Do numerical suffixes on rules only need to be unique, or do they need to be consecutive too? Or strictly increasing?

[thejohnfreeman]

Related to this FAQ.

[msujew]

They only need to be unique. The numbers are purely used to create a unique index for each parser method call, but their order/consecutiveness does not matter.

[bd82]

Yeah, they only need to be unique with-in the same grammar rule.
And if you are using the APIs which allow passing a custom occurrence index as an argument,
than note these are limited to 8bits (0-255)

• https://github.com/Chevrotain/chevrotain/blob/master/packages/chevrotain/src/parse/grammar/keys.ts#L9
• https://chevrotain.io/documentation/10_5_0/classes/CstParser.html#many-2