114 lines
4.2 KiB
EmacsLisp
114 lines
4.2 KiB
EmacsLisp
;;; oblique.el --- Provide an oblique strategy
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;; Copyright FoAM 2011
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;;
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;; Author: nik gaffney <nik@fo.am>
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;; Created: 2011-11-11
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;; Version: 0.1
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;; Keywords: strategy, tactics, creativity, tools
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;; URL: https://github.com/zzkt/oblique-strategies
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;; This file is not part of GNU Emacs.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; if not, write to the Free Software
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;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; "Oblique Strategies (subtitled over one hundred worthwhile dilemmas)
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;; is a set of published cards created by Brian Eno and Peter Schmidt
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;; first published in 1975, and is now in its fifth, open ended, edition.
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;; Each card contains a phrase or cryptic remark which can be used to break
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;; a deadlock or dilemma situation. Some are specific to music composition;
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;; others are more general."
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;; http://en.wikipedia.org/wiki/Oblique_Strategies
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;;
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;; "I do this with hesitation. The following list is unarguably copyrighted
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;; by Brian Eno himself, and will no doubt be removed from this guide entry
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;; by some uninspired lawyer. The intent of this document is not to gain
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;; financially at the expense of anyone, but to spread the knowledge of this
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;; little known but really keen neato cool idea."
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;; https://h2g2.com/entry/A635528
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;;
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;; "The purpose of this document is to provide a listing of the complete
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;; contents of all three versions of the Oblique Strategies. While my
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;; interest in doing so is scholarly, readers may be interested in
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;; constructing their own "meta-set" of all three editions of the decks,
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;; or in looking at what is added or deleted."
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;; http://music.hyperreal.org/artists/brian_eno/osfaq2.html
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;;
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;; Oblique Strategies © 1975, 1978, 1979, and 2002 Brian Eno and Peter Schmidt
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;;; Configuration:
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;; with use-package...
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;; (use-package litanize
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;; :config (defalias 'insert-oblique-strategy #'oblique-strategy-at-point)
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;; (setq oblique-edition
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;; "strategies/oblique-strategies-condensed.txt")
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;; :bind (("H-i l" . insert-litany)))
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;;; Revision history:
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;;
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;; - 2011-11-11 - protoversion, collection, collation
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;; - 2019-12-12 - emersion, stochastism
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;; - 2023-04-05 - emacs 29 compatibility (via @PuercoPop)
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;;; Code:
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(defgroup oblique-strategies nil
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"Once the search has begun, something will be found."
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:group 'stochastism)
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(defcustom oblique-edition "strategies/oblique-strategies-condensed.txt"
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"Which edition of the Oblique Strategies to draw from?"
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:group 'oblique-strategies
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:type '(choice
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(const :tag "Condensed Edition (2001)" :value "strategies/oblique-strategies-condensed.txt")
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(const :tag "Edition 4 (1996)" :value "strategies/oblique-strategies-edition-4.txt")
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(const :tag "Edition 3 (1979)" :value "strategies/oblique-strategies-edition-3.txt")
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(const :tag "Edition 2 (1978)" :value "strategies/oblique-strategies-edition-2.txt")
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(const :tag "Edition 1 (1975)" :value "strategies/oblique-strategies-edition-1.txt")
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))
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(defun oblique--read (file)
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"Read FILE into a list of lines."
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(with-temp-buffer
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(insert-file-contents (expand-file-name
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file (file-name-directory load-file-name)))
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(split-string (buffer-string) "\n" t)))
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(defvar oblique-strategies (oblique--read oblique-edition))
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(defun oblique--elt (list)
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"Return a random element from LIST."
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(nth (random (length list)) list))
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;;;###autoload
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(defun oblique-strategy ()
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"An oblique strategy."
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(interactive)
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(oblique--elt oblique-strategies))
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;;;###autoload
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(defun oblique-strategy-at-point ()
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"Insert an oblique strategy at point."
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(interactive)
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(insert (oblique-strategy)))
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(provide 'oblique)
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;;; oblique.el ends here
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