[Tutor] avoid split function

[Chad Crabtree]

Well I'm abashed.  I wrote it out as a long string of code then put
it 
into a function without really thinking it through.  Thank you for
you 
critique.  I didn't even think of the empty string issue.  Here's a 
better one with the additional error checking
a="This is a test"
def split(astr):  
    m=[]
    temp=""
    if astr=='':
        return []
    for l in astr:
        if l==" ":
            m.append(temp)
            temp=""
        else:
            temp=temp + l
    m.append(temp)
    return m

####output####
 >>> ['This', 'is', 'a', 'test']
[]
['this', 'might', 'be', 'a', 'test', 'I', "don't", 'know']

Kent Johnson wrote:

> Thank you for showing the best way to iterate over a string! But be

> careful of the boundary conditions. With your definition, splitting
an 
> empty string returns a list containing an empty string (split('')
== 
> ['']) whereas splitting an empty string with the system split
returns 
> an empty list (''.split() == [])
>
> Also mind your names - your function arg is named 'string' but your

> loop iterates over 'a'.
>
> Kent
>
> At 08:29 PM 8/12/2004 -0700, Chad Crabtree wrote:
>
>> Just thought I'd give my take without index counting.
>> a="This is a test"
>> def split(string):
>>     m=[]
>>     temp=""
>>     for l in a:
>>         if l==" ":
>>             m.append(temp)
>>             temp=""
>>         else:
>>             temp=temp + l
>>     m.append(temp)
>>     return m
>> print split(a)
>
>
> _______________________________________________
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> http://mail.python.org/mailman/listinfo/tutor
>
>



		
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