软件包包含perl兼容的正规表达式库.这些在执行正规表达式模式匹配时用与Perl 5 同样的语法-Package contains the perl-compatible regular expression library. Those in the implementation of regular expression pattern matching with Perl 5 to use the same grammar

PCRE 开源的Regular Expression 源代码,Perl 流派-Regular Expression of the open source PCRE source code, Perl Schools