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index.js
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const EOL = '\n'; //require('os').EOL;
const patterns = require('./patterns');
const transliterate = require('./transliterate');
const replacements = require('./replacements');
module.exports = referencesLocalization;
/**
* @param {String} input
*
* @typedef {Object} Answer
* @property {String} text
* @property {Array.<String>} warnings
*
* @return {Answer}
*/
function referencesLocalization (input) {
const warnings = [];
const text = input.split(EOL).map(processString).join(EOL);
return {
text,
warnings
};
/**
* @param {String} input
* @return {String}
*/
function processString (input) {
input = input.trim();
if (input === '') {
return input;
}
let start = [];
let endAsText = '';
const space = ' ';
const words = input.split(space);
let caret = 0;
function warn (message) {
let context = words[caret];
let preposition = 'В';
if (!context) {
preposition = 'После';
context = words[caret-1];
}
warnings.push(`${preposition} \`${context}\` ${message}`);
}
/**
* Порядковый номер
*/
const number = words[caret];
// Ожидается порядковый номер с точкой
if (/^\d+\.$/.test(number)) {
start.push(number);
caret++;
}
/**
* Список фамилий и иинициалов через запятую
*/
let nextAuthor = true;
const authors = [];
let currentAuthor, lastAuthor;
while (nextAuthor) {
let family = words[caret];
if (!family) break;
if (!patterns.isFamily(family)) {
warn('фамилия не распознана');
break;
}
caret++;
let initials = words[caret];
if (!initials) break;
if (initials.endsWith(',')) {
initials = initials.substr(0, initials.length - 1);
} else {
nextAuthor = false;
}
if (!patterns.isInitials(initials)) {
warn('инициалы не распознаны');
caret--;
break;
}
caret++;
currentAuthor = transliterate(family) + ',' + space + transliterate(initials);
/**
* Склеиваем авторов через запятую
* Если в конце авторов нет "и другие (et al.)",
* то перед последним автором ставится "and"
* После списка авторов ставится запятая
*/
if (nextAuthor) {
if (lastAuthor) {
authors.push(lastAuthor + ',');
}
lastAuthor = currentAuthor;
} else {
if (words[caret] === 'et' && words[caret+1] === 'al.') {
if (lastAuthor) {
authors.push(lastAuthor + ',');
}
authors.push(currentAuthor);
authors.push('et al.,');
caret += 2;
} else {
if (lastAuthor) {
authors.push(lastAuthor + ' and');
}
authors.push(currentAuthor + ',');
}
}
}
start = start.concat(authors);
const startAsText = start.length > 0 ? start.join(space) + space : '';
endAsText = words.splice(caret).join(space);
replacements.forEach(function (replacement) {
endAsText = endAsText.replace(replacement.from, replacement.to);
});
return startAsText + endAsText;
}
}