feat: counsel-jq works equally for JSON and YAML

README.org

@@ -1,15 +1,17 @@
 * counsel-jq
 
+** Live queries against JSON and YAML data
+
 [[https://melpa.org/#/counsel-jq][file:https://melpa.org/packages/counsel-jq-badge.svg]]
 
-TL;DR: If you're a fan of [[https://stedolan.github.io/jq/][jq]] and you're using Emacs
+TL;DR: If you're a fan of [[https://stedolan.github.io/jq/][jq]] or [[https://github.com/mikefarah/yq][yq]] and you're using Emacs
 [[https://github.com/abo-abo/swiper][Ivy/Swiper/Counsel]], then this package is for you.
 
-Longer version: If you are working with complex nested JSON
-structures, you are probably familiar with [[https://stedolan.github.io/jq/][jq]] which is like sed for
-JSON data and great at what it does. However, being a command-line
-tool like sed, the feedback for writing queries and seeing their
-results is a discrete process and not live.
+Longer version: If you are working with complex nested JSON (or YAML)
+structures, you are probably familiar with [[https://stedolan.github.io/jq/][jq]] (or [[https://github.com/mikefarah/yq][yq]]) which is like
+sed for JSON data and great at what it does. However, being a
+command-line tool like sed, the feedback for writing queries and
+seeing their results is a discrete process and not live.
 
 #+begin_quote
 Cool. That might even be a feature that would draw in new Emacs users!
@@ -22,20 +24,27 @@ modern completion frameworks like [[https://github.com/abo-abo/swiper][Ivy]], th
 inputs, as well.
 
 counsel-jq is a package with which you can quickly test queries and
-traverse a complex JSON structure whilst having live feedback. Just
-call =M-x counsel-jq= in a buffer containing JSON, then start writing
-your =jq= query string and see the output appear live in the message
-area. Whenever you're happy, hit =RET= and the results will be
-displayed to you in the buffer =*jq-json*=.
+traverse a complex JSON and YAML structure whilst having live
+feedback. Just call =M-x counsel-jq= in a buffer containing JSON or
+YAML, then start writing your =jq= or =yq= query string and see the
+output appear live in the message area. Whenever you're happy, hit
+=RET= and the results will be displayed to you in the buffer
+=*jq-json*=.
 
 Demo:
 
 [[file:images/demo-counsel-jq.gif][./images/demo-counsel-jq.gif]]
 
 ** Configuration
 
-By default, the resulting =*jq-json*= buffer will have the major mode
-=js-mode=, but that can be customized with the
+To define whether you want to use =yq= over =jq= as processing tool,
+call =M-x customize= and set =counsel-jq-command= to =yq=.
+
+In the same manner you can define the name of the results buffer by
+customizing the =counsel-jq-buffer= variable.
+
+Lastly, by default, the results buffer =*jq-json*= buffer will have
+the major mode =js-mode=, but that can be customized with the
 =counsel-jq-json-buffer-mode= variable if you prefer =json-mode=,
 =rsjx-mode= or any other mode.
 

counsel-jq.el

@@ -1,5 +1,5 @@
 ;;; counsel-jq.el --- Live preview of "jq" queries using counsel -*- lexical-binding: t -*-
-;;; Version: 1.0.1
+;;; Version: 1.1.0
 ;;; Author: Alain M. Lafon <alain@200ok.ch)
 ;;; Package-Requires: ((swiper "0.12.0") (ivy "0.12.0") (emacs "24.1"))
 ;;; Keywords: convenience, data, matching
@@ -16,10 +16,10 @@
   :require 'counsel-jq
   :group 'counsel-jq)
 
-(defvar counsel-jq-command "jq"
+(defcustom counsel-jq-command "jq"
   "Command for `counsel-jq'.")
 
-(defvar counsel-jq-buffer "*jq-json*"
+(defcustom counsel-jq-buffer "*jq-json*"
   "Buffer for the `counsel-jq' query results.")
 
 (defun counsel-jq-json (&optional query)