Note that you don't have to use quotes around patterns, but you can, and indeed you must if your pattern happens to contain white space. Quotes are fine, but remember not to use delimiters on your patterns—this is not PHP. Nov 02, · 7 Comments [ ] 原文作者是Jan Goyvaerts(Regex Guru),原页面链接是Detecting URLs in a Block of Text, [ ] Pingback by [译]从文本中析取有效URL链接 | 我爱正则表达式 — Friday, 7 November @ thank you, I was using this. Regular Expressions - User Guide. A Regular Expression is the term used to describe a codified method of searching invented, or defined, by the American mathematician Stephen Kleene.. The syntax (language format) described on this page is compliant with extended regular expressions (EREs) defined in IEEE POSIX (Section ).EREs are now commonly supported by Apache, PERL, .
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Regular Expressions (RegEx) Tutorial #7 - Special Characters, time: 7:36
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