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https://issues.apache.org/jira/browse/CASSANDRA-2623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030611#comment-13030611
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rday commented on CASSANDRA-2623:
---------------------------------

In the Cli.g file the string literal does not allow for escaped characters.

http://svn.apache.org/repos/asf/cassandra/trunk/src/java/org/apache/cassandra/cli/Cli.g


StringLiteral
    :
    '\'' (~'\'')* '\'' ( '\'' (~'\'')* '\'' )*
    ;


I'm not sure yet what is the purpose of the repeating last half of the 
expression.
Attempts to allow escaped characters seemed to cause other problems, still 
investigating that.




> CLI escaped single quote parsing gives errors
> ---------------------------------------------
>
>                 Key: CASSANDRA-2623
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2623
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 0.7.2, 0.7.5
>         Environment: windows vista, linux
>            Reporter: rday
>            Assignee: Pavel Yaskevich
>              Labels: cli
>
> Escaping quotes in cli commands causes parsing errors.
> some examples::::
> No need to create columns etc, it doesn't get through parsing the expression::
> cassandra-cli
> 1. 
> set column['KEY+vals'][VALUE] = 'VAL\'' ;
> Syntax error at position 41: mismatched character '<EOF>' expecting '''
> 2.
> set column['KEY+val\'s'][VALUE] = 'VAL' ;
> Syntax error at position 41: mismatched character '<EOF>' expecting '''
> 3.
> set column['KEY+vals\''][VALUE] = 'VAL\'' ;
> Syntax error at position 38: unexpected "\" for `set 
> column['KEY+vals\''][VALUE] = 'VAL\'' ;`.

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