The SYaml project provides a Pure Scala YAML 1.2 syntax processor that has no dependencies on external libraries.
This project includes the following:
-
Lexer
Converts YAML files to YEAST tokens.
The lexer and the YEAST tokens are based on Haskell's YamlReference: YAML reference implementation.
-
Parser
Uses the lexer YEAST token output to generate a hierarchical model.
The structure of the model matches the structure created by the YAML Reference Parser.
- Complete YAML 1.2 processor
- Ability to parse all examples from the YAML specification
- Java API and libraries
- JavaScript API and libraries
- Improve error messages
- Improve documentation
- Model golden tests
The following example shows how to iterate through YEAST tokens:
private def generate(yamlFile: File, yeastFile: File) = {
val out = new PrintWriter(yeastFile)
val lexer = YamlLexer(yamlFile)
while (lexer.token != YamlToken.EndStream) {
val data = YeastData(lexer.tokenData, lexer.tokenString)
out.println(data)
lexer.advance()
}
out.close()
}The following example shows how to parse a file:
private def generate(yamlFile: File) = {
val elements = YamlParser(yamlFile).parse()
for (e <- elements) {
println(e)
}
}