ciq-canRenderWithNumberFont

// insert hardcoded device logic from jungle here
// (e.g. many non-Edge devices support spaces in number fonts)
var numberFontSupportsSpaces = ...; // true or false

function canRenderWithNumberFont(str) {
    var c_array = str.toCharArray();
    var c_size = c_array.size();
    for (var i = 0; i < c_size; i++)
    {
        var c = c_array[i];
        if (!(
            (c == ' ' && numberFontSupportsSpaces) ||
            (c >= '0' && c <= '9') ||
            c == '#' || c == '%' ||
            c == '+' || c == '-' ||
            c == '.' || c == '/' ||
            c == ':' || c == '°'))
        {
            return false;
        }
    }
    return true;
}