"I made a program to generate dot files representing the LR(0) state graph along with computed LALR(1) lookahead for an arbitrary context-free grammar, to make the diagrams I used in this article: The program also highlights errant nodes in red if the grammar would produce a shift/reduce or reduce/reduce conflict -- you may be able to go to to produce a graph more to your liking". Contributed by Kalani Thielen.

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