lib/linguist/generated.rb in github-linguist-4.7.4 vs lib/linguist/generated.rb in github-linguist-4.7.5

@@ -70,11 +70,13 @@
       generated_apache_thrift? ||
       generated_jni_header? ||
       vcr_cassette? ||
       generated_module? ||
       generated_unity3d_meta? ||
-      generated_racc?
+      generated_racc? ||
+      generated_jflex? ||
+      generated_grammarkit?
     end
 
     # Internal: Is the blob an Xcode file?
     #
     # Generated if the file extension is an Xcode
@@ -370,8 +372,35 @@
     # Return true or false
     def generated_racc?
       return false unless extname == '.rb'
       return false unless lines.count > 2
       return lines[2].start_with?("# This file is automatically generated by Racc")
+    end
+
+    # Internal: Is this a JFlex-generated file?
+    #
+    # A JFlex-generated file contains:
+    # /* The following code was generated by JFlex x.y.z on d/at/e ti:me */
+    # on the first line.
+    #
+    # Return true or false
+    def generated_jflex?
+      return false unless extname == '.java'
+      return false unless lines.count > 1
+      return lines[0].start_with?("/* The following code was generated by JFlex ")
+    end
+
+    # Internal: Is this a GrammarKit-generated file?
+    #
+    # A GrammarKit-generated file typically contain:
+    # // This is a generated file. Not intended for manual editing.
+    # on the first line. This is not always the case, as it's possible to
+    # customize the class header.
+    #
+    # Return true or false
+    def generated_grammarkit?
+      return false unless extname == '.java'
+      return false unless lines.count > 1
+      return lines[0].start_with?("// This is a generated file. Not intended for manual editing.")
     end
   end
 end