How to get specific word from text file each line and insert into 1st column csv file with all text file contents at second column?

Question

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C#

var myfile = (@"C:\Log\all.txt");
                string[] lin = File.ReadAllLines(myfile);
                string pat01 = @"PR -([A-Za-z0-9-]+)";
                MatchCollection matches = Regex.Matches((lin[1]), pat01);
                foreach (Match match in matches)
                {
                    string writeFile = @"E:\DataLocate_PR_id.csv";
                    string readFile = @"C:\Log\all.txt";                                   
                    StringBuilder csv = new StringBuilder();
                    csv.AppendLine(match + readFile);
                    File.AppendAllText(writeFile, csv.ToString());                
                }

What I have tried:

This is my 1s try and many of code hard to understand that I read from other forums.

Posted 9-Jun-16 19:33pm

Nigol_Learner

Updated 13-Jun-16 14:42pm

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Comments

Maciej Los 10-Jun-16 1:52am

Unclear! Please, be more specific and provide more details. Sample data would be helphul.

Nigol_Learner 10-Jun-16 3:27am

My all.txt file content alot's of lines like below :
\\192.168.8.212\c\Avago.ATF.Common\Clotho_SDI_Data\FBAR_2MS5-1505_N3131-3033_PR-EG4090-28_FULL-1PASS_CHAN1_20160610_104333_IP192.168.0.2_G6AABRH

Each line I want to copy the content "PR-EG4090-28" into 1st column .csv file, and copy the line "\\192.168.8.212\c\Avago.ATF.Common\Clotho_SDI_Data\FBAR_2MS5-1505_N3131-3033_PR-EG4090-28_FULL-1PASS_CHAN1_20160610_104333_IP192.168.0.2_G6AABRH
" into 2nd column.

So the output will be like this in .csv file:
"PR-EG4090-28 \\192.168.8.212\c\Avago.ATF.Common\Clotho_SDI_Data\FBAR_2MS5-1505_N3131-3033_PR-EG4090-28_FULL-1PASS_CHAN1_20160610_104333_IP192.168.0.2_G6AABRH"

"PR-EG4090-28" < this id already in the line, so I want it to copied/write in 1st column then only copied/write those line in 2nd column.

Nigol_Learner 13-Jun-16 1:29am

{ var myfile = (@"c:\Log\all.txt");
string[] lin = File.ReadAllLines(myfile);
string pat01 = @"PR-([A-Za-z0-9-]+)";
string pat02 = @"^.*$";
MatchCollection matches = Regex.Matches(lin[0], pat01);
MatchCollection matchess = Regex.Matches(lin[0], pat02);
foreach (Match match in matches)
foreach (Match match1 in matchess)
{
Application x = new Application();
Workbook wb = x.Workbooks.Add();
Worksheet sheet = (Worksheet)wb.Worksheets.get_Item(1);
sheet.Cells[1, 1] = "Prober ID";
sheet.Cells[1, 1].Interior.ColorIndex = 10;
sheet.Cells[1, 3] = "Datalog Path";
sheet.Cells[1, 3].Interior.ColorIndex = 10;

int rowCounter = 2;
int columnCounter = 1;
int columnCounter1 = 3;
{
sheet.Cells[rowCounter, columnCounter] = match.ToString();
columnCounter += 1;
}
{
sheet.Cells[rowCounter, columnCounter1] = match1.ToString();
columnCounter1 += 3;
}

wb.SaveAs(@"D:\DataLocate_PR_id.xlsx");
wb.Close();
x.Quit();
Process.Start(@"D:\DataLocate_PR_id.xlsx");
}

Nigol_Learner 13-Jun-16 1:32am

Guys, I changing the code those I need what I want, but now the problem is, it only able to get 1st line data, but I want it to get all the lines from "all.txt"? Please help me on this?

Nigol_Learner 13-Jun-16 1:48am

var myfile = (@"c:\Log\all.txt");
string[] lin = File.ReadAllLines(myfile);
string pat01 = @"PR-([A-Za-z0-9-]+)";
string pat02 = @"^.*$";
foreach (string line in lin)
{
MatchCollection matches = Regex.Matches(line, pat01);
MatchCollection matchess = Regex.Matches(line, pat02);
foreach (Match match in matches)
foreach (Match match1 in matchess)
{

Abit change on the code....

2 solutions

Solution 2

You can try something like this:

C#

string input = File.ReadAllText(myfile);
Regex regex = new Regex(@"^(?<col2>.*(?<col1>PR\s*-\s*[A-Za-z0-9-]+).*)$", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.Multiline);
MatchCollection matchCollection = regex.Matches(input);
using (TextWriter tw = new StreamWriter(writeFile))
{
    foreach (Match m in matchCollection)
    {
        string col1 = m.Groups["col1"].Value;  // Only the extracted part
        string col2 = m.Groups["col2"].Value;  // The full line
        tw.WriteLine("{0},{1}", col1, col2);
    }
}

Result

PR-EG4090-28,\\192.168.8.212\c\Avago.ATF.Common\Clotho_SDI_Data\FBAR_2MS5-1505_N3131-3033_PR-EG4090-28_FULL-1PASS_CHAN1_20160610_104333_IP192.168.0.2_G6AABRH

Posted 12-Jun-16 22:18pm

George Jonsson

Updated 13-Jun-16 1:48am

v2

Comments

Nigol_Learner 13-Jun-16 5:29am

string myfile = (@"c:\Log\all.txt");
string writeFile = (@"D:\DataLocate_PR_id.csv");
string input = File.ReadAllText(myfile);
Regex regex = new Regex(@"^(?<col2>.*(?<col1>PR\s*-\s*[A-Za-z0-9-]+).*)$", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.Multiline);
MatchCollection matchCollection = regex.Matches(input);
using (TextWriter tw = new StreamWriter(writeFile))
{
foreach (Match m in matchCollection)
{
string col1 = m.Groups["col1"].Value; // Only the extracted part
string col2 = m.Groups["col2"].Value; // The full line
tw.WriteLine("{0},{1}", col1, col2);
}
}

Did I done Anything wrong with above code Bro? Because only col1 get right data ready but col2 just empty.

George Jonsson 13-Jun-16 7:48am

Sorry, my bad. I accidentally wrote Col2 instead of col2 inside the regular expression.
C# is a bit case sensitive.
See the updated solution.

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Matt T Heffron · Accepted Answer · 2016-06-13T14:42:00

It isn't necessary to load the whole file into memory first. You can process it line-by-line:

C#

using System.IO;
using System.Text.RegularExpressions;

namespace ConsoleApplication17
{
  class Program
  {
    private static Regex Pattern = new Regex(@"(PR\s*-\s*[A-Za-z0-9-]+)", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.Compiled);
    static void Main(string[] args)
    {
      string myFile = @"..\..\TextFile1.txt";
      string writeFile = @"..\..\TextFile1.csv";
      using (TextWriter writer = new StreamWriter(writeFile))
      {
        foreach (string line in File.ReadLines(myFile))
        {
          Match m = Pattern.Match(line);
          if (m.Success)
          {
            writer.Write(m.Groups[1].Value);
            writer.Write(",");
            writer.WriteLine(line);
          }
        }
      }
    }
  }
}