utils.rb in rtesseract-2.1.0

- old
+ new

@@ -1,5 +1,7 @@
+require 'open3'
+
 # RTesseract
 class RTesseract
   # Some utils methods
   module Utils
     # Remove files or Tempfile
@@ -20,15 +22,23 @@
       else
         File.unlink(file)
       end
       true
     end
+
+    # Extract tesseract version number
+    def self.version_number
+      out, err, st = Open3.capture3(RTesseract.default_command, "--version")
+      
+      version = err.split("\n")[0].split(" ")[1].split('.')[0, 2].join('.')
+      Float(version) rescue nil
+    end
   end
 end
 
 # Hash
 class Hash
   # return the value and remove from hash
   def option(attr_name, default)
     delete(attr_name.to_s) || delete(attr_name) || default
   end
-end
\ No newline at end of file
+end