Re: Is String.split() broken?

Hi Pete,

The pipe ( | ) character has to be escaped with a backslash. But guess
what? The backslash character also has to be escaped. So you need to make
the split delimiter "\\|".

This is the output of the following code:
1|20110226||||0|6068|6|33243.95|6062|35084323.55|0|0.00|0|0.00
[1, 20110226, , , , 0, 6068, 6, 33243.95, 6062, 35084323.55, 0, 0.00, 0,
0.00]

===========================
import java.util.*;

public class xxxSplit
{

public static void main( String[] args )
{
String[] as;

String s =
"1|20110226||||0|6068|6|33243.95|6062|35084323.55|0|0.00|0|0.00",
sDelimiter = "\\|";

as = s.split( sDelimiter );

System.out.println( s );
System.out.println( Arrays.toString( as ) );

} // end main

} // end class xxxSplit

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

HTH,


Joe Sam

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----- Original Message ----- From: "Pete Hall" <pete@xxxxxxxxxxxxxx>
Newsgroups: midrange.java400-l
To: <java400-l@xxxxxxxxxxxx>
Sent: Sunday, February 27, 2011 11:10 AM
Subject: Re: Is String.split() broken?

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On 2011-02-27 08:11, David Gibbs wrote:

On 2/26/2011 5:29 PM, Pete Hall wrote:

Why does this work:
String[] fields = errRecord.replace("|", "\t").split("\t");

While this does not:
String[] fields = errRecord.split("|");

Isn't '|' a regex operator?

Have you tried escaping the |? ("\|")

david

Yeah, tried that. It throws an exception if I ignore the editor error:
Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \\).

I've tried "\0x7c", "\u007C" and "\u7C00" too. The editor accepts those,
but they all return an array of String containing one element, which
includes all of the characters in the record, including the pipes. I
copied the pipe character from the variable window into V (hex viewer),
and it really is 0x7c. I even tried extracting the pipe from the record
with substring() and using the extracted delimiter in split(). It made
no difference.

An example errRecord looks like this:
1|20110226||||0|6068|6|33243.95|6062|35084323.55|0|0.00|0|0.00

I guess I'll just go with the two stage parse. Apparently split() has
some limitations.

- -- Pete Hall
pete@xxxxxxxxxxxxxx
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