从文本中删除问题 [英] Removing questions from text

问题描述

删除以？结尾的句子需要一些帮助或者用什么都替换它。

need some assistance with removing sentences that ends with "?" or replacing it with nothing.

推荐答案

发布这个解决方案，因为我认为之前的任何解决方案都不起作用。



使用此输入

Posting this solution because I don't think any of the previous solutions actually work.

Using this input

var sampleText =
    "Here are some sentences. Is this a question? It certainly is! What other ways can end a sentence? A colon perhaps:   or a semi-colon; Is this a question? Duplicated";

您可以使用string.Split（）分隔句子，然后将相同的数组输入另一个Split，以确定每个句子使用哪个分隔符

You can use string.Split() to separate the sentences, then feed that same array into another Split to determine which delimiter was used for each sentence

//Determine the individual sentences
var x = sampleText.Split(new[] { '?', '!', '.', ';', ':' }, StringSplitOptions.RemoveEmptyEntries);
//You may need to add further punctuation

//Split the text again using the sentences to determine which delimiter was used
var y = sampleText.Split(x, StringSplitOptions.RemoveEmptyEntries);

//Rebuild the paragraph ignoring any sentences terminated with question marks
var newText = new StringBuilder("");
for(var i = 0; i < y.Length; i++)
{
    if (y[i] != "?")
    {
        newText.Append(x[i]);
        newText.Append(y[i]);
    }
}

请注意，在我的sampleText中，我没有正确终止最后一句 - 除非你添加

Note in my sampleText I didn't terminate the last sentence properly - this will cause an exception unless you add

if (x.Length > y.Length)
    newText.Append(x[x.Length - 1]);

您的评论

Your comment

引用：

我想删除整个问题行亲爱的。

i want to remove the whole question line dear.

可能暗示这些东西是文件中的单独行（为了获得准确的答案，你应该注意你怎么说出你的问题）。



在这种情况下，我使用了包含

might imply that these things are individual lines in a file (To get accurate answers you should take care in how you word your questions).

In this case I used a sample file containing

This is a statement.
This is another statement!
Is this is a question?
Are you sure that is a question?
That was a question

在这种情况下这是有效的（使用Linq）

In which case this works (uses Linq)

var f = File.ReadAllLines(@"C:\Temp\Test.txt");
f =  f.Where(p => (!string.IsNullOrEmpty(p) && !p.Contains("?"))).ToArray();

如果我转储数组的内容 f 到控制台窗口我得到

If I dump the contents of the array f to the console window I get

This is a statement.
This is another statement!
That was a question

如果您使用的是早期版本的C＃而无法使用Linq，则可以使用

If you are using an earlier version of C# and cannot use Linq then this works instead

var f1 = new List<string>();
foreach (var s in f)
{
    if (!string.IsNullOrEmpty(s) && !s.Contains("?"))
        f1.Add(s);
}
f = f1.ToArray();

使用正则表达式： 30分钟正则表达式教程 [ ^ ]

Use Regex : The 30 Minute Regex Tutorial[^]

.+\?

查看查找字符串以开头并以其结尾 ..它可能对您有帮助。

Check out find string starts with and ends with.. it might help you.

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