d9bb7a1693
Hiding character fetching behind this interface allows us to create more specific implementations when is appropriate. For instance, an instance of `Input` can be created for a `&str`, allowing for borrowing and more efficient peeking and traversing than if we were to fetch characters one at a time and placing them into a temporary buffer.
35 lines
906 B
Rust
35 lines
906 B
Rust
use std::env;
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use std::fs::File;
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use std::io::prelude::*;
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use saphyr_parser::{Event, MarkedEventReceiver, Marker, Parser};
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#[derive(Debug)]
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struct EventSink {
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events: Vec<(Event, Marker)>,
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}
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impl MarkedEventReceiver for EventSink {
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fn on_event(&mut self, ev: Event, mark: Marker) {
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eprintln!(" \x1B[;34m\u{21B3} {:?}\x1B[;m", &ev);
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self.events.push((ev, mark));
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}
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}
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fn str_to_events(yaml: &str) -> Vec<(Event, Marker)> {
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let mut sink = EventSink { events: Vec::new() };
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let mut parser = Parser::new_from_str(yaml);
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// Load events using our sink as the receiver.
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parser.load(&mut sink, true).unwrap();
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sink.events
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}
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fn main() {
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let args: Vec<_> = env::args().collect();
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let mut f = File::open(&args[1]).unwrap();
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let mut s = String::new();
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f.read_to_string(&mut s).unwrap();
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// dbg!(str_to_events(&s));
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str_to_events(&s);
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}
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