copying

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

PCRE is a library of functions to support regular expressions whose syntax
and semantics are as close as possible to those of the Perl 5 language.

This is JavaScriptCore's variant of the PCRE library. While this library
started out as a copy of PCRE, many of the features of PCRE have been
removed.

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