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As b(a(x)) is really a wrong parse I had a closer look. Turns that there was a serious flaw in cascading postfix operators that nests the terms in the wrong order and hence does also not notice the priority conflict. Strange bug after all those years … I guess the message is that postfix oper…

Operator associativity

Help!

EricGT January 9, 2022, 12:21pm 18

Wow!

Look what happened to your test file.

EDIT

You are were even mentioned in the latest release notes.

Fixes to read/1 and friends for postfix operators (@keke)

1 Like

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Operator associativity

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