我的正则表现很差,让我失望所以这里的帮助会很棒。
我想做的就是返回推文中出现的所有链接(只是一个字符串) - 例如:
"Great summary http://mytest.com/blog/post.html (#test)
"http://mytest.com/blog/post.html (#test)
"post: http://mytest.com/blog/post.html"
它还应该支持多个链接,例如:
"read http://mytest.com/blog/post.html and http://mytest.com/blog/post_two.html"
任何帮助都会很棒!
由于
本
答案 0 :(得分:2)
试试这个:
/\bhttps?:\/\/\S+\b/
更新
捕捉以“www。”开头的链接。也是(没有“http://”前缀),你可以试试这个:
/\b(?:https?:\/\/|www\.)\S+\b/
答案 1 :(得分:1)
以下是我编写的解析推文Feed的网站的代码段。它解析链接,哈希标记和Twitter用户名。到目前为止,它运作良好。我知道这不是Ruby,但正则表达式应该会有所帮助。
if(tweetStream[i] != null)
{
var str = tweetStream[i].Text;
var re = new Regex(@"http(s)?:\/\/\S+");
MatchCollection mc = re.Matches(tweetStream[i].Text);
foreach (Match m in mc)
{
str = str.Replace(m.Value, "<a href='" + m.Value + "' target='_blank'>" + m.Value + "</a>");
}
re = new Regex(@"(@)(\w+)");
mc = re.Matches(tweetStream[i].Text);
foreach (Match m in mc)
{
str = str.Replace(m.Value, "<a href='http://twitter.com/" + m.Value.Replace("@",string.Empty) + "' target='_blank'>" + m.Value + "</a>");
}
re = new Regex(@"(#)(\w+)");
mc = re.Matches(tweetStream[i].Text);
foreach (Match m in mc)
{
str = str.Replace(m.Value, "<a href='http://twitter.com/#search?q=" + m.Value.Replace("#", "%23") + "' target='_blank'>" + m.Value + "</a>");
}
tweets += string1 + "<div>" + str + "</div>" + string2;
}
答案 2 :(得分:1)
找到这个here
^(?#Protocol)(?:(?:ht|f)tp(?:s?)\:\/\/|~/|/)?(?#Username:Password)(?:\w+:\w+@)?(?#Subdomains)(?:(?:[-\w]+\.)+(?#TopLevel Domains)(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|museum|travel|[a-z]{2}))(?#Port)(?::[\d]{1,5})?(?#Directories)(?:(?:(?:/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|/)+|\?|#)?(?#Query)(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*(?#Anchor)(?:#(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)?$
答案 3 :(得分:0)
我意识到这个问题来自2009年,但Twitter的API现在返回URL(并扩展了t.co链接)。