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From "Aaron Morton (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2492) add an escapeSQLString function and fix unescapeSQLString
Date Tue, 19 Apr 2011 08:25:05 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron Morton updated CASSANDRA-2492:
------------------------------------

    Attachment: 0001-use-StringEscapeUtils-to-escape-and-unescape.patch

Attached patch to use StringEscapeUtils to escape and unescape cli strings, includes unit
test.

> add an escapeSQLString function and fix unescapeSQLString
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-2492
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2492
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.4
>            Reporter: Aaron Morton
>            Assignee: Aaron Morton
>            Priority: Trivial
>         Attachments: 0001-use-StringEscapeUtils-to-escape-and-unescape.patch
>
>
> CliUtils.unescapeSqlString repeats the escape character e.g. 
> {noformat}"my \\t tab" becomes "my \tt"{noformat}
> because {{i}} is not bumped when an escape is processed.
>  
> Also for Cassandra-2221 I need a function to escape strings back so they will work if
processed by the cli again. 
> There are a number of non [standard escapes|http://java.sun.com/docs/books/jls/second_edition/html/lexical.doc.html#101089]
which I assume is a hang over from is original source https://github.com/apache/cassandra/blob/1aeca2b6257b0ad6680080b1756edf7ee9acf8c8/src/java/org/apache/cassandra/cli/CliUtils.java
> Will change to use the [StringEscapeUtils|http://commons.apache.org/lang/api-2.5/org/apache/commons/lang/StringEscapeUtils.html]
class  

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