Install gedit-source-code-browser-plugin by entering the following commands in the terminal:
sudo apt update sudo apt install gedit-source-code-browser-plugin
Description:
source code class and function browser plugin for Gedit
This plugin will add a new tab to the side pane in the Gedit text editor which shows symbols (functions, classes, variables, etc.) for the active document. Clicking a symbol in the list will jump to the line on which that symbol is defined.
Homepage: https://github.com/Quixotix/gedit-source-code-browser
Version: 3.0.3-5
Section: universe/gnome