requiresExplicitLeadingPeriods

If a period in the name is at the beginning of a component, don’t match using wildcards.

Pattern+Options.swift:43
var requiresExplicitLeadingPeriods: Bool

Treat the . character specially if it appears at the beginning of string. If this flag is set, wildcard constructs in pattern cannot match . as the first character of string. If you set both this and pathSeparator, then the special treatment applies to . following pathSeparator as well as to . at the beginning of string.

Equivalent to FNM_PERIOD.