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diff --git a/Master/texmf-dist/doc/latex/lgrx/alphabeta-test.tex b/Master/texmf-dist/doc/latex/lgrx/alphabeta-test.tex new file mode 100644 index 00000000000..2595de334ca --- /dev/null +++ b/Master/texmf-dist/doc/latex/lgrx/alphabeta-test.tex @@ -0,0 +1,194 @@ +\documentclass{article} +\usepackage{cmap} % fix search and cut-and-paste in PDF +\usepackage{parskip} +\usepackage{textcomp} +\usepackage{amsmath} +\usepackage{fixmath} +\usepackage{lmodern} +% \usepackage{gfsdidot} +% \usepackage{kerkis} +\usepackage[T1]{fontenc} +\usepackage[utf8]{inputenc} +\usepackage[colorlinks=true,linkcolor=blue,urlcolor=blue]{hyperref} +\hypersetup{unicode=true} +\usepackage{bookmark} +% No section numbers but PDF bookmarks for sections +\setcounter{secnumdepth}{0} + + +% load alphabeta after math setup and encoding setup! +\usepackage{alphabeta} + +\begin{document} + +\section{Test the \emph{alphabeta} package} + +With the \emph{alphabeta} package, you can write Greek letters ``by name" in +both, text and math. The mode determines whether the letters are taken +from the text or math font. Just like Latin letters, the Greek counterparts +are by default italic in math (capital letters upright without +\emph{fixmath} or \emph{isomath}) and upright in text: + +Text: L \Lambda{} l \lambda, math: $ L \ \Lambda \ l \ \lambda $, +emphasized: \emph{L \Lambda{} l \lambda} + +\section{Greek alphabet} + +Greek letters via Latin transscription in LGR font encoding: + +\begin{quotation} + \TextGreek{A B G D E Z H J I K L M N X O P R S T U F Q Y W}\\ + \TextGreek{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} +\end{quotation} + +Greek letters via default macros in LGR font encoding: + +\begin{quotation} \TextGreek{ + \Alpha{} \Beta{} \Gamma{} \Delta{} \Epsilon{} \Zeta{} \Eta{} \Theta{} + \Iota{} \Kappa{} \Lambda{} \Mu{} \Nu{} \Xi{} \Omicron{} \Pi{} \Rho{} + \Sigma{} \Tau{} \Upsilon{} \Phi{} \Chi{} \Psi{} \Omega{} + + \alpha{} \beta{} \gamma{} \delta{} \epsilon{} \zeta{} \eta{} \theta{} + \iota{} \kappa{} \lambda{} \mu{} \nu{} \xi{} \omicron{} \pi{} \rho{} + \sigma{} \varsigma{} \tau{} \upsilon{} \phi{} \chi{} \psi{} \omega{} + } +\end{quotation} + +Greek letters via default macros in other font encoding (here T1): + +\begin{quotation} + \Alpha{} \Beta{} \Gamma{} \Delta{} \Epsilon{} \Zeta{} \Eta{} \Theta{} + \Iota{} \Kappa{} \Lambda{} \Mu{} \Nu{} \Xi{} \Omicron{} \Pi{} \Rho{} + \Sigma{} \Tau{} \Upsilon{} \Phi{} \Chi{} \Psi{} \Omega{} + + \alpha{} \beta{} \gamma{} \delta{} \epsilon{} \zeta{} \eta{} \theta{} + \iota{} \kappa{} \lambda{} \mu{} \nu{} \xi{} \omicron{} \pi{} \rho{} + \sigma{} \varsigma{} \tau{} \upsilon{} \phi{} \chi{} \psi{} \omega{} +\end{quotation} + + +Greek letters in math (with ``fixmath") (there are no math macros for Greek +letters wich exist with similar shape in the Latin alphabet): + +\[ + % \Alpha{} \Beta{} + \Gamma{} \Delta{} + % \Epsilon{} \Zeta{} \Eta{} + \Theta{} + % \Iota{} \Kappa{} + \Lambda{} + % \Mu{} \Nu{} + \Xi{} + % \Omicron{} + \Pi{} + % \Rho{} + \Sigma{} + % \Tau{} + \Upsilon{} \Phi{} + % \Chi{} + \Psi{} \Omega{} +\] +\[ + \alpha{} \beta{} \gamma{} \delta{} \epsilon{} \zeta{} \eta{} \theta{} + \iota{} \kappa{} \lambda{} \mu{} \nu{} \xi{} + % \omicron{} + \pi{} \rho{} + \sigma{} \varsigma{} \tau{} \upsilon{} \phi{} \chi{} \psi{} \omega{} +\] + +So you can easily write a single Greek symbol (like \Psi{} or \mu{}) +or \lambda\omicron\gamma\omicron\varsigma{} in non-Greek text as well as +ISO-conforming formulas with an upright pi symbol like +$A = \text{\pi} r^2$ instead of $A = \pi r^2$. + +\section{ + \TextGreek{\<\Epsilon\lambda\lambda\eta\nu\iota\kappa\'\alpha{} (Ἑλληνικά)} + in PDF strings} + +With the alphabeta package, you get Greek letters in both, the document body +and PDF metadata generated by hyperref if the input uses Unicode literals or +macros. Wrapping in \verb+\TextGreek+ ensures the right placement of the +accents and breathings (before, not above capital letters). +As the hyperref packages "PU" encoding uses the \verb+\text...+ macros, +some diacritics are missing in the PDF data if the short macros are used +(dasia dropped at the start of the heading in the PDF toc). + +The generic macros result in warnings like +% +\begin{verbatim} +Package hyperref Warning: Token not allowed in a PDF string (Unicode): +(hyperref) removing `\TextOrMath ' on input line 109. + + +Package hyperref Warning: Token not allowed in a PDF string (Unicode): +(hyperref) removing `\mathlambda' on input line 109. +\end{verbatim} +% +that can savely be ignored. + +\subsection{Greek in math $\sin^2\alpha$} + +Ensure Greek in math continues to work in both text and PDF metadata: +$\Gamma = \frac{\sin\alpha}{\cos{\beta}}$. + +\section{Limitations} + +\subsection{Kerning} + +There is no kerning between Greek letters, if the font encoding is not LGR: +compare \TextGreek{AUA} (LGR) to \textAlpha\textUpsilon\textAlpha (T1). +Because of this (and for proper hyphenation), use of the Babel package and +correct language setting is recommended for Greek quotes. + +\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): +% +\TextGreek{\<'\alpha{} \Dasia\Tonos\alpha{} \DasiaOxia\alpha{}} \\ +\DasiaOxia\alpha + +Diacritics (except the dialytika) should placed +before capital letters and dropped with MakeUppercase: + +\TextGreek{ +\<{\alpha} \>{\epsilon} \"'{\iota} \`>{\eta} +\'<{\omicron} \~<{\upsilon} \~>{\omega} +\\ +\<{\Alpha} \>{\Epsilon} \"'{\Iota} \`>{\Eta} +\'<{\Omicron} \~<{\Upsilon} \~>{\Omega} +\\ +\MakeUppercase{% + \<{\alpha} \>{\epsilon} \"'{\iota} \`>\eta{} + \'<{\omicron} \~<{\upsilon} \~>{\omega} +}} + +However, this does not work with the generic macros (yet), as there are no +TextCompositeCommand declarations for them in lgrxenc.def. +TODO: add them in alphabeta.sty. + +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 strange effects +with MakeUppercase: + +\MakeUppercase{% + \<{\alpha} \>{\epsilon} \"'{\iota} \`>\eta{} + \'<{\omicron} \~<{\upsilon} \~>{\omega} +} + +The \verb+\TextGreek+ TextCommandDefault ensures that the argument is +typeset with an LGR encoded font. This works with the Babel transscription +(\TextGreek{logos}), keeps kerning (if the kerning pair is inside the +argument, \TextGreek{\Alpha\Upsilon\Alpha}), and allows iterative accent +macros where pre-composed characters are selected +(\TextGreek{\DasiaOxia\alpha} or \TextGreek{\Dasia\Tonos\alpha}). + +The Unicode definitions in lgrenc.dfu use this to fix the handling of +diacritics in pre-composed accented Unicode literals (see greek-unicode.pdf). + +\end{document} |