script for generating HTML docs

diff --git a/generate-documentation.py b/generate-documentation.py
new file mode 100755 (executable)
index 0000000..5b6400f
--- /dev/null
+++ b/generate-documentation.py
@@ -0,0 +1,70 @@
+#!/usr/bin/python
+import json
+import glob
+import re
+
+js = ''
+in_json = False
+for line in file('dygraph.js'):
+  if '<JSON>' in line:
+    in_json = True
+  elif '</JSON>' in line:
+    in_json = False
+  elif in_json:
+    js += line
+
+# TODO(danvk): better errors here.
+assert js
+docs = json.loads(js)
+
+# Go through the tests and find uses of each option.
+for opt in docs:
+  docs[opt]['tests'] = []
+
+def find_braces(txt):
+  """Really primitive method to find text inside of {..} braces.
+  Doesn't work if there's an unmatched brace in a string, e.g. '{'. """
+  out = ''
+  level = 0
+  for char in txt:
+    if char == '{':
+      level += 1
+    if level >= 1:
+      out += char
+    if char == '}':
+      level -= 1
+  return out
+
+prop_re = re.compile(r'\b([a-zA-Z]+):')
+for test_file in glob.glob('tests/*.html'):
+  braced_html = find_braces(file(test_file).read())
+  ms = re.findall(prop_re, braced_html)
+  for opt in ms:
+    if opt in docs and test_file not in docs[opt]['tests']:
+      docs[opt]['tests'].append(test_file)
+
+def name(f):
+  return f.replace('tests/', '').replace('.html', '')
+
+for opt_name in sorted(docs.keys()):
+  opt = docs[opt_name]
+  tests = opt['tests']
+  if not tests:
+    examples_html = '<font color=red>NONE</font>'
+  else:
+    examples_html = ' '.join(
+      '<a href="%s">%s</a>' % (f, name(f)) for f in tests)
+
+  print """
+<p><b>%(name)s</b><br/>
+%(desc)s<br/>
+<i>Type: %(type)s<br/>
+Default: %(default)s</i><br/>
+Examples: %(examples_html)s<br/>
+<br/>
+""" % { 'name': opt_name,
+        'type': opt['type'],
+        'default': opt['default'],
+        'desc': opt['description'],
+        'examples_html': examples_html}
+