Jonathan
JSON encoder and decoder.
It's faster than jsown - high performance Common Lisp json parser.
See Document.
This HTML is generated by Codex.
Usage
(to-json '(:name "Common Lisp" :born 1984 :impls (SBCL KCL)))
;; => "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
(to-json '(:name "Common Lisp" :born 1984 :impls (SBCL KCL))
:octets t)
;; => #(123 34 78 65 77 69 34 58 34 67 111 109 109 111 110 32 76 ...)
(to-json '((:name . "Common Lisp") (:born . 1984) (:impls SBCL KCL))
:from :alist)
;; => "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
(to-json '(:obj (:name . "Common Lisp") (:born . 1984) (:impls SBCL KCL))
:from :jsown)
;; => "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
(let ((encoder (compile-encoder (:from :alist) (name)
`(("name" . ,name)))))
(funcall encoder "Rudolph"))
;; => "{\"name\":\"Rudolph\"}"
(parse "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}")
;; => (:NAME "Common Lisp" :BORN 1984 :IMPLS ("SBCL" "CCL" "KCL"))
(parse "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
:as :alist)
;; => (("NAME" . "Common Lisp") ("BORN" . 1984) ("IMPLS" "SBCL" "CCL" "KCL"))
(parse "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
:as :jsown)
;; => (:obj ("NAME" . "Common Lisp") ("BORN" . 1984) ("IMPLS" "SBCL" "CCL" "KCL"))
(parse "{\"NAME\":\"Common Lisp\",\"BORN\":1984,\"IMPLS\":[\"SBCL\",\"KCL\"]}"
:as :hash-table)
;; => #<HASH-TABLE :TEST EQUAL :COUNT 3>
Installasion
(ql:quickload :jonathan)
to-json
- can encode Object into JSON format.
- Restricted Property List. (
:from :plist
) - Association List. (
:from :alist
) - Jsown Object. (
:from :jsown
)
- Restricted Property List. (
- can return not only string but also octets.
- can be compiled by compiler-macro.
;; Restricted Property List Samples
(to-json '(:name :age :born :impls))
;; => "{\"NAME\":\"AGE\",\"BORN\":\"IMPLS\"}"
;; not "[\"NAME\",\"AGE\",\"BORN\",\"IMPLS\"]"
(to-json '(:name "Common Lisp" :born))
;; => "{\"NAME\":\"Common Lisp\",\"BORN\":[]}"
- is customizable by
%to-json
,%write-char
and%write-string
.
(defclass user ()
((id :type integer :initarg :id)
(name :type string :initarg :name)))
(defmethod %to-json ((user user))
(with-object
(write-key-value "id" (slot-value user 'id))
(write-key-value "name" (slot-value user 'name))))
(to-json (make-instance 'user :id 1 :name "Rudolph"))
;; => "{\"id\":1,\"name\":\"Rudolph\"}"
(let ((post (compile-encoder () (text)
(list :|channel| "lisp-alien"
:|username| "alien-bot"
:|text| text
:|icon_url| "http://www.lisperati.com/lisplogo_warning2_256.png"))))
(time
(dotimes (_ 100000)
(funcall post "Post from Alien!"))))
;; => 0.095
(flet ((post (text)
(jonathan:to-json
(list :|channel| "lisp-alien"
:|username| "alien-bot"
:|text| text
:|icon_url| "http://www.lisperati.com/lisplogo_warning2_256.png"))))
(time
(dotimes (_ 100000)
(post "Post from Alien!"))))
;; => 0.095
(flet ((post (text)
(format nil "{\"channel\":\"lisp-alien\",\"username\":\"alien-bot\",\"text\":~s,\"icon_url\":\"http://www.lisperati.com/lisplogo_warning2_256.png\"}" text)))
(time
(dotimes (_ 100000)
(post "Post from Alien!"))))"\"}"))))
;; => 0.146
(flet ((post (text)
(jonathan:to-json
(list :|channel| "lisp-alien"
:|username| "alien-bot"
:|text| text
:|icon_url| "http://www.lisperati.com/lisplogo_warning2_256.png"))))
(time
(dotimes (_ 100000)
(post "Post from Alien!"))))
;; => 0.604 - without compiler-macro.
(flet ((post (text)
(jsown:to-json
`(:obj (:|channel| . "lisp-alien")
(:|username| . "alien-bot")
(:|text| . ,text)
(:|icon_url| . "http://www.lisperati.com/lisplogo_warning2_256.png")))))
(time
(dotimes (_ 100000)
(post "Post from Alien!"))))
;; => 1.117
parse
- can decode JSON format string into Object.
- Property List. (
:as :plist
) - Association List. (
:as :alist
) - Json Object. (
:as :jsown
) - Hash Table. (
:as :hash-table
)
- Property List. (
- can allow junked JSON format string (
:junk-allowed t
) - can customize
*null-value*
,*false-value*
and*empty-array-value*
. - can restrict keywords to read. (
:keywords-to-read
) - can normalize keywords. (
:keyword-normalizer
)- can not normalize keywords in nested objects.
- can ignore keywords when normalizer returns NIL.
- can unescape unicode escape sequences. (
:unescape-unicode-escape-sequence
)
(parse "{\"key\":\"value\"}")
;; => (:|key| "value")
(parse "{\"key\":\"value\"")
;; => raise <jonathan-unexpected-eof>.
(parse "{\"key\":\"value\"" :junk-allowed t)
;; => (:|key| "value")
(let ((*null-value* :null)
(*false-value* :false)
(*empty-array-value* :[]))
(parse "{\"null\":null,\"false\":false,\"empty\":[]}"))
;; => (:|null| :NULL :|false| :FALSE :|empty| :[])
(parse "{\"key1\":\"value1\",\"key2\":\"value2\"}" :keywords-to-read '("key1"))
;; => (:|key1| "value1")
(flet ((normalizer (key)
(with-vector-parsing (key)
(match-i-case
("key1" (return-from normalizer "other-key1"))
("key2" (return-from normalizer "other-key2"))
(otherwise (return-from normalizer nil))))))
(parse "{\"KEY1\":{\"key2\":\"value2\"},\"key3\":\"value3\"}"
:keyword-normalizer #'normalizer)
;; => (:|other-key1| (:|key2| "value2"))
(parse "{\"KEY1\":{\"key2\":\"value2\"},\"key3\":\"value3\"}"
:keyword-normalizer #'normalizer
:normalize-all t))
;; => (:|other-key1| (:|other-key2| "value2"))
(parse "\"\\u30b8\\u30e7\\u30ca\\u30b5\\u30f3\"")
;; => "γΈγ§γγ΅γ³"
(parse "\"\\uD840\\uDC0B\"")
;; => "π "
(parse "\"\\u30b8\\u30e7\\u30ca\\u30b5\\u30f3\""
:unescape-unicode-escape-sequence nil)
;; => "\u30b8\u30e7\u30ca\u30b5\u30f3"
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jonathan:parse s :as :alist))))
;; => 0.174
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jonathan:parse s :as :jsown))))
;; => 0.181
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jsown:parse s))))
;; => 0.204
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jonathan:parse s :as :alist :keywords-to-read '("key1")))))
;; => 0.065
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jonathan:parse s :as :jsown :keywords-to-read '("key1")))))
;; => 0.069
(let ((s "{\"key1\":\"value\",\"key2\":1.1,\"key3\":[\"Hello\",1.2]}"))
(time
(dotimes (_ 100000)
(jsown:parse s "key1"))))
;; => 0.085
Helper
compile-encoder
- can compile encoder.
(compile-encoder () (name)
(list :name name))
;; => #<FUNCTION (LAMBDA (name))>
(funcall * "Rudolph")
;; => "{\"NAME\":\"Rudolph\"}"
(compile-encoder (:from :alist) (name)
`(("name" . ,name)))
;; => #<FUNCTION (LAMBDA (name))>
(funcall * "Rudolph")
;; => "{\"name\":\"Rudolph\"}"
(compile-encoder (:octets t) (name)
(list :name name))
;; => #<FUNCTION (LAMBDA (name))>
(funcall * "Rudolph")
;; => #(123 34 75 69 89 49 ...)
with-object
(defclass user ()
((id :initarg :id)
(name :initarg :name)))
(defmethod %to-json ((user user))
(with-object
(write-key "id")
(write-value (slot-value user 'id))
(write-key-value "name" (slot-value user 'name))))
(to-json (make-instance 'user :id 1 :name "Rudolph"))
;; => "{\"id\":1,\"name\":\"Rudolph\"}"
with-array
(defclass user ()
((id :initarg :id)
(name :initarg :name)))
(defmethod %to-json ((user user))
(with-array
(write-item "id")
(write-item (slot-value user 'id))
(write-item "name")
(write-item (slot-value user 'name))))
(to-json (make-instance 'user :id 1 :name "Rudolph"))
;; => "[\"id\",1,\"name\",\"Rudolph\"]"
with-output
(with-output-to-string (stream)
(with-output (stream)
(with-object
(write-key-value "key" "value"))))
;; => "{\"key\":\"value\"}"
with-output-to-string*
(with-output-to-string*
(with-object
(write-key-value "key" "value"))))
;; => "{\"key\":\"value\"}"
See Also
Author
- Rudolph-Miller
Copyright
Copyright (c) 2015 Rudolph-Miller