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authorKarl Berry <karl@freefriends.org>2012-05-08 22:52:38 +0000
committerKarl Berry <karl@freefriends.org>2012-05-08 22:52:38 +0000
commitd189ec20694dbb800e75ab2bf0a80f3af44c738c (patch)
tree7f159a9a5123046351d6e262edac1d15f1912e74 /Master/texmf-dist/doc/latex/lgrx/textalpha-test.tex
parent117d3cf753beae31aec295e409a34c2bc1353613 (diff)
new latex package lgrx (8may12)
git-svn-id: svn://tug.org/texlive/trunk@26262 c570f23f-e606-0410-a88d-b1316a301751
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+\documentclass{article}
+\usepackage{cmap} % fix search and cut-and-paste in PDF
+\usepackage{lmodern}
+\usepackage{parskip}
+\usepackage{textcomp}
+\usepackage{textalpha}
+\usepackage[T1]{fontenc}
+\usepackage[utf8]{inputenc}
+\usepackage[colorlinks=true,linkcolor=blue,urlcolor=blue]{hyperref}
+\hypersetup{unicode=true}
+\usepackage{bookmark}
+
+\newcommand{\LGR}{\fontencoding{LGR}\selectfont}
+\newcommand{\Latin}{\fontencoding{T1}\selectfont}
+
+\providecommand{\greektext}{%
+ \fontencoding{LGR}\selectfont\def\encodingdefault{LGR}%
+}
+\providecommand*{\textgreek}[1]{\leavevmode{\greektext #1}}
+
+\DeclareTextCommand{\TextGreek}{LGR}[1]{#1}
+\DeclareTextCommandDefault{\TextGreek}[1]{\textgreek{#1}}
+
+\pagestyle{empty}
+\setcounter{secnumdepth}{0}
+
+\begin{document}
+
+\subsection{Greek alphabet}
+
+Greek letters via Latin transscription in LGR font encoding:
+
+\LGR
+\MakeUppercase{a b g d e z h j i k l m n x o p r s t u f q y w}
+
+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
+
+\Latin
+Greek letters via default macros in other font encoding (here T1):
+
+\textAlpha{} \textBeta{} \textGamma{} \textDelta{} \textEpsilon{}
+\textZeta{} \textEta{} \textTheta{} \textIota{} \textKappa{}
+\textLambda{} \textMu{} \textNu{} \textXi{} \textOmicron{} \textPi{}
+\textRho{} \textSigma{} \textTau{} \textUpsilon{} \textPhi{}
+\textChi{} \textPsi{} \textOmega{}
+
+
+\textalpha{} \textbeta{} \textgamma{} \textdelta{} \textepsilon{}
+\textzeta{} \texteta{} \texttheta{} \textiota{} \textkappa{}
+\textlambda{} \textmu{} \textnu{} \textxi{} \textomicron{} \textpi{}
+\textrho{} \textsigma{} \textvarsigma{} \texttau{} \textupsilon{}
+\textphi{} \textchi{} \textpsi{} \textomega{}
+
+So you can easily write a single Greek symbol (like \textPsi{} or
+\textmu{}) or
+\textlambda\textomicron\textgamma\textomicron\textvarsigma{} in
+non-Greek text or ISO-conforming formulas with an upright pi symbol
+like $A = \mbox{\textpi} r^2$ instead of $A = \pi r^2$.
+
+However, kerning is broken in other font encodings: compare
+\textgreek{AUA} (LGR) to \textAlpha\textUpsilon\textAlpha (T1).
+Because of this (and for proper hyphenation), use of babel and correct
+language setting is recommended for Greek quotes.
+
+\subsection{\textlambda\textomicron\textgamma\textomicron\textvarsigma{},
+ λογος and \TextGreek{logos}}
+
+The subsection title above uses: text* macros, Unicode input and the LGR
+transcription for the Greek word \TextGreek{logos}. The last variant (Latin
+transscription) is written in Latin letters in the PDF bookmark.
+
+On 2010-11-05, Heiko Oberdiek wrote in comp.text.tex:
+
+\begin{quote}
+ \textbackslash pdfstringdef (converting TeX code to PDF strings for
+ bookmarks) supports NFSS2 and needs active characters. Encoding
+ stuff based on the internal font machinery of TeX (letters with
+ catcode 11 or 12, ligatures) does not work, because the strings
+ don't reach TeX's stomach.
+\end{quote}
+
+\subsection{Diacritics}
+
+In LGR encoding, shortcuts as well as named macros are set up for use with
+the Latin transcription.
+
+Composition of diacritics (like \verb+\Dasia\Tonos+) fails in other
+font encodings. Long names (like \verb+\DasiaOxia+) work, however they
+do not select precomposed characters (the difference becomes obvious
+if you drag-and-drop text from the PDF version of this document):
+%
+LGR: \LGR \<'a \Dasia\Tonos a \DasiaOxia a \DasiaOxia\textalpha \Latin \\
+Latin: \DasiaOxia\textalpha
+
+Diacritics (except the dialytika) should placed
+before capital letters and dropped with MakeUppercase:
+
+\LGR
+\<{\textalpha} \>{\textepsilon} \"'{\textiota} \`>{\texteta}
+\'<{\textomicron} \~<{\textupsilon} \~>{\textomega}
+\\
+\<{\textAlpha} \>{\textEpsilon} \"'{\textIota} \`>{\textEta}
+\'<{\textOmicron} \~<{\textUpsilon} \~>{\textOmega}
+\\
+\MakeUppercase{%
+ \<{\textalpha} \>{\textepsilon} \"'{\textiota} \`>\texteta{}
+ \'<{\textomicron} \~<{\textupsilon} \~>{\textomega}
+}
+
+\Latin However, in other font encodings, this does not work:
+
+No kerning: (\textgreek{ΑΥΑ} vs. ΑΥΑ), misplaced multiple (\textgreek{ἅ} vs.
+ἅ) or Titlecase accents (\textgreek{Ά Έ Ή Ί} vs. Ά Έ Ή Ί) and errors with
+MakeUppercase.
+
+Therefore, we would need to define macros for all Unicode characters
+that we want to access without explicit font-encoding change.
+
+Alternative: A \verb+\TextGreek+ TextCommandDefault that wraps the argument in
+the equivalent of Babel's \verb+\textgreek+ with an LGR TextCommand that
+just passes the argument. This is done in the preamble of this document.
+
+This works with the Babel transscription (\TextGreek{logos}),
+keeps kerning (if the kerning pair is inside the argument,
+\TextGreek{\textAlpha\textUpsilon\textAlpha}),
+and allows iterative accent macros where pre-composed characters are
+selected (\TextGreek{\DasiaOxia\textalpha} or
+\TextGreek{\Dasia\Tonos\textalpha}).
+
+TODO: Use this definition for multi-macro definitions in the Unicode
+definition file?
+
+\end{document}