Convert Settings.in, CSSValueKeywords.in, SVGCSSValueKeywords.in to json5

third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py

Index: third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py
diff --git a/third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py b/third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py
index 91fcb91019ae6878d5b94862eee0fd13e20d3e6f..b22e62dd3880ce965112e792368227c51a8c323e 100755
--- a/third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py
+++ b/third_party/WebKit/Source/devtools/scripts/build/generate_supported_css.py
@@ -35,38 +35,30 @@ except ImportError:
 import sys
 import re
 
+from json5_generator import Json5File  # pylint: disable=W0403
+
 def properties_from_file(file_name):
+    doc = Json5File.load_from_files([file_name])
+
     properties = []
     propertyNames = set()
-    with open(file_name, "r") as f:
-        for line in f:
-            line = line.strip()
-            if not line or line.startswith("//") or "alias_for" in line:
-                continue
-            partition = re.split("[, ]", line)
-            name = partition[0]
-            attributes = partition[1:]
-            entry = {"name": name}
-            if "inherited" in attributes:
-                entry["inherited"] = True
-            if "svg" in attributes:
-                entry["svg"] = True
-            propertyNames.add(name)
-            longhands = line.partition("longhands=")[2].partition(",")[0]
-            if longhands:
-                entry["longhands"] = longhands.split(";")
-            properties.append(entry)
+    for entry in doc.name_dictionaries:
+        if entry["alias_for"]:
+            continue
+        properties.append(entry)
+        propertyNames.add(entry["name"])
 
     # Filter out unsupported longhands.
     for property in properties:
         if "longhands" not in property:
             continue
-        longhands = property["longhands"]
+        longhands = property["longhands"].split(";")
         longhands = [longhand for longhand in longhands if longhand in propertyNames]
         if not longhands:
             del property["longhands"]
         else:
             property["longhands"] = longhands
+
     return properties
 
 properties = properties_from_file(sys.argv[1])