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|SWI-Prolog Unicode library
This library is a wrapper around the utf8proc library, providing information about Unicode code-points and performing operations (mappings) on Unicode atoms. The central predicate is unicode_map/3, mapping a Unicode atom to another Unicode atom using a sequence of operations. The predicates unicode_nfd/2, unicode_nfc/2, unicode_nfkd/2 and unicode_nfkc/2 implement the four standard Unicode normalization forms.
U+0020 <-- all space characters (general category Zs) U+0027 ' <-- left/right single quotation mark U+2018..2019, modifier letter apostrophe U+02BC, modifier letter vertical line U+02C8 U+002D - <-- all dash characters (general category Pd), minus U+2212 U+002F / <-- fraction slash U+2044, division slash U+2215 U+003A : <-- ratio U+2236 U+003C < <-- single left-pointing angle quotation mark U+2039, left-pointing angle bracket U+2329, left angle bracket U+3008 U+003E > <-- single right-pointing angle quotation mark U+203A, right-pointing angle bracket U+232A, right angle bracket U+3009 U+005C \ <-- set minus U+2216 U+005E ^ <-- modifier letter up arrowhead U+02C4, modifier letter circumflex accent U+02C6, caret U+2038, up arrowhead U+2303 U+005F _ <-- all connector characters (general category Pc), modifier letter low macron U+02CD U+0060 ` <-- modifier letter grave accent U+02CB U+007C | <-- divides U+2223 U+007E ~ <-- tilde operator U+223C
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Permission is hereby granted, free of charge, to any person obtaining a copy of the Unicode data files and any associated documentation (the "Data Files") or Unicode software and any associated documentation (the "Software") to deal in the Data Files or Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Data Files or Software, and to permit persons to whom the Data Files or Software are furnished to do so, provided that (a) the above copyright notice(s) and this permission notice appear with all copies of the Data Files or Software, (b) both the above copyright notice(s) and this permission notice appear in associated documentation, and (c) there is clear notice in each modified Data File or in the Software as well as in the documentation associated with the Data File(s) or Software that the data or software has been modified.
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