c# - 如何使用维基百科中的超链接以编程方式制作 html 文本？

Question

我有一个字符串数组，我必须将超链接添加到数组中的项目和给定字符串的每个匹配项。 主要类似于维基百科。

类似于:

private static string AddHyperlinkToEveryMatchOfEveryItemInArrayAndString(string p, string[] arrayofstrings)

{            }

string p = "The Domesday Book records the manor of Greenwich as held by Bishop Odo of Bayeux; his lands were seized by the crown in 1082. A royal palace, or hunting lodge, has existed here since before 1300, when Edward I is known to have made offerings at the chapel of the Virgin Mary.";

arrayofstrings = {"Domesday book" , "Odo of Bayeux" , "Edward"};

returned string = @"The <a href = "#domesday book">Domesday Book</a> records the manor of Greenwich as held by Bishop <a href = "#odo of bayeux">Odo of Bayeux</a>; his lands were seized by the crown in 1082. A royal palace, or hunting lodge, has existed here since before 1300, when <a href = "#edward">Edward<a/> I is known to have made offerings at the chapel of the Virgin Mary.";

这样做的最佳方式是什么？

Answer 1

你可能很容易这样做:

foreach(string page in arrayofstrings)
{
    p = Regex.Replace(
        p, 
        page, 
        "<a href = \"#" + page.ToLower() + "\">$0</a>", 
        RegexOptions.IgnoreCase
    );
}
return p;

如果 anchor 的大小写可以和匹配的文本一样，你甚至可以去掉for循环:

return Regex.Replace(
    p,
    String.Join("|", arrayofstrings),
    "<a href = \"#$0\">$0</a>",
    RegexOptions.IgnoreCase
);

现在模式变成了 Domesday book|Odo of Bayeux|Edward，不管大小写都会找到匹配项，找到的任何内容都会放回链接文本和 href 属性。