studiocakethe literal text studiocake (case insensitive) \.the literal . (4610 / 568 / 2E16)
kievthe literal text kiev (case insensitive) \.the literal . (4610 / 568 / 2E16)
uathe literal text ua (case insensitive) \S*any character that is not Unicode whitespace, repeated any number of times
\ba Unicode word boundary
Non-Capturing Group(?:jpeg|png|jpg) jpegthe literal text jpeg (case insensitive) pngthe literal text png (case insensitive) jpgthe literal text jpg (case insensitive)