Or, less ergonomically, the general rectangle-editing commands built into more powerful code editors e.g. Emacs.
With these, simple but fairly pretty box+line+text diagrams can be inlined with your source code comments. This unification may help in the perennial struggle to keep software architecture and source code reality in sync.
https://github.com/lewish/asciiflow
https://github.com/tbanel/uniline/
Or, less ergonomically, the general rectangle-editing commands built into more powerful code editors e.g. Emacs.
With these, simple but fairly pretty box+line+text diagrams can be inlined with your source code comments. This unification may help in the perennial struggle to keep software architecture and source code reality in sync.