[syslog-ng] Special characters in syslogng filters

[Jay]

Hello
 
If the filter specified in syslog-ng.conf contains the ( character or ) character, then is it correct to prefix them with \\.
 
For example, if I need to filter a syslog containing the string (abcd)
 
then in syslog-ng.conf, I would need to specify the filter as \\(abcd\\)
 
Could someone confirm, if this is the correct way of specifying the filter, please ?
 
If not, please let me know the correct way of specifying the filter.
 
Thanks in advance for your help.
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