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<https://github.com/The-OpenROAD-Project/OpenLane/issues/1780|#1780 Escaped backslash mis-handled in json config files>
Issue created by <https://github.com/kareefardi|kareefardi>
*Description*

A variable defined as `\\foo` in a json config file is represented in `config_in.tcl` and as `\\foo`

*Expected Behavior*

Value in `config_in.tcl` should be `\foo` since variables stored in config_in.tcl are wrapped in curly braces.

*Environment report*

```
Kernel: Linux v6.1.20-060120-generic
Distribution: ubuntu 22.04
Python: v3.10.6 (OK)
Container Engine: docker v20.10.22 (OK)
OpenLane Git Version: 0d205c619229eb3ba227e4a7fc042d344b8b6d07
pip: INSTALLED
python-venv: INSTALLED
---
PDK Version Verification Status: OK
---
Git Log (Last 3 Commits)

0d205c61 2023-04-27T13:21:06+02:00 Rename `PDN_CFG` to `FP_PDN_CFG` (#1773) - Kareem Farid -  (HEAD -&gt; master, origin/master, origin/HEAD)
a9419c0c 2023-04-27T12:23:22+02:00 [BOT] Update magic (#1758) - Openlane Bot -  ()
466eb0ba 2023-04-26T13:14:14+02:00 [BOT] Update openroad_app (#1695) - Openlane Bot -  (tag: 2023.04.27)
---
Git Remotes

fork	git@github.com:kareefardi/OpenLane.git (fetch)
fork	git@github.com:kareefardi/OpenLane.git (push)
origin	git@github.com:The-OpenROAD-Project/OpenLane.git (fetch)
origin	git@github.com:The-OpenROAD-Project/OpenLane.git (push)
```

*Reproduction material*

N/A

*Relevant log output*

```
N/A
```
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1780|#1780 Escaped backslash mis-handled in json config files>
Issue closed as completed by <https://github.com/kareefardi|kareefardi>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>