a semicolon separated list of languages that this engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine indicates that it is specific for the language for a given code point. An entry in this list of "*" indicates that this engine is specific to all languages for this range.
a #PangoScript. The value %PANGO_SCRIPT_COMMON has the special meaning here of "all scripts"
The #PangoEngineScriptInfo structure contains information about how the shaper covers a particular script.