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playground.js
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playground.js
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define(
['lex', 'parse', 'evaluate', 'builtins', 'xml', 'sexpr']
.map(name => `./llama/${name}`),
function (Lex, Parse, Evaluate, Builtins, Xml, Sexpr) {
var calculated = {};
function onToggle() {
const radios = document.getElementsByName("showWhat"),
display = document.getElementById("output");
radios.forEach(radio => {
if (radio.checked) {
display.value = calculated[radio.value] || "";
}
});
}
function pprint(value) {
return JSON.stringify(value, null, 2);
}
function onInput() {
const entry = document.getElementById("input"),
display = document.getElementById("output");
try {
const input = entry.value;
const tokens = Lex.tokens(input);
calculated.tokens = pprint(tokens);
const tree = Parse.parse(tokens);
calculated.parse = pprint(tree);
const value = Evaluate.evaluate(tree, Builtins.defaultEnvironment);
calculated.evaluate = pprint(value);
const sexpr = Sexpr.sexpr(value);
calculated.sexpr = sexpr;
const node = Xml.toNode(value);
calculated.nodes = pprint(node);
const text = Xml.toXml(node);
calculated.text = text;
display.style.backgroundColor = '';
}
catch (error) {
display.style.backgroundColor = '#FFF0F0';
throw error;
}
finally {
onToggle();
}
}
return {onInput, onToggle};
});