Ruby Document format is a text markup language created in 1995. RD (Ruby Document) is a lightweight markup language for writing Ruby-related documents. It can be embedded in Ruby source code. RD is a traditional format. Read more on Wikipedia...

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Example code from Wikipedia:

print <<"END"
This indented block will not be scanned for formatting
codes or directives, and spacing will be preserved.

Last updated August 9th, 2020

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