ive got the following c# code:
string textBoxInput = richTextBox1.Text;
StreamReader SentencesFile = new StreamReader(#"C:\Users\Jeroen\Desktop\School\C#\opwegmetcsharp\answersSen.txt");
string Sentence = SentencesFile.ReadLine();
List<List<string>> keywordsList = new List<List<string>>();
List<string> outputSentence = new List<string>();
while (Sentence != null)
{
string keywords = Sentence.Substring(0, Sentence.IndexOf(' '));
string sentenceString = Sentence.Substring(0, Sentence.IndexOf(' ') +1);
List<string> splitKeyword = keywords.Split(',').ToList();
keywordsList.Add(splitKeyword);
outputSentence.Add(sentenceString);
}
int similar = 0;
int totalSimilar = 0;
List<string> SplitUserInput = textBoxInput.Split(' ').ToList();
And a .txt file which contains the following:
car,bmw Do you own a BMW?
car,Tesla Do you own a Tesla?
new,house Did you buy a new house?
snow,outside Is it snowing outside?
internet,down Is your internet down?
I can't figure out how i can compare every word that a user typed in the input (richTextBox1.Text) with the keywords in the .txt file ( like car and bmw for the first sentence )
And it also has to remember the sentence that has the highest amount of "hits".
I'm really stuck and searched a lot, but somehow i can't find out how i can do this.
A lot of thanks in advance!
You can use the LINQ Contains to check if a word is found in a list. But beware because it is case sensitive as password does. Use it like this:
//assuming you already list the keyword here
List<string> keywords = new List<string>() { "keyword1", "keyword2" };
Then for each sentence, supposing in this form:
string sentence1 = "Hi, this keYWord1 present! But quite malformed";
string sentence2 = "keywoRD2 and keyWOrd1 also present here, malformed";
Note: the above sentences could be your text from RichTextBox or file, it doesn't matter. Here I only show the concept.
You can do:
string[] words = sentence1.ToLower().Split(new char[] { ' ', ',', '.' });
int counter = 0;
for (int i = 0; i < words.Length; ++i){
counter += keywords.Contains(words[i]) ? 1 : 0;
}
And you can do likewise for sentence2. Whoever gets the highest counter has the highest hits.
This might be too advanced for a 1st year student but this piece of code will work for your need. Using Regex class to do matching for you. Performance-wise it's faster (AFAIK). I used a console application to work on this as I don't think it will be hard for you to use it in a WinForms/WPF application.
string textBoxInput = "car test do bmw"; // Just a sample as I am using a console app
string[] sentences = File.ReadAllLines("sentences.txt"); // Read all lines of a text file and assign it to a string array
string[] keywords = textBoxInput.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries); // Split textBoxInput by space
int[] matchArray = new int[sentences.Length];
for(int i = 0; i < sentences.Length; i++)
{
Regex regex = new Regex(#"\b(" + string.Join("|", keywords.Select(Regex.Escape).ToArray()) + #"+\b)", RegexOptions.IgnoreCase);
MatchCollection matches = regex.Matches(sentences[i]);
matchArray[i] = matches.Count;
}
int highesMatchIndex = Array.IndexOf(matchArray, matchArray.OrderByDescending(item => item).First());
Console.WriteLine("User input: " + textBoxInput);
Console.WriteLine("Matching sentence: " + sentences[highesMatchIndex]);
Console.WriteLine("Match count: " + matchArray[highesMatchIndex]);
Console.ReadLine();
Related
Iam trying to highlight the multiple keywords in gridview.I tried with forloop but it highlight only the first item from the array.
protected string HighlightText(string searchWord, string inputText)
{
// string[] strArray = new string[] { "Hello", "Welcome" };
string s = "d,s";
// Split string on spaces.
// ... This will separate all the words.
string[] words = s.Split(',');
for (int i = 0; i < words.Length; i++)
{
//Console.WriteLine(word);
searchWord = words[i];
Regex expression = new Regex(searchWord.Replace(" ", "|"), RegexOptions.IgnoreCase);
return expression.Replace(inputText, new MatchEvaluator(ReplaceKeywords));
}
return string.Empty;
}
Advance thanks.
This was the out put Iam getting only the keyword "d" get highlighted I need to highlight keyword "s" also...
Can you try something like this, instead of looping for keywords 1 by 1
string inputText = "this is keyword1 for test and keyword4 also";
Regex keywords = new Regex("keyword1|keyword2|keyword3|keyword4");
//keywords = keywords.Replace("|", "\b|\b"); //or use \b between keywords
foreach (Match match in keywords.Matches(inputText))
{
//get match.Index & match.Length for selection and color it
}
I am trying to add a leaderboard in my unity app
I have a long string as below(just an example, actual string is http pipe data from my web service, not manually stored):
string str ="name1|10|junk data.....\n
name2|9|junk data.....\n
name3|8|junk data.....\n
name4|7|junk data....."
I want to get the first word (string before the first pipe '|' like name1,name2...) from every line and store it in an array and then get the numbers (10,9,8... arter the '|') and store it in an other one.
Anyone know whats the best way to do this?
Fiddle here: https://dotnetfiddle.net/utp4HK
code below, you may want to revisit the algorithm for performance, but if that is not an issue, this will do the trick;
using System;
public class Program
{
public static void Main()
{
string str ="name1|10|junk data.....\nname2|9|junk data.....\nname3|8|junkdata.....\nname4|7|junk data.....";
foreach (var line in str.Split('\n'))
{
Console.WriteLine(line.Split('|')[0]);
}
}
}
First split by new-line characters:
string[] lines = str.Split(new string[]{Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
Then you can use LINQ to get both arrays:
var data = lines.Select(l => l.Trim().Split('|')).Where(arr => arr.Length > 1);
string[] names = data.Select(arr => arr[0].Trim()).ToArray();
string[] numbers = data.Select(arr => arr[1].Trim()).ToArray();
Check out this link on splitting strings: http://msdn.microsoft.com/en-us/library/ms228388.aspx
You could first create an array of strings (one for each line) by splitting the long string with \n as the delimeter.
Then, you could split each line with | as the delimeter. The name would be the 0th index of the array and the number would be the 1st index of the array.
First of all, you can't have a multi line string without using verbatim string literal. With using verbatim string literal, you can split your string based on \r\n or Environment.NewLine like;
string str = #"name1|10|junk data.....
name2|9|junk data.....
name3|8|junk data.....
name4|7|junk data.....";
var array = str.Split(new []{Environment.NewLine},
StringSplitOptions.RemoveEmptyEntries);
foreach (var item in array)
{
Console.WriteLine(item.Split(new[]{"|"},
StringSplitOptions.RemoveEmptyEntries)[0].Trim());
}
Output will be;
name1
name2
name3
name4
Try this:
string str ="name1|10|junk data.....\n" +
"name2|9|junk data.....\n" +
"name3|8|junk data.....\n" +
"name4|7|junk data.....";
string[] tempArray1 = str.Split('\n');
string[] tempArray2 = null;
string[,] newArray = null;
for (int i = 0; i < tempArray1.Length; i++)
{
tempArray2 = tempArray1[i].Split('|');
if (newArray[0, 0].ToString().Length == 0)
{
newArray = new string[tempArray1.Length, tempArray2.Length];
}
for (int j = 0; j < tempArray2.Length; j++)
{
newArray[i,j] = tempArray2[j];
}
}
I have to write a program which parses a string for words starting with '#' and return the words along with the # symbol.
I have tried something like:
char[] delim = { '#' };
string[] strArr = commenttext.Split(delim);
return strArr;
But it returns all the words without '#' in an array.
I need something pretty straight forward.No LINQ like things
If the string is "abc #ert #xyz" then I should get back #ert and #xyz.
If you define "word" as "separated by spaces" then this would work:
string[] strArr = commenttext.Split(' ')
.Where(w => w.StartsWith("#"))
.ToArray();
If you need something more complex, a Regular Expression might be more appropriate.
I need something pretty straight forward.No LINQ like things>
The non-Linq equivalent would be:
var words = commenttext.Split(' ');
List<string> temp = new List<string>();
foreach(string w in words)
{
if(w.StartsWith("#"))
temp.Add(w);
}
string[] strArr = temp.ToArray();
If you're against using Linq, which you should not be unless you're required to use older .NET versions, an approach along these lines would suit your needs.
string[] words = commenttext.Split(delimiter);
for (int i = 0; i < words.Length; i++)
{
string word = words[i];
if (word.StartsWith(delimiter))
{
// save in array / list
}
}
const string test = "#Amir abcdef #Stack #C# mnop xyz";
var splited = test.Split(' ').Where(m => m.StartsWith("#")).ToList();
foreach (var b in splited)
{
Console.WriteLine(b.Substring(1, b.Length - 1));
}
Console.ReadKey();
I have this code :
private void BtnScrambleText_Click(object sender, EventArgs e)
{
textBox1.Enabled = false;
BtnScrambleText.Enabled = false;
StringBuilder sb = new StringBuilder();
var words = textBox1.Text.Split(new char[] { ' ' });
for (int i = 0; i < words.Length; i++)
{
if (string.IsNullOrEmpty(words[i]))
{
sb.Append(words[i]);
}
else
{
ScrambleTextBoxText scrmbltb = new ScrambleTextBoxText(words[i]);
scrmbltb.GetText();
sb.Append(scrmbltb.scrambledWord);
}
}
textBox2.AppendText(sb.ToString());
}
For example in textBox1 i did typed pressed the space bar key 7 times and then typed some words and then 5 spaces again and a word:
danny hi hello daniel hello
So lets say danny is after 7 spaces from the beginning in textBox1 and between daniel and hello there are more 5 spaces.
In my code i did:
if (string.IsNullOrEmpty(words[i]))
{
sb.Append(words[i]);
}
But that never will happen and its not right.
I wanted to check that if before or after a word in the textBox there is any space/s add the space/s to the sb variable.
So in the end textBox2 content will be the same as in textBox1 with the same number of spaces between the words.
Now textBox2 looks like a long one string of words without any spaces between them.
My problem is how to add the same spaces between the words from textBox1 ?
I simplified your code a little, but you should find it easy to apply in your situation. The problem comes from the fact that you are losing the spaces when you do the split and they are not being added back in. The solution is to use "String.Join" when you have the finished collection of strings. In this case since you know the output size is the same as the input size, I don't see any reason to use the stringbuilder. Just use an array you size to the input.
string inputText = "This is a test";
var words = inputText.Split(new char[] { ' ' });
var outputWords = new string[words.Length];
for (int i = 0; i < words.Length; i++)
{
if (string.IsNullOrEmpty(words[i]))
{
outputWords[i] = words[i];
}
else
{
outputWords[i] = Scramble(words[i]);
}
}
string outputText = string.Join(" ",outputWords);
This statement is absolutely useless:
if (string.IsNullOrEmpty(words[i]))
{
sb.Append(words[i]);
}
It seems you need something like this (not tested):
private void BtnScrambleText_Click(object sender, EventArgs e)
{
textBox1.Enabled = false;
BtnScrambleText.Enabled = false;
StringBuilder sb = new StringBuilder();
var words = Regex.Split(textBox1.Text, #"(?=(?<=[^\s])\s+)");
foreach (string word in words)
{
ScrambleTextBoxText scrmbltb = new ScrambleTextBoxText(word.Trim());
scrmbltb.GetText();
sb.Append(word.Replace(word.Trim(), scrmbltb.scrambledWord));
}
textBox2.AppendText(sb.ToString());
}
Regex.Split(textBox1.Text, #"(?=(?<=[^\s])\s+)") splits the input string with preserving spaces.
This the easy form
string text=mytextbox.Text;
while(text.Contains(" ")) //while two spaces
text=text.Replace(" "," "); //remove two spaces
If i got it right, your problem is to keep the exact number of spaces between the then scrambled words.
var words = string.Split(new char[]{' '}, StringSplitOptions.None); // this keeps the spaces as "epmty words"
var scrambled = words.Select(w => { if (String.IsNullOrEmpty(w))
return w;
else {
ScrambleTextBoxText scrmbltb = new ScrambleTextBoxText(w);
scrmbltb.GetText();
return scrmbltb.scrambledWord;
}
});
var result = string.Join(" ", scrambled);
I am having an output in string format like following :
"ABCDED 0000A1.txt PQRSNT 12345"
I want to retreieve substring(s) having .txt in above string. e.g. For above it should return 0000A1.txt.
Thanks
You can either split the string at whitespace boundaries like it's already been suggested or repeatedly match the same regex like this:
var input = "ABCDED 0000A1.txt PQRSNT 12345 THE.txt FOO";
var match = Regex.Match (input, #"\b([\w\d]+\.txt)\b");
while (match.Success) {
Console.WriteLine ("TEST: {0}", match.Value);
match = match.NextMatch ();
}
Split will work if it the spaces are the seperator. if you use oter seperators you can add as needed
string input = "ABCDED 0000A1.txt PQRSNT 12345";
string filename = input.Split(' ').FirstOrDefault(f => System.IO.Path.HasExtension(f));
filname = "0000A1.txt" and this will work for any extension
You may use c#, regex and pattern, match :)
Here is the code, plug it in try. Please comment.
string test = "afdkljfljalf dkfjd.txt lkjdfjdl";
string ffile = Regex.Match(test, #"\([a-z0-9])+.txt").Groups[1].Value;
Console.WriteLine(ffile);
Reference: regexp
I did something like this:
string subString = "";
char period = '.';
char[] chArString;
int iSubStrIndex = 0;
if (myString != null)
{
chArString = new char[myString.Length];
chArString = myString.ToCharArray();
for (int i = 0; i < myString.Length; i ++)
{
if (chArString[i] == period)
iSubStrIndex = i;
}
substring = myString.Substring(iSubStrIndex);
}
Hope that helps.
First split your string in array using
char[] whitespace = new char[] { ' ', '\t' };
string[] ssizes = myStr.Split(whitespace);
Then find .txt in array...
// Find first element starting with .txt.
//
string value1 = Array.Find(array1,
element => element.Contains(".txt", StringComparison.Ordinal));
Now your value1 will have the "0000A1.txt"
Happy coding.