The Unicode Consortium provide a range of data files detailing the nature of code points in Unicode. These data files are machine-readable but large. Here, a set of loaders are provided to parse these files during a TeX run and set appropriate parameters in an automated fashion. File: `load-unicode-data.tex` ============================= The loader parses a number of data files provided by the Unicode Consortium and when used with used Unicode-capable engine sets up a range of TeX-related parameters based on the extracted information. From the file `UnicodeData.txt` the following properties are set: - `\catcode` 11 for all letters (Unicode class "L") - `\catcode` 11 for all combining marks (Unicode class "M") - `\sfcode` 999 for all code points of class "Lu" (upper case letters) - `\lccode` for all of class "Ll" (lower case letters) to the code point itself, and `\uccode` to the upper case mapping (or if not given to the code point itself) - `\uccode` for all of class "Lu" (upper case letters) to the code point itself, and `\lccode` to the lower case mapping (or if not given to the code point itself) - `\lccode` and `\uccode` for all of class "Lt" (title case letters) to the lower and upper case mappings (or if not given to the code point itself) - `\lccode` and `\uccode` for all other letter code points are set to the code point itself - `\lccode` and/or `\uccode` for non-letter code points for which an upper or lower case mapping is given - `\sfcode` 0 (ignored) for code points of Unicode classes "Pe" (closing punctuation marks) and "Pf" (final quotation marks) - `\Umathcode` for all letters (Unicode class "L") and combining marks (Unicode class "M") as TeX class 7 (var) In the above, 'letters' refers to code points with Unicode class "L", irrespective of their TeX category code. File: `load-unicode-math-classes.tex` ====================================== From the file `MathClass-15.txt` the following mapping between Unicode math classes and TeX math types are set up - "L" (large) `\mathop` - "B" (binary) `\mathbin` - "V" (vary) `\mathbin` - "R" (relation) `\mathrel` - "O" (opening) `\mathopen` - "C" (closing) `\mathclose` - "P" (punctuation) `\mathpunct` - "A" (alphabetic) `\mathalpha` For each code point processed, the result is of the form \Umathcode = 1 File: `load-unicode-xetex-classes.tex` ====================================== From the files `EastAsianWidth.txt` and `LineBreak.txt` inter character classes for XeTeX (`\XeTeXcharclass`) are set for the following classes - "ID" (ideographic) - "CJ" (conditional Japanese starter) - "OP" (opener) - "CL" (closer) - "NS" (non-starter) - "EX" (exclamation) - "IS" (infix separator) - "CM" (combining marks) All code points of classes "ID" and "CJ" are assigned to a `\XeTeXcharclass`, but for other classes this only occurs when they fall into east Asian width type "F", "H" or "W" (full-, half- and wide-width). The following mappings between Unicode and XeTeX classes occur - "ID" and "CJ" are class 1 - "OP" is class 2 - "CL", "NS", "EX", "IS" are class 3 - "CM" is class 256 (ignored) as standard: these may be over-ridden by defining `\XeTeXcharclass` as required. (If classes "ID" or "CL" are explicitly set, the other members of the same groups above will inherit these values.) This file does _not_ activate XeTeX's inter-character token mechanism (`\XeTeXinterchartokenstate` is not set) nor does it install any material in the inter-character token registers. Note that this file is separate from the main loader as the data structure here may need more refinement at the macro level. Data files ========== The following data files are included here with permission of the Unicode Consortium (see below): - `UnicodeData.txt` - `BidiBrackets.txt` - `BidiMirroring.txt` - `BidiMirroring-5-1-0.txt` - `CaseFolding.txt` - `EastAsianWidth.txt` - `emoji-data.txt` - `GraphemeBreakProperty.txt` - `LineBreak.txt` - `MathClass.txt` - `PropList.txt` - `SpecialCasing.txt` - `Scripts.txt` - `ScriptExtension.txt` - `WordBreakProperty.txt` With the exception of `MathClass.txt`, which is currently not formally part of the Unicode Character Database, and `BidiMirroring-5-1-0.txt`, which is a data file for Unicode 5.1.0, all of the data files here are for Unicode 15.1.0. `BidiMirroring-5-1-0.txt` will never be updated and is included for OpenType font support: While `BidiMirroring.txt` lists all mirror pairs in the current Unicode version, only the pairs from Unicode 5.1.0 are handled directly by the OpenType rendering system. All newer pairs have to be handled through font features. Requests to include additional Unicode data files in this bundle are welcome. Ideally this bundle will act as a single location for all Unicode data for use by TeX systems. Issues and improvements ======================= The home page for this bundle is https://github.com/latex3/unicode-data, and issues may be reported there. Changes ======= - v1.0 (2015-12-01) - First public release - v1.1 (2016-01-04) - Allow setting of XeTeX character class slot numbers - v1.1a (2016-01-06) - Correctly assign XeTeX character class for code points in ranges - Fix issue which meant `EastAsianWidth.txt` was not read - v1.1b (2016-01-08) - Avoid save stack issue when loading `EastAsianWidth.txt` - Fix application of settings to ranges of Unicode characters - Correct setting of space factor for ending punctuation - v1.2 (2016-02-02) - Drop use of Unicode math data at present: undesired effect on output if Unicode fonts are not loaded (classical OT1 situation) - v1.2a (2016-02-05) - Correct split between base and supplementary plane when setting math codes - v1.3 (2016-02-06) - New `load-unicode-math-classes.tex` loader - Set all letters as math type 7 (var) in `load-unicode-data.tex` - v1.3a (2016-02-06) - Add definition of `\loop` to `load-unicode-math-classes.tex` - v1.4 (2016-02-16) - Treat "CJ" chars like "ID" chars for setting XeTeX character class - v1.4a (2016-02-21) - Inherit XeTeX classes for "CJ" from "ID" and for "NS", "EX" and "IS" from "CL" if appropriate - v1.5 (2016-06-22) - Update data files to Unicode release 9.0.0 - v1.6 (2017-06-27) - Update data files to Unicode release 10.0.0 - v1.7 (2018-08-09) - Update data files to Unicode release 11.0.0 - v1.8 (2019-03-09) - Update data files to Unicode release 12.0.0 - v1.9 (2019-08-13) - Update data files to Unicode release 12.1.0 - Add `BidiBrackets.txt`, `Scripts.txt` and `ScriptExtension.txt` - v1.10 (2019-08-21) - Add `PropList.txt` - v1.11 (2019-11-28) - Add `BidiMirroring.txt` and `BidiMirroring-5-1-0.txt` - v1.12 (2020-03-11) - Update data files to Unicode release 13.0.0 - v1.13 (2020-04-15) - Add `emoji-data.txt` and `GraphemeBreakProperty.txt` - v1.14 (2020-10-24) - Add `WordBreakProperty.txt` - v1.15 (2021-09-15) - Update data files to Unicode release 14.0.0 - v1.16 (2022-09-17) - Update data files to Unicode release 15.0.0 - v1.17 (2023-09-18) - Update data files to Unicode release 15.1.0 - Adjust `load-unicode-xetex-classes.txt` for modified data file format License and permission ====================== This bundle is copyright (C) 2015-2023 The LaTeX Project It may be distributed and/or modified under the conditions of the LaTeX Project Public License (LPPL), either version 1.3c of this license or (at your option) any later version. The latest version of this license is in the file http://www.latex-project.org/lppl.txt. The source data (`.txt` files) are supplied by the Unicode Consortium and the following notice applies. COPYRIGHT AND PERMISSION NOTICE Copyright © 1991-2023 Unicode, Inc. All rights reserved. Distributed under the Terms of Use in https://www.unicode.org/copyright.html. 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