Mass Deface 0: return self.lastpos return self.fp.tell() - self.start def seek(self, pos, whence=0): here = self.tell() if whence: if whence == 1: pos = pos + here elif whence == 2: if self.level > 0: pos = pos + self.lastpos else: raise Error, "can't use whence=2 yet" if not 0 <= pos <= here or \ self.level > 0 and pos > self.lastpos: raise Error, 'bad MultiFile.seek() call' self.fp.seek(pos + self.start) self.level = 0 self.last = 0 def readline(self): if self.level > 0: return '' line = self.fp.readline() # Real EOF? if not line: self.level = len(self.stack) self.last = (self.level > 0) if self.last: raise Error, 'sudden EOF in MultiFile.readline()' return '' assert self.level == 0 # Fast check to see if this is just data if self.is_data(line): return line else: # Ignore trailing whitespace on marker lines marker = line.rstrip() # No? OK, try to match a boundary. # Return the line (unstripped) if we don't. for i, sep in enumerate(reversed(self.stack)): if marker == self.section_divider(sep): self.last = 0 break elif marker == self.end_marker(sep): self.last = 1 break else: return line # We only get here if we see a section divider or EOM line if self.seekable: self.lastpos = self.tell() - len(line) self.level = i+1 if self.level > 1: raise Error,'Missing endmarker in MultiFile.readline()' return '' def readlines(self): list = [] while 1: line = self.readline() if not line: break list.append(line) return list def read(self): # Note: no size argument -- read until EOF only! return ''.join(self.readlines()) def next(self): while self.readline(): pass if self.level > 1 or self.last: return 0 self.level = 0 self.last = 0 if self.seekable: self.start = self.fp.tell() return 1 def push(self, sep): if self.level > 0: raise Error, 'bad MultiFile.push() call' self.stack.append(sep) if self.seekable: self.posstack.append(self.start) self.start = self.fp.tell() def pop(self): if self.stack == []: raise Error, 'bad MultiFile.pop() call' if self.level <= 1: self.last = 0 else: abslastpos = self.lastpos + self.start self.level = max(0, self.level - 1) self.stack.pop() if self.seekable: self.start = self.posstack.pop() if self.level > 0: self.lastpos = abslastpos - self.start def is_data(self, line): return line[:2] != '--' def section_divider(self, str): return "--" + str def end_marker(self, str): return "--" + str + "--"