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cardinfo.py
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cardinfo.py
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# cardinfo.py
import re
import string
#
import special
import symbols
# stupid prefixes used by Gatherer HTML
PREFIX1 = "ctl00_ctl00_ctl00_MainContent_SubContent_SubContentHeader_"
PREFIX2 = "ctl00_ctl00_ctl00_MainContent_SubContent_SubContent_"
# replace high-ASCII characters with their low-ASCII equivalents
characters = [
# multicharacter exprs first
('\xe2\x80\x93', '-'),
('\xe2\x80\x94', '--'),
('\xe2\x80\x98', "'"),
('\xe2\x80\x99', "'"),
('\xe2\x80\xa8', " "),
('\xe2\x84\xa2', '(TM)'),
('\xc2\xa0', ' '),
('\xc2\xa1', '!'),
('\xc2\xb2', '2'), # squared symbol
('\xc2\xba', 'o'), # degree symbol; no equivalent in low ASCII :-/
('\xc3\x84', 'A'),
('\xc3\x86', 'Ae'),
('\xc3\xa1', 'a'),
('\xc3\xa2', 'a'),
('\xc3\xa4', 'a'),
('\xc3\xa6', 'ae'),
('\xc3\xa8', 'e'),
('\xc3\xa9', 'e'),
('\xc3\xa0', 'a'),
('\xc3\xaa', 'e'),
('\xc3\xad', 'i'),
('\xc3\xb6', 'o'), # o-umlaut
('\xc3\xba', 'u'),
('\xc3\xbb', 'u'),
('\xc3\xbc', 'u'),
('\xc2\xae', '(R)'),
('\x80', '-'),
('\x94', '-'),
('\x98', "'"),
('\xe2', '-'),
# HTML entities work as well
(" ", " "),
]
class CardInfoGatherer:
def __init__(self, soup, id):
self.soup = soup
self.PREFIX1 = PREFIX1
self.PREFIX2 = PREFIX2
self.id = id # multiverseid
if self.id in special.double_faced_cards.keys():
self.PREFIX1 += 'ctl05_'
self.PREFIX2 += 'ctl05_'
elif self.id in special.double_faced_cards.values():
self.PREFIX1 += 'ctl06_'
self.PREFIX2 += 'ctl06_'
def name(self):
n = self.soup.find('div', id=self.PREFIX2+"nameRow")
o = n.find('div', {'class': 'value'})
return gather_contents(o)
def manacost(self):
syms = []
n = self.soup.find('div', id=self.PREFIX2+"manaRow")
if n is None: return []
for o in n.findAll('img'):
sym = o['alt'].lower().strip()
sym = symbols.translate(sym)
syms.append(sym)
return map(str, syms)
def type(self):
n = self.soup.find('div', id=self.PREFIX2+"typeRow")
o = n.find('div', {'class': 'value'})
return gather_contents(o)
def rules(self):
n = self.soup.find('div', id=self.PREFIX2+"textRow")
if n is None: return "" # always create a node for rules, even if empty
parts = [gather_contents(o)
for o in n.findAll('div', {'class': 'cardtextbox'})]
s = string.join(parts, "\n")
return replace_bogus_mana(s)
def flavor_text(self):
# XXX much the same as rules_printed()... refactor
n = self.soup.find('div', id=self.PREFIX2+"FlavorText")
if n is None: return None
parts = [gather_contents(o)
for o in n.findAll('div', {'class': 'cardtextbox'})]
return string.join(parts, "\n")
def rarity(self):
n = self.soup.find('div', id=self.PREFIX2+"rarityRow")
o = n.find('div', {'class': 'value'})
rarity = gather_contents(o).lower().strip()
return symbols.rarities[rarity]
def number(self):
n = self.soup.find('div', id=self.PREFIX2+"numberRow")
if n is None: return None # older cards don't have a number
o = n.find('div', {'class': 'value'})
return gather_contents(o)
def artist(self):
n = self.soup.find('div', id=self.PREFIX2+"artistRow")
o = n.find('div', id=self.PREFIX2+"ArtistCredit")
return gather_contents(o)
def _power_toughness(self):
n = self.soup.find('div', id=self.PREFIX2+"ptRow")
if n is None: return None, None
o = n.find('div', {'class': 'value'})
s = gather_contents(o)
parts = s.split('/')
try:
return parts[0].strip(), parts[1].strip()
except IndexError:
return None, None # does not have valid power/toughness
# this happens for Planeswalkers
def power(self):
p, t = self._power_toughness()
return p
def toughness(self):
p, t = self._power_toughness()
return t
def loyalty(self):
n = self.soup.find('div', id=self.PREFIX2+"ptRow")
if n is None: return None
if "Loyalty:" not in gather_contents(n): return None # P/T
o = n.find('div', {'class': 'value'})
return gather_contents(o)
def gather_contents(soupnode):
""" Gather contents from a BeautifulSoup node, stripping HTML, replacing
symbols, etc. """
# replace images with text, e.g. {B}, {TAP}, etc.
for n in soupnode.findAll('img'):
symbol = n['alt'].lower().strip()
our_symbol = symbols.translate(symbol) # may raise KeyError
n.replaceWith("{" + our_symbol + "}")
s = string.join([str(x) for x in soupnode.contents], "").strip()
s = strip_html(s)
s = remove_html_entities(s)
return replace_chars(s)
def replace_chars(s):
""" Replace high ASCII characters with low ASCII equivalents (sort of)."""
for before, after in characters:
s = s.replace(before, after)
return s
re_html_tag = re.compile("<[^>]+>")
def strip_html(s):
return re_html_tag.sub("", s)
def remove_html_entities(s):
entities = [['<', '<'],
['>', '>'],
['&', '&']]
for before, after in entities:
s = s.replace(before, after)
return s
bogus_mana = [
('ooB', '{B}:'),
('ooG', '{G}:'),
('ooR', '{R}:'),
('ooU', '{U}:'),
('ooW', '{W}:'),
('ooX', '{X}:'),
('oocT', '{TAP}:'),
('oB', '{B}'),
('oG', '{G}'),
('oR', '{R}'),
('oU', '{U}'),
('oW', '{W}'),
('oX', '{X}'),
('ocT', '{TAP}'),
('(r/w)', '{RW}'), # Figure of Destiny [EVE]
('(w/b)', '{WB}'), # Stillmoon Cavalier [EVE]
('(g/w)', '{GW}'), # Rhys the Redeemed [SHM]
]
re_bogus_mana_number = re.compile("o(\d+)")
def replace_bogus_mana(s):
""" Some older rules text on Gatherer has bogus mana symbols, e.g. 'oB'
instead of just 'B' or '{B}'. Let's replace them. This is only
necessary for rules_printed. """
for before, after in bogus_mana:
s = s.replace(before, after)
s = re_bogus_mana_number.sub("{\\1}", s)
return s