正则表达式 是定义匹配模式的字符串。
Regular expressions are strings of characters that define a pattern to be matched.
相反，嵌入到括号内的模式将捕捉匹配模式的文本。
Instead, embedding a pattern within parentheses captures the text that matches the pattern.
如果您忽略了此参数或传递空字符串，则将使用默认匹配模式。
If you omit this parameter or pass an empty string, the default matching modes are used.
匹配模式，描述了可以通过函数的参数MODE指定的模式匹配的不同类型。
Matching modes, which describe the different types of pattern matching that can be specified through the function's parameter mode.
正则表达式是根据文本匹配模式的方法—类似于编译器生成类文件的工作原理。
Regular expressions are ways to match patterns against text — similar to how a compiler works to generate class files.
这个输入文档示例对于编写匹配模式及测试和调试您的XSLT是非常重要的。
The sample input document is essential to coding the matching patterns and testing and debugging your XSLT.
这些计数方法仅提供包含匹配模式的行数——如果那就是您要查找的结果，这没什么问题。
These counting methods only give counts of the number of lines containing matched patterns -- and if that is what you are looking for, that is great.
在该匹配模式中取消订阅。仅仅是已经订阅并且调用取消订阅的这个客户端受影响。
Will then unsubscribe the client from that pattern. No other subscriptions will be affected by this call.
在matching - substring指令内部，句号(.)表示匹配模式的字符串。
Inside a matching-substring instruction, the period (.) represents the string that matched the pattern.
如果能很好地利用精准的、本地化的关键词匹配模式和内容，商家将会大幅度地降低单位成本并增加用户体验。
Marketers that employ a highly customized localized approach to keyword match types and content will enjoy lower cost-per-sale and a better user experience.
给定一个正则表达式和数据，正则表达式引擎将得到数据是否匹配模式及匹配内容(如果找到匹配)等结果。
Given a regex and a datum, a regex engine yields whether the datum matches a pattern and, if a match was found, what matched.
本文还对于在相似性查询过程中必要的环节如匹配模式、分类算法和查询中可能存在的问题作了详细地分析。
The thesis also discusses the necessary junctures such as the matching model, algorithms of classification and some possible problems in details.
正则表达式是一种非常重要和有效的字符串匹配模式，将其应用于SQL语句中，具有强大的数据处理功能。
The regular expression is a very important and effective string search mode. It has powerful data processing ability when being applied to the SQL statement.
你可以使用一个下划线(Scala的标准通配符)作为占位符来捕捉任意类型的异常(不骗你，它可以匹配模式匹配表达式的任何case)。
You can use an underscore (Scala's standard wild card character) as a placeholder to catch any type of exception (really, to match any case in a pattern matching expression).
正则表达式(regular expression,regexp)是用于描述字符串集的匹配模式的概念，在很多程序和语言中都是通用的。
The concept of regular expressions (regexps) -a notation for describing a pattern that matches a set of strings-is common across many programs and languages.
然后，引擎能够将这些事件互相关联、侦测符合匹配模式的情况并在一些特定的业务条件被满足时发出警告，例如，同一个人在两个不同的国家申请贷款的情况。
The engine then correlates those events and detect patterns and raise alerts given a certain business condition, such as a loan of the same person on two different countries.
它代表之前的匹配模式重复n次或n次以上，如果没有加上问号，它会寻找尽可能多的重复次数，加上的话，则会尽可能少重复（当然也就是“重复n次”最少）。
This matches the previous expression n or more times. If it is used without a question mark, it looks for the most repetitions possible.
一位英国天文学家在分析一台太阳光摄谱仪时，注意到一种特殊的光谱线模式，它与图书馆里的任何一种都不匹配。
A British astronomer was analyzing a spectrograph of sunlight, and he noticed a particular pattern of spectral lines that didn't match anything in the library.
那么我们如何知道哪些光谱模式与哪些元素相匹配呢？
So how do we know which spectral patterns match up with which elements?
清单11给出了模式匹配扩展的一些基本用法。
Listing 11 shows some basic usage of the pattern matching expansions.
我们大脑是模式匹配机器，因此我们更容易注意到这样的模式。
Our brains are just pattern matching machines, so we tend to notice patterns like that.
此命令仅仅输出输入中匹配的模式，而不会输出包含匹配的行。
This command only outputs the matched patterns from the input, not the lines of the input that contain a match.
这个“密码”文件非常容易读取，并且通过尝试和匹配敲打模式，可以获得对系统的访问权限。
It is comparatively easy to read this "password" file and simply try and match the knock pattern to gain access to this system.
为变量赋值实际上就是一种特殊的模式匹配。
Assigning values to variables is actually a special type of pattern matching.
在这个示例中，使用模式匹配提取列表的开头和结尾部分。
In that example, pattern matching was used to extract both the head and the tail of the list.
这两个文件中的模式匹配规则控制拒绝或允许什么。
Rules to pattern matching in both these files will control what gets denied or allowed.
活动模式的思想就是让你能把模式匹配语法用于其他数据结构。
The idea of active patterns is to enable you to use the pattern matching syntax with other data structures.
内置的操作符使得文本搜索、替换和模式匹配轻而易举。
The built-in operators make text searching, replacing, and pattern matching effortless.
如果打算使用示例程序，那么需要修改这些定义，以匹配您的模式修改。
If you intend to use the sample programs, modify these definitions to match your schema changes.
这对于验证输入或分隔与模式匹配的文档很有用。
This is useful for validating input or for splitting a document where the pattern matches.
应用推荐