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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU General Public License as published by *)
(* the Free Software Foundation, either version 2 of the License, or *)
(* (at your option) any later version. This file is also distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
{
open BinNums
open Camlcoq
open CMparser
exception Error of string
}
let blank = [' ' '\009' '\012' '\010' '\013']
let floatlit =
("-"? (['0'-'9'] ['0'-'9' '_']*
('.' ['0'-'9' '_']* )?
(['e' 'E'] ['+' '-']? ['0'-'9'] ['0'-'9' '_']*)? )) | "inf" | "nan"
let ident = ['A'-'Z' 'a'-'z' '_'] ['A'-'Z' 'a'-'z' '_' '$' '0'-'9']*
let qident = '\'' [ ^ '\'' ]+ '\''
let temp = "$" ['1'-'9'] ['0'-'9']*
let intlit = "-"? ( ['0'-'9']+ | "0x" ['0'-'9' 'a'-'f' 'A'-'F']+
| "0o" ['0'-'7']+ | "0b" ['0'-'1']+ )
let stringlit = "\"" [ ^ '"' ] * '"'
rule token = parse
| blank + { token lexbuf }
| "/*" { comment lexbuf; token lexbuf }
| "absf" { ABSF }
| "&" { AMPERSAND }
| "&l" { AMPERSANDL }
| "!" { BANG }
| "!=" { BANGEQUAL }
| "!=f" { BANGEQUALF }
| "!=l" { BANGEQUALL }
| "!=lu" { BANGEQUALLU }
| "!=u" { BANGEQUALU }
| "|" { BAR }
| "|l" { BARL }
| "builtin" { BUILTIN }
| "^" { CARET }
| "^l" { CARETL }
| "case" { CASE }
| ":" { COLON }
| "," { COMMA }
| "default" { DEFAULT }
| "else" { ELSE }
| "=" { EQUAL }
| "==" { EQUALEQUAL }
| "==f" { EQUALEQUALF }
| "==l" { EQUALEQUALL }
| "==lu" { EQUALEQUALLU }
| "==u" { EQUALEQUALU }
| "exit" { EXIT }
| "extern" { EXTERN }
| "float" { FLOAT }
| "float32" { FLOAT32 }
| "float64" { FLOAT64 }
| "floatofint" { FLOATOFINT }
| "floatofintu" { FLOATOFINTU }
| "floatoflong" { FLOATOFLONG }
| "floatoflongu" { FLOATOFLONGU }
| "goto" { GOTO }
| ">" { GREATER }
| ">f" { GREATERF }
| ">l" { GREATERL }
| ">lu" { GREATERLU }
| ">u" { GREATERU }
| ">=" { GREATEREQUAL }
| ">=f" { GREATEREQUALF }
| ">=l" { GREATEREQUALL }
| ">=lu" { GREATEREQUALLU }
| ">=u" { GREATEREQUALU }
| ">>" { GREATERGREATER }
| ">>u" { GREATERGREATERU }
| ">>l" { GREATERGREATERL }
| ">>lu" { GREATERGREATERLU }
| "if" { IF }
| "int" { INT }
| "int16" { INT16 }
| "int16s" { INT16S }
| "int16u" { INT16U }
| "int32" { INT32 }
| "int64" { INT64 }
| "int8" { INT8 }
| "int8s" { INT8S }
| "int8u" { INT8U }
| "intoffloat" { INTOFFLOAT }
| "intuoffloat" { INTUOFFLOAT }
| "intoflong" { INTOFLONG }
| "{" { LBRACE }
| "{{" { LBRACELBRACE }
| "[" { LBRACKET }
| "<" { LESS }
| "<u" { LESSU }
| "<l" { LESSL }
| "<lu" { LESSLU }
| "<f" { LESSF }
| "<=" { LESSEQUAL }
| "<=u" { LESSEQUALU }
| "<=f" { LESSEQUALF }
| "<=l" { LESSEQUALL }
| "<=lu" { LESSEQUALLU }
| "<<" { LESSLESS }
| "<<l" { LESSLESSL }
| "long" { LONG }
| "longofint" { LONGOFINT }
| "longofintu" { LONGOFINTU }
| "longoffloat" { LONGOFFLOAT }
| "longuoffloat" { LONGUOFFLOAT }
| "loop" { LOOP }
| "(" { LPAREN }
| "match" { MATCH }
| "-" { MINUS }
| "->" { MINUSGREATER }
| "-f" { MINUSF }
| "-l" { MINUSL }
| "%" { PERCENT }
| "%l" { PERCENTL }
| "%lu" { PERCENTLU }
| "%u" { PERCENTU }
| "+" { PLUS }
| "+f" { PLUSF }
| "+l" { PLUSL }
| "}" { RBRACE }
| "}}" { RBRACERBRACE }
| "]" { RBRACKET }
| "readonly" { READONLY }
| "return" { RETURN }
| ")" { RPAREN }
| ";" { SEMICOLON }
| "/" { SLASH }
| "/f" { SLASHF }
| "/l" { SLASHL }
| "/lu" { SLASHLU }
| "/u" { SLASHU }
| "single" { SINGLE }
| "stack" { STACK }
| "*" { STAR }
| "*f" { STARF }
| "*l" { STARL }
| "switch" { SWITCH }
| "switchl" { SWITCHL }
| "tailcall" { TAILCALL }
| "~" { TILDE }
| "~l" { TILDEL }
| "var" { VAR }
| "void" { VOID }
| "volatile" { VOLATILE }
| "while" { WHILE }
| intlit"LL" { let s = Lexing.lexeme lexbuf in
LONGLIT(Int64.of_string(String.sub s 0 (String.length s - 2))) }
| intlit { INTLIT(Int32.of_string(Lexing.lexeme lexbuf)) }
| floatlit { FLOATLIT(float_of_string(Lexing.lexeme lexbuf)) }
| stringlit { let s = Lexing.lexeme lexbuf in
STRINGLIT(String.sub s 1 (String.length s - 2)) }
| ident | temp { IDENT(Lexing.lexeme lexbuf) }
| qident { let s = Lexing.lexeme lexbuf in
IDENT(String.sub s 1 (String.length s - 2)) }
| eof { EOF }
| _ { raise(Error("illegal character `" ^ Char.escaped (Lexing.lexeme_char lexbuf 0) ^ "'")) }
and comment = parse
"*/" { () }
| eof { raise(Error "unterminated comment") }
| _ { comment lexbuf }
|
