🚀 Add number format expression

[AyhamAl-Ali]

Description

Add a new function to format numbers like 123,456,789

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Target Minecraft Versions: Any
Requirements: None
Related Issues: None

[AyhamAl-Ali]

Marking as Draft until I find a fix for the syntax conflict with ExprFormatDate (when using variables)

[Moderocky]

I am wondering whether this might actually be better as a built-in function (of the style formatNumber(number, pattern)), rather than as a syntax.
My concerns are threefold:

1. This a %thing% ... %thing syntax pattern, which is painful to parse.
2. The syntax feels a little clumsy, e.g. 10 formatted human-readable with "###" doesn't sound very English. This isn't your fault; I'm not sure if there is a nice way to phrase this.
3. I'm worried people might confuse 'formatted as' with 'parsed as' and try to misuse this, especially since it's specific to numbers currently.

This is just a suggestion, if you feel syntax is better than a function then that is fine.

[AyhamAl-Ali]

I am wondering whether this might actually be better as a built-in function (of the style formatNumber(number, pattern)), rather than as a syntax. My concerns are threefold:

1. This a `%thing% ... %thing` syntax pattern, which is painful to parse.

2. The syntax feels a little clumsy, e.g. `10 formatted human-readable with "###"` doesn't sound very English. This isn't your fault; I'm not sure if there is a nice way to phrase this.

3. I'm worried people might confuse 'formatted as' with 'parsed as' and try to misuse this, especially since it's specific to numbers currently.

This is just a suggestion, if you feel syntax is better than a function then that is fine.

This is a very good suggestion.. it will fix the major parsing issue of this syntax and formatted date syntax because they both are identical.

[sovdeeth]

Nice work!

[sovdeeth]

Some more examples of how to use DecimalFormat would be nice. The table on the javadocs is good, but pretty dense for new users.

[sovdeeth]

Make sure to test invalid numbers too! NaN, infinity, null values, etc.
Floating point would also be good to show.

[APickledWalrus]

looks good apart from sovde's requested changes. feel free to re-request my review after those changes are made.

[Efnilite]

Continued in #7166