Escape character is strings

Ruby
1

Hi all,

I’m very new to Ruby. My problem is simply to search for ‘’ character
from a string. The string is the windows file path. I have to either
escape the ‘’ character or substitute it with ‘/’. But String::include?
methods doesn’t seems to be helpful. Please see the log.

irb(main):004:0> fold = “abcdefgh/ajf;ldsj\dfd”
=> “abcdefgh/ajf;ldsjdfd”
irb(main):005:0> puts fold.include?("\")
false
=> nil
irb(main):006:0> puts fold.include?("")
irb(main):007:1"

so how can we search for the ‘’ using .include?

Thanks and Regards,
Deepu D

2

On Nov 26, 2007 9:51 AM, Deepu D. [email protected]
wrote:

false
Posted via http://www.ruby-forum.com/.

In a quoted expression, the backslash escapes the following character,
so you need to use two backslashes instead, like this:

irb(main):004:0> fold = “abcdefgh/ajf;ldsj\dfd”
=> “abcdefgh/ajf;ldsj\dfd”
irb(main):005:0> puts fold.include?(“\”)
true
=> nil

3

On Nov 26, 2007 8:51 AM, Deepu D. [email protected]
wrote:

false
=> nil
irb(main):006:0> puts fold.include?(“")
irb(main):007:1”

so how can we search for the '' using .include?

Your irb line 5 is just fine. It’s the line 4 that seems wrong. To
redo your line 4…

irb> fold = “abcdefgh/ajf;ldsj\def”

or…

irb> fold = ‘abcdefgh/ajf;ldsj\def’

The same goes for your line 6. Your are escaping the second " and
that’s why it’s asking you for another one.

hth,
Todd

4

You can use the integer equivalent of the character as well.

fold.include?(92)