Develop Reference

Find multiple values and strings within another string in C#

So I have this string with 4 lines:
id score ping guid name lastmsg address qport rate
--- ----- ---- ---------- --------------- ------- --------------------- ------ -----
1 11 45 176387877 Player 1 3250 101.102.103.104:555 3647 25000
2 23 61 425716719 Player 2 3250 105.106.107.108:555 5978 25000
How can I 'extract' all of these values? Like, I want to save "id", "score", "ping", "guid", "name", etc.
I have played around with a "GetBetween" function I found here. I also tried to learn the string.Split function. But I don't think I'm getting close to what I want to archive, also I don't really understand splitting a string quite yet.
I basically need to remove all of the " " empty spaces between the values, problem is, the value length may change, e.g "name".
Can someone give me an example how I could extract the values?
Thanks in advance!

RegEx.Split is your friend, and this works well enough.
void Main()
{
// fun fact, the # in front of the string means it's literal, so you
// literally get the new lines
var input =
#"id score ping guid name lastmsg address qport rate
-- - -------------------------------------------------------------------------
1 11 45 176387877 Player 1 3250 101.102.103.104:555 3647 25000
2 23 61 425716719 Player 2 3250 105.106.107.108:555 5978 25000";
//Gets you each line
var lines = input.Split('\n');
// Skip 2 because I doubt you care about the column title
// or the row with the dashes
foreach (var line in lines.Skip(2))
{
// For each line, Regex split will return an array with each entry
// Set a breakpoint with the debugger and inspect to see what I mean.
// Splits using regex - assumes at least 2 spaces between items
// so space in 'Player 1' is handled it's a fickle solution though
// Trim the line before RegEx split to avoid extra data in the split
var r = Regex.Split(line.Trim(), #"\s{2,}");
}
}

You can do this with Regex and named groups.
Sample Input
var str = #"id score ping guid name lastmsg address qport rate
--- ----- ---- ---------- --------------- ------- --------------------- ------ -----
1 11 45 176387877 Player 1 3250 101.102.103.104:555 3647 25000
2 23 61 425716719 Player 2 3250 105.106.107.108:555 5978 25000";
Regex Definition
var regex = new Regex(#"^(?<id>[\d]+)(\s{2,})(?<score>[\d]+)(\s{2,})(?<ping>[\d]+)(\s{1,})(?<guid>[\d]+)(\s{2,})(?<name>([\w]+\s[\w]+))(\s{2,})(?<lastmsg>[\d]+)(\s{2,})(?<ip>[\d.:]+)(\s{2,})(?<port>[\d]+)(\s{2,})(?<rate>[\d]+)$",RegexOptions.Compiled);
Parsing Code
var lines = str.Split(new []{Environment.NewLine},StringSplitOptions.RemoveEmptyEntries);
foreach(var line in lines)
{
var match = regex.Match(line.Trim());
if(!match.Success) continue;
Console.WriteLine($"ID = {match.Groups["id"].Value}");
Console.WriteLine($"Score = {match.Groups["score"].Value}");
Console.WriteLine($"Ping = {match.Groups["ping"].Value}");
Console.WriteLine($"Guid = {match.Groups["guid"].Value}");
Console.WriteLine($"Name = {match.Groups["name"].Value}");
Console.WriteLine($"Last Msg = {match.Groups["lastmsg"].Value}");
Console.WriteLine($"Port = {match.Groups["port"].Value}");
Console.WriteLine($"Rate = {match.Groups["rate"].Value}");
}
Output
ID = 1
Score = 11
Ping = 45
Guid = 176387877
Name = Player 1
Last Msg = 3250
Port = 3647
Rate = 25000
ID = 2
Score = 23
Ping = 61
Guid = 425716719
Name = Player 2
Last Msg = 3250
Port = 5978
Rate = 25000

Edit specific word in specific line

I know this has been asked a few times, but I'm need a fast way to do this in files with different size (small and large files).
I need to edit scale factor in sat(txt) file. This is a first number in third line:
700 104 1 0 16 Autodesk AutoCAD 19 ASM 221.0.0.1871 NT 24 Tue
Aug 16 09:02:14 2016
1000 9.9999999999999995e-007 1e-010

I suggest extracting a method and Linq:
private static String MyEditLine(string value) {
var items = value.Split(new char[] { ' ' }, 2);
items[0] = "2000"; // let's change 1000 into 2000
return string.Join(" ", items);
}
...
var target = File
.ReadLines(#"C:\MyFile.txt")
.Select((line, index) => index != 2
? line
: MyEditLine(line))
.ToList();
File.WriteAllLines(#"C:\MyFile.txt", target);

assume you read your file and get a String[] called file and the number, you want to modify, is represented as float.
Than you can use the following code to first extract the line, you want. After this you get the number through float.TryParse(..)
int lineWithParam = 3;
String[] splittedLine = (file[lineWithParam-1]).Split(new char[] { ' ' }, 2);
if(splittedLine.Length == 2)
{
float fact = 0.0f;
String newFact = splittedLine[0];
// or how ever you want to modify your factor
if(float.TryParse(splittedLine[0], out fact))
{
newFact = "" + (fact * 12.3f);
}
file[lineWithParam-1] = newFact + " " + splittedLine[1];
}
Here an executable example: https://dotnetfiddle.net/NVgETo
after this you can write the String[] file back to the real file.
Note: this will not modify the file, if in the given line the first parameter isn't a valid float!

Format custom numeric string with fixed character count

I need to convert any number in a fixed format with a fixed amount of characters. Means 1500 and -1.5 or 0.025 need to have the same length. I also have to give the format in this form: Format = "{???}";
When i type Format = "{0000}"; i can limit 1500 to "1500", but -1.5 -> "-0001.5" means i have too much numbers after the point.
Negative sign place can be done with Format = "{ 0.0;-0.0; 0.0}".
How can i fix the count of the numbers for different numbers?
The length of the string doesn't matter, the most important is the equal length.
Examples:
1500 -> " 1500.000" or " 1500"
-1500 -> "-1500.000" or "- 1500" or " -1500"
1.5 -> " 1.500" or " 1.5"
-0.25-> " -0.250" or "- 0.25"
0.00005 -> " 0.000" or " 0"
150000-> " 150000.0" or " 150000"
15000000 " 15000000"
Edit:
I want to Format an y-Axis of a Chart. I can't use something like value.ToString("???") i need to use chartArea.AxisY.LabelStyle.Format = "{???}";

Why don't use formatting? "F3" forces 3 digits after decimal point and PadLeft ensures the overall length
Double value = 1500.0;
// 3 digits after decimal point, 9 characters length
String result = value.ToString("F3").PadLeft(9, ' ');
0 -> 0.000
1500.0 -> 1500.000
-1500.0 -> -1500.000
-0.25 -> -0.250
Another (similar) possibility is String.Format:
Double value = 1500.0;
// Put value at place {0} with format "F4" aligned to right up to 9 symbols
String result = String.Format("{0:9,F4}", value);

Try it > result = Math.Round(yourValue, 3);
Check full reference here !

you cannot achieve this by a simple format function
string result = string.Empty;
var array = dec.ToString().Split('.');
if (dec > 0)
{
result = array[0].PadLeft(9).Remove(0, 9);
if (array.Count() > 1)
{
result += '.' + array[1].PadRight(3).Remove(3);
}
}
else
{
result = "-"+array[0].PadLeft(9).Remove(0, 9);
if (array.Count() > 1)
{
result += '.' + array[1].PadRight(3).Remove(3);
}
}

Add one space after every two characters and add a character infront of every single character

I want to add one space after every two characters, and add a character in front of every single character.
This is my code:
string str2;
str2 = str1.ToCharArray().Aggregate("", (result, c) => result += ((!string.IsNullOrEmpty(result) && (result.Length + 1) % 3 == 0) ? " " : "") + c.ToString());
I have no problems separating every two characters with one space, but how do I know if the separated string has an individual character, and add a character infront of that character?
I understand that my question is confusing as I'm not sure how to put what I want in words..
So I'll just give an example:
I have this string:
0123457
After separating every two characters with a space, I'll get:
01 23 45 7
I want to add a 6 infront of the 7.
Note: Numbers are dependent on user's input, so it's not always the same.
Thanks.

[TestMethod]
public void StackOverflowQuestion()
{
var input = "0123457";
var temp = Regex.Replace(input, #"(.{2})", "$1 ");
Assert.AreEqual("01 23 45 7", temp);
}

Try something like this:
static string ProcessString(string input)
{
StringBuilder buffer = new StringBuilder(input.Length*3/2);
for (int i=0; i<input.Length; i++)
{
if ((i>0) & (i%2==0))
buffer.Append(" ");
buffer.Append(input[i]);
}
return buffer.ToString();
}
Naturally you'd need to add in some logic about the extra numbers, but the basic idea should be clear from the above.

May be you can try, if i right understand your request,
String.Length % 2
if result is 0, you done with first iteration, if not, just add a character infront of last one.

I think this is what you asked for
string str1 = "3322356";
string str2;
str2 = String.Join(" ",
str1.ToCharArray().Aggregate("",
(result, c) => result += ((!string.IsNullOrEmpty(result) &&
(result.Length + 1) % 3 == 0) ? " " : "") + c.ToString())
.Split(' ').ToList().Select(
x => x.Length == 1
? String.Format("{0}{1}", Int32.Parse(x) - 1, x)
: x).ToArray());
result is "33 22 35 56"

Best way to Find which cell of string array contins text

I have a block of text that im taking from a Gedcom (Here and Here) File
The text is flat and basically broken into "nodes"
I am splitting each node on the \r char and thus subdividing it into each of its parts( amount of "lines" can vary)
I know the 0 address will always be the ID but after that everything can be anywhere so i want to test each Cell of the array to see if it contains the correct tag for me to proccess
an example of what two nodes would look like
0 #ind23815# INDI <<<<<<<<<<<<<<<<<<< Start of node 1
1 NAME Lawrence /Hucstepe/
2 DISPLAY Lawrence Hucstepe
2 GIVN Lawrence
2 SURN Hucstepe
1 POSITION -850,-210
2 BOUNDARY_RECT (-887,-177),(-813,-257)
1 SEX M
1 BIRT
2 DATE 1521
1 DEAT Y
2 DATE 1559
1 NOTE * Born: Abt 1521, Kent, England
2 CONT * Marriage: Jane Pope 17 Aug 1546, Kent, England
2 CONT * Died: Bef 1559, Kent, England
2 CONT
1 FAMS #fam08318#
0 #ind23816# INDI <<<<<<<<<<<<<<<<<<<<<<< Start of Node 2
1 NAME Jane /Pope/
2 DISPLAY Jane Pope
2 GIVN Jane
2 SURN Pope
1 POSITION -750,-210
2 BOUNDARY_RECT (-787,-177),(-713,-257)
1 SEX F
1 BIRT
2 DATE 1525
1 DEAT Y
2 DATE 1609
1 NOTE * Born: Abt 1525, Tenterden, Kent, England
2 CONT * Marriage: Lawrence Hucstepe 17 Aug 1546, Kent, England
2 CONT * Died: 23 Oct 1609
2 CONT
1 FAMS #fam08318#
0 #ind23817# INDI <<<<<<<<<<< start of Node 3
So a when im done i have an array that looks like
address , string
0 = "1 NAME Lawrence /Hucstepe/"
1 = "2 DISPLAY Lawrence Hucstepe"
2 = "2 GIVN Lawrence"
3 = "2 SURN Hucstepe"
4 = "1 POSITION -850,-210"
5 = "2 BOUNDARY_RECT (-887,-177),(-813,-257)"
6 = "1 SEX M"
7 = "1 BIRT "
8 = "1 FAMS #fam08318#"
So my question is what is the best way to search the above array to see which Cell has the SEX tag or the NAME Tag or the FAMS Tag
this is the code i have
private int FindIndexinArray(string[] Arr, string search)
{
int Val = -1;
for (int i = 0; i < Arr.Length; i++)
{
if (Arr[i].Contains(search))
{
Val = i;
}
}
return Val;
}
But it seems inefficient because i end up calling it twice to make sure it doesnt return a -1
Like so
if (FindIndexinArray(SubNode, "1 BIRT ") != -1)
{
// add birthday to Struct
I.BirthDay = SubNode[FindIndexinArray(SubNode, "1 BIRT ") + 1].Replace("2 DATE ", "").Trim();
}
sorry this is a longer post but hopefully you guys will have some expert advice

Can use the static method FindAll of the Array class:
It will return the string itself though, if that works..
string[] test = { "Sex", "Love", "Rock and Roll", "Drugs", "Computer"};
Array.FindAll(test, item => item.Contains("Sex") || item.Contains("Drugs") || item.Contains("Computer"));
The => indicates a lamda expression. Basically a method without a concrete implementation.
You can also do this if the lamda gives you the creeps.
//Declare a method
private bool HasTag(string s)
{
return s.Contains("Sex") || s.Contains("Drugs") || s.Contains("Computer");
}
string[] test = { "Sex", "Love", "Rock and Roll", "Drugs", "Computer"};
Array.FindAll(test, HasTag);

What about a simple regular expression?
^(\d)\s=\s\"\d\s(SEX|BIRT|FAMS){1}.*$
First group captures the address, second group the tag.
Also, it might be quicker to dump all array items into a string and do your regex on the whole lot at once.

"But it seems inefficient because i end up calling it twice to make sure it doesnt return a -1"
Copy the returned value to a variable before you test to prevent multiple calls.
IndexResults = FindIndexinArray(SubNode, "1 BIRT ")
if (IndexResults != -1)
{
// add birthday to Struct
I.BirthDay = SubNode[IndexResults].Replace("2 DATE ", "").Trim();
}

The for loop in method FindIndexinArray shd break once you find a match if you are interested in only the first match.