const regex = /^(?<modifiers>\/(?<crop>\d+x\d+:\d+x\d+)?\/?(?<resize>(?<flipx>\-)?(?<width>\d+)x(?<flipy>\-)?(?<height>\d+))?\/?(?<filters>filters\:([^,\/]+,)*(?:format\((?<format>\w+)\))?[^\/]*\/?)?)?(?<id>\/f\/.+)$
/mg;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?<modifiers>\\\/(?<crop>\\d+x\\d+:\\d+x\\d+)?\\\/?(?<resize>(?<flipx>\\-)?(?<width>\\d+)x(?<flipy>\\-)?(?<height>\\d+))?\\\/?(?<filters>filters\\:([^,\\\/]+,)*(?:format\\((?<format>\\w+)\\))?[^\\\/]*\\\/?)?)?(?<id>\\\/f\\\/.+)$
', 'mg')
const str = `/100x100:450x350/200x200/filters:grayscale()/f/39898/1000x600/d962430746/demo-image-human.jpeg
/600x130/f/39898/2250x1500/c15735a73c/demo-image-human.jpeg
/-230x230/filters:rotate(90)/f/39898/1000x600/d962430746/demo-image-human.jpeg
/f/39898/3310x2192/e4ec08624e/demo-image.jpeg
/200x0/filters:format(png)/f/39898/3310x2192/e4ec08624e/demo-image.jpeg
/f/39898/3310x2192/e4ec08624e/demo-image.jpeg
/200x0/filters:something(),format(png)/f/39898/3310x2192/e4ec08624e/demo-image.jpeg
`;
// 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