nushell/src/commands/split.rs
2019-05-26 00:17:35 -07:00

46 lines
1.7 KiB
Rust

use crate::errors::ShellError;
use crate::object::{Primitive, Value};
use crate::prelude::*;
use log::debug;
// TODO: "Amount remaining" wrapper
pub fn split(args: CommandArgs) -> Result<OutputStream, ShellError> {
//let splitter = args.args[0].as_string()?;
let input = args.input;
let args = args.args;
Ok(input
.map(move |v| match v {
Value::Primitive(Primitive::String(s)) => {
let splitter = args[0].as_string().unwrap();
debug!("splitting with {:?}", splitter);
let split_result: Vec<_> = s.split(&splitter).filter(|s| s.trim() != "").collect();
debug!("split result = {:?}", split_result);
if split_result.len() == (args.len() - 1) {
let mut dict = crate::object::Dictionary::default();
for (k, v) in split_result.iter().zip(args.iter().skip(1)) {
dict.add(
v.as_string().unwrap(),
Value::Primitive(Primitive::String(k.to_string())),
);
}
ReturnValue::Value(Value::Object(dict))
} else {
let mut dict = crate::object::Dictionary::default();
for k in args.iter().skip(1) {
dict.add(
k.as_string().unwrap().trim(),
Value::Primitive(Primitive::String("".to_string())),
);
}
ReturnValue::Value(Value::Object(dict))
}
}
_ => ReturnValue::Value(Value::Object(crate::object::Dictionary::default())),
})
.boxed())
}