21 lines
682 B
Rust
21 lines
682 B
Rust
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use rhai::Dynamic;
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use rhai::Engine;
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pub fn first_keyword(engine: &mut Engine) {
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engine
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.register_custom_syntax(&["FIRST", "$expr$"], false, {
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move |context, inputs| {
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let input_string = context.eval_expression_tree(&inputs[0])?;
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let input_str = input_string.to_string();
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// Extract first word by splitting on whitespace
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let first_word = input_str.split_whitespace()
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.next()
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.unwrap_or("")
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.to_string();
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Ok(Dynamic::from(first_word))
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}
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})
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.unwrap();
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}
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