OptInt PmWiki : Pm Wiki / Markup Expressions . ... The {(...)} "expression markup" allows for a variety of string and formatting operations to be performed from within markup. Operations defined by this recipe include substr , ftime , strlen , rand , toupper / tolower , ucfirst , ucwords , pagename and asspaced . ... Note that the initial position argument is zero-based (i.e., the first character is referenced via a "0"). the number of characters to extract . ... ftime "fmt" "when")} . ...