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+\ProvidesExplFile {tagpdf-pdftex.def} {2018/07/04} {0.1}
+ {tagpdf driver for pdftex}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%% driver (pdflatex) commands
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%literal
+\cs_new:Nn \__uftag_pdfliteral_page:n { \__uftag_tex_pdfliteral:D page { #1} }
+\cs_new:Nn \__uftag_pdfcatalog:n { \__uftag_tex_pdfcatalog:D { #1 } }
+
+% reserve an object num and store the number
+\cs_new:Nn \__uftag_pdfreserveobjnum:N % #1 = macro name to be populated with object number
+ {
+ \__uftag_tex_pdfobj:D reserveobjnum
+ \tl_set:Nx #1 { \int_use:N \__uftag_tex_pdflastobj:D }%
+ }
+
+% add content to an object num stored in a macro
+\cs_new:Nn \__uftag_pdfuseobjnum:Nn
+ {
+ % #1 = macro containing the object number
+ % #2 = object contents, as valid PDF
+ % should #2 be filtered through \pdfstringdef ???
+ \__uftag_tex_immediate:D \__uftag_tex_pdfobj:D useobjnum~#1~{#2}%
+ }
+
+\cs_new:Nn \__uftag_pdfuseobjnum:nn
+ {
+ % #1 = a number the object number
+ % #2 = object contents, as valid PDF
+ % should #2 be filtered through \pdfstringdef ???
+ \__uftag_check_record_pdfobj_num:n {#1}
+ \__uftag_tex_immediate:D \__uftag_tex_pdfobj:D useobjnum~#1~{#2}%
+ }
+
+% obj num of the dictionary for a page:
+% the page count starts by 1
+% pages can referenced before they are actually created
+% no error if the page later doesn't exist
+\cs_new:Nn \__uftag_store_pdfpageref:Nn
+ {
+ % #1 = macro name to be populated with current page object number
+ % #2 = number or counter identifying the required page
+ \tl_set:Nx #1 { \__uftag_tex_pdfpageref:D #2}%
+ }
+
+% a global version of the command
+\cs_new:Nn \__uftag_gstore_pdfpageref:Nn
+ {
+ \tl_gset:Nx #1 { \__uftag_tex_pdfpageref:D #2}%
+ }
+
+\cs_new:Nn \__uftag_pdfobj:Nn
+ {
+ % #1 = macro name to refer to this object
+ % #2 = object contents, as valid PDF
+ % should #2 be filtered through \pdfstringdef ???
+ \__uftag_tex_immediate:D \__uftag_tex_pdfobj:D { #2 }
+ \tl_set:Nx #1 {\int_use:N \__uftag_tex_pdflastobj:D }%
+ }
+
+% pdfpage**s**attr: for all pages
+%% is global needed? Yes. Without it the setting is lost if issued in a group
+%
+\cs_new:Nn \__uftag_gset_pdfpagesattr:n
+ {
+ \__uftag_tex_global:D \__uftag_tex_pdfpagesattr:D { #1 }
+ }
+
+\cs_new:Nn \__uftag_gadd_pdfpagesattr:n
+ {
+ \exp_args:No \__uftag_gset_pdfpagesattr:n { \__uftag_tex_the:D \__uftag_tex_pdfpagesattr:D #1 }
+ }
+
+% pdfpageattr for one page
+% I must avoid to overwrite other entries,
+% And I must avoid to add more and more /StructParens
+% do we need an immediate version??
+\cs_new:Nn \__uftag_gset_pdfpageattr:n
+ {
+ \__uftag_tex_global:D \__uftag_tex_pdfpageattr:D { #1 }
+ }
+
+\cs_new:Nn \__uftag_gadd_pdfpageattr:n
+ {
+ \exp_args:No \__uftag_gset_pdfpageattr:n { \__uftag_tex_the:D \__uftag_tex_pdfpageattr:D #1}
+ }
+
+\cs_new:Nn \__uftag_get_pdfpageattr:N
+ {
+ \tl_set:No #1 { \__uftag_tex_the:D \__uftag_tex_pdfpageattr:D }
+ }
+\cs_new:Nn \__uftag_pdfcompresslevel:n
+ {
+ \__uftag_tex_pdfcompresslevel:D #1
+ }
+
+\cs_new:Nn \__uftag_pdfobjcompresslevel:n
+ {
+ \__uftag_tex_pdfobjcompresslevel:D #1
+ }
+
+
+% These commands are only aliases for pdflatex but are defined differently with luatex
+% to get also lua tables.
+\cs_set_eq:NN \__uftag_prop_new:N \prop_new:N
+
+\cs_set_eq:NN \__uftag_seq_new:N \seq_new:N
+
+\cs_set_eq:NN \__uftag_prop_gput:Nnn \prop_gput:Nnn
+
+\cs_set_eq:NN \__uftag_seq_gput_right:Nn \seq_gput_right:Nn
+
+\cs_set_eq:NN \__uftag_seq_item:cn \seq_item:cn
+
+\cs_set_eq:NN \__uftag_prop_item:cn \prop_item:cn
+
+\cs_set_eq:NN \__uftag_seq_show:N \seq_show:N
+
+\cs_set_eq:NN \__uftag_prop_show:N \prop_show:N
+
+
+
+\endinput