The purpose of this application is to allow developers to add decent text based diagrams to their source code. For example (warning.. looks like ass on github. But looks good in vim or other actual editor that supports a legit font):

⦃ My_diagram ╭────────────────────────╮ │ │ │ │ │ │ │ Some text │ │ here! ╭────╯ │ │ ∧ │ │ │ │ │ │ │ │ │ ╰───────────────────╯ │ │ │ │ └─────────┐ │ │ ╭──────────────╮ │ │ More text │ │ │ there. │◁────────────┘ │ │ ╰──────────────╯ ⦄

This is still a work in progress, has a few bugs, and is not ready for prime time. To use, one would add a tag to their source like:

// ${diagram:My_Diagram}

and then execute:

$ edit.sh MyFile.cpp:My_Diagram

A curses based editor will appear that allows one to create a diagram consisting of shapes paths, arrows, text, etc. When the diagram is saved, the tag within the source will be replaced with the diagram. The diagram can be subsquently edited and saved by invoking the edit command again over and over. This is possible by the creation of a supplemental MyFile.cpp.json file containing meta-data about the diagrams that isn't contained in the diagram itself.