coli-saar / alto

Alto, the Algebraic Language Toolkit
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Tooltip on derivation tree node should show rule of automaton #9

Open akoehn opened 9 years ago

akoehn commented 9 years ago

Original report by Alexander Koller (Bitbucket: akoller, GitHub: alexanderkoller).


This would be really useful in debugging.

Challenge is that the derivation tree may be relative to a chart, and there may be multiple rules in the chart that use the same terminal symbol. Thus we have to recompute or somehow remember the rule tree that gave rise to this derivation tree.