enh(python) Match numeric literals per the language reference

[gibson042]

I started to work on #2766, but realized that the Python foundation I planned to use was itself incomplete, so I'm testing the waters with this and can follow up if it is accepted.

Changes

Replaced generic numeric regular expressions with specific ones to match the Python language reference.

Checklist

• Added markup tests, or they don't apply here because...
• Updated the changelog at CHANGES.md
• Added myself to AUTHORS.txt, under Contributors

[joshgoebel]

Great start! Looking good.

[gibson042]

@joshgoebel I see that a WIP 10.4.0 has been added to CHANGES.md... should this PR be part of that version, or a new WIP 10.3.2?

[joshgoebel]

10.4, x.x.Y is only for patch releases.

Are you wanting to solve the issue here on top of this work or make another PR after this one is merged?

[joshgoebel]

Looking good other than the notes I added. Almost there.

[gibson042]

Are you wanting to solve the issue here on top of this work or make another PR after this one is merged?

I'd prefer to handle the Ruby updates in a separate PR, which I can start on shortly (it will look very similar to this one).

[joshgoebel]

I'd prefer to handle the Ruby updates in a separate PR, which I can start on shortly (it will look very similar to this one).

Oh sure, I thought there was more python stuffs. :)

[joshgoebel]

@gibson042 Thanks so much!

[joshgoebel]

@gibson042 Can you please have a look at #2985

Is there a reason you went with \b for terminators for many numbers? IE, a specific problem you were trying to solve?

[joshgoebel]

Ping @gibson042

[joshgoebel]

@gibson042 Ping.

[joshgoebel]

@gibson042 Ping.

[gibson042]

Whoops, I'm not sure how I missed all those (but it has been a heck of a year). The primary reason for leading \bs is avoiding erroneous recognition of numbers inside identifiers like var0, and the primary reason for trailing \bs is avoiding tokenization like that of #2985 (which are invalid in many languages, but apparently not in Python). Let me see what I can do with it.

[joshgoebel]

Let me see what I can do with it.

Thanks - we're looking for an easy/simple fix though. I don't want to just keep adding tons of edge cases/complexity only to deal with code golf. I'd rather just say we don't support it.

So if nothing is obviously don't throw a bunch of time into coming up with anything crazy.