129 lines
3.4 KiB
Rust
129 lines
3.4 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use regex::Regex;
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use std::convert::Into;
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use std::convert::From;
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use std::option::Option;
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub struct KeyValue<K, V> {
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k: K,
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v: V,
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}
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impl<K, V> KeyValue<K, V> {
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pub fn new(k: K, v: V) -> KeyValue<K, V> {
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KeyValue { k, v }
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}
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pub fn key(&self) -> &K {
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&self.k
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}
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pub fn value(&self) -> &V {
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&self.v
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}
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}
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impl<K, V> Into<(K, V)> for KeyValue<K, V> {
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fn into(self) -> (K, V) {
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(self.k, self.v)
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}
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}
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pub trait IntoKeyValue<K, V> {
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fn into_kv(self) -> Option<KeyValue<K, V>>;
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}
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impl IntoKeyValue<String, String> for String {
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fn into_kv(self) -> Option<KeyValue<String, String>> {
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let key = {
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lazy_static! {
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static ref R: Regex = Regex::new("^(?P<KEY>([^=]*))=(.*)$").unwrap();
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}
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R.captures(&self[..])
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.and_then(|caps| caps.name("KEY"))
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};
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let value = {
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lazy_static! {
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static ref R: Regex = Regex::new("(.*)=(\"(?P<QVALUE>([^\"]*))\"|(?P<VALUE>(.*)))$")
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.unwrap();
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}
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R.captures(&self[..])
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.map(|c| {
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c.name("VALUE")
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.or_else(|| c.name("QVALUE"))
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.map(|m| m.as_str())
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.unwrap_or("")
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})
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};
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key.and_then(|k| {
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value.and_then(|v| Some(KeyValue::new(String::from(k.as_str()), String::from(v))))
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})
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}
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}
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#[cfg(test)]
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mod test {
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use super::{KeyValue, IntoKeyValue};
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#[test]
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fn test_single_quoted() {
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let s = String::from("foo='bar'").into_kv().unwrap();
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assert_eq!(KeyValue::new(String::from("foo"), String::from("\'bar\'")), s);
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}
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#[test]
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fn test_double_quoted() {
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let s = String::from("foo=\"bar\"").into_kv().unwrap();
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assert_eq!(KeyValue::new(String::from("foo"), String::from("bar")), s);
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}
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#[test]
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fn test_double_and_single_quoted() {
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let s = String::from("foo=\"bar\'").into_kv().unwrap();
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assert_eq!(KeyValue::new(String::from("foo"), String::from("\"bar\'")), s);
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}
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#[test]
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fn test_single_and_double_quoted() {
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let s = String::from("foo=\'bar\"").into_kv().unwrap();
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assert_eq!(KeyValue::new(String::from("foo"), String::from("\'bar\"")), s);
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}
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#[test]
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fn test_not_quoted() {
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let s = String::from("foo=bar").into_kv().unwrap();
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assert_eq!(KeyValue::new(String::from("foo"), String::from("bar")), s);
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}
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}
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