Crate oxsdatatypes

Expand description

§oxsdatatypes

oxsdatatypes is an implementation of some XML Schema Definition Language Datatypes. Its main aim is to ease the implementation of SPARQL and XPath.

Usage example:

use std::str::FromStr;
use oxsdatatypes::Decimal;

assert!(Decimal::from_str("22.2").unwrap() > Decimal::from_str("21").unwrap());

Each datatype is represented by a Rust struct.

Each datatype provides:

FromStr implementation to parse a datatype string serialization following its lexical mapping.
Display implementation to serialize a datatype following its canonical mapping.
is_identical_with method following its identity relation.
PartialEq, and Eq if possible, implementations following its equality relation.
PartialOrd, and Ord if possible, implementations following its order relation.
From and TryFrom implementations to implement XPath casting.
Various methods implementing XPath functions.
from_be_bytes and to_be_bytes methods for serialization.

§`DateTime::now` behavior

The DateTime::now() function needs special OS support. Currently:

If the custom-now feature is enabled, a function computing now must be set:

use oxsdatatypes::Duration;

#[no_mangle]
fn custom_ox_now() -> Duration {
  unimplemented!("now implementation")
}

For wasm32-unknown-unknown if the js feature is enabled the Date.now() ECMAScript API is used.
For zkvm there is no access to IO functions so the function returns start of unix time (Jan 1, 1970)
For all other targets SystemTime::now() is used.

§License

This project is licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)

at your option.

§Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Oxigraph by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Structs§

Boolean: XML Schema boolean datatype
Date: XML Schema date datatype
DateTime: XML Schema dateTime datatype
DateTimeOverflowError: An overflow during DateTime-related operations.
DayTimeDuration: XML Schema dayTimeDuration datatype
Decimal: XML Schema decimal datatype
Double: XML Schema double datatype
Duration: XML Schema duration datatype
DurationOverflowError: An overflow during Duration-related operations.
Float: XML Schema float datatype
GDay: XML Schema date datatype
GMonth: XML Schema gMonth datatype
GMonthDay: XML Schema gMonthDay datatype
GYear: XML Schema gYear datatype
GYearMonth: XML Schema gYearMonth datatype
Integer: XML Schema integer datatype
InvalidTimezoneError: The value provided as timezone is not valid.
OppositeSignInDurationComponentsError: The year-month and the day-time components of a Duration have an opposite sign.
ParseDateTimeError: A parsing error
ParseDecimalError: An error when parsing a Decimal.
ParseDurationError: A parsing error
Time: XML Schema time datatype
TimezoneOffset: A timezone offset with respect to UTC.
TooLargeForDecimalError: The input is too large to fit into a Decimal.
TooLargeForIntegerError: The input is too large to fit into an Integer.
YearMonthDuration: XML Schema yearMonthDuration datatype