1. The lexer is responsible for breaking down a sequence of characters into tokens.
词法分析器负责将字符序列分解成标记。

2. The lexer uses regular expressions to recognize and categorize different types of tokens.
词法分析器使用正则表达式来识别和分类不同类型的标记。

3. After the lexer processes the input, the tokens are passed on to the parser for further analysis.
在词法分析器处理输入后，标记被传递给解析器进行进一步分析。

4. The lexer plays a crucial role in the compilation process by converting source code into tokens.
词法分析器通过将源代码转换成标记，在编译过程中起着至关重要的作用。

5. It is important for the lexer to accurately identify keywords, identifiers, and symbols in the source code.
词法分析器准确识别源代码中的关键字、标识符和符号是很重要的。

6. The lexer's efficiency can greatly impact the overall performance of the compiler.
词法分析器的效率可以极大地影响编译器的整体性能。