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42050Re: :match and 'hlsearch'

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  • Bram Moolenaar
    Mar 2, 2006
      Benji Fisher wrote:

      > On Thu, Mar 02, 2006 at 12:24:17AM +0100, A. J. Mechelynck wrote:
      > >
      > > Possibility 1: We already have named autocommand groups. Couldn't we
      > > have similar (and similarly optional) match groups, thus allowing an
      > > unlimited number of parallel (named) matches but keeping the present
      > > behaviour by default (if no matchgroups are used)?
      > >
      > > Possibility 2: Alternately, why stay at a meagre two or three? Let's
      > > foresee ten of them (:match or :0match, :1match, .. :9match). As my old
      > > chemistry teacher used to say: "If you want to have enough, make sure
      > > you have too much."
      > I like the first suggestion. Perhaps search highlighting could be
      > made part of the :match hierarchy (matchgroup Search). One issue to
      > consider is priority. If I have
      > matchgroup Foo
      > match Search /[aeiou]/
      > matchgroup Bar
      > match WarningMsg /[abcde]/
      > matchgroup END
      > then how does "a" get highlighted? I suggest letting the last-defined
      > match win. I suspect it is easy to implement; it means that whatever
      > match I define right now shows its effect immediately; and if
      > "matchgroup Search" is defined internally, then :match has priority over
      > hlsearch, so it is backwards compatible.
      > Bram, once again you have proven that the problem with adding new
      > features is that we users just ask for more. It is like juggling:
      > "Wow, you can juggle four! Can you do five?"

      Right. That's why I think three matches are enough. If you try to
      juggle four you'll get confused and drop one.

      You appear to underestimate the impact matches have on redrawing speed.
      There is a penatly for having to redraw more often and a penalty per
      character to check for highlighting. I rather have plugin developers
      stuggle with the small number of matches available than me having to
      struggle to keep redrawing speedy. Sometimes less is better.

      How To Keep A Healthy Level Of Insanity:
      7. Finish all your sentences with "in accordance with the prophecy".

      /// Bram Moolenaar -- Bram@... -- http://www.Moolenaar.net \\\
      /// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
      \\\ download, build and distribute -- http://www.A-A-P.org ///
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