| | T_NULL : 'null' ; |
| | |
| | -/* Define the symbols. */ |
| | +/* Define skippable tokens. */ |
| | +T_WS: [ \t\r\n]+ -> skip ; |
| | + |
| | +/* Define digits and numbers. */ |
| | +T_DIGIT: [0-9] ; |
| | +T_SIGN : '+' | '-' ; |
| | + |
| | +T_FLOAT : T_SIGN? (T_NUMBER | T_FRACTION) ; |
| | +T_NUMBER : T_DIGIT | T_DIGIT T_NUMBER ; |
| | +T_FRACTION: T_NUMBER? '.' T_NUMBER ; |
| | + |
| | +/* Define map symbols; exclude '>', which is defined as T_GT. */ |
| | T_POP : '^' ; |
| | T_GLOB : '.*' ; |
| | -T_MAP : '>' ; |
| | T_INNER: '+>' ; |
| | T_OUTER: '->' ; |
| | T_EOL : ',' ; |
| | T_WHERE: ';' ; |
| | |
| | -/* Define the table and path symbols. */ |
| | +/* Define table and path symbols. */ |
| | T_AT : '@' ; |
| | T_PERIOD: '.' ; |
| | T_SLASH : '/' ; |
| | |
| | -/* Define the identifier. */ |
| | +/* Define an identifier. */ |
| | T_ID: [A-Za-z0-9_]+ ; |
| | - |
| | -/* Define digits. */ |
| | -T_DIGIT: [0-9] ; |
| | - |
| | -/* Define skippable tokens. */ |
| | -T_WS: [ \t\r\n]+ -> skip ; |
| | |
| | -/* Define the WHERE clause comparitor operator tokens. */ |
| | -T_COMP_EQ : '=' ; |
| | -T_COMP_INEQ : '<>' ; |
| | -T_COMP_LT : '<' ; |
| | -T_COMP_GT : '>' ; |
| | -T_COMP_LTE : '<=' ; |
| | -T_COMP_GTE : '>=' ; |
| | +/* Define WHERE clause comparitor operator tokens. */ |
| | +T_EQ : '=' ; |
| | +T_INEQ : '<>' ; |
| | +T_LT : '<' ; |
| | +T_GT : '>' ; |
| | +T_LTE : '<=' ; |
| | +T_GTE : '>=' ; |
| | |
| | /* Define the WHERE clause logical operator tokens. */ |
 |
| | */ |
| | start : (root | module) T_EOL ; |
| | -root : T_ROOT T_MAP element ; |
| | +root : T_ROOT T_GT element ; |
| | module: T_MODULE T_ID ; |
| | |
| | statement: (pop | glob | map | include) T_EOL ; |
| | pop : T_POP ; |
| | glob : T_GLOB ; |
| | |
| | /* Map lines affect the tree depth differently. |
| | */ |
| | map : tableMap | columnMap | attributeMap | innerMap | outerMap ; |
| | -tableMap : table T_MAP path ; |
| | -columnMap : column T_MAP path ; |
| | -attributeMap: column T_MAP attribute ; |
| | +tableMap : table T_GT path ; |
| | +columnMap : column T_GT path ; |
| | +attributeMap: column T_GT attribute ; |
| | innerMap : tableColumn T_INNER tableColumn ; |
| | outerMap : tableColumn T_OUTER tableColumn ; |
|
| | path : element | elementPath; |
| | |
| | -/* Define the WHERE clause. |
| | - */ |
| | +/* Define the WHERE clause. */ |
| | where : T_WHERE expression? ; |
| | |
| | -exprParen : T_EXPR_OPEN expression T_EXPR_CLOSE ; |
| | -expression : tableColumn exprRelational exprValue ; |
| | +expression : |
| | + tableColumn exprRelational exprValueOrSet |
| | + | tableColumn exprEquality exprValueOrSet |
| | + | T_EXPR_OPEN expression T_EXPR_CLOSE |
| | + | expression (T_LOGIC_AND | T_LOGIC_OR) expression ; |
| | |
| | -exprRelational: T_COMP_LT | T_COMP_GT | T_COMP_LTE | T_COMP_GTE ; |
| | -exprEquality : T_COMP_EQ | T_COMP_INEQ ; |
| | -exprLogicAnd : T_LOGIC_AND ; |
| | -exprLogicOr : T_LOGIC_OR ; |
| | -exprParameter : T_EXPR_PARAMETER T_ID ; |
| | +exprRelational: T_LT | T_GT | T_LTE | T_GTE ; |
| | +exprEquality : T_EQ | T_INEQ ; |
| | |
| | -exprSet : T_EXPR_SET_OPEN exprValues T_EXPR_SET_CLOSE ; |
| | -exprValues : exprValue (',' exprValue)* ; |
| | +exprValueOrSet: exprValue | exprSet ; |
| | exprValue : exprParameter | literal ; |
| | +exprList : exprValue (',' exprValue)* ; |
| | +exprSet : T_EXPR_SET_OPEN exprList T_EXPR_SET_CLOSE ; |
| | |
| | -literal : literalString | literalNumber | literalNull ; |
| | +exprParameter : T_EXPR_PARAMETER T_ID ; |
| | +literal : literalNull | literalString | literalFloat ; |
| | |
| | -literalString : '\'' (~'\'' | '\'\'')* '\'' ; |
| | -literalNumber : (T_DIGIT)* ('.' T_DIGIT+)*; |
| | literalNull : T_NULL ; |
| | - |
| | -/* |
| | -WEq. Where : TableColumn ComparatorOperatorEquality AllValues ; |
| | -WParen. Where : "(" Where ")" ; |
| | - |
| | -*/ |
| | +literalString : '\'' (~'\'' | '\'\'')* '\'' ; |
| | +literalFloat : T_FLOAT ; |
| | |
| | |