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jqish

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Jq like thing for grabbing stuff out of json like objects

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jqish src jqish_parser.yrl
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src/jqish_parser.yrl 

Nonterminals elems elem.

Terminals '[' ']' '.' '|' '?' ':' int identifier iterator optional.

Rootsymbol elems.



elems -> '.' elem               : ['$2'].

elems -> '.' '[' elem ']'       : ['$3'].





elems -> '.' elem elems         : ['$2' | '$3'].

elems -> '.' '[' elem ']' elems : ['$3' | '$5'].



elem -> elem '?'    : {optional, '$1'}.

elem -> int ':' int : {slice, extract_integer('$1'), extract_integer('$3')}.



elem -> iterator   : iterator.

elem -> int        : extract_integer('$1').

elem -> identifier : extract_token('$1').





Erlang code.



extract_token({_Token, _Line, Value}) -> Value.



extract_integer({_Token, _Line, Value}) -> list_to_integer(Value).