Refractive index database into C incomplete draft.

Former-commit-id: fbfce8297f16400954fa3a1a1d24b980b67d0453

riinfo2c.py

@@ -0,0 +1,31 @@
+'''INCOMPLETE! This will read read the refractiveindex.info yaml files
+and transforms the database into a C source.'''
+
+import re
+import os
+try:
+    from yaml import CLoader as Loader, CDumper as Dumper
+except ImportError:
+    from yaml import Loader, Dumper
+
+# Right now, we can process only the 'tabulated nk' data
+searchfor = '- type: tabulated nk'
+searchfor = re.compile(searchfor)
+
+ridatadir = "/u/46/necadam1/unix/repo/refractiveindex.info-database/database/data"
+
+nktables = dict()
+
+def find_files_by_pattern (pattern, dir):
+  r = re.compile(pattern)
+  for parent, dnames, fnames in os.walk(ridatadir):
+    for fname in fnames:
+        filename = os.path.join(parent, fname)
+        if os.path.isfile(filename):
+            with open(filename) as f:
+                text = f.read()
+                if r.search(text):
+                    yield (
+
+
+