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use std::fmt;
use std::mem;
use std::collections::HashMap;
use std::convert::Into;
#[derive(Debug)]
/// key-value pairs inside of `Property`s
pub struct Parameter {
key: String,
value: String,
}
impl Parameter {
/// Creates a new `Parameter`
pub fn new(key: &str, val: &str) -> Self {
Parameter {
key: key.to_owned(),
value: val.to_owned(),
}
}
}
//type EntryParameters = Vec<Parameter>;
type EntryParameters = HashMap<String,Parameter>;
#[derive(Debug)]
/// key-value pairs inside of `Component`s
pub struct Property {
key: String,
value: String,
parameters: EntryParameters,
}
impl Property {
/// Guess what this does :D
pub fn new(key: &str, val: &str) -> Self {
Property {
key: key.to_owned(),
value: val.replace('\n', "\\n"),
parameters: HashMap::new(),
}
}
/// Clones the key field.
pub fn key(&self) -> String {
self.key.clone()
}
/// Appends a new parameter.
pub fn append_parameter<I:Into<Parameter>>(&mut self, into_parameter: I) -> &mut Self {
let parameter = into_parameter.into();
self.parameters.insert(parameter.key.to_owned(), parameter);
self
}
/// Creates and appends a parameter.
pub fn add_parameter(&mut self, key: &str, val: &str) -> &mut Self {
self.append_parameter(Parameter::new(key, val));
self
}
/// End of Builder Pattern.
pub fn done(&mut self) -> Self {
Property {
key: mem::replace(&mut self.key, String::new()),
value: mem::replace(&mut self.value, String::new()),
parameters: mem::replace(&mut self.parameters, HashMap::new()),
}
}
/// Writes this Property to `out`
pub fn fmt_write<W: fmt::Write>(&self, out: &mut W) -> Result<(), fmt::Error> {
try!(write!(out, "{}", self.key));
for (_key, &Parameter { ref key, ref value }) in &self.parameters {
try!(write!(out, ";{}={}", key, value));
}
try!(writeln!(out, ":{}", self.value));
Ok(())
}
}
/// Defines: `Public`, `Private`, `Confidential`
#[derive(Copy,Clone)]
pub enum Class {
/// Public
Public,
/// Private
Private,
/// Confidential
Confidential
}
impl Into<Property> for Class {
fn into(self) -> Property {
Property {
key: String::from("CLASS"),
value: String::from(match self {
Class::Public => "PUBLIC",
Class::Private => "PRIVATE",
Class::Confidential => "CONFIDENTIAL",
}),
parameters: HashMap::new()
}
}
}
/// see 8.3.4. [Value Data Types Registry](https://tools.ietf.org/html/rfc5545#section-8.3.4)
#[derive(Copy,Clone)]
pub enum ValueType{
/// Binary
Binary,
/// Boolean
Boolean,
/// CalAddress
CalAddress,
/// Date
Date,
/// DateTime
DateTime,
/// Duration
Duration,
/// Float
Float,
/// Integer
Integer,
/// Period
Period,
/// Recur
Recur,
/// Text
Text,
/// Time
Time,
/// Uri
Uri,
/// UtcOffset
UtcOffset,
}
impl Into<Parameter> for ValueType {
fn into(self) -> Parameter {
Parameter {
key: String::from("VALUE"),
value: String::from(match self {
ValueType::Binary => "BINARY",
ValueType::Boolean => "BOOLEAN",
ValueType::CalAddress => "CAL-ADDRESS",
ValueType::Date => "DATE",
ValueType::DateTime => "DATE-TIME",
ValueType::Duration => "DURATION",
ValueType::Float => "FLOAT",
ValueType::Integer => "INTEGER",
ValueType::Period => "PERIOD",
ValueType::Recur => "RECUR",
ValueType::Text => "TEXT",
ValueType::Time => "TIME",
ValueType::Uri => "URI",
ValueType::UtcOffset => "UTC-OFFSET"
})
}
}
}
|
