inital scetch for indexing all examples

Author: haraldschilly

.gitignore

@@ -1,3 +1,5 @@
+index.js
+octave/octave-workspace
 cmdline.term
 sage-plots-for*.tex
 *.sout

index.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+# coding: utf8
+
+'''
+This creates an index file `index.js` such that SageMathCloud (https://cloud.sagemath.com)
+knows about each relevant file, information in it, etc.
+
+The format of `index.js` is standard JSON, such that a node.js process can read it easily.
+'''
+
+from json import dump
+from codecs import open
+from glob import glob
+from os.path import isdir
+
+index = []
+
+for fn in glob("*"):
+    if isdir(fn):
+        index.append(fn)
+
+with open("index.js", "w", "utf8") as out:
+    dump(index, out)
+

makefile

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+.PHONY = index
+
+index:
+	@echo "indexing examples for SMC"
+	./index.py 
+