第3行将允许索引使用英文词法。
在学习了本教程之后，您将了解如何定义词法元素、编写yacc规则，并使用相应的规则机制来构建和定义各种不同的分析引擎和应用程序。
By the end of this tutorial, you'll understand how to define lexical elements, write yacc rules, and use the rule mechanism to build and define a range of different parsing engines and applications.
名称空间又带来了更大的词法灵活性(比如是否使用前缀是可选的)。
Namespaces introduce even more lexical flexibility (such as a choice of prefixes).
类似于P：RD，那些语法使用简单的规则来进行词法分析，然后使用更复杂的规则来解析经过词法分析后的输入内容。
Like p: : RD, those grammars use simple rules to do lexing, and then use more complex rules to parse the lexed input.
如何使用一个亚历克斯一元词法分析器与快乐吗？
在词法层次上，主要探讨合同中词语的确切含义与大量古词与同义词的使用。
In the lexical level, it discusses the exactness of word meaning, and the use of many archaic words and synonyms.
句法注意：在本章和之后的章节中，描述句法时使用与词法分析时不同的扩展BNF记法。当某个句法规则(可能是可选的)具有如下形式。
Syntax Notes: in this and the following chapters, extended BNF notation will be used to describe syntax, not lexical analysis. When (one alternative of) a syntax rule has the form.
给出解析抽象语法树所使用的词法规则和语法规则，提出了解析gcc抽象语法树的方法。
Lexical rules and syntax rules used for parsing syntax trees are given, and a method for parsing GCC is proposed.
指定在打开的词法范围内使用给定的、完全限定的命名空间名称。
Specifies that the given, fully qualified namespace name is used within the open lexical scope.
指定在当前打开的词法范围中正在使用给定的完全限定命名空间名称。
Specifies that the given fully qualified namespace name is being used within the currently open lexical scope.
使用LR分析表的词法分析器，统一了词法分析器和语法分析器的构造方法，简化了编译程序的设计和构造。
The lexical analyzer using the LR parsing table unifies the construction method of lexical analyzer and syntax analyzer, simplifies the design and construction of compiler.
在词法层次上，主要探讨合同中词语的确切含义与大量古词与同义词的使用。
In the lexical level, it discusses the exactness of word meaning, and the use of many archaic words and synonym...
恰当地使用增词法技巧，会使翻译出来的句子更加通顺自然，符合汉语习惯。
The proper use of word-adding skill can make the sentence smooth , which is proper to Chinese language.
在下节(“词法分析”)中使用的BNF都是词法定义，以后的章节是句法定义。
All USES of BNF in the next chapter (' lexical Analysis') are lexical definitions; USES in subsequent chapters are syntactic definitions.
因此，掌握和使用混生词及其构词法一般规律，很有现实意义。
Therefore, it is of significance to master and apply the blending and the rule of it's formation method.
因此，掌握和使用混生词及其构词法一般规律，很有现实意义。
Therefore, it is of significance to master and apply the blending and the rule of it's formation method.
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