A Hy beautifier / code formatter / pretty-printer.
Probably compatible with Hy 1.0.0 and later.
$ pip install -U beautifhyIf you want syntax highlighting available (which requires pygments), do instead
$ pip install -U beautifhy[hylight]From the command line, to pretty-print the file core.hy:
$ beautifhy core.hygives the output
(import toolz [first second last])
;; * Utility things
;; -----------------------------------------
(defmacro defmethod [#* args]
"Define a multimethod (using multimethod.multimethod).
For example, the Hy code
`(defmethod f [#^ int x #^ float y]
(// x (int y)))`
is equivalent to the following Python code:
`@multimethod
def f(x: int, y: float):
return await x // int(y)`
You can also define an asynchronous multimethod:
`(defmethod :async f [#* args #** kwargs]
(await some-async-function #* args #** kwargs))`
"
(if (= :async (first args))
(let [f (second args) body (cut args 2 None)]
`(defn :async [hy.I.multimethod.multimethod] ~f ~@body))
(let [f (first args) body (cut args 1 None)]
`(defn [hy.I.multimethod.multimethod] ~f ~@body))))
(defn slurp [fname #** kwargs]
"Read a file and return as a string.
kwargs can include mode, encoding and buffering, and will be passed
to open()."
(let [f (if (:encoding kwargs None) hy.I.codecs.open open)]
(with [o (f fname #** kwargs)]
(o.read))))
(defmacro rest [xs]
"A slice of all but the first element of a sequence."
`(cut ~xs 1 None))To apply syntax highlighting (no pretty-printing), do
$ hylight core.hyYou can use stdin and pipe by replacing the filename with -:
$ beautifhy core.hy | hylight -which will pretty-print core.hy and then syntax highlight the output.