1 files changed, 25 insertions, 1 deletions
diff --git a/build.py b/build.py
index 16ba007..928f3b3 100755
--- a/build.py
+++ b/build.py
@@ -62,10 +62,26 @@ def get_features(dirname):
 
         features[key] = data
 
-    return dict(
+    features = dict(
         sorted(features.items(), key=lambda t: t[1]['title'].replace('`', '').lower())
     )
 
+    lib_features = {}
+    non_lib_features = {}
+
+    for key, data in features.items():
+        if ('flag' in data and data['flag'] in library_flags) or 'impl for' in data[
+            'title'
+        ]:
+            lib_features[key] = data
+        else:
+            non_lib_features[key] = data
+
+    return dict(lib_features=lib_features, non_lib_features=non_lib_features)
+
+
+with open('lib_feats.txt') as f:
+    library_flags = set([l.strip() for l in f])
 
 with open('caniuse.rs/data/versions.toml') as f:
     versions = toml.load(f)
@@ -91,6 +107,14 @@ with open('target/data.json', 'w') as f:
 
 
 def write_features(f, id, features):
+    if features['non_lib_features']:
+        write_feature_list(f, id + '-non-lib', features['non_lib_features'])
+    if features['lib_features']:
+        f.write('<h3 id="{}">library</h3>'.format(id + '-lib'))
+        write_feature_list(f, id + '-lib', features['lib_features'])
+
+
+def write_feature_list(f, id, features):
     f.write('<ul id={}-list'.format(id))
     if len(features) > 5:
         f.write(' class=columns')