From: Steven Ketcham <steve@...>
Date: 2006-09-29T00:51:20+09:00
Subject: Regular expression reformating a value

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I am not really sure how to do this. I have a series of number that need
parsed. Strip the zeros, if a caret 
exists replace it with a slash.
 
1.) 000123^2 - should be 123/2
2.) 1^2 - should be 1/2
3.) 0001 - should be 1
4.) 000123 - should be 123

 

 

I do not know how to do the condtional to exclude the slash on examples 3 
and 4. How do I prevent the addition of the slash when there is no caret in 
the number?

 

 

reg = /(?:[1-9]{1}\d*)\W(?:\d*)/

puts  reg.match("000123^2");

puts  reg.match("123^2");

puts  reg.match("0001");

puts  reg.match("000123");

puts  reg.match("123");

 

Thanks!

 

 

 

 


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