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module lang::yaml::Model

rascal-0.34.0

AST model for YAML (loosely based on the serialization model of http://www.yaml.org/spec/1.2/spec.html)

Usage​

import lang::yaml::Model;

Dependencies​

import List;
import Map;
import Set;

data Node​

data Node  
     = sequence(list[Node] \list)
     | scalar(value \value)
     | reference(int anchor)
     | mapping(map[Node, Node] \map)
     ;

function loadYAML​

Node loadYAML(str src)

function dumpYAML​

str dumpYAML(Node yaml)

function checkYAML​

set[str] checkYAML(Node n)

function badAnchors​

set[Node] badAnchors(Node n)

function wronglyTypedScalars​

set[Node] wronglyTypedScalars(Node n)

function okValue​

bool okValue(type[&T <: value] _, value v)

function unsupportedTypes​

set[type[value]] unsupportedTypes(Node n)

function untaggedScalars​

set[Node] untaggedScalars(Node n)

function duplicateAnchors​

set[int] duplicateAnchors(Node n)

function undefinedRefs​

tuple[set[int], set[int]] undefinedRefs(reference(i), set[int] seen, set[int] dupl)

tuple[set[int], set[int]] undefinedRefs(s:sequence(ns), set[int] seen, set[int] dupl)

tuple[set[int], set[int]] undefinedRefs(nod:mapping(m), set[int] seen, set[int] dupl)

default tuple[set[int], set[int]] undefinedRefs(Node n, set[int] seen, set[int] dupl)

function equalNodes​

bool equalNodes(Node x, Node y)

Tests

test testLoadDump​

public test bool testLoadDump() {
  Node n = loadYAML(TEST_YAML);
  str y = dumpYAML(n);
  return equalNodes(n, loadYAML(y));
}