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How do I recognize a particular type of quotation mark set in C#?

Posted on 2009-04-08
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Last Modified: 2013-12-17
This question is a result from the question asked here:
http://www.experts-exchange.com/Programming/Languages/C_Sharp/Q_24295748.html

It seems that quotation marks are not all the same.  How would I parse through different sets of quotation marks?  I use a StreamReader to read a file "C:\sample.csv" into a string "buffer" (line by line), then split this string by commas.

How can I detect the particular set of commas that are open (\\), straight (||), and closed (//)?
using (StreamReader reader = new StreamReader("C:\\sample.csv")) {
                string buffer;
 
                // Iterate through all lines
                while ((buffer = reader.ReadLine()) != null) {
                    string[] lineValues = buffer.Split(',');
 
                                    // Find the value with the first set of quotation marks
/**** EXPERTS-EXCHANGE - this is not picking up my expected set of question marks! ****/.
                                    while (!lineValues[i].Contains("\"")) 
                                        i++;
 
...

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Question by:hyliandanny
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5 Comments
 
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Expert Comment

by:HarryNS
ID: 24104024
string delimeter = ",";
StreamReader reader = new StreamReader(file);
//read the first line in and split it into columns
string[] columns = reader.ReadLine().Split(delimeter.ToCharArray());
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Author Comment

by:hyliandanny
ID: 24104258
Even using the delimiter, as HarryNS suggested, results in the data being read as:

"ýJohnson"
" Joeý "

where the ý is actually a pair of quotation marks...
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Author Comment

by:hyliandanny
ID: 24104262
Althought it is "ý" in the comments, that copy/paste is actually a square when viewed in the debugger.
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Accepted Solution

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hyliandanny earned 0 total points
ID: 24104295
I found the problem.  Perhaps it will help you all avoid any similar mistakes in the future.

The sample format was given to me in a Microsoft Word document.  Consequently, when creating the CSV data sample I would test with, I copied and pasted the quotation mark characters within the sample from Microsoft Word into notepad.

This embellished, MS-Word-specific character is NOT equivalent to the quotation marks in the code.  That is why it was never picking it up.
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