[ragel-users] Adding action slows Ragel compilation a lot

[Ed Hynes]

I'd like to use Ragel to scan some abc notation files, but have run into a problem where Ragel's compilation time expands by a couple of orders of magnitude when I add actions to certain transitions.  Below is a simplified test case that demonstrates the problem.

%%{
  machine test;

  action action_x {}
  
  b = ('a' [a-c]+ 'a') | ([a-c] >action_x 'b');

  main := ('c' b+)+;

}%%

The addition of the '>action_x' in machine b triggers the slowdown.  Any suggestions on how to workaround this problem?

Thanks,
Ed

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