backticks : Float-like part of a variable identifier is changed in [XDeclaredButNotUsed] Hint

[kaushalmodi]

A variable name like `v0.99.99` changes when it's reported in the XDeclaredButNotUsed hint. The last part .99, seems like, is treated like a float.

Example

Run nim c t.nim.

let
  `v0.99` = "0.99"       # ok  Hint: 'v0.99' is declared but not used
  `v0.99.99` = "0.99.99" # ??  Hint: 'v0.99.98999999999999' is declared but not used

Current Output

/home/kmodi/sandbox/nim/bug_reports/declared_but_not_used/t.nim(2, 3) Hint: 'v0.99' is declared but not used [XDeclaredButNotUsed]
/home/kmodi/sandbox/nim/bug_reports/declared_but_not_used/t.nim(3, 3) Hint: 'v0.99.98999999999999' is declared but not used [XDeclaredButNotUsed]

Expected Output

/home/kmodi/sandbox/nim/bug_reports/declared_but_not_used/t.nim(2, 3) Hint: 'v0.99' is declared but not used [XDeclaredButNotUsed]
/home/kmodi/sandbox/nim/bug_reports/declared_but_not_used/t.nim(3, 3) Hint: 'v0.99.99' is declared but not used [XDeclaredButNotUsed]

Additional Information

• I was working on my version module when I noticed the strange-looking hints.

$ nim -v
Nim Compiler Version 1.3.5 [Linux: amd64]
Compiled at 2020-05-19
Copyright (c) 2006-2020 by Andreas Rumpf

git hash: e909486e5cde5a4a77cd6f21b42fc9ab38ec2ae6
active boot switches: -d:release

[ringabout]

It is OS specfic. It doesn't happen in windows.

[ringabout]

This is caused by Nim parser.

The contents between tkAccent is parsed like this in Linux

`   
v0
.
99.98999999999999
`

And 99.99 is printed differently:
in windows

99.99

in linux

99.98999999999999