Description
yaml provides a pure-V YAML reader and writer for common configuration files.
It supports nested mappings, sequences, flow-style collections, block scalars,
tree access through yaml.Any, and generic struct encode/decode.
The generic encode/decode path delegates to the main json module so it
matches existing JSON field behavior, including @[json: 'name'].
Usage
import yaml
struct Config {
name string
enabled bool
ports []int
}
const config_text = '
name: app
enabled: true
ports:
- 8080
- 9090
'
fn main() {
doc := yaml.parse_text(config_text)!
assert doc.value('ports[1]').int() == 9090
config := yaml.decode[Config](config_text)!
assert config.name == 'app'
assert yaml.encode(config).contains('"name": "app"')
}
File helpers
import yaml
struct Config {
name string
}
fn main() {
config := yaml.decode_file[Config]('config.yml')!
yaml.encode_file('config.out.yml', config)!
}