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ASP.NET 中的 [Regex]Greta不支持“Named Groups”特性
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-11-03 浏览: 110 ::
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发送时间: 2004年9月21日 2:59
收件人: Yun Zheng; Ashish Aggarwal
主题: RE: greta gripe:for groupname syntaxGreta doesn’t support named groups; instead, it uses the more standard approach of numbering them. So you should check your regex to "^(\\w+):(\\w+)"Then you access the first group as capture number 1 and the second as capture number 2, as in Perl, etc. As far as I know, named captures are a peculiarity of the .NET Regex engine. From: Yun Zheng
Sent: Sunday, September 19, 2004 9:27 PM
To: Ashish Aggarwal; Chris Quirk
Subject: greta gripe:for groupname syntax Hi!I'm using greta now.It's very perfect,but I have a question:In C#,I can do this:[C#]
Regex r = new Regex("^(?\\w+):(?\\w+)");
Match m = r.Match("Section1:119900");But, in VC7+greta-2[1].6.4,I run this codes: std::string strDest("Section1:119900");
regex::rpattern pat("^(?\\w+):(?\\w+)",
regex::NOCASE|regex::GLOBAL|regex::EXTENDED);
regex::match_results::backref_type br
= pat.match( strDest, results );when run to construct rpattern,I get bad_regexpr( "bad extension sequence" ) exception. How does Greta support groupname syntax? Thanks!Yun Zheng
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