然后，您就可以单击 “查找内容”框右侧的右箭头按钮以显示正则搜索表达式列表。
Then you can click the right-arrow button to the right of the Find What box to display a list of regular search expressions.
这就产生了一个我们未考虑到的情况，用户可能因为使用Google的搜索表达式而造成他们在我们的OPAC系统中没有检索结果。
This revealed a problem we had not expected: users were possibly getting zero results in our OPAC because they were using Google search syntax!
全文搜索表达式在sql上下文中表达，相关的XML文档在XQuery上下文中使用db 2 - fn：sqlquery输入函数进行处理。
The full-text search expression is expressed in an SQL context, and the relevant XML documents are processed in the XQuery context using the db2-fn: sqlquery input function.
基本搜索允许您使用+和-，但不能使用布尔运算符或更复杂的表达式。
Basic Search allows you to use + and - but you can not use Boolean operators or more complex expressions.
允许用户使用定制排序、过滤和查询表达式解析扩展搜索行为。
Allows users to extend the searching behavior using custom sorting, filtering, and query expression parsing.
接下来的代码遍历列表，把搜索查询的正则表达式应用于每个电影的标题。
The code then iterates through the list and applies a regular expression of the search query to each movie title.
无论每个当前词查询的内容为何，都需要一次或多次为字符后接的字符块创建用于搜索的正则表达式。
Regardless of the content of each piece of the current word query, create a regular expression that searches for that chunk followed by a word character one or more times.
但是该编辑器在许多方面都是保持基本的功能，例如，在搜索对话框中甚至不使用正则表达式。
But the editor remains basic in many ways -- not even using regular expressions in the search dialog, for example.
您可以限制搜索的类别，还可以使用布尔表达式和模式匹配来进一步精化搜索。
You can limit the categories that are searched, and you can use Boolean expressions and pattern matching to further refine the search.
正则表达式不一定包含通配符，但通配符可以使正则表达式在搜索模式和处理文件时发挥更大的作用。
A regular expression doesn't have to contain wildcards, but wildcards can make regular expressions useful for searching for patterns and manipulating files.
这个表达式限制了数据库找到相关结果所必须搜索的分支的数量。
The expression limits the number of branches that the database has to search to find the relevant elements.
现有方法可能涉及根据词的词干或变音位构建正则表达式，以及其他搜索词的语言派生词。
Existing approaches might involve building a regular expression based on stems of a word, or metaphone, and other linguistic derivatives of a search term.
事实上，如前例中所示，替代表达式“%v”在VMM的搜索筛选器中不受支持。
In fact, as shown in the previous example, replacement expression "% v" is not supported in a search filter in the VMM.
我们可以看到所有前导空格或后置空格已被删除，然后+号被转义以删除用正则表达式搜索的潜在干扰。
We can see that any leading or trailing Spaces are removed, then the + signs are escaped to remove potential interference with the regular-expression search.
在本文中，我们将介绍如何构建平面文件数据库，如何创建正则表达式，以及如何进行基本的搜索和显示。
In this article, we will cover building the flat-file database, regular-expression creation, and basic search and display.
从XML数据结构到搜索引擎的映射是使用XPath表达式来完成。
The mapping maps from the XML data structure using xpath expressions into the search engine.
在本例中，您使用了更为强大的方式：PHP的preg_replace，它接受正则表达式作为其搜索关键词。
In this case, you use something a bit more powerful: PHP's preg_replace, which takes a regular expression as its search term.
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.
然后，find函数搜索剧集列表以便使用与标题和摘要匹配的简单正则表达式来查找匹配项。
The find function then searches the episode list to find matches using a simple regular expression match on the title and the summary.
规则表达式搜索满足(尽可能复杂)的模式。
Regular expression searches match on (possibly complex) patterns.
以下是一些使用grep作为搜索工具的正则表达式示例。
Here are a few examples of regular expressions using grep as the search tool.
当然，您可以使用常规表达式或String搜索，但所需的工作量太大。
Sure, you could use regular expressions or String searches, but that would be too much work.
对于粗粒度和细粒度的查询，您可以在QueryAPI中使用XPath表达式来执行搜索。
You can use XPath expressions in the Query API to perform searches for coarse - and fine-grained queries.
本系列中的文章允许您将正则表达式的功能与grep工具结合使用，创建自定义LDAP搜索功能。
The articles in this series allow you to combine the power of regular expressions with the grep tool to create your own custom LDAP search capability.
本文允许将正则表达式的强大功能与grep工具结合使用来创建定制的LDAP搜索功能。
This article allows you to combine the power of regular expressions with the grep tool to create your own custom LDAP search capability.
Perl的tr语句具有不同的语法，它更像sed的搜索和替换表达式。
Perl's tr statement has a slightly different syntax, more like sed's search and replace expressions.
这说明，该函数必须在一个涉及比较操作并且引用了索引扩展hash _ index的搜索方法“equals”的表达式中使用。
It says that the function must be used in an expression involving the comparison operation and that the search method "equals" of the index extension hash_index is referred to.
基于搜索字符串寻找结果或者规则表达式。
Search for a finding based on a search string, or a regular expression.
要实现这一点，可以通过搜索XPath表达式 /output/Transfer/Amount，从而查找您想要的字段的标记。
To accomplish this, find the tag for the field that you want by searching for the XPath expression /output/Transfer/Amount.
我们不能使用fgrep来搜索使用模式的正则表达式。
You can't use fgrep to search for regular expressions with patterns.
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