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dannytheliar / gmail-compose-encoder.js
Created May 3, 2018 16:22
gmail `compose` query parameter encoder/decoder
const fullAlphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
const restrictedAlphabet = 'BCDFGHJKLMNPQRSTVWXZbcdfghjklmnpqrstvwxz';
const threadPrefix = 'thread-';
const messagePrefix = 'msg-';
const isWhitespace = str => /^[\s\xa0]*$/.test(str);
const isInvalidString = str => str ? (str.indexOf(threadPrefix) !== -1 || str.indexOf(messagePrefix) !== -1) : false;
const encode = function(str) {
if (isWhitespace(str)) return str;