EBNF sequence

asked Nov 4, 2022 in Wanted features by Todd Musheno (2,680 points)
closed Nov 9, 2022 by Todd Musheno

https://www.plantuml.com/plantuml/uml/SoWkIImgIKtAI-DAoKpFB2bMi5MeLZ9GKgXHK39KghNcSaZDIm590m00

I think the use of {} is incorrect...

The top arrow skipping the elements should not be there...

{} should be interpreated as 1 or more... zero or more would just be an optional sequence [{x}]... I hope that makes sense.

closed with the note: My mistake

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1 Answer

answered Nov 4, 2022 by plantuml (295,760 points)

Are you sure? It looks like {} means zero_or_more (see https://matt.might.net/articles/grammars-bnf-ebnf/ for example).

For one_or_more, you can use this notation.

commented Nov 8, 2022 by Todd Musheno (2,680 points)

No I am not 100%... will research when I have time

commented Nov 9, 2022 by Todd Musheno (2,680 points)

Never mind you are correct

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