使用Linq搜索字符串列表 [英] Searching in a list of string using Linq

问题描述

大家好，

我有一个字符串列表.我必须以这种方式匹配列表中的字符数组，使得列表中的字符串必须仅包含数组中的字符.

例如:如果我的字符数组(下面代码中的_currentLetters字符串)是abdfuwz.那么从列表中选择的字符串的可能列表将是错误的，DAB等.

以下是我拥有的一种可能的解决方案:

Hello everyone,

I have a list of strings. I have to match a character array in the list in such a way that the strings in list must contain only characters in the array.

For ex: if my character array (_currentLetters string in the code below) is abdfuwz. Then the possible list of selected strings from the list would be bad, dab etc.

Below is one possible solution I have:

public string[] GetPossibleWords()
{
    wordsList.Clear();

    IEnumerable<string> words = from w in _list.WordListCollection
                                where (w.Length > 1 &&
                                        w.IndexOfAny(_currentLetters.ToArray()) >= 0 &&
                                        w.Length <= _currentLetters.Length)
                                select w;

    // Check the sorted array of current letters. If the string
    // is a substring of this, then the word is in
    foreach (string s in words)
    {
        char[] toMatch = s.ToCharArray();
        Array.Sort(toMatch);
        string m = new string(toMatch);
        if (_currentLetters.Contains(m))
        {
            wordsList.Add(s);
        }
    }

    return wordsList.ToArray();
}

如您所见，我正在单词列表中搜索单词.获得单词列表后，我将再次使用找到的所有单词进行迭代，并确保找到的单词是字符数组的子字符串.此字符数组是字符的排序数组.我不确定这是否是实现我的目标的最佳方法.有没有更好的办法?我可以使用Linq编写整个代码吗?

谢谢

As you can see, I am searching words in my list of words. Once I get the word list, I am iterating again with all the words we found and making sure that the found word is a substring of the character array. This character array is a sorted array of characters. I am not sure if this is the best way to achieve my goal. Is there a better way? Can I write the entire code using Linq?

Thanks

推荐答案

最好像下面这样使用RegEx，

Hi,

Its better to use RegEx as like the below one,

class Program
    {
        static void Main(string[] args)
        {

            List<string> listOfPossibleStrings = GetStringsWithPossibleChars("abdfuwz", 
                new List<string>() 
                { 
                    "jagan", 
                    "bad", 
                    "dad", 
                    "well", 
                    "test"
                });

        }

        private static List<string> GetStringsWithPossibleChars(string pattern,List<string> lstStrings)
        {
            var newList = from str in lstStrings 
                          where (new Regex(@"^[\s\d" + pattern + "]*

"，RegexOptions.Singleline).IsMatch(str)== 选择 str; 返回(列表< string>)newList; } }

", RegexOptions.Singleline).IsMatch(str)== true) select str; return (List<string>)newList; } }

这篇关于使用Linq搜索字符串列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！