txt search

Hi Marvin,

The issue arises because the StartsWith method is matching any verse that starts with Genesis 1:2, which can also include Genesis 1:20, Genesis 1:21, and similar entries.

To make sure you only match the exact verse, you can use a regular expression with a word boundary (\b) to ensure the search pattern matches exactly, including verse numbers like "Genesis 1:2" but not "Genesis 1:20". Here's how you can update your code:

Modified Code:

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

textBox4.Text = "";
int a = System.Convert.ToInt32(txtch.Text);
int b = System.Convert.ToInt32(txtvs.Text);

string bibleFilePath = "C:/TextSpeech/Bible.txt";
string book = txtbook.Text;
int chapter = a;
int verse = b;

string searchFor = string.Format(@"{0} {1}:{2}\b", book, chapter, verse); // Add word boundary
string[] lines = File.ReadAllLines(bibleFilePath, System.Text.Encoding.UTF8);

// Use a regular expression to match exact verse format
Regex regex = new Regex(@"^\b" + Regex.Escape(searchFor) + @"\b");

foreach (string line in lines)
{
    if (regex.IsMatch(line))
    {
        textBox4.AppendText(line + Environment.NewLine);
    }
}

• Regex.Escape(searchFor): This escapes special characters in the search string (like :) so that they are treated literally.
• \b (word boundary): Ensures that Genesis 1:2 will not match Genesis 1:20 or Genesis 1:21. The ^\b ensures that the verse starts with the exact match.

With this approach, you should get only the exact verse you are searching for, like "Genesis 1:2", without the additional matches for other verses starting with "1:2".

Hello Marvin,

You can achieve this using pattern matching,

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

class Program
{
    static void Main()
    {
        
        string book = "Genesis";
        int chapter = 1;
        int verse = 2;
        
       
        string pattern = $@"^{book}\s{chapter}:{verse}\b";

        // Read the Bible text file (replace the path with your actual file path)
        string[] bibleLines = File.ReadAllLines("path/to/bible.txt");

        // print the Bible text file and search for a match
        foreach (var line in bibleLines)
        {
            if (Regex.IsMatch(line, pattern))
            {
                Console.WriteLine(line);
            }
        }
    }
}

Thanks Amit, i have tried your method but code is still not return any data.

You can use regular expressions to enforce an exact match for the verse reference, including word boundaries. For example:

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

textBox4.Text = "";
int a = System.Convert.ToInt32(txtch.Text);
int b = System.Convert.ToInt32(txtvs.Text);

string bibleFilePath = "C:/TextSpeech/Bible.txt";
string book = txtbook.Text;
int chapter = a;
int verse = b;

string searchFor = $@"\b{book} {chapter}:{verse}\b";
string[] lines = File.ReadAllLines(bibleFilePath, System.Text.Encoding.UTF8);

Regex regex = new Regex(searchFor);

foreach (string line in lines)
{
    if (regex.IsMatch(line))
    {
        textBox4.AppendText(line + Environment.NewLine);
    }
}