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patch 9.1.0030: Cannot use terminal alternate font

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Problem:  Cannot use terminal alternate fonts (PMunch)
Solution: Support terminal alternate fonts using
          CSI SGR 10-20 and t_CF code (PMunch)

Add support for alternate font highlighting

This adds support for alternate font highlighting using CSI SGR 10-20.
Few terminals currently support this, but with added tool support this
should improve over time. The change here is more or less taken from how
colors are configured and applied, but there might be some parts I
missed while implementing it. Changing fonts is done through the new
`:hi ctermfont` attribute which takes a number, 0 is the normal font, and
the numbers 1-9 select an "alternative" font. Which fonts are in use is
up to the terminal.

fixes: #13513
closes: #13537

Signed-off-by: PMunch <peterme@peterme.net>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
PMunch
2023-11-15 15:35:49 +01:00
committed by Christian Brabandt
parent eb3475df0d
commit a606f3ac03
13 changed files with 130 additions and 8 deletions
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5
runtime/syntax/vim.vim
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@@ -9,6 +9,7 @@
" 2023 Dec 21 by Vim Project (improve ex command matching)
" 2023 Dec 30 by Vim Project (:syntax improvements)
" 2024 Jan 14 by Vim Project (TermResponseAll autocommand)
" 2024 Jan 15 by Vim Project (:hi ctermfont attribute)
" Version: 9.0-25
" URL: http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
" Automatically generated keyword lists: {{{1
@@ -663,7 +664,7 @@ syn match vimHiGuiFontname contained "'[a-zA-Z\-* ]\+'"
syn match vimHiGuiRgb contained "#\x\{6}"
" Highlighting: hi group key=arg ... {{{2
syn cluster vimHiCluster contains=vimGroup,vimHiGroup,vimHiTerm,vimHiCTerm,vimHiStartStop,vimHiCtermFgBg,vimHiCtermul,vimHiGui,vimHiGuiFont,vimHiGuiFgBg,vimHiKeyError,vimNotation
syn cluster vimHiCluster contains=vimGroup,vimHiGroup,vimHiTerm,vimHiCTerm,vimHiStartStop,vimHiCtermFgBg,vimHiCtermul,vimHiCtermfont,vimHiGui,vimHiGuiFont,vimHiGuiFgBg,vimHiKeyError,vimNotation
syn region vimHiKeyList contained oneline start="\i\+" skip="\\\\\|\\|" end="$\||" contains=@vimHiCluster
if !exists("g:vimsyn_noerror") && !exists("g:vimsyn_vimhikeyerror")
syn match vimHiKeyError contained "\i\+="he=e-1
@@ -673,6 +674,7 @@ syn match vimHiStartStop contained "\c\(start\|stop\)="he=e-1 nextgroup=vimHiTer
syn match vimHiCTerm contained "\ccterm="he=e-1 nextgroup=vimHiAttribList
syn match vimHiCtermFgBg contained "\ccterm[fb]g="he=e-1 nextgroup=vimHiNmbr,vimHiCtermColor,vimFgBgAttrib,vimHiCtermError
syn match vimHiCtermul contained "\cctermul="he=e-1 nextgroup=vimHiNmbr,vimHiCtermColor,vimFgBgAttrib,vimHiCtermError
syn match vimHiCtermfont contained "\cctermfont="he=e-1 nextgroup=vimHiNmbr,vimHiCtermColor,vimFgBgAttrib,vimHiCtermError
syn match vimHiGui contained "\cgui="he=e-1 nextgroup=vimHiAttribList
syn match vimHiGuiFont contained "\cfont="he=e-1 nextgroup=vimHiFontname
syn match vimHiGuiFgBg contained "\cgui\%([fb]g\|sp\)="he=e-1 nextgroup=vimHiGroup,vimHiGuiFontname,vimHiGuiRgb,vimFgBgAttrib
@@ -951,6 +953,7 @@ if !exists("skip_vim_syntax_inits")
hi def link vimFgBgAttrib vimHiAttrib
hi def link vimFuncEcho vimCommand
hi def link vimHiCtermul vimHiTerm
hi def link vimHiCtermfont vimHiTerm
hi def link vimFold Folded
hi def link vimFor vimCommand
hi def link vimFTCmd vimCommand