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From "Bjoern Voigt (JIRA)" <j...@apache.org>
Subject [jira] Updated: (SANDBOX-313) Endless loops in CSV parser
Date Mon, 21 Sep 2009 20:01:16 GMT

     [ https://issues.apache.org/jira/browse/SANDBOX-313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bjoern Voigt updated SANDBOX-313:
---------------------------------

    Attachment: apache-csv-endlessloop-fix.patch

The patch stops the loop, if End-of-file is detected.

> Endless loops in CSV parser
> ---------------------------
>
>                 Key: SANDBOX-313
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-313
>             Project: Commons Sandbox
>          Issue Type: Bug
>          Components: CSV
>    Affects Versions: Nightly Builds
>            Reporter: Bjoern Voigt
>         Attachments: apache-csv-endlessloop-fix.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> If the input file ends with comment lines, the parser runs into an endless loop. The
example shows, that the CSV parser runs into an endless loop, if the input is one comment
line. '#' is the comment character here:
> {noformat}
> import org.apache.commons.csv.CSVStrategy;
> import org.apache.commons.csv.CSVParser;
> import java.io.StringReader;
> import java.io.IOException;
> public class TestCSV {
>     public static void main(String [] args) throws IOException {
>         CSVStrategy strategy=new CSVStrategy(',','"','#','\\',false,false,false,false);
>         
>         CSVParser parser = new CSVParser(new StringReader("# A, B\n"), strategy);
>         
>         System.out.println("Go into an endless loop...");
>         String []line=parser.getLine();
>     }
> }
> {noformat} 

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