feat: add molang package

1. upgrade bukkit chat
2. fix config update error

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/molang/src/parser/parselets/loop.ts

@@ -0,0 +1,29 @@
+import { Parser } from '../parse'
+import { Token } from '../../tokenizer/token'
+import { IPrefixParselet } from './prefix'
+import { IExpression } from '../expression'
+import { LoopExpression } from '../expressions/loop'
+
+export class LoopParselet implements IPrefixParselet {
+	constructor(public precedence = 0) {}
+
+	parse(parser: Parser, token: Token) {
+		parser.consume('LEFT_PARENT')
+		const args: IExpression[] = []
+
+		if (parser.match('RIGHT_PARENT'))
+			throw new Error(`loop() called without arguments`)
+
+		do {
+			args.push(parser.parseExpression())
+		} while (parser.match('COMMA'))
+		parser.consume('RIGHT_PARENT')
+
+		if (args.length !== 2)
+			throw new Error(
+				`There must be exactly two loop() arguments; found ${args.length}`
+			)
+
+		return new LoopExpression(args[0], args[1])
+	}
+}