On Thu, 23 Oct 2014 09:23:29 -0400, Dennis Lee Bieber
<wlfr...@ix.netcom.com> wrote:
>On Thu, 23 Oct 2014 00:10:28 -0700, Larry Hudson
><org...@yahoo.com.dmarc.invalid> declaimed the following:
>
>
>>I know you are trying to explore lists here, but I found myself somewhat
>>intrigued with the
>>problem itself, so I wrote a different version. This version does not use
>>lists but only
>>strings. I'm just presenting it as-is to let you try to follow the logic,
>>but if you ask, I'll
>>explain it in detail. It turns your long sequence of if's essentially into a
>>single line --
>>unfortunately 's' and 'z' have to be handled as special-cases, which turns
>>that single line into
>>a six-line if/elif/else set. You might consider this line 'tricky', but I'll
>>just say it's just
>>looking at the problem from a different viewpoint. BTW, this version accepts
>>upper-case as well
>>as lower-case. isdigit() and isalpha() are standard string methods.
>>
>
><SNIP>
>
> This is another example where changing data structures can simplify
>things a lot...
>
>-=-=-=-=-=-=-
>keys = { "a" : "2", "b" : "2", "c" : "2", # 1 is not assigned
> "d" : "3", "e" : "3", "f" : "3",
> "g" : "4", "h" : "4", "i" : "4",
> "j" : "5", "k" : "5", "l" : "5",
> "m" : "6", "n" : "6", "o" : "6",
> "p" : "7", "q" : "7", "r" : "7", "s" : "7",
> "t" : "8", "u" : "8", "v" : "8",
> "w" : "9", "x" : "9", "y" : "9", "z" : "9" }
>
>def textToNumber(inp):
> outp = []
> for c in inp.lower():
> outp.append(keys.get(c, c))
> return "".join(outp)
>
>if __name__ == "__main__":
> while True:
> #NOTE: Python 2.7!
> aNumStr = raw_input("\nEnter Phone Number String: ")
> if not aNumStr: break
> print "Converted to all numbers: %s" % textToNumber(aNumStr)
>
I'll have a look at this one too. I haven't used a dictionary yet.
Thanks
>-=-=-=-=-=-=-
>Microsoft Windows [Version 6.1.7601]
>Copyright (c) 2009 Microsoft Corporation. All rights reserved.
>
>C:\Users\Wulfraed\Documents\Python Progs>Phone.py
>
>Enter Phone Number String: 1-800-getcharter
>Converted to all numbers: 1-800-4382427837
>
>Enter Phone Number String: 1-800-leo laporte
>Converted to all numbers: 1-800-536 5276783
>
>Enter Phone Number String: 1 800 callaprogrammer
>Converted to all numbers: 1 800 225527764726637
>
>Enter Phone Number String: +1(800)Leo-Laporte
>Converted to all numbers: +1(800)536-5276783
>
>Enter Phone Number String:
>
>C:\Users\Wulfraed\Documents\Python Progs>
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