%% %% This is file `tagpdf-tree-code.sty', %% generated with the docstrip utility. %% %% The original source files were: %% %% tagpdf-tree.dtx (with options: `tree') %% %% Copyright (C) 2019 Ulrike Fischer %% %% It may be distributed and/or modified under the conditions of %% the LaTeX Project Public License (LPPL), either version 1.3c of %% this license or (at your option) any later version. The latest %% version of this license is in the file: %% %% https://www.latex-project.org/lppl.txt %% %% This file is part of the "tagpdf bundle" (The Work in LPPL) %% and all files in that bundle must be distributed together. %% %% File: tagpdf-tree.dtx \ProvidesExplPackage {tagpdf-tree-code} {2021/02/23} {0.80} {part of tagpdf - code related to writing trees and dictionaries to the pdf} \hook_gput_code:nnn{begindocument}{tagpdf} { \bool_if:NT \g__tag_active_tree_bool { \AfterEndDocument { \tag_finish_structure: } } } \pdf_object_new:nn { c__tag_struct_0_obj }{ dict } %need to think about the best place ... \hook_gput_code:nnn{begindocument}{tagpdf} { \bool_if:NT \g__tag_active_struct_bool { \pdfmanagement_add:nnx { Catalog } { StructTreeRoot } { \pdf_object_ref:n { c__tag_struct_0_obj } } } } \cs_new_protected:Nn \__tag_tree_write_structtreeroot: { \__tag_struct_write_obj:n { 0 } } \cs_new_protected:Nn \__tag_tree_write_structelements: { \int_step_inline:nnnn {1}{1}{\c@g__tag_struct_abs_int} { %\prop_show:c {g__tag_struct_##1_prop} \__tag_struct_write_obj:n { ##1 } %write the object } } \pdf_object_new:nn { c__tag_tree_parenttree_obj }{ dict } \newcounter { g__tag_parenttree_obj_int } \hook_gput_code:nnn{begindocument}{tagpdf} { \int_gset:Nn \c@g__tag_parenttree_obj_int { \__tag_ref_value_lastpage:nn{abspage}{100} } } \tl_new:N \g__tag_parenttree_objr_tl \cs_new_protected:Nn \__tag_parenttree_add_objr:nn %#1 Structparent number, #2 objref { \tl_gput_right:Nx \g__tag_parenttree_objr_tl { #1 \c_space_tl #2 ^^J } } \tl_new:N \l__tag_parenttree_content_tl \cs_new_protected:Nn \__tag_tree_fill_parenttree: { \int_step_inline:nnnn{1}{1}{\__tag_ref_value_lastpage:nn{abspage}{-1}} %not quite clear if labels are needed. See lua code { %page ##1\par \prop_clear:N \l_tmpa_prop \int_step_inline:nnnn{1}{1}{\__tag_ref_value_lastpage:nn{tagmcabs}{-1}} { %mcid####1 \int_compare:nT%F {\__tag_ref_value:enn{mcid-####1}{tagabspage}{-1}=##1} %mcid is on current page {% yes\par \prop_put:Nxx \l_tmpa_prop {\__tag_ref_value:enn{mcid-####1}{tagmcid}{-1}} {\prop_item:Nn \g__tag_mc_parenttree_prop {####1}} } } %\prop_show:N \l_tmpa_prop \tl_put_right:Nx\l__tag_parenttree_content_tl { \int_eval:n {##1-1}\c_space_tl [\c_space_tl %] } \int_step_inline:nnnn {0} {1} { \prop_map_function:NN \l_tmpa_prop\__tag_prop_count:nn -1 } { \prop_get:NnNTF \l_tmpa_prop {####1} \l_tmpb_tl {% page#1:mcid##1:\l_tmpb_tl :content \tl_put_right:Nx \l__tag_parenttree_content_tl { \prop_item:cn { g__tag_struct_\l_tmpb_tl _prop } {objref} \c_space_tl } %\tl_show:N \l__tag_parenttree_content_tl } { \msg_warning:nn { tag } {tree-mcid-index-wrong} } } \tl_put_right:Nn \l__tag_parenttree_content_tl {%[ ]^^J } } } \cs_new_protected:Nn \__tag_tree_lua_fill_parenttree: { \tl_set:Nn \l__tag_parenttree_content_tl { \directlua { ltx.__tag.func.output_parenttree ( \int_use:N\g_shipout_readonly_int ) } } } \cs_new_protected:Nn \__tag_tree_write_parenttree: { \bool_if:NTF \g__tag_mode_lua_bool { \__tag_tree_lua_fill_parenttree: } { \__tag_tree_fill_parenttree: } \tl_put_right:NV \l__tag_parenttree_content_tl\g__tag_parenttree_objr_tl \pdf_object_write:nx { c__tag_tree_parenttree_obj } { /Nums\c_space_tl [\l__tag_parenttree_content_tl] } } \pdf_object_new:nn { c__tag_tree_rolemap_obj }{ dict } \tl_new:N \l__tag_rolemap_content_tl \cs_new_protected:Nn \__tag_tree_fill_rolemap: { \prop_map_inline:Nn \g__tag_role_rolemap_prop { \tl_put_right:Nx \l__tag_rolemap_content_tl { /##1\c_space_tl/##2^^J } } } \cs_new_protected:Nn \__tag_tree_write_rolemap: { \__tag_tree_fill_rolemap: \pdf_object_write:nx { c__tag_tree_rolemap_obj } { \l__tag_rolemap_content_tl } } \cs_new_protected:Nn \__tag_tree_write_classmap: { \tl_gclear:N \g__tag_attr_class_content_tl \seq_gremove_duplicates:N \g__tag_attr_class_used_seq \seq_set_map:NNn \l_tmpa_seq \g__tag_attr_class_used_seq { /##1\c_space_tl << \prop_item:Nn \g__tag_attr_entries_prop {##1} >> } \tl_gset:Nx \g__tag_attr_class_content_tl { \seq_use:Nn \l_tmpa_seq { \iow_newline: } } \tl_if_empty:NF \g__tag_attr_class_content_tl { \pdf_object_new:nn { c__tag_tree_classmap_obj }{ dict } % \__tag_pdfreserveobjnum:N \l_tmpa_tl % \tl_const:Nx \c__tag_tree_obj_classmap_tl { \l_tmpa_tl } \pdf_object_write:nx { c__tag_tree_classmap_obj } { \g__tag_attr_class_content_tl } \__tag_prop_gput:cnx { g__tag_struct_0_prop } { ClassMap } { \pdf_object_ref:n { c__tag_tree_classmap_obj } } } } \cs_new_protected:Nn \tag_finish_structure: { \__tag_tree_write_parenttree: \__tag_tree_write_rolemap: \__tag_tree_write_classmap: \__tag_tree_write_structelements: %this is rather slow!! \__tag_tree_write_structtreeroot: } \cs_set_eq:NN \uftag_finish_structure: \tag_finish_structure: \hook_gput_code:nnn{begindocument}{tagpdf} { \bool_if:NT\g__tag_active_tree_bool { \hook_gput_code:nnn{shipout/before} { tagpdf/structparents } { \pdfmanagement_add:nnx { Page } {StructParents} {\int_eval:n { \g_shipout_readonly_int}} } } } %% %% %% End of file `tagpdf-tree-code.sty'.