botserver/src/basic/keywords/first.rs

use rhai::Dynamic;
use rhai::Engine;
pub fn first_keyword(engine: &mut Engine) {
 engine
 .register_custom_syntax(&["FIRST", "$expr$"], false, {
 move |context, inputs| {
 let input_string = context.eval_expression_tree(&inputs[0])?;
 let input_str = input_string.to_string();
 let first_word = input_str.split_whitespace().next().unwrap_or("").to_string();
 Ok(Dynamic::from(first_word))
 }
 })
 .unwrap();
}