A quick comparison

Rough sizes

• The old handwritten lexer for Haskell: 664 lines

• The new lexer generator: 678 lines
• The lexer specification for Haskell: 193 lines

• The new layout processing: 100 lines
• Size of the Haskell code for the generated DFA: 5500 lines (148 states)

Speed?

• The new lexer+parser seems to be 10-15% slower than the old one.
• The Haskell Prelude and Standard Libraries (2943 lines) are still parsed in less than one second (on a 600MHz Pentium III).