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|
(* Generated by re2ocaml *)
(* re2ocaml $INPUT -o $OUTPUT -i *)
open String
type number = Int | Float | NaN
type state = {
yyinput: string;
mutable yycursor: int;
mutable yymarker: int;
mutable yyaccept: int;
}
let rec yy0 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
yyrecord.yycursor <- yyrecord.yycursor + 1;
match yych with
| '.' -> (yy3 [@tailcall]) yyrecord
| '0' -> (yy4 [@tailcall]) yyrecord
| '1'..'9' -> (yy5 [@tailcall]) yyrecord
| _ -> (yy1 [@tailcall]) yyrecord
and yy1 (yyrecord : state) : number =
(yy2 [@tailcall]) yyrecord
and yy2 (yyrecord : state) : number =
NaN
and yy3 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy7 [@tailcall]) yyrecord
| _ -> (yy2 [@tailcall]) yyrecord
and yy4 (yyrecord : state) : number =
yyrecord.yyaccept <- 0;
yyrecord.yymarker <- yyrecord.yycursor;
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '.' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy7 [@tailcall]) yyrecord
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy9 [@tailcall]) yyrecord
| 'E'
| 'e' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy11 [@tailcall]) yyrecord
| _ -> (yy2 [@tailcall]) yyrecord
and yy5 (yyrecord : state) : number =
yyrecord.yyaccept <- 1;
yyrecord.yymarker <- yyrecord.yycursor;
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '.' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy7 [@tailcall]) yyrecord
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy5 [@tailcall]) yyrecord
| 'E'
| 'e' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy11 [@tailcall]) yyrecord
| _ -> (yy6 [@tailcall]) yyrecord
and yy6 (yyrecord : state) : number =
Int
and yy7 (yyrecord : state) : number =
yyrecord.yyaccept <- 2;
yyrecord.yymarker <- yyrecord.yycursor;
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy7 [@tailcall]) yyrecord
| 'E'
| 'e' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy11 [@tailcall]) yyrecord
| _ -> (yy8 [@tailcall]) yyrecord
and yy8 (yyrecord : state) : number =
Float
and yy9 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '.' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy7 [@tailcall]) yyrecord
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy9 [@tailcall]) yyrecord
| 'E'
| 'e' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy11 [@tailcall]) yyrecord
| _ -> (yy10 [@tailcall]) yyrecord
and yy10 (yyrecord : state) : number =
yyrecord.yycursor <- yyrecord.yymarker;
match yyrecord.yyaccept with
| 0 -> (yy2 [@tailcall]) yyrecord
| 1 -> (yy6 [@tailcall]) yyrecord
| _ -> (yy8 [@tailcall]) yyrecord
and yy11 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '+'
| '-' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy12 [@tailcall]) yyrecord
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy13 [@tailcall]) yyrecord
| _ -> (yy10 [@tailcall]) yyrecord
and yy12 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy13 [@tailcall]) yyrecord
| _ -> (yy10 [@tailcall]) yyrecord
and yy13 (yyrecord : state) : number =
let yych = unsafe_get yyrecord.yyinput yyrecord.yycursor in
match yych with
| '0'..'9' ->
yyrecord.yycursor <- yyrecord.yycursor + 1;
(yy13 [@tailcall]) yyrecord
| _ -> (yy8 [@tailcall]) yyrecord
and lex (yyrecord : state) : number =
(yy0 [@tailcall]) yyrecord
let test(str, num) =
let st = {yyinput = str; yycursor = 0; yymarker = 0; yyaccept = 0}
in if not (lex st = num) then raise (Failure "error")
let main () =
test("123", Int);
test("123.4567", Float)
let _ = main ()
|
