The  #f is a boolean value used to tell a EDA program how to update the corresponding data. The #f, tells the system to only update new data, whereas #t tells the system to overwrite all previous data. This always comes after the last ")" and is never quoted. Im not sure what you would call this?

I changed the code to return $item[3] and I now get a nice looking structure. One thing I notice is when I try to parse multiple entries, I get the bad netlist error again. For example:

Consider my data is the following: 

my $text = <<'_EOT_';
dbSetCellPortTypes "/opt/mylib/s956M" "blahblah" '(
  ("gnd!" "Inout" "Ground" )
  ("vint!" "Inout" "Power" )
) #f
dbSetCellPortTypes "/opt/mylib/s956M" "newCell" '(
  ("gnd!" "Inout" "Ground" )
  ("vint!" "Inout" "Power" )
) #f
_EOT_

[download]

I've tried changing the parse rule to the following as well: 

 parse    : <skip:'(?:\s*(?:#[^\n]*)?)'> portDef(s?) /\Z/
              { $item[2] }

[download]

What is the /\Z/ doing actually?

Thanks,

Frank

In reply to Re^6: Help with Parse::RecDescent grammar by dramguy
in thread Help with Parse::RecDescent grammar by dramguy

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