title: how to implement complex pattern matching in Spring batch using PatternMatchingCompositeLineMapper
body: <p>How can we implement pattern matching in Spring Batch, I am using <code>org.springframework.batch.item.file.mapping.PatternMatchingCompositeLineMapper</code>
  I got to know that I can only use ? or * here to create my pattern.</p>
  
  <p>My requirement is like below:
  I have a fixed length record file and in each record I have  two fields at 35th and 36th position which gives record type
  for example below "05" is record type which is at 35th and 36th position and total length of record is 400.</p>
  
  <p>0000001131444444444444445589868444050MarketsABNAKKAAAAKKKA05568551456...........</p>
  
  <p>I tried to write regular expression but it does not work, i got to know only two special character can be used which are * and ? .</p>
  
  <p>In that case I can only write like this 
  ??????????????????????????????????05?????????????..................</p>
  
  <p>but it does not seem to be good solution.</p>
  
  <p>Please suggest how can I write this solution, Thanks a lot for help in advance</p>