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split_string.py
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split_string.py
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# 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.
import re
def split_string(source,splitlist):
output = []
atsplit = True #At a split point
for char in source:
if char in splitlist:
atsplit = True
else:
if atsplit:
output.append(char)
atsplit = False
else:
# add character to last word
output[-1] = output[-1] + char
return output
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']