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org-chef-saveur.el
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org-chef-saveur.el
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;;; org-chef-saveur.el --- Functions for fetching recipes from saveur.com. -*- lexical-binding: t; -*-
;; Copyright (C) 2018 Calvin Beck/Derek Ellis
;; Author: Calvin Beck <hobbes@ualberta.ca>/Derek Ellis <derek.ellis@gmail.com>
;; URL: https://github.com/Chobbes/org-chef
;; Created: 2018
;; Copyright 2018 Calvin Beck/Derek Ellis
;; Permission is hereby granted, free of charge, to any person
;; obtaining a copy of this software and associated documentation
;; files (the "Software"), to deal in the Software without
;; restriction, including without limitation the rights to use, copy,
;; modify, merge, publish, distribute, sublicense, and/or sell copies
;; of the Software, and to permit persons to whom the Software is
;; furnished to do so, subject to the following conditions:
;; The above copyright notice and this permission notice shall be
;; included in all copies or substantial portions of the Software.
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
;; BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
;; ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
;; CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
;; SOFTWARE.
;;; Commentary:
;; Functions for fetching information from saveur.com.
;;; Code:
(require 'org-chef-utils)
(require 'dom)
(defun org-chef-saveur-chomp (str)
"Chomp leading and tailing whitespace from STR."
(replace-regexp-in-string (rx (or (: bos (* (any " \t\n")))
(: (* (any " \t\n")) eos)))
""
str))
(defun org-chef-saveur-extract-name (dom)
"Get the name of a recipe from an saveur DOM."
(string-trim (dom-text (car (dom-by-class dom "page-title")))))
(defun org-chef-saveur-extract-ingredients (dom)
"Get the ingredients for a recipe from an saveur DOM."
(remove ""
(mapcar 'org-chef-saveur-chomp
(split-string
(replace-regexp-in-string " ⁄ " "/"
(string-join (mapcar #'dom-texts (dom-by-class dom "^ingredients$")))) "\n" ))))
(defun org-chef-saveur-extract-servings (dom)
"Get the number of servings for a recipe from an saveur DOM."
(replace-regexp-in-string "serves " ""
(dom-text (dom-by-tag (dom-by-class dom "yield") 'span))))
(defun org-chef-saveur-extract-prep-time (dom)
"Get the amount of prep-time for a recipe from an saveur DOM."
(org-chef-saveur-chomp
(dom-text (dom-by-class dom "^prep-time$"))))
(defun org-chef-saveur-extract-cook-time (dom)
"Get the amount of cook-time for a recipe from an saveur DOM."
(org-chef-saveur-chomp
(dom-text (dom-by-class dom "^cook-time$"))))
(defun org-chef-saveur-extract-ready-in (dom)
"Get the total amount of time for a recipe from an saveur DOM."
(string-trim (dom-texts (dom-by-class (cadr (dom-by-tag (dom-by-class dom "recipe-time-yield") 'li)) "recipe-yield-value"))))
(defun org-chef-saveur-extract-directions (dom)
"Get the directions for a recipe from an saveur DOM."
(remove ""
(mapcar 'org-chef-saveur-chomp
(split-string
(replace-regexp-in-string " ⁄ " "/"
(dom-texts
(dom-by-class dom "^instructions "))) "\n \n " ))))
(defun org-chef-saveur-from-dom (dom)
"Given an saveur.com DOM, retrieve the recipe information.
This returns an alist with the following keys:
- name
- ingredients
- servings
- prep-time
- cook-time
- ready-in
- directions"
(let* ((prep-time (org-chef-saveur-extract-prep-time dom))
(cook-time (org-chef-saveur-extract-cook-time dom))
(total-time (org-chef-saveur-extract-ready-in dom)))
`((ingredients . ,(org-chef-saveur-extract-ingredients dom))
(name . ,(org-chef-saveur-extract-name dom))
(servings . ,(org-chef-saveur-extract-servings dom))
(prep-time . ,prep-time)
(cook-time . ,cook-time)
(ready-in . ,total-time)
(directions . ,(org-chef-saveur-extract-directions dom)))))
(defun org-chef-saveur-fetch (url)
"Given an saveur.com URL, retrieve the recipe information.
This returns an alist with the following keys:
- name
- ingredients
- servings
- prep-time
- cook-time
- ready-in
- directions
- source-url"
(with-current-buffer (org-chef-url-retrieve-synchronously url)
(let ((dom (libxml-parse-html-region (point-min) (point-max))))
(cons `(source-url . ,url) (org-chef-saveur-from-dom dom)))))
(provide 'org-chef-saveur)
;;; org-chef-saveur.el ends here