[Newbies] Lookaround Regex to manipulate Strings

[Cédrick Béler]

>
>
> I have a fileName and I want to cut off its file extension (.jpg, .png
> etc.). To do this efficiently I wanted to use regular expressions with
> lookaround.
>
> So let's assume the following:
>
> | fileName |
> fileName := 'test.jpg'.
>
> fileName matchesRegex: '.+(=?.(jpg|jpeg|png))'
>
> I thought there is a possibility of returning the string without file
> extension through lookaround.
>
> Do you have any hints for me?
>

#sansPeriodSuffix can help

or if you want only some extension:
fileName regex: '.+(=?.(jpg|jpeg|png))' matchesDo: [:fname | newFileName:=
fname sansPeriodSuffix]

you probably can do it only with regex but I don't know right now :)

hth,




>
> Thanks guys!
>
> Regards,
> Hans
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-- 
Cédrick
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