removing url with format www in R - r

Question

I need to remove some urls from a dataframe. So far I have been able to eliminate those with the pattern http://. However, there are still some websites in my corpus with the format www.stackoverflow.com or stackoverflow.org
Here is my code
#Sample of text
test_text <- c("la primera posibilidad real de acabar con la violencia del país es www.jorgeorlandomelo.com y luego desatar")
#Trying to remove the website with no results
test_text <- gsub("www[.]//([a-zA-Z]|[0-9]|[$-_#.&+]|[!*\\(\\),])//[.]com", "", test_text)
The outcome should be
test_text
"la primera posibilidad real de acabar con la violencia del país es y luego desatar"

Answer 1

The following regex removes the test url.
test_text <- c("la primera posibilidad real de acabar con la violencia del país es www.jorgeorlandomelo.com y luego desatar",
"bla1 bla2 www.stackoverflow.org etc",
"this that www.nameofthewebiste.com one more"
)
gsub("(^[^w]*)www\\.[^\\.]*\\.[[:alpha:]]{2,3}(.*$)", "\\1\\2", test_text)
#[1] "la primera posibilidad real de acabar con la violencia del país es y luego desatar"
#[2] "bla1 bla2 etc"
#[3] "this that one more"