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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
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+</style>
+</head>
+<body>
+<div class="document" id="textalpha-sty">
+<h1 class="title">textalpha.sty</h1>
+<p class="subtitle" id="greek-symbols-in-text">Greek symbols in text</p>
+<dl class="docinfo">
+<dt class="copyright">Copyright</dt>
+<dd class="copyright">© 2010 Günter Milde</dd>
+<dt class="licence">Licence</dt>
+<dd class="licence"><p>This work may be distributed and/or modified under the
+conditions of the <a class="reference external" href="http://www.latex-project.org/lppl.txt">LaTeX Project Public License</a>, either
+version 1.3 of this license or any later version.</p>
+</dd>
+<dt class="identification">Identification</dt>
+<dd class="identification"><pre class="literal-block">\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{textalpha}
+[2019/07/11 v0.13.4 macros for Greek letters in text]</pre>
+</dd>
+</dl>
+<div class="abstract topic">
+<p class="topic-title first">Abstract</p>
+<p>Provide a set of <span class="docutils literal">\text*</span> macros for Greek characters
+in text mode.</p>
+</div>
+<div class="admonition note">
+<p class="admonition-title">Note</p>
+<p>The package was renamed from <cite>textgreek</cite> to <cite>textalpha</cite> to prevent
+confusion with the <a class="reference external" href="http://www.ctan.org/pkg/textgreek">textgreek</a> package by Leonard Michlmayr.</p>
+</div>
+<dl>
+<dt>Changelog:</dt>
+<dd><table class="borderless">
+<colgroup>
+<col style="width: 8%" />
+<col style="width: 14%" />
+<col style="width: 78%" />
+</colgroup>
+<tbody>
+<tr><td><p>0.1</p></td>
+<td><p>2010-06-16</p></td>
+<td><p>initial version</p></td>
+</tr>
+<tr><td><p>0.2</p></td>
+<td><p>2012-06-27</p></td>
+<td><p>support for compound Unicode definitions outside LGR</p></td>
+</tr>
+<tr><td><p>0.3</p></td>
+<td><p>2013-05-03</p></td>
+<td><p>new accent macro names with <span class="docutils literal">lgrxenc.def</span> 0.7</p></td>
+</tr>
+<tr><td><p>0.4</p></td>
+<td><p>2013-05-28</p></td>
+<td><p>use <span class="docutils literal">lgrenc.def</span> from greek-fontenc.</p></td>
+</tr>
+<tr><td><p>0.5</p></td>
+<td><p>2013-09-11
+..</p></td>
+<td><p>move to <a class="reference external" href="http://www.ctan.org/pkg/greek-fontenc">greek-fontenc</a>,
+support XeTeX/LuaTeX, add breve below accents.</p></td>
+</tr>
+<tr><td><p>0.11</p></td>
+<td><p>2013-11-28</p></td>
+<td><p>compatibility with Xe/LuaTeX in 8-bit mode.</p></td>
+</tr>
+<tr><td><p>0.12</p></td>
+<td><p>2014-12-12</p></td>
+<td><p>fix auxiliary macro names,
+define symbol macros for breathing accents.</p></td>
+</tr>
+<tr><td><p>0.13</p></td>
+<td><p>2015-09-04
+..</p></td>
+<td><p>Option <a class="reference internal" href="#normalize-symbols">normalize-symbols</a>: support for symbol variants.
+Option <a class="reference internal" href="#keep-semicolon">keep-semicolon</a>: use semicolon as erotimatiko
+in LGR.</p></td>
+</tr>
+<tr><td><p>0.13.2</p></td>
+<td><p>2016-02-05</p></td>
+<td><p>Support for standard Unicode text font encoding “TU”
+(new in fontspec v2.5a).</p></td>
+</tr>
+<tr><td><p>0.13.4</p></td>
+<td><p>2019-07-11</p></td>
+<td><p>Auxiliary command for subscript iota.</p></td>
+</tr>
+</tbody>
+</table>
+</dd>
+</dl>
+<div class="contents topic" id="contents">
+<p class="topic-title first">Contents</p>
+<ul class="simple">
+<li><p><a class="reference internal" href="#motivation" id="id1">Motivation</a></p></li>
+<li><p><a class="reference internal" href="#usage" id="id2">Usage</a></p></li>
+<li><p><a class="reference internal" href="#implementation" id="id3">Implementation</a></p>
+<ul>
+<li><p><a class="reference internal" href="#options" id="id4">Options</a></p>
+<ul>
+<li><p><a class="reference internal" href="#normalize-symbols" id="id5">normalize-symbols</a></p></li>
+<li><p><a class="reference internal" href="#keep-semicolon" id="id6">keep-semicolon</a></p></li>
+</ul>
+</li>
+<li><p><a class="reference internal" href="#font-encodings" id="id7">Font encodings</a></p></li>
+<li><p><a class="reference internal" href="#symbol-macros-for-breathings" id="id8">Symbol macros for breathings</a></p></li>
+<li><p><a class="reference internal" href="#default-declarations" id="id9">Default declarations</a></p>
+<ul>
+<li><p><a class="reference internal" href="#greekscript-ensuregreek" id="id10">greekscript, ensuregreek</a></p></li>
+<li><p><a class="reference internal" href="#greek-alphabet" id="id11">Greek Alphabet</a></p></li>
+<li><p><a class="reference internal" href="#additional-greek-symbols" id="id12">Additional Greek symbols</a></p>
+<ul>
+<li><p><a class="reference internal" href="#variant-shape-symbols" id="id13">variant shape symbols</a></p></li>
+</ul>
+</li>
+<li><p><a class="reference internal" href="#diacritics" id="id14">Diacritics</a></p></li>
+<li><p><a class="reference internal" href="#auxiliary-macros" id="id15">Auxiliary macros</a></p></li>
+<li><p><a class="reference internal" href="#semicolon-as-erotimatiko" id="id16">semicolon as erotimatiko</a></p></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="motivation">
+<h1><a class="toc-backref" href="#id1">Motivation</a></h1>
+<p>By default, TeX macros for Greek letters are only valid in mathematical
+mode. This package sets up a suitable <a class="reference internal" href="#font-encoding">font encoding</a> and <cite>LaTeX internal
+character representations</cite> (LICR) definitions for Greek (<span class="docutils literal">\textalpha</span> –
+<span class="docutils literal">\textOmega</span>).</p>
+<p>To allow documents using Greek LICR macros without worrying about the TeX
+engine used to compile them, this package tests the declared font encodings
+and does “the right thing” to set up Greek text font support:</p>
+<ul class="simple">
+<li><p>If the Unicode font encodings EU1 (XeTeX) or EU2 (LuaTeX) are declared,
+before loading this package (e.g. via <span class="docutils literal">fontspec</span>) the package provides
+Greek LICR definitions for them.</p></li>
+<li><p>Otherwise, the <a class="reference external" href="README.html#lgr">LGR font encoding</a> is set as <cite>default font encoding</cite>
+(cf. <a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/fntguide.pdf">fntguide</a> section 5.3) for Greek.</p></li>
+</ul>
+<p>Advantages:</p>
+<ul class="simple">
+<li><p>Symbols from a Greek text font (e.g. the <a class="reference external" href="http://www.ctan.org/pkg/cbgreek-complete">CB fonts</a>) can be accessed
+without the need for an explicite font-encoding switch anywhere in the
+text.</p></li>
+<li><p>Unicode input of Greek characters is supported</p>
+<ul>
+<li><p>via <span class="docutils literal"><span class="pre">\usepackage[utf8]{inputenc}</span></span> and <span class="docutils literal">lgrenc.dfu</span> from
+<a class="reference external" href="http://www.ctan.org/pkg/greek-inputenc">greek-inputenc</a> for 8-bit TeX or XeTeX/LuaTeX in 8-bit compatibility
+mode in any font encoding (see <a class="reference external" href="textalpha-doc.tex">textalpha-doc.tex</a>).</p></li>
+<li><p>natively by XeTeX/LuaTeX for Unicode fonts. As <a class="reference external" href="http://www.ctan.org/pkg/inputenc">inputenc</a> does not work
+with these engines, text input can be done via the Latin transcription
+or LICR but <em>not via literal Unicode characters</em> for 8-bit font encodings
+like LGR (see <a class="reference external" href="greek-euenc-doc.tex">greek-euenc-doc.tex</a>).</p></li>
+</ul>
+</li>
+</ul>
+<div class="admonition attention">
+<p class="admonition-title">Attention!</p>
+<p>The macros work well in any font encoding for single symbols.
+However, with 8-bit TeX engines, the automatic font-encoding switches
+behind the doors interfere with kerning between letters and replacement
+of accent+character with a pre-composed character.</p>
+<p>Therefore, Greek text should be written with the help of <a class="reference external" href="http://www.ctan.org/pkg/babel">babel</a> or
+<a class="reference external" href="http://www.ctan.org/pkg/polyglossia">polyglossia</a> (setting the language to <span class="docutils literal">greek</span>) or wrapped in the
+provided <span class="docutils literal">ensuregreek</span> macro. Using <a class="reference external" href="http://www.ctan.org/pkg/babel">babel</a> or <a class="reference external" href="http://www.ctan.org/pkg/polyglossia">polyglossia</a> also helps
+to ensure correct hyphenation of Greek text.</p>
+</div>
+</div>
+<div class="section" id="usage">
+<h1><a class="toc-backref" href="#id2">Usage</a></h1>
+<p>Ensure support for Greek characters in text mode with</p>
+<pre class="code latex literal-block"><code><span class="keyword">\usepackage</span><span class="name builtin">{</span>textalpha<span class="name builtin">}</span></code></pre>
+<p>eventually with the <a class="reference internal" href="#options">options</a> to normalize symbols variants</p>
+<pre class="code latex literal-block"><code><span class="keyword">\usepackage</span><span class="name attribute">[normalize-symbols]</span><span class="name builtin">{</span>textalpha<span class="name builtin">}</span></code></pre>
+<p>and/or to use the semicolon as <a class="reference external" href="https://en.wikipedia.org/wiki/Question_mark#Erotimatiko">erotimatiko</a> also in 8-bit TeX</p>
+<pre class="code latex literal-block"><code><span class="keyword">\usepackage</span><span class="name attribute">[normalize-symbols,keep-semicolon]</span><span class="name builtin">{</span>textalpha<span class="name builtin">}</span></code></pre>
+<p>To give <span class="docutils literal">textalpha.sty</span> a chance of finding out which <a class="reference internal" href="#font-encodings">font encodings</a>
+are used, load it after <a class="reference external" href="http://www.ctan.org/pkg/fontspec">fontspec</a> and/or <a class="reference external" href="http://www.ctan.org/pkg/fontenc">fontenc</a>.</p>
+<p>For detailled examples see <a class="reference external" href="textalpha-doc.tex">textalpha-doc.tex</a> and <a class="reference external" href="textalpha-doc.pdf">textalpha-doc.pdf</a>
+(8-bit TeX and XeTeX/LuaTeX in 8-bit compatibility mode) as well as
+<a class="reference external" href="greek-euenc-doc.tex">greek-euenc-doc.tex</a> and <a class="reference external" href="greek-euenc-doc.pdf">greek-euenc-doc.pdf</a> (XeTeX/LuaTeX with
+Unicode fonts).</p>
+<p>With XeTeX or LuaTex, Unicode fonts and LGR encoded 8-bit fonts can be used
+in the same document (see <a class="reference external" href="greek-euenc-doc.tex">greek-euenc-doc.tex</a>).</p>
+</div>
+<div class="section" id="implementation">
+<h1><a class="toc-backref" href="#id3">Implementation</a></h1>
+<div class="section" id="options">
+<h2><a class="toc-backref" href="#id4">Options</a></h2>
+<div class="section" id="normalize-symbols">
+<h3><a class="toc-backref" href="#id5">normalize-symbols</a></h3>
+<p>The “variant shape” symbol characters like <span class="docutils literal">03D1 GREEK THETA SYMBOL</span> are
+mathematical charcters for mathematical use
+(similar to <span class="docutils literal">1D440 MATHEMATICAL ITALIC CAPITAL M</span>).
+Unfortunately, some Greek texts sources in Unicode encoding mix letter and
+symbol characters .</p>
+<p>The “normalize-symbols” option controls the handling of <a class="reference internal" href="#variant-shape-symbols">variant shape
+symbols</a> under 8-bit TeX:</p>
+<ul class="simple">
+<li><p>The option activates a simple “folding” mechanism that merges ϰ and κ to
+textkappa etc. for text copied from external sources which may use the
+GREEK SYMBOL characters in place of GREEK LETTERS,</p></li>
+<li><p>Without this option, variant shape symbols in the input are reported as
+errors to prevent information loss in cases where the distinction between
+ϰ and κ is intended (e.g. in mathematical or scientific context).</p></li>
+</ul>
+<p>With XeTeX/LuaTeX and Unicode fonts, this option is ignored.</p>
+<pre class="literal-block">\newif\iftextalpha&#64;normalizeSymbols
+\DeclareOption{normalize-symbols}{\textalpha&#64;normalizeSymbolstrue}</pre>
+</div>
+<div class="section" id="keep-semicolon">
+<h3><a class="toc-backref" href="#id6">keep-semicolon</a></h3>
+<p>The <a class="reference external" href="https://en.wikipedia.org/wiki/Question_mark#Erotimatiko">erotimatiko</a> looks like a semicolon but is a
+<strong>Greek question mark</strong>:</p>
+<ul class="simple">
+<li><p>The <a class="reference external" href="README.html#lgr">LGR font encoding</a> uses the Latin question mark as input for the
+<cite>erotimatiko</cite> and maps the semicolon to a middle dot (<cite>ano teleia</cite>).</p></li>
+<li><p>The Unicode standard provides the code point <span class="docutils literal">037E GREEK QUESTION MARK</span>
+but says: “character <span class="docutils literal">003B SEMICOLON</span> (and not 037E) is the preferred
+character for Greek question mark”.</p></li>
+</ul>
+<p>The <span class="docutils literal"><span class="pre">keep-semicolon</span></span> option allows to use the <a class="reference internal" href="#semicolon-as-erotimatiko">semicolon as erotimatiko</a>
+in both, Xe/LuaTeX and 8-bit TeX. (The <cite>ano teleia</cite> can be input as
+<span class="docutils literal">\textanoteleia</span> or using character <span class="docutils literal">00B7 MIDDLE DOT</span>.)
+With XeTeX/LuaTeX and Unicode fonts, this option is ignored.</p>
+<pre class="literal-block">\newif\iftextalpha&#64;keepSemicolon
+\DeclareOption{keep-semicolon}{\textalpha&#64;keepSemicolontrue}
+
+\ProcessOptions\relax</pre>
+</div>
+</div>
+<div class="section" id="font-encodings">
+<span id="font-encoding"></span><h2><a class="toc-backref" href="#id7">Font encodings</a></h2>
+<p>With 8-bit LaTeX, the <a class="reference external" href="README.html#lgr">LGR font encoding</a> is used for Greek characters. If
+no Greek-supporting font encoding (TU, EU1, EU2, or LGR) is declared, LGR is
+loaded and set up as default Greek font encoding by this package.</p>
+<p>With XeTeX or LuaTeX, there is one common input and font encoding –
+Unicode. 8-bit TeX font encodings are only used in compatibility mode or for
+fonts not available otherwise. For compatibility with the LaTeX font
+selection system, <a class="reference external" href="http://www.ctan.org/pkg/fontspec">fontspec</a> defines the TU font encoding or the (pseudo)
+font encodings EU1 and EU2 for XeTeX and LuaTeX respectively. However
+<cite>fontspec</cite> does not (yet) define Greek LICR macros. We therefore explicitely
+load Greek LICR definitions for XeTeX/LuaTeX from <a class="reference external" href="greek-euenc.def.html">greek-euenc.def</a> which in turn includes <a class="reference external" href="greek-fontenc.def.html">greek-fontenc.def</a>.</p>
+<p>Ensure a Greek-supporting font encoding exists and supports Greek LICR
+macros:</p>
+<ul class="simple">
+<li><p>Load the Greek LICR definitions for Unicode if the font encoding TU, EU1
+(XeTeX) or EU2 (LuaTeX) is detected.</p></li>
+<li><p>Re-set <span class="docutils literal">\LastDeclaredEncoding</span> (used in some included font-encoding files).</p></li>
+<li><p>If none of TU, EU1, EU2, or LGR is declared, load <span class="docutils literal">lgrenc.def</span>.</p></li>
+</ul>
+<pre class="literal-block">\&#64;ifl&#64;aded{def}{tuenc}{
+ \renewcommand{\LastDeclaredEncoding}{TU}
+ \input{greek-euenc.def}
+}{% else
+ \&#64;ifl&#64;aded{def}{eu1enc}{
+ \renewcommand{\LastDeclaredEncoding}{EU1}
+ \input{greek-euenc.def}
+ }{% else
+ \&#64;ifl&#64;aded{def}{eu2enc}{
+ \renewcommand{\LastDeclaredEncoding}{EU2}
+ \input{greek-euenc.def}
+ }{% else
+ \&#64;ifl&#64;aded{def}{lgrenc}{
+ % LGR already declared and set up
+ \renewcommand{\LastDeclaredEncoding}{LGR}
+ }{
+ \input{lgrenc.def}
+ }
+ }
+ }
+}</pre>
+<p>The package <a class="reference external" href="http://www.ctan.org/pkg/hyperref">hyperref</a> defines the PU font encoding which also supports
+(monotonic) Greek. It currently misses polytonic greek and the
+<span class="docutils literal">\greekscript</span> and <span class="docutils literal">\ensuregreek</span> TextCommands:</p>
+<pre class="literal-block">\&#64;ifl&#64;aded{def}{puenc}
+ {\ProvideTextCommand{\greekscript}{PU}{}
+ \ProvideTextCommand{\ensuregreek}{PU}[1]{#1}}
+ {}</pre>
+</div>
+<div class="section" id="symbol-macros-for-breathings">
+<h2><a class="toc-backref" href="#id8">Symbol macros for breathings</a></h2>
+<p>In the Latin transcription provided by LGR, breathing accents (Dasia and
+Psili) are input as &lt; and &gt;. We provide the corresponding NFSS macro accents
+(moved here from <a class="reference external" href="greek-fontenc.def.html">greek-fontenc.def</a>).</p>
+<p>As Xe/LuaTeX may use LGR in combination with EU1 or EU2, we define the
+macros twice, for LGR and Unicode font encodings (if they are defined):</p>
+<pre class="literal-block">\&#64;ifl&#64;aded{def}{lgrenc}{
+ \DeclareTextCommand{\&lt;}{LGR}{\accdasia}
+ \DeclareTextCommand{\&gt;}{LGR}{\accpsili}
+ % Composite accents starting with the new-defined shortcuts:
+ \DeclareTextCompositeCommand{\&gt;}{LGR}{'}{\accpsilioxia}
+ \DeclareTextCompositeCommand{\&gt;}{LGR}{`}{\accpsilivaria}
+ \DeclareTextCompositeCommand{\&gt;}{LGR}{~}{\accpsiliperispomeni}
+ \DeclareTextCompositeCommand{\&lt;}{LGR}{'}{\accdasiaoxia}
+ \DeclareTextCompositeCommand{\&lt;}{LGR}{`}{\accdasiavaria}
+ \DeclareTextCompositeCommand{\&lt;}{LGR}{~}{\accdasiaperispomeni}
+ % Hiatus feature (see greek-fontenc.def and babel-greek (greek.ldf))
+ \DeclareTextCompositeCommand{\&lt;}{LGR}{^^9f}{\LGR&#64;hiatus}
+ \DeclareTextCompositeCommand{\&gt;}{LGR}{^^9f}{\LGR&#64;hiatus}
+
+}{}
+
+\&#64;ifl&#64;aded{def}{greek-euenc}{ % XeTeX or LuaTeX with Unicode fonts
+ \DeclareTextCommand{\&lt;}{\LastDeclaredEncoding}{\accdasia}
+ \DeclareTextCommand{\&gt;}{\LastDeclaredEncoding}{\accpsili}
+ % Composite accents starting with the new-defined shortcuts:
+ \DeclareTextCompositeCommand{\&gt;}{\LastDeclaredEncoding}{'}{\accpsilioxia}
+ \DeclareTextCompositeCommand{\&gt;}{\LastDeclaredEncoding}{`}{\accpsilivaria}
+ \DeclareTextCompositeCommand{\&gt;}{\LastDeclaredEncoding}{~}{\accpsiliperispomeni}
+ \DeclareTextCompositeCommand{\&lt;}{\LastDeclaredEncoding}{'}{\accdasiaoxia}
+ \DeclareTextCompositeCommand{\&lt;}{\LastDeclaredEncoding}{`}{\accdasiavaria}
+ \DeclareTextCompositeCommand{\&lt;}{\LastDeclaredEncoding}{~}{\accdasiaperispomeni}
+}{}</pre>
+</div>
+<div class="section" id="default-declarations">
+<h2><a class="toc-backref" href="#id9">Default declarations</a></h2>
+<p>The following definitions ensure that the Greek LICR macros can be used
+anywhere in the document also with 8-bit TeX by declaring LGR as their
+default font encoding. Abort here, if the LGR font encoding is not defined:</p>
+<pre class="literal-block">\&#64;ifl&#64;aded{def}{lgrenc}
+ {}
+% else return:
+ {\expandafter\endinput}</pre>
+<div class="section" id="greekscript-ensuregreek">
+<h3><a class="toc-backref" href="#id10">greekscript, ensuregreek</a></h3>
+<p>The <span class="docutils literal">\greekscript</span> declaration ensures the current font encoding supports
+the Greek script. <span class="docutils literal"><span class="pre">greek-fontenc.def</span></span> sets this to the empty declaration
+for font encodings that do so. This is currently used by <span class="docutils literal">lgrenc.def</span>
+(LGR) and <span class="docutils literal"><span class="pre">greek-euenc.def</span></span> (Greek LICR macros for EU1 and EU2).</p>
+<p>We define LGR as default encoding for Greek text. We use
+<span class="docutils literal">\ProvideTextCommandDefault</span> to enable the author or other packages to use
+an alternative definition (see [<a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/fntguide.pdf">fntguide</a>]):</p>
+<pre class="literal-block">\ProvideTextCommandDefault{\greekscript}{\fontencoding{LGR}\selectfont}</pre>
+<p>The <span class="docutils literal">\ensuregreek</span> command can be used to ensure that its argument is set in
+a font encoding with support for Greek. Again the default is LGR:</p>
+<pre class="literal-block">\ProvideTextCommandDefault{\ensuregreek}[1]{\leavevmode{\greekscript #1}}</pre>
+<!-- The [fntguide_] writes
+
+ Note that ``\DeclareTextAccentDefault`` can be used on any
+ one-argument encoding-specific command, not just those defined with
+ ``\DeclareTextAccent``.
+
+However, the simpler alternative
+``\DeclareTextAccentDefault{\ensuregreek}{LGR}`` fails with the table of
+Unicode characters in the test document `<textalpha-doc.tex>`__:
+
+ ``! You can't use a prefix with `end-group character }'.`` -->
+<p>Eventually, all font encodings supporting Greek script (e.g. LGI, PU, TU,
+EU1, EU2) will declare <span class="docutils literal">\ensuregreek</span> as text command that passes the
+argument unchanged. This way, kerning and selection of precomposed glyphs
+would work also for cases like <span class="docutils literal"><span class="pre">\ensuregreek{\'A}U</span></span>.</p>
+</div>
+<div class="section" id="greek-alphabet">
+<h3><a class="toc-backref" href="#id11">Greek Alphabet</a></h3>
+<p>Define the <span class="docutils literal">text*</span> marcos as default for all font encodings:</p>
+<pre class="literal-block">\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{\textfinalsigma}{LGR} % alias for \textvarsigma
+\DeclareTextSymbolDefault{\textautosigma}{LGR} % char 115 in LGR
+\DeclareTextSymbolDefault{\texttau}{LGR}
+\DeclareTextSymbolDefault{\textupsilon}{LGR}
+\DeclareTextSymbolDefault{\textphi}{LGR}
+\DeclareTextSymbolDefault{\textchi}{LGR}
+\DeclareTextSymbolDefault{\textpsi}{LGR}
+\DeclareTextSymbolDefault{\textomega}{LGR}</pre>
+</div>
+<div class="section" id="additional-greek-symbols">
+<h3><a class="toc-backref" href="#id12">Additional Greek symbols</a></h3>
+<p>Including alias names for compatibility with hyperref’s puenc.def.</p>
+<p>Ancient Greek Numbers (Athenian Numerals):</p>
+<pre class="literal-block">\DeclareTextSymbolDefault{\textpentedeka}{LGR} % GREEK ACROPHONIC ATTIC FIFTY
+\DeclareTextSymbolDefault{\textpentehekaton}{LGR} % GREEK ACROPHONIC ATTIC FIVE HUNDRED
+\DeclareTextSymbolDefault{\textpenteqilioi}{LGR} % GREEK ACROPHONIC ATTIC FIVE THOUSAND
+\DeclareTextSymbolDefault{\textpentemurioi}{LGR} % GREEK ACROPHONIC ATTIC FIFTY THOUSAND</pre>
+<p>Archaic letters:</p>
+<pre class="literal-block">\DeclareTextSymbolDefault{\textstigma}{LGR} % ϛ
+\DeclareTextSymbolDefault{\textstigmagreek}{LGR} % ϛ (puenc.def)
+\DeclareTextSymbolDefault{\textvarstigma}{LGR} % stigma variant
+\DeclareTextSymbolDefault{\textkoppa}{LGR} % ϟ (greek small letter koppa)
+\DeclareTextSymbolDefault{\textkoppagreek}{LGR} % ϟ (puenc.def)
+\DeclareTextSymbolDefault{\textqoppa}{LGR} % ϙ (archaic koppa)
+\DeclareTextSymbolDefault{\textQoppa}{LGR} % Ϙ (archaic Koppa)
+\DeclareTextSymbolDefault{\textStigma}{LGR} % Ϛ ϹΤ ligature in some fonts
+\DeclareTextSymbolDefault{\textStigmagreek}{LGR} % Ϛ (puenc.def)
+\DeclareTextSymbolDefault{\textSampi}{LGR} % Ϡ
+\DeclareTextSymbolDefault{\textSampigreek}{LGR} % Ϡ (puenc.def)
+\DeclareTextSymbolDefault{\textsampi}{LGR} % ϡ
+\DeclareTextSymbolDefault{\textsampigreek}{LGR} % ϡ (puenc.def)
+\DeclareTextSymbolDefault{\textanoteleia}{LGR} % ·
+\DeclareTextSymbolDefault{\texterotimatiko}{LGR} % ; (003B is the preferred character)
+\DeclareTextSymbolDefault{\textdigamma}{LGR} % ϝ
+\DeclareTextSymbolDefault{\textDigamma}{LGR} % Ϝ
+\DeclareTextSymbolDefault{\textdigammagreek}{LGR} % ϝ (puenc.def)
+\DeclareTextSymbolDefault{\textDigammagreek}{LGR} % Ϝ (puenc.def)</pre>
+<p>numeral signs: <a class="reference external" href="http://en.wikipedia.org/wiki/Greek_numerals">http://en.wikipedia.org/wiki/Greek_numerals</a></p>
+<pre class="literal-block">\DeclareTextSymbolDefault{\textnumeralsigngreek}{LGR} % (puenc.def)
+\DeclareTextSymbolDefault{\textnumeralsignlowergreek}{LGR} % (puenc.def)</pre>
+<div class="section" id="variant-shape-symbols">
+<h4><a class="toc-backref" href="#id13">variant shape symbols</a></h4>
+<p>Mathematical notation uses variant shapes of some Greek letters as
+additional symbols. There are separate code points for the symbol variants
+in Unicode but not in the LGR font encoding used for Greek in 8-bit TeX.
+The variations have no syntactic meaning in Greek text.</p>
+<pre class="literal-block">\DeclareTextSymbolDefault{\textbetasymbol}{LGR} % ϐ GREEK BETA SYMBOL
+\DeclareTextSymbolDefault{\textthetasymbol}{LGR} % ϑ $\vartheta$ GREEK THETA SYMBOL
+\DeclareTextSymbolDefault{\textphisymbol}{LGR} % ϕ $\phi$ GREEK PHI SYMBOL
+\DeclareTextSymbolDefault{\textpisymbol}{LGR} % ϖ $\varpi$ GREEK PI SYMBOL
+\DeclareTextSymbolDefault{\textkappasymbol}{LGR} % ϰ GREEK KAPPA SYMBOL
+\DeclareTextSymbolDefault{\textrhosymbol}{LGR} % ϱ $\varrho$ GREEK RHO SYMBOL
+\DeclareTextSymbolDefault{\textThetasymbol}{LGR} % ϴ GREEK CAPITAL THETA SYMBOL
+\DeclareTextSymbolDefault{\textepsilonsymbol}{LGR} % ϵ $\epsilon$ GREEK LUNATE EPSILON SYMBOL</pre>
+<p>Define compatibility mappings if the <a class="reference internal" href="#normalize-symbols">normalize-symbols</a> option is set:</p>
+<pre class="literal-block">\iftextalpha&#64;normalizeSymbols
+ \DeclareTextCommand{\textbetasymbol} {LGR}{\textbeta}
+ \DeclareTextCommand{\textthetasymbol} {LGR}{\texttheta}
+ \DeclareTextCommand{\textphisymbol} {LGR}{\textphi}
+ \DeclareTextCommand{\textpisymbol} {LGR}{\textpi}
+ \DeclareTextCommand{\textkappasymbol} {LGR}{\textkappa}
+ \DeclareTextCommand{\textrhosymbol} {LGR}{\textrho}
+ \DeclareTextCommand{\textThetasymbol} {LGR}{\textTheta}
+ \DeclareTextCommand{\textepsilonsymbol}{LGR}{\textepsilon}
+\fi</pre>
+</div>
+</div>
+<div class="section" id="diacritics">
+<h3><a class="toc-backref" href="#id14">Diacritics</a></h3>
+<p>Greek diacritics via “named” macros:</p>
+<pre class="literal-block">\DeclareTextAccentDefault{\accdasia}{LGR}
+\DeclareTextAccentDefault{\accpsili}{LGR}
+\DeclareTextAccentDefault{\acctonos}{LGR}
+\DeclareTextAccentDefault{\accvaria}{LGR}
+\DeclareTextAccentDefault{\accperispomeni}{LGR}
+\DeclareTextAccentDefault{\accdialytika}{LGR}
+%
+\DeclareTextAccentDefault{\accdasiaoxia}{LGR}
+\DeclareTextAccentDefault{\accdasiavaria}{LGR}
+\DeclareTextAccentDefault{\accdasiaperispomeni}{LGR}
+\DeclareTextAccentDefault{\accpsilioxia}{LGR}
+\DeclareTextAccentDefault{\accpsilivaria}{LGR}
+\DeclareTextAccentDefault{\accpsiliperispomeni}{LGR}
+\DeclareTextAccentDefault{\accdialytikatonos}{LGR}
+\DeclareTextAccentDefault{\accdialytikavaria}{LGR}
+\DeclareTextAccentDefault{\accdialytikaperispomeni}{LGR}</pre>
+<p>Symbol macros for the breathings:</p>
+<pre class="literal-block">\DeclareTextAccentDefault{\&lt;}{LGR}
+\DeclareTextAccentDefault{\&gt;}{LGR}</pre>
+<p>Postfix accents:</p>
+<pre class="literal-block">\DeclareTextSymbolDefault{\ypogegrammeni}{LGR} % &quot;small&quot; sub-iota
+\DeclareTextSymbolDefault{\prosgegrammeni}{LGR} % &quot;capital&quot; sub-iota</pre>
+<p>Other accents in LGR:</p>
+<pre class="literal-block">\DeclareTextAccentDefault{\accinvertedbrevebelow}{LGR} % INVERTED BREVE BELOW
+\DeclareTextAccentDefault{\textsubarch}{LGR} % tipa, Teubner name: ut
+\DeclareTextAccentDefault{\accbrevebelow}{LGR} % BREVE BELOW</pre>
+</div>
+<div class="section" id="auxiliary-macros">
+<h3><a class="toc-backref" href="#id15">Auxiliary macros</a></h3>
+<p><span class="docutils literal">\MakeUppercase</span> requires four internal commands:</p>
+<pre class="literal-block">\DeclareTextAccentDefault{\LGR&#64;accdropped}{LGR}
+\DeclareTextAccentDefault{\LGR&#64;accDialytika}{LGR}
+\DeclareTextAccentDefault{\LGR&#64;hiatus}{LGR}
+\DeclareTextSymbolDefault{\LGR&#64;ypogegrammeni}{LGR}</pre>
+</div>
+<div class="section" id="semicolon-as-erotimatiko">
+<h3><a class="toc-backref" href="#id16">semicolon as erotimatiko</a></h3>
+<p>The text command <span class="docutils literal">\textsemicolon</span> inserts <span class="docutils literal">\texterotimatiko</span>
+in LGR font encoding and a “normal” semicolon else:</p>
+<pre class="literal-block">\ProvideTextCommandDefault{\textsemicolon}{;}
+\ProvideTextCommand{\textsemicolon}{LGR}{\texterotimatiko}</pre>
+<p>The LGR font encoding maps “;” to a middle dot (ano teleia). With the
+<a class="reference internal" href="#keep-semicolon">keep-semicolon</a> option, the semicolon is made an active character and calls
+<span class="docutils literal">\textsemicolon</span>:</p>
+<pre class="literal-block">\iftextalpha&#64;keepSemicolon
+ \catcode`;=\active
+ \newcommand{;}{\textsemicolon}
+\fi</pre>
+<!-- References
+- - - - - - - - - - -->
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>