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+% alphabeta: Greek symbols in text and math
+% *****************************************
+%
+% :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: Use ``\alpha, \beta, ...`` for Greek letters in text and math.
+%
+% :Identification:
+% ::
+
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{alphabeta}
+[2012/06/26 v0.1 macros for Greek letters in text and math]
+
+% This package is part of the lgrx_ bundle.
+%
+% Changelog:
+% .. class:: borderless
+%
+% ========== ===== =========================================================
+% 2012-06-26 0.1 initial version
+% ========== ===== =========================================================
+%
+% Motivation
+% ==========
+%
+% By default, the ``\alpha, \beta, ...`` macros for Greek letters
+% are only valid in mathematical mode.
+%
+% The `textalpha` 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 under the names
+% ``\textalpha, \textbeta``, ..., ``\textOmega``.
+%
+% With this package, the math macros are redefined to work both, text and
+% math, so that single Greek letters or simple words can be written with the
+% established command names.
+%
+% Attention
+% While the macros work reasonably well for single letters, the automatic
+% font-encoding switches behind the doors interferes with the kerning
+% between the letters and replacement of accent+character with a
+% pre-composed character.
+%
+% Therefore, Greek text should be written with the help of babel_, setting
+% the language to either ``greek`` or ``polutonikogreek`` or wrapped in the
+% provided ``\TextGreek`` macro.
+%
+%
+% Implementation
+% ==============
+%
+% This package extends the `textalpha` package::
+
+\RequirePackage{textalpha}
+
+% It uses the ``\TextOrMath`` test from the fixltx2e_ standard LaTeX
+% package::
+
+\RequirePackage{fixltx2e}
+
+% .. _fixltx2e: http://www.ctan.org/pkg/fixltx2e
+%
+%
+% Save math macros
+% ----------------
+%
+% Provide an alias for the standard math commands::
+
+\let\mathGamma\Gamma
+\let\mathDelta\Delta
+\let\mathTheta\Theta
+\let\mathLambda\Lambda
+\let\mathXi\Xi
+\let\mathPi\Pi
+\let\mathSigma\Sigma
+\let\mathUpsilon\Upsilon
+\let\mathPhi\Phi
+\let\mathPsi\Psi
+\let\mathOmega\Omega
+%
+\let\mathalpha\alpha
+\let\mathbeta\beta
+\let\mathgamma\gamma
+\let\mathdelta\delta
+\let\mathepsilon\epsilon
+\let\mathzeta\zeta
+\let\matheta\eta
+\let\maththeta\theta
+\let\mathiota\iota
+\let\mathkappa\kappa
+\let\mathlambda\lambda
+\let\mathmu\mu
+\let\mathnu\nu
+\let\mathxi\xi
+\let\mathpi\pi
+\let\mathrho\rho
+\let\mathsigma\sigma
+\let\mathvarsigma\varsigma
+\let\mathtau\tau
+\let\mathupsilon\upsilon
+\let\mathphi\phi
+\let\mathchi\chi
+\let\mathpsi\psi
+\let\mathomega\omega
+
+
+% Commands to access Greek letters by name
+% ----------------------------------------
+%
+% For letters defined in math mode, the commands work in both, text and math.
+%
+% Some Greek letters look identic to Latin letters and can therefore not be
+% used as variable symbols in math formulas. These letters are not defined in
+% TeX's math mode, but we define an alias to the corrsponding ``\text...``
+% command.
+% ::
+
+\newcommand{\Alpha}{\textAlpha}
+\newcommand{\Beta}{\textBeta}
+\renewcommand{\Gamma}{\TextOrMath{\textGamma}{\mathGamma}}
+\renewcommand{\Delta}{\TextOrMath{\textDelta}{\mathDelta}}
+\newcommand{\Epsilon}{\textEpsilon}
+\newcommand{\Zeta}{\textZeta}
+\newcommand{\Eta}{\textEta}
+\renewcommand{\Theta}{\TextOrMath{\textTheta}{\mathTheta}}
+\newcommand{\Iota}{\textIota}
+\newcommand{\Kappa}{\textKappa}
+\renewcommand{\Lambda}{\TextOrMath{\textLambda}{\mathLambda}}
+\newcommand{\Mu}{\textMu}
+\newcommand{\Nu}{\textNu}
+\renewcommand{\Xi}{\TextOrMath{\textXi}{\mathXi}}
+\newcommand{\Omicron}{\textOmicron}
+\renewcommand{\Pi}{\TextOrMath{\textPi}{\mathPi}}
+\newcommand{\Rho}{\textRho}
+\renewcommand{\Sigma}{\TextOrMath{\textSigma}{\mathSigma}}
+\newcommand{\Tau}{\textTau}
+\renewcommand{\Upsilon}{\TextOrMath{\textUpsilon}{\mathUpsilon}}
+\renewcommand{\Phi}{\TextOrMath{\textPhi}{\mathPhi}}
+\newcommand{\Chi}{\textChi}
+\renewcommand{\Psi}{\TextOrMath{\textPsi}{\mathPsi}}
+\renewcommand{\Omega}{\TextOrMath{\textOmega}{\mathOmega}}
+%
+\renewcommand{\alpha}{\TextOrMath{\textalpha}{\mathalpha}}
+\renewcommand{\beta}{\TextOrMath{\textbeta}{\mathbeta}}
+\renewcommand{\gamma}{\TextOrMath{\textgamma}{\mathgamma}}
+\renewcommand{\delta}{\TextOrMath{\textdelta}{\mathdelta}}
+\renewcommand{\epsilon}{\TextOrMath{\textepsilon}{\mathepsilon}}
+\renewcommand{\zeta}{\TextOrMath{\textzeta}{\mathzeta}}
+\renewcommand{\eta}{\TextOrMath{\texteta}{\matheta}}
+\renewcommand{\theta}{\TextOrMath{\texttheta}{\maththeta}}
+\renewcommand{\iota}{\TextOrMath{\textiota}{\mathiota}}
+\renewcommand{\kappa}{\TextOrMath{\textkappa}{\mathkappa}}
+\renewcommand{\lambda}{\TextOrMath{\textlambda}{\mathlambda}}
+\renewcommand{\mu}{\TextOrMath{\textmu}{\mathmu}}
+\renewcommand{\nu}{\TextOrMath{\textnu}{\mathnu}}
+\renewcommand{\xi}{\TextOrMath{\textxi}{\mathxi}}
+\newcommand{\omicron}{\textomicron}
+\renewcommand{\pi}{\TextOrMath{\textpi}{\mathpi}}
+\renewcommand{\rho}{\TextOrMath{\textrho}{\mathrho}}
+\renewcommand{\sigma}{\TextOrMath{\textsigma}{\mathsigma}}
+\renewcommand{\varsigma}{\TextOrMath{\textvarsigma}{\mathvarsigma}}
+\renewcommand{\tau}{\TextOrMath{\texttau}{\mathtau}}
+\renewcommand{\upsilon}{\TextOrMath{\textupsilon}{\mathupsilon}}
+\renewcommand{\phi}{\TextOrMath{\textphi}{\mathphi}}
+\renewcommand{\chi}{\TextOrMath{\textchi}{\mathchi}}
+\renewcommand{\psi}{\TextOrMath{\textpsi}{\mathpsi}}
+\renewcommand{\omega}{\TextOrMath{\textomega}{\mathomega}}
+
+% TextCompositeCommands for the generic macros
+% --------------------------------------------
+%
+% The NFSS TextComposite mechanism looks for the next token without expanding
+% it. In order to let compositions like ``\TextGreek{\'\Alpha}`` or
+% ``\TextGreek{\>"\alpha}`` work as expected we define TextComposites with the
+% `letter name commands` (even so composition only works if the font encoding
+% is LGR). ::
+
+\DeclareTextComposite{\Varia}{LGR}{\alpha}{128}
+\DeclareTextComposite{\Dasia}{LGR}{\alpha}{129}
+\DeclareTextComposite{\Psili}{LGR}{\alpha}{130}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\alpha}{131}
+\DeclareTextComposite{\Tonos}{LGR}{\alpha}{136}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\alpha}{137}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\alpha}{138}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\alpha}{139}
+\DeclareTextComposite{\Perispomeni}{LGR}{\alpha}{144}
+\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\alpha}{145}
+\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\alpha}{146}
+\DeclareTextComposite{\Varia}{LGR}{\eta}{152}
+\DeclareTextComposite{\Dasia}{LGR}{\eta}{153}
+\DeclareTextComposite{\Psili}{LGR}{\eta}{154}
+\DeclareTextComposite{\Tonos}{LGR}{\eta}{160}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\eta}{161}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\eta}{162}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\eta}{163}
+\DeclareTextComposite{\Perispomeni}{LGR}{\eta}{168}
+\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\eta}{169}
+\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\eta}{170}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\eta}{171}
+\DeclareTextComposite{\Varia}{LGR}{\omega}{176}
+\DeclareTextComposite{\Dasia}{LGR}{\omega}{177}
+\DeclareTextComposite{\Psili}{LGR}{\omega}{178}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\omega}{179}
+\DeclareTextComposite{\Tonos}{LGR}{\omega}{184}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\omega}{185}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\omega}{186}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\omega}{187}
+\DeclareTextComposite{\Perispomeni}{LGR}{\omega}{192}
+\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\omega}{193}
+\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\omega}{194}
+\DeclareTextComposite{\Varia}{LGR}{\iota}{200}
+\DeclareTextComposite{\Dasia}{LGR}{\iota}{201}
+\DeclareTextComposite{\Psili}{LGR}{\iota}{202}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\iota}{203}
+\DeclareTextComposite{\Tonos}{LGR}{\iota}{208}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\iota}{209}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\iota}{210}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\iota}{211}
+\DeclareTextComposite{\Perispomeni}{LGR}{\iota}{216}
+\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\iota}{217}
+\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\iota}{218}
+\DeclareTextComposite{\Dialytika}{LGR}{\iota}{240}
+\DeclareTextComposite{\DialytikaVaria}{LGR}{\iota}{241}
+\DeclareTextComposite{\DialytikaTonos}{LGR}{\iota}{242}
+\DeclareTextComposite{\DialytikaPerispomeni}{LGR}{\iota}{243}
+\DeclareTextComposite{\Varia}{LGR}{\upsilon}{204}
+\DeclareTextComposite{\Dasia}{LGR}{\upsilon}{205}
+\DeclareTextComposite{\Psili}{LGR}{\upsilon}{206}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\upsilon}{207}
+\DeclareTextComposite{\Tonos}{LGR}{\upsilon}{212}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\upsilon}{213}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\upsilon}{214}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\upsilon}{215}
+\DeclareTextComposite{\Perispomeni}{LGR}{\upsilon}{220}
+\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\upsilon}{221}
+\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\upsilon}{222}
+\DeclareTextComposite{\Dialytika}{LGR}{\upsilon}{244}
+\DeclareTextComposite{\DialytikaVaria}{LGR}{\upsilon}{245}
+\DeclareTextComposite{\DialytikaTonos}{LGR}{\upsilon}{246}
+\DeclareTextComposite{\DialytikaPerispomeni}{LGR}{\upsilon}{247}
+\DeclareTextComposite{\Varia}{LGR}{\epsilon}{224}
+\DeclareTextComposite{\Dasia}{LGR}{\epsilon}{225}
+\DeclareTextComposite{\Psili}{LGR}{\epsilon}{226}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\epsilon}{227}
+\DeclareTextComposite{\Tonos}{LGR}{\epsilon}{232}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\epsilon}{233}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\epsilon}{234}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\epsilon}{235}
+\DeclareTextComposite{\Varia}{LGR}{\omicron}{228}
+\DeclareTextComposite{\Dasia}{LGR}{\omicron}{229}
+\DeclareTextComposite{\Psili}{LGR}{\omicron}{230}
+\DeclareTextComposite{\DasiaVaria}{LGR}{\omicron}{231}
+\DeclareTextComposite{\Tonos}{LGR}{\omicron}{236}
+\DeclareTextComposite{\DasiaOxia}{LGR}{\omicron}{237}
+\DeclareTextComposite{\PsiliOxia}{LGR}{\omicron}{238}
+\DeclareTextComposite{\PsiliVaria}{LGR}{\omicron}{239}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Alpha}{<A}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Alpha}{<`A}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Alpha}{<'A}
+\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Alpha}{<\char126A}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Alpha}{>A}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Alpha}{>`A}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Alpha}{>'A}
+\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Alpha}{>\char126A}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Alpha}{'A}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Alpha}{`A}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Epsilon}{<E}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Epsilon}{<'E}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Epsilon}{<`E}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Epsilon}{>E}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Epsilon}{>'E}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Epsilon}{>`E}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Epsilon}{'E}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Epsilon}{`E}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Eta}{<H}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Eta}{<`H}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Eta}{<'H}
+\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Eta}{<\char126H}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Eta}{>H}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Eta}{>`H}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Eta}{>'H}
+\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Eta}{>\char126H}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Eta}{'H}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Eta}{`H}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Iota}{<I}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Iota}{<`I}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Iota}{<'I}
+\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Iota}{<\char126I}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Iota}{>I}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Iota}{>`I}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Iota}{>'I}
+\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Iota}{>\char126I}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Iota}{'I}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Iota}{`I}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Omicron}{<O}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Omicron}{<`O}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Omicron}{<'O}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Omicron}{>O}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Omicron}{>`O}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Omicron}{>'O}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Omicron}{'O}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Omicron}{`O}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Upsilon}{<U}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Upsilon}{<`U}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Upsilon}{<'U}
+\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Upsilon}{<\char126U}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Upsilon}{'U}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Upsilon}{`U}
+\DeclareTextCompositeCommand{\Dasia}{LGR}{\Omega}{<W}
+\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Omega}{<`W}
+\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Omega}{<'W}
+\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Omega}{<\char126W}
+\DeclareTextCompositeCommand{\Psili}{LGR}{\Omega}{>W}
+\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Omega}{>`W}
+\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Omega}{>'W}
+\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Omega}{>\char126W}
+\DeclareTextCompositeCommand{\Tonos}{LGR}{\Omega}{'W}
+\DeclareTextCompositeCommand{\Varia}{LGR}{\Omega}{`W}
+\DeclareTextComposite{\Dialytika}{LGR}{\Iota}{219}
+\DeclareTextComposite{\Dialytika}{LGR}{\Upsilon}{223}
+\DeclareTextCompositeCommand{\@hiatus}{LGR}{\Alpha}{\A@hiatus}
+\DeclareTextCompositeCommand{\@hiatus}{LGR}{\Epsilon}{\E@hiatus}
+
+
+% .. References
+% ----------
+% .. _LaTeX Project Public License: http://www.latex-project.org/lppl.txt
+% .. _CB Fonts: http://www.ctan.org/pkg/cbgreek-complete
+% .. _babel: http://www.ctan.org/cgi-bin/ctanPackageInformation.py?id=babel
+% .. _lgrx: http://www.ctan.org/pkg/lgrx
+% .. _fixltx2e: http://www.ctan.org/pkg/fixltx2e