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|
(**************************************************************************)
(* Sail *)
(* *)
(* Copyright (c) 2013-2017 *)
(* Kathyrn Gray *)
(* Shaked Flur *)
(* Stephen Kell *)
(* Gabriel Kerneis *)
(* Robert Norton-Wright *)
(* Christopher Pulte *)
(* Peter Sewell *)
(* Alasdair Armstrong *)
(* Brian Campbell *)
(* Thomas Bauereiss *)
(* Anthony Fox *)
(* Jon French *)
(* Dominic Mulligan *)
(* Stephen Kell *)
(* Mark Wassell *)
(* *)
(* All rights reserved. *)
(* *)
(* This software was developed by the University of Cambridge Computer *)
(* Laboratory as part of the Rigorous Engineering of Mainstream Systems *)
(* (REMS) project, funded by EPSRC grant EP/K008528/1. *)
(* *)
(* Redistribution and use in source and binary forms, with or without *)
(* modification, are permitted provided that the following conditions *)
(* are met: *)
(* 1. Redistributions of source code must retain the above copyright *)
(* notice, this list of conditions and the following disclaimer. *)
(* 2. Redistributions in binary form must reproduce the above copyright *)
(* notice, this list of conditions and the following disclaimer in *)
(* the documentation and/or other materials provided with the *)
(* distribution. *)
(* *)
(* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' *)
(* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *)
(* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *)
(* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR *)
(* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *)
(* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *)
(* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF *)
(* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *)
(* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, *)
(* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT *)
(* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *)
(* SUCH DAMAGE. *)
(**************************************************************************)
{
open Gdbmi_parser
let unescaped s = Scanf.sscanf ("\"" ^ s ^ "\"") "%S%!" (fun x -> x)
}
let ws = [' ''\t']+
let letter = ['a'-'z''A'-'Z''?']
let digit = ['0'-'9']
let hexdigit = ['0'-'9''A'-'F''a'-'f']
let alphanum = letter|digit
let startident = letter
let ident = alphanum|['-']
let escape_sequence = ('\\' ['\\''\"''\'''n''t''b''r']) | ('\\' digit digit digit) | ('\\' 'x' hexdigit hexdigit)
rule token = parse
| ws
{ token lexbuf }
| "\n"
{ Lexing.new_line lexbuf;
token lexbuf }
| "=" { Eq }
| "[" { Lsquare }
| "]" { Rsquare }
| "{" { Lcurly }
| "}" { Rcurly }
| "," { Comma }
| "^" { Caret }
| digit+ as i { Num (int_of_string i) }
| startident ident* as i { Id i }
| '"' { String (string (Lexing.lexeme_start_p lexbuf) (Buffer.create 10) lexbuf) }
| eof { Eof }
and string pos b = parse
| ([^'"''\n''\\']*'\n' as i) { Lexing.new_line lexbuf;
Buffer.add_string b i;
string pos b lexbuf }
| ([^'"''\n''\\']* as i) { Buffer.add_string b i; string pos b lexbuf }
| escape_sequence as i { Buffer.add_string b i; string pos b lexbuf }
| '\\' '\n' ws { Lexing.new_line lexbuf; string pos b lexbuf }
| '\\' { assert false (*raise (Reporting.Fatal_error (Reporting.Err_syntax (pos,
"illegal backslash escape in string"*) }
| '"' { let s = unescaped(Buffer.contents b) in
(*try Ulib.UTF8.validate s; s
with Ulib.UTF8.Malformed_code ->
raise (Reporting.Fatal_error (Reporting.Err_syntax (pos,
"String literal is not valid utf8"))) *) s }
| eof { assert false (*raise (Reporting.Fatal_error (Reporting.Err_syntax (pos,
"String literal not terminated")))*) }
|
