Created
October 22, 2016 04:50
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Clojure is the new Perl – Loading Markdown files into Jupyter Notebooks/IPython Notebooks using Specter and Cheshire
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(ns user | |
(:require [clojure.java.io :as io] | |
[clojure.string :as string] | |
[cheshire.core :as cheshire] | |
[com.rpl.specter :as s])) | |
;;; Dependencies: [org.clojure/clojure "1.9.0-alpha13"] | |
;;; [cheshire "5.6.3"] | |
;;; [com.rpl/specter "0.13.0"]] | |
;; Credits: https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter/impl.cljc | |
(s/defnav s-butlast [] | |
(select* [this structure next-fn] (next-fn (butlast structure))) | |
(transform* [this structure next-fn] | |
(let [structurev (vec structure) | |
newpart (next-fn (vec (butlast structure))) | |
res (concat newpart (list (last structurev)))] | |
(if (vector? structure) | |
(vec res) | |
res)))) | |
(defn md-line-seq [md-dir cmd] | |
(let [[_ md-name] (re-matches #"%load_md ([^.].*\.md)" (first cmd))] | |
(->> (io/file md-dir md-name) | |
slurp | |
string/split-lines | |
(s/transform [s-butlast s/ALL] | |
#(str % \newline))))) | |
;; p … path | |
(defn subst-md [nb-p md-dir-p out-p] | |
(let [orig (cheshire/parse-string (slurp nb-p) true) | |
proc (->> orig | |
(s/transform | |
[:cells s/ALL :source #(re-matches #"%load_md [^.].*\.md" | |
(or (first %) ""))] | |
(partial md-line-seq md-dir-p)))] | |
(spit out-p (cheshire/generate-string proc {:pretty true})))) | |
(comment | |
(subst-md "../notebooks/OffSwitchCartPole.ipynb" "../interruptibility" | |
"../notebooks/ProcessedOSCP.ipynb") | |
) | |
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