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fiql

0.1.1
0.1.1

The Feed Item Query Language, implemented in Elixir. https://tools.ietf.org/html/draft-nottingham-atompub-fiql-00

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fiql src fiql_lexer.xrl
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src/fiql_lexer.xrl 

Definitions.



SELECTOR		= ([a-zA-Z0-9]|[_-]|(:))*



VALUE			= "([^"\\]|\\.)*"



LEFT_PARENT		= \(



RIGHT_PARENT	= \)



OP_OR			= \,



OP_AND			= \;



LOOKUP_EQ		= (==)



LOOKUP_NEQ		= (!=)



LOOKUP_LT		= (=lt=)



LOOKUP_LE		= (=le=)



LOOKUP_GT		= (=gt=)



LOOKUP_GE		= (=ge=)



WHITESPACE 		= [\s\t\n\r]





Rules.



{LEFT_PARENT}	: {token, {left_parent, TokenLine, TokenChars}}.



{RIGHT_PARENT}	: {token, {right_parent, TokenLine, TokenChars}}.



{OP_OR}			: {token, {op_or, TokenLine, TokenChars}}.



{OP_AND}		: {token, {op_and, TokenLine, TokenChars}}.



{LOOKUP_EQ}		: {token, {lookup_eq, TokenLine, TokenChars}}.



{LOOKUP_NEQ}	: {token, {lookup_neq, TokenLine, TokenChars}}.



{LOOKUP_LT}		: {token, {lookup_lt, TokenLine, TokenChars}}.



{LOOKUP_LE}		: {token, {lookup_le, TokenLine, TokenChars}}.



{LOOKUP_GT}		: {token, {lookup_gt, TokenLine, TokenChars}}.



{LOOKUP_GE}		: {token, {lookup_ge, TokenLine, TokenChars}}.



{SELECTOR}+		: {token, {selector, TokenLine, TokenChars}}.



{VALUE}+		: {token, {value, TokenLine, TokenChars}}.



{WHITESPACE}+ 	: skip_token.





Erlang code.