Ross Wolf
51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
?query: or_query
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?or_query: and_query (OR and_query)*
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?and_query: not_query (AND not_query)*
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?not_query: NOT? sub_query
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?sub_query: "(" or_query ")"
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| nested_query
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?nested_query: field ":" "{" or_query "}"
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| expression
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?expression: field_range_expression
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| field_value_expression
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| value_expression
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field_range_expression: field RANGE_OPERATOR literal
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field_value_expression: field ":" list_of_values
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?value_expression: value
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?list_of_values: "(" or_list_of_values ")"
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| value
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?or_list_of_values: and_list_of_values (OR and_list_of_values)*
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?and_list_of_values: not_list_of_values (AND not_list_of_values)*
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?not_list_of_values: NOT? list_of_values
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field: literal
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value: QUOTED_STRING
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| UNQUOTED_LITERAL
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literal: QUOTED_STRING
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| UNQUOTED_LITERAL
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RANGE_OPERATOR: "<="
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| ">="
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| "<"
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| ">"
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UNQUOTED_LITERAL: UNQUOTED_CHAR+
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UNQUOTED_CHAR: "\\" /[trn]/ // escaped whitespace
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| "\\" /[\\():<>"*{}]/ // escaped specials
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| "\\" (AND | OR | NOT) // escaped keywords
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| "*" // wildcard
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| /[^\\():<>"*{} \t\r\n]/ // anything else
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QUOTED_STRING: /"(\\[tnr"\\]|[^\r\n"])*"/
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OR.2: "or" | "OR"
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AND.2: "and" | "AND"
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NOT.2: "not" | "NOT"
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WHITESPACE: (" " | "\r" | "\n" | "\t" )+
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%ignore WHITESPACE |