68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
package json
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import (
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"errors"
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. "github.com/vektah/goparsify"
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)
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var (
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value Parser
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_array = Map(And("[", Kleene(&value, ","), "]"), func(n *Node) *Node {
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ret := []interface{}{}
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for _, child := range n.Children[1].Children {
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ret = append(ret, child.Result)
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}
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return &Node{Result: ret}
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})
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properties = Kleene(And(String('"'), ":", &value), ",")
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_object = Map(And("{", properties, "}"), func(n *Node) *Node {
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ret := map[string]interface{}{}
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for _, prop := range n.Children[1].Children {
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ret[prop.Children[0].Token] = prop.Children[2].Result
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}
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return &Node{Result: ret}
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})
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_null = Map("null", func(n *Node) *Node {
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return &Node{Result: nil}
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})
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_true = Map("true", func(n *Node) *Node {
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return &Node{Result: true}
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})
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_false = Map("false", func(n *Node) *Node {
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return &Node{Result: false}
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})
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_string = Map(String('"'), func(n *Node) *Node {
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return &Node{Result: n.Token}
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})
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Y = Map(&value, func(n *Node) *Node {
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return &Node{Result: n.Result}
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})
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)
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func init() {
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value = Any(_null, _true, _false, _string, _array, _object)
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}
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func Unmarshal(input string) (interface{}, error) {
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result, remaining, err := ParseString(Y, input)
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if err != nil {
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return result, err
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}
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if remaining != "" {
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return result, errors.New("left unparsed: " + remaining)
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}
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return result, err
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}
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