audiobookshelf-pgodwin/server/utils/parsers/parseNameString.js

103 lines
3.3 KiB
JavaScript

//
// This takes a string and parsed out first and last names
// accepts comma separated lists e.g. "Jon Smith, Jane Smith" or "Smith, Jon, Smith, Jane"
// can be separated by "&" e.g. "Jon Smith & Jane Smith" or "Smith, Jon & Smith, Jane"
//
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
}
// Handle name already in First Last format and return Last, First
module.exports.nameToLastFirst = (firstLast) => {
var nameObj = parseName(firstLast)
if (!nameObj.last_name) return nameObj.first_name
else if (!nameObj.first_name) return nameObj.last_name
return `${nameObj.last_name}, ${nameObj.first_name}`
}
// Handle any name string
module.exports.parse = (nameString) => {
if (!nameString) return null
var splitNames = []
// Example &LF: Friedman, Milton & Friedman, Rose
if (nameString.includes('&')) {
nameString.split('&').forEach((asa) => splitNames = splitNames.concat(asa.split(',')))
} else {
splitNames = nameString.split(',')
}
if (splitNames.length) splitNames = splitNames.map(a => a.trim())
var names = []
// 1 name FIRST LAST
if (splitNames.length === 1) {
names.push(parseName(nameString))
} else {
var firstChunkIsALastName = checkIsALastName(splitNames[0])
var isEvenNum = splitNames.length % 2 === 0
if (!isEvenNum && firstChunkIsALastName) {
// console.error('Multi-name LAST,FIRST entry has a straggler (could be roman numerals or a suffix), ignore it')
splitNames = splitNames.slice(0, splitNames.length - 1)
}
if (firstChunkIsALastName) {
var num = splitNames.length / 2
for (let i = 0; i < num; i++) {
var last = splitNames.shift()
var first = splitNames.shift()
names.push({
first_name: first,
last_name: last
})
}
} else {
splitNames.forEach((segment) => {
names.push(parseName(segment))
})
}
}
// Filter out names that have no first and last
names = names.filter(n => n.first_name || n.last_name)
var namesArray = names.map(a => a.first_name ? `${a.first_name} ${a.last_name}` : a.last_name)
var firstLast = names.length ? namesArray.join(', ') : ''
var lastFirst = names.length ? names.map(a => a.first_name ? `${a.last_name}, ${a.first_name}` : a.last_name).join(', ') : ''
return {
nameFL: firstLast, // String of comma separated first last
nameLF: lastFirst, // String of comma separated last, first
names: namesArray // Array of first last
}
}
module.exports.checkNamesAreEqual = (name1, name2) => {
if (!name1 || !name2) return false
// e.g. John H. Smith will be equal to John H Smith
name1 = String(name1).toLowerCase().trim().replace(/\./g, '')
name2 = String(name2).toLowerCase().trim().replace(/\./g, '')
return name1 === name2
}