匹配 json

(?(DEFINE)
(?<number>-?(?=[1-9]|0(?!\d))\d+(\.\d+)?([eE][+-]?\d+)?)
(?<boolean>true|false|null)
(?<string>"([^"\n\r\t\\\\]*|\\\\["\\\\bfnrt\/]|\\\\u[0-9a-f]{4})*")
(?<array>\[(?:(?&json)(?:,(?&json))*)?\s*\])
(?<pair>\s*(?&string)\s*:(?&json))
(?<object>\{(?:(?&pair)(?:,(?&pair))*)?\s*\})
(?<json>\s*(?:(?&number)|(?&boolean)|(?&string)|(?&array)|(?&object))\s*)
)