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// Note: This file is temporarily copied here from the Sail compiler. It can
// be removed when Sail 0.18 is released.
/*==========================================================================*/
/* Sail */
/* */
/* Sail and the Sail architecture models here, comprising all files and */
/* directories except the ASL-derived Sail code in the aarch64 directory, */
/* are subject to the BSD two-clause licence below. */
/* */
/* The ASL derived parts of the ARMv8.3 specification in */
/* aarch64/no_vector and aarch64/full are copyright ARM Ltd. */
/* */
/* Copyright (c) 2013-2021 */
/* 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 */
/* Alastair Reid (Arm Ltd) */
/* */
/* All rights reserved. */
/* */
/* This work was partially supported by EPSRC grant EP/K008528/1 <a */
/* href="http://www.cl.cam.ac.uk/users/pes20/rems">REMS: Rigorous */
/* Engineering for Mainstream Systems</a>, an ARM iCASE award, EPSRC IAA */
/* KTF funding, and donations from Arm. This project has received */
/* funding from the European Research Council (ERC) under the European */
/* Union’s Horizon 2020 research and innovation programme (grant */
/* agreement No 789108, ELVER). */
/* */
/* This software was developed by SRI International and the University of */
/* Cambridge Computer Laboratory (Department of Computer Science and */
/* Technology) under DARPA/AFRL contracts FA8650-18-C-7809 ("CIFV") */
/* and FA8750-10-C-0237 ("CTSRD"). */
/* */
/* 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. */
/*==========================================================================*/
$ifndef _MAPPING
$define _MAPPING
$include <arith.sail>
$include <option.sail>
val string_take = pure "string_take" : (string, nat) -> string
val string_drop = pure "string_drop" : (string, nat) -> string
val string_length = pure "string_length" : string -> nat
val string_append = pure {coq: "String.append", c: "concat_str", _: "string_append"} : (string, string) -> string
val string_startswith = pure "string_startswith" : (string, string) -> bool
val n_leading_spaces = pure { coq: "n_leading_spaces_Z" } : string -> nat
function n_leading_spaces s =
match s {
"" => 0,
_ => match string_take(s, 1) {
" " => 1 + n_leading_spaces(string_drop(s, 1)),
_ => 0
}
}
/*!
In a string mapping this is treated as `[ ]+`, i.e one or more space
characters. It is printed as a single space `" "`.
*/
val spc : unit <-> string
function spc_forwards() = " "
function spc_forwards_matches() = true
function spc_backwards _ = ()
function spc_backwards_matches s = {
let len = string_length(s);
n_leading_spaces(s) == len & len > 0
}
/*!
In a string mapping this is treated as `[ ]*`, i.e. zero or more space
characters. It is printed as the empty string.
*/
val opt_spc : unit <-> string
function opt_spc_forwards() = ""
function opt_spc_forwards_matches() = true
function opt_spc_backwards _ = ()
function opt_spc_backwards_matches s = n_leading_spaces(s) == string_length(s)
/*!
Like `opt_spc`, in a string mapping this is treated as `[ ]*`, i.e. zero or more space
characters. It differs however in that it is printed as a single space `" "`.
*/
val def_spc : unit <-> string
function def_spc_forwards() = " "
function def_spc_forwards_matches() = true
function def_spc_backwards _ = ()
function def_spc_backwards_matches s = n_leading_spaces(s) == string_length(s)
mapping sep : unit <-> string = {
() <-> opt_spc() ^ "," ^ def_spc()
}
$endif
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