| #!/usr/bin/env python |
| # Copyright (c) 2014 Google Inc. All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| try: |
| import simplejson as json |
| except ImportError: |
| import json |
| |
| import ast |
| import re |
| import sys |
| |
| |
| def _json5_load(lines): |
| # Use json5.loads when json5 is available. Currently we use simple |
| # regexs to convert well-formed JSON5 to PYL format. |
| # Strip away comments and quote unquoted keys. |
| re_comment = re.compile(r"^\s*//.*$|//+ .*$", re.MULTILINE) |
| re_map_keys = re.compile(r"^\s*([$A-Za-z_][\w]*)\s*:", re.MULTILINE) |
| pyl = re.sub(re_map_keys, r"'\1':", re.sub(re_comment, "", lines)) |
| # Convert map values of true/false to Python version True/False. |
| re_true = re.compile(r":\s*true\b") |
| re_false = re.compile(r":\s*false\b") |
| pyl = re.sub(re_true, ":True", re.sub(re_false, ":False", pyl)) |
| return ast.literal_eval(pyl) |
| |
| |
| def _keep_only_required_keys(entry): |
| for key in entry.keys(): |
| if key not in ("name", "longhands", "svg", "inherited"): |
| del entry[key] |
| return entry |
| |
| |
| def properties_from_file(file_name): |
| with open(file_name) as json5_file: |
| doc = _json5_load(json5_file.read()) |
| |
| properties = [] |
| property_names = {} |
| for entry in doc["data"]: |
| if type(entry) is str: |
| entry = {"name": entry} |
| if "alias_for" in entry: |
| continue |
| properties.append(_keep_only_required_keys(entry)) |
| property_names[entry["name"]] = entry |
| |
| properties.sort(key=lambda entry: entry["name"]) |
| |
| # Filter out unsupported longhands. |
| for property in properties: |
| longhands = property.get("longhands") |
| if not longhands: |
| continue |
| if type(longhands) is str: |
| longhands = longhands.split(";") |
| longhands = [longhand for longhand in longhands if longhand in property_names] |
| if not longhands: |
| del property["longhands"] |
| else: |
| property["longhands"] = longhands |
| all_inherited = True |
| for longhand in longhands: |
| longhand_property = property_names[longhand] |
| all_inherited = all_inherited and ("inherited" in longhand_property) and longhand_property["inherited"] |
| if all_inherited: |
| property["inherited"] = True |
| |
| return properties |
| |
| |
| properties = properties_from_file(sys.argv[1]) |
| with open(sys.argv[2], "w") as f: |
| f.write("SDK.CSSMetadata._generatedProperties = %s;" % json.dumps(properties)) |