- Make all packages Expl3.

- Replace ifthen dependency with wrappers for Latex3 conditionals.
- Debug CrossRef and WrapBoxout.

packages/Boxout.sty

@@ -53,12 +53,14 @@
 	\color{textColor}
 	\label{box:#2}
 	\tl_if_empty:nTF {#3} {
+		% No header
 		\expanded{\noexpand\begin{tblrBoxout}{\l_Boxout_innerspec_tl}}
 			\setlength{\parskip}{\medskipamount}
 			\setlength{\parindent}{0pt}
 			\__Boxout_format:\ignorespaces#4\\
 		\end{tblrBoxout}
 	}{
+		% Yes header
 		\expanded{\noexpand\begin{tblrBoxout}{\l_Boxout_innerspec_tl}}
 			\SetCell{halign=c, font={\sbfamily\bfseries}}{#3}\\
 			\setlength{\parskip}{\medskipamount}
@@ -167,9 +169,9 @@
 	\keys_set:nn{WrapBoxout}{#1}
 	\__WrapFig_process_options:
 	\dim_compare:nNnTF {\l_WrapBoxout_width_dim} > {\l_WrapBoxout_justifywidth_dim} {
-		\cs_set:Npn \__WrapBoxout_format: {\justifying}
+		\cs_set:Nn \__WrapBoxout_format: {\justifying}
 	} {
-		\cs_set:Npn \__WrapBoxout_format: {\l_WrapFig_format_tl}
+		\cs_set:Nn \__WrapBoxout_format: {\l_WrapFig_format_tl}
 	}
 	% \message{
 	% 	WrapBoxout:~
@@ -181,14 +183,15 @@
 		hoffset	= {\dim_use:N \l_WrapFig_hoffset_dim},
 		\l_WrapFig_passed_keys_str,
 	]}
-		%\begin{minipage}{\l_WrapBoxout_width_dim}
-			\begin{Boxout}[
-				innerspec:e	= {\l_Boxout_innerspec_tl,columns={\dim_use:N \l_WrapBoxout_width_dim}},
-				warning:e	= \bool_to_str:N \l_Boxout_warning_bool,
-				format		= {\__WrapBoxout_format:}
-			]{#2}[#3]
-				#4
-			\end{Boxout}
-		%\end{minipage}
+		\begin{Boxout}[
+			innerspec:e	= {
+				\l_Boxout_innerspec_tl,
+				columns={\dim_use:N \l_WrapBoxout_width_dim}
+			},
+			warning:e	= {\bool_to_str:N \l_Boxout_warning_bool},
+			format		= \__WrapBoxout_format:,
+		]{#2}[#3]
+			#4
+		\end{Boxout}
 	\end{wrapstuff}
 \group_end: }{}