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phases: avoid N² behavior in `advanceboundary`...

phases: avoid N² behavior in `advanceboundary` We allowed duplicated entries in the deque, which each entry could potentially insert all its ancestors. So advancing boundary for the full repository would mean each revision would walk all its ancestors, resulting in O(N²) iteration. For repository of any decent size, N² is quickly insane. We introduce a simple set to avoid this and get back to reasonable performance.

"Mathieu Clabaut " - - Load All Authors

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             HGAnnotate.vim
        
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      " $Id: CVSAnnotate.vim,v 1.5 2002/10/01 21:34:02 rhiestan Exp $

      " Vim syntax file

      " Language:	CVS annotate output

      " Maintainer:	Bob Hiestand <bob@hiestandfamily.org>

      " Last Change:	$Date: 2002/10/01 21:34:02 $

      " Remark:	Used by the cvscommand plugin.  Originally written by Mathieu

      " Clabaut

      if version < 600

        syntax clear

      elseif exists("b:current_syntax")

        finish

      endif

      syn match cvsDate 	/\S\S\S \S\+ \d\+ \d\+:\d\+:\d\+ \d\+ [+-]\?\d\+/ contained

      syn match cvsName  	/^\s*\S\+ / 		contained nextgroup=cvsVer

      syn match cvsVer 	/\d\+ / 		contained nextgroup=cvsDate

      syn region cvsHead 	start="^" end=":" 	contains=cvsVer,cvsName,cvsDate

      if !exists("did_cvsannotate_syntax_inits")

      let did_cvsannotate_syntax_inits = 1

      hi link cvsText 	String

      hi link cvsDate 	Comment

      hi link cvsName	Type

      hi link cvsVer	Statement

      endif

      let b:current_syntax="CVSAnnotate"

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g s	Goto summary page
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t s	Toggle sidebar on some pages

				" $Id: CVSAnnotate.vim,v 1.5 2002/10/01 21:34:02 rhiestan Exp $
				" Vim syntax file
				" Language: CVS annotate output
				" Maintainer: Bob Hiestand <bob@hiestandfamily.org>
				" Last Change: $Date: 2002/10/01 21:34:02 $
				" Remark: Used by the cvscommand plugin. Originally written by Mathieu
				" Clabaut
				if version < 600
				syntax clear
				elseif exists("b:current_syntax")
				finish
				endif

				syn match cvsDate /\S\S\S \S\+ \d\+ \d\+:\d\+:\d\+ \d\+ [+-]\?\d\+/ contained
				syn match cvsName /^\s*\S\+ / contained nextgroup=cvsVer
				syn match cvsVer /\d\+ / contained nextgroup=cvsDate
				syn region cvsHead start="^" end=":" contains=cvsVer,cvsName,cvsDate

				if !exists("did_cvsannotate_syntax_inits")
				let did_cvsannotate_syntax_inits = 1
				hi link cvsText String
				hi link cvsDate Comment
				hi link cvsName Type
				hi link cvsVer Statement
				endif

				let b:current_syntax="CVSAnnotate"