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https://issues.apache.org/jira/browse/CSV-288?focusedWorklogId=727141&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-727141
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ASF GitHub Bot logged work on CSV-288:
--------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Feb/22 16:43
            Start Date: 15/Feb/22 16:43
    Worklog Time Spent: 10m 
      Work Description: angusdev opened a new pull request #216:
URL: https://github.com/apache/commons-csv/pull/216


   Jira Issue: https://issues.apache.org/jira/browse/CSV-288
   
   When checking if last token is delimiter in below line of code
   ```java
   // did we reach eof during the last iteration already ? EOF
   if (isEndOfFile(lastChar) || !isDelimiter(lastChar) && isEndOfFile(c)) { 
   ```
   `isDelimiter(lastChar)` unintentionally advance the buffer pointer and 
consume the first `"|"` when it comes to the `"b"` in `"a||b||c"` (lastChar is 
`"|"`, nextChar is also `"|"`, make it `"||"`). Subsequent read will see `"|c"` 
instead of `"||c"` so the second token is `"b|c"`
   
   To fix it, create a new indicator `isLastTokenDelimiter` instead of using 
`isDelimiter(lastChar)`, the indicator is set/reset in `isDelimiter()`


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 727141)
    Remaining Estimate: 0h
            Time Spent: 10m

> String delimiter (||) is not working as expected.
> -------------------------------------------------
>
>                 Key: CSV-288
>                 URL: https://issues.apache.org/jira/browse/CSV-288
>             Project: Commons CSV
>          Issue Type: Bug
>            Reporter: Santhsoh
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Steps to reproduce  : 
> 1. Parse CSV file with || as delimiter and having empty columns
> 2. Print the CSVRecord resulting from CSVParser
>  
> //Expected : a,b,c,d,,f,g 
> // Actual : a,b|c,d,|f,g
> public static void main(String[] args) throws Exception\{
>      String row = "a||b||c||d||||f||g";
>      StringBuilder stringBuilder = new StringBuilder();
>      try (CSVPrinter csvPrinter = new CSVPrinter(stringBuilder, 
> CSVFormat.EXCEL);
>           CSVParser csvParser = CSVParser.parse(new StringInputStream(row), 
> StandardCharsets.UTF_8, 
> CSVFormat.Builder.create().setDelimiter("||").build())) {
>          for (CSVRecord csvRecord : csvParser) {
>              for (int i = 0; i < csvRecord.size(); i++) {
>                  csvPrinter.print(csvRecord.get(i));
>              }
>              System.out.println(stringBuilder.toString());
>              //Expected : a,b,c,d,,f,g
>             // Actual : a,b|c,d,|f,g
>          }
>      }
>  }
> With the snippet provided above, actual value is not same as expected value



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