Imagine we have a string as :
String mystring = "A,B,C,D";
I would like to add an apostrophe before and after each word in my string.Such as:
"'A','B','C','D'"
How can i achieve that?
What's your definition of a word? Anything between commas?
First get the words:
var words = mystring.Split(',');
Then add the apostrophes:
words = words.Select(w => String.Format("'{0}'", w));
And turn them back into one string:
var mynewstring = String.Join(",", words);
mystring = "'" + mystring.replace(",", "','") + "'";
I would let each "word" be determined by the regex \b word boundary. So, you have:
var output = Regex.Replace("A,B,C,D", #"(\b)", #"'$1");
string str = "a,b,c,d";
string.Format("'{0}'", str.Replace(",", "','"));
or
string str = "a,b,c,d";
StringBuilder sb = new StringBuilder(str.Length * 2 + 2);
foreach (var c in str.ToCharArray())
{
sb.AppendFormat((c == ',' ? "{0}" : "'{0}'"), c);
}
str = sb.ToString();
string mystring = "A,B,C,D";
string[] array = mystring.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
string newstring = "";
foreach (var item in array)
{
newstring += "'" + item + "',";
}
newstring = newstring.Remove(newstring.Length - 1);
Console.WriteLine(newstring);
Output will be;
'A','B','C','D'
Here a DEMO.
Or more simple;
string mystring = "A,B,C,D";
Console.WriteLine(string.Format("'{0}'", mystring.Replace(",", "','")));
you can use regular expressions to solve this problem
like this:
string words= "A,B,C,D";Regex reg = new Regex(#"(\w+)");words = reg.Replace(words, match=> { return string.Format("'{0}'", match.Groups[1].Value); });
Related
I have string:
string mystring = "hello(hi,mo,wo,ka)";
And i need to get all arguments in brackets.
Like:
hi*mo*wo*ka
I tried that:
string res = "";
string mystring = "hello(hi,mo,wo,ka)";
mystring.Replace("hello", "");
string[] tokens = mystring.Split(',');
string[] tokenz = mystring.Split(')');
foreach (string s in tokens)
{
res += "*" + " " + s +" ";
}
foreach (string z in tokenz)
{
res += "*" + " " + z + " ";
}
return res;
But that returns all words before ",".
(I need to return between
"(" and ","
"," and ","
"," and ")"
)
You can try to use \\(([^)]+)\\) regex get the word contain in brackets,then use Replace function to let , to *
string res = "hello(hi,mo,wo,ka)";
var regex = Regex.Match(res, "\\(([^)]+)\\)");
var result = regex.Groups[1].Value.Replace(',','*');
c# online
Result
hi*mo*wo*ka
This way :
Regex rgx = new Regex(#"\((.*)\)");
var result = rgx.Match("hello(hi,mo,wo,ka)");
Split method has an override that lets you define multiple delimiter chars:
string mystring = "hello(hi,mo,wo,ka)";
var tokens = mystring.Replace("hello", "").Split(new[] { "(",",",")" }, StringSplitOptions.RemoveEmptyEntries);
Using ASP.NET C#, I need to find and replace the word string1 between the last two slashes and replace with string2
Example:
string fullStr = "/this/is/string1/part";
string subStr = "function";
string finalStr = "/this/is/" + subStr + "/part";
And a regex solution:
string fullStr = "this/is/string1/part";
string subStr = "function";
var newstr = Regex.Replace(fullStr, #"/[^/]+/(?=[^/]+$)", m => "/" + subStr + "/");
I don't feel a need of regex here.
string fullStr = "/this/is/string1/part";
string subStr = "function";
string[] fullStrParts = fullStr.Split('/');
fullStrParts[fullStrParts.Length - 2] = subStr;
string finalStr = string.Join("/", fullStrParts);
I need to convert a string i.e. "hi" to & #104;& #105; is there a simple way of doing this? Here is a website that does what I need. http://unicode-table.com/en/tools/encoder/
Try this:
var s = "hi";
var ss = String.Join("", s.Select(c => "&#" + (int)c + ";"));
Try this:
string myString = "Hi there!";
string encodedString = myString.Aggregate("", (current, c) => current + string.Format("&#{0};", Convert.ToInt32(c)));
Based on the answer to this question:
static string EncodeNonAsciiCharacters(string value)
{
StringBuilder sb = new StringBuilder();
foreach (char c in value)
{
string encodedValue = "&#" + ((int)c).ToString("d4"); // <------- changed
sb.Append(encodedValue);
}
return sb.ToString();
}
How can I convert this list of strings to comma separated value enclosed within quotes without any escape characters?
{"apple", "berry", "cherry"} => well, ""apple", "berry", "cherry""
If I understood you correctly,
"\"" + String.Join("\", \"", new string[]{"apple","berry","cherry"}) + "\"";
or, alternatively,
String.Format("\"{0}\"", String.Join("\", \"", new string[] {"apple","berry","cherry"}));
Read more on System.String.Join(...).
Hope this will do the job
var ar = new []{ "apple", "berry", "cherry" };
var separator = "\",\"";
var enclosingTag = "\"";
Console.WriteLine ( enclosingTag + String.Join(separator, ar) + enclosingTag );
If you are using C#:
using System;
string[] arr = new string[] { "apple", "berry", "cherry" };
string sep = "\",\"";
string enclosure = "\"";
string result = enclosure + String.Join(sep, arr) + enclosure;
I currently have the following code:
string user = #"DOMAIN\USER";
string[] parts = user.Split(new string[] { "\\" }, StringSplitOptions.None);
string user = parts[1] + "#" + parts[0];
Input string user can be in one of two formats:
DOMAIN\USER
DOMAIN\\USER (with a double slash)
Whats the most elegant way in C# to convert either one of these strings to:
USER#DOMAIN
Not sure you would call this most elegant:
string[] parts = user.Split(new string[] {"/"},
StringSplitOptions.RemoveEmptyEntries);
string user = string.Format("{0}#{1}", parts[1], parts[0]);
How about this:
string user = #"DOMAIN//USER";
Regex pattern = new Regex("[/]+");
var sp = pattern.Split(user);
user = sp[1] + "#" + sp[0];
Console.WriteLine(user);
A variation on Oded's answer might use Array.Reverse:
string[] parts = user.Split(new string[] {"/"},StringSplitOptions.RemoveEmptyEntries);
Array.Reverse(parts);
return String.Join("#",parts);
Alternatively, could use linq (based on here):
return user.Split(new string[] {"/"}, StringSplitOptions.RemoveEmptyEntries)
.Aggregate((current, next) => next + "#" + current);
You may try this:
String[] parts = user.Split(new String[] {#"\", #"\\"}, StringSplitOptions.RemoveEmptyEntries);
user = String.Format("{0}#{1}", parts[1], parts[0]);
For the sake of adding another option, here it is:
string user = #"DOMAIN//USER";
string result = user.Substring(0, user.IndexOf("/")) + "#" + user.Substring(user.LastIndexOf("/") + 1, user.Length - (user.LastIndexOf("/") + 1));