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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: symbols.mli,v 1.22.2.3 2005/01/21 17:14:10 herbelin Exp $ i*)
(*i*)
open Util
open Pp
open Bignat
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] *)
val type_scope : scope_name
val declare_scope : scope_name -> unit
(* Open scope *)
val current_scopes : unit -> scopes
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 a numeral interpretation *)
(* 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 num_interpreter =
(loc -> bigint -> rawconstr)
* (loc -> bigint -> name -> cases_pattern) option
type num_uninterpreter =
rawconstr list * (rawconstr -> bigint option)
* (cases_pattern -> bigint option) option
type required_module = global_reference * string list
val declare_numeral_interpreter : scope_name -> required_module ->
num_interpreter -> num_uninterpreter -> unit
(* Return the [term]/[cases_pattern] bound to a numeral in a given scope context*)
val interp_numeral : loc -> bigint -> scope_name list -> rawconstr
val interp_numeral_as_pattern : loc -> bigint -> name -> scope_name list ->
cases_pattern
(* Return the numeral bound to a [term]/[cases_pattern]; raise [No_match] if no *)
(* such numeral *)
val uninterp_numeral : rawconstr -> scope_name * bigint
val uninterp_cases_numeral : cases_pattern -> scope_name * bigint
val availability_of_numeral : scope_name -> scopes -> 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 -> dir_path * string -> bool -> unit
val declare_uninterpretation : interp_rule -> interpretation -> unit
(* Return the interpretation bound to a notation *)
val interp_notation : loc -> notation -> scope_name list ->
interpretation * ((dir_path * string) * 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; the second *)
(* argument is a numeral printer if the *)
val availability_of_notation : scope_name option * notation -> scopes ->
(scope_name option * delimiters option) option
(*s Declare and test the level of a (possibly uninterpreted) notation *)
val declare_notation_level : notation -> level option * level -> unit
val level_of_notation : notation -> level option * 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 * bool
(* Declares and looks for scopes associated to arguments of a global ref *)
val declare_arguments_scope: 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 numerals are trivial *)
|
