pub fn substitute<'i>(
    input: &'i str,
    first_token_type: TokenSerializationType,
    computed_values_map: Option<&Arc<CustomPropertiesMap>>,
    device: &Device
) -> Result<String, ParseError<'i>>
Expand description

Replace var() and env() functions for a non-custom property.

Return Err(()) for invalid at computed time.