You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Util/Locale/
Class App Inherits ConsoleApplication
EventHandler Function Run(args() as String) As Integer
// test normal mode
test "%f", 1.234 // default locale
test "%f", 1.234, "de_DE" // German
test "%f", 1.234, "en_US" // US English
test "%f", 1.234, "fr_FR" // French
test "%f", 1.0 // default locale
test "%f", 1.0, "de_DE" // German
test "%f", 1.0, "en_US" // US English
test "%f", 1.0, "fr_FR" // French
// one before comma, 2 after comma
test "%1.2f", 1.234 // default locale
test "%1.2f", 1.234, "de_DE" // German
test "%1.2f", 1.234, "en_US" // US English
test "%1.2f", 1.234, "fr_FR" // French
// test exceptions
test "%f%f", 1.23, "fr_FR" // French
test "%f", 1.23, "xxx" // French
End EventHandler
Sub Test(format as string, value as Double, locale as string = "")
#pragma BreakOnExceptions false
try
print format+": "+formatMBS(format, value, locale)
catch u as UnsupportedFormatException
print format+": "+u.message
end try
End Sub
End Class