I have a requirement where I have to fetch prefix in a text excluding right hand side digit pattern.

For ex: AB9T0005 should give me only AB9T

AB9T-K1A-0005 should give me only AB9T-K1A-

What I mean is prefix may include any input including numbers and other alpha numeric values.

With out using regular expression I will parse from right to left till I find non numeric value and will take substring of it.

I have used following regular expression \b(?<=.*)\d*\b but of no use?

It is failing for this input abc123

Can any one help me in this?

Thanks in Advance

Naga

 

You could try:

^.*\D+

---

chambarish:

I have used following regular expression \b(?<=.*)\d*\b but of no use?

It is failing for this input abc123

I'm not sure of what you were thinking that pattern would do but I get the impression you don't really understand how look-arounds work. And since you made no mention of what language you are doing this in as requested in the posting guidelines there's no way to know if you can even use look-behinds.

the pattern

.*\D

will perform your task against the provided samples.

---

Michael

"In theory, theory and practice are the same. In practice, they are not."
Albert Einstein

It worked.

Thank you very much for your kind help.

Naga.

Text

AB9T0005
AB9T-K1A-0005

Regex

.*\w[^\d\s]

Result:

AB9T
AB9T-K1A-

Look at examples

http://komandin.org/regex/regex_view.html

 

 mash's regex the best 

 

.*\D