c.copy()
	}
	return true
}

// finalSigmaSpan would be the same as isLower.

// elUpper implements Greek upper casing, which entails removing a predefined
// set of non-blocked modifiers. Note that these accents should not be removed
// for title casing!
// Example: "Οδός" -> "ΟΔΟΣ".
func elUpper(c *context) bool {
	// From CLDR:

	"cl":                                   "\U0001f191",
	"clamp":                                "\U0001f5dc\ufe0f",
	"clap":                                 "\U0001f44f",
	"clapper":                              "\U0001f3ac",
	"classical_building":                   "\U0001f3db\ufe0f",
	"climbing":                             "\U0001f9d7",