Replacing Characters

[JB]

Thanks, Kay!

The problem is there are no delimiters.  It
is a string of only chars A to F and there
are no spaces etc.

John Balgenorth


On Sep 26, 2014, at 11:19 PM, Kay C Lan <lan.kc.macmail at gmail.com> wrote:

> Assuming tBigList contains your data and it is a tab separated list.
> 
> set the itemDelimiter to tab
> repeat for each item tSearchThis in tBigList
> if (char 3 of tSearchThis = "D") then
>   put "+" into char 3 of tSearchThis
> end if
> put tSearchThis & tab after tNewList
> end repeat
> --remove the trailing tab
> put word 1 to -1 of tNewList into tNewList
> set the itemDelimiter to comma
> 
> tNewList should now be your corrected list
> 
> HTH
> 
> On Sat, Sep 27, 2014 at 12:26 PM, JB <sundown at pacifier.com> wrote:
>> I want to replace every third character in
>> a text string if it is a certain character.  So
>> lets say I have a list of characters there
>> range from A thru F and the list is possibly
>> 10,000 characters long.
>> 
>> I want to check every third character in the
>> list and if it is a D then I want to change it
>> to a +.
>> 
>> I can probably do it with a repeat and use a
>> variable for a counter that resets every three
>> times and then check the character when the
>> counter gets to three but I was wondering if it
>> could be done faster somehow.
>> 
>> John Balgenorth
>> 
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