Hi,
I have a TTree with some char * member.
I want to filter on the value of this char*
according documentation page 263 case 25 and 26
I can use == and strstr and I have to escape the " as \"
This work well most of the case.
But I have sometimes character '+' '-' and ' ' inside the variable.
The parser does not seem to like that.
( * Version 3.05/05 21 May 2003 *
on solaris)
Example
root [7] t->Scan("name","strstr(name,\"4U2358\")")
************************
* Row * name *
************************
* 0 * 4U2358+21 *
************************
==> 1 selected entry
(Int_t)1
root [8] t->Scan("name","strstr(name,\"4U2358+\")")
*ERROR 26 :
Unknown name : ""4U2358"
(Int_t)(-1)
root [9] t->Scan("name","strstr(name,\"4U2358\+\")")
*ERROR 26 :
Unknown name : ""4U2358"
(Int_t)(-1)
root [10] t->Scan("name","strstr(name,\"XMMU\")")
************************
* Row * name *
************************
* 25 * XMMU J004 *
* 26 * XMMU J004 *
* 28 * XMMU J004 *
* 29 * XMMU J004 *
* 30 * XMMU J004 *
************************
==> 5 selected entries
(Int_t)5
root [11] t->Scan("name","strstr(name,\"XMMU J\")")
************************
* Row * name *
************************
************************
==> 0 selected entries
(Int_t)0
Any way to achieve that?
--
Nicolas Produit
INTEGRAL Science Data Center Phone: +41 22 950 91 40
16, Chemin d'Ecogia Fax: +41 22 950 91 33
CH-1290 Versoix www: http://isdc.unige.ch/
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