audiobookshelf/server/utils/parseAuthors.js

75 lines
2.2 KiB
JavaScript

const parseFullName = require('./parseFullName')
function parseName(name) {
var parts = parseFullName(name)
var firstName = parts.first
if (firstName && parts.middle) firstName += ' ' + parts.middle
return {
first_name: firstName,
last_name: parts.last
}
}
// Check if this name segment is of the format "Last, First" or "First Last"
// return true is "Last, First"
function checkIsALastName(name) {
if (!name.includes(' ')) return true // No spaces must be a Last name
var parsed = parseFullName(name)
if (!parsed.first) return true // had spaces but not a first name i.e. "von Mises", must be last name only
return false
}
module.exports = (author) => {
if (!author) return null
var splitAuthors = []
// Example &LF: Friedman, Milton & Friedman, Rose
if (author.includes('&')) {
author.split('&').forEach((asa) => splitAuthors = splitAuthors.concat(asa.split(',')))
} else {
splitAuthors = author.split(',')
}
if (splitAuthors.length) splitAuthors = splitAuthors.map(a => a.trim())
var authors = []
// 1 author FIRST LAST
if (splitAuthors.length === 1) {
authors.push(parseName(author))
} else {
var firstChunkIsALastName = checkIsALastName(splitAuthors[0])
var isEvenNum = splitAuthors.length % 2 === 0
if (!isEvenNum && firstChunkIsALastName) {
// console.error('Multi-author LAST,FIRST entry has a straggler (could be roman numerals or a suffix), ignore it')
splitAuthors = splitAuthors.slice(0, splitAuthors.length - 1)
}
if (firstChunkIsALastName) {
var numAuthors = splitAuthors.length / 2
for (let i = 0; i < numAuthors; i++) {
var last = splitAuthors.shift()
var first = splitAuthors.shift()
authors.push({
first_name: first,
last_name: last
})
}
} else {
splitAuthors.forEach((segment) => {
authors.push(parseName(segment))
})
}
}
var firstLast = authors.length ? authors.map(a => a.first_name ? `${a.first_name} ${a.last_name}` : a.last_name).join(', ') : ''
var lastFirst = authors.length ? authors.map(a => a.first_name ? `${a.last_name}, ${a.first_name}` : a.last_name).join(', ') : ''
return {
authorFL: firstLast,
authorLF: lastFirst,
authorsParsed: authors
}
}