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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: notation.mli 9694 2007-03-09 18:09:53Z herbelin $ i*)
(*i*)
open Util
open Pp
open Bigint
open Names
open Nametab
open Libnames
open Rawterm
open Topconstr
open Ppextend
(*i*)
(**********************************************************************)
(* Scopes *)
(*s A scope is a set of interpreters for symbols + optional
interpreter and printers for integers + optional delimiters *)
type level = precedence * tolerability list
type delimiters = string
type scope
type scopes (* = [scope_name list] *)
type local_scopes = tmp_scope_name option * scope_name list
val type_scope : scope_name
val declare_scope : scope_name -> unit
val current_scopes : unit -> scopes
(* Open scope *)
val open_close_scope :
(* locality *) bool * (* open *) bool * scope_name -> unit
(* Extend a list of scopes *)
val empty_scope_stack : scopes
val push_scope : scope_name -> scopes -> scopes
(* Declare delimiters for printing *)
val declare_delimiters : scope_name -> delimiters -> unit
val find_delimiters_scope : loc -> delimiters -> scope_name
(*s Declare and uses back and forth an interpretation of primitive token *)
(* A numeral interpreter is the pair of an interpreter for **integer**
numbers in terms and an optional interpreter in pattern, if
negative numbers are not supported, the interpreter must fail with
an appropriate error message *)
type notation_location = dir_path * string
type required_module = section_path * string list
type cases_pattern_status = bool (* true = use prim token in patterns *)
type 'a prim_token_interpreter =
loc -> 'a -> rawconstr
type 'a prim_token_uninterpreter =
rawconstr list * (rawconstr -> 'a option) * cases_pattern_status
val declare_numeral_interpreter : scope_name -> required_module ->
bigint prim_token_interpreter -> bigint prim_token_uninterpreter -> unit
val declare_string_interpreter : scope_name -> required_module ->
string prim_token_interpreter -> string prim_token_uninterpreter -> unit
(* Return the [term]/[cases_pattern] bound to a primitive token in a
given scope context*)
val interp_prim_token : loc -> prim_token -> local_scopes ->
rawconstr * (notation_location * scope_name option)
val interp_prim_token_cases_pattern : loc -> prim_token -> name ->
local_scopes -> cases_pattern * (notation_location * scope_name option)
(* Return the primitive token associated to a [term]/[cases_pattern];
raise [No_match] if no such token *)
val uninterp_prim_token :
rawconstr -> scope_name * prim_token
val uninterp_prim_token_cases_pattern :
cases_pattern -> name * scope_name * prim_token
val availability_of_prim_token :
scope_name -> local_scopes -> prim_token -> delimiters option option
(*s Declare and interpret back and forth a notation *)
(* Binds a notation in a given scope to an interpretation *)
type interp_rule =
| NotationRule of scope_name option * notation
| SynDefRule of kernel_name
val declare_notation_interpretation : notation -> scope_name option ->
interpretation -> notation_location -> unit
val declare_uninterpretation : interp_rule -> interpretation -> unit
(* Return the interpretation bound to a notation *)
val interp_notation : loc -> notation -> local_scopes ->
interpretation * (notation_location * scope_name option)
(* Return the possible notations for a given term *)
val uninterp_notations : rawconstr ->
(interp_rule * interpretation * int option) list
val uninterp_cases_pattern_notations : cases_pattern ->
(interp_rule * interpretation * int option) list
(* Test if a notation is available in the scopes *)
(* context [scopes]; if available, the result is not None; the first *)
(* argument is itself not None if a delimiters is needed *)
val availability_of_notation : scope_name option * notation -> local_scopes ->
(scope_name option * delimiters option) option
(*s Declare and test the level of a (possibly uninterpreted) notation *)
val declare_notation_level : notation -> level -> unit
val level_of_notation : notation -> level (* raise [Not_found] if no level *)
(*s** Miscellaneous *)
(* Checks for already existing notations *)
val exists_notation_in_scope : scope_name option -> notation ->
interpretation -> bool
(* Declares and looks for scopes associated to arguments of a global ref *)
val declare_arguments_scope :
bool (* true=local *) -> global_reference -> scope_name option list -> unit
val find_arguments_scope : global_reference -> scope_name option list
val declare_class_scope : scope_name -> Classops.cl_typ -> unit
val declare_ref_arguments_scope : global_reference -> unit
val compute_arguments_scope : Term.types -> scope_name option list
(* Building notation key *)
type symbol =
| Terminal of string
| NonTerminal of identifier
| SProdList of identifier * symbol list
| Break of int
val make_notation_key : symbol list -> notation
val decompose_notation_key : notation -> symbol list
(* Prints scopes (expect a pure aconstr printer *)
val pr_scope : (rawconstr -> std_ppcmds) -> scope_name -> std_ppcmds
val pr_scopes : (rawconstr -> std_ppcmds) -> std_ppcmds
val locate_notation : (rawconstr -> std_ppcmds) -> notation -> std_ppcmds
val pr_visibility: (rawconstr -> std_ppcmds) -> scope_name option -> std_ppcmds
(**********************************************************************)
(*s Printing rules for notations *)
(* Declare and look for the printing rule for symbolic notations *)
type unparsing_rule = unparsing list * precedence
val declare_notation_printing_rule : notation -> unparsing_rule -> unit
val find_notation_printing_rule : notation -> unparsing_rule
(**********************************************************************)
(* Rem: printing rules for primitive token are canonical *)
|
