def __init__(self):
family = Regex(r'([^%s]|(\\[%s]))*' %
(family_punc, family_punc)) \
.setParseAction(self._family)
size = Regex(r"([0-9]+\.?[0-9]*|\.[0-9]+)") \
.setParseAction(self._size)
name = Regex(r'[a-z]+') \
.setParseAction(self._name)
value = Regex(r'([^%s]|(\\[%s]))*' %
(value_punc, value_punc)) \
.setParseAction(self._value)
families = (family + ZeroOrMore(Literal(',') + family)).setParseAction(
self._families)
point_sizes = (size + ZeroOrMore(Literal(',') + size)).setParseAction(
self._point_sizes)
property = ((name + Suppress(Literal('=')) + value +
ZeroOrMore(Suppress(Literal(',')) + value))
| name).setParseAction(self._property)
pattern = (Optional(families) + Optional(Literal('-') + point_sizes) +
ZeroOrMore(Literal(':') + property) + StringEnd())
self._parser = pattern
self.ParseException = ParseException
percent = Literal('%')
ampersand = Literal('&')
misc = exclamation | at | percent | ampersand
over = Literal('over')
under = Literal('under')
#~ composite = over | under
overUnder = over | under
accent = Literal('hat') | Literal('check') | Literal('dot') | \
Literal('breve') | Literal('acute') | Literal('ddot') | \
Literal('grave') | Literal('tilde') | Literal('bar') | \
Literal('vec') | Literal('"') | Literal("`") | Literal("'") |\
Literal('~') | Literal('.') | Literal('^')
number = Combine(Word(nums) + Optional(Literal('.')) + Optional(Word(nums)))
plus = Literal('+')
minus = Literal('-')
times = Literal('*')
div = Literal('/')
binop = plus | minus | times | div
roman = Literal('rm')
cal = Literal('cal')
italics = Literal('it')
typewriter = Literal('tt')
fontname = roman | cal | italics | typewriter
texsym = Combine(bslash + Word(alphanums) + NotAny("{"))
semicolon = Literal(';')
exclamation = Literal('!')
punctuation = colon | comma | period | semicolon
at = Literal('@')
percent = Literal('%')
ampersand = Literal('&')
misc = exclamation | at | percent | ampersand
over = Literal('over')
under = Literal('under')
#~ composite = over | under
overUnder = over | under
number = Combine(Word(nums) + Optional(Literal('.')) + Optional(Word(nums)))
plus = Literal('+')
minus = Literal('-')
times = Literal('*')
div = Literal('/')
binop = plus | minus | times | div
roman = Literal('rm')
cal = Literal('cal')
italics = Literal('it')
typewriter = Literal('tt')
fontname = roman | cal | italics | typewriter
texsym = Combine(bslash + Word(alphanums) + NotAny(lbrace))