在XML文件中使用C# Regex

问题描述 投票：-2回答：1

我有一个XML文件，其中多次包含以下字符串。

<Name Area="" Title="@(String) - @(I am) - @(looking) - @(for)" ...</Name>

我想做的是用regex搜索这些字符串，剪切掉@()，然后把剩下的保存在一个新的Textfile中。我已经找到了与该字符串相匹配的模式，并计算了该模式与该字符串相匹配的频率，但我在选择和处理它们时失败了。

我是在Windows Form-App中做的。

EDIT.Morten Bork：我在一个Windows Form-App中做了所有这些工作。

Morten Bork:

到目前为止，我唯一能做的就是让用户选择要处理的文件 以及保存新文件的位置。而且它正在这样做。我只是在使用regex的思路上失败了。

    using System;
    using System.IO;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using System.Diagnostics;
    using System.Text.RegularExpressions;

    namespace Movitool
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }

            public static class Globals
            {
                public static string AlrFile = string.Empty;
                public static string AlrFileNeu = string.Empty;
            }

            private void btnPfadAuswahl_Click(object sender, EventArgs e)
            {

                using (OpenFileDialog fileDialog1 = new OpenFileDialog())
                {
                    fileDialog1.Filter = "movalr files (*.movalr)|*.movalr";
                    fileDialog1.RestoreDirectory = true;
                    fileDialog1.InitialDirectory = @"Dokumente\";

                    if (fileDialog1.ShowDialog() == DialogResult.OK)
                    {
                        Globals.AlrFile = fileDialog1.FileName;
                        txtPfad.Text = Globals.AlrFile; 
                    }
                }
            }

            private void btnStartAlr_Click(object sender, EventArgs e)
            {
                string pattern = @"@(.*?)";
                Regex rgx = new Regex(pattern);

                using (SaveFileDialog fileDialog2 = new SaveFileDialog())
                {
                    fileDialog2.InitialDirectory = @"Dokumente";
                    fileDialog2.Title = "Save File";
                    fileDialog2.Filter = "txt files (*.txt)|*.txt";

                    if(fileDialog2.ShowDialog() == DialogResult.OK)
                    {
                        Globals.AlrFileNeu = fileDialog2.FileName;
                    }
                }

                foreach(string Line in File.ReadLines(Globals.AlrFile))                     
                {
                    File.AppendAllText(Globals.AlrFileNeu, Line + Environment.NewLine);     
                }

                lblStatus.Text = "Fertig!";
            }
        }
    }
c# regex xml wpf
1个回答
0
投票

尝试以下。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.txt";
        static void Main(string[] args)
        {
            string input = File.ReadAllText(FILENAME);

            string pattern = @"(?'start'@\()(?'middle'[^\)]+)(?'end'\))";

            string output = Regex.Replace(input, pattern, "${middle}");

        }
    }
}

这里是使用你的数据输出 

<?xml version="1.0" encoding="ISO-8859-1" ?>
<Alarms>
<AlarmList>
<Alarm>
<Name Device="" Variable="" Area="1" ThresholdExclusive="0" Enabled="1" OnQualityGood="1" VariableDuration="0" EnableVariable="" EnableDispMsg="" Hysteresis="0" EventsCache="1024"></Name>
<ThresholdList>
<Threshold>
<Name Area="" Title="My - Searched - String" Help="" DurationFormat="" ReadAccessLevel="4294901760" WriteAccessLevel="4294901760">On</Name>
<Execution Condition="2" Threshold="1" ThresholdVar="" ThresholdLow="0" ThresholdVarLow="" VariableStatus="" Severity="10" SeverityVar="" SecDelay="0" RunCommandAtServer="0"/>
<Commands/>
<CommandsOn/>
<CommandsAck/>
<CommandsReset/>
<CommandsOff/>
<Style BackColor="4294967295" TextColor="65535" BlinkBackColor="4294967295" BlinkTextColor="4294967295" Print="1" Log="1" BlinkOnNewAlarm="0" VarTimeStamp="0" SupportAck="0" SupportReset="0" SupportResetConditionOn="0" BmpFile="" SndFile="" BeepEnabled="0" SpeechEnabled="0" RepeatSpeechEverySec="0" EnableSpeechVariable="" PlaysoundContinuosly="0" CommentOnAck="0"/>
<Recipient Attachment="" DispatchingText=""/>
<SendEmail SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendVoice SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendSMS SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendFax SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendAdminAlert SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendMessenger SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<ScriptCode StartSel="0" SelLength="0" OutStatusBar="1" OutLog="1" OutPrinter="1">
</ScriptCode>
</Threshold>
</ThresholdList>
</Alarm>
</AlarmList>
</Alarms>

下面是使用xml linq修改的标题。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.txt";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            string pattern = @"(?'start'@\()(?'middle'[^\)]+)(?'end'\))";

            foreach(XElement xTitle in doc.Descendants("Name").Where(x => x.Attribute("Title") != null))
            {
                string title = (string)xTitle.Attribute("Title");
                Console.WriteLine("Title : " + Regex.Replace(title, pattern, "${middle}"));
            }
            Console.ReadLine();
        }
    }
}
0
投票

回答jdweng的最后一条评论。

是的，我已经尝试了你的代码。我也试着把它和Tim的答案混在一起，他说要用XDocument.我现在试的就是这个。

            XmlReader xr = new XmlTextReader(Globals.AlrFile);

            lblMatches.Text = "";
            while (xr.Read())
            {
                if(xr.NodeType == XmlNodeType.Element)
                {
                    if(xr.AttributeCount > 0)
                    {
                        while(xr.MoveToNextAttribute())
                        {
                            string input = Convert.ToString(xr.Value);
                            string pattern = @"(?'start'@\()(?'middle'[^\)]+)(?'end'\))";
                            string output = Regex.Replace(input, pattern, "${middle}");

                            File.AppendAllText(Globals.AlrFileNeu, output + Environment.NewLine);
                        }
                    }
                }
            }

            xr.Close();

但我的xml输入是这样的:

<?xml version="1.0" encoding="ISO-8859-1" ?>
<Alarms>
<AlarmList>
<Alarm>
<Name Device="" Variable="" Area="1" ThresholdExclusive="0" Enabled="1" OnQualityGood="1" VariableDuration="0" EnableVariable="" EnableDispMsg="" Hysteresis="0" EventsCache="1024"></Name>
<ThresholdList>
<Threshold>
<Name Area="" Title="@(My) - @(Searched) - @(String)" Help="" DurationFormat="" ReadAccessLevel="4294901760" WriteAccessLevel="4294901760">On</Name>
<Execution Condition="2" Threshold="1" ThresholdVar="" ThresholdLow="0" ThresholdVarLow="" VariableStatus="" Severity="10" SeverityVar="" SecDelay="0" RunCommandAtServer="0"/>
<Commands/>
<CommandsOn/>
<CommandsAck/>
<CommandsReset/>
<CommandsOff/>
<Style BackColor="4294967295" TextColor="65535" BlinkBackColor="4294967295" BlinkTextColor="4294967295" Print="1" Log="1" BlinkOnNewAlarm="0" VarTimeStamp="0" SupportAck="0" SupportReset="0" SupportResetConditionOn="0" BmpFile="" SndFile="" BeepEnabled="0" SpeechEnabled="0" RepeatSpeechEverySec="0" EnableSpeechVariable="" PlaysoundContinuosly="0" CommentOnAck="0"/>
<Recipient Attachment="" DispatchingText=""/>
<SendEmail SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendVoice SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendSMS SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendFax SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendAdminAlert SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<SendMessenger SendON="0" SendACK="0" SendRESET="0" SendOFF="0"/>
<ScriptCode StartSel="0" SelLength="0" OutStatusBar="1" OutLog="1" OutPrinter="1">
</ScriptCode>
</Threshold>
</ThresholdList>
</Alarm>
</AlarmList>
</Alarms>

而我在新的文本文件中得到的输出是这样的：

1
0
1
1
0


0
1024

My - Searched - String


4294901760
4294901760
2
1

0


10

0
0
4294967295
65535
4294967295
4294967295
1
1
0
0
0
0
0


0
0
0

0
0


0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1

而我的问题是，我只需要在标题属性之间的文本 而我有多个报警元素要通过。

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