Files
happening/src/parsing.rs
T
2026-04-29 00:40:29 +01:00

115 lines
2.9 KiB
Rust

use std::collections::HashMap;
use std::time::Duration;
use std::thread;
mod strings;
use crate::
{
// Internal code
character,
api,
// Libraries
mpsc::Receiver,
Arc,
Mutex,
info,
warn,
debug,
};
// Parse the tokens in a file
// Returns success or an error string
pub async fn token_parse(
tokens: &Vec<&str>,
mut characters: &mut HashMap::<String, character::Character>,
data_to_send: Arc<Mutex<api::DataToSend>>,
rx: &Receiver<u8>,
) -> Result<(),String>
{
let mut index: usize = 0;
// Run an infinite loop
loop
{
// If the client hasn't responded then continue (after a short pause)
if rx.try_recv().is_err()
{
thread::sleep(Duration::from_millis(300));
continue
}
// Get the next token
let token = tokens
.get(index)
.ok_or_else(|| "File reached termination point".to_string())?;
// The instructions are related to characters
if token.starts_with('@')
{
let character_name: String = token.chars().skip(1).collect();
// If the character doesn't exist, then create it
if ! characters.contains_key(&character_name)
{
let new_character = character::Character::new(character_name.clone());
characters.insert(character_name.clone(),new_character);
}
println!("Doing something with a character: {}", character_name);
// The index is incremented to after the character's instructions
index += match character_parse(index+1, &tokens, character_name, &mut characters, &data_to_send, &rx).await
{
Ok(increment) => increment,
Err(error) => return Err(error),
}
}
// Miscelleneous instructions
if token.to_lowercase() == "end"
{
return Ok(()) // quit
}
index += 1;
}
}
// Parsing character related instructions
async fn character_parse
(
index: usize,
tokens: &Vec<&str>,
character_name: String,
characters: &mut HashMap::<String, character::Character>,
data_to_send: &Arc<Mutex<api::DataToSend>>,
rx: &Receiver<u8>,
) -> Result<usize,String>
{
let mut sum_index: usize = index;
loop
{
// Ensure the index is valid (the index is not beyond the vector)
let token = tokens
.get(sum_index)
.ok_or_else(|| "File reached termination point".to_string())?;
match token.to_lowercase().as_str()
{
// The character is saying something, so grab the text and pass it
// to the client
"says" =>
{
match strings::extract_quoted(&tokens[sum_index+1..]) // TODO increment to after the string
{
Some(output_string) =>
{
debug!("{}", output_string);
let mut data = data_to_send.lock().unwrap();
data.action_type = String::from("output");
data.content = output_string;
data.character = character_name.clone();
},
None => return Err(String::from("Unable to read string")),
}
},
// Catch all condition, if the instruction is unrecognised as a
// character command
_ => return Err(String::from(format!("Invalid command: {}", token))),
}
sum_index += 1;
}
}