Created
May 18, 2012 11:41
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JSON::Tiny grammar -- parsefail when doing % \,
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use v6; | |
grammar JSON::Tiny::Grammar; | |
rule TOP { ^[ <object> | <array> ]$ } | |
rule object { '{' ~ '}' <pairlist> } | |
rule pairlist { <pair>* % \, } | |
rule pair { <string> ':' <value> } | |
rule array { '[' ~ ']' <arraylist> } | |
rule arraylist { <value>* % \, } | |
proto token value {*}; | |
token value:sym<number> { | |
'-'? | |
[ 0 | <[1..9]> <[0..9]>* ] | |
[ \. <[0..9]>+ ]? | |
[ <[eE]> [\+|\-]? <[0..9]>+ ]? | |
} | |
token value:sym<true> { <sym> }; | |
token value:sym<false> { <sym> }; | |
token value:sym<null> { <sym> }; | |
token value:sym<object> { <object> }; | |
token value:sym<array> { <array> }; | |
token value:sym<string> { <string> } | |
token string { | |
\" ~ \" ( <str> | \\ <str_escape> )* | |
} | |
token str { | |
<-["\\\t\n]>+ | |
} | |
token str_escape { | |
<["\\/bfnrt]> | u <xdigit>**4 | |
} | |
say so JSON::Tiny::Grammar.parse('[ "a", "b" ]'); |
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