Check if block rather than checking LineNumberNode

src/latexify_function.jl

@@ -24,6 +24,10 @@ L"\begin{equation}
 """
 function latexify(args...; kwargs...)
  kwargs = merge(default_kwargs, kwargs)
+
+ ## Split multiline quotes before processing
+ args = process_multiline(args...)
+
  result = process_latexify(args...; kwargs...)
 
  should_render = get(kwargs, :render, false)
@@ -39,16 +43,13 @@ end
 
 function process_multiline(args...)
  ## Test if argument contains LineNumberNode, and if true return as array of expressions with LineNumberNodes stripped
- map(x -> x isa Expr && LineNumberNode in typeof.(x.args) ? filter(y -> !(y isa LineNumberNode), x.args) : x, args)
+ map(x -> Base.isexpr(x, :block) ? filter(y -> !(y isa LineNumberNode), x.args) : x, args)
 end
 
 function process_latexify(args...; kwargs...)
  ## Let potential recipes transform the arguments.
  args, kwargs = apply_recipe(args...; kwargs...)
 
- ## Split multiline quotes before processing
- args = process_multiline(args...)
-
  ## If the environment is unspecified, use auto inference.
  env = get(kwargs, :env, :auto)