formatNumber

def formatNumber = { attrs ->
		if (!attrs.containsKey('number'))
			throwTagError("Tag [formatNumber] is missing required attribute [number]")
    	def number = attrs.get('number')
    	if (number == null) return
        else if(!(number instanceof Number)) {
            number = number.toString().toInteger()
        }
        def formatName = attrs.get('formatName')
        def format = attrs.get('format')
        if(!format && formatName) {
            format = message(code:formatName)
            if(!format) throwTagError("Attribute [formatName] of Tag [formatNumber] specifies a format key [$formatName] that does not exist within a message bundle!")
        }
        else if (!format) {
            format = message(code: "number.format", default: message(code: "default.number.format", default: "0"))
        }
        final def locale = RCU.getLocale(request)
        def dcfs = locale ?
        new DecimalFormatSymbols( locale ) :
        new DecimalFormatSymbols()
        def decimalFormat = new java.text.DecimalFormat( format, dcfs )
        out << decimalFormat.format((Double)number)
    }