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use std::str::FromStr;
use crate::Parameter;
/// see 8.3.4. [Value Data Types Registry](https://tools.ietf.org/html/rfc5545#section-8.3.4)
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum ValueType {
/// [`Binary`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.1)
Binary,
/// [`Boolean`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.2)
Boolean,
/// [`CalAddress`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.3)
CalAddress,
/// [`Date`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.4)
Date,
/// [`DateTime`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.5)
DateTime,
/// [`Duration`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.6)
Duration,
/// [`Float`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.7)
Float,
/// [`Integer`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.8)
Integer,
/// [`Period`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.9)
Period,
/// [`Recur`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.10)
Recur,
/// [`Text`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.11)
Text,
/// [`Time`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.12)
Time,
/// [`Uri`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.13)
Uri,
/// [`UtcOffset`](https://datatracker.ietf.org/doc/html/rfc5545#section-3.3.14)
UtcOffset,
}
impl ValueType {
pub(crate) fn by_name(name: &str) -> Option<Self> {
if name.chars().any(char::is_lowercase) {
// eprintln!("property_name must be uppercase");
return None;
}
use ValueType::*;
match name {
// 3.7.0 calendar properties
"CALSCALE" => Some(Text), // 3.7.1
"METHOD" => Some(Text), // 3.7.2
"PRODID" => Some(Text), // 3.7.3
"VERSION" => Some(Text), //3.7.4
// 3.8.0 component properties
"ATTACH" => Some(Uri), // or BINARY // 3.8.1.1
"CATEGORIES" => Some(Text), // 3.8.1.2
"CLASS" => Some(Text), // 3.8.1.3
"COMMENT" => Some(Text), // 3.8.1.4
"DESCRIPTION" => Some(Text), // 3.8.1.5
"GEO" => Some(Float), // 3.8.1.6
"LOCATION" => Some(Text), // 3.8.1.7
"PERCENT-COMPLETE" => Some(Integer), // 3.8.1.8
"PRIORITY" => Some(Integer), // 3.8.1.9
"RESOURCES" => Some(Text), // 3.8.1.10
"STATUS" => Some(Text), // 3.8.1.11
"SUMMARY" => Some(Text), // 3.8.8.1.12
"COMPLETED" => Some(DateTime), // 3.8.2.1
"DTEND" => Some(DateTime), // or DATE // 3.8.2.2
"DUE" => Some(DateTime), // or DATE // 3.8.2.3
"DTSTART" => Some(DateTime), // or DATE 3.8.2.4
"DURATION" => Some(Duration), // 3.8.2.5
"FREEBUSY" => Some(Period), // 3.8.2.6
"TRANSP" => Some(Text), // 3.8.2.7
"TZID" => Some(Text), // 3.8.3.1
"TZNAME" => Some(Text), // 3.8.3.2
"TZOFFSETFROM" => Some(UtcOffset), //
"TZOFFSETTO" => Some(UtcOffset), //
"TZURL" => Some(Uri), //
"ATTENDEE" => Some(CalAddress), // 3.8.4.1
"CONTACT" => Some(Text), // 3.8.4.2
"ORGANIZER" => Some(CalAddress), // 3.8.4.3
"RECURRENCE-ID" => Some(DateTime), // 3.8.4.4
"RELATED-TO" => Some(Text), //
"URL" => Some(Uri), //
"UID" => Some(Text), //
"EXDATE" => Some(DateTime), // or DATE-TIME //
"RDATE" => Some(DateTime), // or PERIOD // or DATE-TIME // or DATE //
"RRULE" => Some(Recur), //
"ACTION" => Some(Text), //
"REPEAT" => Some(Integer), //
"TRIGGER" => Some(Duration), // or DATE-TIME (must be UTC) // 3.8.6.3
"CREATED" => Some(DateTime), // 3.8.7.1
"DTSTAMP" => Some(DateTime), // 3.8.7.2
"LAST-MODIFIED" => Some(DateTime), // 3.8.7.3
"SEQUENCE" => Some(Integer), // 3.8.7.4
// 3.8.8.1
// "An IANA-registered property name" => Any parameter can be specified on this property.
// "X-"/* ... */ => Some(Text), // any type 3.8.8.2
"REQUEST-STATUS" => Some(Text), // 3.8.8.3
_ => None,
}
}
}
impl TryFrom<Parameter> for ValueType {
type Error = ();
fn try_from(par: Parameter) -> Result<Self, Self::Error> {
if par.key() != "VALUE" {
Err(())
} else {
FromStr::from_str(par.value())
}
}
}
impl FromStr for ValueType {
type Err = ();
fn from_str(val: &str) -> Result<Self, Self::Err> {
match val {
"BINARY" => Ok(Self::Binary),
"BOOLEAN" => Ok(Self::Boolean),
"CAL-ADDRESS" => Ok(Self::CalAddress),
"DATE" => Ok(Self::Date),
"DATE-TIME" => Ok(Self::DateTime),
"DURATION" => Ok(Self::Duration),
"FLOAT" => Ok(Self::Float),
"INTEGER" => Ok(Self::Integer),
"PERIOD" => Ok(Self::Period),
"RECUR" => Ok(Self::Recur),
"TEXT" => Ok(Self::Text),
"TIME" => Ok(Self::Time),
"URI" => Ok(Self::Uri),
"UTC-OFFSET" => Ok(Self::UtcOffset),
_ => Err(()),
}
}
}