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REGEX specific word from Name [closed]

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I am trying to figure out regex for wrongly formated names where the user has entered in the name and the relationship as one value, for example
[Son of Joseph Joestar ] => s/o. Joseph Joestar
the problem is since there was no validation, the users entered different variations like
s/o , s/, s/Joseph... , etc
this is so far I have gotten
^(s\/o.)(S\/o.)(s\/o)(S\/o)(s\/)(S\/)\w+
the relation is at the beginning or at the start, and after that is the name
there are 3 more cases Daughter(D/o.), Wife(W/o.), Father(F/o.)
I want to know the corresponding REGEX to filter out the relation prefixes
Thank You In advance

Maybe start with something like that
string foo = "s/o. Joseph Joestar";
// Look (and capture) for SDWF followed by "/" and
// EITHER "o" and maybe "." and maybe a white space
// OR we look ahead (?= ) and see a Upper wordchar followeed by lower word chars.
// look ahead because we do not want to have anything to do with this when replacing
string bar = Regex.Replace(foo, #"^([sSdDwWfF])/(o\.?\s?|(?=[A-Z]\w+))", match =>
{
string relation = match.Groups[1].Value.ToUpper() switch
{
"S" => "Son of",
"D" => "Daughter of",
"F" => "Father of",
"W" => "Wife of",
_ => throw new Exception("Oops")
};
return $"{relation} ";
});

How do I split a string with '$' delimiter? [closed]

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I have this FINAL PAYMENT $25 string on a MVC c# application.
I want to split into FINAL PAYMENT and 25
I tried doing this
string s = "FINAL PAYMENT $25";
string[] str1 = s.Split('$');
//result: 25
How can I get the rest. Can anyone help?

Split method returns a string array, if you need both elements of this array, Try:
string s = "FINAL PAYMENT $25";
string[] resArray = s.Split('$');
var FPayment = resArray[0];
var second25= resArray[1];

You can use indexOf instead of a Split
string s = "FINAL PAYMENT $25";
int index = s.IndexOf("$");
String final_pay = s.Substring(index + 1);

how do you take a string then organize the words in it with how many times the word occurs in c#? [closed]

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ok I have no idea on how to do this and i have tried looking up how to do this but nothing good came up so ill ask it here. So what i am trying to do is:
string input = TextEditor.text; <-- this is in windows form application and
The "TextEditor" is the textbox for input
i want to take the string (which is input from the texct box) then split it so each word is on every other line like so:
if input = "hi my name is is"
out put should be:
hi: 1
my: 1
name: 1
is: 2 <-- if the word is said it shouldn't be repeated.
could someone please help me? I am a true newbie and i am completely lost. I don't have any code yet because I DONT KNOW HOW TO DO THIS!

Use Linq GroupBy and Count:
string inputText = "hi my name is is";
var words = inputText.Split(' ').ToList();
var wordGroups = words.GroupBy(w => w).Select(grp => new {
Word = grp.Key,
Count = grp.Count()
});
string outputText = string.Join("\n", wordGroups.Select(g => string.Format("{0}:\t{1}", g.Word, g.Count)));
/*
hi: 1
my: 1
name: 1
is: 2
*/

Split the input string into an array, then use that to build a dictionary. If the word is already in the dictionary, increment it. Otherwise add it with an initial value of 1.
string input = TextEditor.text;
string[] inputWords = input.Split(' ');
Dictionary<string, int> wordCounts = new Dictionary<string, int>();
foreach (string word in inputWords)
{
if (wordCounts.ContainsKey(word))
{
wordCounts[word]++;
}
else
{
wordCounts.Add(word, 1);
}
}

c# how to get specific string [closed]

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Hi I am facing problem to get specific string. The string as below:
string myPurseBalance = "Purse Balance: +0000004000 556080";
I want to get 4000 out only.

if your string format/pattern is fix then you can get specific value
string myPurseBalance = "Purse Balance: +0000004000 556080";
//
var newPursebal =Convert.ToDouble(myPurseBalance.Split('+')[1].Split(' ')[0]);

You can use this regular expression:
string extract = Regex.Replace(myPurseBalance, #"(.*?)\: \+[0]*(?<val>\d+) (.*)", "${val}")
It searches for the decimals after :, trims the leading 0s and removes everything after the last whitespace.

You can use string.Split to get the +0000004000 and then use string.Substring to get the last four characters by passing the Length-4 as starting index.
string str = myPurseBalance.Split(' ')[2];
str = str.Substring(str.Length-4);

Learn Regex . Here is just simple tutorial
using System;
using System.Text.RegularExpressions;
namespace regex
{
class MainClass
{
public static void Main (string[] args)
{
string input = "Purse Balance: +0000504000 556080";
// Here we call Regex.Match.
Match match = Regex.Match(input, #"\+[0]*(\d+)",
RegexOptions.IgnoreCase);
// Here we check the Match instance.
if (match.Success)
{
// Finally, we get the Group value and display it.
string key = match.Groups[1].Value;
Console.WriteLine(key);
}
}
}
}

Extract part of the string based on delimiters [closed]

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I need help to develop a logic that will extract part of the string when the user enter a "delimiter"
For example:
string data = "|cBlue|pDaisy|pRose|mTomato|mWheat|pCabbage|p100 units|d19.0";
string userInput = //User enter input
So, if the user enters "|c", it should return "Blue"
If the user enters "|m", it should return "Tomato", "Wheat" as 2 strings.
If the user enters "|p", it should return "Daisy", "Rose", "Cabbage" and "100 units" as 4 different strings.
If the user enters something that is not exist, say for example, |z, it will return nothing or an empty string "".
Note: This is just a sample data, the actual data consists of |a - |z, |A - |Z

Start with string.Split() to tokenize the string.
Then iterate over each token. Pull out its first character and construct a Dictionary<char, string> using the first character as a key and the remainder as a value.
Then simply do a dictionary lookup on the desired character to find the relevant token.

First get the input,parse it.Use Split method then filter the words by first letter,Something like this:
var userInput = Console.ReadLine();
if(userInput.Length == 2)
{
var words = data.Split(userInput[0]).Where(x => x.StartsWith(userInput[1].ToString()));
if(words.Any())
{
var result = words.Select(x => x.Substring(1)).ToList();
}
else
{
// no word found
}
}