Example 2: Regular expressions.
示例2：正则表达式。
Both lines use regular expressions.
两行都使用了正则表达式。
Regular expressions are complicated.
规则表达式很复杂。
Traverse it with regular expressions
用正则表达式捕捉内容
Make the most of regular expressions.
最有效地利用正则表达式。
This example USES regular expressions.
这个例子使用了正则表达式。
Regular expressions are not new to SQL.
正则表达式对SQL 来说并非新事物。
Both thus constitute regular expressions.
它们都构成了正则表达式。
Regular expressions for pattern matching.
用于模式匹配的正则表达式。
Support for regular expressions in queries.
支持查询中的正则表达式。
But now you know the ABCs of regular expressions.
但是您现在已了解了正则表达式的基本知识。
You use regular expressions to implement the mask.
您要使用正则表达式来实现该蒙版。
Many UNIX commands use regular expressions as arguments.
大量UNIX命令使用正则表达式作为参数。
This provides a good introduction to regular expressions.
这篇文章对正则表达式进行了很好的介绍。
Allowing for this is not a problem with regular expressions.
实现这一点对于正则表达式而言并不是问题。
But mask strings are not as flexible as regular expressions.
但是掩码字符串不如正则表达式那么灵活。
Many books have been written just about regular expressions.
有大量书籍专门讲述正则表达式。
You can describe all of these formats with regular expressions.
所有这些格式都可以用正则表达式来描述。
Regular expressions have their roots in computer language theory.
正则表达式在计算机语言理论中有很长的历史。
Concatenating two regular expressions creates a longer expression.
连接两个正则表达式创建一个更长的正则表达式。
These rewriting rules demonstrate the power of regular expressions.
这些重写规则表明了正则表达式的功能。
Again, it is trivial to parse those files with regular expressions.
用正则表达式解析这些文件同样没有什么大不了的。
This allows hexadecimal values in regular expressions when parsing.
这允许在解析时在正则表达式中使用十六进制值。
For more detailed information on regular expressions, see Resources.
有关正则表达式更详细的信息，请参阅参考资料。
At the command line, you'll find many ways to use regular expressions.
在命令行中，可以采用许多方法使用正则表达式。
Basic regular expressions are easy to write, but somewhat hard to read.
基础的正则表达式是非常容易书写的，但难以读懂。
This is further explained in a later discussion of regular expressions.
在以后的规则表达式讨论中会进一步说明这个话题。
The logic becomes trivial when you put regular expressions into action.
使用正则表达式，逻辑就变得简单了。
Of course, regular expressions are limited to strict string comparisons.
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.
当然，正则表达式被限定为严格的字符串比较。
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