/// <summary>
/// Create an OData filter expression from an interpolated string. The
/// interpolated values will be quoted and escaped as necessary.
/// </summary>
/// <param name="filter">An interpolated filter string.</param>
/// <param name="formatProvider">
/// Format provider used to convert values to strings.
/// <see cref="CultureInfo.InvariantCulture"/> is used as a default.
/// </param>
/// <returns>A valid OData filter expression.</returns>
public static string Create(FormattableString filter, IFormatProvider formatProvider)
{
if (filter == null)
{
return(null);
}
formatProvider ??= CultureInfo.InvariantCulture;
string[] args = new string[filter.ArgumentCount];
for (int i = 0; i < filter.ArgumentCount; i++)
{
args[i] = filter.GetArgument(i) switch
{
// Null
null => "null",
// Boolean
bool x => x.ToString(formatProvider).ToLowerInvariant(),
// Numeric
sbyte x => x.ToString(formatProvider),
byte x => x.ToString(formatProvider),
short x => x.ToString(formatProvider),
ushort x => x.ToString(formatProvider),
int x => x.ToString(formatProvider),
uint x => x.ToString(formatProvider),
long x => x.ToString(formatProvider),
ulong x => x.ToString(formatProvider),
decimal x => x.ToString(formatProvider),
// Floating point
float x => JsonSerialization.Float(x, formatProvider),
double x => JsonSerialization.Double(x, formatProvider),
// Dates as 8601 with a time zone
DateTimeOffset x => JsonSerialization.Date(x, formatProvider),
DateTime x => JsonSerialization.Date(x, formatProvider),
#if EXPERIMENTAL_SPATIAL
// Points
GeometryPosition x => EncodeGeometry(x),
PointGeometry x => EncodeGeometry(x),
// Polygons
LineGeometry x => EncodeGeometry(x),
PolygonGeometry x => EncodeGeometry(x),
#endif
// Text
string x => Quote(x),
char x => Quote(x.ToString(formatProvider)),
StringBuilder x => Quote(x.ToString()),
// Everything else
object x => throw new ArgumentException(
$"Unable to convert argument {i} from type {x.GetType()} to an OData literal.")
};
}
string text = string.Format(formatProvider, filter.Format, args);
return(text);
}
