search and extract sentence containg specific word in a text file using C# and regex class

Question

0.00/5 (No votes)

See more:

I am trying to read a text file and extract a clause/ sentence containg specific words from the file .

C#

using System;
using System.Text.RegularExpressions;

public class Example
{
   public static void Main()
   {
      string pattern =@"(?<=^|\.)[^.]*?(? =\bshall incure to all bank of amrerica Affiliates\b).*(\.|$)"
      string input = "anita singh is good girl.Supplier expressly acknowledges and agrees that the rights and obligations of Bank of india set forth in this Agreement shall inure to all Bank of india Affiliates.anita is a good girl." ;
      Match match = Regex.Match(input, pattern);
      if (match.Success)
      {
         Console.WriteLine("Match: " + match.Value);
      } 
   }
}

output would be

Supplier expressly acknowledges and agrees that the rights and obligations of Bank of India set forth in this Agreement shall inure to all Bank of india Affiliates.

Posted 21-Nov-13 1:21am

Member 10378420

Add a Solution

Comments

ZurdoDev 21-Nov-13 7:43am

Where are you stuck?

BillWoodruff 21-Nov-13 11:51am

shall incure to all bank of amrerica Affiliates
shall inure to all Bank of india Affiliates

The fact that your search string doesn't have a match indicates to me you have never run this code. Homework ?

Member 10378420 22-Nov-13 2:29am

sorry its india insted of america

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

bowlturner · Answer 1 · 2013-11-21T05:08:00

Solution 2

I found this as a possible solution. I know I'm keeping it around from now on.

C#

public static bool ExactMatch(string input, string match)
{
    return Regex.IsMatch(input, string.Format(@"\b{0}\b", Regex.Escape(match)));
}

Posted 21-Nov-13 5:08am

bowlturner

Updated 21-Nov-13 5:09am

v2

Comments

BillWoodruff 21-Nov-13 11:52am

+5 Nice !

bowlturner 21-Nov-13 13:07pm

Thanks!

Member 10378420 22-Nov-13 2:31am

thanks trying to ckeck if it works

Nicholas Marty · Answer 2 · 2013-11-21T03:21:00

Solution 1

Make your life easier and split the string into sentences first.

Example:

C#

var regex = new Regex(@".*your text goes here.*");
var text = "This is a Test 2. This is the sentence with 'your text goes here' xyz. The middle sentence is the one we want.";

var texts = text.Split('.');
foreach(var t in texts) {
   if(regex.IsMatch(t)) {
      Console.WriteLine(t.Trim());
   }
}

Posted 21-Nov-13 3:21am

Nicholas Marty

Comments

Member 10378420 22-Nov-13 3:16am

Thanks the code works fine but what if there is text file called contract.txt and somewhere in the text file "your text goes here" is written .

How to extract it ?

Nicholas Marty 22-Nov-13 3:37am

You just read the file into a string. Either line by line or the complete file at once. This pretty much depends what you want to use it for. If your file isn't that big reading the whole file into memory shouldn't be an issue.

Member 10378420 27-Nov-13 4:39am

HI Marty thanks for the help . i m grateful to u ...

my code runs perfectly ..with a slight problem
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var regex = new Regex(@".*shall inure to all Bank Affiliates.*");
var text = "If Supplier does not respond promptly to any request by Bank for telephone consultative service, then Bank may attempt to contact the next more responsible or qualified person on the Calling List until contact is made and a designated person responds to the call.2.6 Supplier expressly acknowledges and agrees that the rights and obligations of Bank set forth in this Agreement shall inure to all Bank Affiliates. In the event this Agreement Proprietary to Bank .";
var texts = text.Split('.');
foreach(var t in texts)
{
if(regex.IsMatch(t))
{
Console.WriteLine(t.Trim());
}
}
}
}
}

output is

6 Supplier expressly acknowledges and agrees that the rights and obligations of Bank set forth in this Agreement shall inure to all Bank Affiliates

I dont want 6 to be coming in the output ...plsssss help

Member 11503141 7-Aug-15 8:39am

gg

Member 10378420 27-Nov-13 4:39am

anybody plsssss