From 9704738b1e5ad113385eb56be2d499a2935d8892 Mon Sep 17 00:00:00 2001
From: ld0891 <6651667+ld0891@users.noreply.github.com>
Date: Wed, 15 Dec 2021 15:42:21 -0600
Subject: [PATCH] fix: add label env to texMathText

---
 autoload/vimtex/syntax/core.vim |  1 +
 test/test-syntax/test-core.tex  |  8 ++++++++
 test/test-syntax/test-core.vim  | 12 +++++++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/autoload/vimtex/syntax/core.vim b/autoload/vimtex/syntax/core.vim
index 6df1913c4f..03698838b4 100644
--- a/autoload/vimtex/syntax/core.vim
+++ b/autoload/vimtex/syntax/core.vim
@@ -527,6 +527,7 @@ function! vimtex#syntax#core#init() abort " {{{1
         \ 'text%(normal|rm|up|tt|sf|sc)?',
         \ 'intertext',
         \ '[mf]box',
+        \ 'label',
         \]
     execute 'syntax match texMathCmdText'
           \ '"\v\\' . l:re_cmd . '>"'
diff --git a/test/test-syntax/test-core.tex b/test/test-syntax/test-core.tex
index 3dcd2c2a8a..ff02525d87 100644
--- a/test/test-syntax/test-core.tex
+++ b/test/test-syntax/test-core.tex
@@ -115,6 +115,14 @@ \section*{Acknowledgement}
   Lorem ipsum \dots
 \end{theorem}
 
+\begin{equation}
+    e^{2 \pi i} = 1
+    \text{foo}
+    \intertext{bar}
+    \mbox{foo}
+    \label{bar}
+\end{equation}
+
 \begin{thebibliography}{1}
   \bibitem{abc} a citation.
   \bibitem[label]{abc} a citation.
diff --git a/test/test-syntax/test-core.vim b/test/test-syntax/test-core.vim
index ae6f699e55..6811f4a063 100644
--- a/test/test-syntax/test-core.vim
+++ b/test/test-syntax/test-core.vim
@@ -14,8 +14,14 @@ call assert_true(vimtex#syntax#in('texDelim', 64, 39))
 call assert_true(vimtex#syntax#in('texNewthmArgPrinted', 38, 23))
 " call assert_true(vimtex#syntax#in('texTheoremEnvOpt', 114, 18))
 
-call assert_true(vimtex#syntax#in('texCmdBibitem', 119, 3))
-call assert_true(vimtex#syntax#in('texBibitemArg', 119, 13))
-call assert_true(vimtex#syntax#in('texBibitemOpt', 120, 13))
+call assert_true(vimtex#syntax#in('texMathZone', 119, 12))
+call assert_true(vimtex#syntax#in('texMathText', 120, 12))
+call assert_true(vimtex#syntax#in('texMathText', 121, 16))
+call assert_true(vimtex#syntax#in('texMathText', 122, 12))
+call assert_true(vimtex#syntax#in('texMathText', 123, 12))
+
+call assert_true(vimtex#syntax#in('texCmdBibitem', 127, 3))
+call assert_true(vimtex#syntax#in('texBibitemArg', 127, 13))
+call assert_true(vimtex#syntax#in('texBibitemOpt', 128, 13))
 
 call vimtex#test#finished()