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				@@ -208,7 +208,24 @@ would then be [[#sandbox][the sandbox]]. 
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				 ** PROPOSED optional timestamp for output 
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				    Add option to place an (inactive) timestamp at the #+resname, to 
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				    record when that output was generated. 
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				-** PROPOSED use example block for large amounts of stdout output? 
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				+ 
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				+*** source code block timestamps (optional addition) 
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				+    If we did this would we then want to place a timestamp on the 
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				+    source-code block, so that we would know if the results are 
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				+    current or out of date?  This would have the effect of caching the 
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				+    results of calculations and then only re-running if the 
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				+    source-code has changed.  For the caching to work we would need to 
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				+    check not only the timestamp on a source-code block, but also the 
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				+    timestamps of any tables or source-code blocks referenced by the 
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				+    original source-code block. 
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				+ 
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				+**** maintaining source-code block timestamps 
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				+     It may make sense to add a hook to `org-edit-special' which could 
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				+     update the source-code blocks timestamp.  If the user edits the 
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				+     contents of a source-code block directly I can think of no 
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				+     efficient way of maintaining the timestamp. 
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				+ 
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				+** TODO use example block for large amounts of stdout output? 
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				    We're currently `examplizing' with : at the beginning of the line, 
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				    but should larger amounts of output be in a 
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				    \#+begin_example...\#+end_example block? What's the cutoff? > 1 
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				@@ -217,6 +234,11 @@ would then be [[#sandbox][the sandbox]]. 
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				    everything looks OK, and then fold it away. 
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				    I'm addressing this in branch 'examplizing-output'. 
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				+   Yea, that makes sense.  (either that or allow folding of large 
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				+   blocks escaped with =:=). 
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				+ 
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				+   Proposed cutoff of 10 lines, we can save this value in a user 
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				+   customizable variable. 
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				 ** TODO make tangle files read-only? 
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				    With a file-local variable setting, yea that makes sense.  Maybe 
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