1#!/usr/local/bin/python 2# -*- coding: iso-8859-1 -*- 3 4# $Id$ 5 6# Copyright (c) 2004 Kungliga Tekniska Högskolan 7# (Royal Institute of Technology, Stockholm, Sweden). 8# All rights reserved. 9# 10# Redistribution and use in source and binary forms, with or without 11# modification, are permitted provided that the following conditions 12# are met: 13# 14# 1. Redistributions of source code must retain the above copyright 15# notice, this list of conditions and the following disclaimer. 16# 17# 2. Redistributions in binary form must reproduce the above copyright 18# notice, this list of conditions and the following disclaimer in the 19# documentation and/or other materials provided with the distribution. 20# 21# 3. Neither the name of the Institute nor the names of its contributors 22# may be used to endorse or promote products derived from this software 23# without specific prior written permission. 24# 25# THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 26# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28# ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 29# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35# SUCH DAMAGE. 36 37def subList(l, sl) : 38 """return the index of sl in l or None""" 39 lLen = len(l) 40 slLen = len(sl) 41 for i in range(lLen - slLen + 1): 42 j = 0 43 while j < slLen and l[i + j] == sl[j]: 44 j += 1 45 if j == slLen: 46 return i 47 return None 48 49