document \unspace behaviour

fnpct-manual.tex

@@ -105,7 +105,8 @@ \subsection{Introduction}
 behavior and the amount of kerning can be set for each punctuation mark
 individually. This behavior can also be turned off.
 
-\subsection{Basics}
+\subsection{New Behavior of \cs*{footnote}}
+\subsubsection{Interaction With Punctuation}
 The \fnpct\ package basically does two things to footnotes:
 \begin{itemize}
  \item if footnote marks are followed by a comma or a full stop\footnote{More
@@ -163,6 +164,20 @@ \subsection{Basics}
  \caption{The effect of \fnpct.}\label{fig:effects}
 \end{figure}
 
+\subsubsection{Space Before Footnotes}\label{sec:space-before}
+\fnpct\sinceversion{1.1} tries to help you in one more way: it removes a
+possible space before a footnote command:
+
+\begin{example}
+ The three little pigs built their houses out of straw \footnote{not to be
+ confused with hay}, sticks \footnote{or lumber according to some sources}
+ and bricks \footnote{probably fired clay bricks}.
+\end{example}
+
+For this behavior it uses \pkg{biblatex}'s (or \pkg{csquotes}') command
+\cs{unspace} if available. Otherwise it defines the command for itself. This
+behavior can be turned off by an option.
+
 \subsection{Temporarily disable (or enable) switching -- new syntax of the
  \cs*{footnote} command}
 One maybe want to put some footnote marks \emph{before} the punctuation and
@@ -209,6 +224,9 @@ \section{Options}\label{sec:options}
  Switches of \fnpct's mechanism.
  \keybool{reverse}\Default{false}
  This option reverses the behavior of starred and un-starred footnotes.
+ \keybool{unspace}\Default{true}
+ \sinceversion{1.1}This option turns the behavior described in
+ section~\ref{sec:space-before} off or on.
  \keybool{ranges}\Default{false}
  Activates ranges for multiple footnotes. This is not compatible with
  \pkg{hyperref} and does not work for the marks of some packages.

fnpct.sty

@@ -85,6 +85,7 @@
 \bool_new:N \g__fnpct_multiple_bool
 \bool_new:N \g__fnpct_text_bool
 \bool_new:N \l__fnpct_debug_bool
+\bool_new:N \l__fnpct_unspace_bool
 
 \tl_new:N \l_fnpct_action_tl
 \tl_new:N \l_fnpct_last_action_tl
@@ -684,17 +685,23 @@
  \bool_lazy_or:nnTF
  { \fnpct_if_package_loaded_p:n {biblatex} }
  { \fnpct_if_package_loaded_p:n {csquotes} }
- { \cs_new_eq:NN \fnpct_unspace: \unspace }
+ {
+ \cs_new_protected:Npn \fnpct_unspace:
+ { \bool_if:NT \l__fnpct_unspace_bool { \unspace } }
+ }
  {
  \cs_new_protected:Npn \fnpct_unspace:
  {
- \mode_if_horizontal:T
+ \bool_if:NT \l__fnpct_unspace_bool
  {
- \dim_compare:nNnTF \lastskip > {0pt}
- { \unskip \fnpct_unspace: }
+ \mode_if_horizontal:T
  {
- \int_compare:nNnT \lastpenalty > {0pt}
- { \unpenalty \fnpct_unspace: }
+ \dim_compare:nNnTF \lastskip > {0pt}
+ { \unskip \fnpct_unspace: }
+ {
+ \int_compare:nNnT \lastpenalty > {0pt}
+ { \unpenalty \fnpct_unspace: }
+ }
  }
  }
  }
@@ -906,6 +913,8 @@
  keep-ranges .initial:n = false ,
  dont-mess-around .bool_set:N = \l__fnpct_dont_mess_around_bool ,
  dont-mess-around .initial:n = false ,
+ unspace .bool_set:N = \l__fnpct_unspace_bool ,
+ unspace .initial:n = true ,
  mult-fn-delim .tl_set:N = \l__fnpct_multiple_footnotes_delimiter_tl ,
  mult-fn-delim .initial:n = {;} ,
  mult-variant-prefix .tl_set:N = \l__fnpct_mult_variant_prefix_tl ,
@@ -1419,3 +1428,4 @@ tablefootnote
 2022/02/03 v1.1 - add \fnpct_unspace: (similar/equal to biblatex's \unspace),
  see https://tex.stackexchange.com/questions/467561/
  - new option `mult-variant-prefix'
+ - new option `unspace'