Keep only one part of a string

Ruby
1

Hello, how to better write that : self.ident = self.ident[/0-9*/]

I’m pretty sure there is a String method that would keep only the first
match of the regex but I didn’t found it in the String doc reference

Thanks

2

Zouplaz wrote:

Hello, how to better write that : self.ident = self.ident[/0-9*/]

I’m pretty sure there is a String method that would keep only the first
match of the regex but I didn’t found it in the String doc reference

ri String#slice, ri String#slice!

Thanks

3

le 15/09/2006 01:43, Eero S. nous a dit:

Fine ! Thanks… About the same topic (Strings) I wonder how to replace
“REF:90 REFERAL”.gsub!(‘REF:’,’’)
by something else

I tried with .delete but

“REF:90 REFERAL”.delete!(“REF:”) delete every R, E or F char in the
string

How to use delete ?

Thanks in advance

4

Zouplaz wrote:

Fine ! Thanks… About the same topic (Strings) I wonder how to replace
“REF:90 REFERAL”.gsub!(‘REF:’,’’)
by something else

What something else? Please say specifically what you want to
accomplish.
Post an example string before you apply your desired remedy, and after.

I tried with .delete but

“REF:90 REFERAL”.delete!(“REF:”) delete every R, E or F char in the string

How to use delete ?

You are asking how to apply a particular solution, but without first
stating
a problem. Maybe the problem is better solved using a different method.

5

le 15/09/2006 12:01, Paul L. nous a dit:

Thanks

Fine ! Thanks… About the same topic (Strings) I wonder how to replace
“REF:90 REFERAL”.gsub!(‘REF:’,’’)
by something else

What something else? Please say specifically what you want to accomplish.
Post an example string before you apply your desired remedy, and after.

Sorry, what I would like to know is if there is a another String method
to delete a part of a string instead of gsub

In the string “REF:90 REFERAL”

I want REF: to be deleted but not the REF or REFERAL

I’ve tried with the .delete method but each R, E F : char was deleted in
the string

6

On Fri, Sep 15, 2006 at 07:10:52PM +0900, Zouplaz wrote:

Sorry, what I would like to know is if there is a another String method
to delete a part of a string instead of gsub

In the string “REF:90 REFERAL”

I want REF: to be deleted but not the REF or REFERAL

I’ve tried with the .delete method but each R, E F : char was deleted in
the string
s = “REF:90 REFERAL”
s.slice!(“REF:”)
s #=> “90 REFERAL”

7

Zouplaz wrote:

Sorry, what I would like to know is if there is a another String method
to delete a part of a string instead of gsub

In the string “REF:90 REFERAL”

I want REF: to be deleted but not the REF or REFERAL

I’ve tried with the .delete method but each R, E F : char was deleted in
the string

You want String#slice!

s = ‘REF:90 REFERAL’
s.slice!(‘REF:’) # => “REF:”
s # => “90 REFERAL”

Check out the core documentation for the String class:
http://ruby-doc.org/core/classes/String.html

Regards,
Jordan