[Baypiggies] string to list question

[Andrew Toulouse]

Hm. Other people had the idea of using regexes, and theirs looks better. D'oh. Ignore me.

On Aug 4, 2010, at 9:52 PM, Andrew Toulouse wrote:

> Looks like you're trying to turn it into a bunch of tokens. I'm assuming you have an arbitrarily long string.
> 
> You could loop through each character in the input, append it to the stack, determine whether the stack is  a valid token, and output it (and reset the stack if so). In pseudocode:
> 
> def tokenizer(z):
>   def isValid(characterList):
>     return true if characterList is ['A'], ['T','/','G'], or ['C'] #this is pseudocode
> 
>   stack = []
>   for character in z:
>     stack.append(character)
>     if (isValid(stack)):
>       yield ''.join(stack)
> 
> print(list(tokenizer("AT/CG")))
> 
> Disclaimer: This is absolutely not super-optimal and is untested (and my Python is rusty, I've been doing almost all Java and Objective-C lately) but it should get the job done if you just need something quick, I think.
> 
> On Aug 4, 2010, at 9:43 PM, Brian Rue wrote:
> 
>> Naive solution:
>> 
>> zlist = [z[0], z[1:4], z[4]]
>> 
>> On Wed, Aug 4, 2010 at 9:37 PM, Vikram K <kpguy1975 at gmail.com> wrote:
>> Suppose i have this string:
>> z = 'AT/CG'
>> 
>> How do i get this list:
>> 
>> zlist = ['A','T/C','G']
>> 
>> 
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