32 lines
765 B
OCaml
32 lines
765 B
OCaml
{
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open Parser
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exception Eof
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}
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let lowercase = ['a'-'z']
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let uppercase = ['A'-'Z']
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let digit = ['0'-'9']
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let word = (lowercase | uppercase)*
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let var_id = lowercase lowercase* digit*
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let ty_id = uppercase uppercase* digit*
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rule token = parse
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| [' ' '\t'] { token lexbuf }
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| '\n' { EOL }
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| '+' { PLUS }
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| '*' { TIMES }
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| "True" { TOP }
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| "False" { BOT }
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| '(' { LPAREN }
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| ')' { RPAREN }
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| "fun" { FUN }
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| ':' { COLON }
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| "=>" { ARR }
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| "->" { TARR }
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| '~' { TILDE }
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| "exf" { EXFALSO }
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| var_id as s { VARID(s) }
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| ty_id as s { TYID(s) }
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| eof { raise Eof }
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