正则表达式 +图案中包含一个空格

发布于 2024-12-19 10:38:15 字数 350 浏览 2 评论 0原文

我试图弄清楚如何编写一个模式来匹配以下内容：“3Z 5Z”。其中的数字可能会有所不同，但 Z 是恒定的。我遇到的问题是尝试包含空格...目前我将此作为我的模式

 pattern = @"\b*Z\s*Z\b";

“*”代表“Z”之前数字的通配符，但它似乎不想使用其中的空间。例如，我可以成功使用以下模式来匹配相同的内容，而无需空格（即 3Z5Z），

pattern = @"\b*Z*Z\b";

我正在 .NET 4.0 (C#) 中编写此程序。非常感谢任何帮助！

编辑：此模式是较大字符串的一部分，例如： 3Z 10Z 锁 425"

原文

I'm trying to figure out how to write a pattern to match to the following: "3Z 5Z". The numbers in this can vary, but the Z's are constant. The issue I'm having is trying to include the white space... Currently I have this as my pattern

 pattern = @"\b*Z\s*Z\b";

The '*' represent the wildcard for the number preceding the "Z", but it doesn't seem to want to work with the space in it. For example, I can use the following pattern successfully for matching to the same thing without the space (i.e. 3Z5Z)

pattern = @"\b*Z*Z\b";

I am writing this program in .NET 4.0 (C#). Any help is much appreciated!

EDIT: This pattern is part of a larger string, for example:
3Z 10Z lock 425"

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夢归不見 2024-12-26 10:38:16

试试这个：

pattern = @"\b\d+Z\s+\d+Z\b";

解释：

"
\b    # Assert position at a word boundary
\d    # Match a single digit 0..9
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
Z     # Match the character “Z” literally
\s    # Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
\d    # Match a single digit 0..9
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
Z     # Match the character “Z” literally
\b    # Assert position at a word boundary
"

顺便说一句：

\b*

应该抛出异常。 \b 是单词锚点。你无法量化它。

Try this:

pattern = @"\b\d+Z\s+\d+Z\b";

Explanation:

"
\b    # Assert position at a word boundary
\d    # Match a single digit 0..9
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
Z     # Match the character “Z” literally
\s    # Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
\d    # Match a single digit 0..9
   +     # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
Z     # Match the character “Z” literally
\b    # Assert position at a word boundary
"

By the way:

\b*

Should throw an exception. \b is a word anchor. You can't quantify it.

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野却迷人 2024-12-26 10:38:16

试试这个代码。

using System;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
  class Program
  {
    static void Main(string[] args)
    {
      string txt="3Z 5Z";

      string re1="(\\d+)";  // Integer Number 1
      string re2="(Z)"; // Any Single Character 1
      string re3="( )"; // Any Single Character 2
      string re4="(\\d+)";  // Integer Number 2
      string re5="(Z)"; // Any Single Character 3

      Regex r = new Regex(re1+re2+re3+re4+re5,RegexOptions.IgnoreCase|RegexOptions.Singleline);
      Match m = r.Match(txt);
      if (m.Success)
      {
            String int1=m.Groups[1].ToString();
            String c1=m.Groups[2].ToString();
            String c2=m.Groups[3].ToString();
            String int2=m.Groups[4].ToString();
            String c3=m.Groups[5].ToString();
            Console.Write("("+int1.ToString()+")"+"("+c1.ToString()+")"+"("+c2.ToString()+")"+"("+int2.ToString()+")"+"("+c3.ToString()+")"+"\n");
      }
      Console.ReadLine();
    }
  }
}

Try this code.

using System;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
  class Program
  {
    static void Main(string[] args)
    {
      string txt="3Z 5Z";

      string re1="(\\d+)";  // Integer Number 1
      string re2="(Z)"; // Any Single Character 1
      string re3="( )"; // Any Single Character 2
      string re4="(\\d+)";  // Integer Number 2
      string re5="(Z)"; // Any Single Character 3

      Regex r = new Regex(re1+re2+re3+re4+re5,RegexOptions.IgnoreCase|RegexOptions.Singleline);
      Match m = r.Match(txt);
      if (m.Success)
      {
            String int1=m.Groups[1].ToString();
            String c1=m.Groups[2].ToString();
            String c2=m.Groups[3].ToString();
            String int2=m.Groups[4].ToString();
            String c3=m.Groups[5].ToString();
            Console.Write("("+int1.ToString()+")"+"("+c1.ToString()+")"+"("+c2.ToString()+")"+"("+int2.ToString()+")"+"("+c3.ToString()+")"+"\n");
      }
      Console.ReadLine();
    }
  }
}

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