最新的希腊文排版指示/建议方法是什么？

Question

我通常使用英文键盘打字，但输入希腊字母时我会使用希腊键盘。我通过引擎有自己的解决方法pdfLaTeX，但随着 LaTeX 的发展，似乎（至少对我来说）焦点越来越倾向于XeLaTeXand/orLuaTeX引擎。我想切换到这些引擎，但过去我使用希腊字体时运气不佳（更像是灾难）。所以，我想知道如何过渡，以及什么是最近/现代的“官方”希腊语排版方式中最好的方式。

以下是我通常需要的：

• 交替使用希腊语和英语键盘，无需指定语言更改
• 在数学模式下输入希腊文（与英文一起）
• 在文本模式下输入希腊文（与英文一起）
• 完全用希腊语（偶尔用英语）输入一份文件
• （可选）能够输入希腊分号（άνω τελεία / ano teleia / 大点）：unicode ->U+0387
• （可选）使用希腊文字定义命令，例如\newcommand{\εντολή}{εντολή}

（好吧，最后一个非常牵强，但如果可能的话就太酷了。）

我知道特定的数学环境（例如proof或）abstract可能需要在序言中手动更改，但这没问题，因为这是一次性的事情。

为了保险起见，我将在这里发布我迄今为止使用的代码，以供参考。当然，前几行是重点。请注意，此代码仅适用于pdfLaTeX--- ，魔术注释除外：

% !TEX program = pdflatex
% !TEX TS-program = pdflatex

\documentclass[11pt]{amsart}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[LGR,T1]{fontenc} %%%%%%%%%%%%%%%%
\usepackage[utf8]{inputenc} %%%%%%%%%%%%%%%%%
\usepackage{lmodern} %%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[greek,english]{babel} %%%%%%%%%%% The latter language is the default. DO NOT change the language order.
\usepackage{alphabeta} %%%%%%%%%%%%%%%%%%%%%%
\usepackage{textcase} %%%%%%%%%%%%%%%%%%%%%%% This is needed when amsart class is loaded to avoid errors in the title.
\usepackage[style=greek]{csquotes} %%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% This code redefines the name macros.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Comment the following lines if this not needed.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addto\captionsenglish{%%%%%%%%%%%%%%%%%%%%%% The babel necessitates the use of \addto\caption<language>
    \renewcommand*\abstractname{{Περίληψη}}%% [article/report class]
    \renewcommand*\appendixname{{Παράρτημα}}%
    \renewcommand*\bibname{{Βιβλιογραφία}}%%% [book/report class] %% does not work with biblatex package
    \renewcommand*\chaptername{{Κεφάλαιο}}%%% [book/report class]
    \renewcommand*\contentsname{{Περιεχόμενα}}%
    \renewcommand*\figurename{{Εικόνα}}%%%%%%
    \renewcommand*\indexname{{Ευρετήριο}}%%%%
    \renewcommand*\listfigurename{{Περιοχόμενα Εικόνων}}%
    \renewcommand*\listtablename{{Περιεχόμενα Πινάκων}}%
    \renewcommand*\partname{{Μέρος}}%%%%%%%%%
    \renewcommand*\prefacename{{Πρόλογος}}%%%
    \renewcommand*\proofname{{Απόδειξη}}%%%%%
    \renewcommand*\refname{{Αναφορές}}%%%%%%% [article class] %% does not work with biblatex package
    \renewcommand*\tablename{{Πίνακας}}%%%%%%
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Optional definitions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newtheorem{theorem}{Θεώρημα}[section] %%%%%%
\newtheorem{lem}[theorem]{Λήμμα} %%%%%%%%%%%%
\newtheorem{prop}[theorem]{Πρόταση} %%%%%%%%%
\newtheorem{cor}[theorem]{Πόρισμα} %%%%%%%%%%
\newtheorem{defin}[theorem]{Ορισμός} %%%%%%%%
\newtheorem{rem}[theorem]{Σημείωση} %%%%%%%%%
\newtheorem{rems}[theorem]{Σημειώσεις} %%%%%%
\newtheorem{ex}[theorem]{Πράδειγμα} %%%%%%%%%