Using VIm’s “Negative Lookahead” to Delete All Lines NOT Containing a Pattern

UPDATE: Please note that “bw1” has notified me of a much simpler solution than what is described here; please see “Using VIm’s “:v” Command to Delete All Lines NOT Containing a Pattern“ Some statements have been struck through in the article below because they are false. I want to delete all lines in the current […]

Update: YouTube “Userstyle”

I have updated my YouTube Userstyle to the latest names they have given to their BS. You can visit the style’s entry at userstyles.org for review and installation: http://userstyles.org/styles/95273/uncluttering-youtube See also: Original announcement (20 Nov 2013).