48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
#![deny(warnings)]
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use std::env;
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use std::fs::File;
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use std::io;
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use std::io::prelude::*;
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use serde_json::Value as Json;
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use toml::Value as Toml;
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fn main() {
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let mut args = env::args();
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let mut input = String::new();
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if args.len() > 1 {
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let name = args.nth(1).unwrap();
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File::open(&name)
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.and_then(|mut f| f.read_to_string(&mut input))
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.unwrap();
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} else {
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io::stdin().read_to_string(&mut input).unwrap();
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}
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match input.parse() {
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Ok(toml) => {
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let json = convert(toml);
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println!("{}", serde_json::to_string_pretty(&json).unwrap());
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}
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Err(error) => println!("failed to parse TOML: {}", error),
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}
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}
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fn convert(toml: Toml) -> Json {
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match toml {
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Toml::String(s) => Json::String(s),
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Toml::Integer(i) => Json::Number(i.into()),
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Toml::Float(f) => {
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let n = serde_json::Number::from_f64(f).expect("float infinite and nan not allowed");
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Json::Number(n)
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}
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Toml::Boolean(b) => Json::Bool(b),
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Toml::Array(arr) => Json::Array(arr.into_iter().map(convert).collect()),
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Toml::Table(table) => {
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Json::Object(table.into_iter().map(|(k, v)| (k, convert(v))).collect())
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}
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Toml::Datetime(dt) => Json::String(dt.to_string()),
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}
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}
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