pcre

If your system lacks PCRE , the bundled code makes the build quick and easy .

如果系统缺少PCRE，打包后的代码可以使构建变得简单快捷。

Here , I focus on the PCRE features .

在这里，我主要介绍PCRE功能。

This lets you easily see what version of Snort and PCRE you 're running .

这使您可以轻而易举地看到正在运行的Snort和PCRE的版本。

Their PCRE replacements are also shown .

同时展示了它们的PCRE代替函数。

Most packages like Snort and PCRE will want to write to protected directories that a typical user can 't access .

Snort和PCRE等大多数软件包都需要写入受保护的目录，而普通用户通常无法访问这样的目录。

PCRE : Download a free copy of PCRE .

PCRE：下载PCRE的免费副本。

However , if your system already has PCRE , you can choose to use it by specifying the & with-pcre = system option .

然而，如果系统已经有了PCRE，那么可以通过指定&with-pcre=system选项来使用它。

Most programs , tools , and utilities ( PCRE and Snort included ) let you perform both these steps with one command : make install .

大多数程序、工具和实用工具（包括PCRE和Snort）都允许您通过一个命令完成所有这些步骤：makeinstall。

The PHP build process depends on many utilities and development libraries , such as Flex , Bison , libxml , and PCRE .

PHP构建过程依赖于许多实用程序和开发库，例如Flex、Bison、libxml和PCRE。

After installing PCRE , you should know what 's next : running make install , again either as the root user or with the sudo command .

在安装了PCRE之后，下一步就是：再次运行makeinstall，同样以root用户的身份或使用sudo命令运行。

By and large , the latter interface is preferred , because PCRE is much more powerful than the POSIX implementation , offering all the operators found in Perl .

基本上，推荐使用第二个接口，因为PCRE比POSIX实现更加强大，可以提供能在Perl中找到的所有操作符。

As with other PCRE implementations , you can refer to a subpattern match from within the replacement , allowing an operation to be self-referential .

正如其他PCRE实现一样，您可以从替换中引用子模式匹配，允许操作进行自引用。

You can use this tool to familiarize yourself with the Perl-compatible regular expression ( PCRE ) library and to debug or test regexps that you build with it .

可以使用此工具来熟悉兼容Perl的正则表达式（Perl-compatibleregularexpression，PCRE）库和调试或测试使用其构建的regexp。