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'use strict';
const yaml = require('yamlish');
function isYAMLBlock(text) {
return !!text.match(/^<!-- YAML/);
}
exports.isYAMLBlock = isYAMLBlock;
function arrify(value) {
return Array.isArray(value) ? value : [value];
}
function extractAndParseYAML(text) {
text = text.trim();
text = text.replace(/^<!-- YAML/, '')
.replace(/-->$/, '');
// js-yaml.safeLoad() throws on error
const meta = yaml.decode(text);
const added = meta.added || meta.Added;
if (added) {
// Since semver-minors can trickle down to previous major versions,
// features may have been added in multiple versions.
meta.added = arrify(added);
}
const deprecated = meta.deprecated || meta.Deprecated;
if (deprecated) {
// Treat deprecated like added for consistency.
meta.deprecated = arrify(deprecated);
}
return meta;
}
exports.extractAndParseYAML = extractAndParseYAML;
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