How make grammar case sensitive?

[Anders Eriksson]

I'm trying to make my grammar case sensitive. I have used "case sensitive"=True, but it still doesn't work

I have this grammar, see below, and the problem is in this line:

<type> ::=  | 'M' | 'm'

I get Warning: line 43 Duplicate production

The production 'type' was redefined.

What have I done wrong?

// Anders

!============================================================

"Name"     = 'Chord Tracks'

"Author"   = 'Anders Eriksson'

"Version"  = '1.0'

"About"    = 'The chord track in a lead sheet.'

"Case Sensitive" = True

"Start Symbol" = <Program>

! -------------------------------------------------

! Character Sets

! -------------------------------------------------

{names} = [ABCDEFG]

! -------------------------------------------------

! Terminals

! -------------------------------------------------

Bar = '|'

    

Slash = '/'

      

ChordName = {names}

     

! -------------------------------------------------

! Rules

! -------------------------------------------------

! The grammar starts below

<Program> ::= <Tracks>

           

<Tracks> ::= <Track> <Tracks>

          | <Track>

          

<Track> ::= <Chord> | Bar | Slash

         

<Chord> ::= 'NC' | ChordName <Accedental> <Modifier>

         

<Accedental> ::= '#' | 'b' | 

 

<Modifier> ::= <type> <spec>

            

<type> ::=  | 'M' | 'm'

      

<spec> ::=  | '7' | '9' | '11' | '13'

                      

!============================================================

[Estuardo Lopez]

try it:

{ems} = [Mm]

<type> ::=  ems

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