def parse_cg(self):
<EOL>line = self.readline()<EOL>while self._cg_header_re.match(line):<EOL><INDENT>line = self.readline()<EOL><DEDENT>entry_lines = []<EOL>while not self._cg_footer_re.match(line):<EOL><INDENT>if line.isspace():<EOL><INDENT>self.parse_cg_entry(entry_lines)<EOL>entry_lines = []<EOL><DEDENT>else:<EOL><INDENT>entry_lines.append(line)            <EOL><DEDENT>line = self.readline()<EOL><DEDENT>
Parse the call graph.