Crate fast_yaml_core 

fast-yaml-core: Core YAML 1.2.2 parser and emitter.

This crate provides the core functionality for parsing and emitting YAML documents, wrapping the saphyr library with a consistent, stable API.

YAML 1.2.2 Compliance

This library implements the YAML 1.2.2 specification with the Core Schema:

• Null: ~, null, Null, NULL, or empty value
• Boolean: true/false (case-insensitive) - NOT yes/no/on/off (YAML 1.1)
• Integer: Decimal, 0o octal, 0x hexadecimal
• Float: Standard notation, .inf, -.inf, .nan
• String: Plain, single-quoted, double-quoted, literal (|), folded (>)

Examples

Parsing YAML:

use fast_yaml_core::Parser;

let yaml = "name: test\nvalue: 123";
let doc = Parser::parse_str(yaml)?;

Emitting YAML:

use fast_yaml_core::{Emitter, Value, ScalarOwned};

let value = Value::Value(ScalarOwned::String("test".to_string()));
let yaml = Emitter::emit_str(&value)?;

Re-exports

pub use emitter::Emitter;

pub use emitter::EmitterConfig;

pub use error::EmitError;

pub use error::EmitResult;

pub use error::ParseError;

pub use error::ParseResult;

pub use parser::Parser;

pub use value::Array;

Modules

emitter

YAML emitter for serializing documents to strings.

error

Error types for parsing and emitting operations.

parser

YAML parser for deserializing strings to documents.

value

Value types representing YAML data structures.

Structs

OrderedFloat

Re-export OrderedFloat for users working with YAML float values.

Enums

ScalarOwned

The resolved value of a scalar YAML node, freed from borrowing.

Value

Wrapper around saphyr’s YamlOwned type for consistent API.

Type Aliases

Map

The type contained in the YamlOwned::Mapping variant.