From: William James <w_a_x_man@...>
Date: 2007-01-23T12:01:56+09:00
Subject: Re: Problems with replacing text


Sam C. wrote:
> I am creating a small chatbot program in Ruby, and I need it to be able
> to change the word "I" to "You" when it is reading the user input. this
> is the code I am using:
>
> uinput['I'] = 'you'
>
> The problem is, whenever I enter text that doesn't include the word "I",
> an error is printed out and the program terminates. I am looking for a
> way to work around this, possibly a command that ignores the error, or
> an If-Then statement that checks to see if "I" exists before replacing
> it.

irb(main):005:0> input = "I see.  In fact, I understand."
=> "I see.  In fact, I understand."
irb(main):006:0> input.gsub!( /\bI\b/, "you" )
=> "you see.  In fact, you understand."