# Twisted, the Framework of Your Internet # Copyright (C) 2001-2002 Matthew W. Lefkowitz # # This library is free software; you can redistribute it and/or # modify it under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # def parse(s): s = s.strip() expr = [] while s: if s[0] == '(': newSexp = [] if expr: expr[-1].append(newSexp) expr.append(newSexp) s = s[1:] continue if s[0] == ')': aList = expr.pop() s=s[1:] if not expr: assert not s return aList continue i = 0 while s[i].isdigit(): i+=1 assert i length = int(s[:i]) data = s[i+1:i+1+length] expr[-1].append(data) s=s[i+1+length:] assert 0, "this should not happen" def pack(sexp): s = "" for o in sexp: if type(o) in (type(()), type([])): s+='(' s+=pack(o) s+=')' else: s+='%i:%s' % (len(o), o) return s