Today i was trying to write a regular expression to remove blank lines using the PHP method preg_replace. After googling it i found this solution being posted online. PHP: $s = preg_replace(“/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/”,”",$s); Perl: $s =~ s/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]//g; Input: ———————– hello ———————– Output: ———————– hello———————– Not very nice. Seems that this expression removes newline characters from cases [...]
