Hi Raj,
When Siddhi Compiler Tokenize a String Literal (like "t\"est" ),
AFAIK it does not escape characters when seeing '\'. So it will read '\'
character as just another character.
So adding an escape character will not work.
Also the Siddhi Grammar does not allow a String Literal to contain a quote
character (' " ' or ' ' ')
If we put such a character, the query compilation will fail.
For example,
Following query compilation will fail because "pa\"rt1" contains ' " '
character. ('\' character will be read as a part of the String Literal)
//---------------------------------------------------------------------------------------------------------
from inputStream
select symbol1 , str:concat("pa\"rt1","part2") as concatString
insert into outputStream;
//---------------------------------------------------------------------------------------------------------
However,
concat function *can* process String Literals with quotes.
So, if you somehow send a String Literal (with quotes) to the Concat
function, then concat function has no issue with processing it.
For example, following query compilation will be successful,
//---------------------------------------------------------------------------------------------------------
define stream inputStream (symbol1 string, symbol2 string);
@info(name = 'query1')
from inputStream
select str:concat(symbol1,symbol2) as concatString
insert into outputStream;
//---------------------------------------------------------------------------------------------------------
and if you send an inputStream event:
symbol1=AAA
symbol2=B"B
You will get the result (concatString):
AAAB"B
Thanks,
Dilini
On Tue, Jun 14, 2016 at 2:54 PM, Rajkumar Rajaratnam <[email protected]>
wrote:
> Hi,
>
> $Subject please. Escaping character doesn't seems to be working.
>
> Thanks,
> Raj.
>
> --
> Rajkumar Rajaratnam
> Committer & PMC Member, Apache Stratos
> Senior Software Engineer, WSO2
>
> Mobile : +94777568639
>
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--
*Dilini Muthumala*
Senior Software Engineer,
WSO2 Inc.
*E-mail :* [email protected]
*Mobile: *+94 713-400-029
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