| #!/usr/bin/python |
| # coding=UTF-8 |
| # |
| # Copyright 2014 Google Inc. All rights reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Create a curated subset of NotoSansSymbols for Android.""" |
| |
| __author__ = 'roozbeh@google.com (Roozbeh Pournader)' |
| |
| import os |
| import sys |
| |
| from nototools import subset |
| from nototools import unicode_data |
| |
| # Unicode blocks that we want to include in the font |
| BLOCKS_TO_INCLUDE = """ |
| 20D0..20FF; Combining Diacritical Marks for Symbols |
| 2100..214F; Letterlike Symbols |
| 2190..21FF; Arrows |
| 2200..22FF; Mathematical Operators |
| 2300..23FF; Miscellaneous Technical |
| 2400..243F; Control Pictures |
| 2440..245F; Optical Character Recognition |
| 2460..24FF; Enclosed Alphanumerics |
| 2500..257F; Box Drawing |
| 2580..259F; Block Elements |
| 25A0..25FF; Geometric Shapes |
| 2600..26FF; Miscellaneous Symbols |
| 2700..27BF; Dingbats |
| 27C0..27EF; Miscellaneous Mathematical Symbols-A |
| 27F0..27FF; Supplemental Arrows-A |
| 2800..28FF; Braille Patterns |
| 2900..297F; Supplemental Arrows-B |
| 2980..29FF; Miscellaneous Mathematical Symbols-B |
| 2A00..2AFF; Supplemental Mathematical Operators |
| 2B00..2BFF; Miscellaneous Symbols and Arrows |
| 4DC0..4DFF; Yijing Hexagram Symbols |
| 10140..1018F; Ancient Greek Numbers |
| 10190..101CF; Ancient Symbols |
| 101D0..101FF; Phaistos Disc |
| 1D000..1D0FF; Byzantine Musical Symbols |
| 1D100..1D1FF; Musical Symbols |
| 1D200..1D24F; Ancient Greek Musical Notation |
| 1D300..1D35F; Tai Xuan Jing Symbols |
| 1D360..1D37F; Counting Rod Numerals |
| 1D400..1D7FF; Mathematical Alphanumeric Symbols |
| 1F000..1F02F; Mahjong Tiles |
| 1F030..1F09F; Domino Tiles |
| 1F0A0..1F0FF; Playing Cards |
| 1F700..1F77F; Alchemical Symbols |
| """ |
| |
| # One-off characters to be included. At the moment, this is the Bitcoin sign |
| # (since it's not supported in Roboto yet, and the Japanese TV symbols of |
| # Unicode 9. |
| ONE_OFF_ADDITIONS = { |
| 0x20BF, # ₿ BITCOIN SIGN |
| 0x1F19B, # 🆛 SQUARED THREE D |
| 0x1F19C, # 🆜 SQUARED SECOND SCREEN |
| 0x1F19D, # 🆝 SQUARED TWO K;So;0;L;;;;;N;;;;; |
| 0x1F19E, # 🆞 SQUARED FOUR K;So;0;L;;;;;N;;;;; |
| 0x1F19F, # 🆟 SQUARED EIGHT K;So;0;L;;;;;N;;;;; |
| 0x1F1A0, # 🆠 SQUARED FIVE POINT ONE;So;0;L;;;;;N;;;;; |
| 0x1F1A1, # 🆡 SQUARED SEVEN POINT ONE;So;0;L;;;;;N;;;;; |
| 0x1F1A2, # 🆢 SQUARED TWENTY-TWO POINT TWO;So;0;L;;;;;N;;;;; |
| 0x1F1A3, # 🆣 SQUARED SIXTY P;So;0;L;;;;;N;;;;; |
| 0x1F1A4, # 🆤 SQUARED ONE HUNDRED TWENTY P;So;0;L;;;;;N;;;;; |
| 0x1F1A5, # 🆥 SQUARED LATIN SMALL LETTER D;So;0;L;;;;;N;;;;; |
| 0x1F1A6, # 🆦 SQUARED HC;So;0;L;;;;;N;;;;; |
| 0x1F1A7, # 🆧 SQUARED HDR;So;0;L;;;;;N;;;;; |
| 0x1F1A8, # 🆨 SQUARED HI-RES;So;0;L;;;;;N;;;;; |
| 0x1F1A9, # 🆩 SQUARED LOSSLESS;So;0;L;;;;;N;;;;; |
| 0x1F1AA, # 🆪 SQUARED SHV;So;0;L;;;;;N;;;;; |
| 0x1F1AB, # 🆫 SQUARED UHD;So;0;L;;;;;N;;;;; |
| 0x1F1AC, # 🆬 SQUARED VOD;So;0;L;;;;;N;;;;; |
| 0x1F23B, # 🈻 SQUARED CJK UNIFIED IDEOGRAPH-914D |
| } |
| |
| # letter-based characters, provided by Roboto |
| LETTERLIKE_CHARS_IN_ROBOTO = { |
| 0x2100, # ℀ ACCOUNT OF |
| 0x2101, # ℁ ADDRESSED TO THE SUBJECT |
| 0x2103, # ℃ DEGREE CELSIUS |
| 0x2105, # ℅ CARE OF |
| 0x2106, # ℆ CADA UNA |
| 0x2109, # ℉ DEGREE FAHRENHEIT |
| 0x2113, # ℓ SCRIPT SMALL L |
| 0x2116, # № NUMERO SIGN |
| 0x2117, # ℗ SOUND RECORDING COPYRIGHT |
| 0x211E, # ℞ PRESCRIPTION TAKE |
| 0x211F, # ℟ RESPONSE |
| 0x2120, # ℠ SERVICE MARK |
| 0x2121, # ℡ TELEPHONE SIGN |
| 0x2122, # ™ TRADE MARK SIGN |
| 0x2123, # ℣ VERSICLE |
| 0x2125, # ℥ OUNCE SIGN |
| 0x2126, # Ω OHM SIGN |
| 0x212A, # K KELVIN SIGN |
| 0x212B, # Å ANGSTROM SIGN |
| 0x212E, # ℮ ESTIMATED SYMBOL |
| 0x2132, # Ⅎ TURNED CAPITAL F |
| 0x213B, # ℻ FACSIMILE SIGN |
| 0x214D, # ⅍ AKTIESELSKAB |
| 0x214F, # ⅏ SYMBOL FOR SAMARITAN SOURCE |
| } |
| |
| DEFAULT_EMOJI = unicode_data.get_presentation_default_emoji() |
| |
| EMOJI_ADDITIONS_FILE = os.path.join( |
| os.path.dirname(__file__), os.path.pardir, os.path.pardir, |
| 'unicode', 'additions', 'emoji-data.txt') |
| |
| |
| # Characters we have decided we are doing as emoji-style in Android, |
| # despite UTR#51's recommendation |
| def get_android_emoji(): |
| """Return additional Android default emojis.""" |
| android_emoji = set() |
| with open(EMOJI_ADDITIONS_FILE) as emoji_additions: |
| data = unicode_data._parse_semicolon_separated_data( |
| emoji_additions.read()) |
| for codepoint, prop in data: |
| if prop == 'Emoji_Presentation': |
| android_emoji.add(int(codepoint, 16)) |
| return android_emoji |
| |
| |
| def main(argv): |
| """Subset the Noto Symbols font. |
| |
| The first argument is the source file name, and the second argument is |
| the target file name. |
| """ |
| |
| target_coverage = set() |
| # Add all characters in BLOCKS_TO_INCLUDE |
| for first, last, _ in unicode_data._parse_code_ranges(BLOCKS_TO_INCLUDE): |
| target_coverage.update(range(first, last+1)) |
| |
| # Add one-off characters |
| target_coverage |= ONE_OFF_ADDITIONS |
| # Remove characters preferably coming from Roboto |
| target_coverage -= LETTERLIKE_CHARS_IN_ROBOTO |
| # Remove characters that are supposed to default to emoji |
| android_emoji = get_android_emoji() |
| target_coverage -= DEFAULT_EMOJI | android_emoji |
| |
| # Remove dentistry symbols, as their main use appears to be for CJK: |
| # http://www.unicode.org/L2/L2000/00098-n2195.pdf |
| target_coverage -= set(range(0x23BE, 0x23CC+1)) |
| |
| # Remove COMBINING ENCLOSING KEYCAP. It's needed for Android's color emoji |
| # mechanism to work properly. |
| target_coverage.remove(0x20E3) |
| |
| source_file_name = argv[1] |
| target_file_name = argv[2] |
| subset.subset_font( |
| source_file_name, |
| target_file_name, |
| include=target_coverage) |
| |
| second_subset_coverage = DEFAULT_EMOJI | android_emoji |
| second_subset_file_name = argv[3] |
| subset.subset_font( |
| source_file_name, |
| second_subset_file_name, |
| include=second_subset_coverage) |
| |
| |
| if __name__ == '__main__': |
| main(sys.argv) |
