Hello Freeman, > Le 9 juin 2020 à 09:43, Freeman Gilmore <freeman.gilm...@gmail.com> a écrit : > > On Tue, Jun 9, 2020 at 1:25 AM Michael Gerdau <m...@qata.de> wrote: >> >> Hi! >> >> I find your description difficult to understand. Maybe you could provide an >> set of examples showing exactly what you wish to be modified into what. > Sorry, that is the problem I have when someone asks about what i am > doing or trying to do. For me I find it best to just ask what I want > to know. Arron as well as some others answer my question when I do > not include these kinds of detail they do add confusion. Arron on my > initial post did not understand what I was asking eathere. > > So I will try again. Say you have "Xsdfghjkl" If "x" is the first > character then replace the "g" if it exist with "Y" => "XsdYfhjkl"X > >> Apart from that your problem sounds as if it is trivial when using non >> greedy regular expressions. > > I do not know what this means: non greedy regular expressions?
Greedy relates to how many characters are consumed by regular expressions when a match if found. You may need to learn more deeply about these to reach your goal. JM