feat: add conceals for (sub)*sections

refer: #1978
lervag · Apr 6, 2021 · 948f04b · 948f04b
1 parent be2d3b7
commit 948f04b
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diff --git a/autoload/vimtex/options.vim b/autoload/vimtex/options.vim
@@ -278,6 +278,7 @@ function! vimtex#options#init() abort " {{{1
         \ 'math_fracs': g:vimtex_syntax_conceal_default,
         \ 'math_super_sub': g:vimtex_syntax_conceal_default,
         \ 'math_symbols': g:vimtex_syntax_conceal_default,
+        \ 'sections': g:vimtex_syntax_conceal_default,
         \ 'styles': g:vimtex_syntax_conceal_default,
         \})
   call s:init_option('vimtex_syntax_conceal_cites', {

diff --git a/autoload/vimtex/syntax/core.vim b/autoload/vimtex/syntax/core.vim
@@ -470,6 +470,11 @@ function! vimtex#syntax#core#init() abort " {{{1
     if g:vimtex_syntax_conceal.cites
       call s:match_conceal_cites_{g:vimtex_syntax_conceal_cites.type}()
     endif
+
+    " Conceal section commands
+    if g:vimtex_syntax_conceal.sections
+      call s:match_conceal_sections()
+    endif
   endif
 
   " }}}2
@@ -596,6 +601,7 @@ function! vimtex#syntax#core#init_highlights() abort " {{{1
   highlight def link texNewenvOpt          texOpt
   highlight def link texNewenvParm         texParm
   highlight def link texOptEqual           texSymbol
+  highlight def link texPartConcealed      texCmdPart
   highlight def link texRefOpt             texOpt
   highlight def link texRefConcealedOpt1   texRefOpt
   highlight def link texRefConcealedOpt2   texRefOpt
@@ -1548,3 +1554,15 @@ function! s:match_conceal_cites_icon() abort " {{{1
 endfunction
 
 " }}}1
+function! s:match_conceal_sections() abort " {{{1
+  syntax match texCmdPart "\v\\%(sub)*section>\*?" contains=texPartConcealed nextgroup=texPartArgTitle
+  syntax match texPartConcealed "\\" contained conceal cchar=#
+  syntax match texPartConcealed "sub" contained conceal cchar=#
+  syntax match texPartConcealed "section" contained conceal cchar= 
+
+  call vimtex#syntax#core#new_arg('texPartArgTitle', {
+        \ 'opts': 'contained keepend concealends'
+        \})
+endfunction
+
+" }}}1
diff --git a/doc/vimtex.txt b/doc/vimtex.txt
@@ -2076,6 +2076,9 @@ OPTIONS                                                        *vimtex-options*
       Replace various math symbol commands to an equivalent unicode character.
       This includes quite a lot of replacements, so be warned!
 
+    sections~
+      Conceal `\(sub)*section` commands.
+
     styles~
       Conceal the LaTeX command "boundaries" for italized and bolded style
       commands, i.e. `\emph`, `\textit`, and `\textbf`. This means that one

diff --git a/test/test-syntax/test-conceal.tex b/test/test-syntax/test-conceal.tex
@@ -35,4 +35,12 @@
 $4 \mathit{x} = \mathbf{test}$
 $\mathrm{Re} = \cdots$
 
+\chapter{test}
+
+\section{test}
+
+\subsection{testing}
+
+\subsubsection{testing}
+
 \end{document}