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$$'...' parsing bug?


From: Christian Weisgerber
Subject: $$'...' parsing bug?
Date: Mon, 30 Jan 2017 16:31:47 +0100
User-agent: Mutt/1.7.2 (2016-11-26)

This came up on comp.unix.shell: 
There appears to be a parsing problem in bash where the sequence
$$'...' is treated as $'...', and $$"..." as $"...", when inside
$(...).

$ echo 'x\nx'
x\nx
$ echo $'x\nx'
x
x     
$ echo $$'x\nx'
86293x\nx
$ echo $(echo $'x\nx')
x x
$ echo $(echo $$'x\nx')
x x

This is with bash 4.4.12... but a quick check shows the same behavior
with 4.2.37.
-- 
Christian "naddy" Weisgerber                          address@hidden



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