Than to build block diagram?

Than you can build a school block diagrams (preferably automatically)?
Manually draw in paint-word-Visio-dio and other editors - it is not convenient, crooked and long.
For Pascal I found fceditor who live by the code builds this circuit, and this is the best version of me tried. But unfortunately it only works for Pascal.
Need conventional block diagrams, not class diagrams or threads or any uml.

While googling, stumbled upon a certain afce, but it does the opposite thing.
July 8th 19 at 15:42

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