beginning litterate programming
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README.org
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README.org
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[[file:https://cdn.rawgit.com/syl20bnr/spacemacs/442d025779da2f62fc86c2082703697714db6514/assets/spacemacs-badge.svg]]
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#+TITLE: Conlanging layer
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#+author: Lucien “P’undrak” Cartier-Tilet
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#+AUTHOR: Lucien “P’undrak” Cartier-Tilet
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#+PROPERTY: header-args :noweb yes :exports code
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#+PROPERTY: header-args:dot :tangle no :exports code
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[[img/conlang_flag.png]]
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@ -10,7 +12,10 @@
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- [[#features][Features]]
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- [[#graphviz-trees][Graphviz trees]]
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- [[#install][Install]]
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- [[#key-bindings][Key bindings]]
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- [[#licence][Licence]]
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- [[#documentation][Documentation]]
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- [[#functionalities][Functionalities]]
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- [[#graphviz-trees-generation][Graphviz trees generation]]
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* Description
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This layer adds features for conlanging.
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You can then reload your configuration file with ~SPC f e R~, or restart Emacs
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with ~SPC q r~ or ~SPC q R~.
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* Key bindings
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* Licence
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All the code included in this repository is licensed under the GPLv3 license.
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See [[file:LICENCE]].
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| Key Binding | Description |
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|---------------+-----------------------------------------------------------------------|
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| ~SPC m l e l~ | (org-mode only) Translate Eittlandic transliteration into LaTeX runes |
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| ~SPC m l e r~ | (org-mode only) Translate Eittlandic transliteration into runes |
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| ~SPC m l m L~ | (org-mode only) Translate Mattér transliteration into LaTeX runes |
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| ~SPC m l m l~ | (org-mode only) Translate Mattér transliteration into native latin |
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| ~SPC m l m r~ | (org-mode only) Translate Mattér transliteration into runes |
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| ~SPC o l e o~ | Open Eittlandic file |
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| ~SPC o l h o~ | Open Hjelp file |
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| ~SPC o l m o~ | Open Mattér file |
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| ~SPC o l n o~ | Open Proto-Ñyqy file |
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| ~SPC o l o~ | Open the working conlanging directory |
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| ~SPC o l O~ | Open the root conlanging directory |
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| ~SPC o l t o~ | Open Proto-Tãso file |
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* Documentation
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The following is the documentation of the source code of the ~conlanging~
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layer. It is divided in two main parts, describing the two main files of the
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layer: ~funcs.el~ and ~keybindings.el~. First of all, let’s simply describe
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the ~layer.el~ file.
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#+BEGIN_SRC emacs-lisp :tangle layers.el
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(configuration-layer/declare-layer 'conlanging)
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#+END_SRC
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And that’s enough for the ~layer.el~ file! Now, onto the ~funcs.el~ file.
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** Functionalities
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:PROPERTIES:
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:HEADER-ARGS: :tangle funcs.el
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:END:
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Here will be detailed the functionalities of the ~conlanging~ layer. It can
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be divided in several parts.
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*** Graphviz trees generation
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As described above, it is possible to create graphviz trees from Elisp trees
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made from lists. This feature is coded in two functions: one that creates
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the tree itself, and one that generates nodes. The first one that generates
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nodes is declared as a private function (actually, it’s just prefixed with
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~conlanging//~ following Spacemacs’ [[https://www.spacemacs.org/doc/CONVENTIONS.html#spacemacs-core-and-layer][naming convention]]).
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#+BEGIN_SRC emacs-lisp
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(defun conlanging//declare-node (t-node-text t-node-generation)
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"Declares a node in the graphviz source code. The node’s identifier will be
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`t-node-generation', and it will bear the label `t-node-text'."
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(format "%d[label=\"%s\"];" t-node-generation
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t-node-text))
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#+END_SRC
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This can result in a graphviz node declared like so:
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#+BEGIN_SRC dot
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231[label="This is a label"];
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#+END_SRC
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All nodes generated by the function have a unique identifier in the form of
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a number, and its content is only defined by its label. By default, the tree
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created from the graphviz code gives a tree from top to bottom with the
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label not surrounded by anything. Let’s declare our whole function:
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#+BEGIN_SRC emacs-lisp
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(defun conlanging/tree-to-dot (t-tree &optional t-current-generation t-previous-generation)
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"Translates an Elisp t-tree with any number of children per node
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to a corresponding graphviz file that can be executed from dot.
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Arguments:
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- `t-tree': t-tree to convert
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- `t-current-generation': generation number, incremented when
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changing from a node to another node from the same generation,
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multiplied by 10 when going from a node to one of its children.
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- `t-previous-generation': generation number from previous named
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node"
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(cond
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((null t-previous-generation) ;; first call
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(concat "graph{graph[dpi=300];node[shape=plaintext];graph[bgcolor=\"transparent\"];"
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(conlanging//declare-node (car t-tree) 0)
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(conlanging/tree-to-dot (cdr t-tree) 1 0)
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"}"))
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((null t-tree) "") ;; last call in this branch
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((atom (car t-tree)) ;; '("text" () () ()) manage the label
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(concat (conlanging//declare-node (car t-tree)
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t-current-generation)
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;; make link
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(concat (number-to-string t-previous-generation) " -- "
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(number-to-string t-current-generation) ";")
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(conlanging/tree-to-dot (cdr t-tree)
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(+ 1
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(* 10 t-current-generation))
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t-current-generation)))
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((listp (car t-tree)) ;; '(() () ()) manage the branches
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(concat (conlanging/tree-to-dot (car t-tree) ;; child of current node
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t-current-generation
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t-previous-generation)
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(conlanging/tree-to-dot (cdr t-tree)
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(+ 1 t-current-generation)
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t-previous-generation)))))
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#+END_SRC
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