Question

字符串=

"A Borrower (or the Parent) may not deliver a Request if as a result of the proposed Utility:
[15] or more Term Loans [(other than Inc Loans)] would be outstanding; [or]
[10] or more Utilisations would be outstanding[; or
[5 ] or more Loans would be outstanding]."

Output = "[15] or more Term Loans [(other than Inc Loans)] would be outstanding;"

我正在尝试的正则表达式模式：

'(.*other than Inc Loans.*)'

这将返回整个STRING，我只需要一行。不知道正则表达式在做什么错

Asp.net中的代码

string regularExpressionPattern = RegExPattern.ToString();
string inputText = FinalPara.ToString();
Regex re = new Regex(regularExpressionPattern);
foreach (Match m in re.Matches(FinalPara))
{
    Response.Write("Regex Values is :" + m.Groups[1].Value.ToString());
}

Answer 1

您可以使用CR和LF分割文本，而仅使用LINQ和String.Contains仅捕获包含所需文本值的文本：

var results = inputText.Split(new[] {"\r", "\n"}, StringSplitOptions.RemoveEmptyEntries).Where(x => x.Contains("other than Inc Loans"));

要获得第一个“匹配”，请使用.FirstOrDefault()：

var result = inputText.Split(new[] {"\r", "\n"}, StringSplitOptions.RemoveEmptyEntries).Where(x => x.Contains("other than Inc Loans")).FirstOrDefault();

请参见C# demo online。

详细信息

.Split(new[] {"\r", "\n"}, StringSplitOptions.RemoveEmptyEntries)-分成几行
.Where(x => x.Contains("other than Inc Loans"))-提取包含特定文本的项目。

如果您打算保留正则表达式，请确保您不匹配LF和CR字符。模式应看起来像[^\r\n]*other than Inc Loans[^\r\n]*（其中[^\r\n]匹配除CR和LF字符以外的任何字符），并在获得匹配项后，通过m.Value访问匹配值。

使用正则表达式提取包含搜索字符串的行

1 个答案: