Mercurial > vim
view runtime/syntax/sm.vim @ 34232:47385c831d92 v9.1.0061
patch 9.1.0061: UX of visual highlighting can be improved
Commit: https://github.com/vim/vim/commit/e6d8b4662ddf9356da53f56e363b67b524fd8825
Author: Christian Brabandt <cb@256bit.org>
Date: Sun Jan 28 23:33:29 2024 +0100
patch 9.1.0061: UX of visual highlighting can be improved
Problem: UX of visual highlighting can be improved
Solution: Improve readibility of visual highlighting,
by setting better foreground and background
colors
The default visual highlighting currently is nice in that it overlays
the actual syntax highlighting by using a separate distinct background
color.
However, this can cause hard to read text, because the contrast
between the actual syntax element and the background color is way too
low. That is an issue, that has been bothering colorschemes authors for
quite some time so much, that they are defining the Visual highlighting
group to use a separate foreground and background color, so that the
syntax highlighting vanishes, but the text remains readable (ref:
vim/colorschemes#250)
So this is an attempt to perform the same fix for the default Visual
highlighting and just use a default foreground and background color
instead of using reverse.
I also removed the hard-coded changes to the Visual highlighting in
init_highlight. It's not quite clear to me, why those were there and not
added directly to the highlighting_init_<dark|light> struct.
closes: #13663
related: vim/colorschemes#250
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sun, 28 Jan 2024 23:39:23 +0100 |
| parents | 8edf0aeb71b9 |
| children | 02bd0fe77c68 |
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" Vim syntax file " Language: sendmail " Maintainer: Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM> " Last Change: Oct 25, 2016 " Version: 9 " URL: http://www.drchip.org/astronaut/vim/index.html#SYNTAX_SM if exists("b:current_syntax") finish endif " Comments syn match smComment "^#.*$" contains=@Spell " Definitions, Classes, Files, Options, Precedence, Trusted Users, Mailers syn match smDefine "^[CDF]." syn match smDefine "^O[AaBcdDeFfgHiLmNoQqrSsTtuvxXyYzZ]" syn match smDefine "^O\s"he=e-1 syn match smDefine "^M[a-zA-Z0-9]\+,"he=e-1 syn match smDefine "^T" nextgroup=smTrusted syn match smDefine "^P" nextgroup=smMesg syn match smTrusted "\S\+$" contained syn match smMesg "\S*="he=e-1 contained nextgroup=smPrecedence syn match smPrecedence "-\=[0-9]\+" contained " Header Format H?list-of-mailer-flags?name: format syn match smHeaderSep contained "[?:]" syn match smHeader "^H\(?[a-zA-Z]\+?\)\=[-a-zA-Z_]\+:" contains=smHeaderSep " Variables syn match smVar "\$[a-z\.\|]" " Rulesets syn match smRuleset "^S\d*" " Rewriting Rules syn match smRewrite "^R" skipwhite nextgroup=smRewriteLhsToken,smRewriteLhsUser syn match smRewriteLhsUser contained "[^\t$]\+" skipwhite nextgroup=smRewriteLhsToken,smRewriteLhsSep syn match smRewriteLhsToken contained "\(\$[-*+]\|\$[-=][A-Za-z]\|\$Y\)\+" skipwhite nextgroup=smRewriteLhsUser,smRewriteLhsSep syn match smRewriteLhsSep contained "\t\+" skipwhite nextgroup=smRewriteRhsToken,smRewriteRhsUser syn match smRewriteRhsUser contained "[^\t$]\+" skipwhite nextgroup=smRewriteRhsToken,smRewriteRhsSep syn match smRewriteRhsToken contained "\(\$\d\|\$>\d\|\$#\|\$@\|\$:[-_a-zA-Z]\+\|\$[[\]]\|\$@\|\$:\|\$[A-Za-z]\)\+" skipwhite nextgroup=smRewriteRhsUser,smRewriteRhsSep syn match smRewriteRhsSep contained "\t\+" skipwhite nextgroup=smRewriteComment,smRewriteRhsSep syn match smRewriteRhsSep contained "$" syn match smRewriteComment contained "[^\t$]*$" " Clauses syn match smClauseError "\$\." syn match smElse contained "\$|" syn match smClauseCont contained "^\t" syn region smClause matchgroup=Delimiter start="\$?." matchgroup=Delimiter end="\$\." contains=smElse,smClause,smVar,smClauseCont " Define the default highlighting. " Only when an item doesn't have highlighting yet hi def link smClause Special hi def link smClauseError Error hi def link smComment Comment hi def link smDefine Statement hi def link smElse Delimiter hi def link smHeader Statement hi def link smHeaderSep String hi def link smMesg Special hi def link smPrecedence Number hi def link smRewrite Statement hi def link smRewriteComment Comment hi def link smRewriteLhsToken String hi def link smRewriteLhsUser Statement hi def link smRewriteRhsToken String hi def link smRuleset Preproc hi def link smTrusted Special hi def link smVar String let b:current_syntax = "sm" " vim: ts=18