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 (at] google.com (Roozbeh Pournader)' 21 22 import sys 23 24 from nototools import subset 25 from nototools import unicode_data 26 27 # Unicode blocks that we want to include in the font 28 BLOCKS_TO_INCLUDE = """ 29 20D0..20FF; Combining Diacritical Marks for Symbols 30 2100..214F; Letterlike Symbols 31 2190..21FF; Arrows 32 2200..22FF; Mathematical Operators 33 2300..23FF; Miscellaneous Technical 34 2400..243F; Control Pictures 35 2440..245F; Optical Character Recognition 36 2460..24FF; Enclosed Alphanumerics 37 2500..257F; Box Drawing 38 2580..259F; Block Elements 39 25A0..25FF; Geometric Shapes 40 2600..26FF; Miscellaneous Symbols 41 2700..27BF; Dingbats 42 27C0..27EF; Miscellaneous Mathematical Symbols-A 43 27F0..27FF; Supplemental Arrows-A 44 2800..28FF; Braille Patterns 45 2A00..2AFF; Supplemental Mathematical Operators 46 """ 47 48 # One-off characters to be included, needed for backward compatibility and 49 # supporting various character sets, including ARIB sets and black and white 50 # emoji 51 ONE_OFF_ADDITIONS = { 52 0x27D0, # WHITE DIAMOND WITH CENTRED DOT 53 0x2934, # ARROW POINTING RIGHTWARDS THEN CURVING UPWARDS 54 0x2935, # ARROW POINTING RIGHTWARDS THEN CURVING DOWNWARDS 55 0x2985, # LEFT WHITE PARENTHESIS 56 0x2986, # RIGHT WHITE PARENTHESIS 57 0x2B05, # LEFTWARDS BLACK ARROW 58 0x2B06, # UPWARDS BLACK ARROW 59 0x2B07, # DOWNWARDS BLACK ARROW 60 0x2B24, # BLACK LARGE CIRCLE 61 0x2B2E, # BLACK VERTICAL ELLIPSE 62 0x2B2F, # WHITE VERTICAL ELLIPSE 63 0x2B56, # HEAVY OVAL WITH OVAL INSIDE 64 0x2B57, # HEAVY CIRCLE WITH CIRCLE INSIDE 65 0x2B58, # HEAVY CIRCLE 66 0x2B59, # HEAVY CIRCLED SALTIRE 67 } 68 69 # letter-based characters, provided by Roboto 70 LETTERLIKE_CHARS_IN_ROBOTO = { 71 0x2100, # ACCOUNT OF 72 0x2101, # ADDRESSED TO THE SUBJECT 73 0x2103, # DEGREE CELSIUS 74 0x2105, # CARE OF 75 0x2106, # CADA UNA 76 0x2109, # DEGREE FAHRENHEIT 77 0x2113, # SCRIPT SMALL L 78 0x2116, # NUMERO SIGN 79 0x2117, # SOUND RECORDING COPYRIGHT 80 0x211E, # PRESCRIPTION TAKE 81 0x211F, # RESPONSE 82 0x2120, # SERVICE MARK 83 0x2121, # TELEPHONE SIGN 84 0x2122, # TRADE MARK SIGN 85 0x2123, # VERSICLE 86 0x2125, # OUNCE SIGN 87 0x2126, # OHM SIGN 88 0x212A, # KELVIN SIGN 89 0x212B, # ANGSTROM SIGN 90 0x212E, # ESTIMATED SYMBOL 91 0x2132, # TURNED CAPITAL F 92 0x213B, # FACSIMILE SIGN 93 0x214D, # AKTIESELSKAB 94 0x214F, # SYMBOL FOR SAMARITAN SOURCE 95 } 96 97 # default emoji characters in the BMP, based on 98 # http://www.unicode.org/draft/Public/emoji/1.0/emoji-data.txt 99 # We exclude these, so we don't block color emoji. 100 BMP_DEFAULT_EMOJI = { 101 0x231A, # WATCH 102 0x231B, # HOURGLASS 103 0x23E9, # BLACK RIGHT-POINTING DOUBLE TRIANGLE 104 0x23EA, # BLACK LEFT-POINTING DOUBLE TRIANGLE 105 0x23EB, # BLACK UP-POINTING DOUBLE TRIANGLE 106 0x23EC, # BLACK DOWN-POINTING DOUBLE TRIANGLE 107 0x23F0, # ALARM CLOCK 108 0x23F3, # HOURGLASS WITH FLOWING SAND 109 0x25FD, # WHITE MEDIUM SMALL SQUARE 110 0x25FE, # BLACK MEDIUM SMALL SQUARE 111 0x2614, # UMBRELLA WITH RAIN DROPS 112 0x2615, # HOT BEVERAGE 113 0x2648, # ARIES 114 0x2649, # TAURUS 115 0x264A, # GEMINI 116 0x264B, # CANCER 117 0x264C, # LEO 118 0x264D, # VIRGO 119 0x264E, # LIBRA 120 0x264F, # SCORPIUS 121 0x2650, # SAGITTARIUS 122 0x2651, # CAPRICORN 123 0x2652, # AQUARIUS 124 0x2653, # PISCES 125 0x267F, # WHEELCHAIR SYMBOL 126 0x2693, # ANCHOR 127 0x26A1, # HIGH VOLTAGE SIGN 128 0x26AA, # MEDIUM WHITE CIRCLE 129 0x26AB, # MEDIUM BLACK CIRCLE 130 0x26BD, # SOCCER BALL 131 0x26BE, # BASEBALL 132 0x26C4, # SNOWMAN WITHOUT SNOW 133 0x26C5, # SUN BEHIND CLOUD 134 0x26CE, # OPHIUCHUS 135 0x26D4, # NO ENTRY 136 0x26EA, # CHURCH 137 0x26F2, # FOUNTAIN 138 0x26F3, # FLAG IN HOLE 139 0x26F5, # SAILBOAT 140 0x26FA, # TENT 141 0x26FD, # FUEL PUMP 142 0x2705, # WHITE HEAVY CHECK MARK 143 0x270A, # RAISED FIST 144 0x270B, # RAISED HAND 145 0x2728, # SPARKLES 146 0x274C, # CROSS MARK 147 0x274E, # NEGATIVE SQUARED CROSS MARK 148 0x2753, # BLACK QUESTION MARK ORNAMENT 149 0x2754, # WHITE QUESTION MARK ORNAMENT 150 0x2755, # WHITE EXCLAMATION MARK ORNAMENT 151 0x2757, # HEAVY EXCLAMATION MARK SYMBOL 152 0x2795, # HEAVY PLUS SIGN 153 0x2796, # HEAVY MINUS SIGN 154 0x2797, # HEAVY DIVISION SIGN 155 0x27B0, # CURLY LOOP 156 0x27BF, # DOUBLE CURLY LOOP 157 0x2B1B, # BLACK LARGE SQUARE 158 0x2B1C, # WHITE LARGE SQUARE 159 0x2B50, # WHITE MEDIUM STAR 160 0x2B55, # HEAVY LARGE CIRCLE 161 } 162 163 # Characters we have decided we are doing as emoji-style in Android, 164 # despite UTR#51's recommendation 165 ANDROID_EMOJI = { 166 0x2600, # BLACK SUN WITH RAYS 167 0x2601, # CLOUD 168 0X260E, # BLACK TELEPHONE 169 0x261D, # WHITE UP POINTING INDEX 170 0x263A, # WHITE SMILING FACE 171 0x2660, # BLACK SPADE SUIT 172 0x2663, # BLACK CLUB SUIT 173 0x2665, # BLACK HEART SUIT 174 0x2666, # BLACK DIAMOND SUIT 175 0x270C, # VICTORY HAND 176 0x2744, # SNOWFLAKE 177 0x2764, # HEAVY BLACK HEART 178 } 179 180 def main(argv): 181 """Subset the Noto Symbols font. 182 183 The first argument is the source file name, and the second argument is 184 the target file name. 185 """ 186 187 target_coverage = set() 188 # Add all characters in BLOCKS_TO_INCLUDE 189 for first, last, _ in unicode_data._parse_code_ranges(BLOCKS_TO_INCLUDE): 190 target_coverage.update(range(first, last+1)) 191 192 # Add one-off characters 193 target_coverage |= ONE_OFF_ADDITIONS 194 # Remove characters preferably coming from Roboto 195 target_coverage -= LETTERLIKE_CHARS_IN_ROBOTO 196 # Remove characters that are supposed to default to emoji 197 target_coverage -= BMP_DEFAULT_EMOJI | ANDROID_EMOJI 198 199 # Remove dentistry symbols, as their main use appears to be for CJK: 200 # http://www.unicode.org/L2/L2000/00098-n2195.pdf 201 target_coverage -= set(range(0x23BE, 0x23CC+1)) 202 203 # Remove COMBINING ENCLOSING KEYCAP. It's needed for Android's color emoji 204 # mechanism to work properly 205 target_coverage.remove(0x20E3) 206 207 source_file_name = argv[1] 208 target_file_name = argv[2] 209 subset.subset_font( 210 source_file_name, 211 target_file_name, 212 include=target_coverage) 213 214 215 if __name__ == '__main__': 216 main(sys.argv) 217
