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-rw-r--r--macros/latex/contrib/pdfoverlay/pdfoverlay.dtx29
1 files changed, 15 insertions, 14 deletions
diff --git a/macros/latex/contrib/pdfoverlay/pdfoverlay.dtx b/macros/latex/contrib/pdfoverlay/pdfoverlay.dtx
index 82fb0e35e3..1ae9d9ded0 100644
--- a/macros/latex/contrib/pdfoverlay/pdfoverlay.dtx
+++ b/macros/latex/contrib/pdfoverlay/pdfoverlay.dtx
@@ -22,10 +22,11 @@
% \changes{v1.1}{2019/11/03}{Fix deprecated macros}
% \changes{v1.2}{2020/10/29}{Update to use \pkg{l3hooks}}
% \changes{v1.2a}{2021/02/25}{Ensure backend loaded before counting pages}
+% \changes{v1.2b}{2021/11/01}{Protect unexpandable macros}
%
% \title{The \pkg{pdfoverlay} package}
% \author{David Purton\thanks{Email: \url{dcpurton@marshwiggle.net}}}
-% \date{2021/02/25 v1.2a}
+% \date{2021/11/01 v1.2b}
%
% \maketitle
%
@@ -164,7 +165,7 @@
%
% \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}[2020-10-01]
-\ProvidesExplPackage{pdfoverlay}{2021/02/25}{1.2a}
+\ProvidesExplPackage{pdfoverlay}{2021/11/01}{1.2b}
{Overlay text on an existing PDF document (DCP)}
% \end{macrocode}
%
@@ -322,7 +323,7 @@
% Main function to output the current page of the PDF file. This is called
% before every page is shipped using the \texttt{shipout/background} hook.
% \begin{macrocode}
-\cs_new:Nn \@@_output_pdf_page:
+\cs_new_protected:Nn \@@_output_pdf_page:
{
% \end{macrocode}
% Check if we are currently outputting pages, a PDF file has been set, and
@@ -361,7 +362,7 @@
% Format the PDF page with options from \cs{g_@@_graphics_options_clist} and
% place it in \cs{g_@@_pdf_page_coffin}.
% \begin{macrocode}
-\cs_new:Nn \@@_format_pdf_page:
+\cs_new_protected:Nn \@@_format_pdf_page:
{
\hcoffin_gset:Nn \g_@@_pdf_page_coffin
{
@@ -409,7 +410,7 @@
% with \cs{pdfoverlay_set_pdf} then \cs{g_@@_pdf_page_count_int} is set to
% zero.
% \begin{macrocode}
-\cs_new:Nn \@@_count_pdf_pages:
+\cs_new_protected:Nn \@@_count_pdf_pages:
{
\int_gzero:N \g_@@_page_count_int
\str_if_empty:NTF \g_@@_pdf_file_name_str
@@ -467,7 +468,7 @@
% Check if a PDF file has been set and the requested page is valid. If not,
% generate suitable error messages.
% \begin{macrocode}
-\prg_new_conditional:Npnn \@@_if_page_exists:n #1 { p, T, F, TF }
+\prg_new_conditional:Nnn \@@_if_page_exists:n { p, T, F, TF }
{
\str_if_empty:NTF \g_@@_pdf_file_name_str
{
@@ -500,7 +501,7 @@
% \begin{macro}{\pdfoverlay_set_pdf:n}
% Specify a PDF file to overlay text on to.
% \begin{macrocode}
-\cs_new:Npn \pdfoverlay_set_pdf:n #1
+\cs_new_protected:Nn \pdfoverlay_set_pdf:n
{
% \end{macrocode}
% Test if the file exists and generate a suitable error if it doesn't.
@@ -532,7 +533,7 @@
% \texttt{page} option is appended automatically in the
% correct format.
% \begin{macrocode}
-\cs_new:Nn \pdfoverlay_set_graphics_options:n
+\cs_new_protected:Nn \pdfoverlay_set_graphics_options:n
{
\clist_gset:Nn \g_@@_graphics_options_clist { #1 }
\clist_gput_right:Nn \g_@@_graphics_options_clist
@@ -549,7 +550,7 @@
% \texttt{shipout/background} hook, we just insert the required number of
% blank pages into the document.
% \begin{macrocode}
-\cs_new:Npn \pdfoverlay_include_to_page:n #1
+\cs_new_protected:Nn \pdfoverlay_include_to_page:n
{
% \end{macrocode}
% Check if a PDF file is set and the requested page exists.
@@ -606,7 +607,7 @@
% \begin{macro}{\pdfoverlay_include_to_last_page:}
% Output all remaining pages in the PDF file.
% \begin{macrocode}
-\cs_new:Nn \pdfoverlay_include_to_last_page:
+\cs_new_protected:Nn \pdfoverlay_include_to_last_page:
{
\pdfoverlay_include_to_page:n { \g_@@_page_count_int }
}
@@ -616,8 +617,8 @@
% \begin{macro}{\pdfoverlay_skip_to_page:n}
% Skip to the specified page number in the PDF file.
% \begin{macrocode}
-\cs_new:Npn \pdfoverlay_skip_to_page:n #1
- {
+\cs_new_protected:Nn \pdfoverlay_skip_to_page:n
+ {
\@@_if_page_exists:nT { #1 }
{
% \end{macrocode}
@@ -645,7 +646,7 @@
% \begin{macro}{\pdfoverlay_pause_output:}
% Pause outputting pages from the PDF file.
% \begin{macrocode}
-\cs_new:Nn \pdfoverlay_pause_output:
+\cs_new_protected:Nn \pdfoverlay_pause_output:
{
\bool_gset_false:N \g_@@_output_active_bool
}
@@ -655,7 +656,7 @@
% \begin{macro}{\pdfoverlay_resume_output:}
% Resume outputting pages from the PDF file.
% \begin{macrocode}
-\cs_new:Nn \pdfoverlay_resume_output:
+\cs_new_protected:Nn \pdfoverlay_resume_output:
{
\bool_gset_true:N \g_@@_output_active_bool
}