Is there a string function that will tell me...
Steve Purcell
stephen_purcell at yahoo.com
Thu Apr 19 11:47:07 EDT 2001
Terrence Spencer wrote:
> In the Foxpro language the is a function called:
>
> AT(SearchingFor,StringToSearch,Count)
>
> So if I want to find out what location the 3rd "e" is in the string
> "terrence" I would say:
>
> ?at("e","terrence",3)
>
> and that would return 7, the location of the 3rd "e".
To find the first, use the standard function string.find :-
>>> import string
>>> s = "Municipal Advisory Council of Texas"
>>> string.find(s, "Texas")
30
>>>
To find the nth occurrence, roll your own function :-
>>> def findnth(s, substr, count):
... pos = -1
... for i in xrange(count):
... pos = string.find(s, substr, pos+1)
... if pos == -1: break
... return pos
...
>>> findnth(s, 'i', 3)
13
>>>
>>> findnth("terrence", "e", 3)
7
-Steve
--
Steve Purcell, Pythangelist
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