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Complex regular expressions can be created and tested in the Zabbix frontend.
After a regular expression has been created, it can be used in several places in the frontend by referring to its name, prefixed with @, for example, @mycustomregexp.
All regular expressions in Zabbix, whether created with the advanced editor, or entered manually, support POSIX extended regular expressions.
To create a regular expression:
Set the regular expression name. Any Unicode characters are allowed in the name.
To add a new subexpression, click on New in the Expressions block.
A custom regular expression may consist of multiple subexpressions, and it can be tested by providing a test string. Results show status of each subexpression and total custom expression status.