From: 7stud -- <bbxx789_05ss@...>
Date: 2007-10-30T12:03:00+09:00
Subject: Re: How to trim a string

Dany Wu wrote:
> ...I'm looking for a way to return an x number of characters
> from a string, eg. 5 characters starting from position 10 in the string,
> the last 10 chars, the first 15 chars, etc.
> 
> Is there a String method that does this? I can't seem to find any but I
> may have missed something glaringly obvious. Any help would be greatly
> appreciated.
> 

str =  "In the absence of justice, what is sovereignty but organized 
robbery?"

#5 characters starting from position 10 in the string:

sub_str = str[10, 5]  #first char is pos 0, so pos 10 is 11th char
puts sub_str + "<----"

--output:--
ence <----



#the last 10 chars:

sub_str = str[-10..-1]
puts sub_str + "<----"

--output:--
d robbery?



#the first 15 chars:

sub_str = str[0...15] #notice the 3 dots v. 2 dots
puts sub_str + "<----"

--output:--
In the absence <----
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