added integration directory for org-tangle (from Eric N.'s into email)

org-tangle-integration/README.txt

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+text line 1
+text line 2
+text line 3

org-tangle-integration/article

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+From: "Eric H. Neilsen, Jr." <neilsen@fnal.gov>
+Subject: [Orgmode] A tool for creating source code files from example and src blocks in org files
+To: emacs-orgmode@gnu.org
+Date: Tue, 02 Jun 2009 13:50:58 -0500
+
+Hi,
+
+First, thank you Carsten and others, for putting this thing together;
+org-mode is the most useful tool I've run across in a long time.
+
+I recently put together a few commands to create source code files
+from SRC and EXAMPLE blocks in org-mode files. The original idea is to
+be able to compile examples in my notes without needing to merge them
+into a separate source file by hand. As I was writing it I realized
+this is exactly the same tool one needs to turn org-mode into a
+literate programming tool (see http://www.literateprogramming.com/ ),
+so I adopted some of the nomenclature. (I tried literate programming a
+few years ago, and gave up in frustration with the tools. I am tempted
+to try again with org-mode.)
+
+The two user level commands are org-tangle and org-untangle, best
+explained through example. Running org-tangle in a buffer that looks
+like this:
+
+---------------------- begin /tmp/test.org ---------------------------
+* Some file
+
+Some text here
+
+#+CHUNK file1.sh 1
+#+BEGIN_SRC bash
+echo "line 1"
+echo "line 2"
+#+END_SRC
+
+more text
+
+** Some subsection
+
+#+CHUNK file1.sh 2
+#+BEGIN_SRC bash
+echo "line 5"
+echo "line 6"
+#+END_SRC
+
+blah blah blah
+
+#+CHUNK README.txt 1
+#+BEGIN_EXAMPLE
+text line 1
+text line 2
+text line 3
+#+END_EXAMPLE
+
+foo foo bar baz
+
+#+CHUNK file1.sh 1.5
+#+BEGIN_SRC bash
+echo "line 3"
+echo "line 4"
+#+END_SRC
+-------------- end /tmp/test.org ----------------
+
+results in the creation of these two files, opened in emacs buffers:
+
+------------- begin /tmp/file1.sh ----------------
+#      ORGCHUNK /tmp/test.org  1
+echo "line 1"
+echo "line 2"
+#      ORGCHUNK /tmp/test.org  1.5
+echo "line 3"
+echo "line 4"
+#      ORGCHUNK /tmp/test.org  2
+echo "line 5"
+echo "line 6"
+------------- end /tmp/file1.sh ---------------------
+
+and
+
+------------ begin /tmp/README.txt -------------
+text line 1
+text line 2
+text line 3
+------------ end /tmp/README.txt ---------------
+
+If you then edit file1.sh and run org-untangle in the buffer, changes
+to it will overwrite the literal blocks in the org-mode file from
+whence they came.
+
+Is there any interest in this? My organization's rules for releasing
+code to open source projects are being revised, but I am likely to be
+able to do so under a BSD-like license. If there is interest, I will
+push to try and figure out how to do this, and maybe even see if I can
+do the assignment of copyright stuff needed for it to get under the
+main umbrella (although I am not optimistic).
+
+(If anyone feels like rewriting it, that would be even better; aside
+from a fairly straightforward .emacs, this is my first ever lisp code,
+so it is likely to need cleaning and refactoring.)
+
+   -Eric
+
+-- 
+Eric H. Neilsen, Jr.
+http://home.fnal.gov/~neilsen
+
+
+
+_______________________________________________
+Emacs-orgmode mailing list
+Remember: use `Reply All' to send replies to the list.
+Emacs-orgmode@gnu.org
+http://lists.gnu.org/mailman/listinfo/emacs-orgmode
+

org-tangle-integration/file1.sh

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+#      ORGCHUNK /tmp/test.org  1
+echo "line 1"
+echo "line 2"
+#      ORGCHUNK /tmp/test.org  1.5
+echo "line 3"
+echo "line 4"
+#      ORGCHUNK /tmp/test.org  2
+echo "line 5"
+echo "line 6"

org-tangle-integration/test.org

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+* Some file
+
+Some text here
+
+#+CHUNK file1.sh 1
+#+BEGIN_SRC bash
+echo "line 1"
+echo "line 2"
+#+END_SRC
+
+more text
+
+** Some subsection
+
+#+CHUNK file1.sh 2
+#+BEGIN_SRC bash
+echo "line 5"
+echo "line 6"
+#+END_SRC
+
+blah blah blah
+
+#+CHUNK README.txt 1
+#+BEGIN_EXAMPLE
+text line 1
+text line 2
+text line 3
+#+END_EXAMPLE
+
+foo foo bar baz
+
+#+CHUNK file1.sh 1.5
+#+BEGIN_SRC bash
+echo "line 3"
+echo "line 4"
+#+END_SRC