Update runtime files.
diff --git a/runtime/syntax/dot.vim b/runtime/syntax/dot.vim
index 0fdd6ea..68a0f57 100644
--- a/runtime/syntax/dot.vim
+++ b/runtime/syntax/dot.vim
@@ -1,16 +1,22 @@
-" Vim syntax file
" Language: Dot
" Filenames: *.dot
" Maintainer: Markus Mottl <markus.mottl@gmail.com>
" URL: http://www.ocaml.info/vim/syntax/dot.vim
-" Last Change: 2011 May 17 - improved identifier matching + two new keywords
+" Last Change: 2021 Mar 24 - better attr + escape string matching, new keywords (Farbod Salamat-Zadeh)
+" 2011 May 17 - improved identifier matching + two new keywords
" 2001 May 04 - initial version
-" quit when a syntax file was already loaded
-if exists("b:current_syntax")
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+ syntax clear
+elseif exists("b:current_syntax")
finish
endif
+let s:keepcpo = &cpo
+set cpo&vim
+
" Errors
syn match dotParErr ")"
syn match dotBrackErr "]"
@@ -29,39 +35,43 @@
" Strings
syn region dotString start=+"+ skip=+\\\\\|\\"+ end=+"+
+" Escape strings
+syn match dotEscString /\v\\(N|G|E|T|H|L)/ containedin=dotString
+syn match dotEscString /\v\\(n|l|r)/ containedin=dotString
+
" General keywords
-syn keyword dotKeyword digraph node edge subgraph
+syn keyword dotKeyword graph digraph subgraph node edge strict
-" Graph attributes
-syn keyword dotType center layers margin mclimit name nodesep nslimit
-syn keyword dotType ordering page pagedir rank rankdir ranksep ratio
-syn keyword dotType rotate size
-
-" Node attributes
-syn keyword dotType distortion fillcolor fontcolor fontname fontsize
-syn keyword dotType height layer orientation peripheries regular
-syn keyword dotType shape shapefile sides skew width
-
-" Edge attributes
-syn keyword dotType arrowhead arrowsize arrowtail constraint decorateP
-syn keyword dotType dir headclip headlabel headport labelangle labeldistance
-syn keyword dotType labelfontcolor labelfontname labelfontsize
-syn keyword dotType minlen port_label_distance samehead sametail
-syn keyword dotType tailclip taillabel tailport weight
-
-" Shared attributes (graphs, nodes, edges)
-syn keyword dotType color
-
-" Shared attributes (graphs and edges)
-syn keyword dotType bgcolor label URL
-
-" Shared attributes (nodes and edges)
-syn keyword dotType fontcolor fontname fontsize layer style
+" Node, edge and graph attributes
+syn keyword dotType _background area arrowhead arrowsize arrowtail bb bgcolor
+ \ center charset class clusterrank color colorscheme comment compound
+ \ concentrate constraint Damping decorate defaultdist dim dimen dir
+ \ diredgeconstraints distortion dpi edgehref edgetarget edgetooltip
+ \ edgeURL epsilon esep fillcolor fixedsize fontcolor fontname fontnames
+ \ fontpath fontsize forcelabels gradientangle group head_lp headclip
+ \ headhref headlabel headport headtarget headtooltip headURL height href
+ \ id image imagepath imagepos imagescale inputscale K label label_scheme
+ \ labelangle labeldistance labelfloat labelfontcolor labelfontname
+ \ labelfontsize labelhref labeljust labelloc labeltarget labeltooltip
+ \ labelURL landscape layer layerlistsep layers layerselect layersep
+ \ layout len levels levelsgap lhead lheight lp ltail lwidth margin
+ \ maxiter mclimit mindist minlen mode model mosek newrank nodesep
+ \ nojustify normalize notranslate nslimit nslimit1 ordering orientation
+ \ outputorder overlap overlap_scaling overlap_shrink pack packmode pad
+ \ page pagedir pencolor penwidth peripheries pin pos quadtree quantum
+ \ rank rankdir ranksep ratio rects regular remincross repulsiveforce
+ \ resolution root rotate rotation samehead sametail samplepoints scale
+ \ searchsize sep shape shapefile showboxes sides size skew smoothing
+ \ sortv splines start style stylesheet tail_lp tailclip tailhref
+ \ taillabel tailport tailtarget tailtooltip tailURL target tooltip
+ \ truecolor URL vertices viewport voro_margin weight width xdotversion
+ \ xlabel xlp z
" Special chars
syn match dotKeyChar "="
syn match dotKeyChar ";"
syn match dotKeyChar "->"
+syn match dotKeyChar "--"
" Identifier
syn match dotIdentifier /\<\w\+\(:\w\+\)\?\>/
@@ -71,27 +81,41 @@
syn sync maxlines=500
" Define the default highlighting.
-" Only when an item doesn't have highlighting yet
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_dot_syntax_inits")
+ if version < 508
+ let did_dot_syntax_inits = 1
+ command -nargs=+ HiLink hi link <args>
+ else
+ command -nargs=+ HiLink hi def link <args>
+ endif
-hi def link dotParErr Error
-hi def link dotBraceErr Error
-hi def link dotBrackErr Error
+ HiLink dotParErr Error
+ HiLink dotBraceErr Error
+ HiLink dotBrackErr Error
-hi def link dotComment Comment
-hi def link dotTodo Todo
+ HiLink dotComment Comment
+ HiLink dotTodo Todo
-hi def link dotParEncl Keyword
-hi def link dotBrackEncl Keyword
-hi def link dotBraceEncl Keyword
+ HiLink dotParEncl Keyword
+ HiLink dotBrackEncl Keyword
+ HiLink dotBraceEncl Keyword
-hi def link dotKeyword Keyword
-hi def link dotType Type
-hi def link dotKeyChar Keyword
+ HiLink dotKeyword Keyword
+ HiLink dotType Type
+ HiLink dotKeyChar Keyword
-hi def link dotString String
-hi def link dotIdentifier Identifier
+ HiLink dotString String
+ HiLink dotEscString Keyword
+ HiLink dotIdentifier Identifier
+ delcommand HiLink
+endif
let b:current_syntax = "dot"
+let &cpo = s:keepcpo
+unlet s:keepcpo
+
" vim: ts=8