diff options
Diffstat (limited to 'plugins/syntax/string_syntax.ml')
| -rw-r--r-- | plugins/syntax/string_syntax.ml | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/plugins/syntax/string_syntax.ml b/plugins/syntax/string_syntax.ml index a4335a508b..c22869f4d6 100644 --- a/plugins/syntax/string_syntax.ml +++ b/plugins/syntax/string_syntax.ml @@ -1,12 +1,14 @@ -(***********************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *) -(* \VV/ *************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) -(***********************************************************************) +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) -open API +open Names open Globnames open Ascii_syntax_plugin.Ascii_syntax open Glob_term @@ -32,25 +34,29 @@ let make_reference id = find_reference "String interpretation" string_module id let glob_String = lazy (make_reference "String") let glob_EmptyString = lazy (make_reference "EmptyString") +let is_gr c gr = match DAst.get c with +| GRef (r, _) -> GlobRef.equal r gr +| _ -> false + open Lazy let interp_string ?loc s = let le = String.length s in let rec aux n = - if n = le then CAst.make ?loc @@ GRef (force glob_EmptyString, None) else - CAst.make ?loc @@ GApp (CAst.make ?loc @@ GRef (force glob_String, None), + if n = le then DAst.make ?loc @@ GRef (force glob_EmptyString, None) else + DAst.make ?loc @@ GApp (DAst.make ?loc @@ GRef (force glob_String, None), [interp_ascii ?loc (int_of_char s.[n]); aux (n+1)]) in aux 0 -let uninterp_string r = +let uninterp_string (AnyGlobConstr r) = try let b = Buffer.create 16 in - let rec aux = function - | { CAst.v = GApp ({ CAst.v = GRef (k,_) },[a;s]) } when eq_gr k (force glob_String) -> + let rec aux c = match DAst.get c with + | GApp (k,[a;s]) when is_gr k (force glob_String) -> (match uninterp_ascii a with | Some c -> Buffer.add_char b (Char.chr c); aux s | _ -> raise Non_closed_string) - | { CAst.v = GRef (z,_) } when eq_gr z (force glob_EmptyString) -> + | GRef (z,_) when GlobRef.equal z (force glob_EmptyString) -> Some (Buffer.contents b) | _ -> raise Non_closed_string @@ -62,6 +68,6 @@ let _ = Notation.declare_string_interpreter "string_scope" (string_path,["Coq";"Strings";"String"]) interp_string - ([CAst.make @@ GRef (static_glob_String,None); - CAst.make @@ GRef (static_glob_EmptyString,None)], + ([DAst.make @@ GRef (static_glob_String,None); + DAst.make @@ GRef (static_glob_EmptyString,None)], uninterp_string, true) |