If I want to add a control character to a string, is there a method to do so? I tried looking at the regexp class in the API, but that only seems to be relevant when you are searching for a control character.
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You can use format like \cx in double quoted string to represent control character x.
For instance:
"\cA\cD\cH"
#=> "\u0001\u0004\b"
For single character strings, this could also work:
?\C-A
#=> "\u0001"
?\C-H
#=> "\b"
Yu Hao
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Thank you, this is great. If I use ctrlD = "\cD" and then place the variable in a string like so `#{ctrlD}`, will it succesfully place the EOT control character in the string? – Oct 31 '14 at 14:34