refactor yaml extraction code fileHEADmain

2 files changed, 354 insertions, 671 deletions

diff --git a/src/sisudoc/meta/conf_make_meta_yaml.d b/src/sisudoc/meta/conf_make_meta_yaml.d
index 5712bcf..ee44200 100644
--- a/src/sisudoc/meta/conf_make_meta_yaml.d
+++ b/src/sisudoc/meta/conf_make_meta_yaml.d
@@ -71,7 +71,7 @@ template contentYAMLtoSpineStruct() {
     sisudoc.meta.rgx_yaml,
     sisudoc.meta.rgx;
   ConfComposite _struct_composite;
-  @system auto contentYAMLtoSpineStruct(C,Y,M,O,Cfg)(
+  @system ConfComposite contentYAMLtoSpineStruct(C,Y,M,O,Cfg)(
     C      _struct_composite,
     Y      _yaml,
     M      _manifested,
@@ -91,8 +91,55 @@ template contentYAMLtoSpineStruct() {
        .strip;
       return _txt;
     }
+    @system string _get_yaml_node_string(Y)(
+      Y      _yaml,
+      string _return,
+      string _title,
+      string _subtitle,
+      bool   _munge=false
+    ) {
+      if ((_title in _yaml && _yaml[_title].type.sequence)
+        && (_yaml[_title].type.mapping
+          && _yaml[_title].tag.match(rgx_y.yaml_tag_is_map))
+      ) {
+        if (_subtitle in _yaml[_title]
+          && _yaml[_title][_subtitle].type.string
+          && _yaml[_title][_subtitle].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _return = (!(_munge))
+          ? _yaml[_title][_subtitle].get!string
+          : check_input_markup(_yaml[_title][_subtitle].get!string);
+        }
+      }
+      return _return;
+    }
+    @system int _get_yaml_node_int(Y)(
+      Y      _yaml,
+      int    _return,
+      string _title,
+      string _subtitle
+    ) {
+      if ((_title in _yaml && _yaml[_title].type.sequence)
+        && (_yaml[_title].type.mapping
+          && _yaml[_title].tag.match(rgx_y.yaml_tag_is_map))
+      ) {
+        if (_subtitle in _yaml[_title]
+          && _yaml[_title][_subtitle].type.string
+          && _yaml[_title][_subtitle].tag.match(rgx_y.yaml_tag_is_int)
+        ) {
+          _return = _yaml[_title][_subtitle].get!int;
+        } else if (_subtitle in _yaml[_title]
+          && _yaml[_title][_subtitle].type.string
+          && _yaml[_title][_subtitle].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _return = _yaml[_title][_subtitle].get!int;
+        }
+      }
+      return _return;
+    }
     confCompositeMakeBuild _mk;
     if (_identifier != "header") { // called only once per run anyway
+      string _init_string;
       /+ conf ------------------------------------------------------------------- +/
       /+
        _cfg. build defaults (else program runtime defaults)
@@ -101,145 +148,52 @@ template contentYAMLtoSpineStruct() {
       +/
       {
         if (_opt_action.webserver_http.length > 0) {
-          _struct_composite.conf.w_srv_http
-            = _opt_action.webserver_http;
+          _struct_composite.conf.w_srv_http = _opt_action.webserver_http;
         } else {
-          _struct_composite.conf.w_srv_http
-            = (_cfg.http_request_type.empty)
-              ? "http"
-              : _cfg.http_request_type;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("http" in _yaml["webserv"]
-              && _yaml["webserv"]["http"].type.string
-              && _yaml["webserv"]["http"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_http
-                = _yaml["webserv"]["http"].get!string;
-            }
-          }
+          _init_string = (_cfg.http_request_type.empty) ? "http" : _cfg.http_request_type;
+          _struct_composite.conf.w_srv_http = _get_yaml_node_string(_yaml, _init_string, "webserv", "http");
         }
         if (_opt_action.cgi_search_title.length > 0) {
-          _struct_composite.conf.w_srv_cgi_search_form_title
-            = _opt_action.cgi_search_title;
+          _struct_composite.conf.w_srv_cgi_search_form_title = _opt_action.cgi_search_title;
         } else {
-          _struct_composite.conf.w_srv_cgi_search_form_title
-            = (_cfg.cgi_search_form_title.empty)
-              ? "≅ SiSU spine search form"
-              : _cfg.cgi_search_form_title;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("cgi_search_form_title" in _yaml["webserv"]
-              && _yaml["webserv"]["cgi_search_form_title"].type.string
-              && _yaml["webserv"]["cgi_search_form_title"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_cgi_search_form_title
-                = _yaml["webserv"]["cgi_search_form_title"].get!string;
-            }
-          }
+          _init_string = (_cfg.cgi_search_form_title.empty) ? "≅ SiSU spine search form" : _cfg.cgi_search_form_title;
+          _struct_composite.conf.w_srv_cgi_search_form_title = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_search_form_title");
         }
         if (_opt_action.cgi_sqlite_search_filename.length > 0) {
-          _struct_composite.conf.w_srv_cgi_search_script
-            = _opt_action.cgi_sqlite_search_filename;
+          _struct_composite.conf.w_srv_cgi_search_script = _opt_action.cgi_sqlite_search_filename;
         } else {
-          _struct_composite.conf.w_srv_cgi_search_script
-            = (_cfg.cgi_filename.empty)
-              ? "spine_search"
-              : _cfg.cgi_filename;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("cgi_search_script" in _yaml["webserv"]
-              && _yaml["webserv"]["cgi_search_script"].type.string
-              && _yaml["webserv"]["cgi_search_script"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_cgi_search_script
-                = _yaml["webserv"]["cgi_search_script"].get!string;
-            }
-          }
+          _init_string = (_cfg.cgi_filename.empty) ? "spine_search" : _cfg.cgi_filename;
+          _struct_composite.conf.w_srv_cgi_search_script = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_search_script");
         }
         if (_opt_action.sqliteDB_filename.length > 0) {
-          _struct_composite.conf.w_srv_db_sqlite_filename
-            = _opt_action.sqliteDB_filename;
+          _struct_composite.conf.w_srv_db_sqlite_filename = _opt_action.sqliteDB_filename;
         } else {
-          _struct_composite.conf.w_srv_db_sqlite_filename
-            = (_cfg.db_sqlite_filename.empty)
-              ?  "spine.search.db"
-              : _cfg.db_sqlite_filename;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("db_sqlite_filename" in _yaml["webserv"]
-              && _yaml["webserv"]["db_sqlite_filename"].type.string
-              && _yaml["webserv"]["db_sqlite_filename"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_db_sqlite_filename
-                = _yaml["webserv"]["db_sqlite_filename"].get!string;
-            }
-          }
+          _init_string = (_cfg.db_sqlite_filename.empty) ? "spine.search.db" : _cfg.db_sqlite_filename;
+          _struct_composite.conf.w_srv_db_sqlite_filename = _get_yaml_node_string(_yaml, _init_string, "webserv", "db_sqlite_filename");
         }
         if (_opt_action.sqliteDB_path.length > 0) {
-          _struct_composite.conf.w_srv_db_sqlite_path
-            = _opt_action.sqliteDB_path;
+          _struct_composite.conf.w_srv_db_sqlite_path = _opt_action.sqliteDB_path;
         } else {
-          _struct_composite.conf.w_srv_db_sqlite_path
-            = (_cfg.db_sqlite_path.empty)
-              ?  "/var/www/sqlite"
-              : _cfg.db_sqlite_path;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("db_sqlite_path" in _yaml["webserv"]
-              && _yaml["webserv"]["db_sqlite_path"].type.string
-              && _yaml["webserv"]["db_sqlite_path"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_db_sqlite_path
-                = _yaml["webserv"]["db_sqlite_path"].get!string;
-            }
-          }
+          _init_string = (_cfg.db_sqlite_path.empty) ? "/var/www/sqlite" : _cfg.db_sqlite_path;
+          _struct_composite.conf.w_srv_db_sqlite_path = _get_yaml_node_string(_yaml, _init_string, "webserv", "db_sqlite_path");
         }
         if (_opt_action.cgi_url_action.length > 0) {
           _struct_composite.conf.w_srv_cgi_action
             = _opt_action.cgi_url_action;
         } else {
-          _struct_composite.conf.w_srv_cgi_action
-            = (_cfg.www_url_doc_root.empty)
-              ?  "http://locahost" // "https://sisudoc.org"
-              : _cfg.www_url_doc_root;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("cgi_action" in _yaml["webserv"]
-              && _yaml["webserv"]["cgi_action"].type.string
-              && _yaml["webserv"]["cgi_action"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_cgi_action
-                = _yaml["webserv"]["cgi_action"].get!string;
-            } else if (_opt_action.cgi_sqlite_search_filename.length > 0) {
-              _struct_composite.conf.w_srv_cgi_action
-                = _struct_composite.conf.w_srv_cgi_bin_url ~ "/" ~ _opt_action.cgi_sqlite_search_filename;
-            }
+          _init_string = (_cfg.www_url_doc_root.empty) ? "http://locahost" : _cfg.www_url_doc_root; // "https://sisudoc.org"
+          _struct_composite.conf.w_srv_cgi_action = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_action");
+          if (_opt_action.cgi_sqlite_search_filename.length > 0) {
+            _struct_composite.conf.w_srv_cgi_action = _struct_composite.conf.w_srv_cgi_bin_url ~ "/" ~ _opt_action.cgi_sqlite_search_filename; // not yet right
           }
         }
         if (!(_struct_composite.conf.output_path)) {
           _struct_composite.conf.output_path = ((_manifested.output.path).asNormalizedPath).array;
         } {
           if (_opt_action.output_dir_set.length > 0) {
-            _struct_composite.conf.output_path
-              = (_opt_action.output_dir_set.asNormalizedPath).array;
+            _struct_composite.conf.output_path = (_opt_action.output_dir_set.asNormalizedPath).array;
           } else {
-            _struct_composite.conf.output_path
-              = (_cfg.processing_path_doc_root.empty)
-                ?  "/srv/www/spine"
-                : _cfg.processing_path_doc_root;
+            _struct_composite.conf.output_path = (_cfg.processing_path_doc_root.empty) ?  "/srv/www/spine" : _cfg.processing_path_doc_root;
             if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
               && (_yaml["webserv"].type.mapping
                 && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
@@ -261,75 +215,23 @@ template contentYAMLtoSpineStruct() {
             }
           }
           if (_opt_action.webserver_host_doc_root.length > 0) { // same as output_path immediately above, resolve FIX REMOVE
-            _struct_composite.conf.w_srv_data_root_path
-              = _opt_action.webserver_host_doc_root;
+            _struct_composite.conf.w_srv_data_root_path = _opt_action.webserver_host_doc_root;
           } else {
-            _struct_composite.conf.w_srv_data_root_path
-              = (_cfg.processing_path_doc_root.empty)
-                ? "/var/www/spine"
-                : _cfg.processing_path_doc_root;
-            if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-              && (_yaml["webserv"].type.mapping
-                && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-            ) {
-              if ("data_root_path" in _yaml["webserv"]
-                && _yaml["webserv"]["data_root_path"].type.string
-                && _yaml["webserv"]["data_root_path"].tag.match(rgx_y.yaml_tag_is_str)
-              ) {
-                _struct_composite.conf.w_srv_data_root_path
-                  = _yaml["webserv"]["data_root_path"].get!string;
-              }
-            }
+            _init_string = (_cfg.processing_path_doc_root.empty) ? "/var/www/spine" : _cfg.processing_path_doc_root;
+            _struct_composite.conf.w_srv_data_root_path = _get_yaml_node_string(_yaml, _init_string, "webserv", "data_root_path");
           }
         }
         if (_opt_action.cgi_bin_root.length > 0) {
-          _struct_composite.conf.w_srv_cgi_bin_path
-            = _opt_action.cgi_bin_root;
+          _struct_composite.conf.w_srv_cgi_bin_path = _opt_action.cgi_bin_root;
         } else {
-          _struct_composite.conf.w_srv_cgi_bin_path
-            = (_cfg.cgi_bin_root.empty)
-              ? "/var/www/cgi/cgi-bin"
-              : _cfg.cgi_bin_root;
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("cgi_bin_path" in _yaml["webserv"]
-              && _yaml["webserv"]["cgi_bin_path"].type.string
-              && _yaml["webserv"]["cgi_bin_path"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_cgi_bin_path
-                = _yaml["webserv"]["cgi_bin_path"].get!string;
-            }
-          }
-        }
-        { _struct_composite.conf.w_srv_data_root_part
-            = "";
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("data_root_part" in _yaml["webserv"]
-              && _yaml["webserv"]["data_root_part"].type.string
-              && _yaml["webserv"]["data_root_part"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_data_root_part = _yaml["webserv"]["data_root_part"].get!string;
-            }
-          }
-        }
-        { _struct_composite.conf.w_srv_images_root_part
-            = "image";
-          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
-            && (_yaml["webserv"].type.mapping
-              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
-          ) {
-            if ("images_root_part" in _yaml["webserv"]
-              && _yaml["webserv"]["images_root_part"].type.string
-              && _yaml["webserv"]["images_root_part"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.conf.w_srv_images_root_part = _yaml["webserv"]["images_root_part"].get!string;
-            }
-          }
+          _init_string = (_cfg.cgi_bin_root.empty) ? "/var/www/cgi/cgi-bin" : _cfg.cgi_bin_root;
+          _struct_composite.conf.w_srv_cgi_bin_path = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_bin_path");
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "data_root_part");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_data_root_part = _init_string; }
+        } {
+          _init_string = "image"; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "images_root_part");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_images_root_part = _init_string; }
         }
       }
       if (("webserv" in _yaml
@@ -337,106 +239,68 @@ template contentYAMLtoSpineStruct() {
         && (_yaml["webserv"].type.mapping
           && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
       ) { // cannot be used as is with opt_action FIX look at remaining, decide what to do later
-          if ("data_http" in _yaml["webserv"]
-            && _yaml["webserv"]["data_http"].type.string
-            && _yaml["webserv"]["data_http"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_data_http = _yaml["webserv"]["data_http"].get!string;
-          }
-          // if (_opt_action.*.length > 0) {
-          if ("cgi_http" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_http"].type.string
-            && _yaml["webserv"]["cgi_http"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_http = _yaml["webserv"]["cgi_http"].get!string;
-          }
-          // if (_opt_action.*.length > 0) {
-          if ("host" in _yaml["webserv"]
-            && _yaml["webserv"]["host"].type.string
-            && _yaml["webserv"]["host"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_host = _yaml["webserv"]["host"].get!string;
-          }
-          if ("data_root_url" in _yaml["webserv"]
-            && _yaml["webserv"]["data_root_url"].type.string
-            && _yaml["webserv"]["data_root_url"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_data_root_url      = _yaml["webserv"]["data_root_url"].get!string;
-            _struct_composite.conf.w_srv_data_root_url_html =
-              _yaml["webserv"]["data_root_url"].get!string
-              ~ _struct_composite.conf.w_srv_data_root_part ~ "/"
-              ~ _manifested.src.language ~ "/"
-              ~ "html";
-          } else {
-            _struct_composite.conf.w_srv_data_root_url =  _struct_composite.conf.w_srv_data_root_part;
-            _struct_composite.conf.w_srv_data_root_url_html =
-              _struct_composite.conf.w_srv_data_root_part ~ "/"
-              ~ _manifested.src.language ~ "/"
-              ~ "html";
-          }
-          if ("cgi_host" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_host"].type.string
-            && _yaml["webserv"]["cgi_host"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_host = _yaml["webserv"]["cgi_host"].get!string;
-          } else { // composite construct
-            _struct_composite.conf.w_srv_cgi_host = _struct_composite.conf.w_srv_host;
-          }
-          if ("cgi_bin_subpath" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_bin_subpath"].type.string
-            && _yaml["webserv"]["cgi_bin_subpath"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_bin_subpath = _yaml["webserv"]["cgi_bin_subpath"].get!string;
-          }
-          if ("cgi_port" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_port"].type.string
-            && _yaml["webserv"]["cgi_port"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_port = _yaml["webserv"]["cgi_port"].get!string;
-          }
-          if ("cgi_user" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_user"].type.string
-            && _yaml["webserv"]["cgi_user"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_user = _yaml["webserv"]["cgi_user"].get!string;
-          }
-          if ("cgi_bin_url" in _yaml["webserv"]
-            && _yaml["webserv"]["cgi_bin_url"].type.string
-            && _yaml["webserv"]["cgi_bin_url"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.w_srv_cgi_bin_url = _yaml["webserv"]["cgi_bin_url"].get!string;
-          } else {
-            _struct_composite.conf.w_srv_cgi_bin_url =
-              (_struct_composite.conf.w_srv_cgi_http.empty)
-                ? _struct_composite.conf.w_srv_http
-                :_struct_composite.conf.w_srv_cgi_http
-              ~ "://"
-              ~ (_struct_composite.conf.w_srv_cgi_host.empty)
-                ? _struct_composite.conf.w_srv_cgi_host
-                : _struct_composite.conf.w_srv_host
-              ~ _struct_composite.conf.w_srv_cgi_bin_subpath;
-          }
-          // if ("cgi_file_links" in _yaml["webserv"]
-          //   && _yaml["webserv"]["cgi_file_links"].type.string
-          //   && _yaml["webserv"]["cgi_file_links"].tag.match(rgx_y.yaml_tag_is_str)
-          // ) {
-          //   _struct_composite.conf.w_srv_cgi_file_links = _yaml["webserv"]["cgi_file_links"].get!string;
-          // }
-      }
-      // make (in: conf, make, meta)?
-      if ("processing" in _yaml
-        && _yaml["processing"].type.sequence
-      ) {
-        if (_yaml["processing"].type.mapping
-          && _yaml["processing"].tag.match(rgx_y.yaml_tag_is_map)
+        {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "data_http");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_data_http = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_http");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_cgi_http = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "host");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_host = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_bin_subpath");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_cgi_bin_subpath = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_port");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_cgi_port = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_user");
+          if (!(_init_string.empty)) { _struct_composite.conf.w_srv_cgi_user = _init_string; }
+        }
+        if ("data_root_url" in _yaml["webserv"]
+          && _yaml["webserv"]["data_root_url"].type.string
+          && _yaml["webserv"]["data_root_url"].tag.match(rgx_y.yaml_tag_is_str)
         ) {
-          if ("concord_max" in _yaml["processing"]
-            && _yaml["processing"]["concord_max"].type.string
-            && _yaml["processing"]["concord_max"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.processing_concord_max = _yaml["processing"]["concord_max"].get!string;
-          }
+          _struct_composite.conf.w_srv_data_root_url      = _yaml["webserv"]["data_root_url"].get!string;
+          _struct_composite.conf.w_srv_data_root_url_html =
+            _yaml["webserv"]["data_root_url"].get!string
+            ~ _struct_composite.conf.w_srv_data_root_part ~ "/"
+            ~ _manifested.src.language ~ "/"
+            ~ "html";
+        } else {
+          _struct_composite.conf.w_srv_data_root_url =  _struct_composite.conf.w_srv_data_root_part;
+          _struct_composite.conf.w_srv_data_root_url_html =
+            _struct_composite.conf.w_srv_data_root_part ~ "/"
+            ~ _manifested.src.language ~ "/"
+            ~ "html";
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "webserv", "cgi_host");
+          _struct_composite.conf.w_srv_cgi_host = (!(_init_string.empty)) ? _init_string : _struct_composite.conf.w_srv_host;
         }
+        if ("cgi_bin_url" in _yaml["webserv"]
+          && _yaml["webserv"]["cgi_bin_url"].type.string
+          && _yaml["webserv"]["cgi_bin_url"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _struct_composite.conf.w_srv_cgi_bin_url = _yaml["webserv"]["cgi_bin_url"].get!string;
+        } else {
+          _struct_composite.conf.w_srv_cgi_bin_url =
+            (_struct_composite.conf.w_srv_cgi_http.empty) ? _struct_composite.conf.w_srv_http :_struct_composite.conf.w_srv_cgi_http
+            ~ "://"
+            ~ (_struct_composite.conf.w_srv_cgi_host.empty) ? _struct_composite.conf.w_srv_cgi_host : _struct_composite.conf.w_srv_host
+            ~ _struct_composite.conf.w_srv_cgi_bin_subpath;
+        }
+        // if ("cgi_file_links" in _yaml["webserv"]
+        //   && _yaml["webserv"]["cgi_file_links"].type.string
+        //   && _yaml["webserv"]["cgi_file_links"].tag.match(rgx_y.yaml_tag_is_str)
+        // ) {
+        //   _struct_composite.conf.w_srv_cgi_file_links = _yaml["webserv"]["cgi_file_links"].get!string;
+        // }
+      }
+      // make (in: conf, make, meta)?
+      {
+        _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "processing", "concord_max");
+        if (!(_init_string.empty)) { _struct_composite.conf.processing_concord_max = _init_string; }
       }
       if ("flag" in _yaml
         && _yaml["flag"].type.sequence
@@ -444,65 +308,36 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["flag"].type.mapping
           && _yaml["flag"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("act0" in _yaml["flag"]
-            && _yaml["flag"]["act0"].type.string
-            && _yaml["flag"]["act0"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act0 = _yaml["flag"]["act0"].get!string;
-          }
-          if ("act1" in _yaml["flag"]
-            && _yaml["flag"]["act1"].type.string
-            && _yaml["flag"]["act1"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act1 = _yaml["flag"]["act1"].get!string;
-          }
-          if ("act2" in _yaml["flag"]
-            && _yaml["flag"]["act2"].type.string
-            && _yaml["flag"]["act2"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act2 = _yaml["flag"]["act2"].get!string;
-          }
-          if ("act3" in _yaml["flag"]
-            && _yaml["flag"]["act3"].type.string
-            && _yaml["flag"]["act3"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act3 = _yaml["flag"]["act3"].get!string;
-          }
-          if ("act4" in _yaml["flag"]
-            && _yaml["flag"]["act4"].type.string
-            && _yaml["flag"]["act4"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act4 = _yaml["flag"]["act4"].get!string;
-          }
-          if ("act5" in _yaml["flag"]
-            && _yaml["flag"]["act5"].type.string
-            && _yaml["flag"]["act5"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act5 = _yaml["flag"]["act5"].get!string;
-          }
-          if ("act6" in _yaml["flag"]
-            && _yaml["flag"]["act6"].type.string
-            && _yaml["flag"]["act6"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act6 = _yaml["flag"]["act6"].get!string;
-          }
-          if ("act7" in _yaml["flag"]
-            && _yaml["flag"]["act7"].type.string
-            && _yaml["flag"]["act7"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act7 = _yaml["flag"]["act7"].get!string;
-          }
-          if ("act8" in _yaml["flag"]
-            && _yaml["flag"]["act8"].type.string
-            && _yaml["flag"]["act8"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act8 = _yaml["flag"]["act8"].get!string;
-          }
-          if ("act9" in _yaml["flag"]
-            && _yaml["flag"]["act9"].type.string
-            && _yaml["flag"]["act9"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.flag_act9 = _yaml["flag"]["act9"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act0");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act0 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act1");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act1 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act2");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act2 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act3");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act3 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act4");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act4 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act5");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act5 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act6");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act6 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act7");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act7 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act8");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act8 = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "flag", "act9");
+            if (!(_init_string.empty)) { _struct_composite.conf.flag_act9 = _init_string; }
           }
         }
       }
@@ -568,20 +403,11 @@ template contentYAMLtoSpineStruct() {
       }
       string _set_papersize;
       if (_opt_action.latex_papersize.length > 0) {
-        _set_papersize
-          = _opt_action.latex_papersize;
+        _set_papersize = _opt_action.latex_papersize;
       } else {
-        _set_papersize
-          = (_cfg.default_papersize.empty)
-            ? "a4,letter.portrait"
-            : _cfg.default_papersize;
-        if ("papersize" in _yaml["default"]
-          && _yaml["default"]["papersize"].type.string
-          && _yaml["default"]["papersize"].tag.match(rgx_y.yaml_tag_is_str)
-        ) {
-          _set_papersize
-            = _yaml["default"]["papersize"].get!string;
-        }
+        _set_papersize = (_cfg.default_papersize.empty) ? "a4,letter.portrait" : _cfg.default_papersize;
+        _init_string = _set_papersize; _init_string = _get_yaml_node_string(_yaml, _init_string, "default", "papersize");
+        if (!(_init_string.empty)) { _set_papersize = _init_string; }
       }
       _struct_composite.conf.set_papersize = selected_papersize(_set_papersize);
       if (
@@ -590,29 +416,18 @@ template contentYAMLtoSpineStruct() {
         && _yaml["default"].type.mapping
         && _yaml["default"].tag.match(rgx_y.yaml_tag_is_map)
       ) {
-        if ("text_wrap" in _yaml["default"]
-          && _yaml["default"]["text_wrap"].type.string
-          && _yaml["default"]["text_wrap"].tag.match(rgx_y.yaml_tag_is_str)
-        ) {
-          _struct_composite.conf.set_text_wrap = _yaml["default"]["text_wrap"].get!string;
-        }
-        if ("emphasis" in _yaml["default"]
-          && _yaml["default"]["emphasis"].type.string
-          && _yaml["default"]["emphasis"].tag.match(rgx_y.yaml_tag_is_str)
-        ) {
-          _struct_composite.conf.set_emphasis = _yaml["default"]["emphasis"].get!string;
-        }
-        if ("language" in _yaml["default"]
-          && _yaml["default"]["language"].type.string
-          && _yaml["default"]["language"].tag.match(rgx_y.yaml_tag_is_str)
-        ) {
-          _struct_composite.conf.set_language = _yaml["default"]["language"].get!string;
-        }
-        if ("digest" in _yaml["default"]
-          && _yaml["default"]["digest"].type.string
-          && _yaml["default"]["digest"].tag.match(rgx_y.yaml_tag_is_str)
-        ) {
-          _struct_composite.conf.set_digest = _yaml["default"]["digest"].get!string;
+        {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "default", "text_wrap");
+          if (!(_init_string.empty)) { _struct_composite.conf.set_text_wrap = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "default", "emphasis");
+          if (!(_init_string.empty)) { _struct_composite.conf.set_emphasis = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "default", "language");
+          if (!(_init_string.empty)) { _struct_composite.conf.set_language = _init_string; }
+        } {
+          _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "default", "digest");
+          if (!(_init_string.empty)) { _struct_composite.conf.set_digest = _init_string; }
         }
       }
       if ("search" in _yaml
@@ -621,33 +436,24 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["search"].type.mapping
           && _yaml["search"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("flag" in _yaml["search"]
-            && _yaml["search"]["flag"].type.string
-            && _yaml["search"]["flag"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.search_flag = _yaml["search"]["flag"].get!string;
-          }
-          if ("action" in _yaml["search"]
-            && _yaml["search"]["action"].type.string
-            && _yaml["search"]["action"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.search_action = _yaml["search"]["action"].get!string;
-          }
-          if ("db" in _yaml["search"]
-            && _yaml["search"]["db"].type.string
-            && _yaml["search"]["db"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.search_db = _yaml["search"]["db"].get!string;
-          }
-          if ("title" in _yaml["search"]
-            && _yaml["search"]["title"].type.string
-            && _yaml["search"]["title"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.conf.search_title = _yaml["search"]["title"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "search", "flag");
+            if (!(_init_string.empty)) { _struct_composite.conf.search_flag = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "search", "action");
+            if (!(_init_string.empty)) { _struct_composite.conf.search_action = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "search", "db");
+            if (!(_init_string.empty)) { _struct_composite.conf.search_db = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "search", "title");
+            if (!(_init_string.empty)) { _struct_composite.conf.search_title = _init_string; }
           }
         }
       }
-    } else {
+    } else { // !(_identifier != "header")
+      string _init_string;
+      int    _init_int;
       /+ make ------------------------------------------------------------------- +/
       if ("make" in _yaml
         && _yaml["make"].type.sequence
@@ -655,41 +461,24 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["make"].type.mapping
           && _yaml["make"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("doc_type" in _yaml["make"]
-            && _yaml["make"]["doc_type"].type.string
-            && _yaml["make"]["doc_type"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.doc_type = _yaml["make"]["doc_type"].get!string;
-          }
-          if ("breaks" in _yaml["make"]
-            && _yaml["make"]["breaks"].type.string
-            && _yaml["make"]["breaks"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.breaks = _yaml["make"]["breaks"].get!string;
-          }
-          if ("bold" in _yaml["make"]
-            && _yaml["make"]["bold"].type.string
-            && _yaml["make"]["bold"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.bold = _yaml["make"]["bold"].get!string;
-          }
-          if ("cover_image" in _yaml["make"]
-            && _yaml["make"]["cover_image"].type.string
-            && _yaml["make"]["cover_image"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.cover_image = _yaml["make"]["cover_image"].get!string;
-          }
-          if ("css" in _yaml["make"]
-            && _yaml["make"]["css"].type.string
-            && _yaml["make"]["css"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.css = _yaml["make"]["css"].get!string;
-          }
-          if ("emphasis" in _yaml["make"]
-            && _yaml["make"]["emphasis"].type.string
-            && _yaml["make"]["emphasis"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.make_str.emphasis = _yaml["make"]["emphasis"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "doc_type");
+            if (!(_init_string.empty)) { _struct_composite.make_str.doc_type = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "breaks");
+            if (!(_init_string.empty)) { _struct_composite.make_str.breaks = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "bold");
+            if (!(_init_string.empty)) { _struct_composite.make_str.bold = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "cover_image");
+            if (!(_init_string.empty)) { _struct_composite.make_str.cover_image = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "css");
+            if (!(_init_string.empty)) { _struct_composite.make_str.css = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "make", "emphasis");
+            if (!(_init_string.empty)) { _struct_composite.make_str.emphasis = _init_string; }
           }
           if ("footer" in _yaml["make"]
             && _yaml["make"]["footer"].type.string
@@ -781,16 +570,9 @@ template contentYAMLtoSpineStruct() {
               break;
             }
           }
-          if ("auto_num_depth" in _yaml["make"]
-            && _yaml["make"]["auto_num_depth"].type.string
-            && _yaml["make"]["auto_num_depth"].tag.match(rgx_y.yaml_tag_is_int)
-          ) { // not sure implemented for documents
-            _struct_composite.make_str.auto_num_depth = _yaml["make"]["auto_num_depth"].get!int;
-          } else if ("auto_num_depth" in _yaml["make"]
-            && _yaml["make"]["auto_num_depth"].type.string
-            && _yaml["make"]["auto_num_depth"].tag.match(rgx_y.yaml_tag_is_str)
-          ) { // not sure implemented for documents
-            _struct_composite.make_str.auto_num_depth = _yaml["make"]["auto_num_depth"].get!int;
+          {
+            _init_int = _get_yaml_node_int(_yaml, 99, "make", "auto_num_depth");
+            if (!(_init_int == 99)) { _struct_composite.make_str.auto_num_depth = _init_int; }
           }
           if ("texpdf_font" in _yaml["make"]
             && _yaml["make"]["texpdf_font"].type.string
@@ -823,29 +605,18 @@ template contentYAMLtoSpineStruct() {
           if (_yaml["creator"].type.mapping
             && _yaml["creator"].tag.match(rgx_y.yaml_tag_is_map)
           ) {
-            if ("author" in _yaml["creator"]
-              && _yaml["creator"]["author"].type.string
-              && _yaml["creator"]["author"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.creator_author = _yaml["creator"]["author"].get!string;
-            }
-            if ("email" in _yaml["creator"]
-              && _yaml["creator"]["email"].type.string
-              && _yaml["creator"]["email"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.creator_author_email = _yaml["creator"]["email"].get!string;
-            }
-            if ("illustrator" in _yaml["creator"]
-              && _yaml["creator"]["illustrator"].type.string
-              && _yaml["creator"]["illustrator"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.creator_illustrator = _yaml["creator"]["illustrator"].get!string;
-            }
-            if ("translator" in _yaml["creator"]
-              && _yaml["creator"]["translator"].type.string
-              && _yaml["creator"]["translator"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.creator_translator = _yaml["creator"]["translator"].get!string;
+            {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "creator", "author");
+              if (!(_init_string.empty)) { _struct_composite.meta.creator_author = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "creator", "email");
+              if (!(_init_string.empty)) { _struct_composite.meta.creator_author_email = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "creator", "illustrator");
+              if (!(_init_string.empty)) { _struct_composite.meta.creator_illustrator = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "creator", "translator");
+              if (!(_init_string.empty)) { _struct_composite.meta.creator_translator = _init_string; }
             }
           } else if (_yaml["creator"].type.string
             && _yaml["creator"].tag.match(rgx_y.yaml_tag_is_str)
@@ -901,43 +672,27 @@ template contentYAMLtoSpineStruct() {
             ) {
               _struct_composite.meta.title_main = _yaml["title"]["title"].get!string;
             }
-            if ("edition" in _yaml["title"]
-              && _yaml["title"]["edition"].type.string
-              && _yaml["title"]["edition"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_edition = _yaml["title"]["edition"].get!string;
-            }
-            if ("full" in _yaml["title"]
-              && _yaml["title"]["full"].type.string
-              && _yaml["title"]["full"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_full = _yaml["title"]["full"].get!string;
-            }
-            if ("language" in _yaml["title"]
-              && _yaml["title"]["language"].type.string
-              && _yaml["title"]["language"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_language = _yaml["title"]["language"].get!string;
+            {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "edition");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_edition = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "full");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_full = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "language");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_language = _init_string; }
+            } {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "note");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_note = _init_string; }
             }
-            if ("note" in _yaml["title"]
-              && _yaml["title"]["note"].type.string
-              && _yaml["title"]["note"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_note = _yaml["title"]["note"].get!string;
+            if ("subtitle" in _yaml["title"]) {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "subtitle");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_subtitle = _init_string; }
+            } else if ("sub" in _yaml["title"]) {
+              _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "title", "sub");
+              if (!(_init_string.empty)) { _struct_composite.meta.title_subtitle = _init_string; }
             }
-            if ("subtitle" in _yaml["title"]
-              && _yaml["title"]["subtitle"].type.string
-              && _yaml["title"]["subtitle"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_subtitle = _yaml["title"]["subtitle"].get!string;
-            } else if ("sub" in _yaml["title"]
-              && _yaml["title"]["sub"].type.string
-              && _yaml["title"]["sub"].tag.match(rgx_y.yaml_tag_is_str)
-            ) {
-              _struct_composite.meta.title_subtitle = _yaml["title"]["sub"].get!string;
-            }
-          } else if (
-            _yaml["title"].type.string
+          } else if (_yaml["title"].type.string
             && _yaml["title"].tag.match(rgx_y.yaml_tag_is_str)
           ) {
             _struct_composite.meta.title_main = _yaml["title"].get!string;
@@ -962,23 +717,15 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["classify"].type.mapping
           && _yaml["classify"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("dewey" in _yaml["classify"]
-            && _yaml["classify"]["dewey"].type.string
-            && _yaml["classify"]["dewey"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.classify_dewey = _yaml["classify"]["dewey"].get!string;
-          }
-          if ("loc" in _yaml["classify"]
-            && _yaml["classify"]["loc"].type.string
-            && _yaml["classify"]["loc"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.classify_loc = _yaml["classify"]["loc"].get!string;
-          }
-          if ("keywords" in _yaml["classify"]
-            && _yaml["classify"]["keywords"].type.string
-            && _yaml["classify"]["keywords"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.classify_keywords = _yaml["classify"]["keywords"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "classify", "dewey");
+            if (!(_init_string.empty)) { _struct_composite.meta.classify_dewey = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "classify", "loc");
+            if (!(_init_string.empty)) { _struct_composite.meta.classify_loc = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "classify", "keywords");
+            if (!(_init_string.empty)) { _struct_composite.meta.classify_keywords = _init_string; }
           }
           if ("topic_register" in _yaml["classify"]
             && _yaml["classify"]["topic_register"].type.string
@@ -1032,47 +779,27 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["date"].type.mapping
           && _yaml["date"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("added_to_site" in _yaml["date"]
-            && _yaml["date"]["added_to_site"].type.string
-            && _yaml["date"]["added_to_site"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_added_to_site = _yaml["date"]["added_to_site"].get!string;
-          }
-          if ("available" in _yaml["date"]
-            && _yaml["date"]["available"].type.string
-            && _yaml["date"]["available"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_available = _yaml["date"]["available"].get!string;
-          }
-          if ("created" in _yaml["date"]
-            && _yaml["date"]["created"].type.string
-            && _yaml["date"]["created"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_created = _yaml["date"]["created"].get!string;
-          }
-          if ("issued" in _yaml["date"]
-            && _yaml["date"]["issued"].type.string
-            && _yaml["date"]["issued"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_issued = _yaml["date"]["issued"].get!string;
-          }
-          if ("modified" in _yaml["date"]
-            && _yaml["date"]["modified"].type.string
-            && _yaml["date"]["modified"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_modified = _yaml["date"]["modified"].get!string;
-          }
-          if ("published" in _yaml["date"]
-            && _yaml["date"]["published"].type.string
-            && _yaml["date"]["published"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_published = _yaml["date"]["published"].get!string;
-          }
-          if ("valid" in _yaml["date"]
-            && _yaml["date"]["valid"].type.string
-            && _yaml["date"]["valid"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.date_valid = _yaml["date"]["valid"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "added_to_site");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_added_to_site = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "available");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_available = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "created");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_created = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "issued");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_issued = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "modified");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_modified = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "published");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_published = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "date", "valid");
+            if (!(_init_string.empty)) { _struct_composite.meta.date_valid = _init_string; }
           }
         }
       }
@@ -1088,23 +815,15 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["notes"].type.mapping
           && _yaml["notes"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("abstract" in _yaml["notes"]
-            && _yaml["notes"]["abstract"].type.string
-            && _yaml["notes"]["abstract"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.notes_abstract = _yaml["notes"]["abstract"].get!string;
-          }
-          if ("description" in _yaml["notes"]
-            && _yaml["notes"]["description"].type.string
-            && _yaml["notes"]["description"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.notes_description = _yaml["notes"]["description"].get!string;
-          }
-          if ("summary" in _yaml["notes"]
-            && _yaml["notes"]["summary"].type.string
-            && _yaml["notes"]["summary"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.notes_summary = _yaml["notes"]["summary"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "notes", "abstract");
+            if (!(_init_string.empty)) { _struct_composite.meta.notes_abstract = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "notes", "description");
+            if (!(_init_string.empty)) { _struct_composite.meta.notes_description = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "notes", "summary");
+            if (!(_init_string.empty)) { _struct_composite.meta.notes_summary = _init_string; }
           }
         }
       }
@@ -1114,29 +833,18 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["original"].type.mapping
           && _yaml["original"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("language" in _yaml["original"]
-            && _yaml["original"]["language"].type.string
-            && _yaml["original"]["language"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.original_language = _yaml["original"]["language"].get!string;
-          }
-          if ("language_char" in _yaml["original"]
-            && _yaml["original"]["language_char"].type.string
-            && _yaml["original"]["language_char"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.original_language_char = _yaml["original"]["language_char"].get!string;
-          }
-          if ("source" in _yaml["original"]
-            && _yaml["original"]["source"].type.string
-            && _yaml["original"]["source"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.original_source = _yaml["original"]["source"].get!string;
-          }
-          if ("title" in _yaml["original"]
-            && _yaml["original"]["title"].type.string
-            && _yaml["original"]["title"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.original_title = _yaml["original"]["title"].get!string;
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "original", "language");
+            if (!(_init_string.empty)) { _struct_composite.meta.original_language = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "original", "language_char");
+            if (!(_init_string.empty)) { _struct_composite.meta.original_language_char = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "original", "source");
+            if (!(_init_string.empty)) { _struct_composite.meta.original_source = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "original", "title");
+            if (!(_init_string.empty)) { _struct_composite.meta.original_title = _init_string; }
           }
         }
       }
@@ -1151,59 +859,34 @@ template contentYAMLtoSpineStruct() {
         if (_yaml["rights"].type.mapping
           && _yaml["rights"].tag.match(rgx_y.yaml_tag_is_map)
         ) {
-          if ("copyright" in _yaml["rights"]
-            && _yaml["rights"]["copyright"].type.string
-            && _yaml["rights"]["copyright"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright = check_input_markup(_yaml["rights"]["copyright"].get!string);
-          }
-          if ("copyright_text" in _yaml["rights"]
-            && _yaml["rights"]["copyright_text"].type.string
-            && _yaml["rights"]["copyright_text"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_text = _yaml["rights"]["copyright_text"].get!string;
-          }
-          if ("copyright_audio" in _yaml["rights"]
-            && _yaml["rights"]["copyright_audio"].type.string
-            && _yaml["rights"]["copyright_audio"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_audio = _yaml["rights"]["copyright_audio"].get!string;
-          }
-          if ("copyright_cover" in _yaml["rights"]
-            && _yaml["rights"]["copyright_cover"].type.string
-            && _yaml["rights"]["copyright_cover"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_cover = _yaml["rights"]["copyright_cover"].get!string;
-          }
-          if ("copyright_illustrations" in _yaml["rights"]
-            && _yaml["rights"]["copyright_illustrations"].type.string
-            && _yaml["rights"]["copyright_illustrations"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_illustrations = _yaml["rights"]["copyright_illustrations"].get!string;
-          }
-          if ("copyright_photographs" in _yaml["rights"]
-            && _yaml["rights"]["copyright_photographs"].type.string
-            && _yaml["rights"]["copyright_photographs"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_photographs = _yaml["rights"]["copyright_photographs"].get!string;
-          }
-          if ("copyright_translation" in _yaml["rights"]
-            && _yaml["rights"]["copyright_translation"].type.string
-            && _yaml["rights"]["copyright_translation"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_translation = _yaml["rights"]["copyright_translation"].get!string;
-          }
-          if ("copyright_video" in _yaml["rights"]
-            && _yaml["rights"]["copyright_video"].type.string
-            && _yaml["rights"]["copyright_video"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_copyright_video = _yaml["rights"]["copyright_video"].get!string;
-          }
-          if ("license" in _yaml["rights"]
-            && _yaml["rights"]["license"].type.string
-            && _yaml["rights"]["license"].tag.match(rgx_y.yaml_tag_is_str)
-          ) {
-            _struct_composite.meta.rights_license = check_input_markup(_yaml["rights"]["license"].get!string);
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright", true);
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_text");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_text = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_audio");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_audio = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_cover");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_cover = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_illustrations");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_illustrations = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_photographs");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_photographs = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_translation");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_translation = _init_string; }
+          } {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "copyright_video");
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_copyright_video = _init_string; }
+          }
+          {
+            _init_string = ""; _init_string = _get_yaml_node_string(_yaml, _init_string, "rights", "license", true);
+            if (!(_init_string.empty)) { _struct_composite.meta.rights_license = _init_string; }
           }
         }
       }
@@ -1217,12 +900,12 @@ template configParseYAMLreturnSpineStruct() {
     sisudoc.meta.conf_make_meta_structs,
     sisudoc.meta.conf_make_meta_json;
   mixin contentYAMLtoSpineStruct;
-  @system auto configParseYAMLreturnSpineStruct(T,CCm,M,O,Cfg)(
-    T       _document_struct,
-    CCm     _make_and_meta_struct,
-    M       _manifested,
-    O       _opt_action,
-    Cfg     _cfg
+  @system ConfComposite configParseYAMLreturnSpineStruct(T,M,O,Cfg)(
+    T             _document_struct,
+    ConfComposite _make_and_meta_struct,
+    M             _manifested,
+    O             _opt_action,
+    Cfg           _cfg
   ){
     Node _yaml;
     if (_document_struct.content.length > 0) {
@@ -1249,7 +932,7 @@ template docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct() {
     std.exception,
     std.regex,
     std.stdio,
-    std.traits,
+    // std.traits,
     std.typecons,
     std.utf,
     std.conv : to;
@@ -1265,12 +948,12 @@ template docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct() {
   static auto rgx = RgxI();
   mixin spineRgxYamlTags;
   static auto rgx_y = RgxYaml();
-  @system auto docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct(CCm,Src,M,O,Cfg)(
-    Src     header_src,
-    CCm     _make_and_meta_struct,
-    M       _manifested,
-    O       _opt_action,
-    Cfg     _cfg,
+  @system ConfComposite docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct(Src,M,O,Cfg)(
+    Src           header_src,
+    ConfComposite _make_and_meta_struct,
+    M             _manifested,
+    O             _opt_action,
+    Cfg           _cfg,
   ) {
     Node _yaml;
     try {
diff --git a/src/sisudoc/meta/metadoc.d b/src/sisudoc/meta/metadoc.d
index 25f28b6..901588c 100644
--- a/src/sisudoc/meta/metadoc.d
+++ b/src/sisudoc/meta/metadoc.d
@@ -68,13 +68,13 @@ template spineAbstraction() {
   mixin outputHub;
   enum makeMeta { make, meta }
   enum docAbst  { doc_abstract_obj, doc_has }
-  @system auto spineAbstraction(E,P,O,Cfg,M,S)(
-    E _env,
-    P program_info,
-    O _opt_action,
-    Cfg _cfg,
-    M _manifest,
-    S _make_and_meta_struct
+  @system auto spineAbstraction(E,P,O,Cfg,M)(
+    E             _env,
+    P             program_info,
+    O             _opt_action,
+    Cfg           _cfg,
+    M             _manifest,
+    ConfComposite _make_and_meta_struct
   ){
     { /+ document config/make file +/
       auto _config_document_struct = readConfigDoc!()(_manifest, _env);
@@ -190,7 +190,7 @@ template spineAbstraction() {
           ~ ":" ~ _st.second.to!string;
         return _time;
       }
-      auto conf_make_meta() {
+      ConfComposite conf_make_meta() {
         return _make_and_meta_struct;
       }
       auto doc_digest() {