所生成的词法解析器可能会在检测到某个符号之前读入多个字符。
The generated lexical parser may read multiple characters ahead before it detects a token.
这门语言简单到甚至不需要有一个符号表来进行词法分析。
The language is simple enough that it does not even require a symbol table to parse.
一个脚本引擎通常包括的组件有：符号表、词法分析器、语法分析器、语义检查器、中间代码生成器、代码优化器、代码生成器、虚拟机。
The script engine has some components, include symbol table, lexical analyzer, parser, semantic checker, intermediate code generator, optimizer, code generator, virtual machine.
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