当然，正则表达式被限定为严格的字符串比较。
Of course, regular expressions are limited to strict string comparisons.
正则表达式 /(wn|vera|gazetteer|foldoc)/ 将把打印输出限定到提供相关简要描述的那些数据库。
Regular expression /(wn|vera|gazetteer|foldoc)/ limits the printout to those databases that provide relatively terse descriptions.
用来定义要搜索的XML部分的XPath表达式没有包含名称空间前缀——换句话说，没有包含完全限定的元素名称(QName)。
The XPath expression used to define the XML part to search in does not contain the namespace prefix — the fully qualified element name (QName), in other words.
提示7：在XPath表达式中，尽可能使用全限定路径。
Tip 7: In XPath expressions, use fully specified paths as much as possible.
最重要的一点是XPath表达式只能引用名称空间前缀限定的元素和属性名。
Foremost among them is that XPath expressions can only reference namespace-qualified element and attribute names by the use of namespace prefixes.
此外，Friedl 的书还包括一些令人惊叹的正则表达式，可以准确地匹配完全限定的电子邮件地址和其他RequestforComments (RFC)特定的字符串。
Moreover, Friedl's book includes some truly mind-blowing regular expressions to properly match fully qualified e-mail addresses and other Request for Comments- (RFC) specified strings.
在命令行中，正则表达式的作用相当于形容词——一种描述或限定词。
On the command line, the regular expression ACTS as an adjective — a description or qualifier.
如果产生了异常，那么就会对那个限定了作用域的变量进行赋值：如清单18中的EL表达式所显示的那样，该变量的值将不会为空。
If an exception was raised, then assignment to the scoped variable will occur: as the EL expression in Listing 18 suggests, its value will not be empty.
主题表达式包含表达式类型、完全限定主题名称和前缀映射。
A topic expression is defined in terms of expression type, fully qualified topic name, and prefix mapping.
研究了塑件“主特征”和“限定特征”对成型收缩的影响关系，建立了考虑塑件结构特征影响的收缩关系表达式。
Mutual relation on molding shrinkage between central character and restriction character is studied, and connection formula is established.
如果正在用本机代码编程，有时可能需要限定变量名或包含变量名的表达式的上下文。
If you are programming in native code, you might sometimes have to qualify the context of a variable name or an expression that contains a variable name.
这些限定符使您能够指定，为使匹配为真，正则表达式的某个给定组件必须出现多少次。
These quantifiers let you specify how many times a given component of a regular expression must occur for a match to be true.
这些限定符使您能够指定，为使匹配为真，正则表达式的某个给定组件必须出现多少次。
These quantifiers let you specify how many times a given component of a regular expression must occur for a match to be true.
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