46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
use crate::{kak_response, open_command_fifo, KakMessage};
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use evalexpr::{eval, Value};
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use std::io::Write;
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#[derive(clap::StructOpt, Debug)]
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pub struct Options;
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pub fn math_eval(_options: &Options) -> Result<KakMessage, KakMessage> {
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let selections = kak_response("%val{selections}")?;
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let mut f = open_command_fifo()?;
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write!(f, "reg '\"'")?;
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let mut err = None;
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let mut err_count: usize = 0;
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for i in selections.iter().map(|s| {
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// TODO: Do all of these need to be strings?
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match eval(s) {
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Ok(Value::Float(f)) => Some(f.to_string()),
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Ok(Value::Int(f)) => Some(f.to_string()),
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// TODO: Should this be none?
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Ok(_) => None,
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Err(e) => {
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eprintln!("Error: {:?}", e);
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if err.is_none() {
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err = Some(e);
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err_count = err_count.saturating_add(1);
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}
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None
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}
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}
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}) {
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// TODO: String allocation?
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let new_selection = i.map(|s| s.replace('\'', "''"));
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// .unwrap_or_else(|| "".to_string());
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write!(f, " '{}'", new_selection.as_deref().unwrap_or(""))?;
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}
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write!(f, " ; exec R;")?;
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f.flush()?;
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Ok(KakMessage(
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format!("MathEval {} selections", selections.len()),
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None,
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))
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}
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