redact-pii/lib/built-ins/NameRedactor.js

Remove personally identifiable information from text.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NameRedactor = void 0;
const _wellKnownNames = require("./well-known-names.json");
const greetingRegex = /(^|\.\s+)(dear|hi|hello|greetings|hey|hey there)/gi;
const closingRegex = /(thx|thanks|thank you|regards|best|[a-z]+ly|[a-z]+ regards|all the best|happy [a-z]+ing|take care|have a [a-z]+ (weekend|night|day))/gi;
const greetingOrClosing = new RegExp('(((' + greetingRegex.source + ')|(' + closingRegex.source + '\\s*[,.!]*))[\\s-]*)', 'gi');
const genericName = new RegExp('( ?(([A-Z][a-z]+)|([A-Z]\\.)))+([,.]|[,.]?$)', 'gm');
const wellKnownNames = new RegExp('\\b(\\s*)(\\s*(' + _wellKnownNames.join('|') + '))+\\b', 'gim');
class NameRedactor {
    constructor(replaceWith = 'PERSON_NAME') {
        this.replaceWith = replaceWith;
    }
    redact(textToRedact) {
        greetingOrClosing.lastIndex = 0;
        genericName.lastIndex = 0;
        let greetingOrClosingMatch = greetingOrClosing.exec(textToRedact);
        while (greetingOrClosingMatch !== null) {
            genericName.lastIndex = greetingOrClosing.lastIndex;
            let genericNameMatch = genericName.exec(textToRedact);
            if (genericNameMatch !== null && genericNameMatch.index === greetingOrClosing.lastIndex) {
                let suffix = genericNameMatch[5] === null ? '' : genericNameMatch[5];
                textToRedact =
                    textToRedact.slice(0, genericNameMatch.index) +
                        this.replaceWith +
                        suffix +
                        textToRedact.slice(genericNameMatch.index + genericNameMatch[0].length);
            }
            greetingOrClosingMatch = greetingOrClosing.exec(textToRedact);
        }
        textToRedact = textToRedact.replace(wellKnownNames, '$1' + this.replaceWith);
        return textToRedact;
    }
}
exports.NameRedactor = NameRedactor;
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