Review the correct regular expression syntax located in the topic "regular Expressions."
复查位于主题“正则表达式”中的正确正则表达式语法。
Two forms of regular expression syntax are used with the GNU grep program found on most Linux systems: basic and extended.
大部分Linux系统中的gnu程序可以使用两种常规表达式语法：basic和extended。
Front-end localization deals with everything which the user sees - error messages, and the regular expression syntax itself.
前端本地化处理所有用户要见的东西-错误信息，以及自己的正则表达式语法。
Sed has a limited set of commands, but these combined with regular expression syntax and the hold buffer make for some amazing capabilities.
Sed提供了一组有限的命令，但是这些命令结合了正则表达式语法和保持缓存，因而实现了某些非常令人吃惊的功能。
New functions include regular expression syntax for pattern matching, new date functions such as current date, and new numeric functions such as floor, ceiling and round.
新的功能包括用于模式匹配的正则表达式语法，新的日期函数比如当前日期，还有新的算术函数比如floor,ceiling和round。
Sed USES regular expression syntax to search for and replace text selectively in the pattern space as well as to control which lines of text should be operated on by sets of editing commands.
Sed使用正则表达式语法在模式空间中搜索并有选择地替换文本，以及决定对哪些文本行应用编辑命令。
However, the exact syntax of the regular expression is not that important; regular expressions can be written in many ways.
然而，正则表达式的确切语法并不重要；正则表达式可以采用很多方法来编写。
Let's ignore the more complex options and just look at the basic syntax of a regular expression. Here are some examples.
让我们忽略较复杂的选项，只关注正则表达式的基本语法。
You would again be using syntax match to define an identifier for this regular expression and link to Error.
再次使用syntaxmatch为一个正则表达式定义标识符，然后把标识符与Error关联起来。
You can also construct a regular expression that treats every character as a literal, but that's not really a "syntax"!
你同样可以构造一个正则表达式，将每个字符作为字面意思，但这并不是真正的“语法”！
This error generally occurs when a regular expression has been included in a search string but the syntax for the regular expression contains errors.
当正则表达式已包括在搜索字符串中而该正则表达式的语法包含错误时，通常会发生此错误。
This error generally occurs when a regular expression has been included in a search string but the syntax for the regular expression contains errors.
当正则表达式已包括在搜索字符串中而该正则表达式的语法包含错误时，通常会发生此错误。
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