feat(syntax): initial support for witharrows

refer: #2755
lervag · Jul 11, 2023 · b861aeb · b861aeb
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diff --git a/autoload/vimtex/syntax/p/witharrows.vim b/autoload/vimtex/syntax/p/witharrows.vim
@@ -0,0 +1,14 @@
+" VimTeX - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      [email protected]
+"
+
+function! vimtex#syntax#p#witharrows#load(cfg) abort " {{{1
+  call vimtex#syntax#core#new_region_math('DispWithArrows')
+
+  syntax match texMathCmdText "\\Arrow\>"
+        \ contained skipwhite nextgroup=texMathTextArg
+endfunction
+
+" }}}1
diff --git a/test/test-syntax/test-witharrows.tex b/test/test-syntax/test-witharrows.tex
@@ -0,0 +1,14 @@
+\documentclass{article}
+\usepackage{physics}
+\usepackage{witharrows}
+
+\begin{document}
+
+\begin{DispWithArrows}
+  \dv{i_2}{t} &= - \frac{M}{L_2} \dv{i_1}{t}
+  \Arrow{par intégration} \\
+  \Rightarrow
+  i_2 &= -\frac{M}{L_2}i_1 + \mathrm{cte}
+\end{DispWithArrows}
+
+\end{document}
diff --git a/test/test-syntax/test-witharrows.vim b/test/test-syntax/test-witharrows.vim
@@ -0,0 +1,7 @@
+source common.vim
+
+EditConcealed test-witharrows.tex
+
+if empty($INMAKE) | finish | endif
+
+call vimtex#test#finished()