epicurious.py

#!/usr/bin/env python

"""
epicurious.py

This module inherits from RecipeParser, and provides an implementation
for parsing recipes from the epicurious.com site.

"""

import re

from parser import RecipeParser


class Epicurious(RecipeParser):
    # define some patterns to match/filter
    badTag = re.compile('Bon App\u00e9tit', re.I)

    def getTitle(self):
        """The title format is:

        <title>[Recipe] recipe | Epicurious.com</title>

        we want just 'Recipe'
        """
        return u' '.join(self.tree.xpath('//title')[0].text.split('|')[0].strip().split()[:-1])

    def getImage(self):
        """The image format is:

        <meta property="og:image" content="IMG_URL">

        we want just 'IMG_URL'
        """
        return self.tree.xpath('//meta[@property="og:image"]')[0].get('content')

    def getIngredients(self):
        """Return a list or a map of the recipe ingredients"""
        data = []
        for node in self.tree.xpath('//li[@itemprop="ingredients"]'):
            data.append(''.join(node.xpath('descendant-or-self::text()')).strip())
        return data

    def getDirections(self):
        """Return a list or a map of the preparation instructions"""
        data = []
        for node in self.tree.xpath('//li[@class="preparation-step"]'):
            data.append(''.join(node.xpath('descendant-or-self::text()')).strip())
        return data

    def getTags(self):
        """Return a list of tags for this recipe"""
        data = []
        for node in self.tree.xpath('//*[@itemprop="recipeCategory"]'):
            data.append(u''.join(node.xpath('descendant-or-self::text()')).strip())
        return list(filter(lambda x: self.badTag.search(x) is None, data))

    def getOtherRecipeLinks(self):
        """Return a list of other recipes found in the page"""
        data = []
        for link in self.tree.xpath('//div[contains(@class,"recipes")]/ul[contains(@class,"content")]/*/a'):
            if 'href' in link.keys():
                l = 'http://www.epicurious.com' + link.get('href')
                if l not in data:
                    data.append(l)
        return data