您要使用正则表达式来实现该蒙版。
为此，上例中使用正则表达式进行替换。
To achieve this in the above example, you use a regular expression to perform the replacement.
使用正则表达式的另一个程序是awk。
Another program that USES regular expression extensively is awk.
用户不能自己输入文件或使用正则表达式。
They wouldn't be allowed to type in a list of files or use some kind of regular expression.
大量UNIX命令使用正则表达式作为参数。
使用正则表达式，逻辑就变得简单了。
The logic becomes trivial when you put regular expressions into action.
在命令行中，可以采用许多方法使用正则表达式。
At the command line, you'll find many ways to use regular expressions.
Unicode数据可以使用正则表达式进行匹配。
使用正则表达式、枚举、联合、列表和置换组的说明。
Explanation of using regular expressions, enumerations, unions, lists, and substitution groups.
使用正则表达式的文字进行搜索同样也依赖于字符编码。
Text searches using regular expressions are equally dependent on character encoding.
相反，XI使用正则表达式来将文本文档转换成XML。
XI, on the other hand, uses regular expressions to transform text documents into XML.
路由在模式匹配时使用正则表达式，并且使用XML表示。
Routes make use of regular expressions for pattern matching, and are expressed using XML.
遗憾的是，此类查询还体现出对于使用正则表达式的过度热衷。
Unfortunately, this kind of query also represents an overzealous use of regular expressions.
但是使用正则表达式比从XML代码中分解单独部分更加简单。
But it was easier to use regular expressions instead to crack the individual segments from the XML code.
浏览下面这篇文章——如何使用正则表达式优化查询并节约时间？
Navigate to the link to the following article - How to use regular expression to search better and save time?
清单8演示了如何使用正则表达式检查JSON字符串。
Listing 8 demonstrates how to check a JSON string with a regular expression.
相比之下，使用正则表达式可以更精练地描述同类规则。
In contrast, the same sort of rules can be described even more tersely using regular expressions.
样式表将首先使用正则表达式 /*匹配所传递的文档的根元素。
The stylesheet starts by matching the root element of the document that it is passed, using the regular expression /*.
重写规则可以使用正则表达式来实现功能强大的重写规则。
The rewriting rules can use regular expressions to allow for powerful rewriting rules.
然后就可以利用-match操作符来使用正则表达式。
Then you can use the regular expression with the -match operators. Here's an example.
对变量名长度的支持需要进一步了解如何使用正则表达式进行语法匹配
Support for variable name lengths requires more understanding of the use of regular expressions in syntax match
如何使用正则表达式(字符串范式)、枚举、联合、列表以及置换组？
How to use regular expressions (string patterns), enumerations, unions, lists, and substitution groups?
下面的示例演示如何使用正则表达式从文本中提取出坐标和面积等概念。
The following example show you how to use regular expressions to extract concepts such as coordinates and areas from text.
通过使用正则表达式引擎，很容易测试出字符串是否与模式匹配。
Using a regular expression engine, it is easy to test if a string matches the pattern.
在元素中指定模式时，请注意，要使用正则表达式来执行匹配和字符串替换。
When specifying patterns in the element, realize that regular expressions are used to perform the matching and string replacement.
为了使代码更加健壮，可以使用正则表达式而不是假定起始标签和前面相同。
To make this code a bit more robust, use a regular expression rather than assuming that the start-tag is exactly as shown above. In particular, you can account for a variety of possible attributes
有一定Perl经验的开发人员可能也有过使用正则表达式的经验。
A developer with some Perl experience already probably has some experience working with regular expressions, too.
本文通过一个详细的示例演示了如何使用正则表达式构建简单的指定实体提取任务。
A step-by-step example demonstrated how to build a a simple named entity extraction task using regular expressions.
它还为读者留下了一个练习，要求读者对示例代码使用正则表达式的方式作一些改进。
It also leaves as an exercise for the reader several enhancements to the way the sample code USES regular expressions.
它将使用正则表达式以确保文件名中仅使用有效字符，并且特别检查圆点字符：. .。
It USES regular expressions to make sure that only valid characters are used in the file name and checks specifically for the dot-dot characters:...
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