From 0c847f2378f1a7e8342fd60265a1ae3412694c0f Mon Sep 17 00:00:00 2001
From: Matti Pastell <matti.pastell@helsinki.fi>
Date: Fri, 22 Apr 2016 09:26:27 +0300
Subject: [PATCH] Added tangle option to code chunks, closes #33

---
 src/Weave.jl                        | 15 +++++++++------
 src/config.jl                       |  1 +
 test/documents/chunk_options.noweb  |  2 +-
 test/documents/chunk_options_ref.jl |  3 ---
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/Weave.jl b/src/Weave.jl
index 4725704..5dc6cc3 100644
--- a/src/Weave.jl
+++ b/src/Weave.jl
@@ -60,13 +60,16 @@ function tangle(source ; out_path=:doc, informat="noweb")
     cwd = get_cwd(doc, out_path)
 
     outname = "$(cwd)/$(doc.basename).jl"
-    open(outname, "w") do io
-        for chunk in doc.chunks
-            if typeof(chunk) == CodeChunk
-                write(io, chunk.content*"\n")
-            end
-        end
+  open(outname, "w") do io
+    for chunk in doc.chunks
+      if typeof(chunk) == CodeChunk
+          options = merge(rcParams[:chunk_defaults], chunk.options)
+          if options[:tangle]
+            write(io, chunk.content*"\n")
+          end
+      end
     end
+  end
 
     info("Writing to file $(doc.basename).jl")
 end
diff --git a/src/config.jl b/src/config.jl
index 9cb8f0b..7f6acb3 100644
--- a/src/config.jl
+++ b/src/config.jl
@@ -13,6 +13,7 @@ const defaultParams =
                                 :fig=> true,
                                 :include=> true,
                                 :eval => true,
+                                :tangle => true,
                                 :cache => false,
                                 :fig_cap=> nothing,
                                 #Size in inches
diff --git a/test/documents/chunk_options.noweb b/test/documents/chunk_options.noweb
index 884a7ff..0dc98c7 100644
--- a/test/documents/chunk_options.noweb
+++ b/test/documents/chunk_options.noweb
@@ -16,7 +16,7 @@ println(x)
 @
 
 
-<<eval=false>>=
+<<eval=false; tangle=false>>=
 y = randn(5)
 println("Don't eval, but show code")
 @
diff --git a/test/documents/chunk_options_ref.jl b/test/documents/chunk_options_ref.jl
index 445d940..efc2dff 100644
--- a/test/documents/chunk_options_ref.jl
+++ b/test/documents/chunk_options_ref.jl
@@ -8,9 +8,6 @@ println(x)
 println("Results without code")
 println(x)
 
-y = randn(5)
-println("Don't eval, but show code")
-
 y = 1:5
 println(y)