typed? valueType)? valueInitializer
+ ;
+
+valueInitializer
+ : EQUALS_OPERATOR valueExpression
+ ;
+
+// 11.1 <graph expression>
+
+graphExpression
+ : objectExpressionPrimary
+ | graphReference
+ | objectNameOrBindingVariable
+ | currentGraph
+ ;
+
+currentGraph
+ : CURRENT_PROPERTY_GRAPH
+ | CURRENT_GRAPH
+ ;
+
+// 11.2 <binding table expression>
+
+bindingTableExpression
+ : nestedBindingTableQuerySpecification
+ | objectExpressionPrimary
+ | bindingTableReference
+ | objectNameOrBindingVariable
+ ;
+
+nestedBindingTableQuerySpecification
+ : nestedQuerySpecification
+ ;
+
+// 11.3 <object expression primary>
+
+objectExpressionPrimary
+ : VARIABLE valueExpressionPrimary
+ | parenthesizedValueExpression
+ | nonParenthesizedValueExpressionPrimarySpecialCase
+ ;
+
+// 12.1 <linear catalog-modifying statement>
+
+linearCatalogModifyingStatement
+ : simpleCatalogModifyingStatement+
+ ;
+
+simpleCatalogModifyingStatement
+ : primitiveCatalogModifyingStatement
+ | callCatalogModifyingProcedureStatement
+ ;
+
+primitiveCatalogModifyingStatement
+ : createSchemaStatement
+ | dropSchemaStatement
+ | createGraphStatement
+ | dropGraphStatement
+ | createGraphTypeStatement
+ | dropGraphTypeStatement
+ ;
+
+// 12.2 <insert schema statement>
+
+createSchemaStatement
+ : CREATE SCHEMA (IF NOT EXISTS)? catalogSchemaParentAndName
+ ;
+
+// 12.3 <drop schema statement>
+
+dropSchemaStatement
+ : DROP SCHEMA (IF EXISTS)? catalogSchemaParentAndName
+ ;
+
+// 12.4 <insert graph statement>
+
+createGraphStatement
+ : CREATE (PROPERTY? GRAPH (IF NOT EXISTS)? | OR REPLACE PROPERTY? GRAPH) catalogGraphParentAndName (openGraphType | ofGraphType) graphSource?
+ ;
+
+openGraphType
+ : typed? ANY (PROPERTY? GRAPH)?
+ ;
+
+ofGraphType
+ : graphTypeLikeGraph
+ | typed? graphTypeReference
+ | typed? (PROPERTY? GRAPH)? nestedGraphTypeSpecification
+ ;
+
+graphTypeLikeGraph
+ : LIKE graphExpression
+ ;
+
+graphSource
+ : AS COPY OF graphExpression
+ ;
+
+// 12.5 <drop graph statement>
+
+dropGraphStatement
+ : DROP PROPERTY? GRAPH (IF EXISTS)? catalogGraphParentAndName
+ ;
+
+// 12.6 <graph type statement>
+
+createGraphTypeStatement
+ : CREATE (PROPERTY? GRAPH TYPE (IF NOT EXISTS)? | OR REPLACE PROPERTY? GRAPH TYPE) catalogGraphTypeParentAndName graphTypeSource
+ ;
+
+graphTypeSource
+ : AS? copyOfGraphType
+ | graphTypeLikeGraph
+ | AS? nestedGraphTypeSpecification
+ ;
+
+copyOfGraphType
+ : COPY OF graphTypeReference
+ ;
+
+// 12.7 <drop graph statement>
+
+dropGraphTypeStatement
+ : DROP PROPERTY? GRAPH TYPE (IF EXISTS)? catalogGraphTypeParentAndName
+ ;
+
+// 12.8 <call catalog-modifying statement>
+
+callCatalogModifyingProcedureStatement
+ : callProcedureStatement
+ ;
+
+// 13.1 <linear data-modifying statement>
+
+linearDataModifyingStatement
+ : focusedLinearDataModifyingStatement
+ | ambientLinearDataModifyingStatement
+ ;
+
+focusedLinearDataModifyingStatement
+ : focusedLinearDataModifyingStatementBody
+ | focusedNestedDataModifyingProcedureSpecification
+ ;
+
+focusedLinearDataModifyingStatementBody
+ : useGraphClause simpleLinearDataAccessingStatement primitiveResultStatement?
+ ;
+
+focusedNestedDataModifyingProcedureSpecification
+ : useGraphClause nestedDataModifyingProcedureSpecification
+ ;
+
+ambientLinearDataModifyingStatement
+ : ambientLinearDataModifyingStatementBody
+ | nestedDataModifyingProcedureSpecification
+ ;
+
+ambientLinearDataModifyingStatementBody
+ : simpleLinearDataAccessingStatement primitiveResultStatement?
+ ;
+
+simpleLinearDataAccessingStatement
+ : simpleQueryStatement* simpleDataModifyingStatement+
+ ;
+
+// Subsumed by previous rule to enforce 13.1 SR 5
+//simpleDataAccessingStatement
+// : simpleQueryStatement
+// | simpleDataModifyingStatement
+// ;
+
+simpleDataModifyingStatement
+ : primitiveDataModifyingStatement
+ | callDataModifyingProcedureStatement
+ ;
+
+primitiveDataModifyingStatement
+ : insertStatement
+ | setStatement
+ | removeStatement
+ | deleteStatement
+ ;
+
+// 13.2 <insertStatement>
+
+insertStatement
+ : INSERT insertGraphPattern
+ ;
+
+// 13.3 <set statement>
+
+setStatement
+ : SET setItemList
+ ;
+
+setItemList
+ : setItem (COMMA setItem)*
+ ;
+
+setItem
+ : setPropertyItem
+ | setAllPropertiesItem
+ | setLabelItem
+ ;
+
+setPropertyItem
+ : bindingVariableReference PERIOD propertyName EQUALS_OPERATOR valueExpression
+ ;
+
+setAllPropertiesItem
+ : bindingVariableReference EQUALS_OPERATOR LEFT_BRACE propertyKeyValuePairList? RIGHT_BRACE
+ ;
+
+setLabelItem
+ : bindingVariableReference isOrColon labelName
+ ;
+
+// 13.4 <remove statement>
+
+removeStatement
+ : REMOVE removeItemList
+ ;
+
+removeItemList
+ : removeItem (COMMA removeItem)*
+ ;
+
+removeItem
+ : removePropertyItem
+ | removeLabelItem
+ ;
+
+removePropertyItem
+ : bindingVariableReference PERIOD propertyName
+ ;
+
+removeLabelItem
+ : bindingVariableReference isOrColon labelName
+ ;
+
+// 13.5 <delete statement>
+
+deleteStatement
+ : (DETACH | NODETACH)? DELETE deleteItemList
+ ;
+
+deleteItemList
+ : deleteItem (COMMA deleteItem)*
+ ;
+
+deleteItem
+ : valueExpression
+ ;
+
+// 13.6 <call data-modifying procedure statement>
+
+callDataModifyingProcedureStatement
+ : callProcedureStatement
+ ;
+
+// 14.1 <composite query statement>
+
+compositeQueryStatement
+ : compositeQueryExpression
+ ;
+
+// 14.2 <composite query expression>
+
+compositeQueryExpression
+ : compositeQueryExpression queryConjunction compositeQueryPrimary
+ | compositeQueryPrimary
+ ;
+
+queryConjunction
+ : setOperator
+ | OTHERWISE
+ ;
+
+setOperator
+ : UNION setQuantifier?
+ | EXCEPT setQuantifier?
+ | INTERSECT setQuantifier?
+ ;
+
+compositeQueryPrimary
+ : linearQueryStatement
+ ;
+
+// 14.3 <linear query statement> and <simple query statement>
+
+linearQueryStatement
+ : focusedLinearQueryStatement
+ | ambientLinearQueryStatement
+ ;
+
+focusedLinearQueryStatement
+ : focusedLinearQueryStatementPart* focusedLinearQueryAndPrimitiveResultStatementPart
+ | focusedPrimitiveResultStatement
+ | focusedNestedQuerySpecification
+ | selectStatement
+ ;
+
+focusedLinearQueryStatementPart
+ : useGraphClause simpleLinearQueryStatement
+ ;
+
+focusedLinearQueryAndPrimitiveResultStatementPart
+ : useGraphClause simpleLinearQueryStatement primitiveResultStatement
+ ;
+
+focusedPrimitiveResultStatement
+ : useGraphClause primitiveResultStatement
+ ;
+
+focusedNestedQuerySpecification
+ : useGraphClause nestedQuerySpecification
+ ;
+
+ambientLinearQueryStatement
+ : simpleLinearQueryStatement? primitiveResultStatement
+ | nestedQuerySpecification
+ ;
+
+simpleLinearQueryStatement
+ : simpleQueryStatement+
+ ;
+
+simpleQueryStatement
+ : primitiveQueryStatement
+ | callQueryStatement
+ ;
+
+primitiveQueryStatement
+ : matchStatement
+ | letStatement
+ | forStatement
+ | filterStatement
+ | orderByAndPageStatement
+ ;
+
+// 14.4 <match statement>
+
+matchStatement
+ : simpleMatchStatement
+ | optionalMatchStatement
+ ;
+
+simpleMatchStatement
+ : MATCH graphPatternBindingTable
+ ;
+
+optionalMatchStatement
+ : OPTIONAL optionalOperand
+ ;
+
+optionalOperand
+ : simpleMatchStatement
+ | LEFT_BRACE matchStatementBlock RIGHT_BRACE
+ | LEFT_PAREN matchStatementBlock RIGHT_PAREN
+ ;
+
+matchStatementBlock
+ : matchStatement+
+ ;
+
+// 14.5 <call query statement>
+
+callQueryStatement
+ : callProcedureStatement
+ ;
+
+// 14.6 <filter statement>
+
+filterStatement
+ : FILTER (whereClause | searchCondition)
+ ;
+
+// 14.7 <let statement>
+
+letStatement
+ : LET letVariableDefinitionList
+ ;
+
+letVariableDefinitionList
+ : letVariableDefinition (COMMA letVariableDefinition)*
+ ;
+
+letVariableDefinition
+ : valueVariableDefinition
+ | bindingVariable EQUALS_OPERATOR valueExpression
+ ;
+
+// 14.8 <for statement>
+
+forStatement
+ : FOR forItem forOrdinalityOrOffset?
+ ;
+
+forItem
+ : forItemAlias forItemSource
+ ;
+
+forItemAlias
+ : bindingVariable IN
+ ;
+
+forItemSource
+ : valueExpression
+ ;
+
+forOrdinalityOrOffset
+ : WITH (ORDINALITY | OFFSET) bindingVariable
+ ;
+
+// 14.9 <order by and page statement>
+
+orderByAndPageStatement
+ : orderByClause offsetClause? limitClause?
+ | offsetClause limitClause?
+ | limitClause
+ ;
+
+// 14.10 <primitive result statement>
+
+primitiveResultStatement
+ : returnStatement orderByAndPageStatement?
+ | FINISH
+ ;
+
+// 14.11 <return statement>
+
+returnStatement
+ : RETURN returnStatementBody
+ ;
+
+returnStatementBody
+ : setQuantifier? (ASTERISK | returnItemList) groupByClause?
+ | NO BINDINGS
+ ;
+
+returnItemList
+ : returnItem (COMMA returnItem)*
+ ;
+
+returnItem
+ : aggregatingValueExpression returnItemAlias?
+ ;
+
+returnItemAlias
+ : AS identifier
+ ;
+
+// 14.12 <select statement>
+
+selectStatement
+ : SELECT setQuantifier? (ASTERISK | selectItemList) (selectStatementBody whereClause? groupByClause? havingClause? orderByClause? offsetClause? limitClause?)?
+ ;
+
+selectItemList
+ : selectItem (COMMA selectItem)*
+ ;
+
+selectItem
+ : aggregatingValueExpression selectItemAlias?
+ ;
+
+selectItemAlias
+ : AS identifier
+ ;
+
+havingClause
+ : HAVING searchCondition
+ ;
+
+selectStatementBody
+ : FROM (selectGraphMatchList | selectQuerySpecification)
+ ;
+
+selectGraphMatchList
+ : selectGraphMatch (COMMA selectGraphMatch)*
+ ;
+
+selectGraphMatch
+ : graphExpression matchStatement
+ ;
+
+selectQuerySpecification
+ : nestedQuerySpecification
+ | graphExpression nestedQuerySpecification
+ ;
+
+// 15.1 <call procedure statement> and <procedure call>
+
+callProcedureStatement
+ : OPTIONAL? CALL procedureCall
+ ;
+
+procedureCall
+ : inlineProcedureCall
+ | namedProcedureCall
+ ;
+
+// 15.2 <inline procedure call>
+
+inlineProcedureCall
+ : variableScopeClause? nestedProcedureSpecification
+ ;
+
+variableScopeClause
+ : LEFT_PAREN bindingVariableReferenceList? RIGHT_PAREN
+ ;
+
+bindingVariableReferenceList
+ : bindingVariableReference (COMMA bindingVariableReference)*
+ ;
+
+// 15.3 <named procedure call>
+
+namedProcedureCall
+ : procedureReference LEFT_PAREN procedureArgumentList? RIGHT_PAREN yieldClause?
+ ;
+
+procedureArgumentList
+ : procedureArgument (COMMA procedureArgument)*
+ ;
+
+procedureArgument
+ : valueExpression
+ ;
+
+// 16.1 <at schema clasue>
+
+atSchemaClause
+ : AT schemaReference
+ ;
+
+// 16.2 <use graph clause>
+
+useGraphClause
+ : USE graphExpression
+ ;
+
+// 16.3 <graph pattern binding table>
+
+graphPatternBindingTable
+ : graphPattern graphPatternYieldClause?
+ ;
+
+graphPatternYieldClause
+ : YIELD graphPatternYieldItemList
+ ;
+
+graphPatternYieldItemList
+ : graphPatternYieldItem (COMMA graphPatternYieldItem)*
+ | NO BINDINGS
+ ;
+
+// <elemement variable reference> and <path variable reference> are identical productions, both consisting
+// of a single non-terminal <binding variable reference>. Thus <graph pattern yield item> is ambiguous
+// from a parsing standpoint. So here we simply use bindingVariableReference. Post parsing code must
+// apply the semantics assocaited with each type of <binding variable reference>.
+graphPatternYieldItem
+ : bindingVariableReference
+// : elementVariableReference
+// | pathVariableReference
+ ;
+
+// 16.4 <graph pattern>
+
+graphPattern
+ : matchMode? pathPatternList keepClause? graphPatternWhereClause?
+ ;
+
+matchMode
+ : repeatableElementsMatchMode
+ | differentEdgesMatchMode
+ ;
+
+repeatableElementsMatchMode
+ : REPEATABLE elementBindingsOrElements
+ ;
+
+differentEdgesMatchMode
+ : DIFFERENT edgeBindingsOrEdges
+ ;
+
+elementBindingsOrElements
+ : ELEMENT BINDINGS?
+ | ELEMENTS
+ ;
+
+edgeBindingsOrEdges
+ : edgeSynonym BINDINGS?
+ | edgesSynonym
+ ;
+
+pathPatternList
+ : pathPattern (COMMA pathPattern)*
+ ;
+
+pathPattern
+ : pathVariableDeclaration? pathPatternPrefix? pathPatternExpression
+ ;
+
+pathVariableDeclaration
+ : pathVariable EQUALS_OPERATOR
+ ;
+
+keepClause
+ : KEEP pathPatternPrefix
+ ;
+
+graphPatternWhereClause
+ : WHERE searchCondition
+ ;
+
+// 16.5 <insert graph pattern>
+
+insertGraphPattern
+ : insertPathPatternList
+ ;
+
+insertPathPatternList
+ : insertPathPattern (COMMA insertPathPattern)*
+ ;
+
+insertPathPattern
+ : insertNodePattern (insertEdgePattern insertNodePattern)*
+ ;
+
+insertNodePattern
+ : LEFT_PAREN insertElementPatternFiller? RIGHT_PAREN
+ ;
+
+insertEdgePattern
+ : insertEdgePointingLeft
+ | insertEdgePointingRight
+ | insertEdgeUndirected
+ ;
+
+insertEdgePointingLeft
+ : LEFT_ARROW_BRACKET insertElementPatternFiller? RIGHT_BRACKET_MINUS
+ ;
+
+insertEdgePointingRight
+ : MINUS_LEFT_BRACKET insertElementPatternFiller? BRACKET_RIGHT_ARROW
+ ;
+
+insertEdgeUndirected
+ : TILDE_LEFT_BRACKET insertElementPatternFiller? RIGHT_BRACKET_TILDE
+ ;
+
+insertElementPatternFiller
+ : elementVariableDeclaration labelAndPropertySetSpecification?
+ | elementVariableDeclaration? labelAndPropertySetSpecification
+ ;
+
+labelAndPropertySetSpecification
+ : isOrColon labelSetSpecification elementPropertySpecification?
+ | (isOrColon labelSetSpecification)? elementPropertySpecification
+ ;
+
+// 16.6 <path pattern prefix>
+
+pathPatternPrefix
+ : pathModePrefix
+ | pathSearchPrefix
+ ;
+
+pathModePrefix
+ : pathMode pathOrPaths?
+ ;
+
+pathMode
+ : WALK
+ | TRAIL
+ | SIMPLE
+ | ACYCLIC
+ ;
+
+pathSearchPrefix
+ : allPathSearch
+ | anyPathSearch
+ | shortestPathSearch
+ ;
+
+allPathSearch
+ : ALL pathMode? pathOrPaths?
+ ;
+
+pathOrPaths
+ : PATH
+ | PATHS
+ ;
+
+anyPathSearch
+ : ANY numberOfPaths? pathMode? pathOrPaths?
+ ;
+
+numberOfPaths
+ : nonNegativeIntegerSpecification
+ ;
+
+shortestPathSearch
+ : allShortestPathSearch
+ | anyShortestPathSearch
+ | countedShortestPathSearch
+ | countedShortestGroupSearch
+ ;
+
+allShortestPathSearch
+ : ALL SHORTEST pathMode? pathOrPaths?
+ ;
+
+anyShortestPathSearch
+ : ANY SHORTEST pathMode? pathOrPaths?
+ ;
+
+countedShortestPathSearch
+ : SHORTEST numberOfPaths pathMode? pathOrPaths?
+ ;
+
+countedShortestGroupSearch
+ : SHORTEST numberOfGroups? pathMode? pathOrPaths? (GROUP | GROUPS)
+ ;
+
+numberOfGroups
+ : nonNegativeIntegerSpecification
+ ;
+
+// 16.7 <path pattern expression>
+
+pathPatternExpression
+ : pathTerm #ppePathTerm
+ | pathTerm (MULTISET_ALTERNATION_OPERATOR pathTerm)+ #ppeMultisetAlternation
+ | pathTerm (VERTICAL_BAR pathTerm)+ #ppePatternUnion
+ ;
+
+pathTerm
+ : pathFactor+
+ ;
+
+pathFactor
+ : pathPrimary #pfPathPrimary
+ | pathPrimary graphPatternQuantifier #pfQuantifiedPathPrimary
+ | pathPrimary QUESTION_MARK #pfQuestionedPathPrimary
+ ;
+
+pathPrimary
+ : elementPattern #ppElementPattern
+ | parenthesizedPathPatternExpression #ppParenthesizedPathPatternExpression
+ | simplifiedPathPatternExpression #ppSimplifiedPathPatternExpression
+ ;
+
+elementPattern
+ : nodePattern
+ | edgePattern
+ ;
+
+nodePattern
+ : LEFT_PAREN elementPatternFiller RIGHT_PAREN
+ ;
+
+elementPatternFiller
+ : elementVariableDeclaration? isLabelExpression? elementPatternPredicate?
+ ;
+
+elementVariableDeclaration
+ : TEMP? elementVariable
+ ;
+
+isLabelExpression
+ : isOrColon labelExpression
+ ;
+
+isOrColon
+ : IS
+ | COLON
+ ;
+
+elementPatternPredicate
+ : elementPatternWhereClause
+ | elementPropertySpecification
+ ;
+
+elementPatternWhereClause
+ : WHERE searchCondition
+ ;
+
+elementPropertySpecification
+ : LEFT_BRACE propertyKeyValuePairList RIGHT_BRACE
+ ;
+
+propertyKeyValuePairList
+ : propertyKeyValuePair (COMMA propertyKeyValuePair)*
+ ;
+
+propertyKeyValuePair
+ : propertyName COLON valueExpression
+ ;
+
+edgePattern
+ : fullEdgePattern
+ | abbreviatedEdgePattern
+ ;
+
+fullEdgePattern
+ : fullEdgePointingLeft
+ | fullEdgeUndirected
+ | fullEdgePointingRight
+ | fullEdgeLeftOrUndirected
+ | fullEdgeUndirectedOrRight
+ | fullEdgeLeftOrRight
+ | fullEdgeAnyDirection
+ ;
+
+fullEdgePointingLeft
+ : LEFT_ARROW_BRACKET elementPatternFiller RIGHT_BRACKET_MINUS
+ ;
+
+fullEdgeUndirected
+ : TILDE_LEFT_BRACKET elementPatternFiller RIGHT_BRACKET_TILDE
+ ;
+
+fullEdgePointingRight
+ : MINUS_LEFT_BRACKET elementPatternFiller BRACKET_RIGHT_ARROW
+ ;
+
+fullEdgeLeftOrUndirected
+ : LEFT_ARROW_TILDE_BRACKET elementPatternFiller RIGHT_BRACKET_TILDE
+ ;
+
+fullEdgeUndirectedOrRight
+ : TILDE_LEFT_BRACKET elementPatternFiller BRACKET_TILDE_RIGHT_ARROW
+ ;
+
+fullEdgeLeftOrRight
+ : LEFT_ARROW_BRACKET elementPatternFiller BRACKET_RIGHT_ARROW
+ ;
+
+fullEdgeAnyDirection
+ : MINUS_LEFT_BRACKET elementPatternFiller RIGHT_BRACKET_MINUS
+ ;
+
+abbreviatedEdgePattern
+ : LEFT_ARROW
+ | TILDE
+ | RIGHT_ARROW
+ | LEFT_ARROW_TILDE
+ | TILDE_RIGHT_ARROW
+ | LEFT_MINUS_RIGHT
+ | MINUS_SIGN
+ ;
+
+parenthesizedPathPatternExpression
+ : LEFT_PAREN subpathVariableDeclaration? pathModePrefix? pathPatternExpression parenthesizedPathPatternWhereClause? RIGHT_PAREN
+ ;
+
+subpathVariableDeclaration
+ : subpathVariable EQUALS_OPERATOR
+ ;
+
+parenthesizedPathPatternWhereClause
+ : WHERE searchCondition
+ ;
+
+// 16.8 <label expression>
+
+labelExpression
+ : EXCLAMATION_MARK labelExpression #labelExpressionNegation
+ | labelExpression AMPERSAND labelExpression #labelExpressionConjunction
+ | labelExpression VERTICAL_BAR labelExpression #labelExpressionDisjunction
+ | labelName #labelExpressionName
+ | PERCENT #labelExpressionWildcard
+ | LEFT_PAREN labelExpression RIGHT_PAREN #labelExpressionParenthesized
+ ;
+
+// 16.9 <path variable reference>
+
+pathVariableReference
+ : bindingVariableReference
+ ;
+
+// 16.10 <element variable reference>
+
+elementVariableReference
+ : bindingVariableReference
+ ;
+
+// 16.11 <graph pattern quantifier>
+
+graphPatternQuantifier
+ : ASTERISK
+ | PLUS_SIGN
+ | fixedQuantifier
+ | generalQuantifier
+ ;
+
+fixedQuantifier
+ : LEFT_BRACE unsignedInteger RIGHT_BRACE
+ ;
+
+generalQuantifier
+ : LEFT_BRACE lowerBound? COMMA upperBound? RIGHT_BRACE
+ ;
+
+lowerBound
+ : unsignedInteger
+ ;
+
+upperBound
+ : unsignedInteger
+ ;
+
+// 16.12 <simplified path pattern expression>
+
+simplifiedPathPatternExpression
+ : simplifiedDefaultingLeft
+ | simplifiedDefaultingUndirected
+ | simplifiedDefaultingRight
+ | simplifiedDefaultingLeftOrUndirected
+ | simplifiedDefaultingUndirectedOrRight
+ | simplifiedDefaultingLeftOrRight
+ | simplifiedDefaultingAnyDirection
+ ;
+
+simplifiedDefaultingLeft
+ : LEFT_MINUS_SLASH simplifiedContents SLASH_MINUS
+ ;
+
+simplifiedDefaultingUndirected
+ : TILDE_SLASH simplifiedContents SLASH_TILDE
+ ;
+
+simplifiedDefaultingRight
+ : MINUS_SLASH simplifiedContents SLASH_MINUS_RIGHT
+ ;
+
+simplifiedDefaultingLeftOrUndirected
+ : LEFT_TILDE_SLASH simplifiedContents SLASH_TILDE
+ ;
+
+simplifiedDefaultingUndirectedOrRight
+ : TILDE_SLASH simplifiedContents SLASH_TILDE_RIGHT
+ ;
+
+simplifiedDefaultingLeftOrRight
+ : LEFT_MINUS_SLASH simplifiedContents SLASH_MINUS_RIGHT
+ ;
+
+simplifiedDefaultingAnyDirection
+ : MINUS_SLASH simplifiedContents SLASH_MINUS
+ ;
+
+simplifiedContents
+ : simplifiedTerm
+ | simplifiedPathUnion
+ | simplifiedMultisetAlternation
+ ;
+
+simplifiedPathUnion
+ : simplifiedTerm VERTICAL_BAR simplifiedTerm (VERTICAL_BAR simplifiedTerm)*
+ ;
+
+simplifiedMultisetAlternation
+ : simplifiedTerm MULTISET_ALTERNATION_OPERATOR simplifiedTerm (MULTISET_ALTERNATION_OPERATOR simplifiedTerm)*
+ ;
+
+simplifiedTerm
+ : simplifiedFactorLow #simplifiedFactorLowLabel
+ | simplifiedTerm simplifiedFactorLow #simplifiedConcatenationLabel
+ ;
+
+simplifiedFactorLow
+ : simplifiedFactorHigh #simplifiedFactorHighLabel
+ | simplifiedFactorLow AMPERSAND simplifiedFactorHigh #simplifiedConjunctionLabel
+ ;
+
+simplifiedFactorHigh
+ : simplifiedTertiary
+ | simplifiedQuantified
+ | simplifiedQuestioned
+ ;
+
+simplifiedQuantified
+ : simplifiedTertiary graphPatternQuantifier
+ ;
+
+simplifiedQuestioned
+ : simplifiedTertiary QUESTION_MARK
+ ;
+
+simplifiedTertiary
+ : simplifiedDirectionOverride
+ | simplifiedSecondary
+ ;
+
+simplifiedDirectionOverride
+ : simplifiedOverrideLeft
+ | simplifiedOverrideUndirected
+ | simplifiedOverrideRight
+ | simplifiedOverrideLeftOrUndirected
+ | simplifiedOverrideUndirectedOrRight
+ | simplifiedOverrideLeftOrRight
+ | simplifiedOverrideAnyDirection
+ ;
+
+simplifiedOverrideLeft
+ : LEFT_ANGLE_BRACKET simplifiedSecondary
+ ;
+
+simplifiedOverrideUndirected
+ : TILDE simplifiedSecondary
+ ;
+
+simplifiedOverrideRight
+ : simplifiedSecondary RIGHT_ANGLE_BRACKET
+ ;
+
+simplifiedOverrideLeftOrUndirected
+ : LEFT_ARROW_TILDE simplifiedSecondary
+ ;
+
+simplifiedOverrideUndirectedOrRight
+ : TILDE simplifiedSecondary RIGHT_ANGLE_BRACKET
+ ;
+
+simplifiedOverrideLeftOrRight
+ : LEFT_ANGLE_BRACKET simplifiedSecondary RIGHT_ANGLE_BRACKET
+ ;
+
+simplifiedOverrideAnyDirection
+ : MINUS_SIGN simplifiedSecondary
+ ;
+
+simplifiedSecondary
+ : simplifiedPrimary
+ | simplifiedNegation
+ ;
+
+simplifiedNegation
+ : EXCLAMATION_MARK simplifiedPrimary
+ ;
+
+simplifiedPrimary
+ : labelName
+ | LEFT_PAREN simplifiedContents RIGHT_PAREN
+ ;
+
+// 16.13 <where clause>
+
+whereClause
+ : WHERE searchCondition
+ ;
+
+// 16.14 <yield clause>
+
+yieldClause
+ : YIELD yieldItemList
+ ;
+
+yieldItemList
+ : yieldItem (COMMA yieldItem)*
+ ;
+
+yieldItem
+ : (yieldItemName yieldItemAlias?)
+ ;
+
+yieldItemName
+ : fieldName
+ ;
+
+yieldItemAlias
+ : AS bindingVariable
+ ;
+
+// 16.15 <group by clasue>
+
+groupByClause
+ : GROUP BY groupingElementList
+ ;
+
+groupingElementList
+ : groupingElement (COMMA groupingElement)*
+ | emptyGroupingSet
+ ;
+
+groupingElement
+ : bindingVariableReference
+ ;
+
+emptyGroupingSet
+ : LEFT_PAREN RIGHT_PAREN
+ ;
+
+// 16.16 <order by clasue>
+
+orderByClause
+ : ORDER BY sortSpecificationList
+ ;
+
+// 16.17 <sort specification list>
+
+sortSpecificationList
+ : sortSpecification (COMMA sortSpecification)*
+ ;
+
+sortSpecification
+ : sortKey orderingSpecification? nullOrdering?
+ ;
+
+sortKey
+ : aggregatingValueExpression
+ ;
+
+orderingSpecification
+ : ASC
+ | ASCENDING
+ | DESC
+ | DESCENDING
+ ;
+
+nullOrdering
+ : NULLS FIRST
+ | NULLS LAST
+ ;
+
+// 16.18 <limit clause>
+
+limitClause
+ : LIMIT nonNegativeIntegerSpecification
+ ;
+
+// 16.19 <offset clause>
+
+offsetClause
+ : offsetSynonym nonNegativeIntegerSpecification
+ ;
+
+offsetSynonym
+ : OFFSET
+ | SKIP_RESERVED_WORD
+ ;
+
+// 17.1 <schema reference> and <catalog schema parent name>
+
+schemaReference
+ : absoluteCatalogSchemaReference
+ | relativeCatalogSchemaReference
+ | referenceParameterSpecification
+ ;
+
+absoluteCatalogSchemaReference
+ : SOLIDUS
+ | absoluteDirectoryPath schemaName
+ ;
+
+catalogSchemaParentAndName
+ : absoluteDirectoryPath schemaName
+ ;
+
+relativeCatalogSchemaReference
+ : predefinedSchemaReference
+ | relativeDirectoryPath schemaName
+ ;
+
+predefinedSchemaReference
+ : HOME_SCHEMA
+ | CURRENT_SCHEMA
+ | PERIOD
+ ;
+
+absoluteDirectoryPath
+ : SOLIDUS simpleDirectoryPath?
+ ;
+
+relativeDirectoryPath
+ : DOUBLE_PERIOD (SOLIDUS DOUBLE_PERIOD)* SOLIDUS simpleDirectoryPath?
+ ;
+
+simpleDirectoryPath
+ : (directoryName SOLIDUS)+
+ ;
+
+// 17.2 <graph reference> and <catalog graph parent and name>
+
+graphReference
+ : catalogObjectParentReference graphName
+ | delimitedGraphName
+ | homeGraph
+ | referenceParameterSpecification
+ ;
+
+catalogGraphParentAndName
+ : catalogObjectParentReference? graphName
+ ;
+
+homeGraph
+ : HOME_PROPERTY_GRAPH
+ | HOME_GRAPH
+ ;
+
+// 17.3 <graph type reference> and <catalog graph type parent and name>
+
+graphTypeReference
+ : catalogGraphTypeParentAndName
+ | referenceParameterSpecification
+ ;
+
+catalogGraphTypeParentAndName
+ : catalogObjectParentReference? graphTypeName
+ ;
+
+// 17.4 <binding table reference> and <catalog binding table parent name>
+
+bindingTableReference
+ : catalogObjectParentReference bindingTableName
+ | delimitedBindingTableName
+ | referenceParameterSpecification
+ ;
+
+// 17.5 <procedure reference> and <catalog procedure parent and name>
+
+procedureReference
+ : catalogProcedureParentAndName
+ | referenceParameterSpecification
+ ;
+
+catalogProcedureParentAndName
+ : catalogObjectParentReference? procedureName
+ ;
+
+// 17.6 <catalog object parent reference>
+
+catalogObjectParentReference
+ : schemaReference SOLIDUS? (objectName PERIOD)*
+ | (objectName PERIOD)+
+ ;
+
+// 17.7 <reference parameter specification>
+
+referenceParameterSpecification
+ : SUBSTITUTED_PARAMETER_REFERENCE
+ ;
+
+// 18.1 <nested graph type specification>
+
+nestedGraphTypeSpecification
+ : LEFT_BRACE graphTypeSpecificationBody RIGHT_BRACE
+ ;
+
+graphTypeSpecificationBody
+ : elementTypeList
+ ;
+
+elementTypeList
+ : elementTypeSpecification (COMMA elementTypeSpecification)*
+ ;
+
+elementTypeSpecification
+ : nodeTypeSpecification
+ | edgeTypeSpecification
+ ;
+
+// 18.2 <node type specification>
+
+nodeTypeSpecification
+ : nodeTypePattern
+ | nodeTypePhrase
+ ;
+
+nodeTypePattern
+ : (nodeSynonym TYPE? nodeTypeName)? LEFT_PAREN localNodeTypeAlias? nodeTypeFiller? RIGHT_PAREN
+ ;
+
+nodeTypePhrase
+ : nodeSynonym TYPE? nodeTypePhraseFiller (AS localNodeTypeAlias)?
+ ;
+
+nodeTypePhraseFiller
+ : nodeTypeName nodeTypeFiller?
+ | nodeTypeFiller
+ ;
+
+nodeTypeFiller
+ : nodeTypeKeyLabelSet nodeTypeImpliedContent?
+ | nodeTypeImpliedContent
+ ;
+
+localNodeTypeAlias
+ : regularIdentifier
+ ;
+
+nodeTypeImpliedContent
+ : nodeTypeLabelSet
+ | nodeTypePropertyTypes
+ | nodeTypeLabelSet nodeTypePropertyTypes
+ ;
+
+nodeTypeKeyLabelSet
+ : labelSetPhrase? IMPLIES
+ ;
+
+nodeTypeLabelSet
+ : labelSetPhrase
+ ;
+
+nodeTypePropertyTypes
+ : propertyTypesSpecification
+ ;
+
+// 18.3 <edge type specification>
+
+edgeTypeSpecification
+ : edgeTypePattern
+ | edgeTypePhrase
+ ;
+
+edgeTypePattern
+ : (edgeKind? edgeSynonym TYPE? edgeTypeName)? (edgeTypePatternDirected | edgeTypePatternUndirected)
+ ;
+
+edgeTypePhrase
+ : edgeKind edgeSynonym TYPE? edgeTypePhraseFiller endpointPairPhrase
+ ;
+
+edgeTypePhraseFiller
+ : edgeTypeName edgeTypeFiller?
+ | edgeTypeFiller
+ ;
+
+edgeTypeFiller
+ : edgeTypeKeyLabelSet edgeTypeImpliedContent?
+ | edgeTypeImpliedContent
+ ;
+
+edgeTypeImpliedContent
+ : edgeTypeLabelSet
+ | edgeTypePropertyTypes
+ | edgeTypeLabelSet edgeTypePropertyTypes
+ ;
+
+edgeTypeKeyLabelSet
+ : labelSetPhrase? IMPLIES
+ ;
+
+edgeTypeLabelSet
+ : labelSetPhrase
+ ;
+
+edgeTypePropertyTypes
+ : propertyTypesSpecification
+ ;
+
+edgeTypePatternDirected
+ : edgeTypePatternPointingRight
+ | edgeTypePatternPointingLeft
+ ;
+
+edgeTypePatternPointingRight
+ : sourceNodeTypeReference arcTypePointingRight destinationNodeTypeReference
+ ;
+
+edgeTypePatternPointingLeft
+ : destinationNodeTypeReference arcTypePointingLeft sourceNodeTypeReference
+ ;
+
+edgeTypePatternUndirected
+ : sourceNodeTypeReference arcTypeUndirected destinationNodeTypeReference
+ ;
+
+arcTypePointingRight
+ : MINUS_LEFT_BRACKET edgeTypeFiller BRACKET_RIGHT_ARROW
+ ;
+
+arcTypePointingLeft
+ : LEFT_ARROW_BRACKET edgeTypeFiller RIGHT_BRACKET_MINUS
+ ;
+
+arcTypeUndirected
+ : TILDE_LEFT_BRACKET edgeTypeFiller RIGHT_BRACKET_TILDE
+ ;
+
+sourceNodeTypeReference
+ : LEFT_PAREN sourceNodeTypeAlias RIGHT_PAREN
+ | LEFT_PAREN nodeTypeFiller? RIGHT_PAREN
+ ;
+
+destinationNodeTypeReference
+ : LEFT_PAREN destinationNodeTypeAlias RIGHT_PAREN
+ | LEFT_PAREN nodeTypeFiller? RIGHT_PAREN
+ ;
+
+edgeKind
+ : DIRECTED
+ | UNDIRECTED
+ ;
+
+endpointPairPhrase
+ : CONNECTING endpointPair
+ ;
+
+endpointPair
+ : endpointPairDirected
+ | endpointPairUndirected
+ ;
+
+endpointPairDirected
+ : endpointPairPointingRight
+ | endpointPairPointingLeft
+ ;
+
+endpointPairPointingRight
+ : LEFT_PAREN sourceNodeTypeAlias connectorPointingRight destinationNodeTypeAlias RIGHT_PAREN
+ ;
+
+endpointPairPointingLeft
+ : LEFT_PAREN destinationNodeTypeAlias LEFT_ARROW sourceNodeTypeAlias RIGHT_PAREN
+ ;
+
+endpointPairUndirected
+ : LEFT_PAREN sourceNodeTypeAlias connectorUndirected destinationNodeTypeAlias RIGHT_PAREN
+ ;
+
+connectorPointingRight
+ : TO
+ | RIGHT_ARROW
+ ;
+
+connectorUndirected
+ : TO
+ | TILDE
+ ;
+
+sourceNodeTypeAlias
+ : regularIdentifier
+ ;
+
+destinationNodeTypeAlias
+ : regularIdentifier
+ ;
+
+// 18.4 <label set phrase> and <label set specification>
+
+labelSetPhrase
+ : LABEL labelName
+ | LABELS labelSetSpecification
+ | isOrColon labelSetSpecification
+ ;
+
+labelSetSpecification
+ : labelName (AMPERSAND labelName)*
+ ;
+
+// 18.5 <property types specification>
+
+propertyTypesSpecification
+ : LEFT_BRACE propertyTypeList? RIGHT_BRACE
+ ;
+
+propertyTypeList
+ : propertyType (COMMA propertyType)*
+ ;
+
+// 18.6 <property type>
+
+propertyType
+ : propertyName typed? propertyValueType
+ ;
+
+// 18.7 <property value type>
+
+propertyValueType
+ : valueType
+ ;
+
+// 18.8 <binding table type>
+
+bindingTableType
+ : BINDING? TABLE fieldTypesSpecification
+ ;
+
+// 18.9 <value type>
+
+valueType
+ : predefinedType #predefinedTypeLabel
+ // <constructed value type>
+ | pathValueType #pathValueTypeLabel
+ | listValueTypeName LEFT_ANGLE_BRACKET valueType RIGHT_ANGLE_BRACKET (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt1
+ | valueType listValueTypeName (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt2
+ | listValueTypeName (LEFT_BRACKET maxLength RIGHT_BRACKET)? notNull? #listValueTypeAlt3
+ | recordType #recordTypeLabel
+ // <dynamic union type>
+ | ANY VALUE? notNull? #openDynamicUnionTypeLabel
+ | ANY? PROPERTY VALUE notNull? #dynamicPropertyValueTypeLabel
+ // <closed dynamic union type>
+ | ANY VALUE? LEFT_ANGLE_BRACKET valueType (VERTICAL_BAR valueType)* RIGHT_ANGLE_BRACKET #closedDynamicUnionTypeAtl1
+ | valueType VERTICAL_BAR valueType #closedDynamicUnionTypeAtl2
+ ;
+
+typed
+ : DOUBLE_COLON
+ | TYPED
+ ;
+
+predefinedType
+ : booleanType
+ | characterStringType
+ | byteStringType
+ | numericType
+ | temporalType
+ | referenceValueType
+ | immaterialValueType
+ ;
+
+booleanType
+ : (BOOL | BOOLEAN) notNull?
+ ;
+
+characterStringType
+ : STRING (LEFT_PAREN (minLength COMMA)? maxLength RIGHT_PAREN)? notNull?
+ | CHAR (LEFT_PAREN fixedLength RIGHT_PAREN)? notNull?
+ | VARCHAR (LEFT_PAREN maxLength RIGHT_PAREN)? notNull?
+ ;
+
+byteStringType
+ : BYTES (LEFT_PAREN (minLength COMMA)? maxLength RIGHT_PAREN)? notNull?
+ | BINARY (LEFT_PAREN fixedLength RIGHT_PAREN)? notNull?
+ | VARBINARY (LEFT_PAREN maxLength RIGHT_PAREN)? notNull?
+ ;
+
+minLength
+ : unsignedInteger
+ ;
+
+maxLength
+ : unsignedInteger
+ ;
+
+fixedLength
+ : unsignedInteger
+ ;
+
+numericType
+ : exactNumericType
+ | approximateNumericType
+ ;
+
+exactNumericType
+ : binaryExactNumericType
+ | decimalExactNumericType
+ ;
+
+binaryExactNumericType
+ : signedBinaryExactNumericType
+ | unsignedBinaryExactNumericType
+ ;
+
+signedBinaryExactNumericType
+ : INT8 notNull?
+ | INT16 notNull?
+ | INT32 notNull?
+ | INT64 notNull?
+ | INT128 notNull?
+ | INT256 notNull?
+ | SMALLINT notNull?
+ | INT (LEFT_PAREN precision RIGHT_PAREN)? notNull?
+ | BIGINT notNull?
+ | SIGNED? verboseBinaryExactNumericType
+ ;
+
+unsignedBinaryExactNumericType
+ : UINT8 notNull?
+ | UINT16 notNull?
+ | UINT32 notNull?
+ | UINT64 notNull?
+ | UINT128 notNull?
+ | UINT256 notNull?
+ | USMALLINT notNull?
+ | UINT (LEFT_PAREN precision RIGHT_PAREN)? notNull?
+ | UBIGINT notNull?
+ | UNSIGNED verboseBinaryExactNumericType
+ ;
+
+verboseBinaryExactNumericType
+ : INTEGER8 notNull?
+ | INTEGER16 notNull?
+ | INTEGER32 notNull?
+ | INTEGER64 notNull?
+ | INTEGER128 notNull?
+ | INTEGER256 notNull?
+ | SMALL INTEGER notNull?
+ | INTEGER (LEFT_PAREN precision RIGHT_PAREN)? notNull?
+ | BIG INTEGER notNull?
+ ;
+
+decimalExactNumericType
+ : (DECIMAL | DEC) (LEFT_PAREN precision (COMMA scale)? RIGHT_PAREN notNull?)?
+ ;
+
+precision
+ : unsignedDecimalInteger
+ ;
+
+scale
+ : unsignedDecimalInteger
+ ;
+
+approximateNumericType
+ : FLOAT16 notNull?
+ | FLOAT32 notNull?
+ | FLOAT64 notNull?
+ | FLOAT128 notNull?
+ | FLOAT256 notNull?
+ | FLOAT (LEFT_PAREN precision (COMMA scale)? RIGHT_PAREN)? notNull?
+ | REAL notNull?
+ | DOUBLE PRECISION? notNull?
+ ;
+
+temporalType
+ : temporalInstantType
+ | temporalDurationType
+ ;
+
+temporalInstantType
+ : datetimeType
+ | localdatetimeType
+ | dateType
+ | timeType
+ | localtimeType
+ ;
+
+datetimeType
+ : ZONED DATETIME notNull?
+ | TIMESTAMP WITH TIME ZONE notNull?
+ ;
+
+localdatetimeType
+ : LOCAL DATETIME notNull?
+ | TIMESTAMP (WITHOUT TIME ZONE)? notNull?
+ ;
+
+dateType
+ : DATE notNull?
+ ;
+
+timeType
+ : ZONED TIME notNull?
+ | TIME WITH TIME ZONE notNull?
+ ;
+
+localtimeType
+ : LOCAL TIME notNull?
+ | TIME WITHOUT TIME ZONE notNull?
+ ;
+
+temporalDurationType
+ : DURATION LEFT_PAREN temporalDurationQualifier RIGHT_PAREN notNull?
+ ;
+
+temporalDurationQualifier
+ : YEAR TO MONTH
+ | DAY TO SECOND
+ ;
+
+referenceValueType
+ : graphReferenceValueType
+ | bindingTableReferenceValueType
+ | nodeReferenceValueType
+ | edgeReferenceValueType
+ ;
+
+immaterialValueType
+ : nullType
+ | emptyType
+ ;
+
+nullType
+ : NULL
+ ;
+
+emptyType
+ : NULL notNull
+ | NOTHING
+ ;
+
+graphReferenceValueType
+ : openGraphReferenceValueType
+ | closedGraphReferenceValueType
+ ;
+
+closedGraphReferenceValueType
+ : PROPERTY? GRAPH nestedGraphTypeSpecification notNull?
+ ;
+
+openGraphReferenceValueType
+ : ANY PROPERTY? GRAPH notNull?
+ ;
+
+bindingTableReferenceValueType
+ : bindingTableType notNull?
+ ;
+
+nodeReferenceValueType
+ : openNodeReferenceValueType
+ | closedNodeReferenceValueType
+ ;
+
+closedNodeReferenceValueType
+ : nodeTypeSpecification notNull?
+ ;
+
+openNodeReferenceValueType
+ : ANY? nodeSynonym notNull?
+ ;
+
+edgeReferenceValueType
+ : openEdgeReferenceValueType
+ | closedEdgeReferenceValueType
+ ;
+
+closedEdgeReferenceValueType
+ : edgeTypeSpecification notNull?
+ ;
+
+openEdgeReferenceValueType
+ : ANY? edgeSynonym notNull?
+ ;
+
+pathValueType
+ : PATH notNull?
+ ;
+
+listValueTypeName
+ : GROUP? listValueTypeNameSynonym
+ ;
+
+listValueTypeNameSynonym
+ : LIST
+ | ARRAY
+ ;
+
+recordType
+ : ANY? RECORD notNull?
+ | RECORD? fieldTypesSpecification notNull?
+ ;
+
+fieldTypesSpecification
+ : LEFT_BRACE fieldTypeList? RIGHT_BRACE
+ ;
+
+fieldTypeList
+ : fieldType (COMMA fieldType)*
+ ;
+
+notNull
+ : NOT NULL
+ ;
+
+// 18.10 <field type>
+
+fieldType
+ : fieldName typed? valueType
+ ;
+
+// 19.1 <search condition>
+
+searchCondition
+ : booleanValueExpression
+ ;
+
+// 19.2 <predicate>
+
+predicate
+ : existsPredicate
+ | nullPredicate
+ | valueTypePredicate
+ | directedPredicate
+ | labeledPredicate
+ | sourceDestinationPredicate
+ | all_differentPredicate
+ | samePredicate
+ | property_existsPredicate
+ ;
+
+// 19.3 <comparison predicate>
+
+// The <comparison predicate> productions moved to valueExpression
+// to avoid left mutually recursive productions.
+
+comparisonPredicatePart2
+ : compOp valueExpression
+ ;
+
+compOp
+ : EQUALS_OPERATOR
+ | NOT_EQUALS_OPERATOR
+ | LEFT_ANGLE_BRACKET
+ | RIGHT_ANGLE_BRACKET
+ | LESS_THAN_OR_EQUALS_OPERATOR
+ | GREATER_THAN_OR_EQUALS_OPERATOR
+ ;
+
+// 19.4 <exists predicate>
+
+existsPredicate
+ : EXISTS (LEFT_BRACE graphPattern RIGHT_BRACE | LEFT_PAREN graphPattern RIGHT_PAREN | LEFT_BRACE matchStatementBlock RIGHT_BRACE | LEFT_PAREN matchStatementBlock RIGHT_PAREN | nestedQuerySpecification)
+ ;
+
+// 19.5 <null predicate>
+
+nullPredicate
+ : valueExpressionPrimary nullPredicatePart2
+ ;
+
+nullPredicatePart2
+ : IS NOT? NULL
+ ;
+
+// 19.6 <value type predicate>
+
+valueTypePredicate
+ : valueExpressionPrimary valueTypePredicatePart2
+ ;
+
+valueTypePredicatePart2
+ : IS NOT? typed valueType
+ ;
+
+// 19.7 <normalized predicate>
+
+normalizedPredicatePart2
+ : IS NOT? normalForm? NORMALIZED
+ ;
+
+// 19.8 <directed predicate>
+
+directedPredicate
+ : elementVariableReference directedPredicatePart2
+ ;
+
+directedPredicatePart2
+ : IS NOT? DIRECTED
+ ;
+
+// 19.9 <labled predicate>
+
+labeledPredicate
+ : elementVariableReference labeledPredicatePart2
+ ;
+
+labeledPredicatePart2
+ : isLabeledOrColon labelExpression
+ ;
+
+isLabeledOrColon
+ : IS NOT? LABELED
+ | COLON
+ ;
+
+// 19.10 <source/destination predicate>
+
+sourceDestinationPredicate
+ : nodeReference sourcePredicatePart2
+ | nodeReference destinationPredicatePart2
+ ;
+
+nodeReference
+ : elementVariableReference
+ ;
+
+sourcePredicatePart2
+ : IS NOT? SOURCE OF edgeReference
+ ;
+
+destinationPredicatePart2
+ : IS NOT? DESTINATION OF edgeReference
+ ;
+
+edgeReference
+ : elementVariableReference
+ ;
+
+// 19.11 <all different predicate>
+
+all_differentPredicate
+ : ALL_DIFFERENT LEFT_PAREN elementVariableReference COMMA elementVariableReference (COMMA elementVariableReference)* RIGHT_PAREN
+ ;
+
+// 19.12 <same predicate>
+
+samePredicate
+ : SAME LEFT_PAREN elementVariableReference COMMA elementVariableReference (COMMA elementVariableReference)* RIGHT_PAREN
+ ;
+
+// 19.13 <property exists predicate>
+
+property_existsPredicate
+ : PROPERTY_EXISTS LEFT_PAREN elementVariableReference COMMA propertyName RIGHT_PAREN
+ ;
+
+// 20.1 <value expression>
+
+// This version of valueExpression sucks up rules broken out in the standard to a single production. This
+// eliminates ambiguity in multiple rules specifying valueExpressionPrimary.
+
+valueExpression
+ // Numeric, datetime and duration types all support roughly the same expressions. So here
+ // we define a rule that deals with all of them. It is up to the implementation to post
+ // process the sytnax tree and flag invalid type and function combinations.
+ : sign = (PLUS_SIGN | MINUS_SIGN) valueExpression #signedExprAlt
+ | valueExpression operator = (ASTERISK | SOLIDUS) valueExpression #multDivExprAlt
+ | valueExpression operator = (PLUS_SIGN | MINUS_SIGN) valueExpression #addSubtractExprAlt
+ // Character strings, byte strings, lists and paths all support the same concatenation
+ // operator. So here we define a rule that deals with all of them. Of course the types
+ // cannot be combined. So it is up to implementation to post process the sytax tree
+ // and flag invalid type and function combinations.
+ | valueExpression CONCATENATION_OPERATOR valueExpression #concatenationExprAlt
+ // Boolean value expression included here.
+ | NOT valueExpression #notExprAlt
+ | valueExpression IS NOT? truthValue #isNotExprAlt
+ | valueExpression AND valueExpression #conjunctiveExprAlt
+ | valueExpression operator = (OR | XOR) valueExpression #disjunctiveExprAlt
+ // The comparisonPredicate productions moved here to eliminate left mutual recursion.
+ | valueExpression comparisonPredicatePart2 #comparisonExprAlt
+ | predicate #predicateExprAlt
+ // The normalizedPredicate productions moved here to eliminate left mutual recursion.
+ | valueExpression normalizedPredicatePart2 #normalizedPredicateExprAlt
+ | PROPERTY? GRAPH graphExpression #propertyGraphExprAlt
+ | BINDING? TABLE bindingTableExpression #bindingTableExprAlt
+ | valueFunction #valueFunctionExprAlt
+ | valueExpressionPrimary #primaryExprAlt
+ ;
+
+valueFunction
+ : numericValueFunction
+ | datetimeSubtraction
+ | datetimeValueFunction
+ | durationValueFunction
+ | characterOrByteStringFunction
+ | listValueFunction
+ ;
+
+booleanValueExpression
+ : valueExpression
+ ;
+
+characterOrByteStringFunction
+ : subCharacterOrByteString
+ | trimSingleCharacterOrByteString
+ | foldCharacterString
+ | trimMultiCharacterCharacterString
+ | normalizeCharacterString
+ ;
+
+subCharacterOrByteString
+ : (LEFT | RIGHT) LEFT_PAREN valueExpression COMMA stringLength RIGHT_PAREN
+ ;
+
+trimSingleCharacterOrByteString
+ : TRIM LEFT_PAREN trimOperands RIGHT_PAREN
+ ;
+
+foldCharacterString
+ : (UPPER | LOWER) LEFT_PAREN valueExpression RIGHT_PAREN
+ ;
+
+trimMultiCharacterCharacterString
+ : (BTRIM | LTRIM | RTRIM) LEFT_PAREN valueExpression (COMMA valueExpression)? RIGHT_PAREN
+ ;
+
+normalizeCharacterString
+ : NORMALIZE LEFT_PAREN valueExpression (COMMA normalForm)? RIGHT_PAREN
+ ;
+
+nodeReferenceValueExpression
+ : valueExpressionPrimary
+ ;
+
+edgeReferenceValueExpression
+ : valueExpressionPrimary
+ ;
+
+aggregatingValueExpression
+ : valueExpression
+ ;
+
+// 20.2 <value expression primary>
+
+valueExpressionPrimary
+ : parenthesizedValueExpression
+ | aggregateFunction
+ | unsignedValueSpecification
+// List and Record literals are reduntantly/abiguously part of the literal production
+// | listValueConstructor
+// | recordConstructor
+ | pathValueConstructor
+ | valueExpressionPrimary PERIOD propertyName // <propertyReference
+ | valueQueryExpression
+ | caseExpression
+ | castSpecification
+ | element_idFunction
+ | letValueExpression
+ | bindingVariableReference
+ ;
+
+parenthesizedValueExpression
+ : LEFT_PAREN valueExpression RIGHT_PAREN
+ ;
+
+nonParenthesizedValueExpressionPrimary
+ : nonParenthesizedValueExpressionPrimarySpecialCase
+ | bindingVariableReference
+ ;
+
+nonParenthesizedValueExpressionPrimarySpecialCase
+ : aggregateFunction
+ | unsignedValueSpecification
+// List and Record literals are reduntantly/abiguously part of the literal production
+// | listValueConstructor
+// | recordConstructor
+ | pathValueConstructor
+ | valueExpressionPrimary PERIOD propertyName // <property reference>
+ | valueQueryExpression
+ | caseExpression
+ | castSpecification
+ | element_idFunction
+ | letValueExpression
+ ;
+
+// 20.3 <value specification>
+
+unsignedValueSpecification
+ : unsignedLiteral
+ | generalValueSpecification
+ ;
+
+nonNegativeIntegerSpecification
+ : unsignedInteger
+ | dynamicParameterSpecification
+ ;
+
+generalValueSpecification
+ : dynamicParameterSpecification
+ | SESSION_USER
+ ;
+
+// 20.4 <dynamic parameter specification>
+
+dynamicParameterSpecification
+ : GENERAL_PARAMETER_REFERENCE
+ ;
+
+// 20.5 <let value expression>
+
+letValueExpression
+ : LET letVariableDefinitionList IN valueExpression END
+ ;
+
+// 20.6 <value query expression>
+
+valueQueryExpression
+ : VALUE nestedQuerySpecification
+ ;
+
+// 20.7 <case expression>
+
+caseExpression
+ : caseAbbreviation
+ | caseSpecification
+ ;
+
+caseAbbreviation
+ : NULLIF LEFT_PAREN valueExpression COMMA valueExpression RIGHT_PAREN
+ | COALESCE LEFT_PAREN valueExpression (COMMA valueExpression)+ RIGHT_PAREN
+ ;
+
+caseSpecification
+ : simpleCase
+ | searchedCase
+ ;
+
+simpleCase
+ : CASE caseOperand simpleWhenClause+ elseClause? END
+ ;
+
+searchedCase
+ : CASE searchedWhenClause+ elseClause? END
+ ;
+
+simpleWhenClause
+ : WHEN whenOperandList THEN result
+ ;
+
+searchedWhenClause
+ : WHEN searchCondition THEN result
+ ;
+
+elseClause
+ : ELSE result
+ ;
+
+caseOperand
+ : nonParenthesizedValueExpressionPrimary
+ | elementVariableReference
+ ;
+
+whenOperandList
+ : whenOperand (COMMA whenOperand)*
+ ;
+
+whenOperand
+ : nonParenthesizedValueExpressionPrimary
+ | comparisonPredicatePart2
+ | nullPredicatePart2
+ | valueTypePredicatePart2
+ | normalizedPredicatePart2
+ | directedPredicatePart2
+ | labeledPredicatePart2
+ | sourcePredicatePart2
+ | destinationPredicatePart2
+ ;
+
+result
+ : resultExpression
+ | nullLiteral
+ ;
+
+resultExpression
+ : valueExpression
+ ;
+
+// 20.8 <cast specification>
+
+castSpecification
+ : CAST LEFT_PAREN castOperand AS castTarget RIGHT_PAREN
+ ;
+
+castOperand
+ : valueExpression
+ | nullLiteral
+ ;
+
+castTarget
+ : valueType
+ ;
+
+// 20.9 <aggregate function>
+
+aggregateFunction
+ : COUNT LEFT_PAREN ASTERISK RIGHT_PAREN
+ | generalSetFunction
+ | binarySetFunction
+ ;
+
+generalSetFunction
+ : generalSetFunctionType LEFT_PAREN setQuantifier? valueExpression RIGHT_PAREN
+ ;
+
+binarySetFunction
+ : binarySetFunctionType LEFT_PAREN dependentValueExpression COMMA independentValueExpression RIGHT_PAREN
+ ;
+
+generalSetFunctionType
+ : AVG
+ | COUNT
+ | MAX
+ | MIN
+ | SUM
+ | COLLECT_LIST
+ | STDDEV_SAMP
+ | STDDEV_POP
+ ;
+
+setQuantifier
+ : DISTINCT
+ | ALL
+ ;
+
+binarySetFunctionType
+ : PERCENTILE_CONT
+ | PERCENTILE_DISC
+ ;
+
+dependentValueExpression
+ : setQuantifier? numericValueExpression
+ ;
+
+independentValueExpression
+ : numericValueExpression
+ ;
+
+// 20.10 <element_id function>
+
+element_idFunction
+ : ELEMENT_ID LEFT_PAREN elementVariableReference RIGHT_PAREN
+ ;
+
+// 20.11 <property reference>
+
+// 20.12 <binding variable reference>
+
+bindingVariableReference
+ : bindingVariable
+ ;
+
+// The path value expression was combined with list and string value expressions.
+// See listStringOrPathValueExpression.
+
+pathValueExpression
+ : valueExpression
+ ;
+
+// 20.14 <path value constructor>
+
+pathValueConstructor
+ : pathValueConstructorByEnumeration
+ ;
+
+pathValueConstructorByEnumeration
+ : PATH LEFT_BRACKET pathElementList RIGHT_BRACKET
+ ;
+
+pathElementList
+ : pathElementListStart pathElementListStep*
+ ;
+
+pathElementListStart
+ : nodeReferenceValueExpression
+ ;
+
+pathElementListStep
+ : COMMA edgeReferenceValueExpression COMMA nodeReferenceValueExpression
+ ;
+
+// 20.15 <list value expression>
+
+// The list value expression was combined with path and string value expressions.
+// See listStringOrPathValueExpression.
+
+listValueExpression
+ : valueExpression
+ ;
+
+// 20.16 <list value function>
+
+// Note: ByteString functions were moved to characterByteStringOrListFunction, some alternatives
+// apply to characterString, byteString and list. Breaking them out separately resulted in
+// ambiguity.
+
+listValueFunction
+ : trimListFunction
+ | elementsFunction
+ ;
+
+trimListFunction
+ : TRIM LEFT_PAREN listValueExpression COMMA numericValueExpression RIGHT_PAREN
+ ;
+
+elementsFunction
+ : ELEMENTS LEFT_PAREN pathValueExpression RIGHT_PAREN
+ ;
+
+// 20.17 <list value constructor>
+
+listValueConstructor
+ : listValueConstructorByEnumeration
+ ;
+
+listValueConstructorByEnumeration
+ : listValueTypeName? LEFT_BRACKET listElementList? RIGHT_BRACKET
+ ;
+
+listElementList
+ : listElement (COMMA listElement)*
+ ;
+
+listElement
+ : valueExpression
+ ;
+
+// 20.18 <record constructor>
+
+recordConstructor
+ : RECORD? fieldsSpecification
+ ;
+
+fieldsSpecification
+ : LEFT_BRACE fieldList? RIGHT_BRACE
+ ;
+
+fieldList
+ : field (COMMA field)*
+ ;
+
+// 20.19 <field>
+
+field
+ : fieldName COLON valueExpression
+ ;
+
+// 20.20 <boolean value expression>
+
+// Most of <boolean value expression> is incorporated in valueExpression
+
+truthValue
+ : BOOLEAN_LITERAL
+ ;
+
+// 20.21 <numeric value expression>
+
+numericValueExpression
+ : sign = (PLUS_SIGN | MINUS_SIGN) numericValueExpression
+ | numericValueExpression operator = (ASTERISK | SOLIDUS) numericValueExpression
+ | numericValueExpression operator = (PLUS_SIGN | MINUS_SIGN) numericValueExpression
+ | valueExpressionPrimary
+ | numericValueFunction
+ ;
+
+// 20.22 <numeric value function>
+
+numericValueFunction
+ : lengthExpression
+ | cardinalityExpression
+ | absoluteValueExpression
+ | modulusExpression
+ | trigonometricFunction
+ | generalLogarithmFunction
+ | commonLogarithm
+ | naturalLogarithm
+ | exponentialFunction
+ | powerFunction
+ | squareRoot
+ | floorFunction
+ | ceilingFunction
+ ;
+
+lengthExpression
+ : charLengthExpression
+ | byteLengthExpression
+ | pathLengthExpression
+ ;
+
+cardinalityExpression
+ : CARDINALITY LEFT_PAREN cardinalityExpressionArgument RIGHT_PAREN
+ | SIZE LEFT_PAREN listValueExpression RIGHT_PAREN
+ ;
+
+cardinalityExpressionArgument
+ : valueExpression
+ ;
+
+charLengthExpression
+ : (CHAR_LENGTH | CHARACTER_LENGTH) LEFT_PAREN characterStringValueExpression RIGHT_PAREN
+ ;
+
+byteLengthExpression
+ : (BYTE_LENGTH | OCTET_LENGTH) LEFT_PAREN byteStringValueExpression RIGHT_PAREN
+ ;
+
+pathLengthExpression
+ : PATH_LENGTH LEFT_PAREN pathValueExpression RIGHT_PAREN
+ ;
+
+// absoluteValueExpression applies to both numeric types and duration types. They have the same syntax.
+absoluteValueExpression
+ : ABS LEFT_PAREN valueExpression RIGHT_PAREN
+ ;
+
+modulusExpression
+ : MOD LEFT_PAREN numericValueExpressionDividend COMMA numericValueExpressionDivisor RIGHT_PAREN
+ ;
+
+numericValueExpressionDividend
+ : numericValueExpression
+ ;
+
+numericValueExpressionDivisor
+ : numericValueExpression
+ ;
+
+trigonometricFunction
+ : trigonometricFunctionName LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+trigonometricFunctionName
+ : SIN
+ | COS
+ | TAN
+ | COT
+ | SINH
+ | COSH
+ | TANH
+ | ASIN
+ | ACOS
+ | ATAN
+ | DEGREES
+ | RADIANS
+ ;
+
+generalLogarithmFunction
+ : LOG LEFT_PAREN generalLogarithmBase COMMA generalLogarithmArgument RIGHT_PAREN
+ ;
+
+generalLogarithmBase
+ : numericValueExpression
+ ;
+
+generalLogarithmArgument
+ : numericValueExpression
+ ;
+
+commonLogarithm
+ : LOG10 LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+naturalLogarithm
+ : LN LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+exponentialFunction
+ : EXP LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+powerFunction
+ : POWER LEFT_PAREN numericValueExpressionBase COMMA numericValueExpressionExponent RIGHT_PAREN
+ ;
+
+numericValueExpressionBase
+ : numericValueExpression
+ ;
+
+numericValueExpressionExponent
+ : numericValueExpression
+ ;
+
+squareRoot
+ : SQRT LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+floorFunction
+ : FLOOR LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+ceilingFunction
+ : (CEIL | CEILING) LEFT_PAREN numericValueExpression RIGHT_PAREN
+ ;
+
+// 20.23 <string value expression>
+
+// The string value expressions were combined with list and path value expressions.
+
+characterStringValueExpression
+ : valueExpression
+ ;
+
+byteStringValueExpression
+ : valueExpression
+ ;
+
+// 20.24 <string value function>
+
+// Note: String functions were moved to characterByteStringOrListFunction, some alternatives
+// apply to characterString, byteString and list. Breaking them out separately resulted in
+// ambiguity.
+
+trimOperands
+ : (trimSpecification? trimCharacterOrByteString? FROM)? trimCharacterOrByteStringSource
+ ;
+
+trimCharacterOrByteStringSource
+ : valueExpression
+ ;
+
+trimSpecification
+ : LEADING
+ | TRAILING
+ | BOTH
+ ;
+
+trimCharacterOrByteString
+ : valueExpression
+ ;
+
+normalForm
+ : NFC
+ | NFD
+ | NFKC
+ | NFKD
+ ;
+
+stringLength
+ : numericValueExpression
+ ;
+
+// 20.25 <byte string function>
+
+// Note: ByteString functions were moved to characterByteStringOrListFunction, some alternatives
+// apply to characterString, byteString and list. Breaking them out separately resulted in
+// ambiguity.
+
+// 20.26 <datetime value expression>
+
+// The implementation should enforce that the data type is a datetime value.
+datetimeValueExpression
+ : valueExpression
+ ;
+
+// 20.27 <datetime value function>
+
+datetimeValueFunction
+ : dateFunction
+ | timeFunction
+ | datetimeFunction
+ | localtimeFunction
+ | localdatetimeFunction
+ ;
+
+dateFunction
+ : CURRENT_DATE
+ | DATE LEFT_PAREN dateFunctionParameters? RIGHT_PAREN
+ ;
+
+timeFunction
+ : CURRENT_TIME
+ | ZONED_TIME LEFT_PAREN timeFunctionParameters? RIGHT_PAREN
+ ;
+
+localtimeFunction
+ : LOCAL_TIME (LEFT_PAREN timeFunctionParameters? RIGHT_PAREN)?
+ ;
+
+datetimeFunction
+ : CURRENT_TIMESTAMP
+ | ZONED_DATETIME LEFT_PAREN datetimeFunctionParameters? RIGHT_PAREN
+ ;
+
+localdatetimeFunction
+ : LOCAL_TIMESTAMP
+ | LOCAL_DATETIME LEFT_PAREN datetimeFunctionParameters? RIGHT_PAREN
+ ;
+
+dateFunctionParameters
+ : dateString
+ | recordConstructor
+ ;
+
+timeFunctionParameters
+ : timeString
+ | recordConstructor
+ ;
+
+datetimeFunctionParameters
+ : datetimeString
+ | recordConstructor
+ ;
+
+// 20.28 <duration value expression>
+
+// The implemenation should enforce that the data type is a duration value.
+durationValueExpression
+ : valueExpression
+ ;
+
+datetimeSubtraction
+ : DURATION_BETWEEN LEFT_PAREN datetimeSubtractionParameters RIGHT_PAREN temporalDurationQualifier?
+ ;
+
+datetimeSubtractionParameters
+ : datetimeValueExpression1 COMMA datetimeValueExpression2
+ ;
+
+datetimeValueExpression1
+ : datetimeValueExpression
+ ;
+
+datetimeValueExpression2
+ : datetimeValueExpression
+ ;
+
+// 20.29 <duration value function>
+
+durationValueFunction
+ : durationFunction
+ | absoluteValueExpression
+ ;
+
+durationFunction
+ : DURATION LEFT_PAREN durationFunctionParameters RIGHT_PAREN
+ ;
+
+durationFunctionParameters
+ : durationString
+ | recordConstructor
+ ;
+
+// 21.1 Names and Variables
+
+objectName
+ : identifier
+ ;
+
+objectNameOrBindingVariable
+ : regularIdentifier
+ ;
+
+directoryName
+ : identifier
+ ;
+
+schemaName
+ : identifier
+ ;
+
+graphName
+ : regularIdentifier
+ | delimitedGraphName
+ ;
+
+delimitedGraphName
+ // DELIMITED_IDENTIFIER
+ : DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ | ACCENT_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+graphTypeName
+ : identifier
+ ;
+
+nodeTypeName
+ : identifier
+ ;
+
+edgeTypeName
+ : identifier
+ ;
+
+bindingTableName
+ : regularIdentifier
+ | delimitedBindingTableName
+ ;
+
+delimitedBindingTableName
+ // DELIMITED_IDENTIFIER
+ : DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ | ACCENT_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+procedureName
+ : identifier
+ ;
+
+labelName
+ : identifier
+ ;
+
+propertyName
+ : identifier
+ ;
+
+fieldName
+ : identifier
+ ;
+
+elementVariable
+ : bindingVariable
+ ;
+
+pathVariable
+ : bindingVariable
+ ;
+
+subpathVariable
+ : regularIdentifier
+ ;
+
+bindingVariable
+ : regularIdentifier
+ ;
+
+// 21.2 <literal>
+
+unsignedLiteral
+ : unsignedNumericLiteral
+ | generalLiteral
+ ;
+
+generalLiteral
+ : BOOLEAN_LITERAL
+ | characterStringLiteral
+ | BYTE_STRING_LITERAL
+ | temporalLiteral
+ | durationLiteral
+ | nullLiteral
+ | listLiteral
+ | recordLiteral
+ ;
+
+temporalLiteral
+ : dateLiteral
+ | timeLiteral
+ | datetimeLiteral
+// | sqlDatetimeLiteral
+ ;
+
+dateLiteral
+ : DATE dateString
+ ;
+
+timeLiteral
+ : TIME timeString
+ ;
+
+datetimeLiteral
+ : (DATETIME | TIMESTAMP) datetimeString
+ ;
+
+listLiteral
+ : listValueConstructorByEnumeration
+ ;
+
+recordLiteral
+ : recordConstructor
+ ;
+
+identifier
+ : regularIdentifier
+ // DELIMITED_IDENTIFIER
+ | DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ | ACCENT_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+regularIdentifier
+ : REGULAR_IDENTIFIER
+ | nonReservedWords
+ ;
+
+timeZoneString
+ : characterStringLiteral
+ ;
+
+characterStringLiteral
+ : SINGLE_QUOTED_CHARACTER_SEQUENCE
+ | DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+unsignedNumericLiteral
+ : exactNumericLiteral
+ | approximateNumericLiteral
+ ;
+
+exactNumericLiteral
+ : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_EXACT_NUMBER_SUFFIX
+ | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_EXACT_NUMBER_SUFFIX
+ | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITHOUT_SUFFIX
+ | UNSIGNED_DECIMAL_INTEGER_WITH_EXACT_NUMBER_SUFFIX
+ | unsignedInteger
+ ;
+
+approximateNumericLiteral
+ : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
+ | UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITHOUT_SUFFIX
+ | UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
+ | UNSIGNED_DECIMAL_INTEGER_WITH_APPROXIMATE_NUMBER_SUFFIX
+ ;
+
+unsignedInteger
+ : UNSIGNED_DECIMAL_INTEGER
+ | UNSIGNED_HEXADECIMAL_INTEGER
+ | UNSIGNED_OCTAL_INTEGER
+ | UNSIGNED_BINARY_INTEGER
+ ;
+
+unsignedDecimalInteger
+ : UNSIGNED_DECIMAL_INTEGER
+ ;
+
+nullLiteral
+ : NULL
+ ;
+
+dateString
+ : characterStringLiteral
+ ;
+
+timeString
+ : characterStringLiteral
+ ;
+
+datetimeString
+ : characterStringLiteral
+ ;
+
+durationLiteral
+ : DURATION durationString
+// | sqlIntervalLiteral
+ ;
+
+durationString
+ : characterStringLiteral
+ ;
+
+nodeSynonym
+ : NODE
+ | VERTEX
+ ;
+
+edgesSynonym
+ : EDGES
+ | RELATIONSHIPS
+ ;
+
+edgeSynonym
+ : EDGE
+ | RELATIONSHIP
+ ;
+
+// 21.1 Names and Variables
+
+IMPLIES
+ : RIGHT_DOUBLE_ARROW
+ | 'IMPLIES'
+ ;
+
+fragment PARAMETER_NAME
+ : SEPARATED_IDENTIFIER
+ ;
+
+// 21.2 <literal>
+
+nonReservedWords
+ : ACYCLIC
+ | BINDING
+ | BINDINGS
+ | CONNECTING
+ | DESTINATION
+ | DIFFERENT
+ | DIRECTED
+ | EDGE
+ | EDGES
+ | ELEMENT
+ | ELEMENTS
+ | FIRST
+ | GRAPH
+ | GROUPS
+ | KEEP
+ | LABEL
+ | LABELED
+ | LABELS
+ | LAST
+ | NFC
+ | NFD
+ | NFKC
+ | NFKD
+ | NO
+ | NODE
+ | NORMALIZED
+ | ONLY
+ | ORDINALITY
+ | PROPERTY
+ | READ
+ | RELATIONSHIP
+ | RELATIONSHIPS
+ | REPEATABLE
+ | SHORTEST
+ | SIMPLE
+ | SOURCE
+ | TABLE
+ | TEMP
+ | TO
+ | TRAIL
+ | TRANSACTION
+ | TYPE
+ | UNDIRECTED
+ | VERTEX
+ | WALK
+ | WITHOUT
+ | WRITE
+ | ZONE
+ ;
+
+BOOLEAN_LITERAL
+ : 'TRUE'
+ | 'FALSE'
+ | 'UNKNOWN'
+ ;
+
+SINGLE_QUOTED_CHARACTER_SEQUENCE
+ : NO_ESCAPE? UNBROKEN_SINGLE_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ : NO_ESCAPE? UNBROKEN_DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+ACCENT_QUOTED_CHARACTER_SEQUENCE
+ :NO_ESCAPE? UNBROKEN_ACCENT_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+NO_ESCAPE
+ : COMMERCIAL_AT
+ ;
+
+fragment UNBROKEN_SINGLE_QUOTED_CHARACTER_SEQUENCE
+ : QUOTE SINGLE_QUOTED_CHARACTER_REPRESENTATION* QUOTE
+ ;
+
+fragment UNBROKEN_DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ : DOUBLE_QUOTE DOUBLE_QUOTED_CHARACTER_REPRESENTATION* DOUBLE_QUOTE
+ ;
+
+fragment UNBROKEN_ACCENT_QUOTED_CHARACTER_SEQUENCE
+ : GRAVE_ACCENT ACCENT_QUOTED_CHARACTER_REPRESENTATION* GRAVE_ACCENT
+ ;
+
+fragment SINGLE_QUOTED_CHARACTER_REPRESENTATION:
+ (ESCAPED_CHARACTER | ~['\\\r\n])+
+ ;
+
+fragment DOUBLE_QUOTED_CHARACTER_REPRESENTATION:
+ (ESCAPED_CHARACTER | ~["\\\r\n])+
+ ;
+
+fragment ACCENT_QUOTED_CHARACTER_REPRESENTATION:
+ (ESCAPED_CHARACTER | ~[`\\\r\n])+
+ ;
+
+fragment ESCAPED_CHARACTER
+ : ESCAPED_REVERSE_SOLIDUS
+ | ESCAPED_QUOTE
+ | ESCAPED_DOUBLE_QUOTE
+ | ESCAPED_GRAVE_ACCENT
+ | ESCAPED_TAB
+ | ESCAPED_BACKSPACE
+ | ESCAPED_NEW_LINE
+ | ESCAPED_CARRIAGE_RETURN
+ | ESCAPED_FORM_FEED
+ | ESCAPED_UNICODE4_DIGIT_VALUE
+ | ESCAPED_UNICODE6_DIGIT_VALUE
+ ;
+
+fragment ESCAPED_REVERSE_SOLIDUS: REVERSE_SOLIDUS REVERSE_SOLIDUS;
+fragment ESCAPED_QUOTE: REVERSE_SOLIDUS QUOTE;
+fragment ESCAPED_DOUBLE_QUOTE: REVERSE_SOLIDUS DOUBLE_QUOTE;
+fragment ESCAPED_GRAVE_ACCENT: REVERSE_SOLIDUS GRAVE_ACCENT;
+fragment ESCAPED_TAB: REVERSE_SOLIDUS 't';
+fragment ESCAPED_BACKSPACE: REVERSE_SOLIDUS 'b';
+fragment ESCAPED_NEW_LINE: REVERSE_SOLIDUS 'n';
+fragment ESCAPED_CARRIAGE_RETURN: REVERSE_SOLIDUS 'r';
+fragment ESCAPED_FORM_FEED: REVERSE_SOLIDUS 'f';
+fragment ESCAPED_UNICODE4_DIGIT_VALUE:
+ REVERSE_SOLIDUS 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT;
+fragment ESCAPED_UNICODE6_DIGIT_VALUE:
+ REVERSE_SOLIDUS 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT;
+
+// Todo: Finish this. It is tricky how it interacts with <separator>
+BYTE_STRING_LITERAL
+ : 'X' QUOTE SPACE* (HEX_DIGIT SPACE* HEX_DIGIT SPACE*)* QUOTE
+ ;
+
+UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_EXACT_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION EXACT_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITHOUT_SUFFIX
+ : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION
+ ;
+
+UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION APPROXIMATE_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_EXACT_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_IN_COMMON_NOTATION EXACT_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITHOUT_SUFFIX
+ : UNSIGNED_DECIMAL_IN_COMMON_NOTATION
+ ;
+
+UNSIGNED_DECIMAL_IN_COMMON_NOTATION_WITH_APPROXIMATE_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_IN_COMMON_NOTATION APPROXIMATE_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_INTEGER_WITH_EXACT_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_INTEGER EXACT_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_INTEGER_WITH_APPROXIMATE_NUMBER_SUFFIX
+ : UNSIGNED_DECIMAL_INTEGER APPROXIMATE_NUMBER_SUFFIX
+ ;
+
+UNSIGNED_DECIMAL_INTEGER
+ : DIGIT (UNDERSCORE? DIGIT)*
+ ;
+
+fragment EXACT_NUMBER_SUFFIX
+ : 'M'
+ ;
+
+fragment UNSIGNED_DECIMAL_IN_SCIENTIFIC_NOTATION
+ : MANTISSA 'E' EXPONENT
+ ;
+
+fragment MANTISSA
+ : UNSIGNED_DECIMAL_IN_COMMON_NOTATION
+ | UNSIGNED_DECIMAL_INTEGER
+ ;
+
+fragment EXPONENT
+ : SIGNED_DECIMAL_INTEGER
+ ;
+
+fragment UNSIGNED_DECIMAL_IN_COMMON_NOTATION
+ : UNSIGNED_DECIMAL_INTEGER (PERIOD UNSIGNED_DECIMAL_INTEGER?)
+ | PERIOD UNSIGNED_DECIMAL_INTEGER
+ ;
+
+fragment SIGNED_DECIMAL_INTEGER
+ : (PLUS_SIGN | MINUS_SIGN)? UNSIGNED_DECIMAL_INTEGER
+ ;
+
+UNSIGNED_HEXADECIMAL_INTEGER
+ : '0x' ('_'? HEX_DIGIT)+
+ ;
+
+UNSIGNED_OCTAL_INTEGER
+ : '0o' ('_'? OCTAL_DIGIT)+
+ ;
+
+UNSIGNED_BINARY_INTEGER
+ : '0b' ('_'? BINARY_DIGIT)+
+ ;
+
+fragment APPROXIMATE_NUMBER_SUFFIX
+ : 'F'
+ | 'D'
+ ;
+
+// 21.3 <token>, <separator>, and <identifier>
+
+// Reserved words
+ABS: 'ABS';
+ACOS: 'ACOS';
+ALL: 'ALL';
+ALL_DIFFERENT: 'ALL_DIFFERENT';
+AND: 'AND';
+ANY: 'ANY';
+ARRAY: 'ARRAY';
+AS: 'AS';
+ASC: 'ASC';
+ASCENDING: 'ASCENDING';
+ASIN: 'ASIN';
+AT: 'AT';
+ATAN: 'ATAN';
+AVG: 'AVG';
+BIG: 'BIG';
+BIGINT: 'BIGINT';
+BINARY: 'BINARY';
+BOOL: 'BOOL';
+BOOLEAN: 'BOOLEAN';
+BOTH: 'BOTH';
+BTRIM: 'BTRIM';
+BY: 'BY';
+BYTE_LENGTH: 'BYTE_LENGTH';
+BYTES: 'BYTES';
+CALL: 'CALL';
+CARDINALITY: 'CARDINALITY';
+CASE: 'CASE';
+CAST: 'CAST';
+CEIL: 'CEIL';
+CEILING: 'CEILING';
+CHAR: 'CHAR';
+CHAR_LENGTH: 'CHAR_LENGTH';
+CHARACTER_LENGTH: 'CHARACTER_LENGTH';
+CHARACTERISTICS: 'CHARACTERISTICS';
+CLOSE: 'CLOSE';
+COALESCE: 'COALESCE';
+COLLECT_LIST: 'COLLECT_LIST';
+COMMIT: 'COMMIT';
+COPY: 'COPY';
+COS: 'COS';
+COSH: 'COSH';
+COT: 'COT';
+COUNT: 'COUNT';
+CREATE: 'CREATE';
+CURRENT_DATE: 'CURRENT_DATE';
+CURRENT_GRAPH: 'CURRENT_GRAPH';
+CURRENT_PROPERTY_GRAPH: 'CURRENT_PROPERTY_GRAPH';
+CURRENT_SCHEMA: 'CURRENT_SCHEMA';
+CURRENT_TIME: 'CURRENT_TIME';
+CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP';
+DATE: 'DATE';
+DATETIME: 'DATETIME';
+DAY: 'DAY';
+DEC: 'DEC';
+DECIMAL: 'DECIMAL';
+DEGREES: 'DEGREES';
+DELETE: 'DELETE';
+DESC: 'DESC';
+DESCENDING: 'DESCENDING';
+DETACH: 'DETACH';
+DISTINCT: 'DISTINCT';
+DOUBLE: 'DOUBLE';
+DROP: 'DROP';
+DURATION: 'DURATION';
+DURATION_BETWEEN: 'DURATION_BETWEEN';
+ELEMENT_ID: 'ELEMENT_ID';
+ELSE: 'ELSE';
+END: 'END';
+EXCEPT: 'EXCEPT';
+EXISTS: 'EXISTS';
+EXP: 'EXP';
+FILTER: 'FILTER';
+FINISH: 'FINISH';
+FLOAT: 'FLOAT';
+FLOAT16: 'FLOAT16';
+FLOAT32: 'FLOAT32';
+FLOAT64: 'FLOAT64';
+FLOAT128: 'FLOAT128';
+FLOAT256: 'FLOAT256';
+FLOOR: 'FLOOR';
+FOR: 'FOR';
+FROM: 'FROM';
+GROUP: 'GROUP';
+HAVING: 'HAVING';
+HOME_GRAPH: 'HOME_GRAPH';
+HOME_PROPERTY_GRAPH: 'HOME_PROPERTY_GRAPH';
+HOME_SCHEMA: 'HOME_SCHEMA';
+HOUR: 'HOUR';
+IF: 'IF';
+IN: 'IN';
+INSERT: 'INSERT';
+INT: 'INT';
+INTEGER: 'INTEGER';
+INT8: 'INT8';
+INTEGER8: 'INTEGER8';
+INT16: 'INT16';
+INTEGER16: 'INTEGER16';
+INT32: 'INT32';
+INTEGER32: 'INTEGER32';
+INT64: 'INT64';
+INTEGER64: 'INTEGER64';
+INT128: 'INT128';
+INTEGER128: 'INTEGER128';
+INT256: 'INT256';
+INTEGER256: 'INTEGER256';
+INTERSECT: 'INTERSECT';
+INTERVAL: 'INTERVAL';
+IS: 'IS';
+LEADING: 'LEADING';
+LEFT: 'LEFT';
+LET: 'LET';
+LIKE: 'LIKE';
+LIMIT: 'LIMIT';
+LIST: 'LIST';
+LN: 'LN';
+LOCAL: 'LOCAL';
+LOCAL_DATETIME: 'LOCAL_DATETIME';
+LOCAL_TIME: 'LOCAL_TIME';
+LOCAL_TIMESTAMP: 'LOCAL_TIMESTAMP';
+LOG: 'LOG';
+LOG10: 'LOG10';
+LOWER: 'LOWER';
+LTRIM: 'LTRIM';
+MATCH: 'MATCH';
+MAX: 'MAX';
+MIN: 'MIN';
+MINUTE: 'MINUTE';
+MOD: 'MOD';
+MONTH: 'MONTH';
+NEXT: 'NEXT';
+NODETACH: 'NODETACH';
+NORMALIZE: 'NORMALIZE';
+NOT: 'NOT';
+NOTHING: 'NOTHING';
+NULL: 'NULL';
+NULLS: 'NULLS';
+NULLIF: 'NULLIF';
+OCTET_LENGTH: 'OCTET_LENGTH';
+OF: 'OF';
+OFFSET: 'OFFSET';
+OPTIONAL: 'OPTIONAL';
+OR: 'OR';
+ORDER: 'ORDER';
+OTHERWISE: 'OTHERWISE';
+PARAMETER: 'PARAMETER';
+PARAMETERS: 'PARAMETERS';
+PATH: 'PATH';
+PATH_LENGTH: 'PATH_LENGTH';
+PATHS: 'PATHS';
+PERCENTILE_CONT: 'PERCENTILE_CONT';
+PERCENTILE_DISC: 'PERCENTILE_DISC';
+POWER: 'POWER';
+PRECISION: 'PRECISION';
+PROPERTY_EXISTS: 'PROPERTY_EXISTS';
+RADIANS: 'RADIANS';
+REAL: 'REAL';
+RECORD: 'RECORD';
+REMOVE: 'REMOVE';
+REPLACE: 'REPLACE';
+RESET: 'RESET';
+RETURN: 'RETURN';
+RIGHT: 'RIGHT';
+ROLLBACK: 'ROLLBACK';
+RTRIM: 'RTRIM';
+SAME: 'SAME';
+SCHEMA: 'SCHEMA';
+SECOND: 'SECOND';
+SELECT: 'SELECT';
+SESSION: 'SESSION';
+SESSION_USER: 'SESSION_USER';
+SET: 'SET';
+SIGNED: 'SIGNED';
+SIN: 'SIN';
+SINH: 'SINH';
+SIZE: 'SIZE';
+SKIP_RESERVED_WORD: 'SKIP';
+SMALL: 'SMALL';
+SMALLINT: 'SMALLINT';
+SQRT: 'SQRT';
+START: 'START';
+STDDEV_POP: 'STDDEV_POP';
+STDDEV_SAMP: 'STDDEV_SAMP';
+STRING: 'STRING';
+SUM: 'SUM';
+TAN: 'TAN';
+TANH: 'TANH';
+THEN: 'THEN';
+TIME: 'TIME';
+TIMESTAMP: 'TIMESTAMP';
+TRAILING: 'TRAILING';
+TRIM: 'TRIM';
+TYPED: 'TYPED';
+UBIGINT: 'UBIGINT';
+UINT: 'UINT';
+UINT8: 'UINT8';
+UINT16: 'UINT16';
+UINT32: 'UINT32';
+UINT64: 'UINT64';
+UINT128: 'UINT128';
+UINT256: 'UINT256';
+UNION: 'UNION';
+UNSIGNED: 'UNSIGNED';
+UPPER: 'UPPER';
+USE: 'USE';
+USMALLINT: 'USMALLINT';
+VALUE: 'VALUE';
+VARBINARY: 'VARBINARY';
+VARCHAR: 'VARCHAR';
+VARIABLE: 'VARIABLE';
+WHEN: 'WHEN';
+WHERE: 'WHERE';
+WITH: 'WITH';
+XOR: 'XOR';
+YEAR: 'YEAR';
+YIELD: 'YIELD';
+ZONED: 'ZONED';
+ZONED_DATETIME: 'ZONED_DATETIME';
+ZONED_TIME: 'ZONED_TIME';
+
+// Prereserved words
+ABSTRACT: 'ABSTRACT';
+AGGREGATE: 'AGGREGATE';
+AGGREGATES: 'AGGREGATES';
+ALTER: 'ALTER';
+CATALOG: 'CATALOG';
+CLEAR: 'CLEAR';
+CLONE: 'CLONE';
+CONSTRAINT: 'CONSTRAINT';
+CURRENT_ROLE: 'CURRENT_ROLE';
+CURRENT_USER: 'CURRENT_USER';
+DATA: 'DATA';
+DIRECTORY: 'DIRECTORY';
+DRYRUN: 'DRYRUN';
+EXACT: 'EXACT';
+EXISTING: 'EXISTING';
+FUNCTION: 'FUNCTION';
+GQLSTATUS: 'GQLSTATUS';
+GRANT: 'GRANT';
+INSTANT: 'INSTANT';
+INFINITY: 'INFINITY';
+NUMBER: 'NUMBER';
+NUMERIC: 'NUMERIC';
+ON: 'ON';
+OPEN: 'OPEN';
+PARTITION: 'PARTITION';
+PROCEDURE: 'PROCEDURE';
+PRODUCT: 'PRODUCT';
+PROJECT: 'PROJECT';
+QUERY: 'QUERY';
+RECORDS: 'RECORDS';
+REFERENCE: 'REFERENCE';
+RENAME: 'RENAME';
+REVOKE: 'REVOKE';
+SUBSTRING: 'SUBSTRING';
+SYSTEM_USER: 'SYSTEM_USER';
+TEMPORAL: 'TEMPORAL';
+UNIQUE: 'UNIQUE';
+UNIT: 'UNIT';
+VALUES: 'VALUES';
+
+// Nonreserved words
+ACYCLIC: 'ACYCLIC';
+BINDING: 'BINDING';
+BINDINGS: 'BINDINGS';
+CONNECTING: 'CONNECTING';
+DESTINATION: 'DESTINATION';
+DIFFERENT: 'DIFFERENT';
+DIRECTED: 'DIRECTED';
+EDGE: 'EDGE';
+EDGES: 'EDGES';
+ELEMENT: 'ELEMENT';
+ELEMENTS: 'ELEMENTS';
+FIRST: 'FIRST';
+GRAPH: 'GRAPH';
+GROUPS: 'GROUPS';
+KEEP: 'KEEP';
+LABEL: 'LABEL';
+LABELED: 'LABELED';
+LABELS: 'LABELS';
+LAST: 'LAST';
+NFC: 'NFC';
+NFD: 'NFD';
+NFKC: 'NFKC';
+NFKD: 'NFKD';
+NO: 'NO';
+NODE: 'NODE';
+NORMALIZED: 'NORMALIZED';
+ONLY: 'ONLY';
+ORDINALITY: 'ORDINALITY';
+PROPERTY: 'PROPERTY';
+READ: 'READ';
+RELATIONSHIP: 'RELATIONSHIP';
+RELATIONSHIPS: 'RELATIONSHIPS';
+REPEATABLE: 'REPEATABLE';
+SHORTEST: 'SHORTEST';
+SIMPLE: 'SIMPLE';
+SOURCE: 'SOURCE';
+TABLE: 'TABLE';
+TEMP: 'TEMP';
+TO: 'TO';
+TRAIL: 'TRAIL';
+TRANSACTION: 'TRANSACTION';
+TYPE: 'TYPE';
+UNDIRECTED: 'UNDIRECTED';
+VERTEX: 'VERTEX';
+WALK: 'WALK';
+WITHOUT: 'WITHOUT';
+WRITE: 'WRITE';
+ZONE: 'ZONE';
+
+fragment SEPARATED_IDENTIFIER
+ : DELIMITED_IDENTIFIER
+ | EXTENDED_IDENTIFIER
+ ;
+
+REGULAR_IDENTIFIER
+ : IDENTIFIER_START IDENTIFIER_EXTEND*
+ ;
+
+fragment EXTENDED_IDENTIFIER
+ : IDENTIFIER_EXTEND+
+ ;
+
+fragment DELIMITED_IDENTIFIER
+ : DOUBLE_QUOTED_CHARACTER_SEQUENCE
+ | ACCENT_QUOTED_CHARACTER_SEQUENCE
+ ;
+
+SUBSTITUTED_PARAMETER_REFERENCE
+ : DOUBLE_DOLLAR_SIGN PARAMETER_NAME
+ ;
+
+GENERAL_PARAMETER_REFERENCE
+ : DOLLAR_SIGN PARAMETER_NAME
+ ;
+
+fragment IDENTIFIER_START
+ : ID_Start
+ | Pc
+ ;
+
+fragment IDENTIFIER_EXTEND
+ : ID_Continue
+ ;
+
+fragment ID_Start
+ : [\p{ID_Start}]
+ ;
+
+fragment ID_Continue
+ : [\p{ID_Continue}]
+ ;
+
+MULTISET_ALTERNATION_OPERATOR: '|+|';
+
+BRACKET_RIGHT_ARROW: ']->';
+BRACKET_TILDE_RIGHT_ARROW: ']~>';
+CONCATENATION_OPERATOR: '||';
+DOUBLE_COLON: '::';
+DOUBLE_DOLLAR_SIGN: '$$';
+DOUBLE_PERIOD: '..';
+GREATER_THAN_OR_EQUALS_OPERATOR: '>=';
+LEFT_ARROW: '<-';
+LEFT_ARROW_TILDE: '<~';
+LEFT_ARROW_BRACKET: '<-[';
+LEFT_ARROW_TILDE_BRACKET: '<~[';
+LEFT_MINUS_RIGHT: '<->';
+LEFT_MINUS_SLASH: '<-/';
+LEFT_TILDE_SLASH: '<~/';
+LESS_THAN_OR_EQUALS_OPERATOR: '<=';
+MINUS_LEFT_BRACKET: '-[';
+MINUS_SLASH: '-/';
+NOT_EQUALS_OPERATOR: '<>';
+RIGHT_ARROW: '->';
+RIGHT_BRACKET_MINUS: ']-';
+RIGHT_BRACKET_TILDE: ']~';
+RIGHT_DOUBLE_ARROW: '=>';
+SLASH_MINUS: '/-';
+SLASH_MINUS_RIGHT: '/->';
+SLASH_TILDE: '/~';
+SLASH_TILDE_RIGHT: '/~>';
+TILDE_LEFT_BRACKET: '~[';
+TILDE_RIGHT_ARROW: '~>';
+TILDE_SLASH: '~/';
+
+// 21.4 GQL terminal characters
+
+AMPERSAND: '&';
+ASTERISK: '*';
+COLON: ':';
+COMMA: ',';
+COMMERCIAL_AT: '@';
+DOLLAR_SIGN: '$';
+DOUBLE_QUOTE: '"';
+EQUALS_OPERATOR: '=';
+EXCLAMATION_MARK: '!';
+RIGHT_ANGLE_BRACKET: '>';
+GRAVE_ACCENT: '`';
+LEFT_BRACE: '{';
+LEFT_BRACKET: '[';
+LEFT_PAREN: '(';
+LEFT_ANGLE_BRACKET: '<';
+MINUS_SIGN: '-';
+PERCENT: '%';
+PERIOD: '.';
+PLUS_SIGN: '+';
+QUESTION_MARK: '?';
+QUOTE: '\'';
+REVERSE_SOLIDUS: '\\';
+RIGHT_BRACE: '}';
+RIGHT_BRACKET: ']';
+RIGHT_PAREN: ')';
+SOLIDUS: '/';
+TILDE: '~';
+UNDERSCORE: '_';
+VERTICAL_BAR: '|';
+
+fragment HEX_DIGIT
+ : [0-9a-f]
+ ;
+
+fragment DIGIT
+ : [0-9]
+ ;
+
+fragment OCTAL_DIGIT
+ : [0-7]
+ ;
+
+fragment BINARY_DIGIT
+ : [0-1]
+ ;
+
+SP
+ : (WHITESPACE)+
+ -> channel(HIDDEN)
+ ;
+
+WHITESPACE
+ : SPACE
+ | TAB
+ | LF
+ | VT
+ | FF
+ | CR
+ | FS
+ | GS
+ | RS
+ | US
+ | '\u1680'
+ | '\u180e'
+ | '\u2000'
+ | '\u2001'
+ | '\u2002'
+ | '\u2003'
+ | '\u2004'
+ | '\u2005'
+ | '\u2006'
+ | '\u2008'
+ | '\u2009'
+ | '\u200a'
+ | '\u2028'
+ | '\u2029'
+ | '\u205f'
+ | '\u3000'
+ | '\u00a0'
+ | '\u2007'
+ | '\u202f'
+ ;
+
+BRACKETED_COMMENT: '/*' .*? '*/' -> channel(HIDDEN);
+
+SIMPLE_COMMENT_SOLIDUS: '//' ~[\r\n]* -> channel(HIDDEN);
+
+SIMPLE_COMMENT_MINUS: '--' ~[\r\n]* -> channel(HIDDEN);
+
+fragment GS : [\u001D];
+
+fragment FS : [\u001C];
+
+fragment CR : [\r];
+
+fragment Sc : [\p{Sc}];
+
+fragment SPACE : [ ];
+
+fragment Pc : [\p{Pc}];
+
+fragment TAB : [\t];
+
+fragment LF : [\n];
+
+fragment VT : [\u000B];
+
+fragment US : [\u001F];
+
+fragment FF: [\f];
+
+fragment RS: [\u001E];
--- /dev/null
+package gql;
+
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.tree.*;
+
+public class EchoParser {
+ public static void main(String[] args) throws Exception {
+ if (args.length != 1) {
+ System.err.println("Usage: java gql.EchoParser <input-file>");
+ System.exit(1);
+ }
+
+ CharStream input = CharStreams.fromFileName(args[0]);
+ GQLLexer lexer = new GQLLexer(input);
+ CommonTokenStream tokens = new CommonTokenStream(lexer);
+ GQLParser parser = new GQLParser(tokens);
+
+ ParseTree tree = parser.root(); // Adjust to match your grammar's start rule
+ System.out.println(tree.toStringTree(parser));
+ }
+}
-# Used for C or C++ files along with the makefile found in the 'resource' project
-# how to run make
-SHELL=/bin/bash
-RESOURCE := /var/user_data/Thomas-developer/resource/development
+# FL = File List
-# picks up globally defined variables, that can be used/modified while defining local variables
-include $(RESOURCE)/library/makefile-environment
+Island = land island # value has embedded and trailing spaces
-ENVDIR=../env
-DOCDIR=lector
-EXECDIR=machine
-LIBDIR=linker
-SRCDIR=compiler
-TESTDIR=test
-TMPDIR=temporary
-TRYDIR=experiment
+ANTLR_JAR = ../tool/executor/antlr-4.9.2-complete.jar
-C=gcc
+ANTLR_IN_DIR = ANTLR
+ANTLR_OUT_DIR = javac/antlr
+ANTLR_IN_FL = $(wildcard $(ANTLR_IN_DIR)/*.g4)
+ANTLR_OUT_FL = $(patsubst %.g4,$(ANTLR_OUT_DIR)/%.java,$(ANTLR_IN_FL))
-CFLAGS= -include "compiler/environment.h" -std=gnu18 -Werror -O0 -ggdb -DDEBUG -DDEBUGDB -I$(SRCDIR) -I$(RESOURCE)/include -I$(ENVDIR)/include -I/usr/include/libevdev-1.0
-LINKFLAGS=-L$(LIBDIR) -L$(RESCOURCE)/lib/ -L$(ENVDIR)/lib/ -L/usr/lib -L/usr/lib64 -l$(PROJECT) -levdev
+JAR = $(JAVA_HOME)/bin/jar
+JAVAC = $(JAVA_HOME)/bin/javac
+JAVA_IN_DIR = javac
+JAVA_IN_FL = $(wildcard $(JAVA_IN_DIR)/*.java) $(ANTLR_OUT_FL)
+JVM_IN_DIR = jvm
-#--------------------------------------------------------------------------------
-# import the rules
-#
+# programs we are creating
+GQL_SYNTAX_TREE = GQL_syntax_tree
+#...
+OUT_FL = $(JVM_IN_DIR)/$(GQL_SYNTAX_TREE).jar
-# the dash prefix means to ignore include errors, the DEPFILE might not exist yet
--include $(DEPFILE)
-include $(RESOURCE)/library/makefile
+
+.PHONY: all
+all: grammar program
+
+.PHONY: program
+program: setup $(OUT_FL)
+
+.PHONY: grammar
+grammar: setup $(ANTLR_OUT_FL)
+
+.PHONY: variable
+variable:
+ $(info ISLAND is '$(ISLAND)')
+ $(info JAVAC is '$(JAVAC)')
+ $(info JAR is '$(JAR)')
+ $(info ANTLR_JAR is '$(ANTLR_JAR)')
+ $(info JAVA_IN_DIR is '$(JAVA_IN_DIR)')
+ $(info JVM_IN_DIR is '$(JVM_IN_DIR)')
+ $(info ANTLR_IN_DIR is '$(ANTLR_IN_DIR)')
+ $(info ANTLR_OUT_DIR is '$(ANTLR_OUT_DIR)')
+ $(info JAVA_IN_FL is '$(JAVA_IN_FL)')
+ $(info ANTLR_IN_FL is '$(ANTLR_IN_FL)')
+ $(info ANTLR_OUT_FL is '$(ANTLR_OUT_FL)')
+
+.PHONY: version
+version:
+ @ $(JAVAC) --version
+ @ $(JAR) --version
+ $(info ANTLR_JAR is '$(ANTLR_JAR)')
+ @ make -v | head -n 1
+
+.PHONY: setup
+setup:
+ mkdir -p $(JAVA_IN_DIR)/gql
+ mkdir -p $(JVM_IN_DIR)
+ mkdir -p $(ANTLR_OUT_DIR)
+
+.PHONY: clean
+clean:
+ rm -rf $(JVM_IN_DIR)/*
+ rm -rf $(ANTLR_OUT_DIR)/*.java
+
+# Compile ANTLR grammars
+$(ANTLR_OUT_DIR)/%.java: $(ANTLR_IN_DIR)/%.g4
+ java -jar $(ANTLR_JAR) -Dlanguage=Java -o $(ANTLR_OUT_DIR) $<
+
+# Compile Java sources
+$(JVM_IN_DIR)/%.class: $(JAVA_IN_DIR)/gql/%.java $(ANTLR_OUT_FL)
+ $(JAVAC) -d $(JVM_IN_DIR) -cp $(ANTLR_JAR) $<
+
+# Create jar file
+$(JVM_IN_DIR)/$(GQL_SYNTAX_TREE).jar: $(patsubst $(JAVA_IN_DIR)/gql/%.java,$(JVM_IN_DIR)/%.class,$(JAVA_IN_FL))
+ $(JAR) cvf $@ -C $(JVM_IN_DIR) .
--- /dev/null
+JAVAC = $(JAVA_HOME)/bin/javac
+JAR = $(JAVA_HOME)/bin/jar
+ANTLR_JAR = ../tool/executor/antlr-4.9.2-complete.jar
+JAVA_DIR = javac
+JVM_DIR = jvm
+ANTLR_DIR = ANTLR
+ANTLR_GEN_DIR = javac/antlr
+
+# Source files
+JAVA_SOURCES = $(wildcard $(JAVA_DIR)/*.java)
+ANTLR_GRAMMARS = $(wildcard $(ANTLR_DIR)/*.g4)
+
+# Generated ANTLR Java files
+ANTLR_GENERATED_SOURCES = $(patsubst $(ANTLR_DIR)/%.g4,$(ANTLR_GEN_DIR)/%.java,$(notdir $(ANTLR_GRAMMARS)))
+
+.PHONY: all
+all: setup $(ANTLR_GENERATED_SOURCES) $(JAVA_SOURCES:.java=.class) $(JVM_DIR)/GQLEchoParser.jar
+
+.PHONY: variable
+variable:
+ $(info JAVAC is '$(JAVAC)')
+ $(info JAR is '$(JAR)')
+ $(info ANTLR_JAR is '$(ANTLR_JAR)')
+ $(info JAVA_DIR is '$(JAVA_DIR)')
+ $(info JVM_DIR is '$(JVM_DIR)')
+ $(info ANTLR_DIR is '$(ANTLR_DIR)')
+ $(info ANTLR_GEN_DIR is '$(ANTLR_GEN_DIR)')
+ $(info JAVA_SOURCES is '$(JAVA_SOURCES)')
+ $(info ANTLR_GRAMMARS is '$(ANTLR_GRAMMARS)')
+ $(info ANTLR_GENERATED_SOURCES is '$(ANTLR_GENERATED_SOURCES)')
+
+.PHONY: version
+version:
+ @ $(JAVAC) --version
+ @ $(JAR) --version
+ @ echo $(ANTLR_JAR)
+ @ make -v | head -n 1
+
+.PHONY: setup
+setup:
+ mkdir -p $(JVM_DIR)
+ mkdir -p $(JAVA_DIR)/gql
+ mkdir -p $(ANTLR_GEN_DIR)
+
+.PHONY: clean
+clean:
+ rm -rf $(JVM_DIR)/*
+ rm -rf $(ANTLR_GEN_DIR)/*.java
+
+# Compile ANTLR grammars
+$(ANTLR_GEN_DIR)/%.java: $(ANTLR_DIR)/%.g4
+ java -jar $(ANTLR_JAR) -Dlanguage=Java -o $(@D) $<
+
+# Compile Java sources
+$(JVM_DIR)/%.class: $(JAVA_DIR)/gql/%.java $(ANTLR_GENERATED_SOURCES)
+ $(JAVAC) -d $(JVM_DIR) -cp $(ANTLR_JAR) $<
+
+# Create jar file
+$(JVM_DIR)/GQLEchoParser.jar: $(patsubst $(JAVA_DIR)/gql/%.java,$(JVM_DIR)/%.class,$(JAVA_SOURCES))
+ $(JAR) cvf $@ -C $(JVM_DIR) .
--- /dev/null
+#!/usr/bin/env bash
+
+# Get the project root path by removing 'executor' from the script path
+script_path="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
+project_root="${script_path%/*}"
+
+# Function to handle errors
+handle_error() {
+ echo "Error occurred during cleaning. Exiting."
+ exit 1
+}
+
+# Remove the contents of the tool directory while preserving the directory itself and .gitignore
+find "$project_root/tool" -mindepth 1 ! -name ".gitignore" -exec rm -rf {} + || handle_error
+
+# Unset environment variables if they are set
+[ -n "$JAVA_HOME" ] && unset JAVA_HOME
+[ -n "$CLASSPATH" ] && unset CLASSPATH
+
+echo "Project clean complete. All tools have been removed."
# Define the versions and URLs for the JDK and ANTLR
JDK_VERSION="17.0.2"
-JDK_URL="https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.2%2B8/OpenJDK17U-jdk_x64_linux_hotspot_17.0.2_8.tar.gz"
+JDK_URL="https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.2+8/OpenJDK17U-jdk_x64_linux_hotspot_17.0.2_8.tar.gz"
ANTLR_VERSION="4.9.2"
ANTLR_URL="https://www.antlr.org/download/antlr-$ANTLR_VERSION-complete.jar"
# Set JAVA_HOME and update PATH to use the local JDK
export JAVA_HOME="$jdk_dir"
-export PATH="$JAVA_HOME/bin:$PATH"
-
-# Move the JDK binaries to the tool/executor directory
-mv "$JAVA_HOME/bin/"* "$project_root/tool/executor/" || handle_error
-rm -rf "$JAVA_HOME/bin"
+export PATH="$JAVA_HOME/bin:$project_root/tool/executor:$PATH"
# Download ANTLR jar file and place it in the tool/executor directory
curl -o "$project_root/tool/executor/antlr-$ANTLR_VERSION-complete.jar" "$ANTLR_URL" || handle_error
export PATH="$PATH:$project_root/tool/executor"
echo "Installation complete. Java and ANTLR have been installed successfully."
-# echo "To set the environment variables for future sessions, add the following lines to your ~/.bashrc or ~/.bash_profile:"
-# echo "export JAVA_HOME=\"$JAVA_HOME\""
-# echo "export PATH=\"$JAVA_HOME/bin:$PATH:$project_root/tool/executor\""
-# echo "export CLASSPATH=\"$CLASSPATH\""
project_root="${script_path%/*}"
export PROJECT=$(basename "$project_root")
-# Set PATH to include tool/executor
-export PATH="$project_root/tool/executor:$PATH"
+# Set JAVA_HOME
+export JAVA_HOME="$project_root/tool/jdk-17.0.2+8"
+
+# Set PATH to include tool/executor and JAVA_HOME/bin
+export PATH="$JAVA_HOME/bin:$project_root/tool/executor:$PATH"
# Set environment variables for ANTLR
export CLASSPATH=".:$project_root/tool/executor/antlr-4.9.2-complete.jar:$CLASSPATH"
alias ls="ls -a"
cd "$project_root/developer"
+
+echo $0 "complete"
* `category_processed_by`
* `purpose_of`
+The `processed_by` property is also known as `input`, which in turn is
+often shortened to `in`.
+
+
+
When source files of different types are mixed in a directory, we generalize
to the category. A mix of Rust and C files would be called `compiler` as the
category of the programs used to process the files. A mix of interpreted scripts
user insight as to what the file is for, we drop down to the `purpose_of`
property.
+# Implicit Property Name
+
+When naming a directory we typically don't add the property name, but only
+put its value. Hence the directory that contains files to be processed
+by the `javac` program will typically be called `javac`. When we need to include the
+property name, we can add a suffix. `javac_input`.
+
+Sometimes a directory name will be held in a variable, and we need to further
+distinguish the fact that the variable is referring to a directory. Say for
+example a variable that holds the name of the directory that holds files
+to be processed by `javac`, can be called `javac_input_directory`, and if
+that is too long, `javac_in_dir` is typically used.
+
+
# Why directory names are often singular
Each and every file in a directory has the same property value
projects / GQL-to-Cypher / commitdiff