message: Do not supersed $$...$$ and $...$ in doctex mode.
  This is already handled correctly by latex3.
diff: <key>name</key>
  <string>invalid</string>
  </dict>
  - <dict>
  - <key>begin</key>
  - <string>(\$\$|\$)</string>
  - <key>beginCaptures</key>
  - <dict>
  - <key>1</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.string.begin.latex</string>
  - </dict>
  - </dict>
  - <key>end</key>
  - <string>(\1)</string>
  - <key>endCaptures</key>
  - <dict>
  - <key>1</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.string.end.latex</string>
  - </dict>
  - </dict>
  - <key>name</key>
  - <string>support.class.math.latex</string>
  - <key>patterns</key>
  - <array>
  - <dict>
  - <key>match</key>
  - <string>\\\$</string>
  - <key>name</key>
  - <string>constant.character.escape.tex</string>
  - </dict>
  - <dict>
  - <key>include</key>
  - <string>text.tex#math</string>
  - </dict>
  - <dict>
  - <key>include</key>
  - <string>$base</string>
  - </dict>
  - </array>
  - </dict>
  <dict>
  <key>include</key>
  <string>text.tex.latex.expl3</string>
  