gsub for string

[Reinhart Viane]

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

Hi,



I'm looking for a function that makes it possible to do the folowing:



Replace all substrings --xxxx-- with -xxxx--1 in a string.

The xxxx represents an unknown value (can be anything)



Is there a way to set unknow characters in a gsub function?



Thx!

 

[Robert Klemme]

I'm looking for a function that makes it possible to do the folowing:

Replace all =A0substrings --xxxx-- with -xxxx--1 in a string.

The xxxx represents an unknown value (can be anything)

Is there a way to set unknow characters in a gsub function?

You can match arbitrary characters and use capturing groups

str.gsub(/--([^-]+)--/, '-\\1--1')

Kind regards

robert

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

 

[Brian Candler]

You can match arbitrary characters and use capturing groups

str.gsub(/--([^-]+)--/, '-\\1--1')

which you can also do in a block form, which is sometimes clearer and
lets you do things like modifying xxxx.

str.gsub(/--([^-]+)--/) { "-#{$1}--1" }

 

[Robert Klemme]

You can match arbitrary characters and use capturing groups

str.gsub(/--([^-]+)--/, '-\\1--1')

which you can also do in a block form, which is sometimes clearer and
lets you do things like modifying xxxx.

str.gsub(/--([^-]+)--/) { "-#{$1}--1" }

For fairness reasons you should also mention that this is also slower
and not needed in this particular case since the replacement is fixed.


This is also a good opportunity to link to my most recent blog entry
which dealt with string replacements:

http://blog.rubybestpractices.com/posts/rklemme/020-Code_Massage.html

Cheers

robert