Tikz-Calendar：如何处理日期数组？

Question

写下这些内容是很乏味的if (equals=2021-05-25)。

那么就不要。看一下/pgf/calendar/equals-strip将参数作为#1/#2并转发#1到的键equals。后面的第二部分/仅用于将\items 放在后面。

我们可以使用扩展后的列表\teachingdays并将其作为列表输入到equals-strip：

if (equals-strip/.list/.expand once=\teachingdays) [teaching day]

那么宏\teachingdays可以简单地为：

\newcommand*\teachingdays{%
  2021-05-11/Intro,
  2021-05-18/Basics I,
  2021-05-25/Basics II,
  …
}

这应该会使使用calendarTikZ/PGF 库变得更加容易。

代码

\documentclass[12pt]{article}
\usepackage{hyperref}
\hypersetup{colorlinks=true, citecolor=blue}
\usepackage{tikz}
\usetikzlibrary{calc,calendar}

%%% Shorthand w- for Weekday
\expandafter\def\csname pgfcalendar@shorthand@w-\endcsname{\ifcase\pgfcalendarcurrentweekday M\or T\or W \or T\or F\else S\fi}

%%% equal key that strips /<text>
\pgfqkeys{/pgf/calendar}{equals-strip/.style args={#1/#2}{equals={#1}}}

%%% A simple parser for <year>-<month>-<day> so we can use shorthands outside of a calendar
\def\pgfcalendarsimpleparse#1-#2-#3\relax{%
  \def\pgfcalendarcurrentyear{#1}%
  \def\pgfcalendarcurrentmonth{#2}%
  \def\pgfcalendarcurrentday{#3}}

%%% hyperling node
\tikzset{
    hyperlink node/.style={
        alias=@hyper,
        append after command={
            let \p1 = (@hyper.north west),
                \p2 = (@hyper.south east),
                \n1 = {\x2-\x1}, \n2 = {\y1-\y2} in
            node [inner sep=+0pt, outer sep=+0pt, anchor=center, at=(@hyper)] {\hyperlink{ref-#1}{\XeTeXLinkBox{\phantom{\rule{\n1}{\n2}}}}}}}}

\newcommand*{\calrow}[1]{\node[draw,black, minimum width=7*\csname tikz@lib@cal@xshift\endcsname]{\textbf{#1}};}

\newcommand{\calperiod}[1]{%
    \calendar [
      dates=2021-#1-01 to 2021-#1-last,
      day text={\%d=},
      %
      % we name every weekday node (even though we only need the Thursday)
      weekday node/.style={
        black, name=weekday-\pgfcalendarcurrentmonth-\pgfcalendarcurrentweekday},
      %
      % teaching day, include hyperlink node based on the date
      teaching day/.style={
        days={text=blue, fill=yellow, hyperlink node=\pgfcalendarcurrentyear-\pgfcalendarcurrentmonth-\pgfcalendarcurrentday}}]
      %
      % standard stuff
      %
      if (Saturday) [red!50!black]
      if (Sunday)   [red]
      %
      % the first day of the month is in the upmost row,
      % let's place the weekday above it and align it properly
      % the name @firstweekday can be referenced later
      %
      if (day of month=1) [days={append after command={
        node [anchor=base east, at={(\tikzlastnode.base east)}, alias=@firstweekday,
          yshift=\csname tikz@lib@cal@yshift\endcsname, weekday node/.try] {\%w-}}}]
      %
      % for all other days 2 to 7 we place the weekday text similar but we use the
      % the first placed weekday text to make sure we align it at the same height
      %
      if (day of month=2, day of month=3, day of month=4, day of month=5, day of month=6, day of month=7) [days={append after command={
        node [anchor=base east, at={(@firstweekday.base east-|\tikzlastnode.base east)}, weekday node/.try] {\%w-}}}]
      %
      % and go
      %
      if (equals-strip/.list/.expand once=\teachingdays) [teaching day]
      ;
}
\newcommand*\teachingdays{%
  2021-05-11/Intro,
  2021-05-18/Basics I,
  2021-05-25/Basics II,
  2021-06-01/And,
  2021-06-08/Much,
  2021-06-15/More,
  2021-06-22/Stuff,
  2021-06-29/To Do,
  2021-07-06/In,
  2021-07-13/Class}

\linespread{1.3}
\begin{document}\noindent
\begin{tikzpicture}[every calendar/.style={week list}]
    \matrix[column sep=1.5ex]{%
       \calperiod{05} & \calperiod{06} & \calperiod{07} \\
    };
    \foreach \mon/\t in {05/May, 06/Jun, 07/Jul}
      \node[anchor=south, yshift=2ex, at=(weekday-\mon-3)] {\textbf{\t}};
\end{tikzpicture}

\pagebreak
\setlength{\labelwidth}{4em}
\begin{itemize}
    \foreach \target/\name[/utils/exec=\let\%\pgfcalendarshorthand] in \teachingdays {
      \expandafter\pgfcalendarsimpleparse\target\relax
      \item[\%m. \%d= \%y-] \hypertarget{ref-\target}{\name}}
\end{itemize}
\end{document}

输出

Answer 1