feat: add hy support (#241)

Author: vhqr0

README.md

@@ -56,6 +56,7 @@ Supported languages
 * **Haskell** ([*brittany*](https://github.com/lspitzner/brittany), [*fourmolu*](https://github.com/fourmolu/fourmolu), [*hindent*](https://github.com/commercialhaskell/hindent), [*ormolu*](https://github.com/tweag/ormolu), [*stylish-haskell*](https://github.com/jaspervdj/stylish-haskell))
 * **HCL** ([*hclfmt*](https://github.com/hashicorp/hcl/tree/main/cmd/hclfmt))
 * **HTML/XHTML/XML** ([*tidy*](http://www.html-tidy.org/))
+* **Hy** (Emacs)
 * **Java** ([*clang-format*](https://clang.llvm.org/docs/ClangFormat.html), [*astyle*](http://astyle.sourceforge.net/))
 * **JavaScript/JSON/JSX** ([*prettier*](https://prettier.io/), [*standard*](https://standardjs.com/), [*prettierd*](https://github.com/fsouza/prettierd), [*deno*](https://deno.land/manual/tools/formatter))
 * **Jsonnet** ([*jsonnetfmt*](https://jsonnet.org/))

format-all.el

@@ -57,6 +57,7 @@
 ;; - Haskell (brittany, fourmolu, hindent, ormolu, stylish-haskell)
 ;; - HCL (hclfmt)
 ;; - HTML/XHTML/XML (tidy)
+;; - Hy (Emacs)
 ;; - Java (clang-format, astyle)
 ;; - JavaScript/JSON/JSX (prettier, standard, prettierd, deno)
 ;; - Jsonnet (jsonnetfmt)
@@ -157,6 +158,7 @@
     ("HTML" html-tidy)
     ("HTML+EEX" mix-format)
     ("HTML+ERB" erb-format)
+    ("Hy" emacs-hy)
     ("Java" clang-format)
     ("JavaScript" prettier)
     ("JSON" prettier)
@@ -898,6 +900,18 @@ Consult the existing formatters for examples of BODY."
         (lambda () (indent-region (car region) (cdr region)))
       (lambda () (indent-region (point-min) (point-max)))))))
 
+(define-format-all-formatter emacs-hy
+  (:executable)
+  (:install)
+  (:languages "Hy")
+  (:features region)
+  (:format
+   (format-all--buffer-native
+    'hy-mode
+    (if region
+        (lambda () (indent-region (car region) (cdr region)))
+      (lambda () (indent-region (point-min) (point-max)))))))
+
 (define-format-all-formatter erb-format
   (:executable "erb-format")
   (:install "gem install erb-formatter")