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contrib/babel/library-of-babel.org: Added languages section.
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#+title: The Library of Babel
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#+author: Org-mode People
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#+STARTUP: odd hideblocks
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#+STARTUP: oddeven hideblocks
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* Introduction
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The Library of Babel is an extensible collection of ready-made and
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easily-shortcut-callable source-code blocks for handling common
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tasks. Org-babel comes pre-populated with the source-code blocks
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located in this file. It is possible to add source-code blocks from
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any org-mode file to the library by calling =(org-babel-lob-ingest
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"path/to/file.org")=.
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This file is included in worg mainly less for viewing through the
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web interface, and more for contribution through the worg git
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repository. If you have code snippets that you think others may
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find useful please add them to this file and [[file:~/src/worg/worg-git.org::contribute-to-worg][contribute them]] to
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worg.
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The Library of Babel is an extensible collection of ready-made and
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easily-shortcut-callable source-code blocks for handling common tasks.
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Org-babel comes pre-populated with the source-code blocks located in this
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file. It is possible to add source-code blocks from any org-mode file to
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the library by calling =(org-babel-lob-ingest "path/to/file.org")=.
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This file is included in worg mainly less for viewing through the web
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interface, and more for contribution through the worg git repository. If
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you have code snippets that you think others may find useful please add
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them to this file and [[file:~/src/worg/worg-git.org::contribute-to-worg][contribute them]] to worg.
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The raw Org-mode text of this file can be downloaded at
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[[repofile:contrib/babel/library-of-babel.org][library-of-babel.org]]
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* Simple
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A collection of simple utility functions
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A collection of simple utility functions:
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#+srcname: echo
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#+begin_src emacs-lisp :var input="echo'd"
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@ -28,10 +28,13 @@ A collection of simple utility functions
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#+end_src
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* File I/O
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** reading and writing files
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** Reading and writing files
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Read the contents of the file at =file=. The =:results vector= and
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=:results scalar= header arguments can be used to read the contents of
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file as either a table or a string.
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#+srcname: read
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#+begin_src emacs-lisp :var file="" :var format=""
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(if (string= format "csv")
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@ -45,6 +48,7 @@ file as either a table or a string.
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Write =data= to a file at =file=. If =data= is a list, then write it
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as a table in traditional Org-mode table syntax.
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#+srcname: write
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#+begin_src emacs-lisp :var data="" :var file="" :var ext='()
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(flet ((echo (r) (if (stringp r) r (format "%S" r))))
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@ -57,9 +61,12 @@ as a table in traditional Org-mode table syntax.
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nil
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#+end_src
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** remote files
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** Remote files
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**** json
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Read local or remote file in [[http://www.json.org/][json]] format into emacs-lisp objects.
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#+srcname: json
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#+begin_src emacs-lisp :var file='() :var url='()
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(require 'json)
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#+end_src
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**** Google docs
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The following code blocks make use of the [[http://code.google.com/p/googlecl/][googlecl]] Google command line
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tool. This tool provides functionality for accessing Google services
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from the command line, and the following code blocks use /googlecl/
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for reading from and writing to Google docs with Org-mode code blocks.
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****** read a document from Google docs
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****** Read a document from Google docs
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The =google= command seems to be throwing "Moved Temporarily" errors
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when trying to download textual documents, but this is working fine
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for spreadsheets.
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#+source: gdoc-read
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#+begin_src emacs-lisp :var title="example" :var format="csv"
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(let* ((file (concat title "." format))
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A line like the following can be used to read the contents of a
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document as a string.
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: #+call: gdoc-read(title="loremi", :format "txt")
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****** write a document to a Google docs
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****** Write a document to a Google docs
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Write =data= to a google document named =title=. If =data= is tabular
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it will be saved to a spreadsheet, otherwise it will be saved as a
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normal document.
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#+source: gdoc-write
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#+begin_src emacs-lisp :var title="babel-upload" :var data=fibs(n=10) :results silent
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(let* ((format (if (listp data) "csv" "txt"))
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* Plotting code
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** R
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Plot column 2 (y axis) against column 1 (x axis). Columns 3 and beyond, if present, are ignored.
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Plot column 2 (y axis) against column 1 (x axis). Columns 3 and
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beyond, if present, are ignored.
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#+srcname: R-plot(data=R-plot-example-data)
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#+begin_src R
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** Gnuplot
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* Org reference
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** headline references
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** Headline references
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#+source: headline
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#+begin_src emacs-lisp :var headline=top :var file='()
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(save-excursion
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#+call: headline(headline="headline references")
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* Tables
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** LaTeX Table export
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*** booktabs
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This block can be used to wrap a table in the latex =booktabs=
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environment, it takes the following arguments -- all but the first two
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are optional.
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| arg | description |
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|-------+--------------------------------------------|
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| table | a reference to the table |
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(to-tab table))))))
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#+end_src
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*** longtable
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*** Longtable
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This block can be used to wrap a table in the latex =longtable=
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environment, it takes the following arguments -- all but the first two
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are optional.
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| arg | description |
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|-----------+-------------------------------------------------------------|
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| table | a reference to the table |
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#+end_src
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** Trivial python code blocks
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#+srcname: python-identity(a=1)
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#+begin_src python
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a
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#+end_src
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** Arithmetic
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#+source: lob-add
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#+begin_src emacs-lisp :var a=0 :var b=0
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(+ a b)
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%s
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\\end{tikzpicture}" projecttime ntasks tasks milestones dates))
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#+end_src
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* Available languages
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:PROPERTIES:
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:AUTHOR: Bastien
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:END:
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** From Org's core
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| Language | Identifier | Language | Identifier |
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|------------+------------+----------------+------------|
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| Asymptote | asymptote | Awk | awk |
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| Emacs Calc | calc | C | C |
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| C++ | C++ | Clojure | clojure |
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| CSS | css | ditaa | ditaa |
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| Graphviz | dot | Emacs Lisp | emacs-lisp |
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| gnuplot | gnuplot | Haskell | haskell |
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| Javascript | js | LaTeX | latex |
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| Ledger | ledger | Lisp | lisp |
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| Lilypond | lilypond | MATLAB | matlab |
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| Mscgen | mscgen | Objective Caml | ocaml |
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| Octave | octave | Org-mode | org |
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| | | Perl | perl |
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| Plantuml | plantuml | Python | python |
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| R | R | Ruby | ruby |
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| Sass | sass | Scheme | scheme |
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| GNU Screen | screen | shell | sh |
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| SQL | sql | SQLite | sqlite |
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** From Org's contrib/babel/langs
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- ob-oz.el, by Torsten Anders and Eric Schulte
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- ob-fomus.el, by Torsten Anders
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