MyFunctions

#!/usr/bin/python

# Name:     download
# Function: Copy the contents of a file from a given URL
#       to a local file.
# Parameter:    url - URL to the file, which should be donwloaded
# Return:   none
# Remarks:  none

import urllib
def download(url):
    webFile = urllib.urlopen(url)
    localFile = open(url.split('/')[-1], 'w')
    localFile.write(webFile.read())
    webFile.close()
    localFile.close()

# Name:     strstr
# Function: Get string in string
# Parameter:    sourcestring - String in which should be searched
#       searchstring - String to search in sourcestring
#       offset - offset to start searching
# Return:   None if failure
#       String since found string
# Remarks:  none

def strstr(sourcestring, searchstring, offset = 0):
    pos = sourcestring.find(searchstring, offset)
    if pos < 0:
            return None
    else:
        return sourcestring[pos:]

# Name:     StringBetween
# Function: Get string between two strings
# Parameter:    sourcestring - String in which should be searched
#       beginstring - the first string to determine
#       endstring - the last string to determine
# Return:   None if failure
#       String between the two strings
# Remarks:  none

def StringBetween(searchstring, beginstring, endstring):
    start = strstr(searchstring, beginstring)
    if start == None:
        return None
    start = start[len(beginstring):]
    pos = start.find(endstring)
    if pos < 0:
            return None
    else:
        return start[:pos]