1226031Sstas#!/usr/local/bin/python 2226031Sstas# -*- coding: iso-8859-1 -*- 3226031Sstas 4226031Sstas# $Id$ 5226031Sstas 6226031Sstas# Copyright (c) 2004 Kungliga Tekniska H��gskolan 7226031Sstas# (Royal Institute of Technology, Stockholm, Sweden). 8226031Sstas# All rights reserved. 9226031Sstas# 10226031Sstas# Redistribution and use in source and binary forms, with or without 11226031Sstas# modification, are permitted provided that the following conditions 12226031Sstas# are met: 13226031Sstas# 14226031Sstas# 1. Redistributions of source code must retain the above copyright 15226031Sstas# notice, this list of conditions and the following disclaimer. 16226031Sstas# 17226031Sstas# 2. Redistributions in binary form must reproduce the above copyright 18226031Sstas# notice, this list of conditions and the following disclaimer in the 19226031Sstas# documentation and/or other materials provided with the distribution. 20226031Sstas# 21226031Sstas# 3. Neither the name of the Institute nor the names of its contributors 22226031Sstas# may be used to endorse or promote products derived from this software 23226031Sstas# without specific prior written permission. 24226031Sstas# 25226031Sstas# THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 26226031Sstas# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27226031Sstas# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28226031Sstas# ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 29226031Sstas# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30226031Sstas# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31226031Sstas# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32226031Sstas# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33226031Sstas# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34226031Sstas# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35226031Sstas# SUCH DAMAGE. 36226031Sstas 37226031Sstasdef subList(l, sl) : 38226031Sstas """return the index of sl in l or None""" 39226031Sstas lLen = len(l) 40226031Sstas slLen = len(sl) 41226031Sstas for i in range(lLen - slLen + 1): 42226031Sstas j = 0 43226031Sstas while j < slLen and l[i + j] == sl[j]: 44226031Sstas j += 1 45226031Sstas if j == slLen: 46226031Sstas return i 47226031Sstas return None 48226031Sstas 49