Translates English text to Pig Latin, with proper handling of capitalization, punctuation, and hyphenated phrases.

Igpay Atinlay orfay ouryay AvaScriptjay/YpeScript-tay ojectpray. Atwhay ouldcay ebay etterbay? (Exceptyay aconbay, ofyay oursecay.)

Other Pig-Latin translators exist, but none of them worked as well as I wanted, so I created this one. Highlights:

• It preserves all punctuation and whitespace perfectly, including tabs and line breaks.

• It splits input words on whitespace, slashes, underscores, and dashes (not just whitespace), so perfectly-fried bacon and/or ham is _so_tasty_ translates to erfectlypay-iedfray aconbay andyay/oryay amhay isyay _osay_astytay_.

• It handles capitalization and all-caps nicely, so Bacon is AWESOME! translates to Aconbay isyay AWESOMEYAY!.

• It knows that Y is a consonant at the beginning of a word, and a vowel otherwise, so yellow becomes ellowyay and bytes becomes ytesbay.

• It hyphenates when needed to prevent hard-to-read repeated consonants from appearing at the end of translated words, so sheesh and peep become eesh-shay and eep-pay.

• It removes apostrophes in possessives and contractions to avoid mangling them, while still preserving leading and trailing apostrophes, e.g. A pig's ears aren't tasty, don't eat 'em translates to Ayay igspay earsyay arentyay astytay, ontday eatyay 'emyay - no awkward ig'spay, aren'tyay, or on'tday.

• It doesn't mangle words for which there is no rational Pig Latin translation, such as HTML, Odd13, and v1.0 - they're passed though as-is.

• It allows words to be added to an exclusions list; excluded words will be passed through without translation.

• It has no dependencies, so it won't bloat up your bundle.

• It comes with TypeScript bindings.

import PigLatin from "pig-latinizer"

const pigLatin: PigLatin = new PigLatin()
pigLatin.exclusions.push("woot")
const translated: string = pigLatin.translate("Bacon, woot!")  // Aconbay, woot!

const PigLatin = require("pig-latinizer").default

const pigLatin = new PigLatin()
pigLatin.exclusions.push("woot")
const translated = pigLatin.translate("Bacon, woot!")  // Aconbay, woot!