Is it possible to use a reverse direction for offset

[Craig Newman]

Francois.

I am sure you know what you have and what you need.

But just for my curiosity, if I had to do what you want, I would have used the “offset” function and its “charsToSkip” parameter to find all instances of the text to find, and then use those values in sequence to work backwards. But then how do you know when to stop?

Craig

> On Mar 23, 2023, at 11:30 AM, François via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> The text source is not very big.
> 
> However I implement transcoding from one language to another and I do an VERY large amount of search and replace.
> 
> I think I have quite optimized my LC code but transcoding can take 5 minutes to do, and I need the whole process to chase unexpected bugs. This is using the forward search (offset) most of the time.
> 
> Using a standalone app takes the time down to 4 minutes, which is not a sufficient gain for my usage.
> 
> François
> 
>> Le 23 mars 2023 à 16:21, Craig Newman via use-livecode <use-livecode at lists.runrev.com> a écrit :
>> 
>> Francois.
>> 
>> Who wouldn’t?
>> 
>> But unless you are working with VERY large datasets, I bet a handler would process quickly.
>> 
>> Craig
>> 
>>> On Mar 23, 2023, at 10:58 AM, François via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> 
>>> @Ben
>>> 
>>> Too bad…
>>> 
>>> @ Craig
>>> 
>>> I would rather have an optimized version, I do a lot of text processing in my app.
>>> 
>>> Thanks to both of you!
>>> François
>>> 
>>>> Le 23 mars 2023 à 14:43, Craig Newman via use-livecode <use-livecode at lists.runrev.com> a écrit :
>>>> 
>>>> @Ben.
>>>> 
>>>> 20 years! Congratulations!.
>>>> 
>>>> @Francois
>>>> 
>>>> This can be scripted easily. Do you need help with that?
>>>> 
>>>> Craig
>>>> 
>>>>> On Mar 23, 2023, at 8:21 AM, Ben Rubinstein via use-livecode <use-livecode at lists.runrev.com> wrote:
>>>>> 
>>>>> https://quality.livecode.com/show_bug.cgi?id=584 (20th anniversary this September!)
>>>>> 
>>>>> Also
>>>>> https://quality.livecode.com/show_bug.cgi?id=8353
>>>>> 
>>>>> 
>>>>> 
>>>>> On 23/03/2023 11:35, François via use-livecode wrote:
>>>>>> I would like to search for a string within another string, starting at a given position, but backward.
>>>>>> In some languages, you can achieve that by providing a negative number for the initial position of the search.
>>>>>> Is this possible in LiveCode?
>>>>>> TIA
>>>>>> François
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