language-agnostic - 如何从字符串创建一个 SEO 友好的破折号分隔的 url？

Question

取一个字符串，例如:

In C#: How do I add "Quotes" around string in a comma delimited list of strings?

并将其转换为:

in-c-how-do-i-add-quotes-around-string-in-a-comma-delimited-list-of-strings

要求:

• 用破折号分隔每个单词并删除所有标点符号(考虑到并非所有单词都用空格分隔。)
• 函数接受最大长度，并获取小于该最大长度的所有标记。示例:ToSeoFriendly("hello world hello world", 14) 返回 "hello-world"
• 所有单词都转换为小写。

另外，是否应该有最小长度？

Answer 1

这是我在 C# 中的解决方案

private string ToSeoFriendly(string title, int maxLength) {
    var match = Regex.Match(title.ToLower(), "[\\w]+");
    StringBuilder result = new StringBuilder("");
    bool maxLengthHit = false;
    while (match.Success && !maxLengthHit) {
        if (result.Length + match.Value.Length <= maxLength) {
            result.Append(match.Value + "-");
        } else {
            maxLengthHit = true;
            // Handle a situation where there is only one word and it is greater than the max length.
            if (result.Length == 0) result.Append(match.Value.Substring(0, maxLength));
        }
        match = match.NextMatch();
    }
    // Remove trailing '-'
    if (result[result.Length - 1] == '-') result.Remove(result.Length - 1, 1);
    return result.ToString();
}