Replace command

[Peter Brigham MD]

Right, "replace" is the thing to use for a global replace task, but if  
you are doing a more sophisticated search/replace -- checking context  
of various matches and narrowing the search further -- the multiple  
offsets function is quite useful. Also, I need on occasion to find the  
*last* occurrence of a string in a container, and "item -1 of  
offsets(tString,tContainer)" is great for this.

-- Peter

Peter M. Brigham
pmbrig at gmail.com
http://home.comcast.net/~pmbrig


On Apr 10, 2010, at 2:51 PM, Mark Schonewille wrote:

> Peter,
>
> As David pointed out, you can do that easily with the replace  
> command. I thought I'll mention this to avoid confusion.
>
> --
> Best regards,
>
> Mark Schonewille
>
> Economy-x-Talk Consulting and Software Engineering
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> Op 10 apr 2010, om 20:28 heeft Peter Brigham MD het volgende  
> geschreven:
>>
>> The code above will find and replace the first occurrence of the  
>> string. For access to all the occurrences, use this handler:
>>
>> function offsets str,cntr
>> -- returns a comma-delimited list
>> -- of all the offsets of str in cntr
>> if str is not in cntr then return 0
>> put "" into offsetList
>> put 0 into startPoint
>> repeat
>>    put offset(str,cntr,startPoint) into thisOffset
>>    if thisOffset = 0 then exit repeat
>>    add thisOffset to startPoint
>>    put startPoint & comma after offsetList
>> end repeat
>> delete last char of offsetList
>> return offsetList
>> end offsets
>>
>> -- Peter
>>
>> Peter M. Brigham
>> pmbrig at gmail.com
>> http://home.comcast.net/~pmbrig
>>
>
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