Logos-Xcode brings Logos Syntax Hightlight to Xcode (tested on 9.4).

0 - You should make a backup of the folder /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources
1 - Clone this repo git clone https://github.com/pr0crustes/Logos-Xcode to any place you want.
2 - Cd to the folder with cd Logos-Xcode.
3 - Assert that Xcode is completed terminated.
4 - To create Logos.xclangspec, run python(3) xclangspec_generator.py.
5 - Run chmod +x install.sh, in order to give execution rights.
6 - Run sudo ./install.sh, to run the installation script.
7 - The script should explain itself, just follow the instructions.

To be honest, I hate when a script can only be run as root (security reasons), but in this case that's needed for writing to /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources.
You do not need to trust my word, since all the code is open source and I suggest everyone to read.

This code is provided as it is, without any warranty.
READ all the code before using it, since I am not responsible if it eventually breaks any future xcode version.

• Tiago Bastos (Fork)
• Alex Karahalios (Install Script)
• Bret Victor (Syntax file)
• Graham Henstridge (Syntax file)