Function parse_scalar 

pub fn parse_scalar(raw: &str) -> LinoValue

Parse a filter value with the Links Notation scalar rules.

?done=true filters on the boolean, ?id=7 on the integer, and anything else stays a string.

Examples

use lino_objects_codec::LinoValue;
use lino_rest_api::query::parse_scalar;

assert_eq!(parse_scalar("true"), LinoValue::Bool(true));
assert_eq!(parse_scalar("7"), LinoValue::Int(7));
assert_eq!(parse_scalar("seven"), LinoValue::String("seven".into()));