Exemplo n.º 1
0
 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
Exemplo n.º 2
0
 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
Exemplo n.º 3
0
 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