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% Greek symbols in text
% *********************
% 
% :Copyright: © 2010 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:  Provide a set of ``\text*`` macros for Greek letters
%             outside math.
% 
% :Identification:
%  ::

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{textalpha}
[2010/08/04 v0.1 macros for Greek letters in text]

% Changelog:
%   .. class:: borderless
% 
%   ==========  ===== =========================================================
%   2010-06-16  0.1   initial version
%   ==========  ===== =========================================================
% 
% Motivation
% ==========
% 
% By default, the ``\alpha`` -- ``\Omega`` macros for Greek letters
% 
% * are only valid in mathematical mode
% 
% * do not change shape (default shape is italic)
% 
% In Greek text fonts with the LGR font encoding, letters are
% accessible by a Latin transcription. 
% 
% This package provides a set of macros that can be used to access Greek
% symbols from a font in LGR encoding (e.g. the `CB fonts`_) without the
% need for an explicite font-encoding switch.
% 
% The macro names follow the established scheme to prepend ``\text*`` to
% the Adobe glyph name (if it exists) or the corresponding math-macro, so
% ``\textalpha`` -- ``\textOmega`` prints α – Ω.
% 
% * In combination with the ``\text`` macro from amsmath, this can be
%   used to get matching upright and bold upright Greek symbols in math
%   as well.
% 
% * In combination with ``\usepackage[utf8]{inputenc}`` and the
%   accompanying ``lgrenc.dfu`` file, Unicode input of Greek characters
%   is supported.
% 
% This is done using NFSS default definitions as explained in the
% fntguide_ (section 5.3).
% 
% Attention
%   While the macros work reasonably well for single letters, the
%   automatic font-encoding switches behind the doors destroy the
%   kerning between the letters.
% 
%   Text composites (replacement of accent+character with a pre-composed
%   character) work in LGR, but not in other encodings (due to the
%   forth-and-back font encoding switch).  
% 
%   Therefore, Greek text should be written with the help of babel_,
%   setting the language to either ``greek`` or ``polutonikogreek``.
% 
%   
% Implementation
% ==============
% 
% This package requires the extended font encoding definitions::

\input{lgrxenc.def}


% Greek Alphabet
% --------------
% 
% Define the ``text*`` marcos as default for all font encodings::

\DeclareTextSymbolDefault{\textAlpha}{LGR}
\DeclareTextSymbolDefault{\textBeta}{LGR}
\DeclareTextSymbolDefault{\textGamma}{LGR}
\DeclareTextSymbolDefault{\textDelta}{LGR}
\DeclareTextSymbolDefault{\textEpsilon}{LGR}
\DeclareTextSymbolDefault{\textZeta}{LGR}
\DeclareTextSymbolDefault{\textEta}{LGR}
\DeclareTextSymbolDefault{\textTheta}{LGR}
\DeclareTextSymbolDefault{\textIota}{LGR}
\DeclareTextSymbolDefault{\textKappa}{LGR}
\DeclareTextSymbolDefault{\textLambda}{LGR}
\DeclareTextSymbolDefault{\textMu}{LGR}
\DeclareTextSymbolDefault{\textNu}{LGR}
\DeclareTextSymbolDefault{\textXi}{LGR}
\DeclareTextSymbolDefault{\textOmicron}{LGR}
\DeclareTextSymbolDefault{\textPi}{LGR}
\DeclareTextSymbolDefault{\textRho}{LGR}
\DeclareTextSymbolDefault{\textSigma}{LGR}
\DeclareTextSymbolDefault{\textTau}{LGR}
\DeclareTextSymbolDefault{\textUpsilon}{LGR}
\DeclareTextSymbolDefault{\textPhi}{LGR}
\DeclareTextSymbolDefault{\textChi}{LGR}
\DeclareTextSymbolDefault{\textPsi}{LGR}
\DeclareTextSymbolDefault{\textOmega}{LGR}
%
\DeclareTextSymbolDefault{\textalpha}{LGR}
\DeclareTextSymbolDefault{\textbeta}{LGR}
\DeclareTextSymbolDefault{\textgamma}{LGR}
\DeclareTextSymbolDefault{\textdelta}{LGR}
\DeclareTextSymbolDefault{\textepsilon}{LGR}
\DeclareTextSymbolDefault{\textzeta}{LGR}
\DeclareTextSymbolDefault{\texteta}{LGR}
\DeclareTextSymbolDefault{\texttheta}{LGR}
\DeclareTextSymbolDefault{\textiota}{LGR}
\DeclareTextSymbolDefault{\textkappa}{LGR}
\DeclareTextSymbolDefault{\textlambda}{LGR}
\DeclareTextSymbolDefault{\textmu}{LGR}
\DeclareTextSymbolDefault{\textnu}{LGR}
\DeclareTextSymbolDefault{\textxi}{LGR}
\DeclareTextSymbolDefault{\textomicron}{LGR}
\DeclareTextSymbolDefault{\textpi}{LGR}
\DeclareTextSymbolDefault{\textrho}{LGR}
\DeclareTextSymbolDefault{\textsigma}{LGR}
\DeclareTextSymbolDefault{\textvarsigma}{LGR}
\DeclareTextSymbolDefault{\texttau}{LGR}
\DeclareTextSymbolDefault{\textupsilon}{LGR}
\DeclareTextSymbolDefault{\textphi}{LGR}
\DeclareTextSymbolDefault{\textchi}{LGR}
\DeclareTextSymbolDefault{\textpsi}{LGR}
\DeclareTextSymbolDefault{\textomega}{LGR}

% Diacritics
% ----------
% 
% Diacritics are defined via "named" macros in ``lgrxenc.def``. Make them
% default in any encoding::

\DeclareTextAccentDefault{\Dasia}{LGR}
\DeclareTextAccentDefault{\Psili}{LGR}
\DeclareTextAccentDefault{\Tonos}{LGR}
\DeclareTextAccentDefault{\Varia}{LGR}
\DeclareTextAccentDefault{\Perispomeni}{LGR}
\DeclareTextAccentDefault{\Dialytika}{LGR}
\DeclareTextAccentDefault{\<}{LGR}
\DeclareTextAccentDefault{\>}{LGR}
%
\DeclareTextAccentDefault{\DasiaOxia}{LGR}
\DeclareTextAccentDefault{\DasiaVaria}{LGR}
\DeclareTextAccentDefault{\DasiaPerispomeni}{LGR}
\DeclareTextAccentDefault{\PsiliOxia}{LGR}
\DeclareTextAccentDefault{\PsiliVaria}{LGR}
\DeclareTextAccentDefault{\PsiliPerispomeni}{LGR}
\DeclareTextAccentDefault{\DialytikaTonos}{LGR}
\DeclareTextAccentDefault{\DialytikaVaria}{LGR}
\DeclareTextAccentDefault{\DialytikaPerispomeni}{LGR}



% .. References
%    ----------
% .. _LaTeX Project Public License: http://www.latex-project.org/lppl.txt
% .. _babel: http://www.ctan.org/cgi-bin/ctanPackageInformation.py?id=babel
% .. _fntguide: http://www.ctan.org/tex-archive/macros/latex/doc/fntguide.pdf
% .. _CB fonts: http://www.ctan.org/pkg/cbgreek-complete