fromString
Convert a language tag to a PangoLanguage
.
The language tag must be in a RFC-3066 format. PangoLanguage
pointers can be efficiently copied (copy the pointer) and compared with other language tags (compare the pointer.)
This function first canonicalizes the string by converting it to lowercase, mapping '_' to '-', and stripping all characters other than letters and '-'.
Use func@Pango.Language.get_default if you want to get the PangoLanguage
for the current locale of the process.
Return
a PangoLanguage
Parameters
language
a string representing a language tag