It tries to find ascii digits, and once it encounters something not an ascii digit it stops, with the default zero. So '(1)' is 0 and so is '(1' or '(' or 'a' but 1(0) is 1.

In reply to Re: "exit 1" and "exit(1)" are apparently not the same by sectokia
in thread "exit 1" and "exit(1)" are apparently not the same by syphilis

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