split_string-method 2.py

# 1 Gold Star

# The built-in <string>.split() procedure works
# okay, but fails to find all the words on a page
# because it only uses whitespace to split the
# string. To do better, we should also use punctuation
# marks to split the page into words.

# Define a procedure, split_string, that takes two
# inputs: the string to split and a string containing
# all of the characters considered separators. The
# procedure should return a list of strings that break
# the source string up by the characters in the
# splitlist.



def split_string(source, splitlist):
    sl = list(splitlist)
    for i in sl:
        source = source.replace(i,sl[0])
    slist = source.split(sl[0])
    result = []
    # at first, I used slist.remove,
    # #but due to the change of slist during loop,
    # it can't remove all ''.
    for j in slist:
        if j:
            result.append(j)
    return result



out = split_string("This is a test-of the,string separation-code!", " ,!-")
print out
# >>> ['This', 'is', 'a', 'test', 'of', 'the', 'string', 'separation', 'code']

out = split_string("After  the flood   ...  all the colors came out.", " .")
print out
# >>> ['After', 'the', 'flood', 'all', 'the', 'colors', 'came', 'out']

out = split_string("First Name,Last Name,Street Address,City,State,Zip Code", ",")
print out
# >>>['First Name', 'Last Name', 'Street Address', 'City', 'State', 'Zip Code']