Reading (string)

  • Thread starter Thread starter csharpula csharp
  • Start date Start date
C

csharpula csharp

Hello,
I have a command line application and i want to read a string that
contains couple of words.I should read this line untill I reach a group
of charecters such as {b,c,d}.
How can I do it?
 
Hello,
I have a command line application and i want to read a string that
contains couple of words.I should read this line untill I reach a group
of charecters such as {b,c,d}.
How can I do it?
Click to expand...
Read in the whole line using Console.ReadLine(). Once you have the
whole line in memory then you can parse out the bits that you want for
your various purposes.

rossum
 
I think you are looking for something like the following.

================================================
class Program
{
static char[] terminatingChars = { 'b', 'c', 'd' };

static void Main(string[] args)
{

char input;

do
{
input = Convert.ToChar(Console.ReadKey().Key);
//The above line should be replaced with equivalent of
scanf("%c",c);

//what ever you want to do with the input ....
}while(Terminate(input));

Console.ReadLine();
}

public static bool Terminate(char inp)
{
foreach (char tc in terminatingChars)
if (tc == inp)
return false;

return true;
}

================================

I do not exactly know how to replace

input = Convert.ToChar(Console.ReadKey().Key);

with something like

scanf("%c",c ) as in C


Thanks
-Srinivas.
 
csharpula csharp said:
Hello,
I have a command line application and i want to read a string that
contains couple of words.I should read this line untill I reach a group
of charecters such as {b,c,d}.
How can I do it?
Click to expand...
Here is some code that will do the job. Regular expressions are your friend.
textout[0] will hold the string you want.


string textin = "This is one method to do it. a b c should be clipped";
Regex reg = new Regex("[cba]");

string[] textout = System.Text.RegularExpressions.Regex.Split(textin,
reg.ToString());

Console.WriteLine (textout[0]);

Console.ReadKey();



Roy Berube
 
Roy A Berube said:
string textin = "This is one method to do it. a b c should be clipped";
Regex reg = new Regex("[cba]");

string[] textout = System.Text.RegularExpressions.Regex.Split(textin,
reg.ToString());

Console.WriteLine (textout[0]);

Console.ReadKey();
Click to expand...
It might also help to declare this -

using System.Text.RegularExpressions;



Roy B
 
Thank you all but I have an update at my problem,I need to read the line
(including spaces) untill -a -b -c (string and not char).How to do it?
 
csharpula csharp said:
Thank you all but I have an update at my problem,I need to read the line
(including spaces) untill -a -b -c (string and not char).How to do it?
Click to expand...

Use the regex code I posted earlier, and replace the regex declararation
with this:
Regex reg = new Regex(@"-a -b -c");


It will then look for the exact match to what is inside the quotation marks.
Regular expressions can look cryptic, but are very powerful.
Roy Berube
 
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