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23 lines
613 B
JavaScript
23 lines
613 B
JavaScript
5 years ago
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function* parseMetadata(metadata) {
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for (const [key, entry] of Object.entries(metadata)) {
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entry.textUris = entry.formaturi
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.filter(uri => extensionIn(uri, ['.txt', '.utf-8']))
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.map(stripPGHost)
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entry.pictures = entry.formaturi
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.filter(uri => extensionIn(uri, ['.jpg', 'png']))
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.map(stripPGHost)
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delete entry.formaturi
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entry.id = key
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yield entry
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}
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}
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function extensionIn(path, endings) {
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return endings.some(ending => path.endsWith(ending))
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}
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function stripPGHost(uri) {
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return uri.replace('http://www.gutenberg.org', '')
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}
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module.exports = { parseMetadata }
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