When the following command is typed,/vol/lab/secondyear/bin/genlr dimension, I have got these messages:

1. dimension.toks -> ScannerTokens and ParserTokens
2. dimension.gram and ParserTokens -> dimension.lalr
3. ScannerTokens and dimension.scan -> dimension.rex
4. dimension.lalr -> Parser.def, Parser.mod and Parser.Tab
 51,  1: Warning     not reachable 'real'
 54,  1: Warning     not reachable 'BASICDIMENSION'
 55,  1: Warning     not reachable 'COMPLEXDIMENSION'
 56,  1: Warning     not reachable 'BASICUNIT'
 57,  1: Warning     not reachable 'COMPLEXUNIT'
 58,  1: Warning     not reachable 'UNITOF'
 59,  1: Warning 'UNITOF'
 59,  1: Warning     not reachable 'WITH'
101,  8: Warning     not reachable 'UMINUS'
  8 warning(s)  30 information(s)
5. dimension.rex -> Scanner.def, Scanner.mod and Scanner.Tab
 147, 22: Error       syntax error
 147, 22: Information expected tokens: Ident Number String Char , : / | + - * ? ( [ { > :- 
 147, 22: Repair      token inserted : :
 147, 22: Repair      token inserted : TargetCode
 147, 24: Error       syntax error
 147, 24: Information expected tokens: Ident 
 147, 24: Repair      token inserted : Ident
   4,57772: Error       identifier undefined: 
 147, 24: Repair      token inserted : #
 147, 24: Repair      token inserted : Char
 147, 33: Error       syntax error
 147, 33: Information expected tokens: Ident Number String Char , : / | + - * ? ( [ { > :- 
 147, 33: Repair      token inserted : :
 147, 33: Repair      token inserted : TargetCode
 147, 35: Error       syntax error
 147, 35: Information expected tokes: Ident 
 147, 35: Repair      token inserted : Ident
   4,57772: Error       identifier undefined: 
 147, 35: Repair      token inserted : #
 147, 35: Repair      token inserted : Char