package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?:https?://(?:[\w-]+\.)?(?:facebook\.com|facebookwkhpilnemxj7asaniu7vnjjbiltxjqhye3mhbshg7kx5tfyd\.onion)/(?:[^#]*?\#!/)?(?:(?:video/video\.php|photo\.php|video\.php|video/embed|story\.php|watch(?:/live)?/?)\?(?:.*?)(?:v|video_id|story_fbid)=|[^/]+/videos/(?:[^/]+/)?|[^/]+/posts/|groups/[^/]+/permalink/|watchparty/)|facebook:)(\d+)`)
var str = `https://www.facebook.com/video.php?v=637842556329505&fref=nf
https://www.facebook.com/video.php?v=274175099429670
https://www.facebook.com/video.php?v=957955867617029
https://www.facebook.com/maxlayn/posts/10153807558977570
https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903
https://www.facebook.com/barackobama/posts/10153664894881749
https://www.facebook.com/cnn/videos/10155529876156509/
https://www.facebook.com/yaroslav.korpan/videos/1417995061575415/
https://www.facebook.com/LaGuiaDelVaron/posts/1072691702860471
https://www.facebook.com/groups/1024490957622648/permalink/1396382447100162/
https://www.facebook.com/video.php?v=10204634152394104
https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf
https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater
facebook:544765982287235
https://www.facebook.com/groups/164828000315060/permalink/764967300301124/
https://zh-hk.facebook.com/peoplespower/videos/1135894589806027/
https://www.facebookwkhpilnemxj7asaniu7vnjjbiltxjqhye3mhbshg7kx5tfyd.onion/video.php?v=274175099429670
https://www.facebook.com/onlycleverentertainment/videos/1947995502095005/
https://www.facebook.com/WatchESLOne/videos/359649331226507/
https://www.facebook.com/100033620354545/videos/106560053808006/
https://www.facebook.com/watch/?v=647537299265662
https://www.facebook.com/PankajShahLondon/posts/10157667649866271
https://m.facebook.com/Alliance.Police.Department/posts/4048563708499330
https://www.facebook.com/groups/ateistiskselskab/permalink/10154930137678856/
https://www.facebook.com/watch/live/?v=1823658634322275
https://www.facebook.com/watchparty/211641140192478`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
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 Golang, please visit: https://golang.org/pkg/regexp/