Hex RegEx misses hex values

[kungfooman]

There is this RegEx:

ganja.js/ganja.js

Line 1606 in 5aca551

/^\d+[.]{0,1}\d*[E][+-]{0,1}\d*|^\.\d+[E][+-]{0,1}\d*|^0x\d+|^\d+[.]{0,1}\d*|^\.\d+/g, // 3: literal hex, nonsci numbers

Broken down between | with example match for illustration:

'123.123E-123'.match(/^\d+[.]{0,1}\d*[E][+-]{0,1}\d*/g); // ✔️
'.123E-123'   .match(/^\.\d+[E][+-]{0,1}\d*/g         ); // ✔️
'0x123'       .match(/^0x\d+/g                        ); // ✔️
'0xABC'       .match(/^0x\d+/g                        ); // ❌
'123.123'     .match(/^\d+[.]{0,1}\d*/g               ); // ✔️
'.123'        .match(/^\.\d+/g                        ); // ✔️

The result is a token stream containing too many tokens:

I propose this RegEx, adding capital x via [xX], a-f and A-F:

'0xaAbB'.match(/^0[xX][\da-fA-F]+/g); // ✔️
'0XaAbB'.match(/^0[xX][\da-fA-F]+/g); // ✔️
'0x1234'.match(/^0[xX][\da-fA-F]+/g); // ✔️
'0X1234'.match(/^0[xX][\da-fA-F]+/g); // ✔️