(* The files for the simple WHILE language 
   can be compiled in the following way:                    mrh 10/10 2007  *)


[mrh]$ mosmlc -c Absyn.sml   
           produces two compiled units (Absyn.ui  Absyn.uo)

[mrh]$ mosmllex WHILElex.lex
           produce the file WHILElex.sml, i.e. the code for the lexer

[mrh]$ mosmlyac -v WHILEpar.grm
         produces 
           WHILEpar.output  - messages from the parser, including conflicts
           WHILEpar.sig     - signature for the parser 
           WHILEpar.sml     - code for the parser

[mrh]$ mosmlc -c -liberal WHILEpar.sig WHILEpar.sml
           produces two compiled units (WHILEpar.ui  WHILEpar.uo) for the parser

[mrh]$ mosmlc -c WHILElex.sml
           produces two compiled units (WHILEpar.ui  WHILEpar.uo) for the lexer

[mrh]$ mosml parse.sml
           loads the modules for Absyn, the lexer and the parser
           --- use it together with Interpreter.sml