def _parse_string_set(self, value):
# string-set may set multiple strings (separated by commas)
# For example:
# { string-set: string1 "value1", string2 "value2", string3 counter(item, decimal); }
# Also, we can't just split on commas because for example target-text() has commas in it
# This first piece is just a glorified split(',')
stream = TokenStream(cssselect.tokenize(value))
values = []
acc = ''
parentheses = 0
while stream.peek() is not None:
token = stream.next()
if str(token) == ',' and parentheses == 0:
values.append(acc)
acc = ''
else:
if str(token) == '(':
parentheses += 1
elif str(token) == ')':
parentheses -= 1
if type(token) == String:
acc += '"%s" ' % str(token)
else:
acc += str(token) + ' '
if acc != '':
values.append(acc)
acc = []
for val in values:
stream = TokenStream(cssselect.tokenize(val))
string_name = str(stream.next())
string_value = val[len(string_name) + 1:]
acc.append((string_name, ContentPropertyParser().parse(string_value)))
return acc
def parse(self, value):
""" Given a string like "'Exercise ' target-counter(attr(href, url), chapter, decimal) counters(section)"
return a list of the form:
(function-name or None, values) """
vals = []
stream = TokenStream(cssselect.tokenize(value))
while stream.peek() is not None:
t = stream.next()
if isinstance(t, String):
vals.append((None, str(t)))
else:
name = str(t)
val = None
method = '_parse_' + name.replace('-', '_')
if hasattr(self, method):
method = getattr(self, method)
val = method(stream)
#else:
# name = ContentPropertyParser.UNKNOWN
# val = [t].concat(self._unknown(stream))
# If anything fails parsing (ie it's None) then the whole line is unusable
if val is None:
return None
vals.append((name, val))
return vals
def _counter(self, value, default):
acc = []
stream = TokenStream(cssselect.tokenize(value))
while stream.peek() is not None:
name = str(stream.next())
by = default
if _is_int(str(stream.peek())):
by = int(str(stream.next()))
acc.append((name, by))
return acc