i need your help!, i am working on a script that, takes the string from a text file that grabs a value from the text file 20 characters.
Now i want to add spaces in front of character that was grabbed from the text file. However, i want to apply it to the whole text file.
For example:
Text 1 A (input):
01253654758965475896N12345
012536547589654758960011223325
(output):
(added 10 spaces in front)01253654758965475896 N12345
(added 10 spaces in front)01253654758965475896 0011223325
The idea is to loop through them, i added 10x spaces in front of and then also added spaces after 01253654758965475896.
Here is my code:
class Program
{
[STAThread]
static void Main(string[] args)
{
int acc = 1;
string calcted = (acc++).ToString().PadLeft(20, '0');
string ft_space = new string(' ', 12);
string path = Console.ReadLine();
using (StreamReader sr = File.OpenText(path))
{
string s = "";
while ((s = sr.ReadToEnd()) != null)
{
string px = s;
string cnd = s.Substring(0, 16);
string cdr = cnd;
px = ft_space + cdr;
Console.Write("Enter Location:");
string pt1 = Console.ReadLine();
if (!File.Exists(pt1))
{
using (TextWriter sw = File.CreateText(pt1))
{
sw.Write(px);
}
}
} Console.ReadKey();
}
}
}
}
As noted in the comments, first change ReadToEnd to ReadLine.
ReadToEnd will read all the file, ReadLine will read one line every loop iteration.
Then, since you want 20 characters and not 16, you need to change s.Substring(0, 16) to s.Substring(0, 20).
After that you need to obtain the rest of the line, so that will be s.Substring(20).
You then need to concatenate all the parts together like this:
string result = spaces10 + first_part + spaces3 + second_part;
Another problem is that you just write the first line since you check if the file exists every time on the loop and you don't write the line if the file exists.
Here is how your code will look after such changes (and others):
string spaces10 = new string(' ', 10);
string spaces3 = new string(' ', 3);
string input_file = Console.ReadLine();
Console.Write("Enter Location:");
string output_file = Console.ReadLine();
using (StreamReader sr = File.OpenText(input_file))
{
using (TextWriter sw = File.CreateText(output_file))
{
string line;
while ((line = sr.ReadLine()) != null)
{
string first_part = line.Substring(0, 20);
string second_part = line.Substring(20);
string result = spaces10 + first_part + spaces3 + second_part;
sw.WriteLine(result);
}
}
}
Console.ReadKey();
Related
So I have the following code:
void ReadFromCsv()
{
using (var reader = new StreamReader(#"d:\test.csv", Encoding.Default))
{
List<string> listA = new List<string>();
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(';');
listA.Add(values[0]);
}
Console.WriteLine(listA);
}
}
which is reading from my csv file and an example of a line I get is:
50,2,10,201,10,9090339,24-OCT-21 09.38.38.679000 AM,123456789,24/10/2021 09:39:23,22/10/2021 09:39:37,Sm123456789-SM-20211031-VSR-000123.pdf,,,,,26/01/2022 13:08:58,,2,,0
first of all, why are there many commas around the end of the line?
second of all, what if I wanted to access the value "10" (which is the 5th value ) of that string line, is that possible?,
or going further, my task is to check for that 5th value and if its 5 for example, I'd want to take every row with 5thvalue=5 and create a csv for them, if 5thvalue=10 I want to create a csv for those records, and so on. but one task at a time, how do I access that value?
1: commas around the end of the line mean first item of lines is empty ""
2: you can get 5th value as below:
string _list = "50,2,10,201,10,9090339,24-OCT-21 09.38.38.679000 AM,123456789,24/10/2021 09:39:23,22/10/2021 09:39:37,Sm123456789-SM-20211031-VSR-000123.pdf,,,,,26/01/2022 13:08:58,,2,,0";
var fiveIndex = _list.Split(',')[4];
3:
then you can get list of lines that have a value of fiveIndex
var result =_list.Split(',').Select((v, i) => new { value = v, index = i }).Where(item => item.value == fiveIndex);
In your example, line 3 and line 5 have a value of 10(index=2, index=4). Then you can save these lines in csv file.
ended up doing:
string chargeMonth = DateTime.Now.ToString("yyyyMM");
var fileCreationDate = DateTime.Now.ToString("yyyyMMdd");
string fileCreationTime = DateTime.Now.ToString("HHmmss");
string constVal = "MLL";
string fileType = "HIYUV-CHEVRA";
string[] values;
string header, sumRow;
string line, compId;
string inputFile = "records.CSV";
Dictionary<string, System.IO.StreamWriter> outputFiles = new Dictionary<string, System.IO.StreamWriter>();
using (System.IO.StreamReader file = new System.IO.StreamReader("D:\\" + inputFile, Encoding.Default))
{
header = file.ReadLine();
while ((line = file.ReadLine()) != null)
{
values = line.Split(",".ToCharArray());
compId = values[3];
if (!outputFiles.ContainsKey(compId))
{
string outputFileName = constVal + "-" + fileType + "-" + (String.Format("{0:00000}", Int32.Parse(compId))) + "-" + chargeMonth + "-" + fileCreationDate + "-" + fileCreationTime + ".CSV";
outputFiles.Add(compId, new System.IO.StreamWriter("D:\\" + outputFileName));
outputFiles[compId].WriteLine(header);
}
outputFiles[compId].WriteLine(line);
}
}
foreach (System.IO.StreamWriter outputFile in outputFiles.Values)
{
outputFile.Close();
}
and the mission is done.
I Have one text file and I want to replaces all matches in each line, so I defined Pattern and I loop through to the text file after I want to write the result in another file, unfortunately my pattern is only replace first occurrence of the word what did |I do in a wrong way?
Content of text file:
"testebook kok o testebook\ntestbbb1232 joj ds testbbb1232"
using System.Text.RegularExpressions;
string filePath = "test.txt";
string fileNewPath = "test1.txt";
string ma = #"^test[0-9a-zA-Z]+";
string newString = string.Empty;
using(StreamReader sr = new(filePath)){
string line = sr.ReadLine();
while (line != null){
while(Regex.IsMatch(line, ma) != false){
line = Regex.Replace(line, ma, "");
}
newString += line + "\n";
line = sr.ReadLine();
}
}
using(StreamWriter sw = new(fileNewPath)){
sw.WriteLine(newString);
}
Your code is correct but your regex pattern is not correct.
you should write this:
string ma = #"test[0-9a-zA-Z]+";
The letter "^" has removed from pattern
So I modified My pattern and remove start with character and everything works now as desired
using System.Text.RegularExpressions;
string filePath = "test.txt";
string fileNewPath = "test1.txt";
MatchesFinder test = new(filePath, fileNewPath);
test.RunTheProcess();
class MatchesFinder{
private string filePath;
private string fileNewPath;
private string ma = #"test[a-zA-Z0-9]+";
public MatchesFinder(string filePath,string fileNewPath){
this.filePath = filePath;
this.fileNewPath = fileNewPath;
}
public void RunTheProcess(){
string newString = string.Empty;
using(StreamReader sr = new(filePath)){
string line = sr.ReadLine();
while (line != null){
while(Regex.IsMatch(line, ma) != false){
line = Regex.Replace(line, ma, string.Empty);
}
newString += line.TrimStart() + "\n";
line = sr.ReadLine();
}
}
using(StreamWriter sw = new(fileNewPath)){
sw.WriteLine(newString);
}
}
}
I think you don´t need to check IsMatch separately, just calling Regex.Replace should yield the same result.
Also, newString += line.TrimStart() + "\n"; means you´re copying all the lines you´ve already checked every time you append a new line. I´d either write directly to the output stream or at least use a StringBuilder if you really want to have the full file in memory for some reason.
Something like this:
using var sw = new StreamWriter(fileNewPath);
using var sr = new StreamReader(filePath);
var line = sr.ReadLine();
while (line != null){
line = Regex.Replace(line, ma, string.Empty);
sw.WriteLine(line.TrimStart());
line = sr.ReadLine();
}
I am trying to create a simple minifier because I am unsatisfied with the tools online. I have made a console application, but the problem is that nothing is removed, even though I split the text and remove /n and /t characters.
I've tried different methods of removing the whitespace.
static string restrictedSymbols = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,0123456789";
...
static void Compress(string command)
{
string[] commandParts = command.Split(' ');
string text = String.Empty;
try
{
using (StreamReader sr = new StreamReader(commandParts[1]))
{
text = sr.ReadToEnd();
text.Replace("\n", "");
text.Replace("\t", "");
string formattedText = text;
string[] splitText = text.Split(' ');
StringBuilder sb = new StringBuilder();
for (int i = 0; i < splitText.Length - 1; i++)
{
splitText[i].TrimStart();
StringBuilder tSB = new StringBuilder(splitText[i]);
if (splitText[i].Length > 1 && splitText[i + 1].Length > 1)
{
int textLength = splitText[i].Length - 1;
if (restrictedSymbols.Contains(splitText[i + 1][0]) && restrictedSymbols.Contains(splitText[i][textLength]))
{
tSB.Append(" ");
}
}
sb.Append(tSB.ToString());
}
sb.Append(splitText[splitText.Length - 1]);
text = sb.ToString();
Console.WriteLine(text);
}
} catch (IOException e)
{
Console.WriteLine(e.ToString());
}
if (text != String.Empty)
{
try
{
using (StreamWriter stream = File.CreateText(commandParts[2] + commandParts[3]))
{
stream.Write(text);
}
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
}
}
Console.WriteLine("Process Complete...");
GetCommand();
}
It should print output a minified file, but it just outputs the same exact file that I put in.
Ignoring any other problem, Replace by it self does nothing
Returns a new string in which all occurrences of a specified Unicode character or String in the current string are replaced with
another specified Unicode character or String.
So basically you are ignoring any changes by not keeping the return value
At minimum you will need to do something like this
text = text.Replace("\n", "");
You're replacing the characters, but then doing nothing with it.
Your code should be:
text = text.Replace("\n", "");
text = text.Replace("\t", "");
I have a C# script which takes in two CSV files as input, combines the two files, performs numerous calculations on them, and writes the result in a new CSV file.
These two input CSV file names are declared as variables and are used in the C# script by accessing those variable names.
The data in the input CSV files looks like this:
Since the data has values in thousands and millions, line splits in the C# code are truncating the data incorrectly. For instance a value of 11,861 appears only as 11 and 681 goes in the next columns.
Is there any way in C#, by which I can specify a text qualifier (" in this case) for the two files ?
Here is the C# code snippet:
string[,] filesToProcess = new string[2, 2] { {(String)Dts.Variables["csvFileNameUSD"].Value,"USD" }, {(String)Dts.Variables["csvFileNameCAD"].Value,"CAD" } };
string headline = "CustType,CategoryType,CategoryValue,DataType,Stock QTY,Stock Value,Floor QTY,Floor Value,Order Count,Currency";
string outPutFile = Dts.Variables["outputFile"].Value.ToString();
//Declare Output files to write to
FileStream sw = new System.IO.FileStream(outPutFile, System.IO.FileMode.Create);
StreamWriter w = new StreamWriter(sw);
w.WriteLine(headline);
//Loop Through the files one by one and write to output Files
for (int x = 0; x < filesToProcess.GetLength(1); x++)
{
if (System.IO.File.Exists(filesToProcess[x, 0]))
{
string categoryType = "";
string custType = "";
string dataType = "";
string categoryValue = "";
//Read the input file in memory and close after done
StreamReader sr = new StreamReader(filesToProcess[x, 0]);
string fileText = sr.ReadToEnd();
string[] lines = fileText.Split(Convert.ToString(System.Environment.NewLine).ToCharArray());
sr.Close();
where csvFileNameUSD and csvFileNameCAD are variables with values pointing to their locations.
Well, based on the questions you have answered, this ought to do what you want to do:
public void SomeMethodInYourCodeSnippet()
{
string[] lines;
using (StreamReader sr = new StreamReader(filesToProcess[x, 0]))
{
//Read the input file in memory and close after done
string fileText = sr.ReadToEnd();
lines = fileText.Split(Convert.ToString(System.Environment.NewLine).ToCharArray());
sr.Close(); // redundant due to using, but just to be safe...
}
foreach (var line in lines)
{
string[] columnValues = GetColumnValuesFromLine(line);
// Do whatever with your column values here...
}
}
private string[] GetColumnValuesFromLine(string line)
{
// Split on ","
var values = line.Split(new string [] {"\",\""}, StringSplitOptions.None);
if (values.Count() > 0)
{
// Trim leading double quote from first value
var firstValue = values[0];
if (firstValue.Length > 0)
values[0] = firstValue.Substring(1);
// Trim the trailing double quote from the last value
var lastValue = values[values.Length - 1];
if (lastValue.Length > 0)
values[values.Length - 1] = lastValue.Substring(0, lastValue.Length - 1);
}
return values;
}
Give that a try and let me know how it works!
You posted a very similar looking question few days ago. Did that solution not help you?
If so, what issues are you facing on that. We can probably help you troubleshoot that as well.
I need to extract some data from a text file and insert to columns in excel sheet. I know how to do this if the rows and the length of the string is known.
try
{
using (System.IO.StreamReader sr = new System.IO.StreamReader("test.txt")
{
string line;
while ((line = sr.ReadLine()) != null)
{
listSNR.Items.Add(line.Substring (78,4));
}
}
}
But the particular text file is complex and the starting index or the length cannot be provided. But the starting word (PCPU01) of the row is known.
Eg: PCPU01,T2716,0.00,0.01,0.00,0.00
output:
T2716 0 0.01 0 0
In that case can somebody please let me know how to extract the texts?
using(System.IO.StreamReader sr = new System.IO.StreamReader("test.txt"))
{
string line;
while((line = sr.ReadLine()) != null)
{
string[] split = line.Split(',');
//...
}
}
split[0] will return "PCPU01", split[1] "T2716" and so on.
You can split one string into an array of strings, separated by a given character. This way, you could split the source string by a comma and use the resulting strings to build your output. Example:
string source = "PCPU01,T2716,0.00,0.01,0.00,0.00";
string[] parts = source.Split(',');
StringBuilder result = new StringBuilder();
result.Append(parts[1]); // The second element in the array, i.e. T2716
result.Append(" ");
result.Append(parts[2]); // 0.00
... // And so on...
return result.ToString() // return a string, not a StringBuilder
I hope this helps a little bit. You might have to tweak it to your needs. But this is a higher level code that gives you general idea of extracting data off a notepad.
DialogResult result = openFileDialog.ShowDialog();
Collection<Info> _infoCollection = new Collection<Info>();
Collection<string> listOfSubDomains = new Collection<string>();
string[] row;
string line;
// READ THE FILE AND STORE IT IN INFO OBJECT AND STORE TAHT INFO OBJECT IN COLLECTION
try
{
using (StreamReader reader = new StreamReader(openFileDialog.FileName))
{
while((line = reader.ReadLine()) != null)
{
Info _info = new Info();
row = line.Split(' ');
_info.FirstName = row[0];
_info.LastName = row[1];
_info.Email = row[2];
_info.Id = Convert.ToInt32(row[3]);
_infoCollection.Add(_info);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
thanks for the answers. What i wanted is to identify the particular line in the text file and split the line into columns. So i was able to do this by calling a GetLine method:
string line15=GetLine(#"test.txt",15);
public string GetLine(string fileName, int line)
{
using (System.IO.StreamReader ssr = new System.IO.StreamReader("test.txt"))
//using (var ssr = new StreamReader("test.txt"))
{
for (int i = 1; i < line; i++)
ssr.ReadLine();
return ssr.ReadLine();
}
}
Then i splitted this line by using the delimiter (,)
This was my approach in C#. It takes a string input (which you can get out of a text file) and an int with which line you want to get. It then separates the string at a given seperator char to a list which in turn is then read out. If the given line number is lower than the count of the created list, the entry is given back.
public string GetLine(string multiline,int line)
{
List<string> lines = new List<string>();
lines = multiline.Split('\n').ToList<string>();
return lines.Count >= line ? lines[line] : "";
}