Neo4查询语言Cypher3.0.7在antlr4下的文法(原创分享）

本人网上找了很久都没有一个比较好的cypher文法，于是花了一段时间研究cypher和编写基于antlr4下的cypher文法。

希望对想用做cypher相关工具的朋友有一点用，欢迎交流。

珍重声明：该文法经过测试，能够在ANTLRWorks2.1下正确运行，并通过了官网上示例测试。

但不表示完美的，如有朋友用它是发现问题，请提交问题到项目git下或者在文章下留言。

另外由于csdn没有转针对antrl文法代码的着色方案，因此选择了actionscript语言着色，还可以看。

官网示例：https://neo4j.com/docs/developer-manual/3.0/cypher/
项目git地址：https://github.com/yoyoma214/Cypher-Antlr4-Grammer

 /*

  * MIT license

  * Copyright (C) 2016/12/10 adam

  */

 grammar Cypher;

 document: (unionQuery |  callClause | dropConstraint | dropIndexClause | importClause) ';'?;

 directive: CYPHER directiveItem (',' directiveItem )*;

 directiveItem:  id EQUAL expression ;

 createNode: CREATE assignGraphRelation (',' assignGraphRelation)*;

 unwind: UNWIND expression (AS id)? ;

 //merge;

 mergeClause: MERGE graphRelation mergeClauseOn*;

 mergeClauseOn:mergeOnCreate | mergeOnMatch;

 mergeOnCreate:  ON CREATE setClause;

 mergeOnMatch:  ON MATCH setClause;

 setClause: SET setClauseItem (',' setClauseItem)*;

 setClauseItem: assignExpression | setMap | setAddMap | setLabel ;

 setMap: id EQUAL(PARAMETER | nodePropertyList );

 setAddMap: id ADDEQUAL (PARAMETER | nodePropertyList );

 setLabel: id labelVar+;

 assignExpression: idPath EQUAL expression;

 procedure: idPath  expressionList? ;

 //index

 createIndexClause: CREATE INDEX ON labelVar '(' id ')';

 createUnique: CREATE UNIQUE graphRelation ( ',' graphRelation )*;

 useIndexClause: USING INDEX id labelVar '(' id ')';

 useScanClause: USING SCAN id labelVar ;

 useJoinClause: USING JOIN id (',' id)* ;

 dropIndexClause: DROP INDEX ON labelVar '(' id ')';

 callClause: CALL procedure (YIELD id)? returnClause?;

 createConstraint: CREATE CONSTRAINT ON (node | graphRelation) assert_;

 dropConstraint: DROP CONSTRAINT ON graphRelation assert_;

 assert_: ASSERT_ expression;

 unionQuery: directive? query unionClause* ;

 unionClause: UNION ALL? query;

 query: PROFILE? startClause?  (matchOrWith)*

        modifyCluase*

        returnClause? ;

 modifyCluase:createClause | mergeClause |setClause | deleteClause | removeClause | foreachClause;

 startClause: START  assignGraphRelation (',' assignGraphRelation)*;

 matchOrWith: matchClause |  unwind  | withClause;

 createClause:  createIndexClause | createUnique | createConstraint | createNode   ; //| createNodeMap

 matchClause : matchClauseItem+ (useIndexClause | useScanClause | useJoinClause)*

         whereClause?  ;

 matchClauseItem: OPTIONAL? MATCH assignGraphRelation (',' assignGraphRelation)*;

 assignGraphRelation: (id EQUAL)? (relationIndex | nodeIndex | graphRelation |  builtInCall);

 nodeIndex:  NODE labelVar '(' (id EQUAL expression | indexQueryString) ')';

 relationIndex: RELATIONSHIP labelVar '(' (id EQUAL expression | indexQueryString) ')';

 indexQueryString:STRING;

 whereClause: WHERE expression ;

 fetchVar:  fetchOneVar | allVar;

 fetchOneVar:( DISTINCT? idPath | expression) (AS var)?;

 allVar: MULIT;

 withClause:WITH fetchVar(',' fetchVar)*  orderBy? skipClause? limitClause? whereClause?;

 orderBy: ORDER BY orderByItem (',' orderByItem)*;

 orderByItem: idPath (ASC | DESC)?;

 skipClause: SKIP expression;

 limitClause: LIMIT expression;

 returnClause: RETURN fetchVar(',' fetchVar)* orderBy? skipClause? limitClause?;

 deleteClause: DETACH? DELETE deleteItem  (',' deleteItem)*;

 deleteItem:var | graphRelation;

 removeClause: removeLabel | removeProperty;

 removeLabel: REMOVE var+;

 removeProperty: REMOVE idPath;

 updateClause: SET updateItem (',' updateItem )*;

 updateItem: idPath EQUAL expression;

 foreachClause: FOREACH '(' var IN expression '|' (setClause | createClause) ')';

 nodePropertyList: json | PARAMETER;

 node : nodeEmpty | nodeNotEmpty ;

 nodeNotEmpty:  '(' id? labelVar*   nodePropertyList? ')' ;

 nodeEmpty: NIL;

 idPath: id ('.' id)*;

 graphRelation: node |  node relation*;

 relation: (relationToNext | relationToPrev | relationToBoth )

           node;

 relationToNext:'-' relationType?  ARROWAHEAD;

 relationToPrev:ARROWBACK relationType? '-';

 relationToBoth:'-' relationType? '-';

 relationType:  '['matchTag relationTypeRestrict? nodePropertyList? ']';

 matchTag: var? labelVar? ;

 relationTypeRestrict: relationTypeCounterRange | relationTypeCounterAll | relationTypeIdList ;

 relationTypeCounterRange: MULIT INTEGER? (DOUBLEDOT  INTEGER)? ;

 relationTypeCounterAll: MULIT ALL ;

 relationTypeIdList: labelVar ('|' labelVar)*;

 importClause: usingPeriodicCommit?

               loadCvs

               matchClause?

               modifyCluase*;    

 loadCvs:LOAD CSV (WITH HEADERS)? FROM STRING (AS id)? (FIELDTERMINATOR STRING)? ;

 usingPeriodicCommit:USING PERIODIC COMMIT integerCypher?;

 //expression

 expression   :   conditionalOrExpression ;

 conditionalOrExpression   :   conditionalAndExpression ( OR conditionalAndExpression )* ;

 conditionalAndExpression   :   valueLogical ( AND valueLogical )* ;

 valueLogical   :   relationalExpression ;

 argList   :   NIL | '(' DISTINCT? expression ( ',' expression )* ')'  ;

 expressionList   :   NIL | '(' expression ( ',' expression )* ')'  ;

 relationalExpression   : NOT? (relationalExpressionChain | relationalExpressionIsNull | relationalExpressionString | relationalExpressionIn | relationalExpresionExists | graphRelation | caseExpression | relationalIsUnique);

 relationalExpressionIn:numericExpression (  IN expression | NOT IN expression )? ;

 relationalExpressionChain: numericExpression relationalExpressionChainTtem* ;

 relationalExpressionChainTtem:(LT | LT_EQUAL |GT | GT_EQUAL |EQUAL | NOT_EQUAL |XOR ) numericExpression;

 relationalExpressionIsNull: numericExpression IS NULL;

 relationalExpressionString: relationalExpressionStartsWith | relationalExpressionEndsWith | relationalExpressionContains | relationalExpressionRegular;

 relationalExpressionStartsWith: numericExpression STARTS WITH STRING;

 relationalExpressionEndsWith: numericExpression ENDS WITH STRING;

 relationalExpressionContains: numericExpression CONTAINS STRING;

 relationalExpressionRegular:numericExpression EQUAL_REGUALR STRING;

 relationalIsUnique: idPath IS UNIQUE;

 relationalExpresionExists: EXISTS '(' expression ')';

 numericExpression   :   additiveExpression ;

 additiveExpression   :   multiplicativeExpression additiveExpressionRightPart* ;

 additiveExpressionRightPart:addMultiplicativeExpression | subtractionMultiplicativeExpression | additiveExpressionMulti;

 addMultiplicativeExpression : ADD multiplicativeExpression;

 subtractionMultiplicativeExpression: SUBTRACTION multiplicativeExpression ;

 multiplicativeExpression   :   unaryExpression multiplicativeExpressionItem* ;

 additiveExpressionMulti:

                            numericLiteral  multiplicativeExpressionItem *

                       ;

 multiplicativeExpressionItem:

                                  (MULIT | DIVISION) unaryExpression

                              ;

 unaryExpression   :

                       NEGATE primaryExpression

                     | ADD primaryExpression

                     | SUBTRACTION primaryExpression

                     | NOT primaryExpression

                     | primaryExpression ;

 primaryExpression   :

                      caseExpression

                     |brackettedExpression

                     |anyVal

                     |listExpression

                     |list

                     |primaryExpressionChain;

 rangeExpression: '[' numericLiteral DOUBLEDOT numericLiteral ']';

 primaryExpressionChain:

                           primaryExpressionChainItem primaryExpressionChainRightPart*

                       ;

 primaryExpressionChainRightPart:listFetch | '.' primaryExpressionChainItem | rangeExpression;

 primaryExpressionChainItem:

                               builtInCall | id

                           ;

 caseExpression: CASE expression? caseExpressionWhen+ caseExpressionElse? END ;

 caseExpressionWhen: WHEN expression THEN  expression;

 caseExpressionElse: ELSE expression;

 listExpression: listExpressionAll | listExpressionAny | listExpressionNone | listExpressionSingle;

 listExpressionExist:listExpressionAll | listExpressionAny | listExpressionNone | listExpressionSingle;

 listExpressionAll: ALL '('var IN expression WHERE listExpressionCondition  ')';

 listExpressionAny: ANY '('var IN expression WHERE listExpressionCondition  ')';

 listExpressionNone: NONE '('var IN expression WHERE listExpressionCondition  ')';

 listExpressionSingle: SINGLE '('var IN expression WHERE listExpressionCondition  ')';

 listExpressionCondition:  EXISTS '(' idPath  ')' | expression ;

 list: '[' anyVal (',' anyVal)* ']';

 listFetch : '[' expression ']';

 var : id ;

 brackettedExpression   :   '(' expression ')' ;

 builtInCall   :     pathFunc |  nodesFunc  | relationshipsFunc |extractFunc | filterFunc | absFunc | randFunc | roundFunc | sqrtFunc |signFunc | sinFunc | cosFunc |

            tanFunc | cotFunc |  asinFunc |  acosFunc | atanFunc |  atan2Func |  haversinFunc | degreesFunc | radiansFunc | pi | log10Func| logFunc | expFunc | e | countAllFunc |

            countFunc | collectFunc | sumFunc | avgFunc |  minFunc |  maxFunc |percentileDiscFunc | percentileContFunc | stdevFunc | stdevpFunc | toStringFunc | replaceStrFunc | substringStrFunc | leftStrFunc | rightStrFunc | trimStrFunc | ltrimStrFunc|

 rtrimStrFunc | upperStrFunc | lowerStrFunc | splitStrFunc | reverseStrFunc | lengthStrFunc | nodeId | rangeFunc | typeFunc | shortestPathFunc | allShortestPathsFunc | relsFunc | toLowerFunc |toInt | labelsFunc | timestampFunc | sizeFunc |

 coalesceFunc | headFunc | lastFunc | startNodeFunc | endNodeFunc | propertiesFunc | toFloatFunc |keysFunc | tailFunc | reduceFunc | floorFunc;

 pathFunc: LENGTH '(' expression ')';

 nodesFunc: NODES '(' expression ')';

 relationshipsFunc: RELATIONSHIPS '(' expression ')';

 extractFunc: EXTRACT '(' var IN expression '|' expression ')';

 filterFunc: FILTER  '(' var IN expression WHERE relationalExpression ')';

 absFunc: ABS '(' expression ')';

 randFunc:RAND NIL;

 roundFunc:ROUND '(' expression ')';

 sqrtFunc: SQRT '(' expression ')';

 signFunc: SIGN '(' expression ')';

 sinFunc:SIN '(' expression ')';

 cosFunc:COS '(' expression ')';

 tanFunc:TAN '(' expression ')';

 cotFunc:COT '(' expression ')';

 asinFunc:ASIN '(' expression ')';

 acosFunc:ACOS '(' expression ')';

 atanFunc:ATAN '(' expression ')';

 atan2Func:ATAN2 '(' expression ',' expression ')';

 haversinFunc:HAVERSIN '(' expression ')';

 degreesFunc:DEGREES '(' expression ')';

 radiansFunc:RADIANS '(' expression ')';

 pi:PI NIL;

 log10Func:LOG10 '(' expression ')';

 logFunc:LOG '(' expression ')';

 expFunc:EXP '(' expression ')';

 e: EFUNC NIL;

 countAllFunc:COUNT '(' '*' ')';

 countFunc:COUNT '(' DISTINCT? idPath ')';

 collectFunc:COLLECT '(' idPath ')';

 sumFunc:SUM '(' idPath ')';

 avgFunc:AVG '(' idPath ')';

 minFunc:MIN '(' idPath ')';

 maxFunc:MAX '(' idPath ')';

 percentileDiscFunc:PERCENTILEDISC '(' idPath ',' numericLiteral ')';

 percentileContFunc:PERCENTILECONT '(' idPath ',' numericLiteral ')';

 stdevFunc:STDEV '(' expression ')';

 stdevpFunc:STDEVP '(' expression ')';

 toStringFunc:TOSTRING '(' expression ')';

 replaceStrFunc:REPLACE '(' expression ',' expression ',' expression ')';

 substringStrFunc:SUBSTRING '(' expression ',' INTEGER (',' INTEGER)? ')';

 leftStrFunc:LEFT '(' expression ',' INTEGER ')';

 rightStrFunc:RIGHT '(' expression ',' INTEGER ')';

 trimStrFunc:TRIM '(' expression ')';

 ltrimStrFunc:LTRIM '(' expression ')';

 rtrimStrFunc:RTRIM '(' expression ')';

 upperStrFunc:UPPER '(' expression ')';

 lowerStrFunc:LOWER '(' expression ')';

 splitStrFunc:SPLIT '(' expression ',' STRING ')';

 reverseStrFunc:REVERSE '(' expression ')';

 lengthStrFunc:LENGTH '(' expression ')';

 nodeId: IDFUNC '(' id ')';

 rangeFunc: RANGE '(' expression ',' expression (',' expression)? ')';

 typeFunc: TYPE '(' id ')';

 shortestPathFunc: SHORTESTPATH '(' expression ')';

 relsFunc: RELS '(' expression ')';

 allShortestPathsFunc: ALLSHORTESTPATHS '(' expression ')';

 toLowerFunc: TOLOWER '(' expression ')';

 toInt:TOINT '(' expression ')';

 labelsFunc: LABELS '(' expression ')';

 timestampFunc:TIMESTAMP NIL;

 sizeFunc: SIZE '(' expression ')';

 coalesceFunc: COALESCE expressionList;

 headFunc: HEAD '(' expression ')';

 lastFunc: LAST '(' expression ')';

 startNodeFunc: STARTNODE '(' expression ')';

 endNodeFunc: ENDNODE '(' expression ')';

 propertiesFunc:PROPERTIES  '(' expression ')';

 toFloatFunc: TOFLOAT  '(' expression ')';

 keysFunc: KEYS '(' expression ')';

 tailFunc: TAIL '(' expression ')';

 reduceFunc: REDUCE '(' accumulator EQUAL expression ',' ID IN expression '|' expression ')';

 accumulator : ID;

 floorFunc: FLOOR '(' expression ')';     

 graphElment: id labelVar;

 anyVal :  STRING | BOOLEAN | NULL | parameterPath | numericLiteral |graphElment | idPath | json ;

 //json

 json:   jsonObject

     |   jsonArray

     ;

 jsonObject

     :   ('{' jsonField (',' jsonField)* '}'

             |   '{' '}' // empty object

         )

     ;

 jsonArray

     :   '['list ']'

     |   '[' ']' // empty array

     ;

 jsonField:   id ':' expression;

 numericLiteral: integerCypher | decimalCypher | doubleCypher ;

 integerCypher   :   ('+'| '-')? INTEGER ;

 decimalCypher   :   ('+'| '-')? DECIMAL ;

 doubleCypher   :   ('+'| '-')? DOUBLE ;

 parameterPath: PARAMETER ('.' id )*;

 labelVar: ':' id ;

 id: ID | MATCH | OPTIONAL | WITH | SKIP | LIMIT | UNION | RETURN | DETACH |REMOVE|SET|CALL|YIELD|CONSTRAINT|ON|ASSERT_|DROP|

     UNWIND|MERGE|INDEX|USING|SCAN|JOIN|FOREACH|CSV|IN|NOT|AND|OR|XOR|CASE|WHEN|ELSE|IS|UNIQUE|NULL|STARTS|START|ENDS|

     END|CONTAINS|THEN|ALL|ANY|NONE|SINGLE|COUNT|DISTINCT|SUM|MIN|MAX|AVG|WHERE|SELECT|AS|FROM|BY|ORDER|ASC|DESC|LOAD|

     CREATE|DELETE|EXISTS|HEADERS|FIELDTERMINATOR|PERIODIC|COMMIT|PROFILE|CYPHER|LENGTH|NODES|NODE|RELATIONSHIP|

     RELATIONSHIPS|EXTRACT|FILTER|ABS|RAND|ROUND|SQRT|SIGN|COS|TAN|COT|ASIN|ACOS|ATAN|ATAN2|HAVERSIN|SIN|DEGREES|RADIANS|

     PI|LOG10|LOG|EXP|EFUNC|COLLECT|PERCENTILEDISC|PERCENTILECONT|STDEVP|STDEV|TOSTRING|REPLACE|SUBSTRING|LEFT|RIGHT|TRIM|

     LTRIM|RTRIM|UPPER|LOWER|SPLIT|REVERSE|IDFUNC|RANGE|TYPE|SHORTESTPATH|RELS|ALLSHORTESTPATHS|TOLOWER|TOINT|LABELS|

     TIMESTAMP|SIZE|COALESCE|HEAD|LAST|STARTNODE|ENDNODE|PROPERTIES|TOFLOAT|KEYS|TAIL|REDUCE|FLOOR;

 PARAMETER: '{' WS* (PN_CHARS_U ( PN_CHARS_U | [0-9])*) WS* '}';

 LBRACE: '{';

 RBRACE: '}';

 MATCH: M A T C H;

 OPTIONAL: O P T I O N A L;

 WITH: W I T H;

 SKIP: S K I P;

 LIMIT: L I M I T;

 UNION: U N I O N;

 RETURN: R E T U R N;

 DETACH: D E T A C H;

 REMOVE: R E M O V E;

 SET: S E T;

 CALL: C A L L ;

 YIELD: Y I E L D;

 CONSTRAINT: C O N S T R A I N T;

 ON: O N;

 ASSERT_: A S S E R T;

 DROP : D R O P ;

 UNWIND :U N W I N D ;

 MERGE: M E R G E;

 INDEX: I N D E X;

 USING : U S I N G;

 SCAN:S C A N;

 JOIN:J O I N;

 FOREACH: F O R E A C H;

 CSV: C S V;

 IN:I N;

 NOT:N O T;

 AND: A N D ;

 OR: O R;

 XOR:X O R;

 CASE: C A S E;

 WHEN : W H E N;

 ELSE : E L S E;

 IS: I S;

 UNIQUE:U N I Q U E;

 NULL: N U L L ;

 STARTS: S T A R T S;

 START: S T A R T;

 ENDS: E N D S;

 END: E N D;

 CONTAINS: C O N T A I N S;

 THEN: T H E N;

 ALL : A L L;

 ANY: A N Y ;

 NONE: N O N E;

 SINGLE: S I N G L E;

 BOOLEAN : BOOL_VAL_TRUE | BOOL_VAL_FALSE;

 COUNT : C O U N T;

 DISTINCT : D I S T I N C T;

 SUM : S U M;

 MIN : M I N;

 MAX : M A X;

 AVG : A V G;

 WHERE: W H E R E;

 SELECT:S E L E C T;

 AS:A S;

 FROM:F R O M;

 BY:B Y;

 ORDER:O R D E R;

 ASC:A S C;

 DESC:D E S C;

 LOAD:L O A D;

 CREATE:C R E A T E;

 DELETE:D E L E T E;

 EXISTS:E X I S T S;

 HEADERS:H E A D E R S;

 FIELDTERMINATOR:F I E L D T E R M I N A T O R;

 PERIODIC:P E R I O D I C;

 COMMIT: C O M M I T;

 PROFILE:P R O F I L E;

 CYPHER:C Y P H E R ;

 LENGTH : L E N G T H;

 NODES : N O D E S;

 NODE:N O D E;

 RELATIONSHIP:R E L A T I O N S H I P;

 RELATIONSHIPS:R E L A T I O N S H I P S;

 EXTRACT:E X T R A C T;

 FILTER:F I L T E R;

 ABS:A B S;

 RAND:R A N D;

 ROUND:R O U N D;

 SQRT:S Q R T;

 SIGN:S I G N;

 COS:C O S;

 TAN:T A N;

 COT:C O T;

 ASIN:A S I N;

 ACOS:A C O S;

 ATAN:A T A N;

 ATAN2:A T A N '2';

 HAVERSIN:H A V E R S I N;

 SIN:S I N;

 DEGREES:D E G R E E S;

 RADIANS:R A D I A N S;

 PI:P I;

 LOG10:L O G '10';

 LOG:L O G;

 EXP:E X P;

 EFUNC:E;

 COLLECT:C O L L E C T;

 PERCENTILEDISC:P E R C E N T I L E D I S C;

 PERCENTILECONT:P E R C E N T I L E C O N T;

 STDEVP:S T D E V P;

 STDEV:S T D E V;

 TOSTRING:T O S T R I N G;

 REPLACE:R E P L A C E;

 SUBSTRING:S U B S T R I N G;

 LEFT:L E F T;

 RIGHT:R I G H T;

 TRIM:T R I M;

 LTRIM:L T R I M;

 RTRIM:R T R I M;

 UPPER:U P P E R;

 LOWER:L O W E R;

 SPLIT:S P L I T;

 REVERSE:R E V E R S E;

 IDFUNC:I D;

 RANGE: R A N G E;

 TYPE: T Y P E;

 SHORTESTPATH: S H O R T E S T P A T H;

 RELS:R E L S;

 ALLSHORTESTPATHS:A L L S H O R T E S T P A T H S;

 TOLOWER:T O L O W E R ;

 TOINT: T O I N T ;

 LABELS:L A B E L S;

 TIMESTAMP:T I M E S T A M P;

 SIZE:S I Z E;

 COALESCE:C O A L E S C E;

 HEAD: H E A D;

 LAST:L A S T;

 STARTNODE: S T A R T N O D E;

 ENDNODE:E N D N O D E;

 PROPERTIES:P R O P E R T I E S;

 TOFLOAT:T O F L O A T;

 KEYS:K E Y S;

 TAIL:T A I L;

 REDUCE:R E D U C E;

 FLOOR:F L O O R;

 EQUAL_REGUALR:'=~';

 ADDEQUAL: '+=';

 NOT_EQUAL:'<>';

 LT_EQUAL:'<=';

 GT_EQUAL:'>=';

 DOUBLEDOT: '..';

 ARROWAHEAD :'->';

 ARROWBACK:'<-';

 LT:'<';

 GT:'>';

 EQUAL:'=';

 NEGATE:'!';

 DOT:'.';

 MULIT:'*';

 ADD :'+';

 SUBTRACTION:'-';

 DIVISION:'/';

 STRING: STRING_VAL1 | STRING_VAL2;

 INTEGER   :   [0-9]+ ;

 DECIMAL   :   [0-9]* '.' [0-9]+ ;

 DOUBLE   :   [0-9]+ '.' [0-9]+ EXPONENT | '.' ([0-9])+ EXPONENT | ([0-9])+ EXPONENT ;

 NIL   :   '(' ')' ;

 WS   :   ('\u0020' | '\u0009' | '\u000D' | '\u000A') {skip();} ;

 ANON   :   '[' ']' ;

 ID: (PN_CHARS_U ( PN_CHARS_U | [0-9])*) | ('`' (ESC | ~[`\\])* '`');

 fragment STRING_VAL1   :   '\'' (ESC | ~['\\])* '\'' ;

 fragment STRING_VAL2   :   '\"' (ESC | ~["\\])* '\"' ;

 fragment BOOL_VAL_TRUE:'true';

 fragment BOOL_VAL_FALSE:'false';

 fragment ESC :   '\\' (['\\/bfnrt]);

 fragment EXPONENT   :   'e' [+-]? [0-9]+ ;

 fragment ECHAR   :   '\\' [tbnrf\\"'] ;

 fragment PN_CHARS_BASE   :   (A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z) | [\u00C0-\u00D6] | [\u00D8-\u00F6] | [\u00F8-\u02FF] | [\u0370-\u037D] | [\u037F-\u1FFF] | [\u200C-\u200D] | [\u2070-\u218F] | [\u2C00-\u2FEF] | [\u3001-\uD7FF] | [\uF900-\uFDCF] | [\uFDF0-\uFFFD];// | [\u10000-\uEFFFF] ;

 fragment PN_CHARS_U   :   PN_CHARS_BASE | '_' ;

 fragment PN_CHARS   :   PN_CHARS_U | '-' | [0-9] | '\u00B7' | [\u0300-\u036F] | [\u203F-\u2040] ;

 fragment A:[aA];

 fragment B:[bB];

 fragment C:[cC];

 fragment D:[dD];

 fragment E:[eE];

 fragment F:[fF];

 fragment G:[gG];

 fragment H:[hH];

 fragment I:[iI];

 fragment J:[jJ];

 fragment K:[kK];

 fragment L:[lL];

 fragment M:[mM];

 fragment N:[nN];

 fragment O:[oO];

 fragment P:[pP];

 fragment Q:[qQ];

 fragment R:[rR];

 fragment S:[sS];

 fragment T:[tT];

 fragment U:[uU];

 fragment V:[vV];

 fragment W:[wW];

 fragment X:[xX];

 fragment Y:[yY];

 fragment Z:[zZ];

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