mark modules as @safe: (& identify what is not)

21 files changed, 377 insertions, 339 deletions

diff --git a/org/compile_time_info.org b/org/compile_time_info.org
index 763a602..f333390 100644
--- a/org/compile_time_info.org
+++ b/org/compile_time_info.org
@@ -35,6 +35,7 @@ version(Windows) {} else { ... }
   compile_time_info
 +/
 module doc_reform.conf.compile_time_info;
+@safe:
 template CompileTimeInfo() {
   <<spine_compile_time_info_0>>
   <<spine_compile_time_info_1>>
diff --git a/org/default_misc.org b/org/default_misc.org
index fd5681f..22a9781 100644
--- a/org/default_misc.org
+++ b/org/default_misc.org
@@ -29,6 +29,7 @@
   default settings
 +/
 module doc_reform.meta.defaults;
+@safe:
 <<meta_defaults_template_node>>
 <<meta_defaults_template_curate_metadata>>
 <<meta_defaults_template_biblio>>
@@ -42,7 +43,7 @@ module doc_reform.meta.defaults;
 #+NAME: meta_defaults_template_node
 #+BEGIN_SRC d
 template spineNode() {
-  @safe static string[string] node_metadata_heading_str() {
+  static string[string] node_metadata_heading_str() {
     string[string] _node = [
         "is"                            : "",
         "ocn"                           : "",
@@ -53,7 +54,7 @@ template spineNode() {
     ];
     return _node;
   }
-  @safe static int[string] node_metadata_heading_int() {
+  static int[string] node_metadata_heading_int() {
     int[string] _node = [
         "ocn"                           : 0, // decide whether to use or keep?
         "ptr_doc_object"                : 0,
@@ -66,7 +67,7 @@ template spineNode() {
     ];
     return _node;
   }
-  @safe static string[string] node_metadata_para_str() {
+  static string[string] node_metadata_para_str() {
     string[string] _node = [
         "is"                            : "",
         "ocn"                           : "",
@@ -74,7 +75,7 @@ template spineNode() {
     ];
     return _node;
   }
-  @safe static int[string] node_metadata_para_int() {
+  static int[string] node_metadata_para_int() {
     int[string] _node = [
         "ocn"                           : 0,
         "indent_base"                   : 0,
@@ -91,7 +92,7 @@ template spineNode() {
 #+NAME: meta_defaults_template_curate_metadata
 #+BEGIN_SRC d
 template spineCurateMetadata() {
-  @safe auto spineCurateMetadata() {
+  auto spineCurateMetadata() {
     struct _Curate {
       struct Curate {
         string   title                = "";
@@ -131,7 +132,7 @@ template spineCurateMetadata() {
 template spineBiblio() {
   // required: deemed_author (author || editor); year; fulltitle;
   struct BibJsnStr {
-    @safe static auto biblio_entry_tags_jsonstr() {
+    static auto biblio_entry_tags_jsonstr() {
       string x =  `{
         "is"                               : "",
         "sortby_deemed_author_year_title"  : "",
@@ -179,6 +180,7 @@ template spineBiblio() {
   default settings
 +/
 module doc_reform.io_out.defaults;
+@safe:
 <<defaults_template_init_flags>>
 <<defaults_template_markup>>
 <<defaults_template_language_codes>>
@@ -273,7 +275,7 @@ template InternalMarkup() {
 template spineLanguageCodes() {
   /+ language codes +/
   struct Lang {
-    @safe static string[string][string] codes() {
+    static string[string][string] codes() {
       auto _lang_codes = [
         "am":    [ "c": "am",    "n": "Amharic",           "t": "Amharic",                   "xlp": "amharic"      ],
         "bg":    [ "c": "bg",    "n": "Bulgarian",         "t": "Български (Bəlgarski)",     "xlp": "bulgarian"    ],
@@ -340,15 +342,15 @@ template spineLanguageCodes() {
       ];
       return _lang_codes;
     }
-    @safe static string[] code_arr_ptr() {
+    static string[] code_arr_ptr() {
       string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "us", "vi", "zh", "en", "xx",];
       return _lang_codes;
     }
-    @safe static string[] code_arr() {
+    static string[] code_arr() {
       string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "vi", "zh"];
       return _lang_codes;
     }
-    @safe static auto codes_() {
+    static auto codes_() {
       return "(" ~ join(code_arr,"|") ~ ")";
     }
     static auto codes_regex() {
diff --git a/org/default_paths.org b/org/default_paths.org
index 009770d..9e9770f 100644
--- a/org/default_paths.org
+++ b/org/default_paths.org
@@ -30,6 +30,7 @@
   meta_config_files.d
 +/
 module doc_reform.io_in.paths_source;
+@safe:
 import
   std.array,
   std.file,
@@ -56,7 +57,7 @@ import
 template PodManifest() {
   mixin spineRgxFiles;
   static auto rgx_files = RgxFiles();
-  @safe auto PodManifest(O)(
+  auto PodManifest(O)(
     O       _opt_action,
     string  _pth=""
   ) {
@@ -64,7 +65,7 @@ template PodManifest() {
       string pod_manifest_filename() {
         return "pod.manifest";
       }
-      @safe string pod_manifest_path() {
+      string pod_manifest_path() {
         string _manifest_path;
         if ((isValidPath(_pth) && exists(_pth) != 0 && _pth.isDir)
         && (exists(_pth.chainPath(pod_manifest_filename).array) != 0
@@ -86,10 +87,10 @@ template PodManifest() {
         }
         return _manifest_path;
       }
-      @safe string pods_collection_root_path() {
+      string pods_collection_root_path() {
         return (pod_manifest_path.length > 0) ? ((chainPath(pod_manifest_path, "..")).asNormalizedPath).array.to!string : "";
       }
-      @safe string pod_manifest_file_with_path() {
+      string pod_manifest_file_with_path() {
         string _k;
         if  (exists(pod_manifest_path.chainPath(pod_manifest_filename).array)!=0) {
           _k = pod_manifest_path.chainPath(pod_manifest_filename).array;
@@ -133,14 +134,14 @@ template PathMatters() {
   mixin spineRgxFiles;
   static auto rgx_files = RgxFiles();
   static auto mkup = InlineMarkup();
-  @safe auto PathMatters(O,E)(
+  auto PathMatters(O,E)(
     O        _opt_action,
     E        _env,
     string   _pth,
     string   _fns              = "",
     char[][] _manifest_fn_list = [[]],
   ) {
-    @safe auto _manifested = PodManifest!()(_opt_action, _pth);
+    auto _manifested = PodManifest!()(_opt_action, _pth);
     struct ManifestMatters_ {
       auto env() {
         auto _env = _env;
@@ -154,7 +155,7 @@ template PathMatters() {
         }
         return Env_();
       }
-      @safe auto opt() {
+      auto opt() {
         struct Opt_ {
           auto action() {
             return _opt_action;
@@ -162,45 +163,45 @@ template PathMatters() {
         }
         return Opt_();
       }
-      @safe bool src_is_pod() {
+      bool src_is_pod() {
         return (_manifested.pod_manifest_path.length > 0) ? true : false;
       }
-      @safe auto pod() {
+      auto pod() {
         struct Pod_ {
-          @safe bool src_is_pod() {
+          bool src_is_pod() {
             return (_manifested.pod_manifest_path.length > 0) ? true : false;
           }
-          @safe string collection_root() {
+          string collection_root() {
             return _manifested.pods_collection_root_path;
           }
-          @safe string manifest_filename() {
+          string manifest_filename() {
             return _manifested.pod_manifest_filename;
           }
-          @safe string manifest_path() {
+          string manifest_path() {
             return _manifested.pod_manifest_path;
           }
-          @safe string pod_name_with_path() {
+          string pod_name_with_path() {
             return _manifested.pod_manifest_path.baseName;
           }
-          @safe string manifest_file_with_path() {
+          string manifest_file_with_path() {
             return _manifested.pod_manifest_file_with_path;
           }
-          @safe string[] config_dr_document_make_dirs() {
+          string[] config_dr_document_make_dirs() {
             string[] _config_dirs;
             return _config_dirs;
           }
-          @safe string[] config_local_site_dirs() {
+          string[] config_local_site_dirs() {
             string[] _config_dirs;
             return _config_dirs;
           }
-          @safe string[] image_dirs() {
+          string[] image_dirs() {
             string[] _image_dirs;
             return _image_dirs;
           }
-          @safe auto manifest_list_of_filenames() {
+          auto manifest_list_of_filenames() {
             return _manifest_fn_list;
           }
-          @safe string[] manifest_list_of_languages() {
+          string[] manifest_list_of_languages() {
             string[] _lngs;
             foreach (filename_; manifest_list_of_filenames) {
               string _k = "en";
@@ -214,43 +215,43 @@ template PathMatters() {
         }
         return Pod_();
       }
-      @safe auto src() {
+      auto src() {
         string _fns = _fns; // required here by dmd & not by ldc (for D:2078)
         auto _opt_action = _opt_action;
         auto _env = _env;
         struct SRC_ {
-          @safe bool is_pod() {
+          bool is_pod() {
             return (_manifested.pod_manifest_path.length > 0) ? true : false;
           }
-          @safe string path_and_fn() {
+          string path_and_fn() {
             return _fns;
           }
-          @safe string pod_name_with_path() {
+          string pod_name_with_path() {
             return (is_pod) ? _manifested.pod_manifest_path : "";
           }
-          @safe string pods_collection_root_path() {
+          string pods_collection_root_path() {
             return (is_pod) ? _manifested.pods_collection_root_path : "";
           }
-          @safe string pod_name() {
+          string pod_name() {
             return pod_name_with_path.baseName;
           }
-          @safe string filename() {
+          string filename() {
             return path_and_fn.baseName;
           }
-          @safe string filename_base() {
+          string filename_base() {
             return filename.stripExtension;
           }
-          @safe string filename_extension() {
+          string filename_extension() {
             return filename.match(rgx_files.src_pth_sst_or_ssm).captures["extension"];
           }
-          @safe string lng() {
+          string lng() {
             string _k;
             if (auto m = path_and_fn.match(rgx_files.language_code_and_filename)) {
               _k = m.captures[1];
             } else {_k = "en"; }
             return _k;
           }
-          @safe string doc_uid() {
+          string doc_uid() {
             string _uid;
             if (is_pod && !(pod_name_with_path.empty)) {
               if (pod_name_with_path.baseName == filename_base) {
@@ -263,7 +264,7 @@ template PathMatters() {
             }
             return _uid;
           }
-          @safe string doc_uid_out() {
+          string doc_uid_out() {
             string _uid;
             if (is_pod && !(pod_name_with_path.empty)) {
               if (pod_name_with_path.baseName == filename_base) {
@@ -276,7 +277,7 @@ template PathMatters() {
             }
             return _uid;
           }
-          @safe string docname_composite_unique_per_src_doc() {
+          string docname_composite_unique_per_src_doc() {
             string _fn;
             if (pod_name_with_path.baseName == filename_base) {
               _fn = filename_base ~ mkup.uid_sep ~ filename_extension ~ mkup.uid_sep ~ lng;
@@ -287,7 +288,7 @@ template PathMatters() {
             }
             return _fn;
           }
-          @safe string docname_composite_unique_per_src_pod() {
+          string docname_composite_unique_per_src_pod() {
           /+
             z pod name if any + src filename (without lng code)
              filename ~ mkup.uid_sep ~ lng
@@ -306,19 +307,19 @@ template PathMatters() {
             }
             return _fn;
           }
-          @safe string language() {
+          string language() {
             return lng();
           }
-          @safe string file_with_absolute_path() {
+          string file_with_absolute_path() {
             return _env["pwd"].chainPath(path_and_fn).array;
           }
-          @safe string absolute_path_to_src() {
+          string absolute_path_to_src() {
             return (_env["pwd"].chainPath(path_and_fn)).dirName.array;
           }
-          @safe string path_to_doc_root_path_to_lang_and_filename() {
+          string path_to_doc_root_path_to_lang_and_filename() {
             return _env["pwd"].chainPath(path_and_fn).array;
           }
-          @safe string base_dir() {
+          string base_dir() {
             string _dir;
             if (
               auto m = (absolute_path_to_src)
@@ -336,7 +337,7 @@ template PathMatters() {
             }
             return _dir;
           }
-          @safe string base_parent_dir_path() {
+          string base_parent_dir_path() {
             string _dir;
             if (
               auto m = (absolute_path_to_src)
@@ -348,7 +349,7 @@ template PathMatters() {
             }
             return _dir;
           }
-          @safe string base_dir_path() {
+          string base_dir_path() {
             string _dir;
             if (
               auto m = (absolute_path_to_src)
@@ -368,11 +369,11 @@ template PathMatters() {
             }
             return _dir;
           }
-          @safe string media_dir_path() {
+          string media_dir_path() {
             string _dir = ((base_dir_path.chainPath("media")).asNormalizedPath).array;
             return _dir;
           }
-          @safe string image_dir_path() {
+          string image_dir_path() {
             string _paths;
             string[] _possible_img_pths = [ "./image", "../image", "../../image" ];
             string _img_pth_found = "";
@@ -396,10 +397,10 @@ template PathMatters() {
             }
             return _img_pth_found;
           }
-          @safe auto conf_dir_path() {
+          auto conf_dir_path() {
             return ((base_dir_path.chainPath("conf")).asNormalizedPath).array;
           }
-          @safe auto base_parent_dir() {
+          auto base_parent_dir() {
             string _dir;
             if (
               auto m = (absolute_path_to_src)
@@ -414,13 +415,13 @@ template PathMatters() {
             }
             return _dir;
           }
-          @safe string[] config_dirs() {
+          string[] config_dirs() {
             string[] _config_dirs;
             if (is_pod) {
             } else {}
             return _config_dirs;
           }
-          @safe string[] image_dirs() {
+          string[] image_dirs() {
             string[] _image_dirs;
             if (is_pod) {
             } else {}
@@ -429,7 +430,7 @@ template PathMatters() {
         }
         return SRC_();
       }
-      @safe auto output() {
+      auto output() {
         /+
           - command line if output path set
           - config file if found and set set
@@ -443,7 +444,7 @@ template PathMatters() {
         +/
         auto _env = _env;
         struct Out_ {
-          @safe auto path() {
+          auto path() {
             auto _output_path = _env["pwd"];
             if ((_opt_action.output_dir_set.length > 0)
               && isValidPath(_opt_action.output_dir_set)
@@ -477,21 +478,21 @@ template PathMatters() {
 #+NAME: template_paths_src_2
 #+BEGIN_SRC d
 template configFilePaths() {
-  @safe auto configFilePaths(M,E)(
+  auto configFilePaths(M,E)(
     M      _manifested,
     E      _env,
     string _cli_config_path_set = ""
   ) {
     struct ConfFilePaths {
-      @safe string config_filename_document() {
+      string config_filename_document() {
         return "dr_document_make";
       }
-      @safe string config_filename_site() {
+      string config_filename_site() {
         return "config_local_site";
       }
-      @safe auto possible_config_path_locations() {
+      auto possible_config_path_locations() {
         struct _ConfFilePaths {
-          @safe string[] dr_document_make() {
+          string[] dr_document_make() {
             /+ FIX clean up conf paths ↓ +/
             /+ config local site (file system only, not in pod) +/
             /+ return paths +/
@@ -539,7 +540,7 @@ template configFilePaths() {
             +/
             return _possible_config_path_locations;
           }
-          @safe string[] config_local_site() {
+          string[] config_local_site() {
             /+ FIX clean up conf paths ↓ +/
             /+ config local site (file system only, not in pod) +/
             string[] _possible_config_path_locations;
@@ -650,15 +651,15 @@ filelist for processing [things to ponder]
 template spinePathsSRC() {
   mixin spineRgxFiles;
   static auto rgx_files = RgxFiles();
-  @safe auto spinePathsSRC(D,Fn)(
+  auto spinePathsSRC(D,Fn)(
     D   _pwd,
     Fn  _fn_src_and_path,
   ) {
     struct drSrcPaths {
-      @safe auto pwd() {
+      auto pwd() {
         return _pwd;
       }
-      @safe string language() {
+      string language() {
         // use command line info as well?
         string _k;
         if (auto m = _fn_src_and_path.match(rgx_files.language_code_and_filename)) {
@@ -668,28 +669,28 @@ template spinePathsSRC() {
         }
         return _k;
       }
-      @safe string doc_root() {
+      string doc_root() {
         return "dr_doc";
       }
-      @safe auto media_root() {
+      auto media_root() {
         return ((doc_root.chainPath("media")).asNormalizedPath).array;
       }
-      @safe auto conf_root() {
+      auto conf_root() {
         return ((doc_root.chainPath("conf")).asNormalizedPath).array;
       }
-      @safe auto text_root() {
+      auto text_root() {
         return ((media_root.chainPath("text")).asNormalizedPath).array;
       }
-      @safe auto image_root() {
+      auto image_root() {
         return ((media_root.chainPath("image")).asNormalizedPath).array;
       }
-      @safe auto doc_src_fn_with_path_for_text_root_and_lng() {
+      auto doc_src_fn_with_path_for_text_root_and_lng() {
         return ((text_root.chainPath(language)).asNormalizedPath).array;
       }
-      @safe auto doc_src_fn() {
+      auto doc_src_fn() {
         return ((_fn_src_and_path.baseName).asNormalizedPath).array;
       }
-      @safe auto doc_src_with_path() {
+      auto doc_src_with_path() {
         return ((pwd.chainPath(_fn_src_and_path)).asNormalizedPath).array;
       }
     }
@@ -972,6 +973,7 @@ template spinePathsPods() {
   default settings
 +/
 module doc_reform.io_out.paths_output;
+@safe:
 import
   std.array,
   std.path,
diff --git a/org/default_regex.org b/org/default_regex.org
index 72be106..bce6fa6 100644
--- a/org/default_regex.org
+++ b/org/default_regex.org
@@ -42,6 +42,7 @@ https://dlang.org/phobos/std_regex.html
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.meta.rgx;
+@safe:
 static template spineRgxIn() {
   static struct RgxI {
     <<meta_rgx_misc>>
@@ -460,6 +461,7 @@ https://dlang.org/phobos/std_regex.html
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.io_out.rgx;
+@safe:
 static template spineRgxOut() {
   static struct RgxO {
     <<makes>>
@@ -664,6 +666,7 @@ static table_delimiter_row                      = ctRegex!("[ ]*\n", "mg");
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.meta.rgx_files;
+@safe:
 static template spineRgxFiles() {
   static struct RgxFiles {
     <<prgmkup_rgx_filename_and_path>>
@@ -697,6 +700,7 @@ static src_formalised_file_path_parts           = ctRegex!(`(?P<pth>(?:[/a-zA-Z0
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.meta.rgx_yaml;
+@safe:
 static template spineRgxYamlTags() {
   static struct RgxYaml {
     <<meta_rgx_yaml>>
@@ -723,6 +727,7 @@ static yaml_tag_is_seq                          = ctRegex!(`:seq$`);
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.io_out.rgx_xhtml;
+@safe:
 static template spineRgxXHTML() {
   static struct RgxXHTML {
     <<sp_ch_xhtml_rgx>>
@@ -751,6 +756,7 @@ static line_break                               = ctRegex!(` [\\]{2}`, "m"); //
   regex: regular expressions used in sisu document parser
 +/
 module doc_reform.io_out.rgx_latex;
+@safe:
 static template spineRgxLSC() {
   static struct RgxLSC {
     <<sp_ch_latex_rgx>>
diff --git a/org/default_shared_snippets.org b/org/default_shared_snippets.org
index ed262e4..66041f3 100644
--- a/org/default_shared_snippets.org
+++ b/org/default_shared_snippets.org
@@ -25,6 +25,7 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.html_snippet;
+@safe:
 template htmlSnippet() {
   import
     std.file,
@@ -60,7 +61,7 @@ template htmlSnippet() {
     );
     return html_blank_default;
   }
-  @safe string special_characters_text(string _txt) {
+  string special_characters_text(string _txt) {
     mixin spineRgxOut;
     mixin spineRgxXHTML;
     static auto rgx = RgxO();
@@ -90,6 +91,7 @@ template htmlSnippet() {
   shared default settings
 +/
 module doc_reform.share.defaults;
+@safe:
 <<shared_messages>>
 #+END_SRC
 
@@ -99,7 +101,7 @@ module doc_reform.share.defaults;
 #+BEGIN_SRC d
 template Msg() {
   import std.stdio;
-  @safe auto Msg(I)(I doc_matters) {
+  auto Msg(I)(I doc_matters) {
     struct Msg_ {
       void v()(string message) {
         if (doc_matters.opt.action.vox_gt1) {
diff --git a/org/in_source_files.org b/org/in_source_files.org
index 267bdbc..2e21928 100644
--- a/org/in_source_files.org
+++ b/org/in_source_files.org
@@ -30,6 +30,7 @@
   meta_config_files.d
 +/
 module doc_reform.io_in.read_config_files;
+@safe:
 import
   std.file,
   std.path;
@@ -38,7 +39,6 @@ import
   doc_reform.io_in.paths_source,
   doc_reform.meta.rgx_files,
   doc_reform.meta.rgx;
-<<meta_config_file_in>>
 <<meta_config_file_hub_read_site_config>>
 <<meta_config_file_hub_read_document_config>>
 <<meta_config_file_hub_read_site_yaml>>
@@ -224,13 +224,13 @@ static template readConfigDoc() {
       if (config_file_str.length > 0) { break; }
     }
     struct _ConfContent {
-      @safe string filename() {
+      string filename() {
         return conf_filename;
       }
-      @safe string content() {
+      string content() {
         return config_file_str;
       }
-      @safe string filetype() {
+      string filetype() {
         string _ft = "";
         if (content.match(rgx.yaml_config)) {
           _ft = "yaml";
@@ -257,7 +257,7 @@ static template configReadSiteYAML() {
     doc_reform.io_in.paths_source,
     doc_reform.meta.rgx_files,
     doc_reform.meta.rgx;
-  @safe final YAMLDocument configReadSiteYAML(M,E)(M _manifested, E _env) {
+  final YAMLDocument configReadSiteYAML(M,E)(M _manifested, E _env) {
     string _configuration = configReadInSiteYAML!()(_manifested, _env);
     auto _conf_file_details = configFilePaths!()(_manifested, _env);
     string _conf_yaml_fn = _conf_file_details.config_filename_site;
@@ -272,7 +272,7 @@ static template configReadDocYAML() {
   import
     doc_reform.meta,
     doc_reform.io_in.paths_source;
-  @safe final YAMLDocument configReadDocYAML(M,E)(M _manifested, E _env) {
+  final YAMLDocument configReadDocYAML(M,E)(M _manifested, E _env) {
     string _configuration = configReadInDocYAML!()(_manifested, _env);
     auto _conf_file_details = configFilePaths!()(_manifested, _env);
     string _conf_yaml_fn = _conf_file_details.config_filename_document;
@@ -295,6 +295,7 @@ static template configReadDocYAML() {
   - if master file scan for addional files to import/insert
 +/
 module doc_reform.io_in.read_source_files;
+@safe:
 template spineRawMarkupContent() {
   import
     std.file,
@@ -309,7 +310,7 @@ template spineRawMarkupContent() {
   mixin spineRgxFiles;
   static auto rgx_files = RgxFiles();
   string[] _images=[];
-  @safe string[] _extract_images(S)(S content_block) {
+  string[] _extract_images(S)(S content_block) {
     string[] images_;
     string _content_block = content_block.to!string;
     if (auto m = _content_block.matchAll(rgx.image)) {
@@ -329,19 +330,19 @@ template spineRawMarkupContent() {
     string[], "insert_files",
     string[], "images"
   );
-  @safe auto spineRawMarkupContent(O,Fn)(O _opt_action, Fn fn_src) {
+  auto spineRawMarkupContent(O,Fn)(O _opt_action, Fn fn_src) {
     auto _0_header_1_body_content_2_insert_filelist_tuple
       = rawsrc.sourceContentSplitIntoHeaderAndBody(_opt_action, rawsrc.sourceContent(fn_src), fn_src);
     return _0_header_1_body_content_2_insert_filelist_tuple;
   }
   struct RawMarkupContent {
-    @safe final sourceContent(in string fn_src) {
+    final sourceContent(in string fn_src) {
       auto raw = MarkupRawUnit();
       string source_txt_str
         = raw.markupSourceReadIn(fn_src);
       return source_txt_str;
     }
-    @safe final auto sourceContentSplitIntoHeaderAndBody(O)(
+    final auto sourceContentSplitIntoHeaderAndBody(O)(
       O         _opt_action,
       in string source_txt_str,
       in string fn_src=""
@@ -390,7 +391,7 @@ template spineRawMarkupContent() {
       char[][], "insert_contents",
       string[], "images"
     );
-    @safe ContentsAndImages scan_subdoc_source(O)(
+    ContentsAndImages scan_subdoc_source(O)(
       O        _opt_action,
       char[][] markup_sourcefile_insert_content,
       string   fn_src
@@ -401,7 +402,7 @@ template spineRawMarkupContent() {
       } // end src subdoc (inserts) loop
       <<meta_inserts_scan_post>>
     }
-    @safe ContentsInsertsImages scan_master_src_for_insert_files_and_import_content(O)(
+    ContentsInsertsImages scan_master_src_for_insert_files_and_import_content(O)(
       O        _opt_action,
       char[][] sourcefile_body_content,
       string   fn_src
@@ -422,7 +423,7 @@ template spineRawMarkupContent() {
 
 #+NAME: meta_markup_source_raw_read_file_source_string
 #+BEGIN_SRC d
-@safe final private string readInMarkupSource(in char[] fn_src) {
+final private string readInMarkupSource(in char[] fn_src) {
   enforce(
     exists(fn_src) != 0,
     "file not found: «" ~
@@ -488,7 +489,7 @@ split is on first match of level A~ (which is required)
 
 #+NAME: meta_markup_source_raw_read_in_file
 #+BEGIN_SRC d
-@safe string markupSourceReadIn(in string fn_src) {
+string markupSourceReadIn(in string fn_src) {
   static auto rgx_files = RgxFiles();
   enforce(
     fn_src.match(rgx_files.src_pth_sst_or_ssm),
@@ -509,7 +510,7 @@ split is on first match of level A~ (which is required)
 
 #+NAME: meta_markup_source_raw_tuple_of_header_and_body
 #+BEGIN_SRC d
-@safe HeaderContentInsertsImages markupSourceHeaderContentRawLineTupleArray(in string source_txt_str) {
+HeaderContentInsertsImages markupSourceHeaderContentRawLineTupleArray(in string source_txt_str) {
   string[] file_insert_list = [];
   string[] images_list = [];
   char[][] hc = header0Content1(source_txt_str);
@@ -530,7 +531,7 @@ split is on first match of level A~ (which is required)
 
 #+NAME: meta_markup_source_raw_get_insert_source_line_array
 #+BEGIN_SRC d
-@safe final char[][] getInsertMarkupSourceContentRawLineArray(
+final char[][] getInsertMarkupSourceContentRawLineArray(
   in char[]    fn_src_insert,
   Regex!(char) rgx_file
 ) {
diff --git a/org/meta_conf_make_meta.org b/org/meta_conf_make_meta.org
index e3fe678..8b5fc12 100644
--- a/org/meta_conf_make_meta.org
+++ b/org/meta_conf_make_meta.org
@@ -237,6 +237,7 @@ import doc_reform.meta.conf_make_meta_structs;
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.conf_make_meta_structs;
+@safe:
 <<meta_defaults_template_structs_init>>
 <<meta_defaults_template_structs_setup>>
 <<meta_defaults_template_structs_composite_make_init>>
@@ -276,7 +277,7 @@ static auto mkup = InlineMarkup();
 
 #+NAME: meta_defaults_template_structs_setup
 #+BEGIN_SRC d
-@safe string url_markup(string line) {
+string url_markup(string line) {
   string line_ = line
     .replaceAll(
       rgx.smid_inline_link_markup_regular,
@@ -318,7 +319,7 @@ struct ConfCompositeMakeStr {
   string[][] substitute;
   string     texpdf_font;
 }
-struct confCompositeMakeBuild {
+@trusted struct confCompositeMakeBuild {
   string[] bold(string _mk) {
     string[] _out;
     if (_mk) {
@@ -568,6 +569,7 @@ JSONValue config_jsonstr = `{
   extract yaml header return struct
 +/
 module doc_reform.meta.conf_make_meta_yaml;
+@safe:
 template contentYAMLtoSpineStruct() {
   import
     std.algorithm,
@@ -1746,6 +1748,7 @@ if ("rights" in _yaml
   extract json header return json
 +/
 module doc_reform.meta.conf_make_meta_json;
+@safe:
 static template contentJSONtoSpineStruct() {
   import
     std.algorithm,
@@ -1763,7 +1766,7 @@ static template contentJSONtoSpineStruct() {
     doc_reform.meta.defaults,
     doc_reform.meta.rgx;
   ConfComposite _struct_composite;
-  @safe auto contentJSONtoSpineStruct(C,J,M)(C _struct_composite, J _json, M _manifested, string _identifier) {
+  auto contentJSONtoSpineStruct(C,J,M)(C _struct_composite, J _json, M _manifested, string _identifier) {
     mixin spineRgxIn;
     static auto rgx = RgxI();
     debug (json) {
diff --git a/org/ocda.org b/org/ocda.org
index 3a671ca..74c1f64 100644
--- a/org/ocda.org
+++ b/org/ocda.org
@@ -30,6 +30,7 @@ Process markup document, create document abstraction.
 // abstraction of sisu markup for downstream processing
 // metadoc_from_src.d
 module doc_reform.meta.metadoc_from_src;
+@safe:
 template docAbstraction() {
   <<docInitialize>>
   @system auto docAbstraction(CMM,Opt,Mf) (
@@ -1528,7 +1529,7 @@ struct DocHas_ {
     return tag_assoc;
   }
 }
-@safe auto doc_has() {
+auto doc_has() {
   return DocHas_();
 }
 // the doc to be returned
diff --git a/org/ocda_functions.org b/org/ocda_functions.org
index b6240e0..00e391d 100644
--- a/org/ocda_functions.org
+++ b/org/ocda_functions.org
@@ -30,6 +30,7 @@ Process markup document, create document abstraction.
 // abstraction of sisu markup for downstream processing
 // metadoc_from_src.d
 module doc_reform.meta.metadoc_from_src_functions;
+@safe:
 template docAbstractionFunctions() {
   <<docInitialize>>
   <<docAbstractionRelatedFunctions>>
@@ -145,11 +146,11 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - emitters
-@safe pure struct OCNemitter {
+pure struct OCNemitter {
   int ocn_digit, ocn_object_number, ocn_on_, ocn_off_, ocn_bkidx, ocn_bkidx_;
   string object_identifier;
   bool ocn_is_off;
-  @safe auto ocn_emitter(int ocn_status_flag) {
+  auto ocn_emitter(int ocn_status_flag) {
     OCNset ocn;
     assert(ocn_status_flag <= eN.ocn.reset);
     ocn_object_number              = ocn_bkidx = 0;
@@ -193,7 +194,7 @@ auto node_construct = NodeStructureMetadata();
   invariant() {
   }
 }
-@safe pure ObjGenericComposite obj_heading_ancestors()(
+pure ObjGenericComposite obj_heading_ancestors()(
   ObjGenericComposite  obj,
   string[]             lv_ancestors_txt,
 ) {
@@ -234,10 +235,10 @@ auto node_construct = NodeStructureMetadata();
   }
   return obj;
 }
-@safe static  OCNset ocn_emit(int ocn_status_flag) {
+static  OCNset ocn_emit(int ocn_status_flag) {
   return object_citation_number.ocn_emitter(ocn_status_flag);
 }
-@safe static uint[string] _check_ocn_status_()(
+static uint[string] _check_ocn_status_()(
   char[]       line,
   uint[string] pith,
 ) {
@@ -312,7 +313,7 @@ auto node_construct = NodeStructureMetadata();
   return ret;
 }
 // ↓ - reset object
-@safe static string[string] object_reset()(string[string] an_object) {
+static string[string] object_reset()(string[string] an_object) {
   an_object.remove("body_nugget");
   an_object.remove("substantive");
   an_object.remove("is");
@@ -330,7 +331,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - markup text by line
-@safe char[] font_faces_line()(char[] textline) {
+char[] font_faces_line()(char[] textline) {
   static auto rgx = RgxI();
   static auto mkup = InlineMarkup();
   if (textline.match(rgx.inline_faces_line)) {
@@ -350,7 +351,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return textline;
 }
-@safe auto inline_markup_faces(L)(L line) {
+auto inline_markup_faces(L)(L line) {
   static auto rgx = RgxI();
   static auto mkup = InlineMarkup();
   line = replaceAll!(m => mkup.quote_o ~ m[1] ~ mkup.quote_c)(line, rgx.within_quotes);
@@ -361,7 +362,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return line;
 }
-@safe static string links_and_images()(string obj_txt) {
+static string links_and_images()(string obj_txt) {
   static auto rgx = RgxI();
   static auto mkup = InlineMarkup();
   if (obj_txt.match(rgx.smid_inline_url_generic)) {
@@ -401,7 +402,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return obj_txt;
 }
-@safe char[] _doc_header_and_make_substitutions_(CMM)(
+char[] _doc_header_and_make_substitutions_(CMM)(
   char[]  line,
   CMM     conf_make_meta,
 ) {
@@ -416,7 +417,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return line;
 }
-@safe char[] _doc_header_and_make_substitutions_fontface_(CMM)(
+char[] _doc_header_and_make_substitutions_fontface_(CMM)(
   char[]  line,
   CMM     conf_make_meta,
 ) {
@@ -450,7 +451,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - para
-@safe string[string][string] inline_para_link_anchor()(
+string[string][string] inline_para_link_anchor()(
   string[string]          an_object,
   string[string]          tag_in_seg,
   string[string][string]  tag_assoc
@@ -466,7 +467,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return tag_assoc;
 }
-@safe ST_flow_para_match flow_para_match_()(
+ST_flow_para_match flow_para_match_()(
   char[]         line,
   string[string]  an_object,
   string          an_object_key,
@@ -529,7 +530,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - heading
-@safe ST_flow_heading_found flow_heading_found_()(
+ST_flow_heading_found flow_heading_found_()(
   char[]                line,
   string[string]        heading_match_str,
   string[]              _make_unmarked_headings,
@@ -614,7 +615,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_flow_heading_make_set flow_heading_make_set_()(
+ST_flow_heading_make_set flow_heading_make_set_()(
              char[]                line,
              int[string]           line_occur,
   return ref Regex!(char)[string]  heading_match_rgx,
@@ -662,7 +663,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe auto flow_heading_matched_(CMM)(
+auto flow_heading_matched_(CMM)(
   char[]          line,
   string[string]  an_object,
   int[string]     line_occur,
@@ -860,7 +861,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - table
-@safe ObjGenericComposite flow_table_instructions(H)(
+ObjGenericComposite flow_table_instructions(H)(
   ObjGenericComposite  table_object,
   H                    table_head,
 ) {
@@ -885,7 +886,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return table_object;
 }
-@safe ST_flow_table_array_munge flow_table_array_munge()(
+ST_flow_table_array_munge flow_table_array_munge()(
   ObjGenericComposite  table_object,
   string[][]           table_array,
 ) {
@@ -1428,7 +1429,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - images
-@safe string[] extract_images()(string content_block) {
+string[] extract_images()(string content_block) {
   static auto rgx = RgxI();
   string[] images_;
   if (auto m = content_block.matchAll(rgx.image)) {
@@ -1483,7 +1484,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - links
-@safe auto _links(O)(O obj) {
+auto _links(O)(O obj) {
   static auto rgx = RgxI();
   if (auto m = obj.text.match(rgx.inline_link_stow_uri)) {
     debug(links) {
@@ -1512,7 +1513,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - text by line (blocks etc.)
-@safe ST_txt_by_line_block_start txt_by_line_block_start()(
+ST_txt_by_line_block_start txt_by_line_block_start()(
   char[]         line,
   uint[string]   pith,
   uint[string]   dochas,
@@ -1646,7 +1647,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_txt_by_line_block_generic txt_by_line_block_group()(
+ST_txt_by_line_block_generic txt_by_line_block_group()(
   char[]          line,
   string[string]  an_object,
   uint[string]    pith,
@@ -1684,7 +1685,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_txt_by_line_block_generic txt_by_line_block_block()(
+ST_txt_by_line_block_generic txt_by_line_block_block()(
   char[]          line,
   string[string]  an_object,
   uint[string]    pith,
@@ -1722,7 +1723,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_txt_by_line_block_poem txt_by_line_block_poem(CMM)(
+ST_txt_by_line_block_poem txt_by_line_block_poem(CMM)(
   char[]          line,
   string[string]  an_object,
   uint[string]    pith,
@@ -1924,7 +1925,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_txt_by_line_block_generic txt_by_line_block_code()(
+ST_txt_by_line_block_generic txt_by_line_block_code()(
   char[]          line,
   string[string]  an_object,
   uint[string]    pith,
@@ -2037,7 +2038,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return ret;
 }
-@safe ST_txt_by_line_block_generic txt_by_line_block_quote()(
+ST_txt_by_line_block_generic txt_by_line_block_quote()(
   char[]          line,
   string[string]  an_object,
   uint[string]    pith,
@@ -2220,7 +2221,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - object set
-@safe ObjGenericComposite set_object_heading()(
+ObjGenericComposite set_object_heading()(
   string level,
   string part,
   string section,
@@ -2251,7 +2252,7 @@ auto node_construct = NodeStructureMetadata();
   }
   return comp_obj;
 }
-@safe ObjGenericComposite set_object_generic()(
+ObjGenericComposite set_object_generic()(
   string part,
   string section,
   string type,
@@ -2280,7 +2281,7 @@ auto node_construct = NodeStructureMetadata();
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - object inline munge
-@safe static struct ObjInlineMarkupMunge {
+static struct ObjInlineMarkupMunge {
   string[string] obj_txt;
   int n_foot, n_foot_reg, n_foot_sp_asterisk, n_foot_sp_plus;
   string asterisks_, plus_;
@@ -2294,7 +2295,7 @@ auto node_construct = NodeStructureMetadata();
     n_foot_sp_asterisk              = 0;
     n_foot_sp_plus                  = 0;
   }
-  @safe static auto images()(string obj_txt_in) {
+  static auto images()(string obj_txt_in) {
     static auto mng = InlineMarkup();
     // url matched
     obj_txt_in = obj_txt_in.replaceAll(rgx.inline_notes_al_special, ""); // TODO reinstate when special footnotes are implemented
@@ -2318,7 +2319,7 @@ auto node_construct = NodeStructureMetadata();
     }
     return obj_txt_in;
   }
-  @safe ST_txtPlusHasFootnotes footnotes_endnotes_markup_and_number_or_stars()(string obj_txt_in, bool reset_note_numbers) {
+  ST_txtPlusHasFootnotes footnotes_endnotes_markup_and_number_or_stars()(string obj_txt_in, bool reset_note_numbers) {
     // endnotes (regular)
     bool flg_notes_reg  = false;
     bool flg_notes_star = false;
@@ -2390,7 +2391,7 @@ auto node_construct = NodeStructureMetadata();
     }
     return ret;
   }
-  @safe private ST_txtPlusHasFootnotesUrlsImages object_notes_and_links_()(
+  private ST_txtPlusHasFootnotesUrlsImages object_notes_and_links_()(
     string obj_txt_in,
     bool reset_note_numbers = false
   ) {
@@ -2445,7 +2446,7 @@ auto node_construct = NodeStructureMetadata();
     }
     return ret;
   }
-  @safe private ST_txtPlusHasFootnotesUrlsImages object_only_()(
+  private ST_txtPlusHasFootnotesUrlsImages object_only_()(
     string obj_txt_in,
     bool reset_note_numbers = false
   ) {
@@ -2466,7 +2467,7 @@ auto node_construct = NodeStructureMetadata();
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_heading()(
+  ST_txtPlusHasFootnotesUrlsImages munge_heading()(
     string obj_txt_in,
     bool reset_note_numbers = false
   ) {
@@ -2481,7 +2482,7 @@ auto node_construct = NodeStructureMetadata();
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_para()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_para()(string obj_txt_in) {
     obj_txt["munge"] = (obj_txt_in)
       .replaceFirst(rgx.para_attribs, "")
       .replaceFirst(rgx.object_number_off_all, "")
@@ -2493,44 +2494,44 @@ auto node_construct = NodeStructureMetadata();
     }
     return ret;
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_quote()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_quote()(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in.split("\n\n").join(" \\\\\n \\\\\n"));
     return ret;
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_group(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_group(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in.split("\n\n").join("\n" ~ mkup.br_line_spaced ~ "\n"));
     return ret;
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_block()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_block()(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
     return ret;
   }
   invariant() {
   }
-  @safe auto munge_verse()(string obj_txt_in) {
+  auto munge_verse()(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
     return ret;
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_code()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_code()(string obj_txt_in) {
     obj_txt_in = obj_txt_in.replaceAll(rgx.space, mkup.nbsp);
     ST_txtPlusHasFootnotesUrlsImages ret = object_only_(obj_txt_in);
     return ret;
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_table()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_table()(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
     return ret;
   }
   invariant() {
   }
-  @safe ST_txtPlusHasFootnotesUrlsImages munge_comment()(string obj_txt_in) {
+  ST_txtPlusHasFootnotesUrlsImages munge_comment()(string obj_txt_in) {
     ST_txtPlusHasFootnotesUrlsImages ret = object_only_(obj_txt_in);
     return ret;
   }
@@ -2551,7 +2552,7 @@ static struct ObjInlineMarkup {
   static auto munge = ObjInlineMarkupMunge();
   string[string] obj_txt;
   string anchor_tag = "";
-  @safe ST_txtAndAnchorTagPlusHasFootnotesUrlsImages obj_inline_markup_and_anchor_tags_and_misc(CMM)(
+  ST_txtAndAnchorTagPlusHasFootnotesUrlsImages obj_inline_markup_and_anchor_tags_and_misc(CMM)(
     string[string]   obj_,
     string           obj_key_,
     CMM              conf_make_meta,
@@ -2640,14 +2641,14 @@ static struct ObjInlineMarkup {
   }
   invariant() {
   }
-  @safe auto _clean_heading_toc_()(
+  auto _clean_heading_toc_()(
     char[] heading_toc_,
   ) {
    auto m = (cast(char[]) heading_toc_).matchFirst(rgx.heading);
    heading_toc_ = (m.post).replaceAll(rgx.inline_notes_curly_gen, "");
    return heading_toc_;
   };
-  @safe ST_flow_table_of_contents_gather_headings flow_table_of_contents_gather_headings(CMM)( //
+  ST_flow_table_of_contents_gather_headings flow_table_of_contents_gather_headings(CMM)( //
     string[string]         obj_,
     CMM                    conf_make_meta,
     string[string]         tag_in_seg,
@@ -2738,7 +2739,7 @@ private:
   static string heading_number_auto_composite = "";
   static string heading_number_auto_composite_segname = "";
   static bool[] auto_heading_numbering = [ true, true, true, true];
-  @safe static string _configured_auto_heading_numbering_and_segment_anchor_tags(CMM)(
+  static string _configured_auto_heading_numbering_and_segment_anchor_tags(CMM)(
     string           munge_,
     string[string]   obj_,
     CMM              conf_make_meta,
@@ -2880,7 +2881,7 @@ private:
     return munge_;
   }
   static int heading_num_lev1 = 0;
-  @safe static string _make_segment_anchor_tags_if_none_provided()(
+  static string _make_segment_anchor_tags_if_none_provided()(
     string munge_,
     string lev_,
     bool   _new_doc
@@ -2925,7 +2926,7 @@ private:
 // ↓ - object attributes
 struct ObjAttributes {
   string[string] _obj_attrib;
-  @safe string obj_attributes()(
+  string obj_attributes()(
     string              obj_is_,
     string              obj_raw,
     ObjGenericComposite comp_obj_,
@@ -2988,7 +2989,7 @@ struct ObjAttributes {
   }
   private:
   string _obj_attributes;
-  @safe string txt_para_and_blocks()(string obj_txt_in) {
+  string txt_para_and_blocks()(string obj_txt_in) {
     if (obj_txt_in.matchFirst(rgx.para_bullet)) {
       _obj_attributes =" \"bullet\": \"true\","
       ~ " \"indent_hang\": 0,"
@@ -3012,7 +3013,7 @@ struct ObjAttributes {
     }
     return _obj_attributes;
   }
-  @safe string txt_heading()(string obj_txt_in) {
+  string txt_heading()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"para\","
     ~ " \"is\": \"heading\"";
@@ -3020,7 +3021,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_para()(string obj_txt_in) {
+  string txt_para()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"para\","
     ~ " \"is\": \"para\"";
@@ -3028,7 +3029,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_quote()(string obj_txt_in) {
+  string txt_quote()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"quote\"";
@@ -3036,7 +3037,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_group()(string obj_txt_in) {
+  string txt_group()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"group\"";
@@ -3044,7 +3045,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_block()(string obj_txt_in) {
+  string txt_block()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"block\"";
@@ -3052,7 +3053,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_verse()(string obj_txt_in) {
+  string txt_verse()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"verse\"";
@@ -3060,7 +3061,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_code()(string obj_txt_in) {
+  string txt_code()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"code\"";
@@ -3068,7 +3069,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_table()(string obj_txt_in) {
+  string txt_table()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"content\","
     ~ " \"of\": \"block\","
     ~ " \"is\": \"table\"";
@@ -3076,7 +3077,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string txt_comment()(string obj_txt_in) {
+  string txt_comment()(string obj_txt_in) {
     _obj_attributes = " \"use\": \"comment\","
     ~ " \"of\": \"comment\","
     ~ " \"is\": \"comment\"";
@@ -3084,7 +3085,7 @@ struct ObjAttributes {
   }
   invariant() {
   }
-  @safe string _set_additional_values_parse_as_json()(
+  string _set_additional_values_parse_as_json()(
     string              _obj_attrib,
     string              obj_is_,
     ObjGenericComposite comp_obj_,
@@ -3115,7 +3116,7 @@ struct ObjAttributes {
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - object tags
-@safe pure ObjGenericComposite obj_dom_structure_set_markup_tags()(
+pure ObjGenericComposite obj_dom_structure_set_markup_tags()(
   ObjGenericComposite  obj,
   int[]                dom,
   int                  lev
@@ -3157,7 +3158,7 @@ struct ObjAttributes {
   obj.metainfo.dom_structure_markedup_tags_status = dom.dup;
   return obj;
 }
-@safe pure ObjGenericComposite obj_dom_set_collapsed_tags()(
+pure ObjGenericComposite obj_dom_set_collapsed_tags()(
   ObjGenericComposite  obj,
   int[]                dom,
   int                  lev
@@ -3323,7 +3324,7 @@ struct NotesSection {
   int previous_count;
   int mkn;
   static auto rgx = RgxI();
-  @safe private auto gather_notes_for_endnote_section(
+  private auto gather_notes_for_endnote_section(
     ObjGenericComposite[] contents_am,
     string[string]        tag_in_seg,
     int                   cntr,
@@ -3401,7 +3402,7 @@ struct NotesSection {
     }
     return object_notes;
   }
-  @safe private auto gathered_notes() {
+  private auto gathered_notes() {
     string[][string] endnotes_;
     if (object_notes.length > 1) {
       endnotes_["notes"] = (object_notes["notes"].split(rgx.break_string))[0..$-1];
@@ -3412,7 +3413,7 @@ struct NotesSection {
     }
     return endnotes_;
   }
-  @safe private ST_endnotes backmatter_endnote_objects(O)(
+  private ST_endnotes backmatter_endnote_objects(O)(
     OCNset         obj_cite_digits,
     O              opt_action,
   ) {
@@ -3552,7 +3553,7 @@ struct BookIndexNuggetHash {
   string[] object_numbers;
   string[][string][string] bi_hash_nugget;
   string[] bi_main_terms_split_arr;
-  @safe string[][string][string] bookindex_nugget_hash(S)(
+  string[][string][string] bookindex_nugget_hash(S)(
     string bookindex_section,
     OCNset obj_cite_digits,
     S      tag_in_seg,
@@ -3620,7 +3621,7 @@ struct BookIndexNuggetHash {
 }
 struct BookIndexReportIndent {
   int mkn, skn;
-  @safe void bookindex_report_indented()(
+  void bookindex_report_indented()(
     string[][string][string] bookindex_unordered_hashes
   ) {
     auto mainkeys
@@ -3646,7 +3647,7 @@ struct BookIndexReportSection {
   int  mkn, skn;
   static auto rgx = RgxI();
   static auto munge = ObjInlineMarkupMunge();
-  @safe void bookindex_write_section()(
+  void bookindex_write_section()(
     string[][string][string] bookindex_unordered_hashes
   ) {
     auto mainkeys =
@@ -4317,7 +4318,7 @@ struct NodeStructureMetadata {
   int obj_cite_digit;
   int[string] p_; // p_ parent_
   static auto rgx = RgxI();
-  @safe ObjGenericComposite node_location_emitter(La,Ta)(
+  ObjGenericComposite node_location_emitter(La,Ta)(
     string         lev_markup_number,
     string[string] tag_in_seg,
     La             lev_anchor_tag,
@@ -4366,7 +4367,7 @@ struct NodeStructureMetadata {
   }
   invariant() {
   }
-  @safe ObjGenericComposite node_emitter_heading(O,TaL,TA,SOAT)(
+  ObjGenericComposite node_emitter_heading(O,TaL,TA,SOAT)(
     O              an_object,
     string[string] tag_in_seg,
     TaL            lev_anchor_tag,
@@ -4565,7 +4566,7 @@ struct NodeStructureMetadata {
   ObjGenericComposite[] the_document_bookindex_section,
   ObjGenericComposite[] the_document_blurb_section,
 ) {
-  @safe int[] _get_ancestors_markup(ObjGenericComposite obj, int[] _ancestors_markup) {
+  int[] _get_ancestors_markup(ObjGenericComposite obj, int[] _ancestors_markup) {
     if (obj.metainfo.is_a == "heading") {
       debug(dom) { writeln(obj.text); }
       if (obj.metainfo.heading_lev_markup == 1) {
@@ -4648,7 +4649,7 @@ struct NodeStructureMetadata {
     debug(ancestor_markup) { writeln("marked up: ", _ancestors_markup); }
     return _ancestors_markup;
   }
-  @safe int[] _get_ancestors_collapsed(ObjGenericComposite obj, int[] _ancestors_collapsed) {
+  int[] _get_ancestors_collapsed(ObjGenericComposite obj, int[] _ancestors_collapsed) {
     if (obj.metainfo.is_a == "heading") {
       if (obj.metainfo.heading_lev_collapsed == 1) {
         _ancestors_collapsed = [
@@ -4771,7 +4772,7 @@ struct NodeStructureMetadata {
 #+BEGIN_SRC d
 // ↓ - descendants
 // descendants
-@safe auto after_doc_get_descendants()(ObjGenericComposite[] document_sections) {
+auto after_doc_get_descendants()(ObjGenericComposite[] document_sections) {
   int[string] _heading_ocn_descendants;
   string[] _ocn_open_key = ["","","","","","","",""];
   auto _doc_sect_length = document_sections.length - 1;
@@ -4827,7 +4828,7 @@ struct NodeStructureMetadata {
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 // ↓ - assertions
-@safe pure void assertions_doc_structure()(
+pure void assertions_doc_structure()(
   string[string]  an_object,
   string          an_object_key,
   int[string]     lv
@@ -5405,7 +5406,7 @@ struct NodeStructureMetadata {
 #+NAME: docSectKeysSeq
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
-@safe auto docSectKeysSeq(string[][string] document_section_keys_sequenced) {
+auto docSectKeysSeq(string[][string] document_section_keys_sequenced) {
   struct doc_sect_keys_seq {
     string[] scroll() {
       return document_section_keys_sequenced["scroll"];
diff --git a/org/ocda_obj_setter.org b/org/ocda_obj_setter.org
index 4791dcf..e009a67 100644
--- a/org/ocda_obj_setter.org
+++ b/org/ocda_obj_setter.org
@@ -33,6 +33,7 @@ set abstracted objects for downstream processing
   metadoc_object_setter.d
 +/
 module doc_reform.meta.metadoc_object_setter;
+@safe:
 template ObjectSetter() {
   /+ structs +/
   <<meta_structs_docObjects>>
@@ -66,25 +67,25 @@ struct DocObj_MetaInfo_ {
   int                    o_n_bibliography                     = 0;
   int                    o_n_book_index                       = 0;
   int                    o_n_blurb                            = 0;
-  @safe  string object_number_substantive() const @property {
+   string object_number_substantive() const @property {
     return (o_n_substantive == 0) ? "" : o_n_substantive.to!string;
   }
-  @safe string object_number_non_substantive() const @property {
+  string object_number_non_substantive() const @property {
     return (o_n_non_substantive == 0) ? "" : o_n_non_substantive.to!string;
   }
-  @safe string object_number_glossary() const @property {
+  string object_number_glossary() const @property {
     return (o_n_glossary == 0) ? "" : o_n_glossary.to!string;
   }
-  @safe string object_number_bibliography() const @property {
+  string object_number_bibliography() const @property {
     return (o_n_bibliography == 0) ? "" : o_n_bibliography.to!string;
   }
-  @safe string object_number_book_index() const @property {
+  string object_number_book_index() const @property {
     return (o_n_book_index == 0) ? "" : o_n_book_index.to!string;
   }
-  @safe string object_number_blurb() const @property {
+  string object_number_blurb() const @property {
     return (o_n_blurb == 0) ? "" : o_n_blurb.to!string;
   }
-  @safe string marked_up_level() const @property {
+  string marked_up_level() const @property {
     string _out;
     switch (heading_lev_markup) {
     case 0  : _out = "A"; break;
@@ -99,7 +100,7 @@ struct DocObj_MetaInfo_ {
     }
     return _out;
   }
-  @safe string object_number() const @property {
+  string object_number() const @property {
     return (ocn == 0) ? "" : ocn.to!string;
   }
   bool                   object_number_off                    = false;
@@ -387,7 +388,7 @@ enum Status { off, on, }
 enum OCNtype { ocn, non, bkidx, }
 enum DomTags { none, open, close, close_and_open, open_still, }
 enum Substitute { match, markup, }
-@safe static auto eN() {
+static auto eN() {
   struct _e {
     enum bi {
       off,
diff --git a/org/out_curate_metadata.org b/org/out_curate_metadata.org
index 7daa7ce..470fc17 100644
--- a/org/out_curate_metadata.org
+++ b/org/out_curate_metadata.org
@@ -31,8 +31,9 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_curate;
+@safe:
 template spineMetaDocCurate() {
-  @safe auto spineMetaDocCurate(T,H)(
+  auto spineMetaDocCurate(T,H)(
     T  doc_matters,
     H  hvst,
   ) {
@@ -125,6 +126,7 @@ return hvst.curate;
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_curate_topics;
+@safe:
   import
     std.algorithm,
     std.array,
@@ -469,6 +471,7 @@ try {
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_curate_authors;
+@safe:
   import
     std.algorithm,
     std.array,
@@ -824,7 +827,7 @@ string theme_light_1 = format(q"┃
 
 #+NAME: curated_html_search
 #+BEGIN_SRC d
-@safe string inline_search_form(M)(
+string inline_search_form(M)(
   M  _make_and_meta_truct,
 ) {
   string o;
diff --git a/org/out_latex.org b/org/out_latex.org
index 7f31c3c..8783da8 100644
--- a/org/out_latex.org
+++ b/org/out_latex.org
@@ -27,6 +27,7 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.latex;
+@safe:
 <<Template_paper_latex>>
 <<Template_output_latex>>
 <<Template_latex_init>>
@@ -691,7 +692,7 @@ string mm(uint mmi) {
   return _mm;
 }
 struct PaperType {
-  @safe auto a4() {
+  auto a4() {
     struct A4 {
       auto portrait() {
         struct V {
@@ -742,7 +743,7 @@ struct PaperType {
     }
     return A4();
   }
-  @safe auto a5() {
+  auto a5() {
     struct A5 {
       auto portrait() {
         struct V {
@@ -793,7 +794,7 @@ struct PaperType {
     }
     return A5();
   }
-  @safe auto b4() {
+  auto b4() {
     struct B4 {
       auto portrait() {
         struct V {
@@ -844,7 +845,7 @@ struct PaperType {
     }
     return B4();
   }
-  @safe auto letter() {
+  auto letter() {
     struct Letter {
       auto portrait() {
         struct V {
@@ -895,7 +896,7 @@ struct PaperType {
     }
     return Letter();
   }
-  @safe auto legal() {
+  auto legal() {
     struct Legal {
       auto portrait() {
         struct V {
@@ -961,7 +962,7 @@ struct PaperType {
 
 #+NAME: Function_shared_special_characters_to_escape_operations
 #+BEGIN_SRC d
-@safe string sp_char_ops()(
+string sp_char_ops()(
   string      _txt,
 ) {
   string _unescape_sp_char_esc()(string _txt) {
@@ -989,7 +990,7 @@ struct PaperType {
 
 #+NAME: Function_shared_special_characters_to_escape_object
 #+BEGIN_SRC d
-@safe string sp_char_esc(O)(
+string sp_char_esc(O)(
   string      _txt,
   const    O  obj,
 ) {
@@ -1004,7 +1005,7 @@ struct PaperType {
 
 #+NAME: Function_shared_special_characters_to_escape_text
 #+BEGIN_SRC d
-@safe string sp_char_esc_txt()(
+string sp_char_esc_txt()(
   string      _txt,
 ) {
   _txt = _txt.sp_char_ops;
@@ -1016,7 +1017,7 @@ struct PaperType {
 
 #+NAME: Function_shared_marked_linebreaks_newline_to_latex
 #+BEGIN_SRC d
-@safe string marked_linebreaks_newlines()(
+string marked_linebreaks_newlines()(
   string      _txt,
 ) {
   _txt = _txt.split(rgx.br_linebreaks_newlines).join("\\br\n").strip;
@@ -1028,7 +1029,7 @@ struct PaperType {
 *** not used latex \escape special characters UNUSED
 
 #+BEGIN_SRC d
-@safe string sp_char_esc_()(
+string sp_char_esc_()(
   string      _txt,
 ) {
   _txt = replaceAll!(m => "\\" ~ m[1])(_txt, rgx_sc.latex_special_char);
@@ -1043,7 +1044,7 @@ struct PaperType {
 
 #+NAME: Function_shared_fontface
 #+BEGIN_SRC d
-@safe string fontface()(
+string fontface()(
   string      _txt,
 ) {
 _txt = _txt
@@ -1066,7 +1067,7 @@ _txt = _txt
 
 #+NAME: Function_shared_leading_hardspaces
 #+BEGIN_SRC d
-@safe string leading_hardspaces()(
+string leading_hardspaces()(
   string      _txt,
 ) {
   string hardspaces(string _spaces) {
@@ -1083,7 +1084,7 @@ _txt = _txt
 
 #+NAME: output_latex_shared_character_nbsp_to_hardspace_
 #+BEGIN_SRC d
-@safe string nbsp_char_replace()(string _txt) {
+string nbsp_char_replace()(string _txt) {
   if (_txt.match(rgx.nbsp_char)) {
     _txt = _txt.replaceAll(rgx.nbsp_char, "{\\s}");
   }
@@ -1095,7 +1096,7 @@ _txt = _txt
 
 #+NAME: Function_shared_character_nbsp_to_hardspace
 #+BEGIN_SRC d
-@safe string nbsp_char()(string _txt) {
+string nbsp_char()(string _txt) {
   if (_txt.match(rgx.nbsp_char)) {
     foreach (m; _txt.matchAll(rgx.nbsp_chars)) {
       int spaces_ = 0;
@@ -1113,7 +1114,7 @@ _txt = _txt
 
 #+NAME: Function_shared_character_spaces_to_hardspace
 #+BEGIN_SRC d
-@safe string spaces_to_nbsp()(string _txt) {
+string spaces_to_nbsp()(string _txt) {
   if (_txt.match(rgx.spaces_keep)) {
     foreach (m; _txt.matchAll(rgx.spaces_keep)) {
       int spaces_ = 0;
@@ -1131,7 +1132,7 @@ _txt = _txt
 
 #+NAME: Function_shared_character_nbsp_to_space
 #+BEGIN_SRC d
-@safe string nbsp_char_to_space()(string _txt) {
+string nbsp_char_to_space()(string _txt) {
   if (_txt.match(rgx.nbsp_char)) {
     _txt  = _txt.replaceAll(rgx.nbsp_char, " ");
   }
@@ -1144,7 +1145,7 @@ _txt = _txt
 
 #+NAME: Function_shared_links_and_images
 #+BEGIN_SRC d
-@safe string links_and_images(O,M)(
+string links_and_images(O,M)(
   string      _txt,
   const    O  obj,
            M  doc_matters,
@@ -1198,7 +1199,7 @@ _txt = _txt
 
 #+NAME: Function_shared_footnotes
 #+BEGIN_SRC d
-@safe string footnotes()(
+string footnotes()(
   string      _txt,
 ) {
   if (_txt.match(rgx.inline_notes_al_gen)) {
@@ -1219,7 +1220,7 @@ _txt = _txt
 
 #+NAME: Function_shared_footnotes_remove
 #+BEGIN_SRC d
-@safe string remove_footnotes()(
+string remove_footnotes()(
   string      _txt,
 ) {
   if (_txt.match(rgx.inline_notes_al_gen)) {
@@ -1234,7 +1235,7 @@ _txt = _txt
 
 #+NAME: Function_shared_para
 #+BEGIN_SRC d
-@safe string para(O)(
+string para(O)(
   string      _txt,
   O           obj,
 ) {
@@ -1254,7 +1255,7 @@ _txt = _txt
 
 #+NAME: Function_shared_bookindex
 #+BEGIN_SRC d
-@safe string bookindex(O)(
+string bookindex(O)(
   string      _txt,
   O           obj,
 ) {
@@ -1275,7 +1276,7 @@ _txt = _txt
 
 #+NAME: Function_head_bullets_and_indentation
 #+BEGIN_SRC d
-@safe string bullets_and_indentation(O)(
+string bullets_and_indentation(O)(
   string      _txt,
   O           obj,
 ) {
@@ -1320,7 +1321,7 @@ _txt = _txt
 
 #+NAME: Function_shared_heading
 #+BEGIN_SRC d
-  @safe string heading(O,M)(
+  string heading(O,M)(
     string      _txt,
     O           obj,
     M           doc_matters,
diff --git a/org/out_metadata.org b/org/out_metadata.org
index 0b20133..e048abd 100644
--- a/org/out_metadata.org
+++ b/org/out_metadata.org
@@ -26,8 +26,9 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.metadata;
+@safe:
 template outputMetadata() {
-  @safe void outputMetadata(T)( T  doc_matters) {
+  void outputMetadata(T)( T  doc_matters) {
     <<curated_html_search>>
     <<output_imports>>
 <<curated_html_themes_0>>
@@ -274,7 +275,7 @@ metadata_write_output(doc_matters, metadata_);
 
 #+NAME: output_metadata_write
 #+BEGIN_SRC d
-@safe void metadata_write_output(M)(M doc_matters, string[] metadata_) {
+void metadata_write_output(M)(M doc_matters, string[] metadata_) {
   auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
   try {
     if (!exists(pth_html.base)) {
@@ -612,7 +613,7 @@ string theme_light_1 = format(q"┃
 
 #+NAME: curated_html_search
 #+BEGIN_SRC d
-@safe string inline_search_form(M)(
+string inline_search_form(M)(
   M  doc_matters,
 ) {
   string o;
diff --git a/org/out_odt.org b/org/out_odt.org
index 935b040..022fdc7 100644
--- a/org/out_odt.org
+++ b/org/out_odt.org
@@ -51,6 +51,7 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.odt;
+@safe:
 template formatODT() {
   <<output_imports>>
   mixin spineRgxOut;
@@ -145,7 +146,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_0
 #+BEGIN_SRC d
-@safe string _tags(O)(const O obj) {
+string _tags(O)(const O obj) {
   string _tags = "";
   if (obj.tags.anchor_tags.length > 0) {
     foreach (tag_; obj.tags.anchor_tags) {
@@ -169,7 +170,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_1
 #+BEGIN_SRC d
-@safe string _xhtml_anchor_tags(O)(O obj) {
+string _xhtml_anchor_tags(O)(O obj) {
   const(string[]) anchor_tags = obj.tags.anchor_tags;
   string tags="";
   if (anchor_tags.length > 0) {
@@ -187,7 +188,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_2
 #+BEGIN_SRC d
-@safe string obj_num(O)(const O obj) { // TODO
+string obj_num(O)(const O obj) { // TODO
   string _on;
   _on = (obj.metainfo.object_number.empty)
   ? ""
@@ -203,7 +204,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_3
 #+BEGIN_SRC d
-@safe string _footnotes()(string _txt) {
+string _footnotes()(string _txt) {
   static auto rgx = RgxO();
   static auto rgx_xhtml = RgxXHTML();
   _txt = _txt.replaceAll(
@@ -229,7 +230,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_4
 #+BEGIN_SRC d
-@safe string _bullet(O)(const O obj) {
+string _bullet(O)(const O obj) {
   string _b = "";
   if (obj.attrib.bullet) {
     _b = format(q"┃● ┃",);
@@ -242,7 +243,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_5
 #+BEGIN_SRC d
-@safe string _indent(O)(string _txt, const O obj) { // TODO
+string _indent(O)(string _txt, const O obj) { // TODO
   // if (obj.attrib.indent_base > 0 ||
   //   obj.attrib.indent_hang > 0
   // ) {
@@ -356,7 +357,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_6
 #+BEGIN_SRC d
-@safe string _block_type_delimiters(O)(string[] _block_lines, const O obj) { // TODO
+string _block_type_delimiters(O)(string[] _block_lines, const O obj) { // TODO
   string _block = "";
   foreach (i, _line; _block_lines) {
     _line = _footnotes(_line);
@@ -397,7 +398,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_7
 #+BEGIN_SRC d
-@safe string _special_characters(O)(string _txt, const O obj) {
+string _special_characters(O)(string _txt, const O obj) {
   _txt = _txt
     .replaceAll(rgx_xhtml.ampersand,    "&amp;")
     .replaceAll(rgx_xhtml.quotation,    "&#34;")
@@ -412,7 +413,7 @@ template outputODT() {
 
 #+NAME: odt_format_objects_8
 #+BEGIN_SRC d
-@safe string _preserve_white_spaces(O)(string _txt, const O obj) {
+string _preserve_white_spaces(O)(string _txt, const O obj) {
   if (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block") {
     _txt = _txt
       .replaceAll(rgx.space,      "&#160;");
@@ -445,9 +446,9 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_10
 #+BEGIN_SRC d
-@safe auto _obj_num(O)(O obj) { // NOT USED YET
+auto _obj_num(O)(O obj) { // NOT USED YET
   struct objNum {
-    @safe string reference() {
+    string reference() {
       return format(q"┃<text:span text:style-name="Span_subscript">
     <text:bookmark-start text:name="%s"/>
     <text:bookmark-end text:name="%s"/>
@@ -456,7 +457,7 @@ string _font_face(string _txt){
         obj.object_number,
       );
     }
-    @safe string display() {
+    string display() {
       return format(q"┃<text:span text:style-name="Span_subscript">
   %s%s%s
   </text:span>┃",
@@ -474,7 +475,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_11
 #+BEGIN_SRC d
-@safe string _break_page()() {
+string _break_page()() {
   return format(q"┃
 <text:p text:style-name="P_normal_page_new"/>
 ┃",
@@ -483,7 +484,7 @@ string _font_face(string _txt){
 #+END_SRC
 
 #+BEGIN_SRC d
-@safe string _break_page()() {
+string _break_page()() {
   return format(q"┃
 <text:p text:style-name="P_page_break"> </text:p>
 <text:p text:style-name="P_normal_page_new"/>┃",
@@ -495,7 +496,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_12
 #+BEGIN_SRC d
-@safe string _empty_line_break(O)(string _txt, const O obj) {
+string _empty_line_break(O)(string _txt, const O obj) {
   if (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block") {
     _txt = _txt
       .replaceAll(rgx.br_empty_line,    "<br />");
@@ -508,7 +509,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_13
 #+BEGIN_SRC d
-@safe string _links(O)(string _txt, const O obj) {
+string _links(O)(string _txt, const O obj) {
   if (obj.metainfo.is_a != "code") {
     if (obj.metainfo.is_a == "toc") {
       _txt = replaceAll!(m =>
@@ -554,7 +555,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_14
 #+BEGIN_SRC d
-@safe string _images(O)(string _txt, const O obj) {
+string _images(O)(string _txt, const O obj) {
   if (_txt.match(rgx.inline_image)) {
     _txt = _txt
       .replaceAll(rgx.inline_image,
@@ -571,7 +572,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_15
 #+BEGIN_SRC d
-@safe string markup(O)(const O obj) {
+string markup(O)(const O obj) {
   /+ markup TODO +/
   string _txt = obj.text;
   _txt = _special_characters(_txt, obj);     // TODO & why both obj & obj.text, consider also in output_xmls.org
@@ -593,7 +594,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_16
 #+BEGIN_SRC d
-@safe string heading(O,M)(
+string heading(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -643,7 +644,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_17
 #+BEGIN_SRC d
-@safe string para(O,M)(
+string para(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -669,7 +670,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_18
 #+BEGIN_SRC d
-@safe string quote(O,M)(
+string quote(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -690,7 +691,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_19
 #+BEGIN_SRC d
-@safe string group(O,M)(
+string group(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -725,7 +726,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_20
 #+BEGIN_SRC d
-@safe string block(O,M)(
+string block(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -748,7 +749,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_21
 #+BEGIN_SRC d
-@safe string verse(O,M)(
+string verse(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -767,7 +768,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_22
 #+BEGIN_SRC d
-@safe string code(O,M)(
+string code(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -821,7 +822,7 @@ string _font_face(string _txt){
 
 #+NAME: odt_format_objects_23
 #+BEGIN_SRC d
-@safe Tuple!(string, string) tablarize(O)(
+Tuple!(string, string) tablarize(O)(
   const        O    obj,
   string            _txt,
 ) {
@@ -862,7 +863,7 @@ string _font_face(string _txt){
 #+NAME: odt_format_objects_24
 #+BEGIN_SRC d
 int _table_number = 0;
-@safe string table(O,M)(
+string table(O,M)(
   const        O  obj,
   const        M  doc_matters,
 ) {
@@ -901,7 +902,7 @@ int _table_number = 0;
 
 #+NAME: output_odt_0
 #+BEGIN_SRC d
-void writeOutputODT(W,I)(
+@trusted void writeOutputODT(W,I)(
   const W    odt_content,
         I    doc_matters,
 ) {
@@ -960,7 +961,7 @@ void writeOutputODT(W,I)(
               auto zip_arc_member_file = new ArchiveMember();
               zip_arc_member_file.name = fn_out;
               auto zip_data = new OutBuffer();
-              zip_data.write(cast(char[]) ((fn_src).read));
+              zip_data.write(cast(char[]) ((fn_src).read)); // trusted?
               zip_arc_member_file.expandedData = zip_data.toBytes();
               zip.addMember(zip_arc_member_file);
               createZipFile!()(fn_odt, zip.build());
@@ -1096,7 +1097,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_fixed_mimetype
 #+BEGIN_SRC d
-@safe string mimetype() {
+string mimetype() {
   string mimetype_ = format(q"┃application/vnd.oasis.opendocument.text┃");
   return mimetype_;
 }
@@ -1106,7 +1107,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_fixed_manifest_rdf_0
 #+BEGIN_SRC d
-@safe string manifest_rdf() {
+string manifest_rdf() {
   string _manifest_rdf = format(q"┃<?xml version="1.0" encoding="utf-8"?>
 #+END_SRC
 
@@ -1142,7 +1143,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_fixed_settings_xml_0
 #+BEGIN_SRC d
-@safe string settings_xml() {
+string settings_xml() {
   string _settings_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
 #+END_SRC
 
@@ -1256,7 +1257,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_fixed_styles_xml_0
 #+BEGIN_SRC d
-@safe string styles_xml() {
+string styles_xml() {
   string _styles_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
 #+END_SRC
 
@@ -2169,7 +2170,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_variable_content_xml_0
 #+BEGIN_SRC d
-@safe string odt_head(I)(I doc_matters) {
+string odt_head(I)(I doc_matters) {
   string _has_tables = format(q"┃
 #+END_SRC
 
@@ -2308,7 +2309,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_variable_content_xml_5
 #+BEGIN_SRC d
-@safe string odt_body(D,I)(
+string odt_body(D,I)(
   const D    doc_abstraction,
         I    doc_matters,
 ) {
@@ -2475,7 +2476,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_variable_content_xml_12
 #+BEGIN_SRC d
-@safe string odt_tail() {
+string odt_tail() {
   string _odt_tail = format(q"┃<text:p text:style-name="P_normal">spine: &lt;<text:a xl:type="simple" xl:href="https://www.doc_reform.org">www.doc_reform.org</text:a>&gt; and &lt;<text:a xl:type="simple" xl:href="https://www.sisudoc.org">www.sisudoc.org</text:a>&gt;</text:p>
 </office:text></office:body></office:document-content>┃",);
   return _odt_tail;
@@ -2486,7 +2487,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_variable_content_xml_13
 #+BEGIN_SRC d
-@safe string content_xml(D,I)(
+string content_xml(D,I)(
   const D    doc_abstraction,
         I    doc_matters,
 ) {
@@ -2507,7 +2508,7 @@ void dirtree(I)(
 
 #+NAME: output_odt_variable_manifest_xml_0
 #+BEGIN_SRC d
-@safe string manifest_xml(M)(
+string manifest_xml(M)(
   auto ref              M    doc_matters,
 ) {
   string _bullet = format(q"┃<manifest:file-entry manifest:media-type="" manifest:full-path="Pictures/bullet_09.png"/>┃");
@@ -2545,7 +2546,7 @@ _images.join("\n"),
 
 #+NAME: output_odt_variable_meta_xml_0
 #+BEGIN_SRC d
-@safe string meta_xml(M)(
+string meta_xml(M)(
   auto ref              M    doc_matters,
 ) {
   /+ (meta_xml includes output time-stamp) +/
@@ -2579,7 +2580,7 @@ doc_matters.generated_time,
 
 #+NAME: output_odt_variable_copy_odt_images
 #+BEGIN_SRC d
-@safe void images_cp(M)(
+void images_cp(M)(
   auto ref              M    doc_matters,
 ) {
   { /+ (copy odt images) +/
diff --git a/org/out_src_pod.org b/org/out_src_pod.org
index bf504c2..883572f 100644
--- a/org/out_src_pod.org
+++ b/org/out_src_pod.org
@@ -26,6 +26,7 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.source_pod;
+@system: // is not @safe: use: @system: or @trusted:
 template spinePod() {
   <<output_imports>>
   void spinePod(T)(T doc_matters) {
diff --git a/org/out_xmls.org b/org/out_xmls.org
index 75289a3..e9f8d79 100644
--- a/org/out_xmls.org
+++ b/org/out_xmls.org
@@ -23,7 +23,6 @@
 2024
 #+END_SRC
 
-
 * xml offspring (xhtml html epub)
 ** format xhtml objects :format:
 *** _module template_ :module:
@@ -33,6 +32,7 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.xmls;
+@safe:
 template outputXHTMLs() {
   <<output_imports_xml>>
   mixin spineRgxOut;
@@ -130,7 +130,7 @@ import
 
 #+NAME: xhtml_format_objects_div_delimit
 #+BEGIN_SRC d
-@safe string div_delimit(
+string div_delimit(
              string  section,
   return ref string  previous_section
 ) {
@@ -166,7 +166,7 @@ import
 
 #+NAME: xhtml_format_objects_special_characters_text
 #+BEGIN_SRC d
-@safe string special_characters_text(string _txt) {
+string special_characters_text(string _txt) {
   _txt = _txt
     .replaceAll(rgx_xhtml.ampersand,    "&amp;")  // "&#38;"
     .replaceAll(rgx_xhtml.quotation,    "&quot;") // "&#34;"
@@ -184,7 +184,7 @@ import
 
 #+NAME: xhtml_format_objects_special_characters_date
 #+BEGIN_SRC d
-@safe string special_characters_date(string _txt) {
+string special_characters_date(string _txt) {
   _txt = _txt
     .replaceAll(regex(r"(?:-00)+"),     "")
     .replaceAll(rgx.br_line,            "<br />")
@@ -199,7 +199,7 @@ import
 
 #+NAME: xhtml_format_objects_breaks_indents_bullets
 #+BEGIN_SRC d
-@safe string special_characters_breaks_indents_bullets(O)(
+string special_characters_breaks_indents_bullets(O)(
   const  O         obj,
 ) {
   string _txt = special_characters_text(obj.text);
@@ -256,7 +256,7 @@ import
 
 #+NAME: xhtml_format_objects_font_face
 #+BEGIN_SRC d
-@safe string font_face(string _txt) {
+string font_face(string _txt) {
   _txt = _txt
     .replaceAll(rgx.inline_emphasis,    ("<em>$1</em>"))
     .replaceAll(rgx.inline_bold,        ("<b>$1</b>"))
@@ -276,7 +276,7 @@ import
 
 #+NAME: xhtml_format_objects_xml_anchor_tags
 #+BEGIN_SRC d
-@safe string _xhtml_anchor_tags(O)(O obj) {
+string _xhtml_anchor_tags(O)(O obj) {
   string tags="";
   if (obj.tags.anchor_tags.length > 0) {
     foreach (tag; obj.tags.anchor_tags) {
@@ -294,7 +294,7 @@ import
 
 #+NAME: xhtml_format_objects_header_metadata
 #+BEGIN_SRC d
-@safe string header_metadata(M)(
+string header_metadata(M)(
   M  doc_matters,
 ) {
   string _publisher="Publisher"; // TODO
@@ -337,7 +337,7 @@ import
 
 #+NAME: xhtml_format_objects_site_info_button
 #+BEGIN_SRC d
-@safe string site_info_button(M)(
+string site_info_button(M)(
   M  doc_matters,
 ) {
   string _locations;
@@ -367,7 +367,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_search_form
 #+BEGIN_SRC d
-@safe string inline_search_form(M)(
+string inline_search_form(M)(
   M  doc_matters,
 ) {
   string o;
@@ -434,7 +434,7 @@ import
 
 #+NAME: xhtml_format_objects_html_head
 #+BEGIN_SRC d
-@safe string html_head(M)(
+string html_head(M)(
   M  doc_matters,
   string type,
 ) {
@@ -522,7 +522,7 @@ import
 
 #+NAME: xhtml_format_objects_epub3_seg_head
 #+BEGIN_SRC d
-@safe string epub3_seg_head(M)(
+string epub3_seg_head(M)(
   M  doc_matters,
 ) {
   string html_base = format(q"┃<!DOCTYPE html>
@@ -596,7 +596,7 @@ import
 
 #+NAME: xhtml_format_objects_dom_close
 #+BEGIN_SRC d
-@safe string dom_close() {
+string dom_close() {
   string o;
   o = format(q"┃</div>┃");
   return o;
@@ -608,7 +608,7 @@ import
 #+NAME: xhtml_format_objects_tail
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
-@safe string tail(M)(M doc_matters) {
+string tail(M)(M doc_matters) {
   string o;
   o = format(q"┃<hr />
   <div class="rights">
@@ -650,7 +650,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_images
 #+BEGIN_SRC d
-@safe string inline_images(O,M)(
+string inline_images(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -683,7 +683,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_links
 #+BEGIN_SRC d
-@safe string inline_links(O,M)(
+string inline_links(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -781,7 +781,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_notes_scroll
 #+BEGIN_SRC d
-@safe string inline_notes_scroll(O,M)(
+string inline_notes_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -818,7 +818,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_notes_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) inline_notes_seg(O,M)(
+Tuple!(string, string[]) inline_notes_seg(O,M)(
             string  _txt,
   const     O       obj,
             M       doc_matters,
@@ -889,7 +889,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_markup_scroll
 #+BEGIN_SRC d
-@safe string inline_markup_scroll(O,M)(
+string inline_markup_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -911,7 +911,7 @@ import
 
 #+NAME: xhtml_format_objects_inline_markup_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) inline_markup_seg(O,M)(
+Tuple!(string, string[]) inline_markup_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -938,7 +938,7 @@ import
 
 #+NAME: xhtml_format_objects_lev4_heading_subtoc
 #+BEGIN_SRC d
-@safe string lev4_heading_subtoc(O,M)(
+string lev4_heading_subtoc(O,M)(
   const        O  obj,
                M  doc_matters,
 ) {
@@ -971,7 +971,7 @@ import
 
 #+NAME: xhtml_format_objects_nav_pre_next_svg
 #+BEGIN_SRC d
-@safe auto nav_pre_next_svg(O,M)(
+auto nav_pre_next_svg(O,M)(
   const        O  obj,
                M  doc_matters,
 ) {
@@ -1048,7 +1048,7 @@ import
 
 #+NAME: xhtml_format_objects_heading
 #+BEGIN_SRC d
-@safe string heading(O,M)(
+string heading(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1142,7 +1142,7 @@ import
 
 #+NAME: xhtml_format_objects_heading_scroll
 #+BEGIN_SRC d
-@safe string heading_scroll(O,M)(
+string heading_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1158,7 +1158,7 @@ import
 
 #+NAME: xhtml_format_objects_heading_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) heading_seg(O,M)(
+Tuple!(string, string[]) heading_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1182,7 +1182,7 @@ import
 
 #+NAME: xhtml_format_objects_para
 #+BEGIN_SRC d
-@safe string para(O,M)(
+string para(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1238,7 +1238,7 @@ import
 
 #+NAME: xhtml_format_objects_para_scroll
 #+BEGIN_SRC d
-@safe string para_scroll(O,M)(
+string para_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1257,7 +1257,7 @@ import
 
 #+NAME: xhtml_format_objects_para_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) para_seg(O,M)(
+Tuple!(string, string[]) para_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1281,7 +1281,7 @@ import
 
 #+NAME: xhtml_format_objects_quote
 #+BEGIN_SRC d
-@safe string quote(O,M)(
+string quote(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1323,7 +1323,7 @@ import
 
 #+NAME: xhtml_format_objects_quote_scroll
 #+BEGIN_SRC d
-@safe string quote_scroll(O,M)(
+string quote_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1339,7 +1339,7 @@ import
 
 #+NAME: xhtml_format_objects_quote_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) quote_seg(O,M)(
+Tuple!(string, string[]) quote_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1363,7 +1363,7 @@ import
 
 #+NAME: xhtml_format_objects_group
 #+BEGIN_SRC d
-@safe string group(O,M)(
+string group(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1407,7 +1407,7 @@ import
 
 #+NAME: xhtml_format_objects_group_scroll
 #+BEGIN_SRC d
-@safe string group_scroll(O,M)(
+string group_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1424,7 +1424,7 @@ import
 
 #+NAME: xhtml_format_objects_group_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) group_seg(O,M)(
+Tuple!(string, string[]) group_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1448,7 +1448,7 @@ import
 
 #+NAME: xhtml_format_objects_block
 #+BEGIN_SRC d
-@safe string block(O,M)(
+string block(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1488,7 +1488,7 @@ import
 
 #+NAME: xhtml_format_objects_block_scroll
 #+BEGIN_SRC d
-@safe string block_scroll(O,M)(
+string block_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1505,7 +1505,7 @@ import
 
 #+NAME: xhtml_format_objects_block_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) block_seg(O,M)(
+Tuple!(string, string[]) block_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1529,7 +1529,7 @@ import
 
 #+NAME: xhtml_format_objects_verse
 #+BEGIN_SRC d
-@safe string verse(O,M)(
+string verse(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1567,7 +1567,7 @@ import
 
 #+NAME: xhtml_format_objects_verse_scroll
 #+BEGIN_SRC d
-@safe string verse_scroll(O,M)(
+string verse_scroll(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1584,7 +1584,7 @@ import
 
 #+NAME: xhtml_format_objects_verse_seg
 #+BEGIN_SRC d
-@safe Tuple!(string, string[]) verse_seg(O,M)(
+Tuple!(string, string[]) verse_seg(O,M)(
   string          _txt,
   const        O  obj,
                M  doc_matters,
@@ -1607,7 +1607,7 @@ import
 
 #+NAME: xhtml_format_objects_code
 #+BEGIN_SRC d
-@safe string code(O,M)(
+string code(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1679,7 +1679,7 @@ align="left|right|center"
 
 #+NAME: xhtml_format_objects_tablarize
 #+BEGIN_SRC d
-@safe Tuple!(string, string) tablarize(O)(
+Tuple!(string, string) tablarize(O)(
   string            _txt,
   const        O    obj,
 ) {
@@ -1718,7 +1718,7 @@ align="left|right|center"
 
 #+NAME: xhtml_format_objects_table
 #+BEGIN_SRC d
-@safe string table(O,M)(
+string table(O,M)(
         string _txt,
   const O      obj,
         M      doc_matters,
@@ -1762,10 +1762,11 @@ align="left|right|center"
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.html;
+@safe:
 template outputHTML() {
   <<output_imports_xml>>
   mixin outputXHTMLs;
-  @safe void scroll(D,M)(
+  void scroll(D,M)(
     const        D    doc_abstraction,
                  M    doc_matters,
   ) {
@@ -1777,7 +1778,7 @@ template outputHTML() {
     <<output_html_scroll_close_is_case>>
   }
   <<output_html_scroll_scroll_write_output>>
-  @safe void seg(D,M)(
+  void seg(D,M)(
     const D    doc_abstraction,
           M    doc_matters,
   ) {
@@ -2382,7 +2383,7 @@ seg_write_output(doc_html, doc_html_endnotes, doc_matters);
 
 #+NAME: output_html_css
 #+BEGIN_SRC d
-@safe void css(M)(M doc_matters) {
+void css(M)(M doc_matters) {
   auto css = spineCss(doc_matters);
   auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
   try {
@@ -2480,6 +2481,7 @@ seg_write_output(doc_html, doc_html_endnotes, doc_matters);
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.epub3;
+@safe:
 template outputEPub3() {
   <<output_imports_epub>>
   mixin InternalMarkup;
@@ -2514,7 +2516,7 @@ template outputEPub3() {
 
 #+NAME: output_epub3_fixed_mimetypes
 #+BEGIN_SRC d
-@safe string epub3_mimetypes() {
+string epub3_mimetypes() {
   string o;
   o = format(q"┃application/epub+zip┃") ~ "\n";
   return o;
@@ -2527,7 +2529,7 @@ template outputEPub3() {
 
 #+NAME: output_epub3_fixed_container_xml
 #+BEGIN_SRC d
-@safe string epub3_container_xml() {
+string epub3_container_xml() {
   string o;
   o = format(q"┃<?xml version="1.0" encoding="utf-8"?>┃") ~ "\n";
   o ~= format(q"┃<container version="1.0"
@@ -2560,7 +2562,7 @@ xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
 #+NAME: output_epub3_constructs_oebps_content
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
-@safe string epub3_oebps_content(D,M,P)(D doc_abstraction, M doc_matters, P parts) {
+string epub3_oebps_content(D,M,P)(D doc_abstraction, M doc_matters, P parts) {
   auto xhtml_format = outputXHTMLs();
   auto pth_epub3 = spinePathsEPUB!()(doc_matters.output_path, doc_matters.src.language);
   string _uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO sort uuid in doc_matters!
@@ -2656,7 +2658,7 @@ xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
 
 #+NAME: output_epub3_constructs_oebps_toc_nav_xhtml
 #+BEGIN_SRC d
-@safe string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
+string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
   enum DomTags { none, open, close, close_and_open, open_still, }
   auto markup = InlineMarkup();
   static auto rgx = RgxO();
diff --git a/org/out_xmls_css.org b/org/out_xmls_css.org
index 2cb6978..9e0d10a 100644
--- a/org/out_xmls_css.org
+++ b/org/out_xmls_css.org
@@ -29,9 +29,10 @@
   default css settings
 +/
 module doc_reform.io_out.xmls_css;
+@safe:
 template spineCss() {
   import std.format;
-  @safe auto spineCss(M)(M doc_matters) {
+  auto spineCss(M)(M doc_matters) {
 <<css_insert_shared_insert_variable_indent_values>>
 <<css_insert_shared_insert_variable_ocn_color_values>>
     string _css_light_html_seg = format(q"┃
@@ -148,7 +149,7 @@ template spineCss() {
     _css_indent,
     _color_ocn_dark,
 );
-    @safe auto css_() {
+    auto css_() {
       struct _CSS {
         string html_seg    = "/* spine css html seg stylesheet */\n";
         string html_scroll = "/* spine css html scroll stylesheet */\n";
diff --git a/org/out_zip.org b/org/out_zip.org
index 1435458..1302d18 100644
--- a/org/out_zip.org
+++ b/org/out_zip.org
@@ -26,13 +26,14 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.io_out.create_zip_file;
+@safe:
 template createZipFile() {
   import
     std.file,
     std.outbuffer,
     std.string,
     std.zip;
-  @safe void createZipFile(
+  void createZipFile(
     string zip_file_name,
     void[] compressed_zip_data,
   ) {
diff --git a/org/output_hub.org b/org/output_hub.org
index f2531c4..a6a2db1 100644
--- a/org/output_hub.org
+++ b/org/output_hub.org
@@ -29,6 +29,7 @@
   check & generate output types requested
 +/
 module doc_reform.io_out.hub;
+@safe:
 template outputHub() {
   <<output_imports>>
   @system void outputHub(D,I)(
diff --git a/org/output_show.org b/org/output_show.org
index 934d6e3..0247176 100644
--- a/org/output_show.org
+++ b/org/output_show.org
@@ -26,8 +26,9 @@
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_show_summary;
+@safe:
 template spineMetaDocSummary() {
-  @safe void spineMetaDocSummary(S,T)(
+  void spineMetaDocSummary(S,T)(
     const S  doc_abstraction,
           T  doc_matters,
   ) {
@@ -155,8 +156,9 @@ writefln(
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 module doc_reform.meta.metadoc_show_config;
+@safe:
 template spineShowSiteConfig() {
-  @safe void spineShowSiteConfig(O,T)(
+  void spineShowSiteConfig(O,T)(
     O opt_action,
     T config,
   ) {
@@ -246,7 +248,7 @@ writefln(
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 template spineShowConfig() {
-  @safe void spineShowConfig(T)(
+  void spineShowConfig(T)(
     T  doc_matters,
   ) {
     <<metadoc_show_summary_imports>>
@@ -340,8 +342,9 @@ writefln(
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_show_make;
+@safe:
 template spineShowMake() {
-  @safe void spineShowMake(T)(
+  void spineShowMake(T)(
     T  doc_matters,
   ) {
     <<metadoc_show_summary_imports>>
@@ -413,8 +416,9 @@ writefln(
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc_show_metadata;
+@safe:
 template spineShowMetaData() {
-  @safe void spineShowMetaData(T)(
+  void spineShowMetaData(T)(
     T  doc_matters,
   ) {
     <<metadoc_show_summary_imports>>
diff --git a/org/spine.org b/org/spine.org
index cd6960b..30585a6 100644
--- a/org/spine.org
+++ b/org/spine.org
@@ -47,6 +47,7 @@ name        "spine"
 description "A SiSU inspired document parser written in D."
 homepage    "https://sisudoc.org"
 +/
+@safe:
 <<imports_spine>>
 <<mixin_spine_version>>
 <<mixin_spine_configuration>>
@@ -965,20 +966,20 @@ OptActions _opt_action = OptActions();
 
 #+NAME: spine_args_program_info
 #+BEGIN_SRC d
-@safe auto program_info() {
+auto program_info() {
   struct ProgramInfo {
-    @safe string project() {
+    string project() {
       return project_name;
     }
-    @safe string name() {
+    string name() {
       return program_name;
     }
-    @safe string ver() {
+    string ver() {
       return format("%s.%s.%s",
         _ver.major, _ver.minor, _ver.patch,
       );
     }
-    @safe string compiler() {
+    string compiler() {
       return format ("%s D:%s, %s %s",
         __VENDOR__, __VERSION__,
         bits, os,
@@ -990,7 +991,7 @@ OptActions _opt_action = OptActions();
     @trusted string name_version_and_compiler() {
       return format("%s-%s (%s)", name, ver, compiler);
     }
-    @safe auto time_output_generated() {
+    auto time_output_generated() {
       auto _st = Clock.currTime(UTC());
       auto _t  = TimeOfDay(_st.hour, _st.minute, _st.second);
       auto _time = _st.year.to!string
@@ -1458,6 +1459,7 @@ break; // terminate, stop
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 module doc_reform.meta.metadoc;
+@safe:
 template spineAbstraction() {
   <<imports_spine_metadoc>>
   <<spine_metadoc_mixin>>
@@ -1643,15 +1645,15 @@ struct DocumentMatters {
 
 #+NAME: spine_each_file_do_document_matters_1_detail_program_time
 #+BEGIN_SRC d
-@safe auto generator_program() {
+auto generator_program() {
   struct Prog_ {
-    @safe string project_name() {
+    string project_name() {
       return "spine";
     }
-    @safe string name() {
+    string name() {
       return program_info.name;
     }
-    @safe string ver() {
+    string ver() {
       return program_info.ver;
     }
     @trusted string name_and_version() {
@@ -1660,22 +1662,22 @@ struct DocumentMatters {
     @trusted string name_version_and_compiler() {
       return program_info.name_version_and_compiler;
     }
-    @safe string url_home() {
+    string url_home() {
       return "https://sisudoc.org";
     }
-    @safe string url_git() {
+    string url_git() {
       return "https://git.sisudoc.org/projects/";
     }
-    @safe auto compiler() {
+    auto compiler() {
       return program_info.compiler;
     }
-    @safe auto time_output_generated() {
+    auto time_output_generated() {
       return program_info.time_output_generated;
     }
   }
   return Prog_();
 }
-@safe auto generated_time() {
+auto generated_time() {
   auto _st = Clock.currTime(UTC());
   auto _time = _st.year.to!string
     ~ "-" ~ _st.month.to!int.to!string // prefer as month number
@@ -1692,10 +1694,10 @@ struct DocumentMatters {
 
 #+NAME: spine_each_file_do_document_matters_2_meta
 #+BEGIN_SRC d
-@safe auto conf_make_meta() {
+auto conf_make_meta() {
   return _make_and_meta_struct;
 }
-@safe auto has() {
+auto has() {
   return _doc_has_struct;
 }
 #+END_SRC
@@ -1704,12 +1706,12 @@ struct DocumentMatters {
 
 #+NAME: spine_each_file_do_document_matters_3_env
 #+BEGIN_SRC d
-@safe auto env() {
+auto env() {
   struct Env_ {
-    @safe auto pwd() {
+    auto pwd() {
       return _manifest.env.pwd;
     }
-    @safe auto home() {
+    auto home() {
       return _manifest.env.home;
     }
   }
@@ -1721,9 +1723,9 @@ struct DocumentMatters {
 
 #+NAME: spine_each_file_do_document_matters_4_opt
 #+BEGIN_SRC d
-@safe auto opt() {
+auto opt() {
   struct Opt_ {
-    @safe auto action() {
+    auto action() {
       /+ getopt options, commandline instructions, raw
        - processing instructions --epub --html etc.
        - command line config instructions --output
@@ -1739,18 +1741,18 @@ struct DocumentMatters {
 
 #+NAME: spine_each_file_do_document_matters_5_doc
 #+BEGIN_SRC d
-@safe auto src() {
+auto src() {
   return _manifest.src;
 }
-@safe auto src_path_info() {
+auto src_path_info() {
   return spinePathsSRC!()(_manifest.env.pwd, _manifest.src.file_with_absolute_path); // would like (to have and use) relative path
 }
-@safe auto pod() {
+auto pod() {
   return _manifest.pod;
 }
-@safe auto sqlite() {
+auto sqlite() {
   struct SQLite_ {
-    @safe string filename() {
+    string filename() {
       string _fn = "";
       string _pth = "";
       if (_opt_action.sqliteDB_filename.length > 0) {
@@ -1760,7 +1762,7 @@ struct DocumentMatters {
       }
       return _fn;
     }
-    @safe string path() {
+    string path() {
       string _pth = "";
       if (_opt_action.sqliteDB_path.length > 0) {
         _pth = _opt_action.sqliteDB_path;
@@ -1769,7 +1771,7 @@ struct DocumentMatters {
       }
       return _pth;
     }
-    @safe string cgi_filename() {
+    string cgi_filename() {
       string _fn = "";
       if (_opt_action.cgi_sqlite_search_filename.length > 0) {
         _fn = _opt_action.cgi_sqlite_search_filename;
@@ -1778,7 +1780,7 @@ struct DocumentMatters {
       }
       return _fn;
     }
-    @safe string cgi_filename_d() {
+    string cgi_filename_d() {
       string _fn = "";
       if (_opt_action.cgi_sqlite_search_filename_d.length > 0) {
         _fn = _opt_action.cgi_sqlite_search_filename_d;
@@ -1790,10 +1792,10 @@ struct DocumentMatters {
   }
   return SQLite_();
 }
-@safe auto output_path() {
+auto output_path() {
   return _make_and_meta_struct.conf.output_path;
 }
-@safe auto srcs() {
+auto srcs() {
   struct SRC_ {
     auto file_insert_list() {
       return _header_body_insertfilelist_imagelist[headBody.insert_file_list];