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Nullable Rules? #78

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shnewto opened this issue Feb 4, 2021 · 0 comments
Open

Nullable Rules? #78

shnewto opened this issue Feb 4, 2021 · 0 comments

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@shnewto
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shnewto commented Feb 4, 2021

Unsure if there's any desire for them at the moment, but while doing some reading, I realized we aren't explicitly supporting nullable productions, i.e. non-terminals that can represent zero terminals...

Further reading:
https://en.wikipedia.org/wiki/Chomsky_normal_form
https://web.stanford.edu/class/archive/cs/cs143/cs143.1156/handouts/parsing.pdf
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