forked from GitHub/gf-core
the Error type; better lexer error reporting
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@@ -11,9 +11,11 @@ resource Predef = {
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param PBool = PTrue | PFalse ;
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oper Int : Type = variants {} ; -- the type of integers
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oper Ints : Int -> Type = variants {} ; -- the type of integers from 0 to n
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oper Error : Type = variants {} ; -- the empty type
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oper Int : Type = variants {} ; -- the type of integers
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oper Ints : Int -> Type = variants {} ; -- the type of integers from 0 to n
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oper error : Str -> Error = variants {} ; -- forms error message
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oper length : Tok -> Int = variants {} ; -- length of string
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oper drop : Int -> Tok -> Tok = variants {} ; -- drop prefix of length
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oper take : Int -> Tok -> Tok = variants {} ; -- take prefix of length
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@@ -418,8 +418,13 @@ oper
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in mkV cry cries cried cried crying ;
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regDuplV fit =
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let fitt = fit + last fit in
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mkV fit (fit + "s") (fitt + "ed") (fitt + "ed") (fitt + "ing") ;
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case last fit of {
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("a" | "e" | "i" | "o" | "u" | "y") =>
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Predef.error (["final duplication makes no sense for"] ++ fit) ;
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t =>
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let fitt = fit + t in
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mkV fit (fit + "s") (fitt + "ed") (fitt + "ed") (fitt + "ing")
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} ;
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irregV x y z = let reg = (regV x).s in
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mkV x (reg ! VPres) y z (reg ! VPresPart) ** {s1 = [] ; lock_V = <>} ;
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