string replace using a List<string>

Question

I have a List of words I want to ignore like this one :

public List<String> ignoreList = new List<String>()
        {
            "North",
            "South",
            "East",
            "West"
        };

For a given string, say "14th Avenue North" I want to be able to remove the "North" part, so basically a function that would return "14th Avenue " when called.

我觉得有一些东西我可以用LINQ,正则表达式和替换混合,但我只是想不出来.

更大的图景是,我正在尝试编写一个地址匹配算法.在使用Levenshtein算法评估相似性之前,我想过滤掉"Street","North","Boulevard"等词.

Answer 1

这个怎么样:

string.Join(" ", text.Split().Where(w => !ignoreList.Contains(w)));

或.Net 3:

string.Join(" ", text.Split().Where(w => !ignoreList.Contains(w)).ToArray());

请注意,此方法将字符串拆分为单个单词,因此它只删除整个单词.这样,它会与地址一样正常工作,Northampton Way #123即string.Replace无法处理.

Answer 2

Regex r = new Regex(string.Join("|", ignoreList.Select(s => Regex.Escape(s)).ToArray()));
string s = "14th Avenue North";
s = r.Replace(s, string.Empty);

Answer 3

这样的事情应该工作：

string FilterAllValuesFromIgnoreList(string someStringToFilter)
{
  return ignoreList.Aggregate(someStringToFilter, (str, filter)=>str.Replace(filter, ""));
}