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;;; wttrin.el --- Emacs frontend for weather web service wttr.in
;; Copyright (C) 2016 Carl X. Su
;; Author: Carl X. Su <bcbcarl@gmail.com>
;; Version: 0.1.0
;; Package-Requires: ((emacs "24.4") (xterm-color "20150823.646"))
;; Keywords: comm, weather, wttrin
;; URL: https://github.com/bcbcarl/emacs-wttrin
;;; Commentary:
;; Provides the weather information from wttr.in based on your query condition.
;;; Code:
(require 'url)
(require 'xterm-color)
(defgroup wttrin nil
"Emacs frontend for weather web service wttr.in."
:prefix "wttrin-"
:group 'comm)
(defcustom wttrin-query "Taipei"
"Specify a query condition to get the weather information."
:group 'wttrin
:type 'string)
(defun wttrin-fetch (query)
"Get the weather information based on your QUERY."
(let ((url-request-extra-headers '(("User-Agent" . "curl"))))
(with-current-buffer
(url-retrieve-synchronously
(concat "http://wttr.in/" query)
(lambda (status) (switch-to-buffer (current-buffer))))
(decode-coding-string (buffer-string) 'utf-8))))
(defun wttrin-exec ()
"Display weather information."
(interactive)
(let ((buf (get-buffer-create (format "*wttr.in - %s*" wttrin-query))))
(switch-to-buffer buf))
(insert (xterm-color-filter (wttrin-fetch wttrin-query)))
(goto-char (point-min))
(re-search-forward "^$")
(delete-region (point-min) (1+ (point)))
(setq buffer-read-only t))
(provide 'wttrin)
;;; wttrin.el ends here
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