From 193e616636ea5cbd3401bd91482a560f91123895 Mon Sep 17 00:00:00 2001
From: rulego-team <rulego@outlook.com>
Date: Mon, 16 Jun 2025 12:06:16 +0800
Subject: [PATCH] fix:Array Index Parsing Fails on Complex Structures

---
 rsql/lexer.go | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/rsql/lexer.go b/rsql/lexer.go
index 5def1c1..59ca231 100644
--- a/rsql/lexer.go
+++ b/rsql/lexer.go
@@ -235,20 +235,10 @@ func (l *Lexer) peekChar() byte {
 
 func (l *Lexer) readIdentifier() string {
 	position := l.pos
-	for isLetter(l.ch) || isDigit(l.ch) || l.ch == '.' || l.ch == '[' || l.ch == ']' || l.ch == '\'' || l.ch == '"' {
-		// 如果遇到方括号，需要特殊处理以确保括号内容被正确包含
-		if l.ch == '[' {
-			l.readChar() // 跳过 '['
-			// 继续读取直到找到匹配的 ']'
-			for l.ch != ']' && l.ch != 0 {
-				l.readChar()
-			}
-			if l.ch == ']' {
-				l.readChar() // 跳过 ']'
-			}
-		} else {
-			l.readChar()
-		}
+	// 只处理基本标识符和点号（用于嵌套字段访问）
+	// 数组索引（方括号）应该由解析器处理，而不是词法分析器
+	for isLetter(l.ch) || isDigit(l.ch) || l.ch == '.' {
+		l.readChar()
 	}
 	return l.input[position:l.pos]
 }