swh:1:snp:e3b0b9991945262e7cc28768373af4560caf7afa
Tip revision: ad0c16675d221938530269610308cd5a2c142687 authored by Software Heritage on 17 October 2018, 13:20:37 UTC
hal: Deposit 205 in collection hal
hal: Deposit 205 in collection hal
Tip revision: ad0c166
nesting.ml
(**************************************************************************)
(* -*- tuareg -*- *)
(* *)
(* Copyright (C) 2017,2018 Yann RĂ©gis-Gianas, Nicolas Jeannerod, *)
(* Ralf Treinen. *)
(* *)
(* This is free software: you can redistribute it and/or modify it *)
(* under the terms of the GNU General Public License, version 3. *)
(* *)
(* Additional terms apply, due to the reproduction of portions of *)
(* the POSIX standard. Please refer to the file COPYING for details. *)
(**************************************************************************)
type t =
| Backquotes of char * int
| Parentheses
| Braces
| DQuotes
| HereDocument of bool * string
let to_string = function
| Backquotes (c, level) ->
Printf.sprintf "@%c[%d]" c level
| Parentheses ->
"("
| Braces ->
"{"
| DQuotes ->
"\""
| HereDocument (dashed, delimiter) ->
Printf.sprintf "HereDoc[%B, %s]" dashed delimiter
let string_of_level l = String.concat " : " (List.map to_string l)
let rec under_backquoted_style_command_substitution = function
| [] -> false
| Backquotes ('`', _) :: _ -> true
| Backquotes ('(', _) :: _ -> false
| _ :: level -> under_backquoted_style_command_substitution level