If I enable regular expressions ( Menu:Search > Enable Regex), with this query I can get a list of all (397) files/folders on my system that start with either "test" or "text" :
I think functions need 3 signs:
One before the function, to inform about writing a function (the results list won't be affected by writing the function name),
And two signs after the function name, to open and close.
/function()
/function<> viewtopic.php?f=4&t=6057#p20426