Sed's java implementation

A non-production project to implement Linux's SED in Java. It supports following options of SED command

• Basic regex substitution using s///g
• Support for -n
  • -n '2,4p' - Prints the specified line number
  • -n /pattern/p filename - Prints the line which satisy the pattern
• G - Add double-spacing to a file
• /^$/d - Strip trailing blank lines from file
• -i s/Search/ReplaceWith/g - Edit in-place