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authorKarl Berry <karl@freefriends.org>2013-07-17 22:12:47 +0000
committerKarl Berry <karl@freefriends.org>2013-07-17 22:12:47 +0000
commitd9add100de8f268f2b408533a41cc5624ef1ee7a (patch)
treea50a9317ff4e1bc15403820318ab44ae97e99d0a /Master/texmf-dist/doc/latex/greek-fontenc/README.html
parent989e69000a109aa206742cc979fb247b9294ef7a (diff)
greek-fontenc (17jul13)
git-svn-id: svn://tug.org/texlive/trunk@31220 c570f23f-e606-0410-a88d-b1316a301751
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diff --git a/Master/texmf-dist/doc/latex/greek-fontenc/README.html b/Master/texmf-dist/doc/latex/greek-fontenc/README.html
index 9a5344eb640..3a811d6cc83 100644
--- a/Master/texmf-dist/doc/latex/greek-fontenc/README.html
+++ b/Master/texmf-dist/doc/latex/greek-fontenc/README.html
@@ -47,41 +47,58 @@ punctuation may change in future versions.</p>
<div class="section" id="files">
<h1>Files</h1>
<dl class="docutils">
+<dt><a class="reference external" href="greek-fontenc.def">greek-fontenc.def</a></dt>
+<dd><p><a class="reference external" href="greek-fontenc.def.html">Common Greek font encoding definitions</a>.</p>
+</dd>
<dt><a class="reference external" href="lgrenc.def">lgrenc.def</a></dt>
-<dd><p>font encoding definitions for LGR</p>
+<dd><p>font encoding definitions for <a class="reference internal" href="#lgr">LGR</a>.</p>
+<p>The literate source <a class="reference external" href="lgrenc.def.txt">lgrenc.def.txt</a> was converted with <a class="reference external" href="http://pylit.berlios.de">PyLit</a> to TeX
+code and with <a class="reference external" href="http://docutils.sourceforge.net/rst.html">Docutils</a> to the documentation <a class="reference external" href="lgrenc.def.html">LGR Greek font encoding
+definitions</a>.</p>
<p>This file is the successor of the basic LGR encoding definition file which
comes with <a class="reference external" href="http://www.ctan.org/pkg/babel">babel</a>’s Greek support and <tt class="literal">lgrxenc.def</tt> from the <a class="reference external" href="http://www.ctan.org/pkg/lgrx">lgrx</a>
-bundle. It defines LICR macros for Greek characters that select
-pre-composed glyphs if possible and places the diacritics according to
-Greek typesetting rules else. Combined accents can be specified as
-backslash + transliteration (<tt class="literal"><span class="pre">\~&gt;\textalpha</span></tt>) or iteratively
-(<tt class="literal"><span class="pre">\~\&gt;\textalpha</span></tt>).</p>
+bundle.</p>
</dd>
-<dt><a class="reference external" href="lgrenc.def.txt">lgrenc.def.txt</a></dt>
-<dd><p>literate source (<a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> format)</p>
+<dt><a class="reference external" href="lgrenc-test.pdf">lgrenc-test.pdf</a></dt>
+<dd><p>test example, source <a class="reference external" href="lgrenc-test.tex">lgrenc-test.tex</a>,</p>
</dd>
-<dt><a class="reference external" href="lgrenc.def.html">lgrenc.def.html</a></dt>
-<dd><p>literate source (HTML format)</p>
+<dt><a class="reference external" href="greekhyperref.pdf">greekhyperref.pdf</a></dt>
+<dd><p><cite>Greek script in PDF metadata</cite>, source <a class="reference external" href="greekhyperref.tex">greekhyperref.tex</a></p>
+<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.</p>
</dd>
-<dt><a class="reference external" href="lgrenc-test.tex">lgrenc-test.tex</a></dt>
-<dd><p>test example</p>
+</dl>
+<p>Experimental files that are still in development and will eventually be
+moved to/merged with other packages:</p>
+<dl class="docutils">
+<dt><a class="reference external" href="xunicode-greek.sty">xunicode-greek.sty</a></dt>
+<dd><p><a class="reference external" href="xunicode-greek.sty.html">xunicode extension for Greek</a></p>
</dd>
-<dt><a class="reference external" href="lgrenc-test.pdf">lgrenc-test.pdf</a></dt>
-<dd><p>test output</p>
+<dt><a class="reference external" href="test-xunicode.tex">test-xunicode.tex</a></dt>
+<dd><p>Example for use of the experimental Greek LICR definitions with XeTeX.</p>
+</dd>
+<dt><a class="reference external" href="greek-euenc.def">greek-euenc.def</a></dt>
+<dd><p><a class="reference external" href="greek-euenc.def.html">Greek LICR definitions for XeTeX and LuaTeX</a></p>
+</dd>
+<dt><a class="reference external" href="test-euenc.tex">test-euenc.tex</a></dt>
+<dd><p>Example for use of the experimental Greek LICR definitions with XeTeX.</p>
+</dd>
+<dt><a class="reference external" href="lgr2licr.lua">lgr2licr.lua</a></dt>
+<dd><p><a class="reference external" href="lgr2licr.lua.html">LGR Transcription to Greek LICR transformation</a></p>
</dd>
</dl>
-<p>The literate source was converted with <a class="reference external" href="http://pylit.berlios.de">PyLit</a> to TeX and with <a class="reference external" href="http://docutils.sourceforge.net/rst.html">Docutils</a> to
-HTML format.</p>
</div>
<div class="section" id="installation">
<h1>Installation</h1>
<p>If possible, get this package from your distribution using its installation
manager.</p>
-<p>Otherwise, make sure LaTeX can find the file <cite>lgrenc.def</cite>:</p>
+<p>Otherwise, make sure LaTeX can find the files <tt class="literal">lgrenc.def</tt>,
+<tt class="literal"><span class="pre">greek-fontenc.def</span></tt> and eventually <tt class="literal"><span class="pre">xunicode-greek.sty</span></tt> and
+<tt class="literal"><span class="pre">greek-euenc.def</span></tt>:</p>
<ul class="simple">
-<li><p>Download and unpack <cite>greek-fontenc.zip</cite> or just download <a class="reference external" href="lgrenc.def">lgrenc.def</a>.</p></li>
-<li><p>Copy/Move/Link <tt class="literal">lgrenc.def</tt> to a suitable place in the <a class="reference external" href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=tds">TDS</a> and run
-<tt class="literal">texhash</tt>, or place it in the current working directory (e.g. for
+<li><p>Download and unpack <tt class="literal"><span class="pre">greek-fontenc.zip</span></tt>.</p></li>
+<li><p>Copy/Move/Link the files to a suitable place in the <a class="reference external" href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=tds">TDS</a> and run
+<tt class="literal">texhash</tt>, or place them in the current working directory (e.g. for
testing).</p></li>
</ul>
</div>
@@ -91,7 +108,22 @@ testing).</p></li>
(Latin) as default font encoding and LGR for Greek with</p>
<pre class="literal-block">\usepackage[LGR,T1]{fontenc}
</pre>
-<p>See <a class="citation-reference" href="#fntguide" id="id2">[fntguide]</a> for details and <a class="reference external" href="lgrenc-test.tex">lgrenc-test.tex</a> for an example.</p>
+<p>See <a class="citation-reference" href="#fntguide" id="id1">[fntguide]</a> for details and <a class="reference external" href="lgrenc-test.tex">lgrenc-test.tex</a> for an example.</p>
+<p>For XeTeX/LuaTeX, you can specify the EU1/EU2 encoding and
+load the experimental <tt class="literal"><span class="pre">xunicode-greek</span></tt>:</p>
+<pre class="literal-block">\usepackage[EU1]{fontenc} % XeTeX
+% \usepackage[EU2]{fontenc} % LuaTeX
+\usepackage{xunicode-greek}
+</pre>
+<p>or <tt class="literal"><span class="pre">greek-euenc.def</span></tt>:</p>
+<pre class="literal-block">\usepackage[EU1]{fontenc} % XeTeX
+% \usepackage[EU2]{fontenc} % LuaTeX
+\makeatletter
+\input{greek-euenc.def}
+\makeatother
+</pre>
+<p>However, XeTeX/LuaTeX usage details are very likely to change in the
+future!!!</p>
</div>
<div class="section" id="greek-text-font-encodings">
<h1>Greek text font encodings</h1>
@@ -100,7 +132,7 @@ Greek letters and symbols are also defined in the Unicode-based font
encodings EU1 (XeTeX), EU2 (LuaTeX) and PU (<a class="reference external" href="http://www.ctan.org/pkg/hyperref">hyperref</a>).</p>
<div class="section" id="t7">
<h2>T7</h2>
-<p>The <a class="citation-reference" href="#encguide" id="id4">[encguide]</a> reserves the name T7 for a Greek <cite>standard font encoding</cite>.
+<p>The <a class="citation-reference" href="#encguide" id="id3">[encguide]</a> reserves the name T7 for a Greek <cite>standard font encoding</cite>.
However, up to now, there is no agreement on an implementation because the
restrictions for general text encodings are too severe for typesetting
polytonic Greek.</p>
@@ -115,7 +147,7 @@ is facilitated by the <a class="reference external" href="http://www.ctan.org/pk
<p>The LGR font encoding allows to access Greek characters via an ASCII
transliteration. This enables simple input with a Latin keyboard.
Characters with diacritics can be selected by ligature definitions in the
-font (see <a class="citation-reference" href="#greek-usage" id="id5">[greek-usage]</a>, <a class="citation-reference" href="#teubner-doc" id="id6">[teubner-doc]</a>, <a class="citation-reference" href="#cbfonts" id="id7">[cbfonts]</a>).</p>
+font (see <a class="citation-reference" href="#greek-usage" id="id4">[greek-usage]</a>, <a class="citation-reference" href="#teubner-doc" id="id5">[teubner-doc]</a>, <a class="citation-reference" href="#cbfonts" id="id6">[cbfonts]</a>).</p>
<p>A major drawback of the transliteration is, that you cannot access Latin
letters if LGR is the active font encoding (e.g. in documents or parts of
documents given the <cite>Babel</cite> language <tt class="literal">greek</tt> or <tt class="literal">polutionikogreek</tt>).
@@ -127,48 +159,192 @@ Unicode (with XeTeX or LuaTeX).</p>
<div class="section" id="lgi">
<h2>LGI</h2>
<p>The ‘Ibycus’ fonts from the package <a class="reference external" href="http://www.ctan.org/pkg/ibygrk">ibygrk</a> implement an alternative
-transliteration scheme (also explained in <a class="citation-reference" href="#babel-patch" id="id8">[babel-patch]</a>).
+transliteration scheme (also explained in <a class="citation-reference" href="#babel-patch" id="id7">[babel-patch]</a>).
It is currently not supported by <cite>greek-fontenc</cite>.</p>
<p>The font encoding file <tt class="literal">lgienc.def</tt> from <a class="reference external" href="http://www.ctan.org/pkg/ibycus-babel">ibycus-babel</a> provides a basic
-setup (without LICR macros or composite definitions).</p>
+setup (without any LICR macros or composite definitions).</p>
+</div>
+</div>
+<div class="section" id="greek-licr-macro-names">
+<h1>Greek LICR macro names</h1>
+<p>This package provides LaTeX internal character representations (LICR macros)
+for Greek letters and diacritics. Macro names were selected based on the
+following considerations:</p>
+<p>The <a class="reference internal" href="#fntguide">fntguide</a> (section 6.4 Naming conventions) recommends:</p>
+<blockquote>
+<p>Where possible, text symbols should be named as <tt class="literal">\text</tt> followed
+by the Adobe glyph name: for example <tt class="literal">\textonequarter</tt> or
+<tt class="literal">\textsterling</tt>. Similarly, math symbols should be named as
+<tt class="literal">\math</tt> followed by the glyph name, for example
+<tt class="literal">\mathonequarter</tt> or <tt class="literal">\mathsterling</tt>.</p>
+</blockquote>
+<p>The <a class="reference external" href="http://www.adobe.com/devnet-archive/opentype/archives/aglfn.txt">Adobe Glyph List For New Fonts</a> has names for many glyphs in the
+<cite>Greek and Coptic</cite> Unicode block, but not for <cite>Greek extended</cite>. The <a class="reference external" href="http://partners.adobe.com/public/developer/en/opentype/glyphlist.txt">Adobe
+Glyph List</a> (for existing fonts) lists additional glyph names used in older
+fonts. As these are not intened for further active use, the latter are not
+considered in the name choice.</p>
+<div class="section" id="proposals">
+<h2>Proposals</h2>
+<ul>
+<li><p>If there exists a math-mode macro for a symbol, form the corresponding text
+macro by prepending <tt class="literal">text</tt>?</p>
+<dl class="docutils">
+<dt>Example:</dt>
+<dd><p>The glyph name for the GREEK SMALL LETTER FINAL SIGMA is <tt class="literal">sigma1</tt>,
+the corresponding math-macro is <tt class="literal">\varsigma</tt>. The text symbol could be
+made available as <tt class="literal">\textvarsigma</tt>.</p>
+</dd>
+<dt>Problems:</dt>
+<dd><p><tt class="literal">\varepsilon</tt> and <tt class="literal">\varphi</tt> math macros map to characters named
+“GREEK SMALL <strong>LETTER</strong> …”, while <tt class="literal">\\vartheta</tt>, <tt class="literal">\\varkappa</tt>,
+<tt class="literal">\\varrho</tt>, and <tt class="literal">\\varpi</tt> math macros map to “GREEK … <strong>SYMBOL</strong>”
+Unicode characters.</p>
+<p>In Greek text, these variants are interchangeable. The LGR font encoding
+does not contain slots for “symbol” glyph variants. In some Greek fonts,
+GREEK SMALL LETTERS use glyph variants resembling the corresponding
+GREEK SYMBOL Unicode character’s reference glyph.</p>
+</dd>
+</dl>
+</li>
+<li><p>Derive macro names from Unicode names?</p>
+<p>The <a class="reference external" href="http://www.unicode.org/Public/UNIDATA/NamesList.txt">Unicode names list</a> provides standardized descriptive names for all
+Unicode characters that use only capital letters of the Latin alphabet.
+While not suited for direct use in a LICR macros, they can be either</p>
+<ol class="loweralpha simple">
+<li><p>used as inspiration for new LICR macro names or</p></li>
+<li><p>converted to LICR macro names via a defined set of transformation rules.</p></li>
+</ol>
+<dl class="docutils">
+<dt>Example:</dt>
+<dd><p><tt class="literal">\textfinalsigma</tt> or just <tt class="literal">\finalsigma</tt> as a more descriptive name
+for GREEK SMALL LETTER FINAL SIGMA derived via the rules:</p>
+<ul class="simple">
+<li><p>drop “LETTER” if the name remains unique,</p></li>
+<li><p>drop “GREEK” if the name remains unique,</p></li>
+<li><p>use capitalized name for capital letters, lowercase for “SMALL” letters
+and drop “SMALL”,</p></li>
+<li><p>concatenate</p></li>
+</ul>
+</dd>
+</dl>
+</li>
+<li><p>Omit the “text” prefix for macros that do not have a math counterpart?</p>
+<dl class="docutils">
+<dt>Pro:</dt>
+<dd><ul class="simple">
+<li><p>Simpler,</p></li>
+<li><p>ease of use (less typing, better readability of source text),</p></li>
+<li><p>many established text macro names without “text”,</p></li>
+<li><p>there are examples of encoding-specific macros
+without the <tt class="literal">text</tt>-prefix, especially for letters,</p>
+<dl class="field-list simple">
+<dt>T1</dt>
+<dd><p><tt class="literal">\AE \DH \DJ \L \NG \OE \O \SS \TH \ae \dh \dj \guillemotleft</tt>
+<tt class="literal">\guillemotright \guilsinglleft \guilsinglright \i \j \l \ng</tt>
+<tt class="literal">\oe \o \quotedblbase \quotesinglbase \ss \th</tt> (also in OT1)</p>
+</dd>
+<dt>T2*</dt>
+<dd><p><tt class="literal">\CYR*</tt> and <tt class="literal">\cyr*</tt></p>
+</dd>
+<dt>HE8</dt>
+<dd><p><tt class="literal">\heb*</tt> or no prefix</p>
+</dd>
+<dt>PU</dt>
+<dd><p>short descriptive names in the arabic part (<tt class="literal">puarenc.def</tt>)</p>
+</dd>
+</dl>
+</li>
+<li><p><tt class="literal">text</tt> prefix does <strong>not</strong> mark a macro as encoding-specific or
+“inserting a glyph”. There are e.g. font-changing macros (<tt class="literal">\textbf</tt>,
+<tt class="literal">\textit</tt>) and encoding-changing macros (<tt class="literal">\textgreek</tt>,
+<tt class="literal">\textcyr</tt>).</p></li>
+</ul>
+</dd>
+<dt>Contra:</dt>
+<dd><ul class="simple">
+<li><p>Less consistent.</p></li>
+<li><p><tt class="literal">text</tt> prefix marks a macro as confined to text mode.</p></li>
+</ul>
+</dd>
+<dt>Conclusion:</dt>
+<dd><p>To avoid name clashes, this package uses the <tt class="literal">text</tt> prefix
+for symbols. Aliases (short forms, compatibility defs, etc.) can be
+defined in packages.</p>
+</dd>
+</dl>
+</li>
+</ul>
</div>
+<div class="section" id="how-to-name-accent-macros">
+<h2>How to name <em>accent macros</em>?</h2>
+<ul>
+<li><p>standard accent macros (<tt class="literal">\DeclareTextAccent</tt> definitions in
+<tt class="literal"><span class="pre">latex/base/...</span></tt>) are one-symbol macros (<tt class="literal">\' \&quot; ... \u \v ...</tt>) .</p></li>
+<li><p><tt class="literal">tipa.sty</tt>, <tt class="literal">xunicode</tt>, and <a class="reference external" href="http://www.ctan.org/pkg/unicode">ucs</a> use the “text” prefix also for accents.</p>
+<p>However, the <a class="reference external" href="http://www.adobe.com/devnet-archive/opentype/archives/aglfn.txt">Adobe Glyph List For New Fonts</a> maps, e.g., “tonos” and
+“dieresistonos” to 0384 GREEK TONOS and 0385 GREEK DIALYTIKA TONOS, hence
+<cite>texttonos</cite> and <cite>textdiaresistonos</cite> should be spacing characters.</p>
+</li>
+<li><p>textcomp (ts1enc.def) defines <tt class="literal"><span class="pre">\capital...</span></tt> accents (i.e. without
+<tt class="literal">text</tt> prefix).</p></li>
+<li><p>Use a common prefix <tt class="literal"><span class="pre">\textaccent...</span></tt>, <tt class="literal"><span class="pre">\accent...</span></tt>,
+or just <tt class="literal"><span class="pre">\acc...</span></tt> (cf <tt class="literal">\&#64;tabacckludge</tt>)?</p></li>
+</ul>
+<p>Currently, <cite>greek-fontenc</cite> uses for diacritics:</p>
+<ul class="simple">
+<li><p>Greek names like in Unicode, and ucsencs.def</p></li>
+<li><p>The prefix “acc” to distinguish the macros as <cite>TextAaccent</cite> and reduce the
+risc of name clashes.</p></li>
+<li><p>For the end-user “symbol macros” (<tt class="literal">\~ \' \` \&quot; \&lt; \&gt;</tt>) are provided.</p></li>
+</ul>
</div>
<div class="section" id="references">
-<h1>References</h1>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id2">[fntguide]</a></dt>
+<h2>References</h2>
+<p>An alternative, more complete set of short mnemonic character names is
+the <a class="reference external" href="http://www.w3.org/TR/xml-entity-names/">XML Entity Definitions for Characters</a> W3C Recommendation from
+01 April 2010.</p>
+<p>For glyph names of the LGR encoding see e.g. <tt class="literal">CB.enc</tt> by Apostolos
+Syropoulos and <tt class="literal"><span class="pre">xl-lgr.enc</span></tt> from the <a class="reference external" href="http://www.ctan.org/pkg/libertine-legacy">libertine</a> (legacy) package.
+<tt class="literal">lgr.cmap</tt> provides a mapping to Unicode characters.</p>
+<p>A full set of <tt class="literal">\text*</tt> symbol macros is defined in <tt class="literal">ucsencs.def</tt>
+from the <a class="reference external" href="http://www.ctan.org/pkg/unicode">ucs</a> package.</p>
+<p>Aliases from <tt class="literal">puenc.def</tt> ensure that the <a class="reference external" href="http://www.ctan.org/pkg/hyperref">hyperref</a> package can convert
+Greek text in “LICR encoding” to a PDF-string (utf-8 encoded input is used
+as-is).</p>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id1">[fntguide]</a></dt>
<dd id="fntguide">
<p class="first last">LaTeX3 Project Team, <cite>LaTeX2ε font selection</cite>, 2005.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/fntguide.pdf">http://mirror.ctan.org/macros/latex/doc/fntguide.pdf</a></p>
</dd>
</dl>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id4">[encguide]</a></dt>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id3">[encguide]</a></dt>
<dd id="encguide">
<p class="first last">Frank Mittelbach, Robin Fairbairns, Werner Lemberg,
LaTeX3 Project Team, <cite>LaTeX font encodings</cite>, 2006.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/encguide.pdf">http://mirror.ctan.org/macros/latex/doc/encguide.pdf</a></p>
</dd>
</dl>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id5">[greek-usage]</a></dt>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id4">[greek-usage]</a></dt>
<dd id="greek-usage">
<p class="first last">Apostolos Syropoulos, <cite>Writing Greek with the greek option
of the babel package</cite>, 1997.
<a class="reference external" href="http://www.tug.org/texlive/Contents/live/texmf-dist/doc/generic/babel/greek-usage.pdf">http://www.tug.org/texlive/Contents/live/texmf-dist/doc/generic/babel/greek-usage.pdf</a></p>
</dd>
</dl>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id7">[cbfonts]</a></dt>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id6">[cbfonts]</a></dt>
<dd id="cbfonts">
<p class="first last">Claudio Beccari, <cite>The CB Greek fonts</cite>, Εὔτυπον, τεῦχος № 21, 2008.
<a class="reference external" href="http://www.eutypon.gr/eutypon/pdf/e2008-21/e21-a01.pdf">http://www.eutypon.gr/eutypon/pdf/e2008-21/e21-a01.pdf</a></p>
</dd>
</dl>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id6">[teubner-doc]</a></dt>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id5">[teubner-doc]</a></dt>
<dd id="teubner-doc">
<p class="first last">Claudio Beccari, <tt class="literal">teubner.sty</tt>
<cite>An extension to the greek option of the babel package</cite>, 2011.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/contrib/teubner/teubner-doc.pdf">http://mirror.ctan.org/macros/latex/contrib/teubner/teubner-doc.pdf</a></p>
</dd>
</dl>
-<dl class="citation"><dt class="label"><a class="fn-backref" href="#id8">[babel-patch]</a></dt>
+<dl class="citation"><dt class="label"><a class="fn-backref" href="#id7">[babel-patch]</a></dt>
<dd id="babel-patch">
<p class="first last">Werner Lemberg, <cite>Unicode support for the Greek LGR
encoding</cite> Εὔτυπον, τεῦχος № 20, 2008.
@@ -177,5 +353,6 @@ encoding</cite> Εὔτυπον, τεῦχος № 20, 2008.
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