我想从HTML像这部分的代码的所有CSS链接:问题使用RegexKitLite
<link href="http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/default.css" rel="stylesheet" type="text/css" />
<link type="text/css" rel="stylesheet" href="http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/datepicker.css"/>
<link href="http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/carousel.css" rel="stylesheet" type="text/css" />
<link href="http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/langoverlay_en-us.css" rel="stylesheet" type="text/css" />
这里是我的代码:
-(void)matchCSS:(NSString *)html{
NSString *regexString = @"href=\".*\.css\"";
NSArray *matchArray = NULL;
matchArray = [html componentsMatchedByRegex:regexString];
NSLog(@"matchArray: %@", matchArray);
}
但是,我得到了什么有点疯狂:
"href=\"http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/default.css\" rel=\"stylesheet\" type=\"text/css\"",
"href=\"http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/datepicker.css\"",
"href=\"http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/carousel.css\" rel=\"stylesheet\" type=\"text/css\"",
"href=\"http://media.ticketmaster.com/en-us/css/1c84b57773d8f594407f0b0b78d67aba/tm/langoverlay_en-us.css\" rel=\"stylesheet\" type=\"text/css\""
这些不是纯粹的链接,其中一些包含一些我不想要的其他标签。我没有看到我的RE有什么问题。任何建议?
当正则表达式引擎具有特定含义时,反斜杠应该被转义;在你的情况下,正则表达式'@“href = \”。* \。css \“”'应该写成'@“href = \”。* \\。css \“”'。要检查如何在Objective-c中编写正则表达式,可以使用以下工具:http://regexkit.sourceforge.net/RegexKitLite/index.html#RegexEscapeTool。 – kiamlaluno 2010-06-27 01:11:11
这是一个好点! – zsong 2010-06-27 04:18:43