[CSV-31] CSVParser hangs (goes into infinite loop) on getLine() if it's a "comment" line that doesn't contain a delimiter

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Fix Version/s: 1.0
• Component/s: Parser
• Assignee: Unassigned
• Reporter: Toli Kuznets
• Created: 10/Jan/11 23:03
• Updated: 14/Aug/14 20:06
• Resolved: 10/Nov/11 00:55

Description

if you call CSVParser.getLine() or nextToken() with a line that is a comment as defined by the CSVStrategy but it doesn't contain the delimiter character, the call hangs in an infinite loop

This code will hang:

        parser = new CSVParser(new StringReader("# abc\n"), new CSVStrategy('\t', '\'', '#'));
        tokens = parser.getLine();

However, if you insert a delimiter char into the incoming string, it'll come through and return an empty string as a result:

        CSVParser parser = new CSVParser(new StringReader("#\tabc"), new CSVStrategy('\t', '\'', '#'));
        String[] tokens = parser.getLine();
        System.out.println("result: "+Arrays.toString(tokens));

It gets stuck in an infinite loop in CSVParser.nextToken() in the loop around line 347

Issue Links

• is duplicated by: CSV-37 CSVParser hangs (goes into infinite loop) on getLine() if it's a "comment" line that doesn't contain a delimiter