dots/.config/awesome/quarrel/native/src/lenses/calculator.rs

37 lines
819 B
Rust

// use meval::eval_str;
use cpc::{
eval,
units::Unit,
};
use mlua::prelude::*;
use crate::lenses::entry::{
entries_to_lua_table,
Entry,
};
pub fn query<'a>(lua: &Lua, input: String) -> LuaResult<LuaTable> {
let result = match eval(input.trim(), true, Unit::Celsius, false) {
Ok(result) => {
format!(
"{}{}",
result.value,
match result.unit {
Unit::NoUnit => "".to_owned(),
_ => format!(" {:?}", result.unit),
}
)
}
Err(_) => return lua.create_table(),
};
Ok(entries_to_lua_table(
vec![Entry {
message: result,
exec: None,
provider: "Calculator".to_string(),
}],
lua,
))
}