105 lines
4.1 KiB
Markdown
105 lines
4.1 KiB
Markdown
# NOTICE
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this repository is a rebase of the `master` branch onto the `serde` branch of the saphyr rust crate.
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nothing novel has been added to this repository. all updates and actual value can be found at its [actual home](https://github.com/saphyr-rs/saphyr).
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this repository will remain available until the serde functionality is merged into master upstream.
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the original readme follows this notice. the license claims below are as such for this repository as well.
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# Saphyr libraries
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This repository is home to `saphyr-parser`, `saphyr` and soon-to-be
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`saphyr-serde`. These crates provide fully YAML 1.2 compliant parsing and
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manipulation, with a focus on correctness, performance and API friendliness (in that order).
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[`saphyr`](https://docs.rs/saphyr/latest/saphyr/) is the most user-friendly and
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high-level crate, providing quick-and-easy YAML importing, exporting and object
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manipulation.
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```rs
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use saphyr::{Yaml, YamlEmitter};
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let docs = Yaml::load_from_str("[1, 2, 3]").unwrap();
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let doc = &docs[0]; // select the first YAML document
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assert_eq!(doc[0].as_i64().unwrap(), 1); // access elements by index
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let mut out_str = String::new();
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let mut emitter = YamlEmitter::new(&mut out_str);
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emitter.dump(doc).unwrap(); // dump the YAML object to a String
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```
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---
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[`saphyr-parser`](https://docs.rs/saphyr-parser/latest/saphyr_parser/) is the
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parser behind `saphyr`. It provides direct access to the parsing process by
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emitting [YAML
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events](https://docs.rs/saphyr-parser/latest/saphyr_parser/parser/enum.Event.html).
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It does not include YAML to object mapping, but is a lightweight alternative to
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`saphyr` for those interested in building directly atop the parser, without
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having an intermediate conversion to a Rust object. More details on where to
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start are available [on
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doc.rs](https://docs.rs/saphyr-parser/latest/saphyr_parser/parser/trait.EventReceiver.html).
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```rs
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/// Sink of events. Collects them into an array.
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struct EventSink {
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events: Vec<Event>,
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}
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/// Implement `on_event`, pushing into `self.events`.
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impl EventReceiver for EventSink {
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fn on_event(&mut self, ev: Event) {
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self.events.push(ev);
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}
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}
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/// Load events from a yaml string.
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fn str_to_events(yaml: &str) -> Vec<Event> {
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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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```
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## Specification Compliance
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This implementation is fully compatible with the YAML 1.2 specification.
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`saphyr-parser`) tests against (and passes) the [YAML test
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suite](https://github.com/yaml/yaml-test-suite/).
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## License
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Sets of licences are available for each of the crates. Due to this project
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being based on a fork of [chyh1990's
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`yaml-rust`](https://github.com/chyh1990/yaml-rust), there are 2 licenses to be
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included if using `saphyr` or `saphyr-parser`. Refer to the projects' READMEs
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for details.
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## Contribution
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[Fork this repository](https://github.com/saphyr-rs/saphyr/fork) and
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[Create a Pull Request on Github](https://github.com/saphyr-rs/saphyr/compare/master...saphyr-rs:saphyr:master).
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You may need to click on "compare across forks" and select your fork's branch.
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in the work by you, as defined in the Apache-2.0 license, shall
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be dual licensed as above, without any additional terms or conditions.
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## Links
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### `saphyr`
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* [saphyr source code repository](https://github.com/saphyr-rs/saphyr/tree/master/saphyr)
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* [saphyr releases on crates.io](https://crates.io/crates/saphyr)
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* [saphyr documentation on docs.rs](https://docs.rs/saphyr/latest/saphyr/)
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### `saphyr-parser`
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* [saphyr-parser source code repository](https://github.com/saphyr-rs/saphyr/tree/master/parser)
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* [saphyr-parser releases on crates.io](https://crates.io/crates/saphyr-parser)
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* [saphyr-parser documentation on docs.rs](https://docs.rs/saphyr-parser/latest/saphyr-parser/)
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### Other links
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* [yaml-test-suite](https://github.com/yaml/yaml-test-suite)
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* [YAML 1.2 specification](https://yaml.org/spec/1.2.2/)
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