yaml doc headers, protect harvest

- protect harvest from missing doc header metadata
  - title & author required
- removed crude rgx yaml check
  (rely on yaml parser)

2 files changed, 30 insertions, 30 deletions

diff --git a/src/doc_reform/meta/conf_make_meta_yaml.d b/src/doc_reform/meta/conf_make_meta_yaml.d
index 8f1f885..5576b1c 100644
--- a/src/doc_reform/meta/conf_make_meta_yaml.d
+++ b/src/doc_reform/meta/conf_make_meta_yaml.d
@@ -794,14 +794,17 @@ static template configParseYAMLreturnSpineStruct() {
     CCm     _make_and_meta_struct,
     M       _manifested
   ){
-    Node yaml_root;
-    try {
-      yaml_root = Loader.fromString(_document_struct.content).load();
-      _make_and_meta_struct
-        = contentYAMLtoSpineStruct!()(_make_and_meta_struct, yaml_root, _manifested, _document_struct.filename); // struct from yaml
-    } catch {
-      import std.stdio;
-      writeln("ERROR failed to read content, not parsed as yaml");
+    Node _yaml;
+    if (_document_struct.content.length > 0) {
+      try {
+        _yaml = Loader.fromString(_document_struct.content).load();
+        _make_and_meta_struct
+          = contentYAMLtoSpineStruct!()(_make_and_meta_struct, _yaml, _manifested, _document_struct.filename); // struct from yaml
+      } catch {
+        import std.stdio;
+        writeln("ERROR failed to parse content as yaml: ", _document_struct.filename);
+        // writeln(_document_struct.content);
+      }
     }
     return _make_and_meta_struct;
   }
@@ -829,16 +832,17 @@ static template docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct() {
     CCm     _make_and_meta_struct,
     M       _manifested,
   ) {
-    Node _yaml_root;
+    Node _yaml;
     try {
-      _yaml_root = Loader.fromString(header_src).load();
+      _yaml = Loader.fromString(header_src).load();
+      if (("title" in _yaml) && ("creator" in _yaml)) {} else { // need test for _yaml content (does not work)
+        writeln("ERROR failed to read document header, yaml header does not contain essential information related to title and author");
+      }
+      return contentYAMLtoSpineStruct!()(_make_and_meta_struct, _yaml, _manifested, "header");
     } catch {
       import std.stdio;
-      writeln("ERROR failed to read document header, not parsed as yaml");
+      writeln("ERROR failed to read document header, header not parsed as yaml: ", _manifested.src.filename);
+      return _make_and_meta_struct;
     }
-    // need test for _yaml_root content
-    auto _header_and_make_and_meta_struct
-      = contentYAMLtoSpineStruct!()(_make_and_meta_struct, _yaml_root, _manifested, "header");
-    return _header_and_make_and_meta_struct;
   }
 }
diff --git a/src/doc_reform/meta/metadoc.d b/src/doc_reform/meta/metadoc.d
index b81dfb2..e45139d 100644
--- a/src/doc_reform/meta/metadoc.d
+++ b/src/doc_reform/meta/metadoc.d
@@ -26,7 +26,7 @@ template spineAbstraction() {
   mixin spineBiblio;
   mixin spineRgxInitFlags;
   mixin outputHub;
-  enum headBody { header, body_content, header_type, insert_file_list, image_list }
+  enum headBody { header, body_content, insert_file_list, image_list }
   enum makeMeta { make, meta }
   enum docAbst  { doc_abstract_obj, doc_has }
   static auto rgx = Rgx();
@@ -39,10 +39,8 @@ template spineAbstraction() {
   ){
     { /+ document config/make file +/
       auto _config_document_struct = readConfigDoc!()(_manifest, _env);
-      if (_config_document_struct.filetype == "yaml") {
-        import doc_reform.meta.conf_make_meta_yaml;
-        _make_and_meta_struct = _config_document_struct.configParseYAMLreturnSpineStruct!()(_make_and_meta_struct, _manifest);
-      }
+      import doc_reform.meta.conf_make_meta_yaml;
+      _make_and_meta_struct = _config_document_struct.configParseYAMLreturnSpineStruct!()(_make_and_meta_struct, _manifest);
     }
     /+ ↓ read file (filename with path) +/
     /+ ↓ file tuple of header and content +/
@@ -55,7 +53,7 @@ template spineAbstraction() {
     auto _header_body_insertfilelist_imagelist
       = spineRawMarkupContent!()(_opt_action, _manifest.src.path_and_fn);
     static assert(!isTypeTuple!(_header_body_insertfilelist_imagelist));
-    static assert(_header_body_insertfilelist_imagelist.length==5);
+    static assert(_header_body_insertfilelist_imagelist.length==4);
     if ((_opt_action.debug_do)
     || (_opt_action.very_verbose)
     ) {
@@ -72,15 +70,13 @@ template spineAbstraction() {
     ) {
       writeln("step2 commence → (read document header (yaml) return struct)");
     }
-    if (_header_body_insertfilelist_imagelist[headBody.header_type] == "yaml") {
-      import doc_reform.meta.conf_make_meta_yaml;
-      _make_and_meta_struct =
-        docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct!()(
-          _header_body_insertfilelist_imagelist[headBody.header],
-          _make_and_meta_struct,
-          _manifest,
-        );
-    }
+    import doc_reform.meta.conf_make_meta_yaml;
+    _make_and_meta_struct =
+      docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct!()(
+        _header_body_insertfilelist_imagelist[headBody.header],
+        _make_and_meta_struct,
+        _manifest,
+      );
     if ((_opt_action.debug_do)
     || (_opt_action.very_verbose)
     ) {