escape character with decimal value

[Roger Pack]

I'm familiar with
"\xnn" to escape a hex value in a string.

Is there any way to escape a character with a decimal value?
"#{197.chr}"
works but doesn't seem like an escape per se...
Thanks.
-r

 

[Robert Klemme]

I'm familiar with
"\xnn" to escape a hex value in a string.

Is there any way to escape a character with a decimal value?
"#{197.chr}"
works but doesn't seem like an escape per se...

There is octal

irb(main):008:0> "\011"
=> "\t"

But not decimal AFAIK. You would have to do the unescaping yourself, e.g.

irb(main):018:0> s = '\\33'
=> "\\33"
irb(main):019:0> s.gsub(/\\([1-9]\d*)/){ $1.to_i.chr }
=> "!"

Kind regards

robert