Aliases

src/main.rs

@@ -2,7 +2,7 @@ mod server;
 
 use crate::server::{Command, NoteContext};
 use std::io;
-use std::io::Read;
+use std::io::{Read, Write};
 use std::net::UdpSocket;
 use std::sync::mpsc::*;
 
@@ -23,6 +23,7 @@ fn main() {
         let listener = UdpSocket::bind(LISTEN).unwrap();
         let mut buffer = [0; 1024];
         while let Ok((inbound, _outbound)) = listener.recv_from(&mut buffer) {
+            println!("input command");
             let command= Command::from(&buffer[..inbound]);
             network_cw.send(command).unwrap();
         }
@@ -34,7 +35,8 @@ fn main() {
 fn handle_console_input(command_channel: Sender<Command>) {
     let mut key = String::new();
     loop {
-        io::stdin().read_to_string(&mut key).unwrap();
+        key.clear();
+        io::stdin().read_line(&mut key).unwrap();
         if key == "exit" {
             break;
         }
@@ -42,6 +44,6 @@ fn handle_console_input(command_channel: Sender<Command>) {
             continue;
         }
 
-        command_channel.send(Command::Display(key.clone())).unwrap();
+        command_channel.send(Command::Display(key.trim_end().to_string())).unwrap();
     }
 }

src/server/handling.rs

@@ -1,9 +1,8 @@
 use crate::server::StoredData::*;
 use crate::server::{Command, NoteContext, StoredData};
 use litemap::LiteMap;
-use std::io::Write;
+use std::io::{stderr, Write, stdout};
 use std::string::String;
-use log::info;
 
 impl NoteContext {
     pub fn execute_command(&mut self, command: Command) {
@@ -16,22 +15,41 @@ impl NoteContext {
             Command::Push(key, value) => self.push(key, value),
             Command::Display(key) => self.display(key),
             Command::SetOutput(generator) => self.output = generator(),
+            Command::Alias(id, alias) => self.set_alias(id, alias),
         }
     }
 
-    fn set(&mut self, key: String, value: StoredData) {
+    fn set(&mut self,mut key: String, value: StoredData) {
         if key.is_empty() {
             return;
         }
+        if let Some(alias) = self.aliases.get(&key) {
+            key = alias.to_string();
+        }
         self.entries.insert(key, value);
     }
 
+    fn get_entry(&mut self, mut key: String) -> Option<&StoredData> {
+        if let Some(alias) = self.aliases.get(&key) {
+            key = alias.to_string();
+        }
+        self.entries.get(&key)
+    }
+
+    fn get_entry_mut(&mut self, mut key: String) -> Option<&mut StoredData> {
+        if let Some(alias) = self.aliases.get(&key) {
+            key = alias.to_string();
+        }
+        self.entries.get_mut(&key)
+    }
+
     fn push(&mut self, key: String, value: StoredData) {
         let mut vectorize: Option<StoredData> = None;
-        let current = self.entries.get_mut(&key);
+        let current = self.get_entry_mut(key.clone());
         if let Some(current) = current {
             if let Vec(vec) = current {
                 vec.push(value);
+                return;
             } else {
                 vectorize = Some(Vec(vec![current.clone()]));
             }
@@ -50,9 +68,27 @@ impl NoteContext {
     }
 
     fn display(&mut self, key: String) {
+        if key.starts_with("#"){
+            let command = key.trim_start_matches("#").to_string();
+            match command.as_str() {
+                "list" => {
+                    self.entries.iter().for_each(|(k, v)| {
+                        writeln!(&mut self.output, "{}", k).unwrap();
+                    })
+                }
+                &_ => {} }
+
+            return;
+        }
         if let Some(data) = self.entries.get(&key) {
-            writeln!(self.output, "{}", key).unwrap();
+            writeln!(self.output, "{} value", key).expect("write failed");
-            _ = self.output.write_all(data.to_string().as_bytes());
+            writeln!(&mut self.output, "{}", data).expect("write failed");
+        } else {
+            writeln!(&mut self.output, "Key not found").expect("TODO: panic message");
         }
     }
+
+    fn set_alias(&mut self, id: String, alias: String) {
+        self.aliases.insert(id, alias);
+    }
 }

src/server/mod.rs

@@ -2,9 +2,9 @@ mod handling;
 mod testing;
 
 use litemap::LiteMap;
+use minicbor::Decoder;
 use minicbor::data::Type;
 use minicbor::decode::Error;
-use minicbor::Decoder;
 use std::collections::HashMap;
 use std::fmt::{Display, Formatter};
 use std::io::Write;
@@ -14,6 +14,7 @@ pub enum Command {
     Set(String, StoredData),
     Define(String, LiteMap<String, StoredData>),
     Push(String, StoredData),
+    Alias(String, String),
     Display(String),
     SetOutput(fn() -> Box<dyn Write>),
 }
@@ -37,8 +38,11 @@ impl Display for StoredData {
             StoredData::Bool(v) => v.fmt(f),
             StoredData::Line(v) => v.fmt(f),
             StoredData::Vec(vec) => {
-                vec.iter().for_each(|d| {
+                vec.iter().enumerate().for_each(|(i, d)| {
-                    _ = write!(f, "{}\n", d);
+                    write!(f, "{}", d).unwrap();
+                    if i != vec.len() - 1 {
+                        write!(f, "\n").unwrap();
+                    }
                 });
                 Ok(())
             }
@@ -90,10 +94,9 @@ fn parse_command(data: &[u8]) -> Result<Command, Error> {
         return Ok(Command::Set(id, value));
     }
     if data.starts_with(b"PUSH:") {
-        println!("{}", String::from_utf8_lossy(data));
         let payload = &data[b"PUSH:".len()..];
         let mut decoder = Decoder::new(&payload);
-        decoder.array()?;
+        _ = decoder.array()?;
         let id = decoder.str()?.to_string();
         let value = decode_value(&mut decoder)?;
         return Ok(Command::Push(id, value));
@@ -105,6 +108,14 @@ fn parse_command(data: &[u8]) -> Result<Command, Error> {
         let id = decoder.str()?.to_string();
         return Ok(Command::Display(id));
     }
+    if data.starts_with(b"ALIAS:") {
+        let payload = &data[b"ALIAS:".len()..];
+        let mut decoder = Decoder::new(&payload);
+        decoder.array()?;
+        let id = decoder.str()?.to_string();
+        let alias = decoder.str()?.to_string();
+        return Ok(Command::Alias(id, alias));
+    }
     Ok(Command::Unknown)
 }
 
@@ -131,7 +142,7 @@ fn decode_value(decoder: &mut Decoder) -> Result<StoredData, Error> {
             } else {
                 vec![]
             };
-            if array.is_empty() {
+            if array.capacity() == 0 {
                 loop {
                     let dt = decoder.datatype()?;
                     if let Type::Break = dt {
@@ -139,6 +150,10 @@ fn decode_value(decoder: &mut Decoder) -> Result<StoredData, Error> {
                     }
                     array.push(decode_value(decoder)?);
                 }
+            } else {
+                for _ in 0..array.capacity() {
+                    array.push(decode_value(decoder)?);
+                }
             }
             StoredData::Line(Line::from(array))
         }
@@ -151,6 +166,7 @@ fn decode_value(decoder: &mut Decoder) -> Result<StoredData, Error> {
 
 pub struct NoteContext {
     entries: HashMap<String, StoredData>,
+    aliases: HashMap<String, String>,
     output: Box<dyn Write>,
 }
 
@@ -158,6 +174,7 @@ impl NoteContext {
     pub fn default() -> Self {
         Self {
             entries: Default::default(),
+            aliases: Default::default(),
             output: Box::new(std::io::stdout()),
         }
     }