--- alexandria-book-collection-manager-0.7.4/lib/alexandria/library_store.rb.broken_yaml	2019-10-25 01:20:07.000000000 +0900

+++ alexandria-book-collection-manager-0.7.4/lib/alexandria/library_store.rb	2020-01-03 17:38:07.340338529 +0900

@@ -48,8 +48,23 @@ module Alexandria

         Dir["*" + Library::EXT[:book]].each do |filename|

           test[1] = filename if (test[0]).zero?

+          book_valid_p = true

+

           unless File.size? test[1]

             log.warn { "Book file #{test[1]} was empty" }

+            book_valid_p = false

+          end

+

+          if book_valid_p

+            begin

+              book = self.regularize_book_from_yaml(test[1])

+            rescue Psych::SyntaxError => e

+              log.warn "Book file #{test[1]} could not be parsed"

+              book_valid_p = false

+            end

+          end

+

+          if not book_valid_p

             md = /([\dxX]{10,13})#{Library::EXT[:book]}/.match(filename)

             if md

               file_isbn = md[1]

@@ -60,7 +75,7 @@ module Alexandria

             end

             next

           end

-          book = regularize_book_from_yaml(test[1])

+

           old_isbn = book.isbn

           old_pub_year = book.publishing_year

           begin

@@ -193,6 +208,8 @@ module Alexandria

       # TODO: Ensure book loading passes through Book#initialize

       book = YAML.safe_load(text, permitted_classes: [Book, Time])

+      # TODO: Need check if this can be removed

+      # book = YAML.load(Syck::unescape(text))

       unless book.isbn.class == String

         # HACK