我遇到的問題是我的交叉引用和相應的計算似乎無法在\tabbing環境中正常工作。計算本身似乎有效，但交叉引用可能封裝在 '\tabbing` 環境中。
順便說一句：Minipage 環境顯示相同的行為，所以我認為這是一個系統問題。
微量元素
\documentclass{article}
\usepackage[parfill]{parskip}
\usepackage{zref}
\usepackage{siunitx}
\newcommand{\myHSpace}{25mm}
\makeatletter
\newcommand\mylabel[2]{%
\def\@currentlabel{#2}\phantomsection\label{mylabel:#1}{#2}}
\newcommand\myref[1]{%
\ref{mylabel:#1}}
\makeatother
\makeatletter
\ExplSyntaxOn
\cs_new_protected_nopar:Npn \DefineExemptionOrderBudget #1#2{%
\@bsphack
\exp_args:Nnf
\zref@newprop{ExemptionOrder#1}{\fp_to_decimal:n{(#2)}}
\@esphack
}%
\cs_new_protected_nopar:Npn \WithdrawFromExemptionOrderBudget #1#2 {%
\@bsphack
\exp_args:Nnf
\zref@setcurrent{ExemptionOrder#1}{%
\fp_to_decimal:n{(\zref@getcurrent{ExemptionOrder#1})-(#2)}
}
\@esphack
}%
\cs_new_protected_nopar:Npn \GetCurrentExemptionOrderBudget #1 {%
\fp_to_decimal:n {(\zref@getcurrent{ExemptionOrder#1})}
}
\cs_new_protected_nopar:Npn \SetRemainingExemptionOrderBudgetToLabel #1#2 {%
\zref@labelbyprops{#2}{ExemptionOrder#1}
}
\cs_new_protected_nopar:Npn \ReferToOverallExemptionOrderBudgetLeft #1#2#3 {%
\zref@ifrefundefined{#2}
{\use_ii:nn}
{\zref@ifrefcontainsprop{#2}{ExemptionOrder#1}{\use_i:nn}{\use_ii:nn}}
{ \PrintMoney{\zref@extractdefault{#2}{ExemptionOrder#1}{0}}{#3}}
{\zref@refused{#2}\textsf{??}}
}
\cs_new_protected_nopar:Npn \PrintMoney #1#2 {%
\exp_args:Nne
\use:n {\SI [{ add-decimal-zero,
add-integer-zero,
detect-mode=true,
round-mode=places,
round-half=up,
group-digits=true,
group-minimum-digits=2,
group-separator=\,,
output-decimal-marker={,},
round-precision={#2}}]}
{\fp_to_decimal:n{round(((#1)+0),#2,NaN)}}{€}
}
\DefineExemptionOrderBudget{ExemptionBudget}{1000}
\cs_new_protected_nopar:Npn \WithdrawFromExemptionOrderBudgetForAccount #1 {%
\WithdrawFromExemptionOrderBudget{ExemptionBudget}{#1}
Piece~price:\nobreakspace
\PrintMoney{#1}{2}\nobreakspace/~
Money~left~currently~\PrintMoney{\GetCurrentExemptionOrderBudget{ExemptionBudget}}{2}\nobreakspace/~
Money~left~overall~\ReferToOverallExemptionOrderBudgetLeft{ExemptionBudget}{overall}{2})
}
\cs_new_protected_nopar:Npn\RecordFinalExemptionOrderBudgetToLabel {%
\SetRemainingExemptionOrderBudgetToLabel{ExemptionBudget}{overall}
}
\ExplSyntaxOff
\makeatother
\begin{document}
Complete Budget: \PrintMoney{\GetCurrentExemptionOrderBudget{ExemptionBudget}}{2}\\
\WithdrawFromExemptionOrderBudgetForAccount{20}\\
\begin{tabbing}
\hspace{\myHSpace}\=\kill
Tabbing:\>\WithdrawFromExemptionOrderBudgetForAccount{20}\\
\end{tabbing}
\WithdrawFromExemptionOrderBudgetForAccount{20}\\
\RecordFinalExemptionOrderBudgetToLabel
\end{document}
結果
正如您所看到的，該金額是在選項卡環境中暫時扣除的，但不考慮在「總體」計算中。
答案1
連結中引用的程式碼A 是我寫的。
在編寫它時，我忽略了使用 zref-package 引入新屬性 ( \zref@newprop) 的分配是全域完成的（不限於當前範圍），而設定屬性值的分配 ( \zref@setcurrent) 始終限制在當前範圍內，也可以是由某有些環境形成的局部範圍。在下面的程式碼中，我添加了\zref@setcurrent全域分配的變體。
\documentclass{article}
\usepackage[parfill]{parskip}
\usepackage{zref}
\usepackage{siunitx}
\newcommand{\myHSpace}{25mm}
\makeatletter
\newcommand\mylabel[2]{%
\def\@currentlabel{#2}\phantomsection\label{mylabel:#1}{#2}}
\newcommand\myref[1]{%
\ref{mylabel:#1}}
\makeatother
\makeatletter
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% A variant of \zref@setcurrent which sets properties globally
\ZREF@Robust\def\zref@setcurrentglobal#1#2{%
\zref@propexists{#1}{%
\expandafter\gdef\csname Z@C@#1\endcsname{#2}%
}%
}%
% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
\ExplSyntaxOn
\cs_new_protected_nopar:Npn \DefineExemptionOrderBudget #1#2{%
\@bsphack
\exp_args:Nnf
\zref@newprop{ExemptionOrder#1}{\fp_to_decimal:n{(#2)}}
\@esphack
}%
\cs_new_protected_nopar:Npn \WithdrawFromExemptionOrderBudget #1#2 {%
\@bsphack
\exp_args:Nnf
\zref@setcurrentglobal{ExemptionOrder#1}{% <----\zref@setcurrentglobal instead of \zref@setcurrent
\fp_to_decimal:n{(\zref@getcurrent{ExemptionOrder#1})-(#2)}
}
\@esphack
}%
\cs_new_protected_nopar:Npn \GetCurrentExemptionOrderBudget #1 {%
\fp_to_decimal:n {(\zref@getcurrent{ExemptionOrder#1})}
}
\cs_new_protected_nopar:Npn \SetRemainingExemptionOrderBudgetToLabel #1#2 {%
\zref@labelbyprops{#2}{ExemptionOrder#1}
}
\cs_new_protected_nopar:Npn \ReferToOverallExemptionOrderBudgetLeft #1#2#3 {%
\zref@ifrefundefined{#2}
{\use_ii:nn}
{\zref@ifrefcontainsprop{#2}{ExemptionOrder#1}{\use_i:nn}{\use_ii:nn}}
{\PrintMoney{\zref@extractdefault{#2}{ExemptionOrder#1}{0}}{#3}}
{\zref@refused{#2}\textsf{??}}
}
\cs_new_protected_nopar:Npn \PrintMoney #1#2 {%
\exp_args:Nne
\use:n {\SI [{ add-decimal-zero,
add-integer-zero,
detect-mode=true,
round-mode=places,
round-half=up,
group-digits=true,
group-minimum-digits=2,
group-separator=\,,
output-decimal-marker={,},
round-precision={#2}}]}
{\fp_to_decimal:n{round(((#1)+0),#2,NaN)}}{€}
}
\DefineExemptionOrderBudget{ExemptionBudget}{1000}
\cs_new_protected_nopar:Npn \WithdrawFromExemptionOrderBudgetForAccount #1 {%
\WithdrawFromExemptionOrderBudget{ExemptionBudget}{#1}
Piece~price:\nobreakspace
\PrintMoney{#1}{2}\nobreakspace/~
Money~left~currently~\PrintMoney{\GetCurrentExemptionOrderBudget{ExemptionBudget}}{2}\nobreakspace/~
Money~left~overall~\ReferToOverallExemptionOrderBudgetLeft{ExemptionBudget}{overall}{2})
}
\cs_new_protected_nopar:Npn\RecordFinalExemptionOrderBudgetToLabel {%
\SetRemainingExemptionOrderBudgetToLabel{ExemptionBudget}{overall}
}
\ExplSyntaxOff
\makeatother
\begin{document}
Complete Budget: \PrintMoney{\GetCurrentExemptionOrderBudget{ExemptionBudget}}{2}\\
\WithdrawFromExemptionOrderBudgetForAccount{30}\\
\begin{tabbing}
\hspace{\myHSpace}\=\kill
Tabbing:\>\WithdrawFromExemptionOrderBudgetForAccount{50}\\
\end{tabbing}
\WithdrawFromExemptionOrderBudgetForAccount{20}\\
\RecordFinalExemptionOrderBudgetToLabel
\end{document}
