Ruby Regex

[Sriram Varahan]

Hello,


I have this string:

"d:\\home\\abc2.zip\\abc.zip\\abc.com"

I need to extract the contents up to the first occurrence of zip which
would be:

"d:\\home\\abc2.zip"

When i use a regex like: \(.+).zip\ it gives me the entire contents upto
the second zip.

"d:\\home\\abc2.zip\\abc.zip" which is not what I am looking for.

Any solution to this?

Thanks.
Sriram.

 

[Robert Dober]

Hello,


=A0I have this string:

=A0 =A0"d:\\home\\abc2.zip\\abc.zip\\abc.com"

=A0I need to extract the contents up to the first occurrence of zip which
would be:

=A0"d:\\home\\abc2.zip"

When i use a regex like: \(.+).zip\ it gives me the entire contents upto
the second zip.

Why are you so greedy Sriram ? Well it is not you it is the "+"
which is greedy, try the non greedy version "+?" it might just give
you a nice surprise.
R.

 

[Sriram Varahan]

Was definitely a nice surprise! Thanks Robert for your help

 

[Robert Klemme]

Why are you so greedy Sriram ? Well it is not you it is the "+"
which is greedy, try the non greedy version "+?" it might just give
you a nice surprise.

Why not use File.dirname?

irb(main):003:0> File.dirname "d:\\home\\abc2.zip\\abc.zip\\abc.com"
=3D> "d:\\home\\abc2.zip\\abc.zip"

Cheers

robert


--=20
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

 

[Srijayanth Sridhar]

[Note: parts of this message were removed to make it a legal post.]

He only wanted the first occurrence of zip I think.

Jayanth

 

[Robert Klemme]

He only wanted the first occurrence of zip I think.

Ah, yes. I overlooked that. Sorry for the noise.

IMHO an anchor is in order:

irb(main):001:0> "d:\\home\\abc2.zip\\abc.zip\\abc.com"[/\A.*?\.zip/]
=> "d:\\home\\abc2.zip"

Cheers

robert