Develop Reference

Get specific data from a line of text

I need to extract the following data (in bold) from the text line below and put it into a data grid;
PERS tooldata t_rrt_ja03579:=[TRUE,[[-39.643,-0.001,1025.49],[0.382684,-0.000130001,-0.923889,0.000120001]],[200.9,[-88.1,-12.6,359.7],[1,0,0,0],29.347,50.927,18.261]];
This line is read from a file. I have managed to trim the line so it gets rid of the "PERS tooldata" and whitespaces and it leaves me with the tool name. I have it bound to data in a datagrid elsewhere in the code which is step 1 complete.
My question is how can I extract the values in bold individually and place them in to double data declarations? The first block of values (-39.643,-0.001,1025.49) is a X,Y,Z co-ordinate value and the second (0.382684,-0.000130001,-0.923889,0.000120001) are Q1,Q2,Q3,Q4.
Below is how i done the name
private void AutoFillToolData(object sender, RoutedEventArgs e)
{
// Gives user option to auto populate datagrid
var AutoFillToolResult = MessageBox.Show("Do you want to auto populate fields?", "Tool Data", MessageBoxButton.YesNo);
if (AutoFillToolResult == MessageBoxResult.Yes)
{
// User directs application to the specified file
System.Windows.Forms.FolderBrowserDialog folderBrowser = new System.Windows.Forms.FolderBrowserDialog();
if (folderBrowser.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// Application looks for specific file and removes unwanted data
string robotBackupPath = folderBrowser.SelectedPath;
string allDataPath = robotBackupPath + #"\RAPID\TASK1\SYSMOD\ALL_DATA.sys";
string[] tLines = File.ReadAllLines(allDataPath);
List<string> toolDataLines = new List<string>();
foreach (string tLine in tLines)
{
if (tLine.Contains("PERS tooldata") && !tLine.StartsWith("!"))
{
if (tLine.Contains("tToolChanger")) continue;
if (tLine.Contains("tPointer")) continue;
if (tLine.Contains("tHome")) continue;
toolDataLines.Add(tLine);
}
}
foreach (string line in toolDataLines)
{
// Gets the name of the tool
ToolData toolData = GetToolNameFromLine(line);
// Puts the tool name in the DataGrid
TCPData.Add(toolData);
}
}
}
}
private ToolData GetToolNameFromLine(string line)
{
// Removes white space at the beggining of line in txt file
ToolData tooldata = new ToolData();
string[] spaceSplit = line.Trim().Split(' ');
string values = spaceSplit[2];
// Gets Tool Name
int colonLocation = values.IndexOf(":");
tooldata.ToolName = values.Substring(0, colonLocation);
return tooldata;
}

If all the samples you'll have follow the same pattern, extracting those values does not seem difficult:
//First we get all the string after the :=
string tooldata = line.Substring(data.IndexOf(":=") + 2) ;
//Split the string by [
string[] tooldataArray = tooldata.Split(new char[] { '[' }, StringSplitOptions.RemoveEmptyEntries);
//the second and the third strings are what we are interested in
string xyzValue = tooldataArray[1].Replace(']' ,' ');
string Q1234value = tooldataArray[2].Replace(']', ' ');
If after this you want to get the individual parameters, just splitting by , would do.
Edit
This would extract all the values you want to arrays of double:
string tooldata = data.Substring(data.IndexOf(":=") + 2) ;
string[] tooldataArray = tooldata.Split(new char[] { '[' }, StringSplitOptions.RemoveEmptyEntries);
double[] xyzValue = tooldataArray[1].Replace(']' ,' ')
.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => double.Parse(s, CultureInfo.InvariantCulture))
.ToArray();
double[] Q1234value = tooldataArray[2].Replace(']', ' ')
.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => double.Parse(s, CultureInfo.InvariantCulture))
.ToArray();

How to use Linq to Split a String on newlines and space?

I have a string:
string data =
"item1 actived
item2 none
item special I none
item special II actived"
you can see 4 rows in the data.
I need to split a string into a List item as below:
item[0]={Name=item1, Status=actived}
item[1]={Name=item2, Status=none}
item[2]={Name=item Special I, Status=none}
item[3]={Name=item Special II, Status=actived}
I'm tried:
var s = SplitReturn(data);
public string[] SplitReturn(string name)
{
return name.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
}
How do I can Split space in my string and then convert to List?

string data =
#"item1 actived
item2 none
item special I none
item special II actived";
var result = data.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)
.Select(item => {
int lastSpace = item.LastIndexOf(' ');
return new
{
Name = item.Substring(0, lastSpace).Trim(),
Status = item.Substring(lastSpace, item.Length - lastSpace).Trim()
}; }).ToList();

How to find largest word that starts with a capital and add a separator and space

I have code that finds largest word that starts with a capital letter. But I need that word to add a separator and space. Any ideas how I should do it properly?
char[] skyrikliai = { ' ', '.', ',', '!', '?', ':', ';', '(', ')', '\t' };
string eilute = "Arvydas (g. 1964 m. gruodzio 19 d. Kaune)– Lietuvos, krepsininkas, olimpinis ir pasaulio cempionas, nuo 2011 m. spalio 24 d.";
static string Ilgiausias(string eilute, char[] skyrikliai)
{
string[] parts = eilute.Split(skyrikliai,
StringSplitOptions.RemoveEmptyEntries);
string ilgiaus = "";
foreach (string zodis in parts)
if ((zodis.Length > ilgiaus.Length) && (zodis[0].ToString() == zodis[0].ToString().ToUpper()))
ilgiaus = zodis;
return ilgiaus;
}
It should find word Lietuvos and add , and space
Result should be "Lietuvos, "

I would use LINQ for that:
var ilgiaus = parts.Where(s => s[0].IsUpper())
.OrderByDescending(s => s.Length)
.FirstOrDefault();
if(ilgiaus != null) {
return ilgiaus + ", ";
}

Also you can use regex and linq. You dont need to split by many characters.
Regex regex = new Regex(#"[A-Z]\w*");
string str = "Arvydas (g. 1964 m. gruodzio 19 d. Kaune)– Lietuvos, krepsininkas, olimpinis ir pasaulio cempionas, nuo 2011 m. spalio 24 d.";
string longest = regex.Matches(str).Cast<Match>().Select(match => match.Value).MaxBy(val => val.Length);
if you dont want to use MoreLinq, instead of MaxBy(val => val.Length) you can do OrderByDescending(x => x.Length).First()

There are probably more ingenious and elegant ways, but the following pseudocode should work:
List<String> listOfStrings = new List<String>();
// add some strings to the generic list
listOfStrings.Add("bla");
listOfStrings.Add("foo");
listOfStrings.Add("bar");
listOfStrings.Add("Rompecabeza");
listOfStrings.Add("Rumpelstiltskin");
. . .
String longestWorld = String.Empty;
. . .
longestWord = GetLongestCapitalizedWord(listOfStrings);
. . .
private String GetLongestCapitalizedWord(List<String> listOfStrings)
{
foreach (string s in listofstrings)
{
if ((IsCapitalized(s) && (s.Len > longestWord.Len)))
{
longestWord = s;
}
}
}
private bool IsCapitalized(String s)
{
return // true or false
}

How to split this string to array?

I have string (from a file):
[\x22thanh\x22,
[[\x22thanh\\u003Cb\\u003E nien\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E ca\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E nhan\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E thao\\u003C\\/b\\u003E\x22,0,[]]
]
I saved this string to a variable name "s". I want split all strings betwen "[\x22" and "\x22," then save to an array named "s2". How I can do this? Thank you very much!

You can do as following :
var myArray = myString.Split("[\x22");
Do you want to remove the last characters aswell?

string[] s2 = s.Split(new string[] {#"[\x22", #"\x22"},
StringSplitOptions.RemoveEmptyEntries);

string s = #"[\x22thanh\x22,
[[\x22thanh\\u003Cb\\u003E nien\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E ca\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E nhan\\u003C\\/b\\u003E\x22,0,[]],
[\x22thanh\\u003Cb\\u003E thao\\u003C\\/b\\u003E\x22,0,[]]
]";
string start = #"[\x22";
string end = #"\x22";
int pos = -1;
List<string> list = new List<string>();
while ((pos = s.IndexOf(start)) > -1)
{
s = s.Substring(pos + start.Length);
if ((pos = s.IndexOf(end)) > -1)
{
list.Add(s.Substring(0, pos));
s = s.Substring(pos + end.Length);
}
else
break;
}
string[] s2 = list.ToArray();
EDIT
Same result using Split:
string[] s2 = s.Split(new string[] { #"[\x22" },
StringSplitOptions.RemoveEmptyEntries)
.Select(i => i.Substring(0, i.IndexOf(#"\x22")))
.ToArray();

You can find the position of first \x22 and next \x22 string. Next, you should copy the text beetween that position. You can get position using IndexOf method.

Split strings from a text file

I have the following strings in a text file "test"
Table Name.type
Market Drinks.tea
I wana split the strings so that I get the following output
ObjectName = Table AttributeName = Name Attribute Type =type
ObjectName = Market AttributeName = Drinks Attribute Type =tea
here is my code
string[] lines = File.ReadAllLines(#"d:\test.txt");
int i = 0;
var items = from line in lines
where i++ != 0
select new{
objectName = line.Split(new char[] {' '})[0],
attrName = line.Split(new char[]{'.'})[1],
attrType = line.Split(new char[] { ' ' })[2]
};
foreach (var item in items)
{
Console.WriteLine("ObjectName = {0}, AttributeName = {1}, Attribute Type = {2}",
item.objectName, item.attrName, item.attrType);
}
I'm getting an out of boundaries exception.
PS: there are no spaces at the end of the strings in the text file I just wanted to test a character!

You don't need the new char[] { ... } surrounding because String.Split() uses params
To fix the index-out-of-bounds, the last part of the select should become:
attrType = line.Split(' ', '.' )[2]
Edit
And thanks to #Kobi, a let will let you do the Split just once, a great improvement when you have many rows and/or columns.
var items = from line in lines
where i++ != 0
let words = line.Split(' ', '.')
select new
{
objectName = words[0],
attrName = words[1],
attrType = words[2]
};
Old answer
You can use the same Split for all 3 parts, making it a little easier to read:
select new{
objectName = line.Split(' ', '.' )[0],
attrName = line.Split(' ', '.' )[1],
attrType = line.Split(' ', '.' )[2]
};

Use regular expressions which is more robust:
static void Main()
{
const string PATTERN = #"^([\w]+)\s+([\w]+)\.(\w+)";
const string TEXT = "Table Name.type\r\nMarket Drinks.tea";
foreach (Match match in Regex.Matches(TEXT, PATTERN, RegexOptions.Multiline))
{
Console.WriteLine("ObjectName = {0} AttributeName = {1} Attribute Type ={2}",
match.Groups[1].Value, match.Groups[2].Value, match.Groups[3].Value);
}
}
Outputs:
ObjectName = Table AttributeName = Name Attribute Type =type
ObjectName = Market AttributeName = Drinks Attribute Type =tea

On the splitting part, you should do it like this (provided you are sure your input is in the correct format):
attrName = line.Split(' ')[1].Split('.')[0],
attrType = line.Split(' ')[1].Split('.')[1]

The out of bounds is on this line - attrType = line.Split(new char[] { ' ' })[2]
your attrType should be = line.Split(new char[] { '.' } )[1];
attrName should be = line.Split(new char[] {' '})[1].Split(new char[] {'.'})[0]
As Henk Holterman has said, you dont need to use new char[] inside split so your lines would be -
attrType = line.Split('.')[1];
attrName = line.Split(' ')[1].Split('.')[0];

thx to the replies here is the right answer for the desired output
objectName = line.Split(' ')[0],
attrName = line.Split(' ')[1].Split('.')[0],
attrType = line.Split('.')[1]

if you want to do in this way just use Regex its more flexible
const string pattern = #"(?<objectName>\w+)\s(?<attrName>\w+)\.(?<attrType>\w+)";
string[] lines = File.ReadAllLines(#"e:\a.txt");
var items = from line in lines
select new
{
objectName = Regex.Match(line, pattern).Groups["objectName"].Value,
attrName = Regex.Match(line, pattern).Groups["attrName"].Value,
attrType = Regex.Match(line, pattern).Groups["attrType"].Value
};
foreach (var item in items.ToList())
{
Console.WriteLine("ObjectName = {0}, AttributeName = {1}, Attribute Type = {2}",
item.objectName, item.attrName, item.attrType);
}