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+babel-greek
+***********
+Babel support for the Greek language and script
+===============================================
+
+:Copyright: © 1997 Apostolos Syropoulos, Claudio Beccari, Johannes Brahms,
+ © 2013 Günter Milde
+:Licence: This work may be distributed and/or modified under the
+ conditions of the `LaTeX Project Public License`_, either
+ version 1.3 of this license or any later version.
+
+:Abstract: Babel-greek is a contributed package providing support for the
+ Greek language and script via the Babel_ system.
+
+ The file ``greek.ldf`` provides options for the monotonic
+ (single-diacritic), polytonic (multiple-diacritic) and ancient
+ orthography of the Greek language.
+
+ Since 2013-07-19, babel-greek supports also Unicode-aware TeX
+ engines (XeTeX/LuaTeX).
+
+News
+----
+
+.. class:: borderless
+
+===== ============ ============================================================
+1.4 2013-05-17 New maintainer.
+.. The encoding definition file ``lgrenc.def`` moved to the
+ greek-fontenc_ package.
+
+1.5 2013-06-21 bugfixes and cleanup,
+.. LICR macros in string definitions,
+.. LGR font encoding not used with XeTeX/LuaTeX,
+.. input "xgreek-fixes.def" from polyglossia_ with Xe/LuaTeX.
+1.5a 2013-07-02 Fix LaTeX bugs babel/3707, `babel/4303`_ and `babel/4305`_
+1.6 2013-07-19 Experimental support for XeTeX/LuaTeX.
+1.7 2013-09-09 CB-Fonts font definition files moved to CB-Fonts package.
+.. Do not auto-load euenc.def with XeTeX/LuaTeX.
+1.7a 2013-09-13 Fix bug `babel/4360`_: spurious ``\fi``.
+1.7b 2013-10-01 bugfix: correct upcasing of babel strings with Xe/LuaTeX.
+1.8 2013-12-02 Rename ``greek.dtx`` to ``babel-greek`` so that texdoc_
+ shows the right documentation.
+.. Compatibility with Xe/LuaTeX in Unicode and 8-bit mode.
+1.8a 2013-12-03 Set ``\encodingdefault`` in ``\greekscript`` to fix
+ Greek in footnotes etc. with document language Greek.
+1.9 2014-07-20 Added attribute for ancient Greek, load correct hyphenation
+ patterns: Patch by Claudio Beccari. Bugfix for Makeuppercase
+1.9a 2014-09-12 Remove duplicate code, documentation review.
+1.9b 2014-09-18 Remove spurious whitespace from "extrasgreek" definition.
+.. Use named macros instead of non-standard short macros
+ for psili and dasia in the string definitions.
+1.9c 2014-10-21 Fix dummy hyphenation language names (patch Ulrike Fischer).
+1.9d 2015-09-04 Remove `grsymb` (macros for Greek symbols).
+ This package is outdated and obsoleted by greek-fontenc_
+ (reported by Claudio Beccari).
+.. Unicode uc/lc corrections now in greek-fontenc
+ (polyglossia's ``xgreek-fixes.def`` has bugs).
+1.9e 2015-11-27 Fix bug in lccode-setting loop (patch by Enrico Gregorio).
+1.9f 2016-02-04 Support for standard Unicode text font encoding "TU"
+ (new in fontspec v2.5a).
+1.9g 2016-09-07 Babel 3.9i deprecated ``\textlatin``
+ and fixed ``\latinencoding``.
+1.9.h 2019-07-11 Move breathing composite commands to textalpha_.
+===== ============ ============================================================
+
+
+.. _babel/4303: http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=babel/4303
+.. _babel/4305: http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=babel/4305
+.. _babel/4360: http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=babel/4360
+
+Files
+-----
+
+`<babel-greek.ins>`_; `<babel-greek.pdf>`_
+ Source of the language definition file ``greek.ldf`` for use with Babel_.
+`<athnum.dtx>`_; `<athnum.pdf>`_
+ Athenian Numerals.
+`<grmath.dtx>`_; `<grmath.pdf>`_
+ Greek log-like Operators.
+`<test-greek.pdf>`_; `<test-greek.tex>`_
+ Tests and Examples for 8-bit TeX.
+`<test-unicode-greek.pdf>`_; `<test-unicode-greek.tex>`_
+ Tests and Examples for XeTeX/LuaTeX.
+`<test-unicode-lgr.pdf>`_; `<test-unicode-lgr.tex>`_
+ Tests and Examples for XeTeX/LuaTeX with LGR 8-bit fonts.
+
+`<usage.pdf>`_; `<usage.tex>`_
+ Description of the `LGR Latin transliteration`_.
+
+
+
+Requirements
+------------
+
+The "babel-greek" package requires the babel_ base package and font
+definition files from the greek-fontenc_ package. The greek-inputenc_
+package is recommended when using 8-bit TeX engines.
+
+Typesetting Greek texts requires `Greek text fonts`_.
+
+Plain TeX is currently not supported. Patches are welcome.
+
+
+Installation
+------------
+
+If possible, get this package from your distribution using its installation
+manager.
+
+Otherwise, make sure LaTeX can find the required files:
+
+* Download and unpack `babel-greek.zip`.
+
+* Run ``tex`` or ``latex`` on the batch file ``babel-greek.ins``.
+
+ This will generate the files ``greek.ldf``, ``athnum.sty``, and
+ ``grmath.sty`` in the current directory. [#]_
+
+* Move all files ending in ``.ldf`` or ``.sty`` into a directory searched by
+ TeX.
+
+* To produce the documentation, run the file ``usage.tex`` and all files
+ ending in ``.dtx`` through LaTeX.
+
+.. [#] If these files already exist somewhere in the TeX-path, you will be
+ warned that they might be overwritten. You can ignore this
+ warning and answer `y` unless the *current directory* contains versions
+ of these files you want to keep.
+
+ This is done by docstrip_. Try ``texdoc docstrip`` for details.
+
+Usage
+-----
+
+Use the "greek" document option or pass the "greek" option to babel::
+
+ \usepackage[greek]{babel}
+
+For polytonic Greek, set the language attribute "polutoniko"::
+
+ \usepackage[greek]{babel}
+ \languageattribute{greek}{polutoniko}
+
+or ::
+
+ \usepackage[greek.polutoniko,english]{babel}
+
+Similarly, the attribute "ancient" selects the ancient Greek language
+variant.
+
+For details see `<babel-greek.pdf>`_ and the babel_ documentation.
+
+With XeTeX/LuaTeX, load fontspec_ before babel_, so that babel-greek can
+set up the Unicode font encoding for use with Greek, e.g. ::
+
+ \usepackage{fontspec}
+ \setmainfont{Linux Libertine O}
+ \setsansfont{Linux Biolinum O}
+ \usepackage[greek,english]{babel}
+
+Note, that the default font used with XeTeX/LuaTeX (Latin Modern) misses most
+Greek letters. Warnings about missing charcters are only written to the log
+file, not the console output!
+
+
+Input of Greek characters is possible as literal characters (with the
+greek-inputenc_ package or with XeTeX or LuaTeX) or the `LGR Latin
+transliteration`_. See `<usage.pdf>`_ and the example files provided with
+greek-fontenc_.
+
+Greek text fonts
+----------------
+
+A list of Greek text fonts for use with LaTeX is available at the CTAN
+http://www.ctan.org/topic/font-greek
+
+With the XeTeX or LuaTeX engines, the user should ensure that the chosen
+font contains the required glyphs (the default Latin Modern fonts miss
+them). Examples for suitable fonts are the CM-unicode_ or the `Linux
+Libertine`_ OpenType fonts as well as any system-wide installed OTF fonts
+that support Greek (e.g. `Deja Vu`_).
+
+The LGR `font encoding`_ is the de-facto standard for typesetting Greek with
+8-bit LaTeX. Fonts in this encoding include the `CB fonts`_ (matching CM),
+grtimes_ (Greek Times), Kerkis_ (matching URW Bookman), and the `GFS font
+collection`_. Setup of these fonts as Greek variant to matching Latin fonts
+is facilitated by the substitutefont_ package.
+
+LGR Latin Transliteration
+-------------------------
+
+The LGR font encoding allows input of Greek characters via an ASCII
+transliteration. This enables simple input with a Latin keyboard. Characters
+with diacritics may be selected with accent macros (cf. greek-fontenc_) or
+via the ligature definitions in the font (see `<usage.pdf>`_).
+
+The following ASCII characters are converted to Greek symbols:
+
+= = = = = = = = = = = = = = = = = = = = = = = = =
+A B G D E Z H J I K L M N X O P R S T U F Q Y W
+Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω
+a b g d e z h j i k l m n x o p r s c t u f q y w
+α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ ς τ υ φ χ ψ ω
+= = = = = = = = = = = = = = = = = = = = = = = = =
+
+Accent symbols and punctuation:
+
+================= ===== == ====================== ======== ====
+tonos ``'`` ά semicolon ``;`` ·
+varia \` ὰ question mark ``?`` ;
+perispomeni ``~`` ᾶ left apostrophe \` \` ‘
+dasia ``<`` ἁ right apostrophe ``''`` ’
+psili ``>`` ἀ left quotation mark ``((`` «
+ypogegrammeni ``|`` ᾳ right quotation mark ``))`` »
+dialytika ``"`` ϊ zero width non-joiner v
+================= ===== == ====================== ======== ====
+
+A major drawback of the LGR transliteration is that you cannot access Latin
+letters and some symbols if LGR is the active font encoding (e.g. in
+documents or parts of documents given the `Babel` language ``greek``). This
+means that for every Latin-written word or acronym an explicit
+language-switch is required. This problem can only be solved via a
+font-encoding comprising both Latin and Greek like the hypothetical T7 or
+Unicode (with XeTeX or LuaTeX).
+
+.. References
+ ----------
+
+.. _LaTeX Project Public License: http://www.latex-project.org/lppl.txt
+.. _babel: http://www.ctan.org/pkg/babel
+.. _docstrip: http://www.ctan.org/pkg/docstrip
+.. _font encoding: http://mirror.ctan.org/macros/latex/doc/encguide.pdf
+.. _fontspec: http://www.ctan.org/pkg/fontspec
+.. _CB Fonts: http://www.ctan.org/pkg/cbgreek-complete
+.. _CM-unicode: http://www.ctan.org/pkg/cm-unicode
+.. _Deja Vu: http://dejavu-fonts.org
+.. _e-TeX: http://www.tex.ac.uk/cgi-bin/texfaq2html?label=etex
+.. _grtimes: http://www.ctan.org/pkg/grtimes
+.. _textalpha:
+.. _greek-fontenc: http://www.ctan.org/pkg/greek-fontenc
+.. _greek-inputenc: http://www.ctan.org/pkg/greek-inputenc
+.. _GFS font collection: http://www.ctan.org/pkg/gfs
+.. _Kerkis: http://www.ctan.org/pkg/kerkis
+.. _Linux Libertine: http://www.ctan.org/pkg/libertine
+.. _polyglossia: http://www.ctan.org/pkg/polyglossia
+.. _substitutefont: http://www.ctan.org/pkg/substitutefont
+.. _texdoc: http://www.ctan.org/pkg/texdoc