fix: highlight of \iffalse

The contents after \else should not be highlighted as a comment ref: lervag#1988
julio-b · Feb 1, 2022 · 15a242e · 15a242e
1 parent 7e9102b
commit 15a242e
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diff --git a/autoload/vimtex/syntax/core.vim b/autoload/vimtex/syntax/core.vim
@@ -434,7 +434,7 @@ function! vimtex#syntax#core#init() abort " {{{1
 
   " Highlight \iffalse ... \fi blocks as comments
   syntax region texComment matchgroup=texCmd
-        \ start="^\s*\\iffalse\>" end="\\fi\>"
+        \ start="^\s*\\iffalse\>" end="\\\(fi\|else\)\>"
         \ contains=texCommentConditionals
   syntax region texCommentConditionals matchgroup=texComment
         \ start="\\if\w\+" end="\\fi\>"

diff --git a/test/test-syntax/test-iffalse.tex b/test/test-syntax/test-iffalse.tex
@@ -11,6 +11,7 @@
 \iffalse
 Commented stuff
 Another \ifstuff here \fi
+\ifaa \else \fi
 \ifasd \fi \f \fii
 
 Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
@@ -19,4 +20,16 @@
 gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
 \fi
 
+\iffalse
+Commented stuff
+Another \ifstuff here \fi
+\ifaa \else \fi
+\ifasd \fi \f \fii
+\else
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd
+gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
+\fi
+
 \end{document}