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Specify bad-option for bad digit size option values #882

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Sep 16, 2024
Merged

Specify bad-option for bad digit size option values #882

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fc1140d
Specify `bad-option` for bad digit size option values
aphillips Sep 9, 2024
5a2b85b
adopt 'non-negative integer'
aphillips Sep 9, 2024
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5 changes: 4 additions & 1 deletion spec/registry.md
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Expand Up @@ -380,13 +380,16 @@ Implementations MAY define an upper limit on the resolved value
of a digit size option option consistent with that implementation's practical limits.

In most cases, the value of a digit size option will be a string that
encodes the value as a decimal integer.
encodes the value as a non-negative integer.
Implementations MAY also accept implementation-defined types as the value.
When provided as a string, the representation of a digit size option matches the following ABNF:
>```abnf
> digit-size-option = "0" / (("1"-"9") [DIGIT])
>```

If the value of a digit size option does not evaluate as a non-negative integer,
or if the value exceeds any implementation-defined upper limit
or any option-specific lower limit, a _Bad Option Error_ is emitted.

### Number Selection

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