96 lines
2.4 KiB
Python
96 lines
2.4 KiB
Python
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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import Image
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from StringIO import StringIO
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import re
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import stdnum.isbn
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import ox
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def valid_olid(id):
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return id.startswith('OL') and id.endswith('M')
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def get_positions(ids, pos):
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'''
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>>> get_positions([1,2,3,4], [2,4])
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{2: 1, 4: 3}
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'''
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positions = {}
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for i in pos:
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try:
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positions[i] = ids.index(i)
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except:
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pass
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return positions
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def get_by_key(objects, key, value):
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obj = filter(lambda o: o.get(key) == value, objects)
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return obj and obj[0] or None
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def get_by_id(objects, id):
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return get_by_key(objects, 'id', id)
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def resize_image(data, width=None, size=None):
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source = Image.open(StringIO(data)).convert('RGB')
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source_width = source.size[0]
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source_height = source.size[1]
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if size:
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if source_width > source_height:
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width = size
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height = int(width / (float(source_width) / source_height))
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height = height - height % 2
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else:
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height = size
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width = int(height * (float(source_width) / source_height))
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width = width - width % 2
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else:
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height = int(width / (float(source_width) / source_height))
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height = height - height % 2
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width = max(width, 1)
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height = max(height, 1)
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if width < source_width:
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resize_method = Image.ANTIALIAS
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else:
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resize_method = Image.BICUBIC
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output = source.resize((width, height), resize_method)
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o = StringIO()
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output.save(o, format='jpeg')
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data = o.getvalue()
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o.close()
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return data
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def sort_title(title):
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title = title.replace(u'Æ', 'Ae')
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if isinstance(title, str):
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title = unicode(title)
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title = ox.sort_string(title)
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#title
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title = re.sub(u'[\'!¿¡,\.;\-"\:\*\[\]]', '', title)
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return title.strip()
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def normalize_isbn(value):
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return ''.join([s for s in value if s.isdigit() or s == 'X'])
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def find_isbns(text):
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matches = re.compile('\d[\d\-X\ ]+').findall(text)
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matches = [normalize_isbn(value) for value in matches]
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return [isbn for isbn in matches if stdnum.isbn.is_valid(isbn)
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and len(isbn) in (10, 13)
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and isbn not in (
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'0' * 10,
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'0' * 13,
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)]
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def get_position_by_id(list, key):
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for i in range(0, len(list)):
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if list[i]['id'] == key:
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return i
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return -1
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