SpecialCasing.txt (17049B)
1 # SpecialCasing-17.0.0.txt 2 # Date: 2025-07-31, 22:11:55 GMT 3 # © 2025 Unicode®, Inc. 4 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries. 5 # For terms of use and license, see https://www.unicode.org/terms_of_use.html 6 # 7 # Unicode Character Database 8 # For documentation, see https://www.unicode.org/reports/tr44/ 9 # 10 # Special Casing 11 # 12 # This file is a supplement to the UnicodeData.txt file. The data in this file, combined with 13 # the simple case mappings in UnicodeData.txt, defines the full case mappings 14 # Lowercase_Mapping (lc), Titlecase_Mapping (tc), and Uppercase_Mapping (uc). 15 # For compatibility, the UnicodeData.txt file only contains simple case mappings 16 # for characters where they are one-to-one (and independent of context and language). 17 # 18 # For historical reasons, this file also provides additional information about the casing 19 # of Unicode characters for selected situations when casing is dependent on context or locale. 20 # 21 # Note that the preferred mechanism for defining tailored casing operations is 22 # the Unicode Common Locale Data Repository (CLDR). For more information, see the 23 # discussion of case mappings and case algorithms in the Unicode Standard. 24 # 25 # All code points not listed in this file that do not have simple case mappings 26 # in UnicodeData.txt map to themselves. 27 # ================================================================================ 28 # Format 29 # ================================================================================ 30 # The entries in this file are in the following machine-readable format: 31 # 32 # <code>; <lower>; <title>; <upper>; (<condition_list>;)? # <comment> 33 # 34 # <code>, <lower>, <title>, and <upper> provide the respective full case mappings 35 # of <code>, expressed as character values in hex. If there is more than one character, 36 # they are separated by spaces. Other than as used to separate elements, spaces are 37 # to be ignored. 38 # 39 # The <condition_list> is optional. Where present, it consists of one or more language IDs 40 # or casing contexts, separated by spaces. In these conditions: 41 # - A condition list overrides the normal behavior if all of the listed conditions are true. 42 # - The casing context is always the context of the characters in the original string, 43 # NOT in the resulting string. 44 # - Case distinctions in the condition list are not significant. 45 # - Conditions preceded by "Not_" represent the negation of the condition. 46 # The condition list is not represented in the UCD as a formal property. 47 # 48 # A language ID is defined by BCP 47, with '-' and '_' treated equivalently. 49 # 50 # A casing context for a character is defined in the 51 # "Conformance" / "Default Case Algorithms" section of the core specification. 52 # 53 # Parsers of this file must be prepared to deal with future additions to this format: 54 # * Additional contexts 55 # * Additional fields 56 # ================================================================================ 57 58 # ================================================================================ 59 # Unconditional mappings 60 # The mappings in this section are not language-sensitive nor context-sensitive. 61 # 62 # Note that comments provide additional information but 63 # do not modify the case mapping algorithms in the core specification, chapter 3. 64 # ================================================================================ 65 66 # The German es-zed is special--the normal mapping is to SS. 67 # Note: the titlecase should never occur in practice. It is equal to titlecase(uppercase(<es-zed>)) 68 69 00DF; 00DF; 0053 0073; 0053 0053; # LATIN SMALL LETTER SHARP S 70 71 # Preserve canonical equivalence for I with dot. Turkic is handled below. 72 73 0130; 0069 0307; 0130; 0130; # LATIN CAPITAL LETTER I WITH DOT ABOVE 74 75 # Ligatures 76 77 FB00; FB00; 0046 0066; 0046 0046; # LATIN SMALL LIGATURE FF 78 FB01; FB01; 0046 0069; 0046 0049; # LATIN SMALL LIGATURE FI 79 FB02; FB02; 0046 006C; 0046 004C; # LATIN SMALL LIGATURE FL 80 FB03; FB03; 0046 0066 0069; 0046 0046 0049; # LATIN SMALL LIGATURE FFI 81 FB04; FB04; 0046 0066 006C; 0046 0046 004C; # LATIN SMALL LIGATURE FFL 82 FB05; FB05; 0053 0074; 0053 0054; # LATIN SMALL LIGATURE LONG S T 83 FB06; FB06; 0053 0074; 0053 0054; # LATIN SMALL LIGATURE ST 84 85 0587; 0587; 0535 0582; 0535 0552; # ARMENIAN SMALL LIGATURE ECH YIWN 86 FB13; FB13; 0544 0576; 0544 0546; # ARMENIAN SMALL LIGATURE MEN NOW 87 FB14; FB14; 0544 0565; 0544 0535; # ARMENIAN SMALL LIGATURE MEN ECH 88 FB15; FB15; 0544 056B; 0544 053B; # ARMENIAN SMALL LIGATURE MEN INI 89 FB16; FB16; 054E 0576; 054E 0546; # ARMENIAN SMALL LIGATURE VEW NOW 90 FB17; FB17; 0544 056D; 0544 053D; # ARMENIAN SMALL LIGATURE MEN XEH 91 92 # No corresponding uppercase precomposed character 93 94 0149; 0149; 02BC 004E; 02BC 004E; # LATIN SMALL LETTER N PRECEDED BY APOSTROPHE 95 0390; 0390; 0399 0308 0301; 0399 0308 0301; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS 96 03B0; 03B0; 03A5 0308 0301; 03A5 0308 0301; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS 97 01F0; 01F0; 004A 030C; 004A 030C; # LATIN SMALL LETTER J WITH CARON 98 1E96; 1E96; 0048 0331; 0048 0331; # LATIN SMALL LETTER H WITH LINE BELOW 99 1E97; 1E97; 0054 0308; 0054 0308; # LATIN SMALL LETTER T WITH DIAERESIS 100 1E98; 1E98; 0057 030A; 0057 030A; # LATIN SMALL LETTER W WITH RING ABOVE 101 1E99; 1E99; 0059 030A; 0059 030A; # LATIN SMALL LETTER Y WITH RING ABOVE 102 1E9A; 1E9A; 0041 02BE; 0041 02BE; # LATIN SMALL LETTER A WITH RIGHT HALF RING 103 1F50; 1F50; 03A5 0313; 03A5 0313; # GREEK SMALL LETTER UPSILON WITH PSILI 104 1F52; 1F52; 03A5 0313 0300; 03A5 0313 0300; # GREEK SMALL LETTER UPSILON WITH PSILI AND VARIA 105 1F54; 1F54; 03A5 0313 0301; 03A5 0313 0301; # GREEK SMALL LETTER UPSILON WITH PSILI AND OXIA 106 1F56; 1F56; 03A5 0313 0342; 03A5 0313 0342; # GREEK SMALL LETTER UPSILON WITH PSILI AND PERISPOMENI 107 1FB6; 1FB6; 0391 0342; 0391 0342; # GREEK SMALL LETTER ALPHA WITH PERISPOMENI 108 1FC6; 1FC6; 0397 0342; 0397 0342; # GREEK SMALL LETTER ETA WITH PERISPOMENI 109 1FD2; 1FD2; 0399 0308 0300; 0399 0308 0300; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND VARIA 110 1FD3; 1FD3; 0399 0308 0301; 0399 0308 0301; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND OXIA 111 1FD6; 1FD6; 0399 0342; 0399 0342; # GREEK SMALL LETTER IOTA WITH PERISPOMENI 112 1FD7; 1FD7; 0399 0308 0342; 0399 0308 0342; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND PERISPOMENI 113 1FE2; 1FE2; 03A5 0308 0300; 03A5 0308 0300; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND VARIA 114 1FE3; 1FE3; 03A5 0308 0301; 03A5 0308 0301; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND OXIA 115 1FE4; 1FE4; 03A1 0313; 03A1 0313; # GREEK SMALL LETTER RHO WITH PSILI 116 1FE6; 1FE6; 03A5 0342; 03A5 0342; # GREEK SMALL LETTER UPSILON WITH PERISPOMENI 117 1FE7; 1FE7; 03A5 0308 0342; 03A5 0308 0342; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND PERISPOMENI 118 1FF6; 1FF6; 03A9 0342; 03A9 0342; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI 119 120 # IMPORTANT-when iota-subscript (0345) is uppercased or titlecased, 121 # the result will be incorrect unless the iota-subscript is moved to the end 122 # of any sequence of combining marks. Otherwise, the accents will go on the capital iota. 123 # This process can be achieved by first transforming the text to NFC before casing. 124 # E.g. <alpha><iota_subscript><acute> is uppercased to <ALPHA><acute><IOTA> 125 126 # The following cases are already in the UnicodeData.txt file, so are only commented here. 127 128 # 0345; 0345; 0399; 0399; # COMBINING GREEK YPOGEGRAMMENI 129 130 # All letters with YPOGEGRAMMENI (iota-subscript) or PROSGEGRAMMENI (iota adscript) 131 # have special uppercases. 132 # Note: characters with PROSGEGRAMMENI are actually titlecase, not uppercase! 133 134 1F80; 1F80; 1F88; 1F08 0399; # GREEK SMALL LETTER ALPHA WITH PSILI AND YPOGEGRAMMENI 135 1F81; 1F81; 1F89; 1F09 0399; # GREEK SMALL LETTER ALPHA WITH DASIA AND YPOGEGRAMMENI 136 1F82; 1F82; 1F8A; 1F0A 0399; # GREEK SMALL LETTER ALPHA WITH PSILI AND VARIA AND YPOGEGRAMMENI 137 1F83; 1F83; 1F8B; 1F0B 0399; # GREEK SMALL LETTER ALPHA WITH DASIA AND VARIA AND YPOGEGRAMMENI 138 1F84; 1F84; 1F8C; 1F0C 0399; # GREEK SMALL LETTER ALPHA WITH PSILI AND OXIA AND YPOGEGRAMMENI 139 1F85; 1F85; 1F8D; 1F0D 0399; # GREEK SMALL LETTER ALPHA WITH DASIA AND OXIA AND YPOGEGRAMMENI 140 1F86; 1F86; 1F8E; 1F0E 0399; # GREEK SMALL LETTER ALPHA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI 141 1F87; 1F87; 1F8F; 1F0F 0399; # GREEK SMALL LETTER ALPHA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI 142 1F88; 1F80; 1F88; 1F08 0399; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PROSGEGRAMMENI 143 1F89; 1F81; 1F89; 1F09 0399; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PROSGEGRAMMENI 144 1F8A; 1F82; 1F8A; 1F0A 0399; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA AND PROSGEGRAMMENI 145 1F8B; 1F83; 1F8B; 1F0B 0399; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA AND PROSGEGRAMMENI 146 1F8C; 1F84; 1F8C; 1F0C 0399; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA AND PROSGEGRAMMENI 147 1F8D; 1F85; 1F8D; 1F0D 0399; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA AND PROSGEGRAMMENI 148 1F8E; 1F86; 1F8E; 1F0E 0399; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI 149 1F8F; 1F87; 1F8F; 1F0F 0399; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI 150 1F90; 1F90; 1F98; 1F28 0399; # GREEK SMALL LETTER ETA WITH PSILI AND YPOGEGRAMMENI 151 1F91; 1F91; 1F99; 1F29 0399; # GREEK SMALL LETTER ETA WITH DASIA AND YPOGEGRAMMENI 152 1F92; 1F92; 1F9A; 1F2A 0399; # GREEK SMALL LETTER ETA WITH PSILI AND VARIA AND YPOGEGRAMMENI 153 1F93; 1F93; 1F9B; 1F2B 0399; # GREEK SMALL LETTER ETA WITH DASIA AND VARIA AND YPOGEGRAMMENI 154 1F94; 1F94; 1F9C; 1F2C 0399; # GREEK SMALL LETTER ETA WITH PSILI AND OXIA AND YPOGEGRAMMENI 155 1F95; 1F95; 1F9D; 1F2D 0399; # GREEK SMALL LETTER ETA WITH DASIA AND OXIA AND YPOGEGRAMMENI 156 1F96; 1F96; 1F9E; 1F2E 0399; # GREEK SMALL LETTER ETA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI 157 1F97; 1F97; 1F9F; 1F2F 0399; # GREEK SMALL LETTER ETA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI 158 1F98; 1F90; 1F98; 1F28 0399; # GREEK CAPITAL LETTER ETA WITH PSILI AND PROSGEGRAMMENI 159 1F99; 1F91; 1F99; 1F29 0399; # GREEK CAPITAL LETTER ETA WITH DASIA AND PROSGEGRAMMENI 160 1F9A; 1F92; 1F9A; 1F2A 0399; # GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA AND PROSGEGRAMMENI 161 1F9B; 1F93; 1F9B; 1F2B 0399; # GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA AND PROSGEGRAMMENI 162 1F9C; 1F94; 1F9C; 1F2C 0399; # GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA AND PROSGEGRAMMENI 163 1F9D; 1F95; 1F9D; 1F2D 0399; # GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA AND PROSGEGRAMMENI 164 1F9E; 1F96; 1F9E; 1F2E 0399; # GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI 165 1F9F; 1F97; 1F9F; 1F2F 0399; # GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI 166 1FA0; 1FA0; 1FA8; 1F68 0399; # GREEK SMALL LETTER OMEGA WITH PSILI AND YPOGEGRAMMENI 167 1FA1; 1FA1; 1FA9; 1F69 0399; # GREEK SMALL LETTER OMEGA WITH DASIA AND YPOGEGRAMMENI 168 1FA2; 1FA2; 1FAA; 1F6A 0399; # GREEK SMALL LETTER OMEGA WITH PSILI AND VARIA AND YPOGEGRAMMENI 169 1FA3; 1FA3; 1FAB; 1F6B 0399; # GREEK SMALL LETTER OMEGA WITH DASIA AND VARIA AND YPOGEGRAMMENI 170 1FA4; 1FA4; 1FAC; 1F6C 0399; # GREEK SMALL LETTER OMEGA WITH PSILI AND OXIA AND YPOGEGRAMMENI 171 1FA5; 1FA5; 1FAD; 1F6D 0399; # GREEK SMALL LETTER OMEGA WITH DASIA AND OXIA AND YPOGEGRAMMENI 172 1FA6; 1FA6; 1FAE; 1F6E 0399; # GREEK SMALL LETTER OMEGA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI 173 1FA7; 1FA7; 1FAF; 1F6F 0399; # GREEK SMALL LETTER OMEGA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI 174 1FA8; 1FA0; 1FA8; 1F68 0399; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PROSGEGRAMMENI 175 1FA9; 1FA1; 1FA9; 1F69 0399; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PROSGEGRAMMENI 176 1FAA; 1FA2; 1FAA; 1F6A 0399; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA AND PROSGEGRAMMENI 177 1FAB; 1FA3; 1FAB; 1F6B 0399; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA AND PROSGEGRAMMENI 178 1FAC; 1FA4; 1FAC; 1F6C 0399; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA AND PROSGEGRAMMENI 179 1FAD; 1FA5; 1FAD; 1F6D 0399; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA AND PROSGEGRAMMENI 180 1FAE; 1FA6; 1FAE; 1F6E 0399; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI 181 1FAF; 1FA7; 1FAF; 1F6F 0399; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI 182 1FB3; 1FB3; 1FBC; 0391 0399; # GREEK SMALL LETTER ALPHA WITH YPOGEGRAMMENI 183 1FBC; 1FB3; 1FBC; 0391 0399; # GREEK CAPITAL LETTER ALPHA WITH PROSGEGRAMMENI 184 1FC3; 1FC3; 1FCC; 0397 0399; # GREEK SMALL LETTER ETA WITH YPOGEGRAMMENI 185 1FCC; 1FC3; 1FCC; 0397 0399; # GREEK CAPITAL LETTER ETA WITH PROSGEGRAMMENI 186 1FF3; 1FF3; 1FFC; 03A9 0399; # GREEK SMALL LETTER OMEGA WITH YPOGEGRAMMENI 187 1FFC; 1FF3; 1FFC; 03A9 0399; # GREEK CAPITAL LETTER OMEGA WITH PROSGEGRAMMENI 188 189 # Some characters with YPOGEGRAMMENI also have no corresponding titlecases 190 191 1FB2; 1FB2; 1FBA 0345; 1FBA 0399; # GREEK SMALL LETTER ALPHA WITH VARIA AND YPOGEGRAMMENI 192 1FB4; 1FB4; 0386 0345; 0386 0399; # GREEK SMALL LETTER ALPHA WITH OXIA AND YPOGEGRAMMENI 193 1FC2; 1FC2; 1FCA 0345; 1FCA 0399; # GREEK SMALL LETTER ETA WITH VARIA AND YPOGEGRAMMENI 194 1FC4; 1FC4; 0389 0345; 0389 0399; # GREEK SMALL LETTER ETA WITH OXIA AND YPOGEGRAMMENI 195 1FF2; 1FF2; 1FFA 0345; 1FFA 0399; # GREEK SMALL LETTER OMEGA WITH VARIA AND YPOGEGRAMMENI 196 1FF4; 1FF4; 038F 0345; 038F 0399; # GREEK SMALL LETTER OMEGA WITH OXIA AND YPOGEGRAMMENI 197 198 1FB7; 1FB7; 0391 0342 0345; 0391 0342 0399; # GREEK SMALL LETTER ALPHA WITH PERISPOMENI AND YPOGEGRAMMENI 199 1FC7; 1FC7; 0397 0342 0345; 0397 0342 0399; # GREEK SMALL LETTER ETA WITH PERISPOMENI AND YPOGEGRAMMENI 200 1FF7; 1FF7; 03A9 0342 0345; 03A9 0342 0399; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI AND YPOGEGRAMMENI 201 202 # ================================================================================ 203 # Conditional Mappings 204 # The remainder of this file provides conditional casing data used to produce 205 # full case mappings. 206 # ================================================================================ 207 # Language-Insensitive Mappings 208 # These are characters whose full case mappings do not depend on language, but do 209 # depend on context (which characters come before or after). For more information 210 # see the header of this file and the Unicode Standard. 211 # ================================================================================ 212 213 # Special case for final form of sigma 214 215 03A3; 03C2; 03A3; 03A3; Final_Sigma; # GREEK CAPITAL LETTER SIGMA 216 217 # Note: the following cases for non-final are already in the UnicodeData.txt file. 218 219 # 03A3; 03C3; 03A3; 03A3; # GREEK CAPITAL LETTER SIGMA 220 # 03C3; 03C3; 03A3; 03A3; # GREEK SMALL LETTER SIGMA 221 # 03C2; 03C2; 03A3; 03A3; # GREEK SMALL LETTER FINAL SIGMA 222 223 # Note: the following cases are not included, since they would case-fold in lowercasing 224 225 # 03C3; 03C2; 03A3; 03A3; Final_Sigma; # GREEK SMALL LETTER SIGMA 226 # 03C2; 03C3; 03A3; 03A3; Not_Final_Sigma; # GREEK SMALL LETTER FINAL SIGMA 227 228 # ================================================================================ 229 # Language-Sensitive Mappings 230 # These are characters whose full case mappings depend on language and perhaps also 231 # context (which characters come before or after). For more information 232 # see the header of this file and the Unicode Standard. 233 # ================================================================================ 234 235 # Lithuanian 236 237 # Lithuanian retains the dot in a lowercase i when followed by accents. 238 239 # Remove DOT ABOVE after "i" with upper or titlecase 240 241 0307; 0307; ; ; lt After_Soft_Dotted; # COMBINING DOT ABOVE 242 243 # Introduce an explicit dot above when lowercasing capital I's and J's 244 # whenever there are more accents above. 245 # (of the accents used in Lithuanian: grave, acute, tilde above, and ogonek) 246 247 0049; 0069 0307; 0049; 0049; lt More_Above; # LATIN CAPITAL LETTER I 248 004A; 006A 0307; 004A; 004A; lt More_Above; # LATIN CAPITAL LETTER J 249 012E; 012F 0307; 012E; 012E; lt More_Above; # LATIN CAPITAL LETTER I WITH OGONEK 250 00CC; 0069 0307 0300; 00CC; 00CC; lt; # LATIN CAPITAL LETTER I WITH GRAVE 251 00CD; 0069 0307 0301; 00CD; 00CD; lt; # LATIN CAPITAL LETTER I WITH ACUTE 252 0128; 0069 0307 0303; 0128; 0128; lt; # LATIN CAPITAL LETTER I WITH TILDE 253 254 # ================================================================================ 255 256 # Turkish and Azeri 257 258 # I and i-dotless; I-dot and i are case pairs in Turkish and Azeri 259 # The following rules handle those cases. 260 261 0130; 0069; 0130; 0130; tr; # LATIN CAPITAL LETTER I WITH DOT ABOVE 262 0130; 0069; 0130; 0130; az; # LATIN CAPITAL LETTER I WITH DOT ABOVE 263 264 # When lowercasing, remove dot_above in the sequence I + dot_above, which will turn into i. 265 # This matches the behavior of the canonically equivalent I-dot_above 266 267 0307; ; 0307; 0307; tr After_I; # COMBINING DOT ABOVE 268 0307; ; 0307; 0307; az After_I; # COMBINING DOT ABOVE 269 270 # When lowercasing, unless an I is before a dot_above, it turns into a dotless i. 271 272 0049; 0131; 0049; 0049; tr Not_Before_Dot; # LATIN CAPITAL LETTER I 273 0049; 0131; 0049; 0049; az Not_Before_Dot; # LATIN CAPITAL LETTER I 274 275 # When uppercasing, i turns into a dotted capital I 276 277 0069; 0069; 0130; 0130; tr; # LATIN SMALL LETTER I 278 0069; 0069; 0130; 0130; az; # LATIN SMALL LETTER I 279 280 # Note: the following case is already in the UnicodeData.txt file. 281 282 # 0131; 0131; 0049; 0049; tr; # LATIN SMALL LETTER DOTLESS I 283 284 # EOF 285