Detect snippet math contexts

.vim/ftplugin/pandoc/wiki.vim

@@ -1,2 +1,18 @@
 set cc=81
 set cocu=""
+func! GetContext()
+  " https://stackoverflow.com/questions/9464844/how-to-get-group-name-of-highlighting-under-cursor-in-vim
+  if !exists("*synstack")
+    return
+  endif
+  let matches = map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')
+  if index(matches, 'pandocLaTeXInlineMath') >= 0
+    echo 'math_inline'
+  elseif index(matches, 'pandocLaTeXMathBlock') >= 0
+    echo 'math_block'
+  else
+    echo ''
+  endif
+endfunc
+com! -nargs=0 GetContext :call GetContext()
+