in reply to Re^2: Substituting a comma only when it is preceded and followed by a bracket
in thread Substituting a comma only when it is preceded and followed by a bracket

The specification is unclear in this regard.

I think the specification is very clear and has all the appearance of being thorough. I took it to be so.

Whilst is doesn't mention that there won't be nested parens, it also doesn't mention that the commas might one of the Unicode variants (eg.(U+060C)). Either would be a significant fact worthy of mention.

For example, what would you do with commas inside the outer parens, but outside the inner ones?

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