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|
(****************************************************************************)
(* the diy toolsuite *)
(* *)
(* Jade Alglave, University College London, UK. *)
(* Luc Maranget, INRIA Paris-Rocquencourt, France. *)
(* *)
(* Copyright 2015-present Institut National de Recherche en Informatique et *)
(* en Automatique and the authors. All rights reserved. *)
(* *)
(* This software is governed by the CeCILL-B license under French law and *)
(* abiding by the rules of distribution of free software. You can use, *)
(* modify and/ or redistribute the software under the terms of the CeCILL-B *)
(* license as circulated by CEA, CNRS and INRIA at the following URL *)
(* "http://www.cecill.info". We also give a copy in LICENSE.txt. *)
(****************************************************************************)
{
exception Error of string
type func =
| Appliable of string * string
| Sequence of string list
type t = {
source : Archs.t;
target : Archs.t;
funcs : (string * func) list;
conversions : (string * string) list
}
}
let space = [' ' '\t' '\r']
let blank = (space | '\n')
let archname = ([ '0'-'9' 'a'-'z' 'A'-'Z'])*
let arrow = ("->" | "maps" space "to")
let colon = [':']
rule main = parse
| space* (archname as src) space+ "to" space+ (archname as tgt) space* '\n' blank*
{ let (l, f) = conv [] [] lexbuf in
let (src,tgt) = match Archs.parse src,Archs.parse tgt with
| Some s,Some t -> s,t
| _ -> raise (Error "Source or target architecture unrecognized.")
in {
source = src;
target = tgt;
funcs = List.rev f;
conversions = List.rev l
}
}
| "" {raise (Error "Source or target architecture unspecified.")}
and conv l f = parse
| eof {(l,f)}
| '"' ([^'"']* as left) '"' blank* arrow blank* '"' ([^'"']* as right) '"' blank*
{
conv ((String.trim left, String.trim right)::l) f lexbuf
}
| '"' ([^'"']* as func) '"' blank* colon blank* '"' ([^'"']* as left) '"' blank* arrow blank* '"' ([^'"']* as right) '"' blank*
{
conv l ((String.trim func, Appliable(String.trim left, String.trim right))::f) lexbuf
}
| '"' ([^'"']* as func) '"' blank* colon blank* '"' (([^'"']* blank* '|' blank*)* [^'"']* as seq) '"' blank*
{
conv l ((String.trim func, Sequence(List.map (fun s -> String.trim s) (Misc.split_on_char '|' seq)))::f) lexbuf
}
| ("#"|"//") [^'\n']* '\n' { conv l f lexbuf }
| "" {
let last = match l with
| [] -> "*start*"
| (left,right)::_ ->
Printf.sprintf "\"%s\" -> \"%s\"" left right in
let msg =
Printf.sprintf
"Bad syntax in conversion rule, after %s" last in
raise (Error msg)}
{
let parse chin = main (Lexing.from_channel chin)
}
|
