const regex = /(?:^[^,]*, |\G(?!^) AND )\K.+?(?= AND |$)/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?:^[^,]*, |\\G(?!^) AND )\\K.+?(?= AND |$)', 'gm')
const str = `NETHERLANDS (THE)
BOLIVIA (PLURINATIONAL STATE OF)
COCOS (KEELING) ISLANDS (THE)
ANTIGUA AND BARBUDA
TEST1, SOME TEXT
TEST2, SAINT HELENA AND ASCENSION AND TRISTAN DA CUNHA
TEST3, BONAIRE AND SINT EUSTATIUS AND SABA`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions