allow chunk output to be re-evaluated

src/config.jl

@@ -34,7 +34,9 @@ const defaultParams =
                                 :fig_env=> nothing,
                                 :out_width=> nothing,
                                 :out_height=> nothing,
-                                :skip=>false
+                                :skip=>false,
+                                :output_as_code=>false,
+                                :output_eval=>true
                                 )
                             )
 #This one can be changed at runtime, initially a copy of defaults

src/run.jl

@@ -289,7 +289,7 @@ function eval_chunk(chunk::CodeChunk, report::Report, SandBox::Module)
 
     #Run post_execute chunks
     for hook in postexecute_hooks
-      chunk = Compat.invokelatest(hook, chunk)
+        chunk = Compat.invokelatest(hook, chunk)
     end
 
     if chunk.options[:term]
@@ -300,6 +300,13 @@ function eval_chunk(chunk::CodeChunk, report::Report, SandBox::Module)
         chunks = collect_results(chunk, ScriptResult())
     end
 
+    if (chunk.options[:output_as_code])
+        newchunk = deepcopy(chunk)
+        newchunk.options[:output_as_code] = false
+        newchunk.options[:eval] = chunk.options[:output_eval]
+        newchunk.content = prod([r.stdout for r in chunk.result])
+        chunks = eval_chunk(newchunk, report, SandBox)
+    end
       #else
      #   chunk.options[:fig] && (chunk.figures = copy(report.figures))
     #end

test/documents/codefile.jl

@@ -0,0 +1,4 @@
+using InteractiveUtils
+@code_native +(1.0, π)
+using Test
+@test 1 == 1

test/documents/jupyter_test.jmd

@@ -11,7 +11,8 @@ And here's some code
 Here's some more complicated code
 
 ```julia
-    @code_native +(1.0, π)
-    using Test
-    @test 1 == 1
+using InteractiveUtils
+@code_native +(1.0, π)
+using Test
+@test 1 == 1
 ```

test/documents/output_as_code.jmd

@@ -0,0 +1,17 @@
+Here's some text
+
+And here's some code
+
+```julia; output_as_code=true
+print("    x = 1
+    y = 2
+    @show x + y
+")
+```
+
+Here's some more complicated code
+
+```julia; output_as_code=true
+txt = read(WEAVE_ARGS["filename"], String)
+print(txt)
+```

test/output_as_code.jl

@@ -0,0 +1,14 @@
+dir = @__DIR__
+refjmd = joinpath(dir, "documents", "jupyter_test.jmd")
+testjmd = joinpath(dir, "documents", "output_as_code.jmd")
+
+
+Weave.weave(refjmd, doctype="pandoc")
+refresult =  read(joinpath(dir, "documents", "jupyter_test.md"), String)
+
+Weave.weave(testjmd, doctype="pandoc",
+            args=Dict("filename" => joinpath(dir, "documents", "codefile.jl")))
+result =  read(joinpath(dir, "documents", "output_as_code.md"), String)
+
+@test result == refresult
+

test/runtests.jl

@@ -59,6 +59,10 @@ using Test
         include("inline_test.jl")
     end
 
+    @testset "Output as code" begin
+        @info("Testing output as code")
+        include("output_as_code.jl")
+    end 
     # @testset "Notebooks" begin
     #     @info("Testing Jupyter options")
     #     include("notebooks.jl")