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// -*- coding: utf-8 -*-
//
// Copyright (C) 2024 Michael Büsch <m@bues.ch>
//
// Licensed under the Apache License version 2.0
// or the MIT license, at your option.
// SPDX-License-Identifier: Apache-2.0 OR MIT
use anyhow::{self as ah, format_err as err};
use std::str::FromStr;
pub enum MapItem {
KeyValue(String, String),
KeyValues(String, Vec<String>),
Values(Vec<String>),
}
pub struct Map {
items: Vec<MapItem>,
}
impl FromStr for Map {
type Err = ah::Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut items = Vec::with_capacity(8);
for item in s.split('/') {
let item = if let Some(idx) = item.find(':') {
let chlen = ':'.len_utf8();
if idx < chlen {
return Err(err!("Invalid item key."));
}
let key = item[..=(idx - chlen)].trim();
if key.is_empty() {
return Err(err!("Invalid item key."));
}
let value = &item[idx + chlen..];
if value.find(',').is_some() {
MapItem::KeyValues(
key.to_string(),
value.split(',').map(|v| v.trim().to_string()).collect(),
)
} else {
MapItem::KeyValue(key.to_string(), value.trim().to_string())
}
} else {
let values = item.split(',');
let values: Vec<String> = values.map(|s| s.trim().to_string()).collect();
MapItem::Values(values)
};
items.push(item);
}
Ok(Map { items })
}
}
impl Map {
pub fn items(&self) -> &[MapItem] {
&self.items
}
}
// vim: ts=4 sw=4 expandtab
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