Regex help required

Question

I am trying to replace two or more occurences of
(like


) tags together with two



Answer 1

Here's some Groovy code to test your Pattern:

import java.util.regex.*

Pattern brTagPattern = Pattern.compile( "(<\\s*br\\s*/\\s*>\\s*){2,}", Pattern.CASE_INSENSITIVE | Pattern.DOTALL )
def testData = [
  ['',                            ''],
  ['
',                       '
'],
  ['< br/> 
',               '

'],
  ['
 

',            '

'],
  ['
   < br/ > 
',       '

'],
  ['
 
   
',         '

'],
  ['


 

',  '

'],
  ['


w
','

w
'],
 ]

testData.each { inputStr, expected ->
  Matcher matcher = brTagPattern.matcher( inputStr )
  assert expected == matcher.replaceAll( '

' )
}

And everything seems to pass fine...