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fleshing out the "* A meta-programming language for org-mode" section of org-babel-worg
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@ -141,6 +141,46 @@ Results of Emacs Lisp code evaluation
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| 1 | 3 | 8 | 21 | 55 | 144 | 377 | 987 | 2584 | 6765 |
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* A meta-programming language for org-mode
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Since information can pass freely between source-code blocks and
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org-mode tables you can mix and match languages using each language
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for those tasks to which it is suited. This makes Org-mode files with
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Org-babel into a kind of meta-functional programming language in which
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functions from many languages can work together.
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As an example, lets take some system diagnostics in the shell, and
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then graph them with R.
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1. Shell source code
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#+srcname: directories
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#+begin_src bash :results replace
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cd ~ && du -sc * |grep -v total
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#+end_src
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2. Results of the shell source code (on my system, grab this org-mode
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files and try running it on your own)
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#+resname: directories
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| 72 | "Desktop" |
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| 12156104 | "Documents" |
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| 3482440 | "Downloads" |
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| 2901720 | "Library" |
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| 57344 | "Movies" |
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| 16548024 | "Music" |
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| 120 | "News" |
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| 7649472 | "Pictures" |
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| 0 | "Public" |
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| 152224 | "Sites" |
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| 8 | "System" |
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| 56 | "bin" |
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| 3821872 | "mail" |
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| 10605392 | "src" |
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| 1264 | "tools" |
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3. R source code (which calls the previous shell source code)
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#+srcname: directory-pie
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#+begin_src R :var dirs = directories :session R-pie-example
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pie(dirs[,1], labels = dirs[,2])
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#+end_src
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4. Results of R code [[file:images/dirs.png]]
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* Spreadsheet plugins for org-mode in any language
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* Library of Babel
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What about those source code blocks which are so useful you want to
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