-# SpecialCasing-4.0.0.txt
-# Date: 2003-03-14, 20:22:04 GMT [MD]
+# SpecialCasing-11.0.0.txt
+# Date: 2018-02-22, 06:16:47 GMT
+# © 2018 Unicode®, Inc.
+# Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
+# For terms of use, see http://www.unicode.org/terms_of_use.html
#
-# Special Casing Properties
+# Unicode Character Database
+# For documentation, see http://www.unicode.org/reports/tr44/
#
-# This file is a supplement to the UnicodeData file.
-# It contains additional information about the casing of Unicode characters.
-# (For compatibility, the UnicodeData.txt file only contains case mappings for
-# characters where they are 1-1, and does not have locale-specific mappings.)
-# For more information, see the discussion of Case Mappings in the Unicode Standard.
+# Special Casing
+#
+# This file is a supplement to the UnicodeData.txt file. It does not define any
+# properties, but rather provides additional information about the casing of
+# Unicode characters, for situations when casing incurs a change in string length
+# or is dependent on context or locale. For compatibility, the UnicodeData.txt
+# file only contains simple case mappings for characters where they are one-to-one
+# and independent of context and language. The data in this file, combined with
+# the simple case mappings in UnicodeData.txt, defines the full case mappings
+# Lowercase_Mapping (lc), Titlecase_Mapping (tc), and Uppercase_Mapping (uc).
+#
+# Note that the preferred mechanism for defining tailored casing operations is
+# the Unicode Common Locale Data Repository (CLDR). For more information, see the
+# discussion of case mappings and case algorithms in the Unicode Standard.
#
# All code points not listed in this file that do not have a simple case mappings
# in UnicodeData.txt map to themselves.
# ================================================================================
# The entries in this file are in the following machine-readable format:
#
-# <code>; <lower> ; <title> ; <upper> ; (<condition_list> ;)? # <comment>
+# <code>; <lower>; <title>; <upper>; (<condition_list>;)? # <comment>
#
-# <code>, <lower>, <title>, and <upper> provide character values in hex. If there is more than
-# one character, they are separated by spaces. Other than as used to separate elements,
-# spaces are to be ignored.
+# <code>, <lower>, <title>, and <upper> provide the respective full case mappings
+# of <code>, expressed as character values in hex. If there is more than one character,
+# they are separated by spaces. Other than as used to separate elements, spaces are
+# to be ignored.
#
-# The <condition_list> is optional. Where present, it consists of one or more locales or contexts,
-# separated by spaces. In these conditions:
+# The <condition_list> is optional. Where present, it consists of one or more language IDs
+# or casing contexts, separated by spaces. In these conditions:
# - A condition list overrides the normal behavior if all of the listed conditions are true.
-# - The context is always the context of the characters in the original string,
+# - The casing context is always the context of the characters in the original string,
# NOT in the resulting string.
# - Case distinctions in the condition list are not significant.
# - Conditions preceded by "Not_" represent the negation of the condition.
+# The condition list is not represented in the UCD as a formal property.
#
-# A locale is defined as:
-# <locale> := <ISO_639_code> ( "_" <ISO_3166_code> ( "_" <variant> )? )?
-# <ISO_3166_code> := 2-letter ISO country code,
-# <ISO_639_code> := 2-letter ISO language code
+# A language ID is defined by BCP 47, with '-' and '_' treated equivalently.
#
-# A context is one of the following, as defined in the Unicode Standard:
-# Final_Sigma, After_Soft_Dotted, More_Above, Before_Dot, Not_Before_Dot, After_I
+# A casing context for a character is defined by Section 3.13 Default Case Algorithms
+# of The Unicode Standard.
#
# Parsers of this file must be prepared to deal with future additions to this format:
# * Additional contexts
1FE7; 1FE7; 03A5 0308 0342; 03A5 0308 0342; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND PERISPOMENI
1FF6; 1FF6; 03A9 0342; 03A9 0342; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI
-# IMPORTANT-when capitalizing iota-subscript (0345)
-# It MUST be in normalized form--moved to the end of any sequence of combining marks.
-# This is because logically it represents a following base character!
-# E.g. <iota_subscript> (<Mn> | <Mc> | <Me>)+ => (<Mn> | <Mc> | <Me>)+ <iota_subscript>
-# It should never be the first character in a word, so in titlecasing it can be left as is.
+# IMPORTANT-when iota-subscript (0345) is uppercased or titlecased,
+# the result will be incorrect unless the iota-subscript is moved to the end
+# of any sequence of combining marks. Otherwise, the accents will go on the capital iota.
+# This process can be achieved by first transforming the text to NFC before casing.
+# E.g. <alpha><iota_subscript><acute> is uppercased to <ALPHA><acute><IOTA>
-# The following cases are already in the UnicodeData file, so are only commented here.
+# The following cases are already in the UnicodeData.txt file, so are only commented here.
-# 0345; 0345; 0345; 0399; # COMBINING GREEK YPOGEGRAMMENI
+# 0345; 0345; 0399; 0399; # COMBINING GREEK YPOGEGRAMMENI
# All letters with YPOGEGRAMMENI (iota-subscript) or PROSGEGRAMMENI (iota adscript)
# have special uppercases.
1FF3; 1FF3; 1FFC; 03A9 0399; # GREEK SMALL LETTER OMEGA WITH YPOGEGRAMMENI
1FFC; 1FF3; 1FFC; 03A9 0399; # GREEK CAPITAL LETTER OMEGA WITH PROSGEGRAMMENI
-# Some characters with YPOGEGRAMMENI are also have no corresponding titlecases
+# Some characters with YPOGEGRAMMENI also have no corresponding titlecases
1FB2; 1FB2; 1FBA 0345; 1FBA 0399; # GREEK SMALL LETTER ALPHA WITH VARIA AND YPOGEGRAMMENI
1FB4; 1FB4; 0386 0345; 0386 0399; # GREEK SMALL LETTER ALPHA WITH OXIA AND YPOGEGRAMMENI
1FF7; 1FF7; 03A9 0342 0345; 03A9 0342 0399; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI AND YPOGEGRAMMENI
# ================================================================================
-# Conditional mappings
+# Conditional Mappings
+# The remainder of this file provides conditional casing data used to produce
+# full case mappings.
+# ================================================================================
+# Language-Insensitive Mappings
+# These are characters whose full case mappings do not depend on language, but do
+# depend on context (which characters come before or after). For more information
+# see the header of this file and the Unicode Standard.
# ================================================================================
# Special case for final form of sigma
03A3; 03C2; 03A3; 03A3; Final_Sigma; # GREEK CAPITAL LETTER SIGMA
-# Note: the following cases for non-final are already in the UnicodeData file.
+# Note: the following cases for non-final are already in the UnicodeData.txt file.
# 03A3; 03C3; 03A3; 03A3; # GREEK CAPITAL LETTER SIGMA
# 03C3; 03C3; 03A3; 03A3; # GREEK SMALL LETTER SIGMA
# 03C2; 03C3; 03A3; 03A3; Not_Final_Sigma; # GREEK SMALL LETTER FINAL SIGMA
# ================================================================================
-# Locale-sensitive mappings
+# Language-Sensitive Mappings
+# These are characters whose full case mappings depend on language and perhaps also
+# context (which characters come before or after). For more information
+# see the header of this file and the Unicode Standard.
# ================================================================================
# Lithuanian
0069; 0069; 0130; 0130; tr; # LATIN SMALL LETTER I
0069; 0069; 0130; 0130; az; # LATIN SMALL LETTER I
-# Note: the following case is already in the UnicodeData file.
+# Note: the following case is already in the UnicodeData.txt file.
# 0131; 0131; 0049; 0049; tr; # LATIN SMALL LETTER DOTLESS I
+
+# EOF
+
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