1#!/usr/bin/python 2# coding=UTF-8 3# 4# Copyright 2014 Google Inc. All rights reserved. 5# 6# Licensed under the Apache License, Version 2.0 (the "License"); 7# you may not use this file except in compliance with the License. 8# You may obtain a copy of the License at 9# 10# http://www.apache.org/licenses/LICENSE-2.0 11# 12# Unless required by applicable law or agreed to in writing, software 13# distributed under the License is distributed on an "AS IS" BASIS, 14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15# See the License for the specific language governing permissions and 16# limitations under the License. 17 18"""Create a curated subset of NotoSansSymbols for Android.""" 19 20__author__ = 'roozbeh@google.com (Roozbeh Pournader)' 21 22import os 23import sys 24 25from nototools import subset 26from nototools import unicode_data 27 28# Unicode blocks that we want to include in the font 29BLOCKS_TO_INCLUDE = """ 3020D0..20FF; Combining Diacritical Marks for Symbols 312100..214F; Letterlike Symbols 322190..21FF; Arrows 332200..22FF; Mathematical Operators 342300..23FF; Miscellaneous Technical 352400..243F; Control Pictures 362440..245F; Optical Character Recognition 372460..24FF; Enclosed Alphanumerics 382500..257F; Box Drawing 392580..259F; Block Elements 4025A0..25FF; Geometric Shapes 412600..26FF; Miscellaneous Symbols 422700..27BF; Dingbats 4327C0..27EF; Miscellaneous Mathematical Symbols-A 4427F0..27FF; Supplemental Arrows-A 452800..28FF; Braille Patterns 462900..297F; Supplemental Arrows-B 472980..29FF; Miscellaneous Mathematical Symbols-B 482A00..2AFF; Supplemental Mathematical Operators 492B00..2BFF; Miscellaneous Symbols and Arrows 504DC0..4DFF; Yijing Hexagram Symbols 5110140..1018F; Ancient Greek Numbers 5210190..101CF; Ancient Symbols 53101D0..101FF; Phaistos Disc 541D000..1D0FF; Byzantine Musical Symbols 551D100..1D1FF; Musical Symbols 561D200..1D24F; Ancient Greek Musical Notation 571D300..1D35F; Tai Xuan Jing Symbols 581D360..1D37F; Counting Rod Numerals 591D400..1D7FF; Mathematical Alphanumeric Symbols 601F000..1F02F; Mahjong Tiles 611F030..1F09F; Domino Tiles 621F0A0..1F0FF; Playing Cards 631F700..1F77F; Alchemical Symbols 64""" 65 66# One-off characters to be included. At the moment, this is the Bitcoin sign 67# (since it's not supported in Roboto yet, and the Japanese TV symbols of 68# Unicode 9. 69ONE_OFF_ADDITIONS = { 70 0x20BF, # ₿ BITCOIN SIGN 71 0x1F19B, # �� SQUARED THREE D 72 0x1F19C, # �� SQUARED SECOND SCREEN 73 0x1F19D, # �� SQUARED TWO K;So;0;L;;;;;N;;;;; 74 0x1F19E, # �� SQUARED FOUR K;So;0;L;;;;;N;;;;; 75 0x1F19F, # �� SQUARED EIGHT K;So;0;L;;;;;N;;;;; 76 0x1F1A0, # �� SQUARED FIVE POINT ONE;So;0;L;;;;;N;;;;; 77 0x1F1A1, # �� SQUARED SEVEN POINT ONE;So;0;L;;;;;N;;;;; 78 0x1F1A2, # �� SQUARED TWENTY-TWO POINT TWO;So;0;L;;;;;N;;;;; 79 0x1F1A3, # �� SQUARED SIXTY P;So;0;L;;;;;N;;;;; 80 0x1F1A4, # �� SQUARED ONE HUNDRED TWENTY P;So;0;L;;;;;N;;;;; 81 0x1F1A5, # �� SQUARED LATIN SMALL LETTER D;So;0;L;;;;;N;;;;; 82 0x1F1A6, # �� SQUARED HC;So;0;L;;;;;N;;;;; 83 0x1F1A7, # �� SQUARED HDR;So;0;L;;;;;N;;;;; 84 0x1F1A8, # �� SQUARED HI-RES;So;0;L;;;;;N;;;;; 85 0x1F1A9, # �� SQUARED LOSSLESS;So;0;L;;;;;N;;;;; 86 0x1F1AA, # �� SQUARED SHV;So;0;L;;;;;N;;;;; 87 0x1F1AB, # �� SQUARED UHD;So;0;L;;;;;N;;;;; 88 0x1F1AC, # �� SQUARED VOD;So;0;L;;;;;N;;;;; 89 0x1F23B, # �� SQUARED CJK UNIFIED IDEOGRAPH-914D 90} 91 92# letter-based characters, provided by Roboto 93LETTERLIKE_CHARS_IN_ROBOTO = { 94 0x2100, # ℀ ACCOUNT OF 95 0x2101, # ℁ ADDRESSED TO THE SUBJECT 96 0x2103, # ℃ DEGREE CELSIUS 97 0x2105, # ℅ CARE OF 98 0x2106, # ℆ CADA UNA 99 0x2109, # ℉ DEGREE FAHRENHEIT 100 0x2113, # ℓ SCRIPT SMALL L 101 0x2116, # № NUMERO SIGN 102 0x2117, # ℗ SOUND RECORDING COPYRIGHT 103 0x211E, # ℞ PRESCRIPTION TAKE 104 0x211F, # ℟ RESPONSE 105 0x2120, # ℠ SERVICE MARK 106 0x2121, # ℡ TELEPHONE SIGN 107 0x2122, # ™ TRADE MARK SIGN 108 0x2123, # ℣ VERSICLE 109 0x2125, # ℥ OUNCE SIGN 110 0x2126, # Ω OHM SIGN 111 0x212A, # K KELVIN SIGN 112 0x212B, # Å ANGSTROM SIGN 113 0x212E, # ℮ ESTIMATED SYMBOL 114 0x2132, # Ⅎ TURNED CAPITAL F 115 0x213B, # ℻ FACSIMILE SIGN 116 0x214D, # ⅍ AKTIESELSKAB 117 0x214F, # ⅏ SYMBOL FOR SAMARITAN SOURCE 118} 119 120DEFAULT_EMOJI = unicode_data.get_presentation_default_emoji() 121 122EMOJI_ADDITIONS_FILE = os.path.join( 123 os.path.dirname(__file__), os.path.pardir, os.path.pardir, 124 'unicode', 'additions', 'emoji-data.txt') 125 126 127# Characters we have decided we are doing as emoji-style in Android, 128# despite UTR#51's recommendation 129def get_android_emoji(): 130 """Return additional Android default emojis.""" 131 android_emoji = set() 132 with open(EMOJI_ADDITIONS_FILE) as emoji_additions: 133 data = unicode_data._parse_semicolon_separated_data( 134 emoji_additions.read()) 135 for codepoint, prop in data: 136 if prop == 'Emoji_Presentation': 137 android_emoji.add(int(codepoint, 16)) 138 return android_emoji 139 140 141def main(argv): 142 """Subset the Noto Symbols font. 143 144 The first argument is the source file name, and the second argument is 145 the target file name. 146 """ 147 148 target_coverage = set() 149 # Add all characters in BLOCKS_TO_INCLUDE 150 for first, last, _ in unicode_data._parse_code_ranges(BLOCKS_TO_INCLUDE): 151 target_coverage.update(range(first, last+1)) 152 153 # Add one-off characters 154 target_coverage |= ONE_OFF_ADDITIONS 155 # Remove characters preferably coming from Roboto 156 target_coverage -= LETTERLIKE_CHARS_IN_ROBOTO 157 # Remove characters that are supposed to default to emoji 158 android_emoji = get_android_emoji() 159 target_coverage -= DEFAULT_EMOJI | android_emoji 160 161 # Remove dentistry symbols, as their main use appears to be for CJK: 162 # http://www.unicode.org/L2/L2000/00098-n2195.pdf 163 target_coverage -= set(range(0x23BE, 0x23CC+1)) 164 165 # Remove COMBINING ENCLOSING KEYCAP. It's needed for Android's color emoji 166 # mechanism to work properly. 167 target_coverage.remove(0x20E3) 168 169 source_file_name = argv[1] 170 target_file_name = argv[2] 171 subset.subset_font( 172 source_file_name, 173 target_file_name, 174 include=target_coverage) 175 176 second_subset_coverage = DEFAULT_EMOJI | android_emoji 177 second_subset_file_name = argv[3] 178 subset.subset_font( 179 source_file_name, 180 second_subset_file_name, 181 include=second_subset_coverage) 182 183 184if __name__ == '__main__': 185 main(sys.argv) 186