Ruby

Heredoc unindentation with <<~ works as expected when the identifier is bare or double-quoted:

s = <<~_	fiwfewifjf	iofwejfweifwe	fjiofwejfweiof f	fiwejfweof	_ puts s 

or

s = <<~"_"	fiwfewifjf	iofwejfweifwe	fjiofwejfweiof f	fiwejfweof	_ puts s 

Output:

fiwfewifjf	iofwejfweifwe	fjiofwejfweiof f	fiwejfweof 

But with a single-quoted identifier, the content is flushed left:

s = <<~'_'	fiwfewifjf	iofwejfweifwe	fjiofwejfweiof f	fiwejfweof	_ puts s 

Output:

fiwfewifjf iofwejfweifwe fjiofwejfweiof f fiwejfweof