Use fixed width text for compound variable names

src/latexify_recipes.jl

@@ -193,7 +193,14 @@ function _toexpr(O)
     end
     if issym(O) 
         sym = string(nameof(O))
-        return Symbol(replace(sym, NAMESPACE_SEPARATOR => "."))
+        sym = replace(sym, NAMESPACE_SEPARATOR => ".")
+        if length(sym) > 1
+            sym = Latexify.unicode2latex(sym)
+            sym = replace(sym, "_"=>"\\_")
+            return LaTeXString(string("\\texttt", "{", sym, "}"))
+        else
+            return Symbol(sym)
+        end
     end
     !iscall(O) && return O
 

test/latexify_refs/integral1.txt

@@ -1,3 +1,3 @@
 \begin{equation}
-\int_{0}^{1)} dx x
+\int_{0}^{1)} \texttt{dx} x
 \end{equation}

test/latexify_refs/integral2.txt

@@ -1,3 +1,3 @@
 \begin{equation}
-\int_{-\infty}^{\infty)} dx \left( u\left( x \right) \right)^{2}
+\int_{-\infty}^{\infty)} \texttt{dx} \left( u\left( x \right) \right)^{2}
 \end{equation}

test/latexify_refs/integral3.txt

@@ -1,3 +1,3 @@
 \begin{equation}
-\int_{ - z}^{u\left( x \right))} dx x^{2}
+\int_{ - z}^{u\left( x \right))} \texttt{dx} x^{2}
 \end{equation}