Support for international chars

[alexandrebini]

Hi there,

The pattern for validating the token's symbol does not support special chars today:

token-lists/src/tokenlist.schema.json

Lines 241 to 250 in 245d0ab

	"symbol": {
	"type": "string",
	"description": "The symbol for the token; must be alphanumeric",
	"pattern": "^[a-zA-Z0-9+\\-%/$.]+$",
	"minLength": 1,
	"maxLength": 20,
	"examples": [
	"USDC"
	]
	},

If you try to use 天津神 you will get a Token list failed validation: .tokens[1].symbol should match pattern "^[a-zA-Z0-9+\-%/$.]+$", but that's actually a valid symbol.

Thx

[alexandrebini]

Changing it to ^[\\p{L}+\\-%/$.]+$" or ^[\\S+\\-%/$.]+$" should work. I will try to find time to test it.

ref